:root {
  --bg-cream: #FFFDF8;
  --ink-900: #111827;
  --ink-700: #334155;
  --ink-500: #64748B;
  --glass-surface: rgba(255, 255, 255, 0.78);
  --glass-border: rgba(255, 255, 255, 0.92);
  --font-display: 'Fredoka', 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--bg-cream);
  color: var(--ink-900);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.hidden {
  display: none !important;
}

/* Soft Ambient Pastel Background */
.ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(85px);
  opacity: 0.42;
}
.blob-warm {
  width: 520px;
  height: 520px;
  background: #FDE68A;
  top: -140px;
  left: -100px;
}
.blob-mint {
  width: 480px;
  height: 480px;
  background: #A7F3D0;
  bottom: -140px;
  right: -80px;
}
.blob-lavender {
  width: 420px;
  height: 420px;
  background: #DDD6FE;
  top: 32%;
  left: 44%;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast-pill {
  background: #1E293B;
  color: #FFFFFF;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.25);
}

/* ========================================================================= */
/* FLOATING CLASSROOM TIMER PILL (MOCKUP 2 EXACT MATCH)                      */
/* ========================================================================= */
.floating-timer-pill {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1200;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px 12px 24px;
  border-radius: 28px;
  background: rgba(255, 253, 249, 0.94);
  backdrop-filter: blur(22px);
  border: 2px solid rgba(255, 255, 255, 0.96);
  box-shadow:
    inset 0 3px 6px rgba(255, 255, 255, 0.9),
    0 20px 38px -10px rgba(15, 23, 42, 0.16);
}
.ft-meta {
  display: flex;
  flex-direction: column;
}
.ft-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-500);
  letter-spacing: 0.01em;
}
.ft-digits {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.05;
  color: #1E293B;
}
.clay-circle-coral {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  border: none;
  cursor: pointer;
  color: #FFF;
  font-size: 1.15rem;
  font-weight: 800;
  background: linear-gradient(180deg, #FF7B5C 0%, #EE5335 100%);
  box-shadow:
    inset 0 3px 5px rgba(255, 255, 255, 0.55),
    0 5px 0 #C23B21,
    0 10px 18px rgba(238, 83, 53, 0.34);
  transition: transform 0.18s var(--spring);
}
.clay-circle-coral:active {
  transform: translateY(3px);
}
.ft-mini-chip {
  height: 40px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1.5px solid #E2E8F0;
  background: #FFFFFF;
  font-weight: 700;
  cursor: pointer;
}
.ft-close {
  border: none;
  background: transparent;
  font-size: 1rem;
  color: var(--ink-500);
  cursor: pointer;
  padding: 6px;
}

/* ========================================================================= */
/* AUTHENTICATION & LEARNER JOIN GATEWAY                                     */
/* ========================================================================= */
.auth-screen {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.clay-panel {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(24px);
  border: 2px solid #FFFFFF;
  border-radius: 34px;
  box-shadow:
    inset 0 4px 8px rgba(255, 255, 255, 0.9),
    0 28px 60px -15px rgba(30, 41, 59, 0.14);
}
.auth-card {
  width: 100%;
  max-width: 540px;
  padding: 34px;
}
.auth-brand-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}
.brand-badge-3d {
  width: 64px;
  height: 64px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  font-size: 2rem;
  background: linear-gradient(145deg, #FF8762, #F45B3B);
  box-shadow:
    inset 0 4px 6px rgba(255, 255, 255, 0.6),
    0 12px 24px rgba(244, 91, 59, 0.3);
}
.eyebrow-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #EA580C;
}
.auth-title {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 2px 0;
}
.auth-subtitle {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-500);
}
.auth-mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  background: #F1F5F9;
  padding: 6px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.auth-tab {
  min-height: 48px;
  border: none;
  border-radius: 15px;
  background: transparent;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--ink-700);
  cursor: pointer;
  transition: all 0.2s var(--spring);
}
.auth-tab.active {
  background: #FFFFFF;
  color: #0F172A;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.09);
}
.field-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-700);
  margin: 12px 0 6px;
}
.clay-input, .clay-select, .clay-textarea {
  width: 100%;
  min-height: 52px;
  padding: 12px 16px;
  border-radius: 18px;
  border: 2px solid #E2E8F0;
  background: #FFFFFF;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-900);
  box-shadow: inset 0 2px 5px rgba(15, 23, 42, 0.04);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.clay-textarea {
  min-height: 92px;
  resize: vertical;
}
.clay-input:focus, .clay-select:focus, .clay-textarea:focus {
  outline: none;
  border-color: #FF7A59;
  box-shadow: 0 0 0 4px rgba(255, 122, 89, 0.18);
}
.code-input-big {
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.pin-input-big {
  text-align: center;
  font-size: 1.5rem;
  letter-spacing: 0.35em;
}
.demo-code-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ECFDF5;
  border: 1.5px solid #A7F3D0;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 0.86rem;
  font-weight: 700;
  color: #065F46;
}
.two-col-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Chunky 3D Tactile Buttons */
.btn-3d-coral, .btn-3d-emerald, .btn-3d-sky {
  min-height: 56px;
  padding: 14px 26px;
  border: none;
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  color: #FFFFFF;
  cursor: pointer;
  transition: transform 0.18s var(--spring), filter 0.18s ease;
}
.btn-3d-coral {
  background: linear-gradient(180deg, #FF8364 0%, #F25C3D 100%);
  box-shadow:
    inset 0 3px 5px rgba(255, 255, 255, 0.55),
    0 6px 0 #C84024,
    0 14px 24px rgba(242, 92, 61, 0.32);
}
.btn-3d-emerald {
  background: linear-gradient(180deg, #34D399 0%, #059669 100%);
  box-shadow:
    inset 0 3px 5px rgba(255, 255, 255, 0.5),
    0 6px 0 #047857,
    0 14px 24px rgba(16, 185, 129, 0.28);
}
.btn-3d-sky {
  background: linear-gradient(180deg, #60A5FA 0%, #2563EB 100%);
  box-shadow:
    inset 0 3px 5px rgba(255, 255, 255, 0.5),
    0 6px 0 #1D4ED8,
    0 14px 24px rgba(37, 99, 235, 0.26);
}
.btn-3d-coral:active, .btn-3d-emerald:active, .btn-3d-sky:active {
  transform: translateY(4px);
}
.btn-full {
  width: 100%;
  margin-top: 18px;
}

/* ========================================================================= */
/* MAIN TABLET SHELL & FROSTED DOCK (MOCKUP 1 EXACT MATCH)                   */
/* ========================================================================= */
.app-shell {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 24px;
  max-width: 1480px;
  margin: 0 auto;
  padding: 22px 28px 40px 22px;
  min-height: 100vh;
}

.frosted-dock {
  position: sticky;
  top: 22px;
  align-self: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 18px 10px;
  border-radius: 46px;
  background: rgba(248, 250, 252, 0.82);
  backdrop-filter: blur(22px);
  border: 2px solid rgba(255, 255, 255, 0.95);
  box-shadow:
    inset 0 4px 10px rgba(255, 255, 255, 0.95),
    0 22px 44px -12px rgba(15, 23, 42, 0.12);
}

.dock-item {
  width: 92px;
  min-height: 76px;
  padding: 8px 4px;
  border: none;
  border-radius: 26px;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: transform 0.22s var(--spring), background 0.2s ease;
}
.dock-item:hover {
  transform: scale(1.06);
}
.dock-item.active {
  background: #FFFFFF;
  box-shadow: 0 10px 20px -6px rgba(15, 23, 42, 0.12);
}
.dock-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.45rem;
  box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.8), 0 6px 12px rgba(15, 23, 42, 0.08);
}
.dock-svg {
  width: 38px;
  height: 38px;
}
.dock-label {
  font-size: 0.73rem;
  font-weight: 700;
  color: #1E293B;
  text-align: center;
  line-height: 1.1;
}

/* Header Bar */
.top-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 22px;
}
.mini-brand-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}
.brand-title-small {
  font-weight: 800;
  font-size: 0.95rem;
  color: #0F172A;
}
.role-pill {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 999px;
  background: #FFEDD5;
  color: #C2410C;
  letter-spacing: 0.05em;
}
.r2-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: #E0F2FE;
  color: #0369A1;
}
.greeting-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 2.8vw, 2.55rem);
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.search-pill-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 52px;
  padding: 0 18px;
  min-width: 270px;
  border-radius: 999px;
  background: #FFFFFF;
  border: 2px solid #F1F5F9;
  box-shadow:
    inset 0 2px 4px rgba(15, 23, 42, 0.03),
    0 8px 20px -6px rgba(15, 23, 42, 0.08);
}
.search-pill-wrap input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--ink-900);
}
.status-pill-emerald {
  height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.95rem;
  color: #FFFFFF;
  background: linear-gradient(180deg, #10B981 0%, #059669 100%);
  box-shadow:
    inset 0 3px 5px rgba(255, 255, 255, 0.45),
    0 10px 20px -5px rgba(5, 150, 105, 0.38);
}
.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #A7F3D0;
  box-shadow: 0 0 0 4px rgba(167, 243, 208, 0.3);
}
.pill-btn-soft, .pill-btn-mini {
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1.5px solid #E2E8F0;
  background: #FFFFFF;
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--ink-700);
  cursor: pointer;
}
.pill-btn-mini {
  min-height: 36px;
  padding: 0 13px;
  font-size: 0.8rem;
}

.announcement-bar {
  margin-bottom: 18px;
  padding: 12px 20px;
  border-radius: 20px;
  background: linear-gradient(90deg, #FEF3C7, #FFEDD5);
  border: 1.5px solid #FDE68A;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.92rem;
  font-weight: 600;
}

/* ========================================================================= */
/* 3D CLAYMORPHISM CARDS & BENTO GRID (MOCKUP 1 PIXEL-PERFECT)               */
/* ========================================================================= */
.hero-bento-grid {
  display: grid;
  grid-template-columns: 1.18fr 1fr 1fr;
  grid-template-rows: 248px 248px;
  gap: 22px;
}

.clay-card {
  position: relative;
  border-radius: 32px;
  padding: 26px;
  cursor: pointer;
  overflow: hidden;
  user-select: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s var(--spring), box-shadow 0.25s ease;
}
.clay-card:hover {
  transform: translateY(-5px) scale(1.012);
}
.clay-card:active {
  transform: translateY(3px) scale(0.99);
}

.hero-lesson-card {
  grid-row: 1 / span 2;
  padding: 32px;
}

.clay-coral {
  background: linear-gradient(165deg, #FF8A65 0%, #F46B45 100%);
  box-shadow:
    inset 0 6px 10px rgba(255, 255, 255, 0.52),
    inset 0 -8px 14px rgba(180, 52, 20, 0.24),
    0 20px 36px -10px rgba(244, 107, 69, 0.42);
}
.clay-sky {
  background: linear-gradient(165deg, #93C9FF 0%, #63AEFA 100%);
  box-shadow:
    inset 0 6px 10px rgba(255, 255, 255, 0.62),
    inset 0 -8px 14px rgba(29, 78, 216, 0.18),
    0 18px 32px -10px rgba(99, 174, 250, 0.38);
}
.clay-mint {
  background: linear-gradient(165deg, #98F0CA 0%, #68DAA8 100%);
  box-shadow:
    inset 0 6px 10px rgba(255, 255, 255, 0.65),
    inset 0 -8px 14px rgba(4, 120, 87, 0.18),
    0 18px 32px -10px rgba(104, 218, 168, 0.36);
}
.clay-amber {
  background: linear-gradient(165deg, #FFE678 0%, #F9CE45 100%);
  box-shadow:
    inset 0 6px 10px rgba(255, 255, 255, 0.7),
    inset 0 -8px 14px rgba(180, 83, 9, 0.16),
    0 18px 32px -10px rgba(249, 206, 69, 0.38);
}
.clay-lavender {
  background: linear-gradient(165deg, #A5A8FF 0%, #8388F8 100%);
  box-shadow:
    inset 0 6px 10px rgba(255, 255, 255, 0.58),
    inset 0 -8px 14px rgba(67, 56, 202, 0.22),
    0 18px 32px -10px rgba(131, 136, 248, 0.38);
}
.clay-pink {
  background: linear-gradient(165deg, #FFB3D1 0%, #F472B6 100%);
  box-shadow: inset 0 5px 8px rgba(255,255,255,0.6), inset 0 -6px 12px rgba(157,23,77,0.18), 0 14px 28px -8px rgba(244,114,182,0.34);
}
.clay-orange {
  background: linear-gradient(165deg, #FFC078 0%, #FB923C 100%);
  box-shadow: inset 0 5px 8px rgba(255,255,255,0.6), inset 0 -6px 12px rgba(154,52,18,0.18), 0 14px 28px -8px rgba(251,146,60,0.34);
}
.clay-cyan {
  background: linear-gradient(165deg, #80EEFF 0%, #22D3EE 100%);
  box-shadow: inset 0 5px 8px rgba(255,255,255,0.65), inset 0 -6px 12px rgba(14,116,144,0.18), 0 14px 28px -8px rgba(34,211,238,0.34);
}
.clay-plum {
  background: linear-gradient(165deg, #D8B4FE 0%, #A855F7 100%);
  box-shadow: inset 0 5px 8px rgba(255,255,255,0.58), inset 0 -6px 12px rgba(107,33,168,0.22), 0 14px 28px -8px rgba(168,85,247,0.32);
}

.card-chip-light {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
  color: #FFF7ED;
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.hero-embossed-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 3.6vw, 3.35rem);
  line-height: 1.03;
  margin: 0;
  color: #FFD4C2;
  text-shadow:
    0 3px 0 rgba(168, 45, 16, 0.35),
    0 8px 18px rgba(124, 45, 18, 0.25);
}
.hero-illustration {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  margin-top: auto;
}
.art-svg-hero {
  width: 100%;
  max-width: 280px;
  height: auto;
  filter: drop-shadow(0 16px 22px rgba(124, 45, 18, 0.28));
}

.tile-title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.12;
  margin: 0;
  color: #0F172A;
}
.tile-sub {
  display: inline-block;
  margin-top: 5px;
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(15, 23, 42, 0.68);
}
.tile-art {
  position: absolute;
  right: 12px;
  bottom: 8px;
  width: 122px;
  height: 122px;
  pointer-events: none;
}
.art-svg-tile {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 10px 14px rgba(15, 23, 42, 0.16));
}

/* Second Feature Row */
.section-divider-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 14px;
}
.section-h2 {
  font-family: var(--font-display);
  font-size: 1.42rem;
  margin: 0;
}
.section-pill {
  padding: 5px 14px;
  border-radius: 999px;
  background: #FEF3C7;
  color: #92400E;
  font-size: 0.8rem;
  font-weight: 800;
}
.extra-clay-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.mini-clay-card {
  flex-direction: row;
  align-items: center;
  gap: 14px;
  padding: 20px;
  border-radius: 26px;
}
.mini-emoji-3d {
  width: 58px;
  height: 58px;
  flex-shrink: 0;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.55);
  display: grid;
  place-items: center;
  font-size: 1.85rem;
  box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.8);
}
.mini-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 4px;
  color: #0F172A;
}
.mini-card-desc {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(15, 23, 42, 0.75);
  line-height: 1.3;
}

/* ========================================================================= */
/* SPLIT-SCREEN WORKSPACE (MOCKUP 2 PIXEL-PERFECT)                           */
/* ========================================================================= */
.workspace-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 14px;
}
.ws-left-head {
  display: flex;
  align-items: center;
  gap: 14px;
}
.clay-back-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1.5px solid #FFFFFF;
  background: #FFFDF9;
  font-size: 1.65rem;
  font-weight: 700;
  color: #0F172A;
  cursor: pointer;
  box-shadow:
    inset 0 2px 4px rgba(255, 255, 255, 0.9),
    0 8px 18px rgba(15, 23, 42, 0.1);
  transition: transform 0.18s var(--spring);
}
.clay-back-circle:hover {
  transform: scale(1.07);
}
.ws-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin: 0;
}
.ws-sub {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink-500);
}
.ws-action-pills {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.clay-white-pill {
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1.5px solid #FFFFFF;
  background: #FAF8F5;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  color: #0F172A;
  cursor: pointer;
  box-shadow:
    inset 0 2px 4px rgba(255, 255, 255, 0.95),
    0 6px 14px rgba(15, 23, 42, 0.08);
  transition: transform 0.18s var(--spring);
}
.clay-white-pill:hover {
  transform: translateY(-2px);
}
.pill-accent-play {
  background: linear-gradient(180deg, #FEF08A, #FDE047);
  color: #78350F;
}
.pill-accent-pub {
  background: linear-gradient(180deg, #E0F2FE, #BAE6FD);
  color: #0369A1;
}

.tool-switcher-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: 10px;
}
.tool-chip {
  min-height: 46px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1.5px solid #E2E8F0;
  background: rgba(255, 255, 255, 0.75);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.86rem;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.18s var(--spring);
}
.tool-chip.active {
  background: #1E293B;
  color: #FFFFFF;
  border-color: #1E293B;
}

.workspace-split {
  display: grid;
  grid-template-columns: 1fr 1.12fr;
  gap: 28px;
  align-items: start;
}
.clay-soft-panel {
  background: rgba(253, 250, 244, 0.92);
  border: 2px solid #FFFFFF;
  border-radius: 30px;
  padding: 26px;
  box-shadow:
    inset 0 4px 8px rgba(255, 255, 255, 0.95),
    0 20px 40px -14px rgba(15, 23, 42, 0.11);
}
.control-group {
  margin-bottom: 18px;
}
.control-label {
  display: block;
  font-weight: 800;
  font-size: 0.94rem;
  color: #0F172A;
  margin-bottom: 10px;
}
.chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip-btn {
  min-height: 46px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1.5px solid #E2E8F0;
  background: #FAF8F5;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.86rem;
  color: #1E293B;
  cursor: pointer;
  transition: all 0.18s var(--spring);
}
.chip-btn:hover {
  transform: translateY(-2px);
}
.chip-btn.active {
  border-color: transparent;
  color: #FFFFFF;
  background: linear-gradient(180deg, #FF8163 0%, #F25B3C 100%);
  box-shadow:
    inset 0 2px 4px rgba(255, 255, 255, 0.5),
    0 8px 16px rgba(242, 91, 60, 0.34);
}
.chip-btn.subject-active {
  border: 2px solid #0F172A;
  background: #FFFFFF;
  color: #0F172A;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
}
.two-col-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.btn-generate-big {
  width: 100%;
  min-height: 62px;
  font-size: 1.18rem;
}

/* Stacked Paper Preview (Mockup 2 Exact Match) */
.ws-preview-stack {
  position: relative;
  padding-top: 6px;
}
.paper-back-sheet {
  position: absolute;
  inset: 14px -6px -8px 12px;
  background: #F1F5F9;
  border-radius: 28px;
  transform: rotate(1.4deg);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}
.paper-front-sheet {
  position: relative;
  background: #FFFFFF;
  border-radius: 28px;
  padding: 32px;
  min-height: 540px;
  box-shadow: 0 24px 48px -12px rgba(15, 23, 42, 0.14);
}
.provider-mini-badge {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  background: #F1F5F9;
  color: #475569;
  margin-bottom: 12px;
}

/* Preview Markdown + Colorful Pill Badges */
.preview-h1 {
  font-family: var(--font-display);
  font-size: 1.72rem;
  line-height: 1.2;
  margin: 0 0 14px;
  color: #0F172A;
}
.preview-h2 {
  font-size: 1.08rem;
  font-weight: 800;
  color: #1E293B;
  margin: 18px 0 8px;
}
.preview-p, .preview-numbered {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #334155;
  margin: 6px 0;
}
.preview-list {
  margin: 8px 0 14px 20px;
  padding: 0;
}
.preview-list li {
  font-size: 0.94rem;
  line-height: 1.55;
  color: #334155;
  margin-bottom: 5px;
}

.lesson-badge-row {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 7px 16px 7px 8px;
  border-radius: 999px;
  margin: 16px 0 8px;
  font-weight: 800;
  font-size: 0.88rem;
}
.badge-time {
  padding: 4px 11px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.8rem;
}
.badge-amber { background: #FDE68A; color: #78350F; }
.badge-amber .badge-time { background: #F59E0B; color: #FFFFFF; }
.badge-cyan { background: #67E8F9; color: #164E63; }
.badge-cyan .badge-time { background: #0891B2; color: #FFFFFF; }
.badge-emerald { background: #A7F3D0; color: #064E3B; }
.badge-emerald .badge-time { background: #10B981; color: #FFFFFF; }
.badge-purple { background: #DDD6FE; color: #4C1D95; }
.badge-purple .badge-time { background: #7C3AED; color: #FFFFFF; }
.badge-coral { background: #FECACA; color: #7F1D1D; }
.badge-coral .badge-time { background: #EF4444; color: #FFFFFF; }

/* ========================================================================= */
/* LIVE CLASSROOM TOOLKIT, REFERENCE, LIBRARY, LEARNER & ADMIN VIEWS         */
/* ========================================================================= */
.view-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}
.muted-sub {
  margin: 4px 0 0;
  color: var(--ink-500);
  font-size: 0.92rem;
}
.live-grid, .reference-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.full-span-card {
  grid-column: 1 / -1;
}
.card-h3 {
  font-family: var(--font-display);
  font-size: 1.28rem;
  margin: 0 0 12px;
}
.giant-timer-digits {
  font-family: var(--font-display);
  font-size: 4.4rem;
  font-weight: 700;
  text-align: center;
  padding: 18px;
  border-radius: 24px;
  background: #FFFFFF;
  color: #0F172A;
  margin-bottom: 14px;
  box-shadow: inset 0 3px 8px rgba(15, 23, 42, 0.06);
}
.timer-presets, .timer-controls-row, .picker-actions, .team-maker-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.picker-spotlight {
  min-height: 82px;
  border-radius: 22px;
  background: linear-gradient(135deg, #FEF3C7, #FDE68A);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: #92400E;
  margin-bottom: 12px;
  padding: 12px;
  text-align: center;
}
.teams-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-top: 10px;
}
.team-box {
  background: #FFFFFF;
  border-radius: 18px;
  padding: 12px;
  border: 1.5px solid #E2E8F0;
}
.voice-levels-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.voice-card {
  min-height: 118px;
  border-radius: 24px;
  border: 2px solid #E2E8F0;
  background: #FFFFFF;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s var(--spring);
}
.voice-card .v-emoji { font-size: 2rem; }
.voice-card.active {
  border-color: #10B981;
  background: #ECFDF5;
  transform: scale(1.03);
  box-shadow: 0 12px 24px rgba(16, 185, 129, 0.2);
}

/* Classrooms, Reference & Library Cards */
.classes-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 22px;
  align-items: start;
}
.classes-cards-grid, .library-cards-grid, .learner-items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 16px;
}
.item-clay-tile {
  background: #FFFFFF;
  border-radius: 24px;
  padding: 20px;
  border: 2px solid #F1F5F9;
  box-shadow: 0 12px 24px -8px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
}
.join-code-pill {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.14em;
  padding: 6px 14px;
  border-radius: 14px;
  background: #FEF3C7;
  color: #B45309;
  font-weight: 700;
}
.ref-filters, .calc-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}
.competency-list {
  max-height: 460px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.comp-item {
  background: #FFFFFF;
  border-radius: 18px;
  padding: 14px;
  border: 1.5px solid #E2E8F0;
}
.calc-result-card {
  margin-top: 14px;
  padding: 18px;
  border-radius: 22px;
  background: #ECFDF5;
  border: 2px solid #6EE7B7;
  text-align: center;
}

/* Admin Stats & Users */
.admin-stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.stat-tile {
  background: #FFFFFF;
  border-radius: 22px;
  padding: 18px;
  box-shadow: 0 10px 22px -8px rgba(15, 23, 42, 0.08);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
}
.admin-users-list, .leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.user-row-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 18px;
  background: #FFFFFF;
  border: 1.5px solid #E2E8F0;
}
.soft-hr {
  border: none;
  border-top: 1.5px dashed #CBD5E1;
  margin: 18px 0;
}

/* ========================================================================= */
/* INTERACTIVE PLAY ARENA MODAL (3D FLASHCARDS, GAMES, TRIVIA)               */
/* ========================================================================= */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(15, 23, 42, 0.52);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-card {
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 28px;
}
.modal-arena-xl {
  max-width: 920px;
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

/* 3D Flashcard Flip */
.flashcard-scene {
  perspective: 1100px;
  width: 100%;
  max-width: 520px;
  height: 290px;
  margin: 14px auto;
  cursor: pointer;
}
.flashcard-3d {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.55s var(--spring);
}
.flashcard-3d.is-flipped {
  transform: rotateY(180deg);
}
.fc-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 30px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.fc-front {
  background: linear-gradient(155deg, #93C9FF, #60A5FA);
  color: #0F172A;
  box-shadow: inset 0 5px 10px rgba(255,255,255,0.7), 0 18px 34px rgba(59,130,246,0.28);
}
.fc-back {
  transform: rotateY(180deg);
  background: linear-gradient(155deg, #98F0CA, #34D399);
  color: #064E3B;
  box-shadow: inset 0 5px 10px rgba(255,255,255,0.7), 0 18px 34px rgba(16,185,129,0.28);
}

/* Memory Match Grid */
.memory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 14px;
}
.mem-tile {
  min-height: 92px;
  border-radius: 22px;
  border: none;
  padding: 10px;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
  background: linear-gradient(160deg, #A5A8FF, #7C82F7);
  color: #FFFFFF;
  box-shadow: inset 0 3px 6px rgba(255,255,255,0.5), 0 6px 0 #4F46E5;
  transition: transform 0.2s var(--spring);
}
.mem-tile.revealed {
  background: #FEF3C7;
  color: #78350F;
  box-shadow: 0 4px 0 #D97706;
}
.mem-tile.matched {
  background: #A7F3D0;
  color: #065F46;
  box-shadow: 0 4px 0 #059669;
}

/* Quiz / Trivia Options */
.trivia-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}
.trivia-opt-btn {
  min-height: 64px;
  padding: 14px 18px;
  border-radius: 20px;
  border: 2px solid #E2E8F0;
  background: #FFFFFF;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
  transition: transform 0.18s var(--spring);
}
.trivia-opt-btn.correct { background: #DCFCE7; border-color: #16A34A; color: #14532D; }
.trivia-opt-btn.wrong { background: #FEE2E2; border-color: #DC2626; color: #7F1D1D; }

/* ========================================================================= */
/* TABLET PORTRAIT & MOBILE RESPONSIVE BREAKPOINTS                           */
/* ========================================================================= */
@media (max-width: 1120px) {
  .hero-bento-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }
  .hero-lesson-card {
    grid-column: 1 / -1;
    grid-row: auto;
    min-height: 290px;
  }
  .extra-clay-grid {
    grid-template-columns: 1fr 1fr;
  }
  .workspace-split, .live-grid, .reference-split, .classes-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
    padding: 16px 16px 110px;
  }
  .frosted-dock {
    position: fixed;
    top: auto;
    bottom: 12px;
    left: 12px;
    right: 12px;
    z-index: 1000;
    flex-direction: row;
    justify-content: space-around;
    overflow-x: auto;
    padding: 8px 12px;
    border-radius: 30px;
  }
  .dock-item {
    width: auto;
    min-width: 68px;
    min-height: 62px;
  }
  .voice-levels-grid, .admin-stats-strip {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .hero-bento-grid, .extra-clay-grid, .trivia-options-grid, .memory-grid, .two-col-inputs, .two-col-controls {
    grid-template-columns: 1fr;
  }
}

/* ========================================================================= */
/* CLEAN CLASSROOM HANDOUT PRINT STYLESHEET (@media print)                   */
/* ========================================================================= */
@media print {
  body {
    background: #FFFFFF !important;
  }
  .ambient-bg,
  .frosted-dock,
  .top-header,
  .floating-timer-pill,
  .workspace-topbar,
  .tool-switcher-strip,
  .ws-controls-card,
  .paper-back-sheet,
  .announcement-bar,
  .modal-backdrop {
    display: none !important;
  }
  .app-shell, .workspace-split {
    display: block !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .paper-front-sheet {
    box-shadow: none !important;
    padding: 0 !important;
  }
}