:root {
  --bg: #fffdf5;
  --ink: #141414;
  --card: rgba(255, 255, 255, 0.76);
  --line: rgba(20, 20, 20, 0.1);
  --hot: #ff5f45;
  --cool: #06b6d4;
  --acid: #d5ff4f;
  --shadow: 0 12px 40px rgba(20, 20, 20, 0.12);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans TC", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 12% 10%, rgba(255, 95, 69, 0.18), transparent 24%),
    radial-gradient(circle at 88% 14%, rgba(6, 182, 212, 0.16), transparent 26%),
    linear-gradient(160deg, #fffef6, #fff8e8 42%, #f3feff 100%);
  line-height: 1.55;
  overflow-x: hidden;
}

.noise {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  opacity: 0.35;
  background-image: radial-gradient(rgba(20, 20, 20, 0.05) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
}

.orb {
  position: fixed;
  border-radius: 999px;
  filter: blur(80px);
  z-index: -2;
  pointer-events: none;
}

.orb-a {
  width: 320px;
  height: 320px;
  background: rgba(213, 255, 79, 0.45);
  top: -90px;
  right: -70px;
}

.orb-b {
  width: 280px;
  height: 280px;
  background: rgba(255, 95, 69, 0.28);
  bottom: -80px;
  left: -70px;
}

.site-header,
main,
.site-footer {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(20, 20, 20, 0.08);
  backdrop-filter: blur(12px);
}

.brand {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
}

.brand span {
  margin-left: 6px;
  color: rgba(20, 20, 20, 0.7);
}

.nav-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.nav-links a {
  color: rgba(20, 20, 20, 0.7);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ink);
}

.nav-cta {
  text-decoration: none;
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  background: var(--acid);
  border: 1px solid rgba(20, 20, 20, 0.16);
  padding: 9px 14px;
  border-radius: 999px;
}

main {
  padding: 56px 0 30px;
}

.hero {
  padding: 40px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 12px);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.74));
  box-shadow: var(--shadow);
}

.eyebrow {
  font-family: "Space Grotesk", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  margin: 0 0 10px;
  color: rgba(20, 20, 20, 0.68);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.9rem, 4.2vw, 3.4rem);
  font-weight: 900;
  max-width: 16ch;
}

h1 span {
  background: linear-gradient(92deg, #1f2937 0%, #ff5f45 45%, #0ea5e9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin: 16px 0 0;
  max-width: 65ch;
  font-size: 1.02rem;
  color: rgba(20, 20, 20, 0.78);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 10px 18px;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(90deg, var(--hot), #ff845f);
  color: #fff;
  box-shadow: 0 8px 20px rgba(255, 95, 69, 0.35);
}

.btn-ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
}

.pill-row {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill-row li {
  font-size: 0.82rem;
  border: 1px solid var(--line);
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
}

.panel {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 30px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: clamp(1.45rem, 2.6vw, 2.2rem);
  font-weight: 900;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card,
.module-card,
.mentor-card,
.qr-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
}

.card {
  padding: 18px;
}

.card h3 {
  font-size: 1.08rem;
  margin-bottom: 8px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.module-card {
  padding: 14px;
  position: relative;
  overflow: hidden;
}

.module-card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 999px;
  background: radial-gradient(circle at center, rgba(6, 182, 212, 0.16), transparent 70%);
  top: -42px;
  right: -36px;
}

.module-id {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  color: rgba(20, 20, 20, 0.45);
  margin: 0;
}

.module-card h3 {
  font-size: 1.05rem;
  margin: 6px 0;
}

.module-card p {
  margin: 0;
  color: rgba(20, 20, 20, 0.78);
  font-size: 0.94rem;
}

.mentor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.mentor-card {
  padding: 16px;
}

.mentor-card h3 {
  font-size: 1.12rem;
  margin-bottom: 6px;
}

.mentor-card p {
  margin: 0;
  color: rgba(20, 20, 20, 0.75);
  font-size: 0.92rem;
}

.apply {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  align-items: stretch;
}

.apply-copy p {
  margin: 0;
}

.apply-copy > p:nth-of-type(2) {
  margin-top: 12px;
  color: rgba(20, 20, 20, 0.78);
}

.apply-copy ol {
  margin: 16px 0 0;
  padding-left: 20px;
}

.apply-copy li {
  margin: 6px 0;
}

.qr-card {
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: linear-gradient(190deg, rgba(255, 255, 255, 0.96), rgba(213, 255, 79, 0.22));
}

.qr-label {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.qr-card img {
  margin-top: 10px;
  width: min(260px, 100%);
  border-radius: 16px;
  border: 1px solid var(--line);
}

.qr-url {
  margin: 14px 0 0;
  font-size: 0.8rem;
  word-break: break-all;
  color: rgba(20, 20, 20, 0.6);
}

.site-footer {
  padding: 22px 0 46px;
  text-align: center;
  color: rgba(20, 20, 20, 0.65);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr;
    border-radius: 20px;
    text-align: center;
    gap: 10px;
  }

  .nav-links {
    justify-content: center;
  }

  .hero,
  .panel {
    padding: 22px;
  }

  .overview-grid,
  .module-grid,
  .mentor-grid,
  .apply {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  main {
    padding-top: 24px;
  }

  .hero {
    border-radius: 22px;
  }

  .overview-grid,
  .module-grid,
  .mentor-grid,
  .apply {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: block;
  }

  .nav-cta {
    width: 100%;
  }
}