:root {
  /* Brand Colors extracted from Sample Poster & Organizer Guidelines */
  --crimson-700: #900311;
  --crimson-600: #bd0417;
  --crimson-500: #df1e33;
  --crimson-soft: #fff1f2;

  --navy-950: #06132e;
  --navy-900: #071a45;
  --royal-800: #093795;
  --blue-600: #1565d8;
  --blue-500: #307fd2;
  --sky-400: #7dc2fc;
  --sky-200: #cfe6ff;
  --sky-100: #eaf3ff;
  --sky-50: #f5f9ff;

  --gold-500: #f5be57;
  --gold-600: #c8830d;
  --fpt-orange: #f26f21;
  --doan-green: #007a3d;

  /* Neutrals */
  --bg: #f6f9ff;
  --surface: #ffffff;
  --ink: #0a1b3d;
  --ink-body: #2d4066;
  --ink-muted: #52658a;
  --edge: rgba(9, 55, 149, 0.14);
  --edge-strong: rgba(9, 55, 149, 0.25);

  /* Typography */
  --f: "Be Vietnam Pro", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;

  /* Gradients */
  --grad-brand: linear-gradient(105deg, #093795 0%, #1565d8 48%, #bd0417 100%);
  --grad-crimson: linear-gradient(115deg, #a30414 0%, #df1e33 100%);
  --grad-gold: linear-gradient(105deg, #ffe29f 0%, #f5be57 55%, #f26f21 100%);
  --shadow-soft: 0 14px 40px rgba(7, 26, 69, 0.08);
  --shadow-card: 0 20px 52px rgba(9, 55, 149, 0.11);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  font-family: var(--f);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
}

::selection {
  background: var(--crimson-600);
  color: #ffffff;
}

.container {
  width: min(1190px, calc(100% - 48px));
  margin: 0 auto;
}

/* Reading Progress Bar */
.page-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3.5px;
  z-index: 120;
  background: linear-gradient(90deg, var(--royal-800), var(--blue-500) 40%, var(--gold-500) 70%, var(--crimson-600));
  transition: width 0.08s ease-out;
}

.bg-ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 6% 14%, rgba(125, 194, 252, 0.25), transparent 36%),
    radial-gradient(circle at 95% 42%, rgba(189, 4, 23, 0.06), transparent 32%);
}

.page-wrapper {
  position: relative;
}

/* ================= STICKY HEADER ================= */
.header {
  position: sticky;
  top: 0;
  z-index: 90;
  height: 80px;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--edge);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: box-shadow 0.25s ease;
}

.header.scrolled {
  box-shadow: 0 10px 30px rgba(7, 26, 69, 0.08);
}

.nav-wrap {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  padding: 5px;
  background: linear-gradient(145deg, #ffffff, #eaf3ff);
  border: 1px solid rgba(9, 55, 149, 0.18);
  box-shadow: 0 6px 16px rgba(9, 55, 149, 0.1);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--royal-800);
  line-height: 1.2;
}

.brand-title em {
  font-style: normal;
  color: var(--crimson-600);
}

.brand-sub {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-top: 2px;
}

.brand-sub b {
  color: var(--fpt-orange);
  margin: 0 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.nav-links a {
  position: relative;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-body);
  white-space: nowrap;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--crimson-600);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 22px;
  height: 2.5px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--crimson-600), var(--royal-800));
}

.nav-action {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 8px;
}

.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--sky-50);
  border: 1px solid var(--edge-strong);
  place-items: center;
  align-content: center;
  gap: 5px;
  cursor: pointer;
}

.menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--royal-800);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ================= BUTTONS ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 10px;
  border: 1.5px solid transparent;
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-small {
  min-height: 40px;
  padding: 0 16px;
  font-size: 12px;
  border-radius: 9px;
}

.btn-crimson {
  background: var(--grad-crimson);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 10px 26px rgba(189, 4, 23, 0.28);
}

.btn-crimson:hover {
  box-shadow: 0 14px 34px rgba(189, 4, 23, 0.38);
}

.btn-royal-outline {
  background: rgba(255, 255, 255, 0.9);
  color: var(--royal-800);
  border-color: rgba(9, 55, 149, 0.28);
  box-shadow: 0 6px 18px rgba(9, 55, 149, 0.07);
}

.btn-royal-outline:hover {
  background: var(--sky-100);
  border-color: var(--royal-800);
}

.btn-outline {
  background: #ffffff;
  color: var(--ink);
  border-color: var(--edge-strong);
}

.btn-outline:hover {
  background: var(--sky-50);
  border-color: var(--royal-800);
  color: var(--royal-800);
}

.btn-light-outline {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-light-outline:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #ffffff;
}

/* ================= SHARED TYPOGRAPHY ================= */
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--crimson-600);
}

.section-kicker::before {
  content: "";
  width: 24px;
  height: 2.5px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--crimson-600), var(--royal-800));
}

.section-kicker--light {
  color: var(--gold-500);
}

.section-kicker--light::before {
  background: linear-gradient(90deg, var(--gold-500), var(--sky-400));
}

.title {
  margin: 0;
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--navy-950);
}

.title--light {
  color: #ffffff;
}

.gradient {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.gradient-gold {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 0;
  color: var(--ink-body);
  font-size: 15px;
  line-height: 1.8;
}

.lead--light {
  color: rgba(235, 244, 255, 0.84);
}

/* ================= HERO SECTION ================= */
.hero {
  position: relative;
  isolation: isolate;
  background: linear-gradient(180deg, #cbe4ff 0%, #e7f2ff 44%, #ffffff 100%);
  overflow: hidden;
}

.hero-sky-glow {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse at 72% 28%, rgba(245, 190, 87, 0.25), transparent 46%),
    radial-gradient(ellipse at 14% 20%, rgba(48, 127, 210, 0.2), transparent 42%);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(9, 55, 149, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(9, 55, 149, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 90%);
}

.hero-petal {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

.hero-petal--tl {
  top: -12px;
  left: -18px;
  width: 220px;
}

.hero-container {
  position: relative;
  z-index: 2;
  padding: 28px 0 56px;
}

/* Organizer Crest Strip */
.hero-organizers {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 8px 18px;
  margin-bottom: 30px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(9, 55, 149, 0.16);
  border-radius: 999px;
  box-shadow: 0 8px 26px rgba(9, 55, 149, 0.08);
}

.org-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--royal-800);
}

.org-pill-logo--doan {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.org-pill-logo--fpt {
  height: 26px;
  width: auto;
  object-fit: contain;
  border-radius: 4px;
}

.org-divider {
  width: 1px;
  height: 20px;
  background: rgba(9, 55, 149, 0.22);
}

/* Hero Split Layout */
.hero-split {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 44px;
  align-items: center;
}

.hero-copy,
.hero-visual,
.count-layout > *,
.intro-layout > *,
.rules-layout > *,
.prize-card > *,
.roadmap-card,
.register-panel {
  min-width: 0;
}

.hero-ribbon {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 14px;
  border-radius: 8px;
  background: var(--crimson-600);
  color: #ffffff;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: 0 8px 20px rgba(189, 4, 23, 0.26);
}

.ribbon-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 10px var(--gold-500);
}

.hero-title {
  margin: 18px 0 8px;
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.hero-title-red {
  display: block;
  font-size: clamp(32px, 4vw, 48px);
  color: var(--crimson-600);
}

.hero-title-blue {
  display: inline-block;
  font-size: clamp(40px, 5.2vw, 64px);
  color: var(--royal-800);
  margin-right: 10px;
}

.hero-title-year {
  display: inline-block;
  font-size: clamp(36px, 4.6vw, 56px);
  font-style: italic;
  color: var(--crimson-600);
}

.hero-slogan {
  margin: 4px 0 16px;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 800;
  color: var(--royal-800);
  font-style: italic;
}

.hero-desc {
  margin: 0 0 22px;
  color: var(--ink-body);
  font-size: 15px;
  line-height: 1.75;
  max-width: 550px;
}

.hero-specs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 26px;
}

.spec-chip {
  padding: 11px 12px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(9, 55, 149, 0.16);
  border-radius: 11px;
  box-shadow: 0 6px 18px rgba(9, 55, 149, 0.06);
}

.spec-chip strong {
  display: block;
  font-size: 13.5px;
  font-weight: 800;
  color: var(--royal-800);
}

.spec-chip span {
  display: block;
  font-size: 11px;
  color: var(--ink-muted);
  margin-top: 2px;
}

.spec-chip--gold {
  border-color: rgba(189, 4, 23, 0.25);
  background: linear-gradient(135deg, #ffffff, #fff6f7);
}

.spec-chip--gold strong {
  color: var(--crimson-600);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Poster Showcase Frame */
.hero-visual {
  position: relative;
}

.poster-frame {
  position: relative;
  padding: 14px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.94);
  border: 1.5px solid rgba(9, 55, 149, 0.2);
  box-shadow:
    0 28px 65px rgba(9, 55, 149, 0.18),
    0 0 0 6px rgba(255, 255, 255, 0.55);
}

.poster-frame-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.frame-badge {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--royal-800);
  background: var(--sky-100);
  padding: 4px 10px;
  border-radius: 99px;
}

.frame-zoom-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--edge);
  background: #ffffff;
  color: var(--ink-body);
  padding: 5px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.frame-zoom-btn:hover {
  border-color: var(--royal-800);
  color: var(--royal-800);
}

.frame-zoom-btn svg {
  width: 13px;
  height: 13px;
}

.poster-img-trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: 14px;
  overflow: hidden;
  cursor: zoom-in;
  background: var(--sky-100);
}

.poster-img-trigger img {
  width: 100%;
  height: auto;
  transition: transform 0.35s ease;
}

.poster-img-trigger:hover img {
  transform: scale(1.02);
}

.poster-float {
  position: absolute;
  padding: 9px 13px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 28px rgba(7, 26, 69, 0.14);
  backdrop-filter: blur(8px);
}

.poster-float .pf-kicker {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.poster-float strong {
  display: block;
  font-size: 12px;
  font-weight: 800;
  color: var(--navy-950);
  margin-top: 2px;
}

.poster-float--blue {
  left: -14px;
  bottom: 24px;
  border: 1.5px solid rgba(21, 101, 216, 0.32);
}

.poster-float--blue .pf-kicker {
  color: var(--blue-600);
}

.poster-float--red {
  right: -12px;
  bottom: -14px;
  border: 1.5px solid rgba(189, 4, 23, 0.3);
}

.poster-float--red .pf-kicker {
  color: var(--crimson-600);
}

.hero-wave {
  position: relative;
  height: 44px;
  margin-top: -10px;
}

.hero-wave svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Signature Divider Caption Bar */
.hero-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  position: relative;
  padding: 18px max(24px, calc((100vw - 1190px) / 2));
  background: linear-gradient(90deg, #071a45 0%, #093795 52%, #8e0615 100%);
  color: #f0f6ff;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.hero-caption::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sky-400), var(--gold-500) 50%, var(--crimson-500));
}

.hero-caption > span {
  display: flex;
  align-items: center;
  gap: 10px;
}

.signal {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 12px var(--gold-500);
  flex-shrink: 0;
  animation: pulse 2.2s infinite;
}

.hero-caption a {
  color: #ffffff;
  text-decoration: none;
  font-family: var(--f);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.hero-caption a b {
  color: var(--gold-500);
  font-size: 16px;
}

/* ================= COUNTDOWN SECTION ================= */
.countdown-section {
  padding: 76px 0 44px;
  background: #ffffff;
}

.count-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.15fr;
  gap: 48px;
  align-items: center;
}

.count-description {
  margin: 16px 0 22px;
  max-width: 470px;
}

.date-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 15px;
  border: 1px solid rgba(9, 55, 149, 0.2);
  border-radius: 9px;
  background: var(--sky-50);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--royal-800);
}

.date-line svg {
  width: 17px;
  height: 17px;
  color: var(--crimson-600);
}

.count-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* Split-tone Countdown Card */
.timer-wrap {
  position: relative;
  padding: 28px;
  border-radius: 20px;
  background: linear-gradient(125deg, #071a45 0%, #0b2459 50%, #3d0919 100%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow-card);
  color: #ffffff;
}

.timer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--sky-400);
}

.timer-top span:last-child {
  color: rgba(255, 255, 255, 0.68);
}

.count-boxes {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.count-cell {
  position: relative;
  padding: 20px 6px 16px;
  text-align: center;
  border-radius: 12px;
  overflow: hidden;
}

.count-cell::before {
  content: "";
  position: absolute;
  top: 0;
  left: 16%;
  right: 16%;
  height: 2.5px;
}

.count-cell--blue {
  background: linear-gradient(160deg, rgba(21, 101, 216, 0.45), rgba(7, 26, 69, 0.92));
  border: 1px solid rgba(125, 194, 252, 0.34);
}

.count-cell--blue::before {
  background: linear-gradient(90deg, transparent, var(--sky-400), transparent);
}

.count-cell--red {
  background: linear-gradient(160deg, rgba(189, 4, 23, 0.52), rgba(55, 6, 18, 0.94));
  border: 1px solid rgba(245, 190, 87, 0.36);
}

.count-cell--red::before {
  background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
}

.count-number {
  display: block;
  font-size: clamp(28px, 3.8vw, 48px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: #ffffff;
}

.count-label {
  display: block;
  margin-top: 8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: #bfe0ff;
}

.count-cell--red .count-label {
  color: #ffd3d8;
}

.timer-hint {
  margin: 18px 0 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  line-height: 1.65;
  color: rgba(235, 244, 255, 0.8);
}

.timer-hint svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--gold-500);
}

/* ================= STATS RIBBON ================= */
.stats {
  padding: 8px 0 72px;
  background: #ffffff;
}

.stats-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat {
  padding: 22px 20px;
  border-radius: 14px;
  border: 1px solid var(--edge);
  background: var(--sky-50);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.stat--blue {
  border-top: 3px solid var(--royal-800);
}

.stat--red {
  background: #fff6f7;
  border-color: rgba(189, 4, 23, 0.16);
  border-top: 3px solid var(--crimson-600);
}

.stat-num {
  display: block;
  font-size: 32px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--navy-950);
  margin-bottom: 8px;
}

.stat--blue .plus {
  color: var(--blue-600);
  font-size: 20px;
  margin-left: 2px;
}

.stat--red .plus {
  color: var(--crimson-600);
  font-size: 20px;
  margin-left: 2px;
}

.stat-desc {
  display: block;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink-muted);
}

/* ================= ABOUT SECTION ================= */
.intro {
  padding: 84px 0;
  background: linear-gradient(180deg, #f3f7ff 0%, #ffffff 100%);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

.intro-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items: center;
}

.intro-description {
  margin: 18px 0 24px;
}

.bullets {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.chip--blue {
  background: #e8f1ff;
  border: 1px solid rgba(9, 55, 149, 0.2);
  color: var(--royal-800);
}

.chip--red {
  background: #ffeef0;
  border: 1px solid rgba(189, 4, 23, 0.2);
  color: var(--crimson-700);
}

/* Interactive Blueprint Visual Card */
.intro-visual {
  margin: 0;
  padding: 22px;
  border-radius: 20px;
  background: #ffffff;
  border: 1.5px solid rgba(9, 55, 149, 0.18);
  box-shadow: var(--shadow-card);
}

.visual-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.visual-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  color: var(--royal-800);
}

.dot-gold {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fpt-orange);
}

.visual-scale {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--crimson-600);
  background: var(--crimson-soft);
  padding: 4px 10px;
  border-radius: 99px;
}

.blueprint-stage {
  border-radius: 14px;
  background:
    linear-gradient(rgba(9, 55, 149, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(9, 55, 149, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, #f4f8ff, #ffffff);
  background-size: 24px 24px;
  border: 1px solid rgba(9, 55, 149, 0.12);
  padding: 12px;
}

.blueprint-svg {
  width: 100%;
  height: auto;
}

.pillar-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 12px;
}

.pillar-tab {
  padding: 7px 11px;
  border-radius: 8px;
  border: 1px solid var(--edge);
  background: var(--sky-50);
  color: var(--ink-body);
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pillar-tab:hover {
  border-color: var(--royal-800);
  color: var(--royal-800);
}

.pillar-tab.active {
  background: var(--royal-800);
  border-color: var(--royal-800);
  color: #ffffff;
}

.pillar-detail {
  padding: 12px 14px;
  border-radius: 10px;
  background: #f8faff;
  border-left: 3px solid var(--crimson-600);
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-body);
  min-height: 66px;
}

.visual-caption {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--edge);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--ink-muted);
}

.visual-caption a {
  font-weight: 800;
  color: var(--crimson-600);
  text-decoration: none;
  white-space: nowrap;
}

/* ================= TIMELINE / JOURNEY SECTION ================= */
.journey--timeline {
  position: relative;
  padding: 84px 0 72px;
  background:
    linear-gradient(rgba(9, 55, 149, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(9, 55, 149, 0.035) 1px, transparent 1px),
    #f7faff;
  background-size: 64px 64px;
}

.journey-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 48px;
}

.journey-header .section-kicker {
  justify-content: center;
}

.journey-header .lead {
  max-width: 650px;
  margin: 14px auto 0;
}

.journey-period {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 18px;
  padding: 8px 16px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid var(--edge-strong);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  box-shadow: 0 6px 18px rgba(9, 55, 149, 0.06);
}

.journey-period > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--crimson-600);
}

.journey-period b {
  color: var(--royal-800);
}

.roadmap {
  position: relative;
  list-style: none;
  padding: 10px 0 20px;
  margin: 0 auto;
  max-width: 1080px;
}

.roadmap::before {
  content: "";
  position: absolute;
  left: calc(50% - 1.5px);
  top: 0;
  bottom: 0;
  width: 3px;
  border-radius: 99px;
  background: linear-gradient(180deg, var(--royal-800), var(--fpt-orange) 52%, var(--crimson-600));
}

.roadmap-stop {
  --stop: var(--royal-800);
  --stop-soft: rgba(9, 55, 149, 0.16);
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 108px minmax(0, 1fr);
  align-items: start;
  margin-bottom: 26px;
}

.roadmap-stop:last-child {
  margin-bottom: 0;
}

.roadmap-stop--gold {
  --stop: #d96b12;
  --stop-soft: rgba(242, 111, 33, 0.18);
}

.roadmap-stop--crimson {
  --stop: var(--crimson-600);
  --stop-soft: rgba(189, 4, 23, 0.18);
}

.roadmap-node {
  position: absolute;
  z-index: 2;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #ffffff;
  border: 3px solid var(--stop);
  color: var(--stop);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 0 0 6px #f7faff, 0 8px 20px var(--stop-soft);
}

.roadmap-stop::before {
  content: "";
  position: absolute;
  top: 82px;
  left: calc(50% - 54px);
  width: 54px;
  height: 2px;
  background: linear-gradient(90deg, var(--stop-soft), var(--stop));
}

.roadmap-stop:nth-child(even)::before {
  left: 50%;
  background: linear-gradient(90deg, var(--stop), var(--stop-soft));
}

.roadmap-card {
  grid-column: 1;
  grid-row: 1;
  background: #ffffff;
  border: 1.5px solid var(--edge);
  border-top: 4px solid var(--stop);
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.roadmap-stop:nth-child(even) .roadmap-card {
  grid-column: 3;
}

.roadmap-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.roadmap-card summary {
  display: block;
  padding: 24px 26px 22px;
  cursor: pointer;
  list-style: none;
  position: relative;
}

.roadmap-card summary::-webkit-details-marker {
  display: none;
}

.roadmap-date {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--stop);
  margin-bottom: 10px;
}

.roadmap-round {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  margin-bottom: 6px;
}

.roadmap-round span {
  color: var(--stop);
  margin: 0 4px;
}

.roadmap-card h3 {
  margin: 0 0 8px;
  font-size: 23px;
  font-weight: 900;
  line-height: 1.25;
  color: var(--navy-950);
}

.roadmap-format {
  display: block;
  font-size: 13px;
  color: var(--ink-muted);
}

.roadmap-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 12px;
  font-weight: 800;
  color: var(--stop);
}

.roadmap-chevron {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.roadmap-card[open] .roadmap-chevron {
  transform: rotate(180deg);
}

.roadmap-card .when-open {
  display: none;
}

.roadmap-card[open] .when-open {
  display: inline;
}

.roadmap-card[open] .when-closed {
  display: none;
}

.roadmap-content {
  padding: 0 26px 24px;
  border-top: 1px solid var(--edge);
  padding-top: 16px;
  font-size: 13.5px;
  color: var(--ink-body);
}

.roadmap-content p {
  margin: 0 0 10px;
}

.roadmap-content ul {
  margin: 0 0 14px;
  padding-left: 18px;
}

.roadmap-content li {
  margin-bottom: 6px;
}

.roadmap-link {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 800;
  color: var(--stop);
  text-decoration: none;
}

.roadmap-link:hover {
  text-decoration: underline;
}

.roadmap-caption {
  grid-column: 3;
  grid-row: 1;
  padding: 58px 18px 0;
}

.roadmap-stop:nth-child(even) .roadmap-caption {
  grid-column: 1;
  text-align: right;
}

.roadmap-caption span {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--stop);
  margin-bottom: 6px;
}

.roadmap-caption p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-muted);
}

.journey-note {
  margin: 28px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--ink-muted);
}

/* ================= RULES & SCORING SECTION (HIGH-CONTRAST NAVY BAND) ================= */
.rules {
  padding: 88px 0;
  background:
    radial-gradient(ellipse at 95% 20%, rgba(189, 4, 23, 0.24), transparent 48%),
    radial-gradient(ellipse at 5% 80%, rgba(48, 127, 210, 0.24), transparent 50%),
    var(--navy-900);
  color: #ffffff;
}

.rules-layout {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 56px;
  align-items: start;
}

.rules-description {
  margin: 16px 0 24px;
}

.rule-glow {
  margin-top: 28px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(125, 194, 252, 0.24);
}

.rule-symbol {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--gold-500);
  color: var(--navy-950);
  font-weight: 900;
  font-size: 18px;
}

.rule-glow strong {
  display: block;
  font-size: 13.5px;
  color: #ffffff;
}

.rule-glow p {
  margin: 4px 0 0;
  font-size: 12.5px;
  color: rgba(235, 244, 255, 0.78);
}

/* 100-Point Scoring Matrix */
.scoring-card {
  margin-top: 20px;
  padding: 20px;
  border-radius: 16px;
  background: rgba(6, 19, 46, 0.65);
  border: 1px solid rgba(125, 194, 252, 0.22);
}

.scoring-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--sky-400);
  margin-bottom: 14px;
}

.scoring-head strong {
  color: var(--gold-500);
}

.scoring-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.score-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12.5px;
  color: #ebf3ff;
  margin-bottom: 5px;
}

.score-row b {
  font-family: var(--mono);
  color: var(--gold-500);
}

.score-bar {
  height: 7px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.score-bar span {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--sky-400), var(--gold-500), var(--crimson-500));
}

/* FAQ Accordion */
.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(125, 194, 252, 0.22);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.faq details[open] {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(245, 190, 87, 0.6);
}

.faq summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  font-size: 14px;
  font-weight: 800;
  color: #ffffff;
  cursor: pointer;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.qnum {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gold-500);
  flex-shrink: 0;
}

.qtitle {
  flex: 1;
}

.chev {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.1);
  color: var(--sky-400);
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq details[open] .chev {
  transform: rotate(45deg);
  color: var(--gold-500);
}

.faq .answer {
  padding: 0 20px 18px 48px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(235, 244, 255, 0.86);
}

.faq .answer p {
  margin: 0;
}

/* ================= PRIZES SECTION ================= */
.prizes {
  padding: 76px 0 34px;
  background: var(--bg);
}

.prize-card {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  padding: 40px;
  display: grid;
  grid-template-columns: 0.9fr 1.25fr;
  gap: 32px;
  align-items: center;
  background: linear-gradient(120deg, #093795 0%, #102a68 48%, #900311 100%);
  color: #ffffff;
  box-shadow: 0 26px 60px rgba(9, 55, 149, 0.22);
}

.prize-sub {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(240, 246, 255, 0.88);
}

.prize-items {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.prize-item {
  text-align: center;
  padding: 20px 10px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
}

.prize-item--first {
  background: linear-gradient(160deg, rgba(245, 190, 87, 0.25), rgba(255, 255, 255, 0.12));
  border-color: var(--gold-500);
}

.prize-quantity {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.15;
  color: #ffffff;
}

.prize-item--first .prize-quantity {
  color: var(--gold-500);
}

.prize-name {
  margin-top: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #ffffff;
}

.prize-note {
  display: block;
  margin-top: 6px;
  font-size: 10.5px;
  color: rgba(235, 244, 255, 0.82);
}

.prize-highlight-bar {
  margin-top: 14px;
  padding: 13px 16px;
  border-radius: 12px;
  background: rgba(6, 19, 46, 0.45);
  border: 1px solid rgba(245, 190, 87, 0.45);
  display: flex;
  align-items: center;
  gap: 12px;
}

.phb-badge {
  flex-shrink: 0;
  padding: 4px 10px;
  border-radius: 99px;
  background: var(--gold-500);
  color: var(--navy-950);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
}

.prize-highlight-bar p {
  margin: 0;
  font-size: 12.5px;
  color: #f4f8ff;
}

/* ================= REGISTRATION SECTION ================= */
.register-section {
  padding: 50px 0 72px;
  background: var(--bg);
}

.register-panel {
  position: relative;
  border-radius: 24px;
  padding: 46px 42px;
  background: #ffffff;
  border: 1.5px solid rgba(9, 55, 149, 0.18);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.register-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--royal-800), var(--sky-400) 45%, var(--gold-500) 70%, var(--crimson-600));
}

.register-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 28px;
}

.register-header .section-kicker {
  justify-content: center;
}

.register-header .lead {
  margin-top: 10px;
}

.register-req-note {
  margin: 8px 0 0;
  font-size: 12.5px;
  color: var(--ink-muted);
}

.req {
  color: var(--crimson-600);
  font-weight: 800;
}

.preview-notice {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  margin-bottom: 28px;
  border-radius: 10px;
  background: var(--sky-50);
  border: 1px dashed rgba(9, 55, 149, 0.3);
  font-size: 12.5px;
  color: var(--ink-body);
}

.preview-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--royal-800);
  flex-shrink: 0;
}

.form-group-block {
  margin-bottom: 26px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--edge);
}

.form-group-block:last-of-type {
  border-bottom: 0;
  margin-bottom: 10px;
  padding-bottom: 0;
}

.block-title {
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--royal-800);
}

.step-number {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--royal-800);
  color: #ffffff;
  font-family: var(--mono);
  font-size: 12px;
}

.form-group-block:nth-child(3) .step-number {
  background: var(--crimson-600);
}

.participation-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.switch-option {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1.5px solid var(--edge-strong);
  background: var(--sky-50);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
}

.switch-option input {
  accent-color: var(--crimson-600);
  width: 16px;
  height: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.field-col {
  display: flex;
  flex-direction: column;
}

.field-col.full-width {
  grid-column: 1 / -1;
}

.field-col.hidden-field {
  display: none;
}

.submission-portal-card {
  margin: 24px auto 0;
  padding: 18px 22px;
  border-radius: 14px;
  background: linear-gradient(120deg, #f3f7ff 0%, #fff7f8 100%);
  border: 1px solid rgba(9, 55, 149, 0.16);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  text-align: left;
}

.spc-kicker {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--crimson-600);
  margin-bottom: 4px;
}

.spc-text p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-body);
}

@media (max-width: 720px) {
  .submission-portal-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

.field-label {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1.5px solid #cbd7ec;
  background: #fbfdff;
  color: var(--ink);
  font-size: 13.5px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.form-input:focus {
  border-color: var(--royal-800);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(9, 55, 149, 0.12);
  outline: none;
}

.form-input.invalid {
  border-color: var(--crimson-600);
  background: #fffafa;
}

.form-textarea {
  min-height: 82px;
  resize: vertical;
}

.field-hint {
  margin-top: 5px;
  font-size: 11.5px;
  color: var(--ink-muted);
}

.field-error {
  margin-top: 5px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--crimson-600);
  min-height: 16px;
}

.consent-field {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 12px;
  background: var(--sky-50);
  border: 1px solid rgba(9, 55, 149, 0.2);
}

.consent-control {
  padding-top: 2px;
  cursor: pointer;
}

.consent-control input {
  width: 20px;
  height: 20px;
  accent-color: var(--crimson-600);
  cursor: pointer;
}

.consent-copy label {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-body);
  cursor: pointer;
}

.form-actions {
  margin-top: 26px;
  text-align: center;
}

.form-global-error {
  margin: 0 auto 14px;
  max-width: 540px;
  padding: 11px 14px;
  border-radius: 10px;
  background: #fff1f2;
  border: 1px solid rgba(189, 4, 23, 0.35);
  color: var(--crimson-700);
  font-size: 12.5px;
  font-weight: 700;
}

.btn-submit {
  width: 100%;
  max-width: 440px;
  min-height: 52px;
  font-size: 13.5px;
}

.btn-submit.is-loading {
  opacity: 0.78;
  cursor: wait;
  transform: none;
}

.form-footer-note {
  margin: 14px 0 0;
  font-size: 12.5px;
  color: var(--ink-muted);
}

.form-footer-note a {
  color: var(--royal-800);
  font-weight: 800;
}

/* ================= SHOWCASE / POSTER SECTION ================= */
.certificate-section {
  padding: 12px 0 72px;
  background: var(--bg);
}

.certificate-panel {
  padding: 38px 32px;
  border-radius: 24px;
  background: linear-gradient(135deg, #ffffff 0%, #eaf3ff 100%);
  border: 1.5px solid rgba(9, 55, 149, 0.18);
  box-shadow: var(--shadow-soft);
}

.certificate-heading {
  max-width: 780px;
  margin: 0 auto 28px;
  text-align: center;
}

.certificate-heading .section-kicker {
  justify-content: center;
}

.certificate-title {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  color: var(--navy-950);
}

.certificate-heading p:last-child {
  margin: 0;
  color: var(--ink-body);
  font-size: 14.5px;
}

.certificate-preview {
  max-width: 900px;
  margin: 0 auto;
}

.certificate-image-link {
  display: block;
  width: 100%;
  padding: 8px;
  border-radius: 18px;
  border: 2px solid rgba(9, 55, 149, 0.22);
  background: linear-gradient(120deg, rgba(9, 55, 149, 0.14), rgba(245, 190, 87, 0.22), rgba(189, 4, 23, 0.16));
  cursor: zoom-in;
  box-shadow: var(--shadow-card);
}

.certificate-image-link img {
  width: 100%;
  height: auto;
  border-radius: 12px;
}

.certificate-preview figcaption {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-muted);
}

/* ================= PARTNERS / ORGANIZERS SECTION ================= */
.partners {
  padding: 72px 0 84px;
  background: #ffffff;
  border-top: 1px solid var(--edge);
}

.partners-heading {
  text-align: center;
  margin-bottom: 40px;
}

.partners-heading .section-kicker {
  justify-content: center;
}

.partner-group {
  margin-top: 36px;
}

.partner-group-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 0 0 22px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
}

.partner-group-title::before,
.partner-group-title::after {
  content: "";
  height: 1px;
  width: 72px;
  background: var(--edge-strong);
}

.partner-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.partner-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.partner-card {
  padding: 24px;
  border-radius: 18px;
  background: var(--sky-50);
  border: 1px solid var(--edge);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.partner-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.partner-card--featured {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  background: #ffffff;
  border: 1.5px solid rgba(9, 55, 149, 0.18);
  box-shadow: 0 12px 32px rgba(9, 55, 149, 0.07);
}

.partner-logo-surface {
  height: 108px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  padding: 14px;
  background: linear-gradient(145deg, #071a45, #093795);
}

.partner-logo-surface--white {
  background: #ffffff;
  border: 1.5px solid rgba(9, 55, 149, 0.14);
}

.partner-logo--doan {
  max-height: 78px;
  width: auto;
  object-fit: contain;
}

.partner-logo--fpoly {
  max-height: 62px;
  width: auto;
  object-fit: contain;
}

.partner-role {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 99px;
  margin-bottom: 6px;
}

.partner-role--red {
  background: #ffeef0;
  color: var(--crimson-600);
}

.partner-role--orange {
  background: #fff2e8;
  color: #c9520e;
}

.partner-card h4 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--navy-950);
}

.partner-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-body);
}

.partner-icon-badge {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
}

.partner-icon-badge svg {
  width: 22px;
  height: 22px;
}

.partner-icon-badge--blue {
  background: #e4efff;
  color: var(--royal-800);
}

.partner-icon-badge--red {
  background: #ffe8eb;
  color: var(--crimson-600);
}

.partner-icon-badge--gold {
  background: #fff4df;
  color: var(--gold-600);
}

/* ================= CTA BANNER ================= */
.cta {
  padding: 56px 0 80px;
  background: #ffffff;
}

.cta-panel {
  position: relative;
  text-align: center;
  padding: 64px 32px;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(125deg, #071a45 0%, #093795 52%, #a80415 100%);
  color: #ffffff;
  box-shadow: 0 26px 64px rgba(9, 55, 149, 0.25);
}

.cta-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--sky-400), var(--gold-500), var(--crimson-500));
}

.cta-eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold-500);
}

.cta-panel h2 {
  margin: 14px 0;
  font-size: clamp(26px, 3.8vw, 42px);
  font-weight: 900;
  line-height: 1.25;
}

.cta-panel p:not(.cta-eyebrow) {
  max-width: 610px;
  margin: 0 auto 26px;
  color: rgba(235, 244, 255, 0.88);
  font-size: 14.5px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ================= FOOTER ================= */
.footer {
  background: var(--navy-950);
  color: #dbe8ff;
  padding: 40px 0 36px;
  border-top: 3px solid var(--crimson-600);
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.footer-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.footer-brand {
  font-size: 13.5px;
  font-weight: 900;
  color: #ffffff;
}

.footer-brand span {
  color: var(--gold-500);
}

.footer-brand-block small {
  display: block;
  margin-top: 4px;
  font-size: 11.5px;
  color: rgba(219, 232, 255, 0.7);
}

.footer-contact {
  max-width: 340px;
}

.footer-label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--sky-400);
  margin-bottom: 4px;
}

.footer-contact p {
  margin: 0;
  font-size: 12.5px;
  color: rgba(235, 244, 255, 0.86);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a {
  font-size: 12.5px;
  font-weight: 700;
  color: rgba(235, 244, 255, 0.84);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--gold-500);
}

.footer-note {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 11.5px;
  color: rgba(219, 232, 255, 0.65);
}

/* ================= MODALS / DIALOGS ================= */
.modal {
  margin: auto;
  width: min(920px, calc(100% - 32px));
  max-height: 92vh;
  padding: 22px;
  border: 1.5px solid var(--edge-strong);
  border-radius: 20px;
  background: #ffffff;
  color: var(--ink);
  box-shadow: 0 32px 80px rgba(6, 19, 46, 0.45);
}

.modal::backdrop {
  background: rgba(6, 19, 46, 0.72);
  backdrop-filter: blur(6px);
}

.modal--receipt {
  width: min(580px, calc(100% - 32px));
  padding: 30px;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.modal-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--navy-950);
}

.dialog-close {
  border: 1px solid var(--edge);
  background: var(--sky-50);
  color: var(--ink);
  width: 34px;
  height: 34px;
  border-radius: 8px;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.modal--receipt .dialog-close {
  position: absolute;
  top: 16px;
  right: 16px;
}

.modal-poster-img {
  width: 100%;
  height: auto;
  border-radius: 12px;
}

.receipt-head {
  text-align: center;
}

.receipt-head .section-kicker {
  justify-content: center;
  margin-bottom: 6px;
}

.receipt-head h3 {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 900;
  color: var(--navy-950);
}

.receipt-check {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: grid;
  place-items: center;
  background: #e6f9ef;
  color: var(--doan-green);
  border: 2px solid var(--doan-green);
  font-size: 24px;
  font-weight: 900;
}

.receipt-code {
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--ink-muted);
}

.receipt-code strong {
  font-family: var(--mono);
  color: var(--crimson-600);
}

.receipt-details {
  margin: 0 0 20px;
  padding: 16px;
  border-radius: 12px;
  background: var(--sky-50);
  border: 1px solid var(--edge);
  display: grid;
  gap: 10px;
}

.receipt-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-size: 13px;
  border-bottom: 1px dashed rgba(9, 55, 149, 0.14);
  padding-bottom: 8px;
}

.receipt-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.receipt-row dt {
  color: var(--ink-muted);
  font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
}

.receipt-row dd {
  margin: 0;
  font-weight: 700;
  color: var(--navy-950);
  text-align: right;
  word-break: break-word;
}

.receipt-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.receipt-feedback {
  margin: 10px 0 0;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--doan-green);
  min-height: 18px;
}

/* ================= REVEAL ANIMATION ================= */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.55;
    transform: scale(0.9);
  }
}

/* ================= RESPONSIVE BREAKPOINTS ================= */
@media (max-width: 1050px) {
  .hero-split,
  .count-layout,
  .intro-layout,
  .rules-layout,
  .prize-card {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .poster-float--blue {
    left: 12px;
  }

  .poster-float--red {
    right: 12px;
  }

  .partner-card--featured {
    grid-template-columns: 1fr;
  }

  .partner-logo-surface {
    height: 92px;
  }
}

@media (max-width: 840px) {
  .header {
    height: 70px;
  }

  .nav-wrap {
    justify-content: space-between;
  }

  .nav-links {
    position: absolute;
    top: 68px;
    right: 20px;
    width: min(290px, calc(100vw - 40px));
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px;
    border-radius: 14px;
    background: #ffffff;
    border: 1.5px solid var(--edge-strong);
    box-shadow: 0 20px 50px rgba(7, 26, 69, 0.18);
  }

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

  .nav-links a {
    padding: 11px 12px;
    border-radius: 8px;
  }

  .nav-links a.active {
    background: var(--sky-50);
  }

  .nav-links a.active::after {
    display: none;
  }

  .nav-action {
    margin-left: auto;
  }

  .nav-action .btn-outline {
    display: none;
  }

  .menu-btn {
    display: grid;
  }

  .stats-inner,
  .prize-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .partner-grid--two,
  .partner-grid--three {
    grid-template-columns: 1fr;
  }

  .roadmap::before {
    left: 19px;
  }

  .roadmap-stop {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
  }

  .roadmap-node {
    left: 19px;
    top: 28px;
  }

  .roadmap-stop::before {
    display: none;
  }

  .roadmap-card,
  .roadmap-stop:nth-child(even) .roadmap-card {
    grid-column: 2;
  }

  .roadmap-caption,
  .roadmap-stop:nth-child(even) .roadmap-caption {
    display: none;
  }

  .register-panel {
    padding: 32px 22px;
  }

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

@media (max-width: 560px) {
  .container {
    width: calc(100% - 32px);
  }

  .header {
    height: 66px;
  }

  .brand {
    gap: 9px;
    min-width: 0;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
  }

  .brand-title {
    font-size: 11.5px;
  }

  .brand-sub {
    display: none;
  }

  .nav-action {
    display: none;
  }

  .hero-container {
    padding: 18px 0 40px;
  }

  .hero-organizers {
    display: flex;
    width: 100%;
    border-radius: 14px;
    gap: 8px;
    padding: 9px 12px;
    margin-bottom: 20px;
  }

  .org-pill {
    font-size: 10.5px;
    line-height: 1.35;
  }

  .org-divider {
    display: none;
  }

  .hero-ribbon {
    font-size: 9.5px;
    letter-spacing: 0.05em;
    line-height: 1.4;
    max-width: 100%;
  }

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

  .hero-actions,
  .count-actions,
  .cta-buttons {
    flex-direction: column;
  }

  .hero-actions .btn,
  .count-actions .btn,
  .cta-buttons .btn {
    width: 100%;
    white-space: normal;
    text-align: center;
    padding: 12px 16px;
  }

  .poster-float {
    position: static;
    margin-top: 10px;
  }

  .hero-caption {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
    font-size: 10px;
    line-height: 1.5;
  }

  .count-boxes {
    gap: 6px;
  }

  .count-cell {
    padding: 14px 4px 12px;
  }

  .count-number {
    font-size: clamp(22px, 6.5vw, 30px);
  }

  .count-label {
    font-size: 9px;
    letter-spacing: 0.08em;
  }

  .timer-wrap {
    padding: 18px 12px;
  }

  .timer-top {
    font-size: 9.5px;
  }

  .stats-inner,
  .prize-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .stat {
    padding: 16px 14px;
  }

  .stat-num {
    font-size: 26px;
  }

  .prize-card {
    padding: 26px 16px;
  }

  .prize-highlight-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .register-panel {
    padding: 24px 14px;
  }

  .btn-submit {
    font-size: 12px;
    padding: 12px 14px;
    white-space: normal;
  }

  .certificate-panel {
    padding: 24px 14px;
  }

  .partner-card--featured {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}