:root {
  color-scheme: light;
  --navy-950: #00102f;
  --navy-900: #001b52;
  --navy-800: #002366;
  --navy-700: #0b3d91;
  --blue-600: #2864d7;
  --blue-500: #3f78ea;
  --blue-200: #bdd2ff;
  --blue-100: #dce8ff;
  --blue-50: #eef4ff;
  --ink: #14213d;
  --muted: #66738e;
  --soft-muted: #8a96ae;
  --bg: #f5f8ff;
  --surface: #ffffff;
  --surface-soft: #f8faff;
  --line: #e2e9f5;
  --line-strong: #d2dced;
  --green: #18a875;
  --green-dark: #087d55;
  --green-soft: #e4f8f0;
  --red: #df4f63;
  --red-dark: #b82f45;
  --red-soft: #fff0f3;
  --yellow: #ffc83d;
  --yellow-soft: #fff7d6;
  --orange: #f78b34;
  --purple: #7c58d6;
  --shadow: 0 18px 48px rgba(21, 48, 104, 0.11);
  --shadow-small: 0 8px 24px rgba(21, 48, 104, 0.08);
  --shadow-blue: 0 18px 44px rgba(0, 35, 102, 0.24);
  --radius-xl: 30px;
  --radius-lg: 23px;
  --radius-md: 17px;
  --radius-sm: 13px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% -10%, rgba(63, 120, 234, 0.15), transparent 30rem),
    radial-gradient(circle at 92% 8%, rgba(24, 168, 117, 0.06), transparent 26rem),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-rounded, "SF Pro Rounded", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 4px solid rgba(63, 120, 234, 0.25);
  outline-offset: 3px;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Shared controls */
.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 50px;
  padding: 13px 18px;
  border: 0;
  border-radius: var(--radius-md);
  font-weight: 900;
  letter-spacing: -0.1px;
  cursor: pointer;
  transition: transform 150ms ease, filter 150ms ease, box-shadow 150ms ease, background 150ms ease;
  touch-action: manipulation;
}

.button:hover:not(:disabled) {
  filter: brightness(1.025);
  transform: translateY(-1px);
}

.button:active:not(:disabled) {
  transform: translateY(1px) scale(0.985);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.button-primary {
  color: #fff;
  background: linear-gradient(145deg, var(--navy-800), var(--blue-600));
  box-shadow: 0 9px 0 var(--navy-950), 0 14px 26px rgba(0, 35, 102, 0.2);
}

.button-primary:active:not(:disabled) {
  box-shadow: 0 4px 0 var(--navy-950), 0 9px 18px rgba(0, 35, 102, 0.18);
}

.button-white {
  color: var(--navy-800);
  background: #fff;
  box-shadow: 0 8px 0 rgba(0, 16, 47, 0.25), 0 15px 32px rgba(0, 0, 0, 0.15);
}

.button-white:active:not(:disabled) {
  box-shadow: 0 3px 0 rgba(0, 16, 47, 0.25), 0 9px 18px rgba(0, 0, 0, 0.12);
}

.button-soft {
  color: var(--navy-800);
  background: var(--blue-50);
  box-shadow: inset 0 0 0 1px var(--blue-100);
}

.button-green {
  color: #fff;
  background: linear-gradient(145deg, #1db983, var(--green));
  box-shadow: 0 8px 0 var(--green-dark), 0 13px 25px rgba(24, 168, 117, 0.2);
}

.button-danger-soft {
  color: var(--red-dark);
  background: var(--red-soft);
}

.button-small {
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 14px;
}

.button-block {
  width: 100%;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 15px;
  color: var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow-small);
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.icon-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(21, 48, 104, 0.12);
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-small);
}

.card-padding {
  padding: 20px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--blue-600);
  font-size: 12px;
  font-weight: 1000;
  letter-spacing: 0.9px;
  text-transform: uppercase;
}

.muted {
  color: var(--muted);
}

.soft-muted {
  color: var(--soft-muted);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.section-heading h2,
.section-heading h3 {
  margin: 0;
  letter-spacing: -0.5px;
}

.section-heading h2 {
  font-size: clamp(21px, 3vw, 27px);
}

.section-heading h3 {
  font-size: 19px;
}

.section-heading p {
  margin: 5px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 29px;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--navy-800);
  background: var(--blue-50);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.badge-green {
  color: var(--green-dark);
  background: var(--green-soft);
}

.badge-yellow {
  color: #755300;
  background: var(--yellow-soft);
}

.progress-track {
  position: relative;
  width: 100%;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: #e9eef7;
  box-shadow: inset 0 1px 2px rgba(20, 33, 61, 0.06);
}

.progress-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--navy-800), var(--blue-500));
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.09);
  transition: width 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.progress-fill-green {
  background: linear-gradient(90deg, var(--green-dark), #29c891);
}

/* Authentication */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.07fr) minmax(430px, 0.93fr);
}

.auth-showcase {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
  padding: clamp(28px, 5vw, 64px);
  color: #fff;
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 255, 255, 0.14), transparent 18rem),
    radial-gradient(circle at 15% 90%, rgba(80, 130, 244, 0.3), transparent 22rem),
    linear-gradient(145deg, var(--navy-950), var(--navy-800) 58%, #174fac);
}

.auth-showcase::after {
  content: "";
  position: absolute;
  right: -150px;
  bottom: -210px;
  width: 520px;
  height: 520px;
  border: 70px solid rgba(255, 255, 255, 0.055);
  border-radius: 50%;
}

.auth-brand {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 25px;
  font-weight: 1000;
  letter-spacing: 1.2px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: #fff;
  color: var(--navy-800);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.16);
}

.brand-logo {
  width: 58px;
  height: 58px;
  object-fit: contain;
  border-radius: 16px;
  background: #fff;
  padding: 3px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.16);
}

.brand-wordmark {
  display: inline-block;
  line-height: 1;
}

.app-brand .brand-logo--small {
  width: 45px;
  height: 45px;
  border-radius: 13px;
  padding: 2px;
  box-shadow: 0 8px 20px rgba(0, 35, 102, 0.18);
}

.certificate-brand .brand-logo--cert {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  padding: 3px;
  box-shadow: 0 8px 18px rgba(0, 35, 102, 0.12);
}

.loading-logo img {
  width: 70px;
  height: 70px;
  object-fit: contain;
  border-radius: 20px;
  background: #fff;
  padding: 5px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.field-help {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.access-code-field input {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 900;
}

.support-email {
  color: inherit;
  font-weight: 900;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.auth-copy {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 44px 0 20px;
}

.auth-copy h1 {
  max-width: 660px;
  margin: 0 0 17px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 0.98;
  letter-spacing: -3px;
}

.auth-copy p {
  max-width: 580px;
  margin: 0;
  color: #d6e2ff;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.55;
}

.auth-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 25px;
}

.auth-benefit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 13px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  color: #eaf1ff;
  background: rgba(255, 255, 255, 0.08);
  font-size: 13px;
  font-weight: 800;
  backdrop-filter: blur(8px);
}

.auth-bear-stage {
  position: absolute;
  right: clamp(20px, 5vw, 75px);
  bottom: 3vh;
  z-index: 1;
  transform: scale(1.22);
  transform-origin: bottom right;
  opacity: 0.98;
}

.auth-form-side {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 28px;
  background: rgba(248, 250, 255, 0.88);
  backdrop-filter: blur(14px);
}

.auth-panel {
  width: min(470px, 100%);
  padding: clamp(24px, 4vw, 36px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow);
}

.auth-mobile-brand {
  display: none;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--navy-800);
  font-weight: 1000;
  letter-spacing: 0.8px;
}

.auth-panel h2 {
  margin: 0;
  font-size: 30px;
  letter-spacing: -1px;
}

.auth-panel > p {
  margin: 9px 0 22px;
  color: var(--muted);
  line-height: 1.5;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 22px;
  padding: 5px;
  border-radius: 16px;
  background: var(--blue-50);
}

.auth-tab {
  min-height: 42px;
  border: 0;
  border-radius: 12px;
  color: var(--muted);
  background: transparent;
  font-weight: 900;
  cursor: pointer;
}

.auth-tab.is-active {
  color: var(--navy-800);
  background: #fff;
  box-shadow: 0 5px 16px rgba(21, 48, 104, 0.09);
}

.form-stack {
  display: grid;
  gap: 15px;
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  font-size: 13px;
  font-weight: 900;
}

.field input,
.field select {
  width: 100%;
  min-height: 52px;
  padding: 12px 14px;
  border: 2px solid var(--line);
  border-radius: 15px;
  color: var(--ink);
  background: #fff;
  transition: border 150ms ease, box-shadow 150ms ease;
}

.field input::placeholder {
  color: #a2acc0;
}

.field input:focus,
.field select:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(63, 120, 234, 0.12);
  outline: none;
}

.form-error {
  padding: 11px 13px;
  border-radius: 13px;
  color: var(--red-dark);
  background: var(--red-soft);
  font-size: 13px;
  font-weight: 800;
}

.demo-box {
  margin-top: 18px;
  padding: 14px;
  border: 1px dashed var(--blue-200);
  border-radius: 16px;
  background: var(--blue-50);
}

.demo-box strong {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
}

.demo-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* Bear mascot */
.kalo-wrap {
  position: relative;
  width: 230px;
  height: 250px;
  pointer-events: none;
}

.kalo-bear {
  position: absolute;
  inset: 0;
  transform-origin: 50% 90%;
  filter: drop-shadow(0 20px 18px rgba(0, 0, 0, 0.2));
}

.kalo-bear .bear-body {
  position: absolute;
  left: 46px;
  bottom: 10px;
  width: 138px;
  height: 124px;
  border: 7px solid #071735;
  border-radius: 58% 58% 45% 45%;
  background: linear-gradient(145deg, #0b4da8 0%, #002366 48%, #001b52 100%);
}

.kalo-bear .bear-belly {
  position: absolute;
  left: 78px;
  bottom: 25px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 74px;
  height: 74px;
  border: 5px solid #071735;
  border-radius: 50%;
  color: var(--navy-800);
  background: #dbe8ff;
  font-size: 29px;
  font-weight: 1000;
}

.kalo-bear .bear-ear {
  position: absolute;
  top: 20px;
  z-index: 1;
  width: 66px;
  height: 66px;
  border: 7px solid #071735;
  border-radius: 50%;
  background: #002366;
}

.kalo-bear .bear-ear::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: #8fb0ef;
}

.kalo-bear .bear-ear-left {
  left: 25px;
  transform: rotate(-14deg);
}

.kalo-bear .bear-ear-right {
  right: 25px;
  transform: rotate(14deg);
}

.kalo-bear .bear-head {
  position: absolute;
  top: 37px;
  left: 30px;
  z-index: 2;
  width: 170px;
  height: 158px;
  border: 8px solid #071735;
  border-radius: 49% 49% 46% 46%;
  background: linear-gradient(145deg, #0c50ad 0%, #002b7e 53%, #001b52 100%);
  box-shadow: inset 0 -14px 0 rgba(0, 8, 31, 0.12);
}

.kalo-bear .bear-muzzle {
  position: absolute;
  top: 91px;
  left: 68px;
  z-index: 4;
  width: 94px;
  height: 76px;
  border: 5px solid #071735;
  border-radius: 52% 52% 48% 48%;
  background: #dbe8ff;
}

.kalo-bear .bear-eye {
  position: absolute;
  top: 84px;
  z-index: 5;
  width: 17px;
  height: 23px;
  border-radius: 50%;
  background: #071735;
  transition: height 160ms ease, transform 160ms ease;
}

.kalo-bear .bear-eye::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 5px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
}

.kalo-bear .bear-eye-left {
  left: 73px;
}

.kalo-bear .bear-eye-right {
  right: 73px;
}

.kalo-bear .bear-brow {
  position: absolute;
  top: 68px;
  z-index: 6;
  width: 31px;
  height: 8px;
  border-radius: 999px;
  background: #071735;
  opacity: 0;
  transition: opacity 160ms ease, transform 160ms ease;
}

.kalo-bear .bear-brow-left {
  left: 62px;
}

.kalo-bear .bear-brow-right {
  right: 62px;
}

.kalo-bear .bear-nose {
  position: absolute;
  top: 111px;
  left: 99px;
  z-index: 7;
  width: 32px;
  height: 23px;
  border-radius: 48% 48% 58% 58%;
  background: #071735;
}

.kalo-bear .bear-smile {
  position: absolute;
  top: 132px;
  left: 78px;
  z-index: 7;
  width: 74px;
  height: 36px;
  border-bottom: 7px solid #071735;
  border-radius: 0 0 50% 50%;
  transition: border 160ms ease, top 160ms ease;
}

.kalo-bear .bear-smile::after {
  content: "";
  position: absolute;
  right: 25px;
  bottom: -7px;
  width: 24px;
  height: 9px;
  border-radius: 50%;
  background: #ef6576;
}

.kalo-bear .bear-cheek {
  position: absolute;
  top: 126px;
  z-index: 6;
  width: 24px;
  height: 15px;
  border-radius: 50%;
  background: #77a6f7;
  opacity: 0.5;
}

.kalo-bear .bear-cheek-left {
  left: 53px;
}

.kalo-bear .bear-cheek-right {
  right: 53px;
}

.kalo-bear .bear-arm {
  position: absolute;
  bottom: 48px;
  z-index: 0;
  width: 60px;
  height: 88px;
  border: 7px solid #071735;
  border-radius: 50%;
  background: #002366;
}

.kalo-bear .bear-arm-left {
  left: 22px;
  transform: rotate(22deg);
}

.kalo-bear .bear-arm-right {
  right: 22px;
  transform: rotate(-22deg);
}

.kalo-bear.is-happy {
  animation: bearBounce 620ms cubic-bezier(0.2, 0.85, 0.25, 1);
}

.kalo-bear.is-happy .bear-eye {
  height: 8px;
  transform: translateY(7px);
}

.kalo-bear.is-happy .bear-eye::after {
  display: none;
}

.kalo-bear.is-thinking {
  animation: bearThink 1.2s ease-in-out infinite alternate;
}

.kalo-bear.is-thinking .bear-eye-right {
  height: 8px;
  transform: translateY(7px) rotate(-10deg);
}

.kalo-bear.is-worried .bear-brow {
  opacity: 1;
}

.kalo-bear.is-worried .bear-brow-left {
  transform: rotate(16deg);
}

.kalo-bear.is-worried .bear-brow-right {
  transform: rotate(-16deg);
}

.kalo-bear.is-worried .bear-smile {
  top: 150px;
  border-top: 7px solid #071735;
  border-bottom: 0;
  border-radius: 50% 50% 0 0;
}

.kalo-bear.is-worried .bear-smile::after {
  display: none;
}

.kalo-bear.is-dancing {
  animation: bearDance 760ms ease-in-out infinite alternate;
}

@keyframes bearBounce {
  0% { transform: translateY(0) rotate(0deg) scale(1); }
  32% { transform: translateY(-22px) rotate(-5deg) scale(1.04); }
  62% { transform: translateY(3px) rotate(4deg) scale(0.99); }
  100% { transform: translateY(0) rotate(0deg) scale(1); }
}

@keyframes bearThink {
  from { transform: rotate(-2deg) translateY(0); }
  to { transform: rotate(2deg) translateY(-5px); }
}

@keyframes bearDance {
  from { transform: translateY(-3px) rotate(-7deg) scale(1.02); }
  to { transform: translateY(-14px) rotate(7deg) scale(1.06); }
}

/* App shell */
.app-shell {
  width: min(1220px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 16px 18px 40px;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
  margin: 0 -8px 14px;
  padding: 8px;
  background: rgba(245, 248, 255, 0.86);
  backdrop-filter: blur(18px);
}

.app-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 1000;
  letter-spacing: 0.9px;
}

.app-brand .brand-mark {
  width: 43px;
  height: 43px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(145deg, var(--navy-800), var(--blue-600));
  box-shadow: 0 8px 20px rgba(0, 35, 102, 0.18);
}

.header-stats {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 5px 16px rgba(21, 48, 104, 0.055);
  font-size: 13px;
  font-weight: 1000;
}

.app-layout {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.side-nav {
  position: sticky;
  top: 84px;
  display: grid;
  gap: 7px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-small);
  backdrop-filter: blur(14px);
}

.nav-button {
  display: flex;
  align-items: center;
  gap: 11px;
  min-height: 49px;
  padding: 11px 13px;
  border: 0;
  border-radius: 15px;
  color: var(--muted);
  background: transparent;
  font-weight: 900;
  text-align: left;
  cursor: pointer;
  transition: color 150ms ease, background 150ms ease, transform 150ms ease;
}

.nav-button:hover {
  color: var(--navy-800);
  background: var(--blue-50);
}

.nav-button.is-active {
  color: var(--navy-800);
  background: linear-gradient(145deg, var(--blue-50), #fff);
  box-shadow: inset 0 0 0 1px var(--blue-100), 0 6px 16px rgba(21, 48, 104, 0.07);
}

.nav-icon {
  display: grid;
  place-items: center;
  width: 28px;
  font-size: 20px;
}

.app-main {
  min-width: 0;
}

.bottom-nav {
  display: none;
}

/* Student home */
.student-hero {
  position: relative;
  min-height: 295px;
  overflow: hidden;
  padding: 29px 325px 28px 29px;
  border-radius: var(--radius-xl);
  color: #fff;
  background:
    radial-gradient(circle at 82% 5%, rgba(255, 255, 255, 0.14), transparent 14rem),
    linear-gradient(135deg, var(--navy-950), var(--navy-800) 58%, #2459bb);
  box-shadow: var(--shadow-blue);
}

.student-hero::before {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -210px;
  width: 380px;
  height: 380px;
  border: 56px solid rgba(255, 255, 255, 0.055);
  border-radius: 50%;
}

.student-hero-copy {
  position: relative;
  z-index: 3;
}

.student-hero .eyebrow {
  color: #bdd2ff;
}

.student-hero h1 {
  max-width: 680px;
  margin: 0 0 11px;
  font-size: clamp(31px, 4.2vw, 47px);
  line-height: 1.02;
  letter-spacing: -1.8px;
}

.student-hero p {
  max-width: 610px;
  margin: 0 0 19px;
  color: #d7e3ff;
  line-height: 1.52;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-wrap: wrap;
  margin-top: 18px;
  color: #d4e1ff;
  font-size: 12px;
  font-weight: 800;
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.hero-kalo {
  position: absolute;
  right: 24px;
  bottom: 4px;
  z-index: 2;
}

.speech-bubble {
  position: absolute;
  right: 196px;
  top: 24px;
  z-index: 4;
  width: 190px;
  padding: 13px 14px;
  border-radius: 18px;
  color: var(--ink);
  background: #fff;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.35;
  animation: bubbleIn 360ms ease both;
}

.speech-bubble::after {
  content: "";
  position: absolute;
  right: -11px;
  bottom: 20px;
  border-width: 11px 0 11px 13px;
  border-style: solid;
  border-color: transparent transparent transparent #fff;
}

@keyframes bubbleIn {
  from { opacity: 0; transform: translateY(8px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 18px;
  margin-top: 18px;
}

.stack {
  display: grid;
  gap: 18px;
  align-content: start;
}

.current-path-card {
  padding: 21px;
}

.path-preview {
  display: grid;
  gap: 11px;
}

.lesson-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  min-height: 79px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-soft);
  transition: transform 150ms ease, border 150ms ease, box-shadow 150ms ease;
}

.lesson-row.is-current {
  border-color: var(--blue-200);
  background: linear-gradient(145deg, var(--blue-50), #fff);
  box-shadow: 0 9px 22px rgba(0, 35, 102, 0.08);
}

.lesson-row.is-complete {
  border-color: #bdebd9;
  background: linear-gradient(145deg, var(--green-soft), #fff);
}

.lesson-row.is-locked {
  opacity: 0.62;
}

.lesson-node {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 5px solid #dce4f1;
  border-radius: 50%;
  color: var(--navy-800);
  background: #fff;
  font-size: 20px;
  font-weight: 1000;
  box-shadow: 0 5px 0 #cdd7e7;
}

.lesson-row.is-current .lesson-node {
  border-color: #9dbaf5;
  color: #fff;
  background: linear-gradient(145deg, var(--navy-800), var(--blue-500));
  box-shadow: 0 5px 0 var(--navy-950), 0 9px 18px rgba(0, 35, 102, 0.15);
}

.lesson-row.is-complete .lesson-node {
  border-color: #8fddc2;
  color: #fff;
  background: var(--green);
  box-shadow: 0 5px 0 var(--green-dark);
}

.lesson-row-copy {
  min-width: 0;
}

.lesson-row-copy strong {
  display: block;
  overflow: hidden;
  margin-bottom: 3px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-row-copy small {
  display: block;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quest-list {
  display: grid;
  gap: 11px;
}

.quest-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.quest-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.quest-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 13px;
  background: var(--blue-50);
  font-size: 19px;
}

.quest-item.is-complete .quest-icon {
  background: var(--green-soft);
}

.quest-copy strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}

.quest-copy .progress-track {
  height: 8px;
}

.quest-count {
  min-width: 42px;
  text-align: right;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.weekly-challenge {
  position: relative;
  overflow: hidden;
  padding: 21px;
  color: #fff;
  background: linear-gradient(145deg, #6a43c7, #865feb);
  box-shadow: 0 14px 32px rgba(124, 88, 214, 0.24);
}

.weekly-challenge::after {
  content: "🏆";
  position: absolute;
  right: -2px;
  bottom: -22px;
  font-size: 98px;
  opacity: 0.16;
  transform: rotate(-12deg);
}

.weekly-challenge h3 {
  position: relative;
  z-index: 2;
  margin: 0 0 7px;
}

.weekly-challenge p {
  position: relative;
  z-index: 2;
  margin: 0 0 15px;
  color: #eee8ff;
  font-size: 13px;
  line-height: 1.45;
}

.weekly-challenge .progress-track {
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.22);
}

.weekly-challenge .progress-fill {
  background: #fff;
}

/* Path view */
.page-title {
  margin: 3px 0 20px;
}

.page-title h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 44px);
  letter-spacing: -1.5px;
}

.page-title p {
  max-width: 670px;
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.unit-list {
  display: grid;
  gap: 17px;
}

.unit-card {
  overflow: hidden;
}

.unit-header {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 19px;
  border: 0;
  color: inherit;
  background: transparent;
  text-align: left;
}

button.unit-header {
  cursor: pointer;
}

.unit-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 17px;
  background: linear-gradient(145deg, var(--blue-50), #fff);
  box-shadow: inset 0 0 0 1px var(--blue-100);
  font-size: 27px;
}

.unit-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.unit-title-row strong {
  font-size: 18px;
}

.unit-copy p {
  margin: 4px 0 9px;
  color: var(--muted);
  font-size: 13px;
}

.unit-copy .progress-track {
  max-width: 380px;
  height: 8px;
}

.unit-chevron {
  color: var(--muted);
  font-size: 18px;
  transition: transform 180ms ease;
}

.unit-card.is-open .unit-chevron {
  transform: rotate(180deg);
}

.unit-lessons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
  padding: 0 18px 18px;
}

.path-lesson {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr) auto;
  align-items: center;
  gap: 11px;
  min-height: 78px;
  padding: 12px;
  border: 2px solid var(--line);
  border-radius: 17px;
  color: var(--ink);
  background: var(--surface-soft);
  text-align: left;
  cursor: pointer;
  transition: transform 150ms ease, border 150ms ease, box-shadow 150ms ease;
}

.path-lesson:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: var(--blue-200);
  box-shadow: var(--shadow-small);
}

.path-lesson:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.path-lesson.is-current {
  border-color: var(--blue-500);
  background: linear-gradient(145deg, var(--blue-50), #fff);
}

.path-lesson.is-complete {
  border-color: #9ee2cb;
  background: linear-gradient(145deg, var(--green-soft), #fff);
}

.path-lesson-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 15px;
  background: #fff;
  box-shadow: inset 0 0 0 1px var(--line);
  font-size: 22px;
}

.path-lesson-copy strong,
.path-lesson-copy small {
  display: block;
}

.path-lesson-copy strong {
  margin-bottom: 3px;
  font-size: 14px;
}

.path-lesson-copy small {
  color: var(--muted);
  font-size: 11px;
}

.coming-soon-card {
  opacity: 0.7;
}

/* Challenges and progress */
.content-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric-card {
  padding: 17px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.metric-card strong {
  display: block;
  margin: 7px 0 3px;
  font-size: 28px;
  letter-spacing: -1px;
}

.metric-card small {
  color: var(--soft-muted);
  font-size: 11px;
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 11px;
}

.achievement {
  min-height: 146px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-soft);
}

.achievement.is-locked {
  filter: grayscale(0.85);
  opacity: 0.52;
}

.achievement-icon {
  display: grid;
  place-items: center;
  width: 49px;
  height: 49px;
  margin-bottom: 12px;
  border-radius: 15px;
  background: var(--yellow-soft);
  font-size: 25px;
}

.achievement strong {
  display: block;
  margin-bottom: 5px;
}

.achievement p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.activity-chart {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 9px;
  align-items: end;
  min-height: 190px;
  padding-top: 16px;
}

.activity-column {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 8px;
  height: 160px;
  text-align: center;
}

.activity-bar-wrap {
  display: flex;
  align-items: end;
  justify-content: center;
  height: 132px;
}

.activity-bar {
  width: min(34px, 75%);
  min-height: 6px;
  border-radius: 10px 10px 5px 5px;
  background: linear-gradient(180deg, var(--blue-500), var(--navy-800));
  box-shadow: 0 6px 14px rgba(0, 35, 102, 0.15);
  transition: height 450ms ease;
}

.activity-column small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.skill-list {
  display: grid;
  gap: 14px;
}

.skill-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 45px;
  gap: 10px;
  align-items: center;
}

.skill-row strong {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
}

.skill-row > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-align: right;
}

.profile-hero {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 17px;
  padding: 22px;
}

.profile-avatar {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  border: 6px solid var(--blue-100);
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(145deg, var(--navy-800), var(--blue-500));
  font-size: 31px;
  font-weight: 1000;
  box-shadow: 0 8px 0 #9fb7e8;
}

.profile-copy h1 {
  margin: 0 0 5px;
  font-size: 28px;
  letter-spacing: -0.8px;
}

.profile-copy p {
  margin: 0;
  color: var(--muted);
}

.settings-list {
  display: grid;
  gap: 2px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 58px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.setting-row:last-child {
  border-bottom: 0;
}

.setting-copy strong,
.setting-copy span {
  display: block;
}

.setting-copy strong {
  margin-bottom: 3px;
  font-size: 14px;
}

.setting-copy span {
  color: var(--muted);
  font-size: 12px;
}

.toggle {
  position: relative;
  width: 52px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  background: #ccd6e6;
  cursor: pointer;
  transition: background 180ms ease;
}

.toggle::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
  transition: transform 180ms ease;
}

.toggle.is-on {
  background: var(--green);
}

.toggle.is-on::after {
  transform: translateX(22px);
}

/* Teacher */
.teacher-hero {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border-radius: var(--radius-xl);
  color: #fff;
  background:
    radial-gradient(circle at 90% 0%, rgba(255, 255, 255, 0.14), transparent 15rem),
    linear-gradient(135deg, var(--navy-950), var(--navy-800) 62%, #2459bb);
  box-shadow: var(--shadow-blue);
}

.teacher-hero::after {
  content: "🏫";
  position: absolute;
  right: 25px;
  bottom: -31px;
  font-size: 128px;
  opacity: 0.11;
}

.teacher-hero h1 {
  position: relative;
  z-index: 2;
  margin: 0 0 8px;
  font-size: clamp(30px, 5vw, 44px);
  letter-spacing: -1.5px;
}

.teacher-hero p {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0;
  color: #d6e3ff;
  line-height: 1.5;
}

.class-code {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 18px;
  padding: 11px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 13px;
  font-weight: 900;
  backdrop-filter: blur(10px);
}

.teacher-metrics {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 11px;
  margin-top: 17px;
}

.teacher-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.teacher-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: #fff;
}

.teacher-table th,
.teacher-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

.teacher-table th {
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.teacher-table td {
  font-size: 13px;
}

.teacher-table tbody tr:last-child td {
  border-bottom: 0;
}

.student-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mini-avatar {
  display: grid;
  place-items: center;
  width: 35px;
  height: 35px;
  border-radius: 12px;
  color: var(--navy-800);
  background: var(--blue-50);
  font-weight: 1000;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 6px;
  border-radius: 50%;
  background: #c5cede;
}

.status-dot.is-active {
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(24, 168, 117, 0.12);
}

.help-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 8px;
  border-radius: 999px;
  color: var(--red-dark);
  background: var(--red-soft);
  font-size: 11px;
  font-weight: 900;
}

/* Lesson experience */
.lesson-shell {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  background:
    radial-gradient(circle at 10% 0%, rgba(63, 120, 234, 0.09), transparent 25rem),
    #f8faff;
  animation: lessonEnter 220ms ease both;
}

@keyframes lessonEnter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.lesson-topbar {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  width: min(860px, calc(100% - 28px));
  min-height: 72px;
  margin: 0 auto;
}

.lesson-progress-wrap {
  position: relative;
}

.lesson-progress-wrap .progress-track {
  height: 15px;
}

.lesson-combo {
  position: absolute;
  right: 6px;
  top: -24px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 1000;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.lesson-combo.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.lesson-heart-count {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-width: 58px;
  font-weight: 1000;
}

.lesson-body {
  width: min(760px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0 132px;
  overflow-y: auto;
}

.exercise-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 175px;
  gap: 24px;
  min-height: 450px;
  padding: clamp(19px, 4vw, 32px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow);
}

.exercise-main {
  min-width: 0;
}

.exercise-number {
  margin-bottom: 7px;
  color: var(--blue-600);
  font-size: 11px;
  font-weight: 1000;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.exercise-instruction {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.exercise-prompt {
  margin: 0 0 22px;
  font-size: clamp(24px, 4.5vw, 34px);
  line-height: 1.13;
  letter-spacing: -0.9px;
}

.exercise-kalo {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  align-self: stretch;
}

.exercise-kalo .kalo-wrap {
  width: 165px;
  height: 190px;
  transform: scale(0.73);
  transform-origin: bottom center;
}

.kalo-caption {
  max-width: 160px;
  margin-bottom: 5px;
  padding: 10px 11px;
  border-radius: 14px;
  color: var(--navy-800);
  background: var(--blue-50);
  font-size: 11px;
  font-weight: 900;
  line-height: 1.35;
  text-align: center;
}

.choice-list {
  display: grid;
  gap: 11px;
}

.choice-button {
  display: grid;
  grid-template-columns: 35px minmax(0, 1fr);
  align-items: center;
  gap: 11px;
  width: 100%;
  min-height: 62px;
  padding: 12px 14px;
  border: 2px solid var(--line-strong);
  border-bottom-width: 5px;
  border-radius: 17px;
  color: var(--ink);
  background: #fff;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
  transition: border 150ms ease, background 150ms ease, transform 150ms ease;
}

.choice-button:hover:not(:disabled) {
  border-color: var(--blue-200);
  background: var(--blue-50);
  transform: translateY(-1px);
}

.choice-button.is-selected {
  border-color: var(--blue-500);
  color: var(--navy-800);
  background: var(--blue-50);
}

.choice-button.is-correct {
  border-color: var(--green);
  color: var(--green-dark);
  background: var(--green-soft);
}

.choice-button.is-wrong {
  border-color: var(--red);
  color: var(--red-dark);
  background: var(--red-soft);
}

.choice-letter {
  display: grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border-radius: 10px;
  background: var(--blue-50);
  font-size: 12px;
  font-weight: 1000;
}

.audio-card {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 20px;
  padding: 15px;
  border: 2px solid var(--blue-100);
  border-radius: 18px;
  background: var(--blue-50);
}

.audio-button {
  display: grid;
  place-items: center;
  flex: 0 0 58px;
  width: 58px;
  height: 58px;
  border: 0;
  border-radius: 17px;
  color: #fff;
  background: linear-gradient(145deg, var(--navy-800), var(--blue-500));
  box-shadow: 0 7px 0 var(--navy-950), 0 12px 20px rgba(0, 35, 102, 0.17);
  font-size: 24px;
  cursor: pointer;
}

.audio-button:active {
  transform: translateY(3px);
  box-shadow: 0 4px 0 var(--navy-950), 0 8px 15px rgba(0, 35, 102, 0.14);
}

.audio-copy strong,
.audio-copy small {
  display: block;
}

.audio-copy strong {
  margin-bottom: 4px;
}

.audio-copy small {
  color: var(--muted);
  line-height: 1.35;
}

.answer-zone {
  min-height: 72px;
  margin-bottom: 17px;
  padding: 12px;
  border: 2px dashed var(--line-strong);
  border-radius: 17px;
  background: var(--surface-soft);
}

.answer-zone.is-filled {
  border-style: solid;
  border-color: var(--blue-200);
  background: var(--blue-50);
}

.token-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.word-token {
  min-height: 44px;
  padding: 9px 13px;
  border: 2px solid var(--line-strong);
  border-bottom-width: 4px;
  border-radius: 13px;
  color: var(--ink);
  background: #fff;
  font-weight: 900;
  cursor: pointer;
}

.word-token:hover {
  border-color: var(--blue-200);
}

.word-token.is-used {
  opacity: 0.25;
  pointer-events: none;
}

.match-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 14px;
}

.match-column {
  display: grid;
  gap: 9px;
  align-content: start;
}

.match-tile {
  min-height: 53px;
  padding: 10px 12px;
  border: 2px solid var(--line-strong);
  border-bottom-width: 4px;
  border-radius: 14px;
  color: var(--ink);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
}

.match-tile.is-selected {
  border-color: var(--blue-500);
  color: var(--navy-800);
  background: var(--blue-50);
}

.match-tile.is-matched {
  border-color: var(--green);
  color: var(--green-dark);
  background: var(--green-soft);
  opacity: 0.72;
  pointer-events: none;
}

.match-tile.is-shake {
  animation: shake 300ms ease;
  border-color: var(--red);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.conversation-scene {
  margin-bottom: 19px;
  padding: 15px;
  border: 1px solid var(--blue-100);
  border-radius: 18px;
  background: linear-gradient(145deg, var(--blue-50), #fff);
}

.conversation-scene small {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  line-height: 1.4;
}

.chat-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.chat-avatar {
  display: grid;
  place-items: center;
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  border-radius: 13px;
  color: #fff;
  background: var(--navy-800);
  font-size: 13px;
  font-weight: 1000;
}

.chat-bubble {
  padding: 11px 13px;
  border-radius: 5px 15px 15px 15px;
  color: var(--ink);
  background: #fff;
  box-shadow: var(--shadow-small);
  font-weight: 800;
  line-height: 1.4;
}

.type-answer {
  width: 100%;
  min-height: 62px;
  padding: 13px 15px;
  border: 2px solid var(--line-strong);
  border-bottom-width: 5px;
  border-radius: 16px;
  color: var(--ink);
  background: #fff;
  font-size: 17px;
  font-weight: 800;
}

.type-answer:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(63, 120, 234, 0.12);
  outline: none;
}

.lesson-footer {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 110;
  min-height: 108px;
  padding: 14px max(18px, env(safe-area-inset-right)) calc(14px + var(--safe-bottom)) max(18px, env(safe-area-inset-left));
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 -15px 40px rgba(21, 48, 104, 0.09);
  backdrop-filter: blur(18px);
}

.lesson-footer-inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  width: min(760px, 100%);
  min-height: 78px;
  margin: 0 auto;
}

.feedback-copy {
  display: none;
  flex: 1;
  min-width: 0;
}

.feedback-copy.is-visible {
  display: flex;
  align-items: flex-start;
  gap: 11px;
}

.feedback-icon {
  display: grid;
  place-items: center;
  flex: 0 0 43px;
  width: 43px;
  height: 43px;
  border-radius: 14px;
  color: #fff;
  background: var(--green);
  font-size: 20px;
  font-weight: 1000;
}

.feedback-copy.is-wrong .feedback-icon {
  background: var(--red);
}

.feedback-text strong,
.feedback-text span {
  display: block;
}

.feedback-text strong {
  margin-bottom: 3px;
  color: var(--green-dark);
}

.feedback-copy.is-wrong .feedback-text strong {
  color: var(--red-dark);
}

.feedback-text span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.lesson-action {
  min-width: 170px;
}

/* Completion */
.completion-screen {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 25%, rgba(255, 200, 61, 0.27), transparent 16rem),
    linear-gradient(145deg, var(--navy-950), var(--navy-800) 60%, #2459bb);
}

.completion-card {
  position: relative;
  z-index: 2;
  width: min(520px, 100%);
  padding: 26px;
  border-radius: 30px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.completion-card .kalo-wrap {
  width: 230px;
  height: 215px;
  margin: -37px auto -10px;
  transform: scale(0.82);
  transform-origin: center bottom;
}

.completion-card h1 {
  margin: 0 0 7px;
  font-size: 32px;
  letter-spacing: -1px;
}

.completion-card > p {
  margin: 0 auto 18px;
  color: var(--muted);
  line-height: 1.5;
}

.reward-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
  margin-bottom: 20px;
}

.reward-item {
  padding: 13px 8px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
}

.reward-item strong,
.reward-item span {
  display: block;
}

.reward-item strong {
  margin-bottom: 4px;
  font-size: 21px;
}

.reward-item span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.confetti-piece {
  position: fixed;
  top: -30px;
  z-index: 121;
  width: 11px;
  height: 17px;
  border-radius: 3px;
  animation: confettiFall 2.6s linear forwards;
  pointer-events: none;
}

@keyframes confettiFall {
  0% { transform: translate3d(0, -30px, 0) rotate(0deg); opacity: 1; }
  100% { transform: translate3d(var(--drift), 110vh, 0) rotate(720deg); opacity: 0.2; }
}

/* Loading and toasts */
.loading-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.loading-card {
  display: grid;
  justify-items: center;
  gap: 15px;
  color: var(--navy-800);
  font-weight: 900;
}

.loading-logo {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 24px;
  color: #fff;
  background: linear-gradient(145deg, var(--navy-800), var(--blue-500));
  box-shadow: var(--shadow-blue);
  font-size: 34px;
  font-weight: 1000;
  animation: pulse 1s ease-in-out infinite alternate;
}

@keyframes pulse {
  from { transform: scale(0.96); }
  to { transform: scale(1.04); }
}

#toast-root {
  position: fixed;
  right: 18px;
  bottom: calc(18px + var(--safe-bottom));
  z-index: 200;
  display: grid;
  gap: 9px;
  pointer-events: none;
}

.toast {
  min-width: min(340px, calc(100vw - 36px));
  max-width: 430px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 15px;
  color: var(--ink);
  background: #fff;
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 800;
  animation: toastIn 220ms ease both;
}

.toast.is-error {
  color: var(--red-dark);
  border-color: #f5c2ca;
  background: var(--red-soft);
}

.toast.is-success {
  color: var(--green-dark);
  border-color: #b9ead8;
  background: var(--green-soft);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.empty-state {
  padding: 32px;
  text-align: center;
}

.empty-state .empty-icon {
  margin-bottom: 10px;
  font-size: 44px;
}

.empty-state h3 {
  margin: 0 0 7px;
}

.empty-state p {
  margin: 0;
  color: var(--muted);
}

/* Responsive */

.school-identity{display:inline-flex;align-items:center;gap:10px;margin-top:14px;padding:8px 12px;border-radius:16px;background:rgba(255,255,255,.12);color:rgba(255,255,255,.92);font-size:12px;line-height:1.25;backdrop-filter:blur(8px)}
.school-identity img{width:52px;height:52px;object-fit:contain;border-radius:12px;background:#fff;padding:2px}
.school-identity strong{color:#fff}
@media (max-width: 1040px) {
  .auth-showcase {
    padding: 36px;
  }

  .auth-bear-stage {
    right: 12px;
    transform: scale(1.05);
  }

  .student-hero {
    padding-right: 285px;
  }

  .hero-kalo {
    right: 4px;
    transform: scale(0.92);
    transform-origin: bottom right;
  }

  .speech-bubble {
    right: 164px;
  }

  .teacher-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 880px) {
  .auth-page {
    grid-template-columns: 1fr;
  }

  .auth-showcase {
    display: none;
  }

  .auth-form-side {
    padding: 20px;
    background:
      radial-gradient(circle at 8% 0%, rgba(63, 120, 234, 0.13), transparent 22rem),
      var(--bg);
  }

  .auth-mobile-brand {
    display: flex;
  }

  .app-layout {
    grid-template-columns: 1fr;
  }

  .side-nav {
    display: none;
  }

  .app-main {
    padding-bottom: 76px;
  }

  .bottom-nav {
    position: fixed;
    right: 10px;
    bottom: calc(8px + var(--safe-bottom));
    left: 10px;
    z-index: 50;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: 4px;
    min-height: 66px;
    padding: 6px;
    border: 1px solid rgba(210, 220, 237, 0.9);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 18px 45px rgba(21, 48, 104, 0.16);
    backdrop-filter: blur(18px);
  }

  .bottom-nav .nav-button {
    display: grid;
    justify-items: center;
    gap: 2px;
    min-height: 53px;
    padding: 5px;
    font-size: 10px;
    text-align: center;
  }

  .bottom-nav .nav-icon {
    font-size: 20px;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .content-grid-2 {
    grid-template-columns: 1fr;
  }

  .unit-lessons {
    grid-template-columns: 1fr;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .teacher-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 9px 12px 28px;
  }

  .app-header {
    min-height: 61px;
    margin-bottom: 8px;
  }

  .app-brand {
    font-size: 18px;
  }

  .app-brand .brand-mark {
    width: 39px;
    height: 39px;
  }

  .header-stats {
    gap: 5px;
  }

  .stat-pill {
    min-height: 37px;
    padding: 7px 9px;
    font-size: 11px;
  }

  .header-sound {
    display: none;
  }

  .student-hero {
    display: block;
    min-height: 0;
    padding: 23px 20px 20px;
    border-radius: 25px;
  }

  .student-hero h1 {
    font-size: 32px;
  }

  .student-hero p {
    font-size: 14px;
  }

  .speech-bubble {
    position: relative;
    right: auto;
    top: auto;
    bottom: auto;
    width: min(260px, 86%);
    margin: 18px auto 0;
    transform: none;
    text-align: center;
  }

  .speech-bubble::after {
    right: 50%;
    bottom: -11px;
    transform: translateX(50%);
    border-width: 13px 11px 0;
    border-color: #fff transparent transparent;
  }

  .hero-kalo {
    position: relative;
    right: auto;
    bottom: auto;
    display: grid;
    place-items: start center;
    width: 100%;
    height: 203px;
    margin-top: 7px;
    transform: none;
    overflow: hidden;
  }

  .hero-kalo .kalo-wrap {
    transform: scale(0.78);
    transform-origin: top center;
  }

  .dashboard-grid {
    margin-top: 13px;
  }

  .card-padding,
  .current-path-card {
    padding: 16px;
  }

  .lesson-row {
    grid-template-columns: 49px minmax(0, 1fr) auto;
    gap: 10px;
  }

  .lesson-node {
    width: 47px;
    height: 47px;
  }

  .lesson-row .button {
    min-width: 0;
    padding: 10px;
  }

  .achievement-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .profile-hero {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .profile-hero > .button {
    grid-column: 1 / -1;
    width: 100%;
  }

  .exercise-card {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 20px 17px;
  }

  .exercise-kalo {
    display: none;
  }

  .lesson-body {
    padding-top: 8px;
  }

  .lesson-footer-inner {
    min-height: 77px;
  }

  .feedback-copy.is-visible {
    align-items: center;
  }

  .feedback-text span {
    display: none;
  }

  .lesson-action {
    min-width: 140px;
  }
}

@media (max-width: 500px) {
  .auth-form-side {
    padding: 12px;
  }

  .auth-panel {
    padding: 21px 17px;
    border-radius: 23px;
  }

  .auth-panel h2 {
    font-size: 27px;
  }

  .demo-buttons {
    grid-template-columns: 1fr;
  }

  .stat-pill.stat-gems {
    display: none;
  }

  .student-hero {
    padding-right: 17px;
    padding-left: 17px;
    padding-bottom: 17px;
  }

  .student-hero h1 {
    font-size: 30px;
    letter-spacing: -1.2px;
  }

  .hero-meta {
    gap: 8px 12px;
    font-size: 11px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .lesson-row-copy small {
    white-space: normal;
  }

  .lesson-row {
    align-items: start;
  }

  .path-lesson {
    grid-template-columns: 44px minmax(0, 1fr) auto;
  }

  .path-lesson-icon {
    width: 42px;
    height: 42px;
  }

  .unit-header {
    grid-template-columns: 50px minmax(0, 1fr) auto;
    padding: 15px;
  }

  .unit-icon {
    width: 48px;
    height: 48px;
    font-size: 23px;
  }

  .unit-lessons {
    padding: 0 13px 13px;
  }

  .metric-grid,
  .teacher-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .achievement-grid {
    grid-template-columns: 1fr;
  }

  .profile-avatar {
    width: 65px;
    height: 65px;
    font-size: 25px;
  }

  .profile-copy h1 {
    font-size: 23px;
  }

  .activity-chart {
    gap: 5px;
  }

  .lesson-topbar {
    grid-template-columns: 42px minmax(0, 1fr) auto;
    width: calc(100% - 18px);
    gap: 9px;
  }

  .lesson-topbar .icon-button {
    width: 41px;
    height: 41px;
  }

  .lesson-heart-count {
    min-width: 45px;
    font-size: 13px;
  }

  .lesson-body {
    width: calc(100% - 18px);
    padding-bottom: 118px;
  }

  .exercise-prompt {
    font-size: 25px;
  }

  .choice-button {
    min-height: 57px;
    padding: 10px 11px;
  }

  .match-grid {
    gap: 8px;
  }

  .match-tile {
    min-height: 49px;
    padding: 8px;
    font-size: 13px;
  }

  .lesson-footer {
    min-height: 97px;
    padding-top: 10px;
  }

  .lesson-footer-inner {
    min-height: 68px;
    gap: 8px;
  }

  .feedback-icon {
    flex-basis: 37px;
    width: 37px;
    height: 37px;
  }

  .lesson-action {
    min-width: 122px;
    padding: 12px 14px;
  }

  .completion-screen {
    padding: 13px;
  }

  .completion-card {
    padding: 21px 16px;
    border-radius: 24px;
  }

  .reward-grid {
    gap: 6px;
  }

  .reward-item {
    padding: 11px 5px;
  }

  .reward-item strong {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* Launch candidate: public enrollment, missions and school administration */
.form-notice {
  padding: 11px 13px;
  border: 1px solid #bde8d7;
  border-radius: 13px;
  color: var(--green-dark);
  background: var(--green-soft);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.45;
}

.form-two-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.text-button {
  justify-self: center;
  padding: 4px 7px;
  border: 0;
  color: var(--blue-600);
  background: transparent;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
}

.text-button:hover {
  text-decoration: underline;
}

.consent-row {
  display: grid;
  grid-template-columns: 21px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.48;
  cursor: pointer;
}

.consent-row input {
  width: 19px;
  height: 19px;
  margin: 1px 0 0;
  accent-color: var(--navy-800);
}

.private-code-details {
  padding: 11px 13px;
  border: 1px dashed var(--blue-200);
  border-radius: 14px;
  background: var(--blue-50);
}

.private-code-details summary {
  color: var(--navy-800);
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
}

.registration-closed {
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: var(--surface-soft);
  line-height: 1.5;
}

.registration-closed p {
  margin: 7px 0 0;
  color: var(--muted);
}

.auth-support {
  margin: 19px 0 0 !important;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.auth-support strong {
  color: var(--navy-800);
}

.assignment-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  padding: 15px 17px;
  border-color: #c8d9ff;
  background: linear-gradient(100deg, #fff, var(--blue-50));
}

.assignment-strip-copy {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 13px;
}

.assignment-strip-copy strong {
  display: block;
  line-height: 1.35;
}

.assignment-strip-copy p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.assignment-icon,
.assignment-status {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 43px;
  height: 43px;
  border-radius: 14px;
  color: var(--navy-800);
  background: var(--blue-100);
  font-size: 19px;
  font-weight: 1000;
}

.assignment-list {
  display: grid;
  gap: 10px;
}

.assignment-item {
  display: grid;
  grid-template-columns: 43px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: var(--surface-soft);
}

.assignment-item.is-complete {
  border-color: #bde8d7;
  background: var(--green-soft);
}

.assignment-item.is-complete .assignment-status {
  color: #fff;
  background: var(--green);
}

.assignment-copy {
  min-width: 0;
}

.assignment-copy strong,
.assignment-copy small {
  display: block;
}

.assignment-copy small {
  margin-top: 4px;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.assignment-copy .progress-track {
  margin-top: 9px;
}

.password-warning {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 18px;
  padding: 14px 16px;
  border: 1px solid #f1d979;
  border-radius: 17px;
  color: #725500;
  background: var(--yellow-soft);
  line-height: 1.45;
}

.password-warning p {
  margin: 4px 0 0;
  font-size: 13px;
}

.profile-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.profile-stats-grid > div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
}

.profile-stats-grid strong,
.profile-stats-grid span {
  display: block;
}

.profile-stats-grid strong {
  color: var(--navy-800);
  font-size: 24px;
}

.profile-stats-grid span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.teacher-hero-top,
.teacher-hero-actions,
.teacher-page-title,
.page-title-actions {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.teacher-hero-actions {
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: 18px;
}

.teacher-hero-actions .class-code {
  margin-top: 0;
  color: #fff;
  cursor: pointer;
}

.teacher-class-selector {
  display: grid;
  flex: 0 1 310px;
  gap: 6px;
  min-width: 220px;
  color: inherit;
  font-size: 11px;
  font-weight: 1000;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.teacher-class-selector select {
  width: 100%;
  min-height: 44px;
  padding: 9px 34px 9px 12px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--ink);
  background: #fff;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: none;
}

.teacher-hero .teacher-class-selector {
  color: #d6e3ff;
}

.teacher-hero .teacher-class-selector select {
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
}

.teacher-hero .teacher-class-selector option {
  color: var(--ink);
  background: #fff;
}

.teacher-page-title {
  margin: 3px 0 20px;
}

.teacher-page-title > div:first-child {
  min-width: 0;
}

.page-title-actions {
  align-items: end;
  flex: 0 1 480px;
}

.reset-alert-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 17px;
  padding: 15px 17px;
  border-color: #f0d782;
  background: var(--yellow-soft);
}

.reset-alert-card p {
  margin: 4px 0 0;
  color: #795e06;
  font-size: 13px;
}

.table-actions {
  display: flex;
  align-items: center;
  gap: 7px;
}

.button-tiny {
  min-height: 34px;
  padding: 7px 10px;
  border-radius: 11px;
  font-size: 11px;
}

.student-disabled {
  opacity: 0.62;
  background: #f8f9fb;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 180px;
  padding: 24px;
  border: 1px dashed var(--line-strong);
  border-radius: 18px;
  color: var(--muted);
  text-align: center;
  background: var(--surface-soft);
}

.empty-state > span {
  font-size: 31px;
}

.empty-state strong {
  margin-top: 7px;
  color: var(--ink);
}

.empty-state p {
  max-width: 440px;
  margin: 4px 0 0;
  font-size: 13px;
}

.teacher-tip {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  align-items: center;
  gap: 4px;
  min-height: 235px;
  padding: 12px;
  border-radius: 20px;
  color: var(--navy-800);
  background: linear-gradient(145deg, var(--blue-50), #fff);
}

.teacher-tip .kalo-wrap {
  width: 145px;
  height: 180px;
  transform: scale(0.72);
  transform-origin: center;
}

.teacher-tip p {
  margin: 0;
  font-size: 16px;
  font-weight: 850;
  line-height: 1.55;
}

.compact-form {
  gap: 12px;
}

@media (max-width: 900px) {
  .teacher-hero-top,
  .teacher-page-title,
  .page-title-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .teacher-class-selector,
  .page-title-actions {
    flex-basis: auto;
    width: 100%;
    min-width: 0;
  }

  .teacher-hero .teacher-class-selector {
    max-width: 100%;
  }
}

@media (max-width: 660px) {
  .form-two-columns,
  .profile-stats-grid {
    grid-template-columns: 1fr;
  }

  .assignment-strip,
  .reset-alert-card {
    align-items: stretch;
    flex-direction: column;
  }

  .assignment-strip > .button,
  .reset-alert-card > .button {
    width: 100%;
  }

  .assignment-item {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .assignment-item > :last-child {
    grid-column: 1 / -1;
    width: 100%;
  }

  .assignment-item > .badge:last-child {
    justify-self: start;
    width: auto;
  }

  .assignment-copy small {
    white-space: normal;
  }

  .teacher-tip {
    grid-template-columns: 1fr;
    justify-items: center;
    min-height: auto;
    text-align: center;
  }

  .teacher-tip .kalo-wrap {
    height: 150px;
  }

  .teacher-hero-actions .button,
  .teacher-hero-actions .class-code {
    width: 100%;
    justify-content: center;
  }
}

.consent-row a,
.auth-support a {
  color: var(--blue-600);
  font-weight: 900;
}

.student-hero .speech-bubble {
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.teacher-tip .kalo-wrap {
  overflow: visible;
}

.teacher-tip .kalo-bear {
  transform: scale(0.72);
  transform-origin: center;
}

/* Launch account controls */
.account-password-form {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

/* Keep Kalo's hero message crisp against the dark-blue panel. */
.student-hero .speech-bubble {
  color: var(--navy-900);
  background: #fff;
  box-shadow: 0 12px 30px rgba(0, 15, 55, 0.24);
  backdrop-filter: none;
}

.cohort-row-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

@media (max-width: 560px) {
  .cohort-row-actions {
    width: 100%;
    justify-content: flex-start;
  }
}

/* A1 completion certificate */
.certificate-progress-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin-top: 18px;
  padding: 24px;
  border: 1px solid #d9e3f3;
  border-radius: 24px;
  background: linear-gradient(135deg, #f7faff, #edf3ff);
  box-shadow: var(--shadow-sm);
}

.certificate-progress-card.is-unlocked {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #062766, #164db9 62%, #4a75dc);
  box-shadow: 0 22px 52px rgba(0, 35, 102, 0.24);
}

.certificate-progress-icon {
  display: grid;
  place-items: center;
  width: 68px;
  height: 68px;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(20, 47, 103, 0.15);
  font-size: 31px;
}

.certificate-progress-copy h2,
.certificate-progress-copy p {
  margin: 0;
}

.certificate-progress-copy h2 {
  margin: 3px 0 5px;
  font-size: 22px;
}

.certificate-progress-copy > p:last-of-type {
  margin-bottom: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.certificate-progress-card.is-unlocked .eyebrow,
.certificate-progress-card.is-unlocked .certificate-progress-copy > p:last-of-type {
  color: #dce7ff;
}

.certificate-lock {
  display: grid;
  place-items: center;
  min-width: 60px;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 14px;
  color: var(--blue-800);
  background: #fff;
  font-weight: 950;
}

.certificate-screen {
  min-height: 100vh;
  padding: 24px;
  background: #edf3ff;
}

.certificate-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  width: min(1120px, 100%);
  margin: 0 auto 18px;
}

.certificate-sheet {
  position: relative;
  isolation: isolate;
  width: min(1120px, 100%);
  min-height: 760px;
  margin: 0 auto;
  padding: clamp(34px, 6vw, 76px);
  overflow: hidden;
  border: 13px solid #fff;
  outline: 2px solid #1f55bd;
  outline-offset: -22px;
  border-radius: 20px;
  color: #14213d;
  background: #fffdf8;
  box-shadow: 0 30px 80px rgba(18, 45, 98, 0.22);
  text-align: center;
}

.certificate-sheet::before {
  content: "";
  position: absolute;
  inset: 20px;
  z-index: -1;
  border: 1px solid rgba(31, 85, 189, 0.25);
  pointer-events: none;
}

.certificate-corner {
  position: absolute;
  z-index: -1;
  width: 310px;
  height: 310px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 102, 214, 0.16), transparent 67%);
}

.certificate-corner-one { left: -130px; top: -130px; }
.certificate-corner-two { right: -130px; bottom: -130px; }

.certificate-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.certificate-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #002366;
  font-size: 20px;
  letter-spacing: 1px;
}

.certificate-level {
  padding: 9px 14px;
  border: 1px solid #bed0f4;
  border-radius: 999px;
  color: #12479d;
  background: #edf4ff;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 1.4px;
}

.certificate-medal {
  margin-top: 38px;
  font-size: 62px;
  filter: drop-shadow(0 10px 12px rgba(104, 78, 0, 0.16));
}

.certificate-kicker {
  margin: 8px 0 3px;
  color: #2864d7;
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 3px;
}

.certificate-sheet > h1 {
  margin: 0;
  color: #10214c;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 700;
  letter-spacing: -1.5px;
}

.certificate-awarded {
  margin: 28px 0 2px;
  color: #67748d;
  font-size: 16px;
}

.certificate-sheet > h2 {
  margin: 0;
  color: #002366;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(34px, 5vw, 58px);
  font-style: italic;
  font-weight: 700;
}

.certificate-name-line {
  width: min(520px, 80%);
  height: 2px;
  margin: 12px auto 20px;
  background: linear-gradient(90deg, transparent, #d3a837 15%, #d3a837 85%, transparent);
}

.certificate-description {
  max-width: 760px;
  margin: 0 auto;
  color: #4d5d7a;
  font-size: 17px;
  line-height: 1.7;
}

.certificate-details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 35px auto 30px;
}

.certificate-details > div {
  padding: 15px;
  border: 1px solid #dce5f5;
  border-radius: 15px;
  background: rgba(247, 250, 255, 0.8);
}

.certificate-details span,
.signature-line span {
  display: block;
  margin-bottom: 4px;
  color: #77859e;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.certificate-details strong {
  color: #17315f;
  font-size: 14px;
}

.certificate-footer {
  display: grid;
  grid-template-columns: 1fr 160px 1fr;
  align-items: end;
  gap: 26px;
  margin-top: 8px;
}

.signature-line {
  padding-top: 14px;
  border-top: 1px solid #8795af;
}

.signature-line strong {
  font-size: 13px;
}

.certificate-bear {
  height: 115px;
  overflow: hidden;
}

.certificate-bear .kalo-wrap {
  transform: scale(0.5);
  transform-origin: top center;
}

.certificate-note {
  margin: 22px auto 0;
  color: #8b95a8;
  font-size: 10px;
  line-height: 1.45;
}

@media (max-width: 720px) {
  .certificate-progress-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .certificate-progress-card .button,
  .certificate-lock {
    grid-column: 1 / -1;
    width: 100%;
  }

  .certificate-toolbar {
    flex-direction: column;
  }

  .certificate-toolbar .button {
    width: 100%;
  }

  .certificate-sheet {
    min-height: 0;
    padding: 38px 28px;
    border-width: 8px;
    outline-offset: -14px;
  }

  .certificate-header,
  .certificate-footer {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .certificate-header {
    flex-direction: column;
  }

  .certificate-details {
    grid-template-columns: 1fr;
  }

  .certificate-footer {
    gap: 18px;
  }

  .signature-line {
    width: 100%;
  }

  .certificate-bear {
    order: -1;
  }
}

@media print {
  @page { size: landscape; margin: 0; }
  body { background: #fff !important; }
  .no-print { display: none !important; }
  .certificate-screen { min-height: 0; padding: 0; background: #fff; }
  .certificate-sheet {
    width: 100%;
    min-height: 100vh;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    break-inside: avoid;
  }
}