/* SnapCurio — AI Discovery Product */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800;900&display=swap');

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background: #ffffff;
  color: #0F0F2D;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display:block; max-width:100%; }
a { color:#5B4FE9; text-decoration:none; }

/* ══ NAV ══ */
nav {
  position: sticky; top:0; z-index:200;
  display: flex; align-items:center; justify-content:space-between;
  padding: 0 60px; height:70px;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid #E8E8F2;
}
.nav-logo {
  display:flex; align-items:center;
  font-size:20px; font-weight:800; color:#0F0F2D;
  letter-spacing:-.5px; text-decoration:none;
}
.nav-logo img { width:34px; height:34px; border-radius:10px; margin-right:10px; }
.nav-logo span { color:#5B4FE9; }
.nav-links { display:flex; gap:28px; }
.nav-links a { font-size:14px; font-weight:600; color:#6B7280; transition:color .15s; text-decoration:none; }
.nav-links a:hover { color:#0F0F2D; }
.nav-cta {
  background:#5B4FE9; color:#fff;
  padding:10px 22px; border-radius:999px;
  font-size:14px; font-weight:700;
  box-shadow:0 4px 20px rgba(91,79,233,.35);
  transition:all .15s; text-decoration:none;
}
.nav-cta:hover { background:#3D31C8; transform:translateY(-1px); }

/* ══ HERO ══ */
.hero {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
  min-height: calc(100vh - 70px);
  padding: 60px 60px 60px 80px;
  background: #ffffff;
  overflow: hidden;
  gap: 40px;
}

.hero-left { position:relative; z-index:2; }

.hero-eyebrow {
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:700; color:#5B4FE9; margin-bottom:24px;
}
.hero-eyebrow::before {
  content:''; display:inline-block;
  width:8px; height:8px; background:#5B4FE9; border-radius:50%;
}

.hero h1 {
  font-size: clamp(44px, 5.5vw, 76px);
  font-weight:900; letter-spacing:-3px; line-height:1.02;
  margin-bottom:10px; color:#0F0F2D;
}
.hero h1 .grad {
  background: linear-gradient(135deg, #5B4FE9 0%, #8B7CF6 100%);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-tagline {
  font-size: clamp(18px, 2.2vw, 28px);
  font-weight:800; letter-spacing:-1px; line-height:1.25;
  color:#0F0F2D; margin-bottom:6px;
}
.hero-tagline .grad {
  background: linear-gradient(135deg, #5B4FE9 0%, #8B7CF6 100%);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-desc {
  font-size:16px; color:#6B7280; line-height:1.75;
  max-width:460px; margin:20px 0 36px;
}
.hero-btns { display:flex; gap:14px; align-items:center; flex-wrap:wrap; }

.btn-primary {
  display:inline-flex; align-items:center; gap:8px;
  background:#5B4FE9; color:#fff;
  padding:14px 28px; border-radius:999px;
  font-size:15px; font-weight:700;
  box-shadow:0 6px 24px rgba(91,79,233,.4);
  transition:all .2s; text-decoration:none;
}
.btn-primary:hover { background:#3D31C8; transform:translateY(-2px); color:#fff; }

.btn-ghost {
  display:inline-flex; align-items:center; gap:10px;
  background:transparent; color:#0F0F2D;
  padding:14px 24px; border-radius:999px;
  font-size:15px; font-weight:700;
  transition:all .2s; text-decoration:none;
}
.btn-ghost:hover { background:#F8F7FF; color:#5B4FE9; }

.play-circle {
  width:32px; height:32px; border-radius:50%;
  background:#0F0F2D; display:inline-flex;
  align-items:center; justify-content:center; flex-shrink:0;
}
.play-circle::after {
  content:''; border-style:solid;
  border-width:6px 0 6px 10px;
  border-color:transparent transparent transparent #fff;
  margin-left:2px;
}

/* ══ HERO VISUAL — fixed-size stage ══ */
.hero-visual {
  display:flex; align-items:center; justify-content:center;
}

.v-stage {
  width: 500px;
  height: 500px;
  position: relative;
  flex-shrink: 0;
}

/* SVG orbital lines behind everything */
.v-stage svg.v-lines {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* camera center piece */
.v-camera {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
}
.v-camera-inner {
  width: 100px; height: 100px; border-radius: 28px;
  background: linear-gradient(145deg, #7C6FF5, #5B4FE9);
  display: flex; align-items: center; justify-content: center;
  font-size: 52px; line-height: 1;
  box-shadow: 0 20px 60px rgba(91,79,233,.45), 0 0 0 12px rgba(91,79,233,.08);
  animation: cam-pulse 2.5s ease-in-out infinite;
}
@keyframes cam-pulse {
  0%,100% { box-shadow:0 20px 60px rgba(91,79,233,.45), 0 0 0 12px rgba(91,79,233,.08); }
  50%      { box-shadow:0 20px 60px rgba(91,79,233,.5),  0 0 0 22px rgba(91,79,233,.03); }
}

/* floating object nodes */
.v-obj {
  position: absolute;
  z-index: 2;
  cursor: default;
  display: flex;
  align-items: center;
  justify-content: center;
}
.v-obj-emoji {
  font-size: 56px; line-height: 1; display: block;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,.15));
  animation: vfloat 3.5s ease-in-out infinite alternate;
  transition: transform .25s;
}
.v-obj:hover .v-obj-emoji {
  transform: scale(1.15) translateY(-4px);
  animation-play-state: paused;
}

/* stagger float animations */
.v-obj:nth-child(3) .v-obj-emoji { animation-delay: .5s; }
.v-obj:nth-child(4) .v-obj-emoji { animation-delay: 1s; }
.v-obj:nth-child(5) .v-obj-emoji { animation-delay: .3s; }
.v-obj:nth-child(6) .v-obj-emoji { animation-delay: 1.4s; }
.v-obj:nth-child(7) .v-obj-emoji { animation-delay: .7s; }
.v-obj:nth-child(8) .v-obj-emoji { animation-delay: 1.2s; }

@keyframes vfloat { from{transform:translateY(0)} to{transform:translateY(-10px)} }

/* tooltip bubble — hidden by default, shown on hover */
.v-tip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  background: #ffffff;
  border: 1.5px solid #E8E8F2;
  border-radius: 12px;
  padding: 8px 14px;
  font-size: 12px; font-weight: 700;
  white-space: nowrap; color: #0F0F2D;
  box-shadow: 0 6px 24px rgba(0,0,0,.10);
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s ease, transform .2s ease;
  transform: translateX(-50%) translateY(4px);
  z-index: 10;
}
.v-tip::after {
  content: ''; position: absolute;
  top: 100%; left: 50%; transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: #ffffff;
}
.v-obj:hover .v-tip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* object positions — pixel values within the 500x500 stage */
.vo-leaf     { top:  40px; left: 140px; }
.vo-planet   { top:  20px; right: 40px; }
.vo-dino     { top: 160px; left:  20px; }
.vo-bridge   { top: 200px; right: 10px; }
.vo-apple    { bottom: 100px; left: 30px; }
.vo-rocket   { bottom:  40px; right: 60px; }

/* ══ BUTTONS / SHARED ══ */
.sec-eyebrow {
  font-size:12px; font-weight:800; letter-spacing:2.5px;
  text-transform:uppercase; color:#5B4FE9; margin-bottom:14px;
}
.sec-h2 {
  font-size: clamp(28px, 3.5vw, 52px);
  font-weight:900; letter-spacing:-2px; line-height:1.08; color:#0F0F2D;
}
.sec-sub { font-size:17px; color:#6B7280; line-height:1.7; }

/* ══ CURIOSITY ══ */
.curiosity-sec {
  padding:96px 80px; background:#ffffff;
  border-top:1px solid #E8E8F2; text-align:center;
}
.curiosity-card {
  max-width:700px; margin:48px auto 0;
  background:#ffffff; border:2px solid #E8E8F2;
  border-radius:28px; padding:36px 40px;
  box-shadow:0 8px 40px rgba(0,0,0,.06);
}
.c-opts {
  display:flex; align-items:center; gap:16px;
}
.c-opt {
  flex:1; background:#F8F7FF; border:2px solid #E8E8F2;
  border-radius:18px; padding:20px;
  display:flex; align-items:center; gap:14px;
  text-align:left; cursor:pointer; transition:all .2s;
}
.c-opt:hover { border-color:#5B4FE9; background:#F0EDFF; }
.c-opt-icon { font-size:28px; flex-shrink:0; }
.c-opt-label { font-size:14px; font-weight:800; color:#0F0F2D; }
.c-opt-sub { font-size:12px; color:#6B7280; margin-top:2px; }
.c-or { font-size:13px; font-weight:700; color:#9CA3AF; flex-shrink:0; }
.c-examples { margin-top:28px; text-align:left; }
.c-ex-label {
  font-size:11px; font-weight:800; letter-spacing:1.5px;
  text-transform:uppercase; color:#9CA3AF; margin-bottom:12px;
}
.c-pills { display:flex; gap:10px; flex-wrap:wrap; }
.c-pill {
  display:inline-flex; align-items:center; gap:6px;
  background:#ffffff; border:1.5px solid #E8E8F2;
  border-radius:999px; padding:8px 16px;
  font-size:13px; font-weight:600; color:#0F0F2D;
  cursor:pointer; transition:all .18s;
}
.c-pill:hover { border-color:#5B4FE9; color:#5B4FE9; background:#F8F7FF; }

/* journey strip */
.journey-strip {
  display:flex; align-items:center; justify-content:center;
  flex-wrap:wrap; gap:8px; margin-top:48px;
}
.j-strip-inner {
  display:inline-flex; align-items:center; flex-wrap:wrap;
  justify-content:center; gap:10px;
  background:#F8F7FF; border:2px solid #E8E8F2;
  border-radius:999px; padding:16px 28px;
}
.j-arrow { color:#9CA3AF; font-weight:700; font-size:14px; }
.j-item-txt { font-size:13px; font-weight:800; }

/* ══ FEATURE CARDS ══ */
.feat-sec {
  padding:80px 80px; background:#ffffff;
  border-top:1px solid #E8E8F2;
}
.feat-head { text-align:center; margin-bottom:56px; }
.feat-grid {
  display:grid; grid-template-columns:repeat(3,1fr);
  gap:24px; max-width:1000px; margin:0 auto;
}
.feat-card {
  background:#F8F7FF; border:2px solid #E8E8F2;
  border-radius:28px; padding:36px 28px;
  transition:all .2s;
}
.feat-card:hover { border-color:#5B4FE9; transform:translateY(-4px); box-shadow:0 12px 40px rgba(91,79,233,.12); }
.feat-card.featured {
  background:linear-gradient(155deg,#2C23B0,#5B4FE9);
  border-color:transparent;
  box-shadow:0 12px 48px rgba(91,79,233,.4);
}
.feat-card-icon { font-size:48px; margin-bottom:20px; line-height:1; }
.feat-card h3 { font-size:20px; font-weight:900; color:#0F0F2D; margin-bottom:10px; }
.feat-card p  { font-size:15px; color:#6B7280; line-height:1.65; }
.feat-card.featured h3 { color:#ffffff; }
.feat-card.featured p  { color:rgba(255,255,255,.72); }
.feat-strip {
  display:flex; gap:32px; justify-content:center; flex-wrap:wrap;
  margin-top:48px; padding-top:40px; border-top:1px solid #E8E8F2;
}
.feat-strip-item {
  display:flex; align-items:center; gap:10px;
  font-size:14px; font-weight:700; color:#0F0F2D;
}
.feat-strip-item span {
  background:#F8F7FF; border-radius:10px;
  padding:8px 12px; font-size:18px;
}

/* ══ DISCOVERY MAP ══ */
.disc-sec {
  padding:96px 80px; background:#F8F7FF;
  border-top:1px solid #E8E8F2; text-align:center;
}
.disc-sub { font-size:16px; color:#6B7280; max-width:440px; margin:12px auto 0; }

.disc-map {
  position: relative;
  width: 820px; height: 520px;
  margin: 64px auto 0;
}
.disc-map svg.dm-lines {
  position: absolute;
  top:0; left:0; width:100%; height:100%;
  pointer-events:none; z-index:0;
}
.disc-sunflower {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: 156px; height: 156px; border-radius: 28px;
  background: linear-gradient(145deg,#FFFBEB,#FEF9C3);
  border: 2px solid #FDE68A;
  display: flex; align-items: center; justify-content: center;
  font-size: 88px; line-height: 1;
  box-shadow: 0 16px 48px rgba(0,0,0,.1);
}
.dc {
  position: absolute; z-index: 2;
  background: #ffffff; border: 2px solid #E8E8F2;
  border-radius: 20px; padding: 16px 18px;
  box-shadow: 0 4px 20px rgba(0,0,0,.06);
  text-align: left; width: 188px;
  transition: all .2s;
}
.dc:hover {
  border-color: #5B4FE9;
  box-shadow: 0 8px 32px rgba(91,79,233,.14);
  transform: translateY(-3px);
}
.dc-icon {
  width: 36px; height: 36px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; margin-bottom: 9px;
}
.dc h4 { font-size: 13px; font-weight: 800; margin-bottom: 3px; }
.dc p  { font-size: 11px; color: #6B7280; line-height: 1.5; }

/* positions within the 820x520 map */
.dc-science   { top: 24px;  left: 0; }
.dc-math      { top: 24px;  right: 0; }
.dc-vocab     { bottom: 80px; left: 0; }
.dc-why       { bottom: 60px; right: 0; }
.dc-challenge { bottom: 8px; left: 50%; transform: translateX(-50%); }

/* ══ JOURNEY BELT ══ */
.belt-sec {
  padding:52px 80px;
  border-top:1px solid #E8E8F2; border-bottom:1px solid #E8E8F2;
  background:#ffffff;
}
.belt-label {
  text-align:center; font-size:12px; font-weight:800;
  letter-spacing:2px; text-transform:uppercase; color:#9CA3AF; margin-bottom:32px;
}
.belt-row { display:flex; justify-content:space-around; gap:12px; }
.belt-item {
  display:flex; align-items:center; gap:14px;
  flex:1; padding:18px 16px; border-radius:16px; transition:background .2s;
}
.belt-item:hover { background:#F8F7FF; }
.belt-icon {
  width:46px; height:46px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  font-size:21px; flex-shrink:0;
}
.belt-item h4 { font-size:14px; font-weight:800; color:#0F0F2D; margin-bottom:2px; }
.belt-item p  { font-size:12px; color:#6B7280; line-height:1.4; }

/* ══ HOW IT WORKS ══ */
.hiw-sec { padding:96px 80px; background:#ffffff; border-top:1px solid #E8E8F2; }
.hiw-inner { max-width:1060px; margin:0 auto; }
.hiw-head { text-align:center; margin-bottom:72px; }
.hiw-head p { font-size:17px; color:#6B7280; max-width:440px; margin:12px auto 0; }
.hiw-steps {
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:28px; position:relative;
}
.hiw-steps::before {
  content:''; position:absolute; top:30px; left:12%; right:12%;
  height:1px; background:#E8E8F2; z-index:0;
}
.hiw-step { text-align:center; position:relative; z-index:1; }
.hiw-num {
  width:60px; height:60px; border-radius:50%;
  background:#5B4FE9; color:#fff;
  font-size:20px; font-weight:900;
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 20px;
  box-shadow:0 8px 24px rgba(91,79,233,.35);
  position:relative; z-index:1;
}
.hiw-illus { font-size:52px; margin-bottom:14px; line-height:1; filter:drop-shadow(0 4px 10px rgba(0,0,0,.1)); }
.hiw-step h3 { font-size:17px; font-weight:800; margin-bottom:8px; color:#0F0F2D; }
.hiw-step p  { font-size:13px; color:#6B7280; line-height:1.6; }

/* ══ WHY VIDEOS ══ */
.why-sec {
  padding:96px 0 96px 80px; background:#ffffff;
  border-top:1px solid #E8E8F2; overflow:hidden;
}
.why-head { margin-bottom:14px; padding-right:80px; }
.why-head p { font-size:17px; color:#6B7280; max-width:480px; margin-top:12px; }
.why-carousel {
  display:flex; gap:18px; margin-top:40px;
  overflow-x:auto; padding:0 80px 16px 0;
  scroll-snap-type:x mandatory; scrollbar-width:none;
}
.why-carousel::-webkit-scrollbar { display:none; }
.why-card {
  flex-shrink:0; width:256px; height:340px;
  border-radius:22px; position:relative;
  overflow:hidden; cursor:pointer;
  scroll-snap-align:start; transition:transform .25s;
}
.why-card:hover { transform:scale(1.03); }
.why-skel { background:#E8E8F2; animation:shimmer 1.4s infinite; }
@keyframes shimmer {
  0%,100% { opacity:1; }
  50% { opacity:.45; }
}
.why-bg { position:absolute; inset:0; }
.why-overlay {
  position:absolute; inset:0;
  background:linear-gradient(to top,rgba(8,8,30,.88) 40%,rgba(8,8,30,.08) 100%);
}
.why-play {
  position:absolute; top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:52px; height:52px; border-radius:50%;
  background:rgba(255,255,255,.22); border:2px solid rgba(255,255,255,.55);
  display:flex; align-items:center; justify-content:center;
  backdrop-filter:blur(4px); transition:all .2s;
}
.why-card:hover .why-play { background:rgba(255,255,255,.38); transform:translate(-50%,-50%) scale(1.1); }
.why-play::after {
  content:''; border-style:solid;
  border-width:8px 0 8px 13px;
  border-color:transparent transparent transparent #fff;
  margin-left:3px;
}
.why-body { position:absolute; bottom:0; left:0; right:0; padding:20px; }
.why-body h4 { font-size:16px; font-weight:800; color:#fff; line-height:1.3; }
.why-dur { font-size:11px; color:rgba(255,255,255,.5); margin-top:4px; font-weight:700; letter-spacing:.5px; }
.wc1 .why-bg { background:linear-gradient(170deg,#1e3a5f 0%,#1d4ed8 50%,#7dd3fc 100%); }
.wc2 .why-bg { background:linear-gradient(170deg,#0f2027 0%,#203a43 50%,#2c5364 100%); }
.wc3 .why-bg { background:linear-gradient(170deg,#450a0a 0%,#b91c1c 50%,#f97316 100%); }
.wc4 .why-bg { background:linear-gradient(170deg,#1a1a2e 0%,#0f3460 50%,#533483 100%); }
.wc5 .why-bg { background:linear-gradient(170deg,#052e16 0%,#15803d 50%,#4ade80 100%); }
.wc6 .why-bg { background:linear-gradient(170deg,#2e1065 0%,#6d28d9 50%,#a78bfa 100%); }
.why-controls {
  display:flex; align-items:center; gap:12px;
  margin-top:28px; padding-right:80px;
}
.wc-btn {
  width:42px; height:42px; border-radius:50%; cursor:pointer;
  border:2px solid #E8E8F2; background:#ffffff;
  display:flex; align-items:center; justify-content:center;
  font-size:16px; transition:all .2s; color:#0F0F2D;
  font-family:inherit;
}
.wc-btn:hover { border-color:#5B4FE9; background:#F8F7FF; }
.w-all {
  display:inline-flex; align-items:center; gap:6px;
  color:#5B4FE9; font-size:14px; font-weight:700;
  margin-left:auto;
}
.w-all::after { content:'→'; }

/* ══ BILINGUAL ══ */
.bili-sec { padding:96px 80px; background:#F8F7FF; border-top:1px solid #E8E8F2; }
.bili-inner { max-width:980px; margin:0 auto; }
.bili-head { text-align:center; margin-bottom:52px; }
.lang-toggle {
  display:inline-flex; background:#E5E7EB;
  border-radius:999px; padding:4px; gap:2px; margin-top:24px;
}
.lang-btn {
  padding:9px 24px; border-radius:999px;
  font-size:14px; font-weight:700; cursor:pointer;
  transition:all .2s; border:none;
  background:transparent; color:#6B7280; font-family:inherit;
}
.lang-btn.active { background:#ffffff; color:#0F0F2D; box-shadow:0 2px 8px rgba(0,0,0,.08); }
.bili-demo {
  display:grid; grid-template-columns:1fr auto 1fr;
  align-items:center; gap:32px;
  background:#ffffff; border-radius:32px;
  padding:48px; border:2px solid #E8E8F2;
  box-shadow:0 8px 40px rgba(0,0,0,.06);
}
.bili-flag { font-size:28px; margin-bottom:8px; }
.bili-lang-tag {
  font-size:11px; font-weight:800; letter-spacing:2px;
  text-transform:uppercase; color:#9CA3AF; margin-bottom:16px;
}
.bili-sentence {
  font-size:22px; font-weight:800; line-height:1.45;
  color:#0F0F2D; transition:opacity .3s;
}
.bili-sentence.faded { opacity:.25; }
.bili-listen {
  display:inline-flex; align-items:center; gap:8px;
  margin-top:16px; font-size:13px; font-weight:700; color:#5B4FE9;
  cursor:pointer; border:none; background:none; padding:0; font-family:inherit;
}
.bili-center {
  display:flex; flex-direction:column;
  align-items:center; gap:16px; flex-shrink:0;
}
.bili-obj { font-size:96px; line-height:1; filter:drop-shadow(0 8px 20px rgba(0,0,0,.12)); }
.bili-swap {
  width:36px; height:36px; border-radius:50%;
  background:#F8F7FF; border:2px solid #E8E8F2;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; transition:all .2s; font-size:14px;
  color:#0F0F2D;
}
.bili-swap:hover { background:#5B4FE9; border-color:#5B4FE9; color:#fff; }
.bili-dots { display:flex; gap:6px; justify-content:center; margin-top:28px; }
.bili-dot {
  width:8px; height:8px; border-radius:50%;
  background:#E8E8F2; cursor:pointer; transition:all .2s;
}
.bili-dot.active { background:#5B4FE9; width:20px; border-radius:4px; }

/* ══ AGES ══ */
.ages-sec { padding:80px 80px; background:#ffffff; border-top:1px solid #E8E8F2; }
.ages-inner { max-width:900px; margin:0 auto; text-align:center; }
.ages-grid {
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:20px; margin-top:48px;
}
.age-card {
  background:#F8F7FF; border:2px solid #E8E8F2;
  border-radius:24px; padding:28px 20px; text-align:center;
  transition:all .2s;
}
.age-card:hover { border-color:#5B4FE9; background:#F0EDFF; transform:translateY(-3px); }
.age-icon { font-size:36px; margin-bottom:14px; }
.age-card h4 { font-size:15px; font-weight:800; color:#0F0F2D; margin-bottom:4px; }
.age-card p  { font-size:12px; color:#6B7280; line-height:1.5; }

/* ══ PRICING ══ */
.pricing-sec { padding:80px; background:#F8F7FF; border-top:1px solid #E8E8F2; text-align:center; }
.pricing-grid {
  display:grid; grid-template-columns:1fr 1fr;
  gap:20px; max-width:820px; margin:0 auto;
  align-items:stretch;
}
.plan {
  border-radius:28px; padding:40px;
  text-align:left; display:flex; flex-direction:column;
  justify-content:space-between; position:relative;
}
.plan-free {
  background:#ffffff; border:2px solid #E8E8F2;
}
.plan-pro {
  background:linear-gradient(155deg,#2C23B0 0%,#5B4FE9 100%);
  box-shadow:0 24px 64px rgba(91,79,233,.4);
}
/* floating Best Value badge */
.plan-badge {
  position:absolute; top:-14px; left:50%; transform:translateX(-50%);
  background:linear-gradient(90deg,#F59E0B,#FBBF24);
  color:#fff; font-size:11px; font-weight:800; letter-spacing:1.5px;
  text-transform:uppercase; padding:5px 16px; border-radius:999px;
  white-space:nowrap; box-shadow:0 4px 12px rgba(245,158,11,.4);
}
.plan-tier { font-size:11px; font-weight:800; letter-spacing:2px; text-transform:uppercase; margin-bottom:6px; }
.plan-free .plan-tier { color:#9CA3AF; }
.plan-pro  .plan-tier { color:#C4B5FD; }
.plan-name { font-size:22px; font-weight:900; margin-bottom:20px; }
.plan-free .plan-name { color:#0F0F2D; }
.plan-pro  .plan-name { color:#fff; }
.plan-price-row { display:flex; align-items:flex-end; gap:2px; line-height:1; margin-bottom:6px; }
.plan-currency { font-size:24px; font-weight:800; padding-bottom:8px; }
.plan-free .plan-currency { color:#5B4FE9; }
.plan-pro  .plan-currency { color:#fff; }
.plan-price { font-size:64px; font-weight:900; letter-spacing:-3px; }
.plan-free .plan-price { color:#5B4FE9; }
.plan-pro  .plan-price { color:#fff; }
.plan-price-unit { font-size:16px; font-weight:600; padding-bottom:10px; }
.plan-cents { font-size:22px; font-weight:800; letter-spacing:0; align-self:flex-start; padding-top:10px; }
.plan-free .plan-cents { color:#5B4FE9; }
.plan-pro  .plan-cents { color:#fff; }
.plan-free .plan-price-unit { color:#9CA3AF; }
.plan-pro  .plan-price-unit { color:rgba(255,255,255,.7); }
.plan-period { font-size:13px; margin-bottom:28px; }
.plan-free .plan-period { color:#6B7280; }
.plan-pro  .plan-period { color:rgba(255,255,255,.65); }
.plan-pro  .plan-period strong { color:#fff; }
.plan-feats { list-style:none; display:flex; flex-direction:column; gap:11px; margin-bottom:32px; }
.plan-feats li { display:flex; align-items:center; gap:10px; font-size:14px; }
.plan-free .plan-feats li { color:#374151; }
.plan-pro  .plan-feats li { color:rgba(255,255,255,.9); }
.plan-feats li::before { content:'✓'; font-weight:900; font-size:13px; flex-shrink:0; width:18px; height:18px; display:flex; align-items:center; justify-content:center; border-radius:50%; }
.plan-free .plan-feats li::before { color:#fff; background:#22C55E; }
.plan-pro  .plan-feats li::before { color:#065F46; background:#6EE7B7; }
.plan-feat-no { opacity:.45; }
.plan-feat-no::before { content:'✕' !important; background:#E5E7EB !important; color:#9CA3AF !important; }
.plan-btn {
  display:flex; align-items:center; justify-content:center;
  padding:15px 28px; border-radius:999px;
  font-size:15px; font-weight:800; text-decoration:none;
  transition:all .2s; margin-top:auto;
}
.plan-btn-outline {
  border:2px solid #DDD8FF; color:#5B4FE9; background:#F8F7FF;
}
.plan-btn-outline:hover { border-color:#5B4FE9; background:#EDE9FF; transform:translateY(-1px); }
.plan-btn-white {
  background:#ffffff; color:#5B4FE9;
  box-shadow:0 6px 20px rgba(0,0,0,.18);
}
.plan-btn-white:hover { background:#F0EDFF; transform:translateY(-1px); }

/* ══ CTA ══ */
.cta-sec {
  padding:100px 80px; text-align:center;
  background:linear-gradient(160deg,#2C23B0 0%,#5B4FE9 55%,#7C6FF5 100%);
  position:relative; overflow:hidden;
}
.cta-sec::before {
  content:''; position:absolute; top:-100px; right:-80px;
  width:400px; height:400px; border-radius:50%;
  background:rgba(255,255,255,.06); pointer-events:none;
}
.cta-sec::after {
  content:''; position:absolute; bottom:-80px; left:-60px;
  width:320px; height:320px; border-radius:50%;
  background:rgba(255,255,255,.04); pointer-events:none;
}
.cta-globe { font-size:72px; margin-bottom:24px; filter:drop-shadow(0 8px 24px rgba(0,0,0,.2)); }
.cta-sec h2 {
  font-size:clamp(26px,4vw,54px); font-weight:900;
  letter-spacing:-2px; line-height:1.05; color:#fff; margin-bottom:12px;
}
.cta-sub  { font-size:18px; color:rgba(255,255,255,.7); margin-bottom:8px; }
.cta-sub2 { font-size:15px; color:rgba(255,255,255,.5); margin-bottom:48px; }
.btn-white {
  display:inline-flex; align-items:center; gap:10px;
  background:#fff; color:#5B4FE9;
  padding:16px 36px; border-radius:999px;
  font-size:16px; font-weight:800;
  box-shadow:0 8px 32px rgba(0,0,0,.2);
  transition:all .2s; text-decoration:none;
}
.btn-white:hover { transform:translateY(-2px); box-shadow:0 14px 40px rgba(0,0,0,.25); color:#5B4FE9; }
.btn-ghost-light {
  display:inline-flex; align-items:center; gap:10px;
  color:rgba(255,255,255,.8); font-size:15px; font-weight:700;
  padding:16px 24px; border-radius:999px;
  border:2px solid rgba(255,255,255,.3);
  transition:all .2s; text-decoration:none;
}
.btn-ghost-light:hover { border-color:rgba(255,255,255,.7); color:#fff; }

/* ══ FOOTER ══ */
footer { background:#0F0F2D; padding:64px 80px 36px; }
.footer-top {
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr 1fr;
  gap:40px; margin-bottom:56px;
}
.footer-logo {
  display:flex; align-items:center; gap:10px;
  font-size:20px; font-weight:800; color:#fff; text-decoration:none; margin-bottom:14px;
}
.footer-logo img { width:30px; height:30px; border-radius:8px; }
.footer-logo span { color:#8B7CF6; }
.footer-tagline { font-size:14px; color:#6B7280; line-height:1.7; max-width:220px; }
.footer-col h5 { font-size:11px; font-weight:800; letter-spacing:2px; text-transform:uppercase; color:#4B5563; margin-bottom:16px; }
.footer-col a { display:block; font-size:14px; color:#6B7280; margin-bottom:10px; transition:color .15s; text-decoration:none; }
.footer-col a:hover { color:#fff; }
.footer-social { display:flex; gap:10px; margin-top:20px; }
.soc-ico { width:36px; height:36px; border-radius:10px; background:#1F2937; display:flex; align-items:center; justify-content:center; font-size:16px; transition:background .15s; text-decoration:none; }
.soc-ico:hover { background:#374151; }
.footer-bottom {
  border-top:1px solid #1F2937; padding-top:28px;
  display:flex; justify-content:space-between; font-size:13px; color:#4B5563;
}

/* ══ RESPONSIVE ══ */
@media (max-width:1100px) {
  .hero { grid-template-columns:1fr; padding:56px 32px; text-align:center; min-height:auto; gap:0; }
  .hero-desc { margin:20px auto 36px; }
  .hero-btns { justify-content:center; }
  .hero-visual { display:none; }
  nav { padding:0 24px; }
  .nav-links { display:none; }
}
@media (max-width:900px) {
  .curiosity-sec,.disc-sec,.hiw-sec,.bili-sec,.ages-sec,.pricing-sec,.cta-sec,.feat-sec { padding:72px 24px; }
  .why-sec { padding:72px 0 72px 24px; }
  .why-head,.why-controls { padding-right:24px; }
  .why-carousel { padding-right:24px; }
  .curiosity-card { padding:24px; }
  .c-opts { flex-direction:column; }
  .feat-grid { grid-template-columns:1fr; max-width:480px; }
  .disc-map { width:100%; max-width:480px; height:580px; }
  .dc { width:150px; }
  .dc p { display:none; }
  .dc-challenge { bottom:4px; }
  .hiw-steps { grid-template-columns:1fr 1fr; gap:20px; }
  .hiw-steps::before { display:none; }
  .bili-demo { grid-template-columns:1fr; text-align:center; padding:32px 24px; }
  .bili-center { order:-1; }
  .bili-listen { margin:12px auto 0; }
  .ages-grid { grid-template-columns:1fr 1fr; }
  .pricing-grid { grid-template-columns:1fr; max-width:480px; }
  .footer-top { grid-template-columns:1fr 1fr; }
  .footer-top > div:first-child { grid-column:1/-1; }
  .footer-bottom { flex-direction:column; gap:8px; text-align:center; }
  footer { padding:48px 24px 28px; }
  .belt-sec { padding:48px 24px; }
  .belt-row { flex-wrap:wrap; gap:8px; }
  .belt-item { flex:1 1 calc(50% - 4px); }
}
@media (max-width:600px) {
  .ages-grid { grid-template-columns:1fr; }
  .hiw-steps { grid-template-columns:1fr; }
  .why-card { width:220px; height:290px; }
  .belt-item { flex:1 1 100%; }
  .disc-map { height:480px; }
  .dc { width:130px; }
}

/* ══ PHONE (≤480px) ══ */
@media (max-width:480px) {
  /* Nav */
  nav { padding:0 16px; height:60px; }
  .nav-logo { font-size:17px; }
  .nav-cta { padding:8px 16px; font-size:13px; }

  /* Hero */
  .hero { padding:36px 20px 48px; }
  .hero h1 { font-size:clamp(36px,10vw,48px); letter-spacing:-2px; }
  .hero-tagline { font-size:clamp(15px,4.5vw,20px); }
  .hero-desc { font-size:14px; margin:16px 0 28px; }
  .btn-primary, .btn-ghost { padding:12px 20px; font-size:14px; }

  /* Section headings */
  .section-title { font-size:clamp(26px,7vw,36px); }

  /* Curiosity */
  .curiosity-sec { padding:56px 20px; }
  .c-pills { gap:8px; }
  .c-pill { padding:8px 14px; font-size:13px; }

  /* Discovery map → 2-col card grid, no absolute positioning */
  .disc-sec { padding:56px 20px; }
  .disc-map {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:12px;
    height:auto;
    width:100%;
    max-width:100%;
    margin-top:40px;
  }
  .disc-map svg.dm-lines { display:none; }
  .disc-sunflower {
    position:static;
    transform:none;
    grid-column:1 / -1;
    width:90px; height:90px;
    font-size:50px;
    border-radius:18px;
    margin:0 auto 8px;
  }
  .dc {
    position:static;
    width:100%;
    transform:none;
  }
  .dc-challenge {
    grid-column:1 / -1;
    transform:none;
    text-align:center;
  }

  /* Belt */
  .belt-sec { padding:40px 20px; }

  /* How It Works */
  .hiw-sec { padding:56px 20px; }

  /* Why Videos */
  .why-sec { padding:56px 0 56px 20px; }
  .why-head, .why-controls { padding-right:20px; }
  .why-card { width:190px; height:256px; }

  /* Bilingual */
  .bili-sec { padding:56px 20px; }
  .bili-lang-toggle { gap:8px; }

  /* Ages */
  .ages-sec { padding:56px 20px; }

  /* Pricing */
  .pricing-sec { padding:56px 20px; }
  .pricing-grid { max-width:100%; gap:28px; }
  .plan { padding:32px 24px; }
  .plan-price { font-size:52px; }

  /* CTA */
  .cta-sec { padding:72px 20px; }
  .cta-sec h2 { font-size:clamp(28px,8vw,40px); }

  /* Footer */
  footer { padding:40px 20px 24px; }
  .footer-top { grid-template-columns:1fr; }
  .footer-top > div:first-child { grid-column:1; }
}