:root {
  color-scheme: light;
  --canvas: #f7f4ea;
  --paper: #fffefa;
  --board: #0f3d36;
  --ink: #17211d;
  --muted: #617067;
  --soft: #93a097;
  --green: #0f8b6f;
  --green-dark: #0a5f4d;
  --lime: #d9f99d;
  --lemon: #ffe27a;
  --coral: #ff7a59;
  --sky: #69c7e8;
  --line: rgba(23, 33, 29, 0.13);
  --shadow: 0 22px 54px rgba(35, 67, 54, 0.13);
  --shadow-bold: 0 34px 90px rgba(35, 67, 54, 0.2);
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(217, 249, 157, 0.45), transparent 19rem),
    radial-gradient(circle at 92% 12%, rgba(105, 199, 232, 0.2), transparent 24rem),
    radial-gradient(circle at 56% 88%, rgba(255, 226, 122, 0.25), transparent 22rem),
    linear-gradient(135deg, #fffefa 0%, var(--canvas) 56%, #edf8f0 100%);
  letter-spacing: 0;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 61, 54, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 61, 54, 0.045) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.48), transparent 72%);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  max-width: calc(var(--max) + 48px);
  min-height: 76px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(220px, auto) 1fr auto auto;
  align-items: center;
  gap: 1rem;
  background: rgba(247, 244, 234, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; gap: .78rem; align-items: center; }
.brand-badge {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: white;
  font-weight: 950;
  background: linear-gradient(135deg, var(--green), var(--board));
  box-shadow: 0 12px 26px rgba(15, 139, 111, .22);
}
.brand strong, .brand small { display: block; line-height: 1.1; }
.brand strong { font-weight: 950; }
.brand small { color: var(--muted); margin-top: .22rem; font-size: .72rem; }
.nav-links { display: flex; justify-content: center; gap: 1.35rem; }
.nav-links a {
  position: relative;
  color: var(--muted);
  font-weight: 850;
  font-size: .92rem;
  padding: .45rem 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green), var(--lemon));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .18s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }

.channel-link, .button, .text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .52rem;
  font-weight: 900;
  border-radius: 999px;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.channel-link, .button.primary {
  color: white;
  background: linear-gradient(135deg, var(--green-dark), var(--green));
  box-shadow: 0 14px 30px rgba(15, 139, 111, .22);
}
.channel-link { min-height: 42px; padding: 0 1rem; }
.button { min-height: 48px; padding: .84rem 1.15rem; }
.button.secondary {
  color: var(--board);
  border: 1px solid var(--line);
  background: rgba(255, 254, 250, .78);
}
.channel-link:hover, .button:hover, .text-link:hover { transform: translateY(-2px); }
.button.primary:hover, .channel-link:hover {
  background: var(--board);
  box-shadow: 0 18px 42px rgba(15, 61, 54, .28);
}
.menu-button {
  display: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  padding: .68rem .9rem;
  font-weight: 900;
}

.studio-hero, .section, .subscribe-band, .footer {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.studio-hero { padding-top: 3.5rem; }
.hero-topline {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-bottom: 1.2rem;
}
.hero-topline span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: .4rem .76rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 254, 250, .72);
  color: var(--muted);
  font-weight: 850;
  font-size: .84rem;
}
.hero-board {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(310px, .52fr);
  gap: 2rem;
  min-height: 610px;
  align-items: center;
  padding: clamp(1.35rem, 4vw, 3rem);
  border: 1px solid rgba(15, 61, 54, .18);
  border-radius: 36px;
  background:
    linear-gradient(135deg, rgba(255, 254, 250, .95), rgba(240, 250, 239, .88)),
    radial-gradient(circle at 80% 18%, rgba(217, 249, 157, .38), transparent 19rem),
    radial-gradient(circle at 12% 82%, rgba(105, 199, 232, .13), transparent 18rem);
  box-shadow: var(--shadow-bold);
  overflow: hidden;
}
.hero-board::before {
  content: "";
  position: absolute;
  inset: 1.1rem;
  border: 2px solid rgba(15, 61, 54, .09);
  border-radius: 26px;
  pointer-events: none;
}
.hero-board::after {
  content: "AI -> ML -> LLMs -> Build";
  position: absolute;
  right: 2.2rem;
  top: 1.8rem;
  color: rgba(15, 61, 54, .28);
  font-family: "Space Grotesk", Inter, sans-serif;
  font-weight: 950;
}
.hero-copy { position: relative; z-index: 1; max-width: 760px; }
.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: .75rem;
  font-weight: 950;
  letter-spacing: .14em;
  text-transform: uppercase;
}
h1, h2, h3 {
  margin: 0;
  color: var(--ink);
  font-family: "Space Grotesk", Inter, sans-serif;
  letter-spacing: 0;
}
h1 { max-width: 760px; font-size: clamp(3.4rem, 8vw, 7.4rem); line-height: .88; }
h2 { font-size: clamp(2.2rem, 4.8vw, 4.4rem); line-height: .98; }
h3 { font-size: 1.2rem; line-height: 1.2; }
p { color: var(--muted); line-height: 1.74; }
.lead { max-width: 680px; font-size: clamp(1.08rem, 2vw, 1.34rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 1.7rem; }

.portrait-sticker {
  position: relative;
  z-index: 1;
  justify-self: center;
  width: min(100%, 405px);
  padding: .82rem;
  border-radius: 28px;
  background: white;
  box-shadow: 0 28px 70px rgba(35, 67, 54, .18);
  transform: rotate(-1.5deg);
}
.portrait-sticker::before {
  content: "";
  position: absolute;
  inset: -1.1rem;
  z-index: -1;
  border-radius: 34px;
  background: linear-gradient(135deg, var(--lime), #fff4b5 55%, #d8fff4);
  transform: rotate(5deg);
}
.portrait-sticker img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  object-position: 50% 48%;
  border-radius: 24px;
  animation: gentleFloat 5s ease-in-out infinite;
}
.sticker-caption {
  position: absolute;
  left: 50%;
  bottom: 1.05rem;
  width: max-content;
  max-width: calc(100% - 2rem);
  transform: translateX(-50%) rotate(1deg);
  display: grid;
  gap: .12rem;
  padding: .72rem .95rem;
  border: 1px solid rgba(15, 61, 54, .14);
  border-radius: 18px;
  background: rgba(255, 254, 250, .92);
  box-shadow: 0 12px 30px rgba(35, 67, 54, .12);
}
.sticker-caption span { color: var(--muted); font-size: .86rem; }

.start-module {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(320px, 1fr);
  gap: 1.2rem;
  align-items: stretch;
  margin-top: 1.2rem;
  padding: 1rem;
  border: 1px solid rgba(15, 61, 54, .22);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(15, 61, 54, .98), rgba(9, 76, 64, .98)),
    radial-gradient(circle at 20% 20%, rgba(217, 249, 157, .16), transparent 18rem);
  box-shadow: var(--shadow-bold);
}
.start-copy {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}
.start-copy h2, .start-copy p { color: white; }
.start-copy p { color: rgba(255, 255, 255, .74); }
.start-copy .subtitle { margin-top: .35rem; color: var(--lemon); font-weight: 900; }
.featured-thumb, .video-thumb {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--board);
}
.featured-thumb { min-height: 360px; border-radius: 24px; }
.featured-thumb img, .video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .22s ease;
}
.featured-thumb:hover img, .video-thumb:hover img { transform: scale(1.035); }
.featured-thumb span, .video-thumb span {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--board);
  background: var(--lemon);
  box-shadow: 0 18px 42px rgba(255, 226, 122, .34);
}

.section { padding-top: 6rem; }
.section-intro { max-width: 760px; margin-bottom: 2rem; }
.section-intro.row {
  max-width: none;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: end;
}
.section-intro.centered { text-align: center; margin-left: auto; margin-right: auto; }
.section-intro p:not(.eyebrow) { font-size: 1.05rem; }
.roadmap-list { display: grid; gap: .9rem; }
.roadmap-item {
  display: grid;
  grid-template-columns: 72px 72px 1fr;
  gap: 1rem;
  align-items: center;
  min-height: 122px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 254, 250, .86);
  box-shadow: 0 12px 30px rgba(35, 67, 54, .08);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.roadmap-item:hover, .video-card:hover, .reason-card:hover, .topic-cloud article:hover, .notebook-card:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 139, 111, .32);
  box-shadow: var(--shadow);
}
.roadmap-number {
  font-family: "Space Grotesk", Inter, sans-serif;
  color: var(--soft);
  font-weight: 950;
  font-size: 1.6rem;
}
.roadmap-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: var(--board);
  font-weight: 950;
  background: linear-gradient(135deg, var(--lime), var(--lemon));
}
.roadmap-item p { margin: .35rem 0 0; }
.video-row, .reason-row, .topic-cloud, .reading-grid { display: grid; gap: 1rem; }
.video-row, .reading-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.video-card, .reason-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 254, 250, .88);
  box-shadow: 0 14px 35px rgba(35, 67, 54, .08);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.video-thumb { height: 215px; }
.video-thumb span { width: 54px; height: 54px; }
.video-body { padding: 1.2rem; }
.text-link { color: var(--green); justify-content: flex-start; }

.reading-card {
  position: relative;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.35rem;
  border: 1px solid rgba(15, 61, 54, .16);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 254, 250, .94), rgba(241, 252, 238, .9)),
    repeating-linear-gradient(to bottom, transparent 0 34px, rgba(15, 61, 54, .055) 35px);
  box-shadow: 0 16px 38px rgba(35, 67, 54, .1);
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.reading-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.2rem;
  right: 1.2rem;
  height: 6px;
  border-radius: 0 0 999px 999px;
  background: linear-gradient(90deg, var(--green), var(--lemon), var(--sky));
}
.reading-card::after {
  content: "notes";
  position: absolute;
  right: .9rem;
  bottom: .65rem;
  color: rgba(15, 61, 54, .06);
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: 3.6rem;
  font-weight: 950;
  pointer-events: none;
}
.reading-card:hover {
  transform: translateY(-5px) rotate(.4deg);
  border-color: rgba(15, 139, 111, .3);
  box-shadow: var(--shadow);
}
.reading-card span {
  width: fit-content;
  margin-bottom: 1rem;
  padding: .38rem .7rem;
  border-radius: 999px;
  color: white;
  background: var(--board);
  font-size: .76rem;
  font-weight: 900;
}
.reading-card h3 { margin-bottom: .75rem; }
.reading-card p { flex: 1; }

.about-studio {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .5fr);
  gap: 1.2rem;
}
.about-card, .notebook-card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 254, 250, .9);
  box-shadow: var(--shadow);
  padding: clamp(1.3rem, 4vw, 2.3rem);
}
.about-card p { font-size: 1.02rem; }
.notebook-card {
  align-self: stretch;
  background:
    linear-gradient(180deg, rgba(255, 254, 250, .93), rgba(240, 250, 239, .9)),
    repeating-linear-gradient(to bottom, transparent 0 35px, rgba(15, 61, 54, .055) 36px);
}
.notebook-card ul {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
  line-height: 1.8;
}
.reason-row, .topic-cloud { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.reason-card { min-height: 190px; padding: 1.35rem; }
.reason-card h3 { text-transform: uppercase; letter-spacing: .08em; font-size: .98rem; }
.topic-cloud article {
  display: grid;
  gap: 1.2rem;
  min-height: 150px;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(255, 254, 250, .94), rgba(241, 252, 238, .88)),
    radial-gradient(circle at 92% 20%, rgba(105, 199, 232, .15), transparent 9rem);
  box-shadow: 0 12px 30px rgba(35, 67, 54, .08);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.topic-cloud span {
  width: fit-content;
  color: var(--green-dark);
  padding: .36rem .7rem;
  border-radius: 999px;
  background: rgba(15, 139, 111, .1);
  font-weight: 900;
  font-size: .78rem;
}
.topic-cloud strong { font-family: "Space Grotesk", Inter, sans-serif; font-size: 1.2rem; }

.subscribe-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-top: 6rem;
  padding-top: 3rem;
  padding-bottom: 3rem;
  border-radius: 34px;
  background:
    radial-gradient(circle at 86% 20%, rgba(217, 249, 157, .2), transparent 18rem),
    linear-gradient(135deg, var(--board), #0b5d4d 54%, #0e7490);
  box-shadow: var(--shadow-bold);
}
.subscribe-band h2, .subscribe-band p, .subscribe-band .eyebrow { color: white; }
.subscribe-band p { max-width: 700px; color: rgba(255, 255, 255, .76); }
.subscribe-button { color: var(--board); background: white; }

.footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  padding-top: 3.5rem;
  padding-bottom: 3rem;
  margin-top: 4rem;
  border-top: 1px solid var(--line);
}
.footer h2 { font-size: 1.45rem; }
.footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1rem; }
.footer nav a { color: var(--muted); font-weight: 850; }
.copyright { grid-column: 1 / -1; color: var(--soft); margin: 0; font-size: .9rem; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .56s ease, transform .56s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }
@keyframes gentleFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}
@media (max-width: 980px) {
  .site-header { grid-template-columns: auto 1fr auto; }
  .brand small { display: none; }
  .nav-links {
    position: absolute;
    top: 76px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    gap: .25rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(255, 254, 250, .96);
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .channel-link { display: none; }
  .menu-button { display: inline-flex; }
  .hero-board, .start-module, .about-studio, .subscribe-band, .footer, .section-intro.row {
    grid-template-columns: 1fr;
  }
  .portrait-sticker { max-width: 360px; }
  .video-row, .reason-row, .topic-cloud, .reading-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 640px) {
  .site-header { padding: 0 16px; }
  .studio-hero, .section, .subscribe-band, .footer {
    padding-left: 18px;
    padding-right: 18px;
  }
  .hero-board { min-height: auto; border-radius: 28px; }
  .hero-board::after { display: none; }
  h1 { font-size: clamp(2.85rem, 15vw, 4.6rem); }
  h2 { font-size: clamp(2.05rem, 11vw, 3.2rem); }
  .portrait-sticker img { height: 390px; }
  .start-module { border-radius: 24px; }
  .featured-thumb { min-height: 220px; }
  .roadmap-item { grid-template-columns: 1fr; }
  .roadmap-number { font-size: 1rem; }
  .video-row, .reason-row, .topic-cloud, .reading-grid { grid-template-columns: 1fr; }
  .footer nav { justify-content: flex-start; }
}