:root {
  --bg: #070b08;
  --bg-soft: #111a16;
  --panel: #171f1c;
  --text: #e9f5ef;
  --muted: #afc0b6;
  --green: #18b0a8;
  --green-soft: #60fff8;
  --border: rgba(80, 184, 200, 0.32);
  --glow: 0 0 0.45rem rgba(96, 255, 248, 0.3), 0 0 1.4rem rgba(0, 152, 144, 0.2);
  --radius: 18px;
}

@font-face {
  font-family: "HYWenHei";
  src: local("HYWenHei"), local("HY WenHei");
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  cursor: url("../assets/illustrations/mouse-pointer-48.png") 6 3, auto;
}

body {
  margin: 0;
  font-family: "Exo 2", "HYWenHei", "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--text);
  cursor: url("../assets/illustrations/mouse-pointer-48.png") 6 3, auto;
  background:
    radial-gradient(circle at 15% 15%, rgba(96, 255, 248, 0.11), transparent 25%),
    radial-gradient(circle at 85% 0%, rgba(0, 152, 144, 0.09), transparent 26%),
    linear-gradient(150deg, #050806 0%, #0a120d 45%, #060a08 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    repeating-linear-gradient(45deg, rgba(96, 255, 248, 0.05) 0 2px, transparent 2px 16px),
    repeating-linear-gradient(-45deg, rgba(0, 152, 144, 0.04) 0 2px, transparent 2px 20px);
  z-index: -2;
}

#particles {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
  text-align: center;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(5, 10, 7, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  gap: 1.4rem;
}

.brand {
  font-family: "HYWenHei", "Exo 2", sans-serif;
  display: inline-flex;
  align-items: center;
  line-height: 0;
  gap: 0;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--green-soft);
  text-shadow: 0 0 10px rgba(96, 255, 248, 0.5);
}

.brand-logo {
  width: auto;
  height: 42px;
  display: block;
  margin: 0;
  max-width: min(220px, 46vw);
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(96, 255, 248, 0.42));
}

.home-page .brand-logo {
  height: 58px;
  max-width: min(320px, 64vw);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
  flex: 1;
  gap: 1rem;
  align-items: center;
}

.nav-link {
  color: var(--muted);
  padding: 0.5rem 0.95rem;
  min-width: 110px;
  text-align: center;
  font-size: 1.02rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: 0.25s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text);
  border-color: var(--border);
  box-shadow: var(--glow);
}

.menu-btn {
  display: none;
  border: 1px solid var(--border);
  color: var(--green-soft);
  background: rgba(0, 152, 144, 0.12);
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
}

main {
  padding-bottom: 3rem;
}

.hero {
  padding: 0 0 0.75rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 3rem;
  justify-items: center;
}

.hero h1,
.page-title {
  font-family: "HYWenHei", "Exo 2", sans-serif;
  letter-spacing: 0.07em;
  font-size: clamp(2.5rem, 6.2vw, 5.2rem);
  margin: 0 0 1rem;
  color: #dcfffd;
  text-shadow: 0 0 20px rgba(96, 255, 248, 0.48);
}

.hero-secondary-logo {
  width: min(720px, 96vw);
  max-height: 320px;
  height: auto;
  margin: 0 auto;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(96, 255, 248, 0.46));
}

.hero .hero-secondary-logo + h1 {
  margin-top: 0;
}

.tagline {
  font-family: "Exo 2", "HYWenHei", sans-serif;
  font-size: clamp(1.15rem, 2.6vw, 1.55rem);
  color: var(--green-soft);
  margin: 0 auto 2rem;
  max-width: 54ch;
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 0 auto 2.3rem;
  display: grid;
  gap: 1rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.meta-list .meta-date {
  position: relative;
  width: fit-content;
  margin: 0 auto;
  color: #dcfffd;
  text-shadow: 0 0 0.5rem rgba(96, 255, 248, 0.35), 0 0 1.2rem rgba(0, 152, 144, 0.2);
  animation: text-shimmer 2.8s ease-in-out infinite;
}

.meta-list .meta-date::before {
  content: none;
}

@keyframes text-shimmer {
  0% {
    text-shadow: 0 0 0.4rem rgba(96, 255, 248, 0.25), 0 0 0.9rem rgba(0, 152, 144, 0.15);
  }

  50% {
    text-shadow: 0 0 0.7rem rgba(255, 255, 255, 0.55), 0 0 1.4rem rgba(96, 255, 248, 0.45);
  }

  100% {
    text-shadow: 0 0 0.4rem rgba(96, 255, 248, 0.25), 0 0 0.9rem rgba(0, 152, 144, 0.15);
  }
}

.button-row {
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.82rem 1.45rem;
  font-size: 1rem;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, rgba(0, 152, 144, 0.34), rgba(96, 255, 248, 0.12));
  color: #d4fffb;
  box-shadow: var(--glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.02);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 0 0.8rem rgba(96, 255, 248, 0.52), 0 0 2rem rgba(0, 152, 144, 0.28);
}

.hero-art {
  width: min(460px, 100%);
  margin: 0 auto;
  filter: drop-shadow(0 0 16px rgba(96, 255, 248, 0.36));
}

.anime-strip {
  margin-top: 1.6rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.anime-card {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(20, 28, 24, 0.9), rgba(17, 24, 21, 0.9));
}

.anime-card img {
  width: 100%;
  max-width: 160px;
  height: auto;
}

.anime-card p {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  margin-top: 3rem;
  padding: 3.2rem 1.2rem;
  position: relative;
}

.section::before {
  content: "";
  position: absolute;
  inset-inline: 12%;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(96, 255, 248, 0.66), transparent);
}

.section h2 {
  font-family: "HYWenHei", "Exo 2", sans-serif;
  text-transform: uppercase;
  font-size: clamp(1.3rem, 2.8vw, 2rem);
  margin-top: 0;
  color: var(--green-soft);
}

.section > p {
  max-width: 70ch;
  margin: 0.75rem auto 0;
  color: var(--muted);
}

.about-copy {
  max-width: 72ch;
  margin: 0.9rem auto 0;
  color: var(--muted);
  text-align: center;
  line-height: 1.75;
}

.about-copy p {
  margin: 0;
}

.about-copy p + p {
  margin-top: 0.95rem;
}

.text-highlight {
  color: var(--green-soft);
  font-weight: 700;
  text-shadow: 0 0 10px rgba(96, 255, 248, 0.35);
}

.grid {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.6rem;
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.panel,
.timeline-item,
.faq-item {
  background:
    linear-gradient(150deg, rgba(11, 18, 14, 0.98), rgba(14, 24, 18, 0.96)),
    repeating-linear-gradient(130deg, rgba(96, 255, 248, 0.05) 0 12px, transparent 12px 24px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 0 0.4rem rgba(80, 184, 200, 0.24);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.prize-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1rem;
}

.prize-hero {
  margin: 0.9rem auto 0;
  max-width: 780px;
  padding: 1.1rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 217, 100, 0.46);
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 217, 100, 0.16), transparent 42%),
    linear-gradient(155deg, rgba(33, 33, 30, 0.96), rgba(22, 23, 21, 0.95));
  box-shadow: 0 0 1.1rem rgba(255, 217, 100, 0.2);
}

.prize-amount {
  margin: 0;
  line-height: 1;
  font-size: clamp(2.2rem, 8vw, 5.2rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #ffe9a6;
  text-shadow: 0 0 18px rgba(255, 217, 100, 0.32);
  font-family: "HYWenHei", "Exo 2", sans-serif;
}

.prize-hero-note {
  margin: 0.45rem 0 0;
  color: #f6e7bf;
  font-size: 0.95rem;
}

.prize-card {
  border: 1px solid rgba(255, 217, 100, 0.36);
  border-radius: var(--radius);
  padding: 0.85rem 0.7rem;
  background: linear-gradient(155deg, rgba(33, 33, 30, 0.94), rgba(22, 23, 21, 0.94));
  box-shadow: 0 0 1rem rgba(255, 217, 100, 0.14);
}

.prize-card h3 {
  margin: 0;
  color: #f4d582;
  font-family: "HYWenHei", "Exo 2", sans-serif;
}

.prize-card p {
  margin: 0.22rem 0 0;
  color: #fff6d8;
  font-weight: 700;
  font-size: 1.02rem;
}

.prize-note {
  margin: 0.85rem auto 0;
  max-width: 72ch;
  font-size: 0.9rem;
  color: var(--muted);
}

.prize-note a {
  color: var(--green-soft);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}

.track-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}

.track-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  background: linear-gradient(160deg, rgba(19, 27, 23, 0.95), rgba(14, 21, 18, 0.95));
  text-align: left;
}

.track-card h3 {
  margin: 0;
  color: var(--green-soft);
  font-family: "HYWenHei", "Exo 2", sans-serif;
}

.track-card p {
  margin: 0.55rem 0 0;
  color: var(--muted);
}

.panel:hover,
.timeline-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 0.7rem rgba(96, 255, 248, 0.4), 0 0 1.8rem rgba(0, 152, 144, 0.24);
}

.faq-item:hover {
  box-shadow: 0 0 0.7rem rgba(96, 255, 248, 0.4), 0 0 1.8rem rgba(0, 152, 144, 0.24);
}

.panel h3,
.timeline-item h3 {
  margin-top: 0;
  color: var(--green-soft);
  font-family: "HYWenHei", "Exo 2", sans-serif;
  font-size: 1rem;
}

.timeline {
  position: relative;
  display: grid;
  gap: 1.15rem;
  max-width: 980px;
  margin: 1.4rem auto 0;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: linear-gradient(180deg, rgba(96, 255, 248, 0.1), rgba(96, 255, 248, 0.75), rgba(96, 255, 248, 0.12));
}

.timeline-item {
  position: relative;
  width: calc(50% - 1.8rem);
  text-align: left;
}

.timeline-item:nth-child(odd) {
  margin-right: auto;
}

.timeline-item:nth-child(even) {
  margin-left: auto;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 1.3rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle, #dcfffd 10%, var(--green-soft) 45%, #058f88 100%);
  box-shadow: 0 0 0.65rem rgba(96, 255, 248, 0.75);
}

.timeline-item:nth-child(odd)::before {
  right: -2.25rem;
}

.timeline-item:nth-child(even)::before {
  left: -2.25rem;
}

.timeline-item p {
  margin: 0;
  color: var(--text);
}

.time {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.55rem;
  padding: 0.18rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(96, 255, 248, 0.36);
  background: rgba(0, 152, 144, 0.1);
  font-family: "Exo 2", "HYWenHei", sans-serif;
  font-size: 0.82rem;
  color: #d9fffc;
}

.sponsor-card {
  display: grid;
  place-items: center;
  min-height: 135px;
  padding: 1rem;
}

.sponsor-card img {
  width: auto;
  max-width: min(92%, 340px);
  max-height: 72px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(80, 184, 200, 0.38));
}

.faq-item {
  text-align: left;
}

.faq-btn {
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  text-align: left;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.2rem 0;
  cursor: pointer;
  touch-action: manipulation;
}

.faq-btn * {
  pointer-events: none;
}

body * {
  cursor: url("../assets/illustrations/mouse-pointer-48.png") 6 3, auto;
}

a,
button,
.btn,
.menu-btn,
.nav-link,
.faq-btn {
  cursor: url("../assets/illustrations/mouse-pointer-48.png") 6 3, pointer;
}

.faq-answer {
  color: var(--muted);
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.22s ease;
}

.faq-answer > * {
  overflow: hidden;
  margin: 0;
}

.faq-item.open .faq-answer {
  grid-template-rows: 1fr;
  margin-top: 0.65rem;
}

.faq-note {
  margin: 1.1rem auto 0;
  max-width: 70ch;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(96, 255, 248, 0.28);
  border-radius: 12px;
  background: rgba(0, 152, 144, 0.1);
  color: var(--muted);
  text-align: center;
}

.faq-note a {
  color: var(--green-soft);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

.site-footer {
  padding: 2.2rem 0;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  text-align: center;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.footer-links a:hover {
  color: var(--green-soft);
}

.page-hero {
  padding: 3rem 0 1.2rem;
}

.centered-copy {
  max-width: 70ch;
  margin-inline: auto;
}

@media (max-width: 980px) {
  .hero-grid,
  .prize-grid,
  .track-grid,
  .anime-strip,
  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 720px) {
  .menu-btn {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(9, 14, 12, 0.98);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .hero-grid,
  .prize-grid,
  .track-grid,
  .anime-strip,
  .grid-4,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 0 0 0.5rem;
  }

  .brand-logo {
    height: 34px;
  }

  .home-page .brand-logo {
    height: 44px;
    max-width: min(260px, 78vw);
  }

  .hero-secondary-logo {
    width: min(460px, 96vw);
    max-height: 230px;
  }

  .timeline::before {
    left: 12px;
    transform: none;
  }

  .timeline-item {
    width: calc(100% - 2rem);
    margin-left: 2rem !important;
    margin-right: 0 !important;
  }

  .timeline-item::before,
  .timeline-item:nth-child(odd)::before,
  .timeline-item:nth-child(even)::before {
    left: -1.55rem;
    right: auto;
  }
}

.home-page .hero {
  padding-top: 2.4rem !important;
  margin-top: 0 !important;
}

.home-page .hero .hero-secondary-logo {
  width: min(680px, 92vw) !important;
  max-height: 300px !important;
  margin-top: 0 !important;
}

.home-page .hero h1 {
  font-size: clamp(2rem, 4.8vw, 3.8rem) !important;
}

@media (max-width: 720px) {
  .home-page .hero {
    padding-top: 1.8rem !important;
  }

  .home-page .hero .hero-secondary-logo {
    width: min(420px, 92vw) !important;
    max-height: 220px !important;
    margin-top: 0 !important;
  }

  .home-page .hero h1 {
    font-size: clamp(1.4rem, 6vw, 2.2rem) !important;
  }
}

.home-page .site-header .nav-wrap {
  min-height: 62px !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}

.home-page .site-header .brand-logo {
  height: 52px !important;
}

@media (max-width: 720px) {
  .home-page .site-header .nav-wrap {
    min-height: 52px !important;
  }

  .home-page .site-header .brand-logo {
    height: 42px !important;
  }
}

body.Certificates {
  height: 100vh;
  overflow: hidden;
  margin: 0;
}

.cert-wrapper {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.glow-left {
  background: rgba(96,255,248,0.15);
  top: -120px;
  left: -120px;
}

.glow-right {
  background: rgba(0,152,144,0.15);
  bottom: -120px;
  right: -120px;
}

.cert-card {
  padding: 26px;
  border-radius: 20px;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(16px);
  text-align: center;
  box-shadow: 0 0 20px rgba(96,255,248,0.15);
}

/* TEXT */
.cert-title {
  font-size: 26px;
  margin-bottom: 10px;
  color: #dcfffd;
}

.cert-subtitle {
  font-size: 13px;
  color: #60fff8;
  margin-bottom: 18px;
  line-height: 1.4;
}

/* INPUT */
.cert-input {
  width: 100%;
  padding: 13px;
  border-radius: 12px;
  border: none;
  background: #0c1512;
  color: #e9f5ef;
  margin-bottom: 14px;
  font-size: 14px;
  outline: none;
}

.cert-btn:hover {
  background: rgba(0,152,144,0.6);
}

/* RESULT */
.result-box {
  margin-top: 16px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
}

.success-text {
  color: #60fff8;
}

.error-text {
  color: #ff6b6b;
  margin-top: 10px;
  font-size: 14px;
}

.warning-text {
  color: #ffd166;
  margin-top: 10px;
  font-size: 14px;
}

/* UTIL */
.hidden {
  display: none;
}