:root {
  --bg-dark: #120018;
  --bg-purple: #2b0b4f;
  --bg-deep: #09000f;
  --neon-green: #39ff14;
  --neon-blue: #00d9ff;
  --neon-pink: #ff3df2;
  --neon-purple: #8b5cf6;
  --white: #ffffff;
  --text-soft: rgba(255, 255, 255, 0.78);
  --card-bg: rgba(18, 18, 36, 0.48);
  --card-border: rgba(255, 255, 255, 0.16);
  --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.22);
  --shadow-strong: 0 30px 60px rgba(0, 0, 0, 0.35);
  --header-height: 88px;
  --radius-lg: 28px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --container: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Inter", "Montserrat", sans-serif;
  color: var(--white);
  background:
    radial-gradient(circle at top left, rgba(255, 61, 242, 0.1), transparent 28%),
    radial-gradient(circle at top right, rgba(0, 217, 255, 0.1), transparent 32%),
    linear-gradient(140deg, var(--bg-deep) 0%, var(--bg-dark) 42%, var(--bg-purple) 100%);
  overflow-x: hidden;
}

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

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

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

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: -1;
}

.aurora,
.grid-overlay,
.circuit,
.particles {
  position: absolute;
  inset: 0;
}

.aurora {
  filter: blur(90px);
  opacity: 0.5;
  animation: drift 14s ease-in-out infinite alternate;
}

.aurora-1 {
  background: radial-gradient(circle at 15% 30%, rgba(255, 61, 242, 0.36), transparent 26%);
}

.aurora-2 {
  background: radial-gradient(circle at 85% 20%, rgba(0, 217, 255, 0.24), transparent 24%);
  animation-duration: 18s;
}

.aurora-3 {
  background: radial-gradient(circle at 45% 75%, rgba(57, 255, 20, 0.12), transparent 18%);
  animation-duration: 20s;
}

.grid-overlay {
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 85%);
  opacity: 0.25;
}

.circuit::before,
.circuit::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(0, 217, 255, 0.16);
  border-radius: 999px;
  box-shadow: 0 0 18px rgba(0, 217, 255, 0.16);
}

.circuit-1::before {
  top: 12%;
  left: -5%;
  width: 36%;
  height: 24%;
}

.circuit-1::after {
  top: 32%;
  right: 3%;
  width: 24%;
  height: 18%;
}

.circuit-2::before {
  bottom: 12%;
  left: 10%;
  width: 28%;
  height: 20%;
}

.circuit-2::after {
  bottom: 6%;
  right: -3%;
  width: 35%;
  height: 26%;
}

.particles {
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95), rgba(0, 217, 255, 0.2));
  box-shadow: 0 0 16px rgba(0, 217, 255, 0.55);
  animation: floatParticle linear infinite;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.section {
  position: relative;
  padding: 110px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-tag,
.eyebrow,
.timeline-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03), 0 0 22px rgba(255, 61, 242, 0.14);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-heading h2,
.hero h1 {
  margin: 18px 0 14px;
  font-family: "Montserrat", "Inter", sans-serif;
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6.6rem);
  text-shadow:
    0 0 24px rgba(255, 61, 242, 0.25),
    0 0 42px rgba(0, 217, 255, 0.12);
  animation: neonPulse 3.5s ease-in-out infinite;
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.section-heading p,
.hero-text,
.track-card p,
.feature-card p,
.timeline-list span,
.prize-highlight p,
.certificate-card p,
.register-copy p,
.site-footer p {
  color: var(--text-soft);
  line-height: 1.7;
}

.glass-card {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03)),
    rgba(13, 10, 30, 0.54);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-strong), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 61, 242, 0.7), rgba(0, 217, 255, 0.5), rgba(57, 255, 20, 0.45));
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  padding-top: 18px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-height);
  padding: 16px 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  background: rgba(16, 10, 28, 0.5);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-glow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 1 460px;
  min-width: 0;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  flex: 0 0 52px;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(255, 61, 242, 0.35), rgba(0, 217, 255, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    0 10px 26px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 0 22px rgba(255, 61, 242, 0.22);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-logo-image {
  position: absolute;
  inset: 6px;
  width: calc(100% - 12px);
  height: calc(100% - 12px);
  object-fit: contain;
  display: none;
  z-index: 1;
  filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.18));
}

.brand-mark.has-custom-logo .brand-logo-image {
  display: block;
}

.brand-mark.has-custom-logo .brand-mark-text {
  opacity: 0;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.brand-copy strong,
.site-footer strong {
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  line-height: 1.2;
}

.brand-copy small {
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.14em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 auto;
  min-width: 0;
  gap: 6px;
}

.site-nav a {
  white-space: nowrap;
  padding: 12px 14px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.98rem;
  transition: color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.14);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--white);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  border-radius: 999px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  padding-top: calc(var(--header-height) + 92px);
  min-height: 100svh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 36px;
  align-items: center;
}

.hero-subtitle {
  margin: 0 0 18px;
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--neon-blue);
}

.hero-text {
  max-width: 640px;
  font-size: 1.04rem;
}

.hero-prize {
  display: inline-flex;
  flex-direction: column;
  gap: 8px;
  margin: 26px 0 30px;
  padding: 20px 24px;
}

.hero-prize strong,
.prize-highlight strong,
.prize-card strong {
  font-family: "Montserrat", sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1;
}

.hero-prize span,
.prize-card span {
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 14px 24px;
  border-radius: 18px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-3px) scale(1.01);
}

.button-primary {
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
  box-shadow:
    0 16px 36px rgba(255, 61, 242, 0.32),
    0 0 20px rgba(255, 61, 242, 0.2);
}

.button-primary:hover,
.button-primary:focus-visible {
  box-shadow:
    0 20px 44px rgba(255, 61, 242, 0.38),
    0 0 28px rgba(255, 61, 242, 0.36);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(0, 217, 255, 0.35);
  box-shadow: 0 0 24px rgba(0, 217, 255, 0.12);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.09);
  box-shadow: 0 0 28px rgba(0, 217, 255, 0.24);
}

.deadline {
  margin-top: 18px;
  color: var(--neon-green);
  font-weight: 600;
}

.hero-visual {
  position: relative;
  min-height: 620px;
}

.hero-orbit {
  position: absolute;
  inset: 8% 10%;
  border-radius: 50%;
  border: 1px solid rgba(0, 217, 255, 0.18);
  box-shadow:
    inset 0 0 24px rgba(0, 217, 255, 0.08),
    0 0 38px rgba(139, 92, 246, 0.16);
  animation: spinSlow 24s linear infinite;
}

.hero-orbit::before,
.hero-orbit::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 61, 242, 0.16);
}

.hero-orbit::before {
  inset: 16%;
}

.hero-orbit::after {
  inset: 30%;
  border-color: rgba(57, 255, 20, 0.14);
}

.hero-lightning {
  position: absolute;
  width: 160px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
  filter: drop-shadow(0 0 8px var(--neon-blue));
  opacity: 0.7;
}

.hero-lightning::before,
.hero-lightning::after {
  content: "";
  position: absolute;
  width: 36px;
  height: 2px;
  background: inherit;
}

.hero-lightning-1 {
  top: 16%;
  right: 14%;
  transform: rotate(-26deg);
}

.hero-lightning-1::before {
  top: 8px;
  left: 42px;
  transform: rotate(32deg);
}

.hero-lightning-1::after {
  top: -8px;
  left: 86px;
  transform: rotate(-22deg);
}

.hero-lightning-2 {
  bottom: 20%;
  left: 8%;
  transform: rotate(22deg);
}

.hero-lightning-2::before {
  top: -10px;
  left: 44px;
  transform: rotate(-30deg);
}

.hero-lightning-2::after {
  top: 7px;
  left: 94px;
  transform: rotate(28deg);
}

.floating-key,
.floating-bulb {
  position: absolute;
  display: grid;
  place-items: center;
  border-radius: 26px;
  backdrop-filter: blur(18px);
}

.floating-key {
  min-width: 130px;
  min-height: 96px;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.05)),
    rgba(24, 12, 46, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    0 18px 30px rgba(3, 3, 18, 0.4),
    inset 0 2px 0 rgba(255, 255, 255, 0.14),
    0 0 28px rgba(139, 92, 246, 0.22);
  transform-style: preserve-3d;
}

.floating-key span {
  font-family: "Montserrat", sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-shadow: 0 0 18px rgba(255, 255, 255, 0.14);
}

.floating-asset {
  position: absolute;
  inset: 10px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  object-fit: contain;
  filter:
    drop-shadow(0 0 10px rgba(255, 255, 255, 0.18))
    drop-shadow(0 0 18px rgba(0, 217, 255, 0.18));
  display: none;
  z-index: 1;
}

.floating-key.has-custom-image span {
  opacity: 0;
}

.floating-key.has-custom-image .floating-asset {
  display: block;
}

.key-hf {
  top: 8%;
  left: 18%;
  width: 220px;
  height: 150px;
  animation: floatKey 6s ease-in-out infinite;
}

.key-hf span {
  font-size: 2.3rem;
}

.key-ai {
  top: 18%;
  right: 8%;
  color: var(--neon-blue);
  animation: floatKey 5.5s ease-in-out infinite 0.4s;
}

.key-git {
  top: 44%;
  right: 18%;
  color: var(--neon-pink);
  animation: floatKey 5.8s ease-in-out infinite 0.9s;
}

.key-aksit {
  bottom: 10%;
  left: 24%;
  width: 180px;
  color: var(--neon-green);
  animation: floatKey 6.4s ease-in-out infinite 0.5s;
}

.key-code {
  bottom: 24%;
  left: 2%;
  width: 120px;
  min-height: 86px;
  color: var(--neon-purple);
  animation: floatKey 5.2s ease-in-out infinite 1s;
}

.floating-bulb {
  right: 34%;
  bottom: 14%;
  width: 108px;
  height: 108px;
  background: radial-gradient(circle, rgba(255, 243, 176, 0.3), rgba(255, 61, 242, 0.1) 58%, transparent 72%);
  animation: floatKey 5.9s ease-in-out infinite 0.2s;
}

.bulb-core {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff5b8, #ffe566 55%, rgba(255, 229, 102, 0.4));
  box-shadow:
    0 0 26px rgba(255, 229, 102, 0.7),
    0 0 52px rgba(255, 229, 102, 0.3);
}

.bulb-rays {
  position: absolute;
  inset: 18px;
  border-radius: 50%;
  border: 1px solid rgba(255, 229, 102, 0.35);
}

.bulb-rays::before,
.bulb-rays::after {
  content: "";
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 229, 102, 0.18);
}

.floating-bulb-image {
  inset: 0;
  width: 100%;
  height: 100%;
}

.floating-bulb.has-custom-image .floating-asset {
  display: block;
}

.floating-bulb.has-custom-image .bulb-core,
.floating-bulb.has-custom-image .bulb-rays {
  opacity: 0;
}

.cards-grid {
  display: grid;
  gap: 22px;
}

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

.feature-card,
.track-card,
.prize-card,
.partner-card {
  padding: 28px;
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.feature-card:hover,
.track-card:hover,
.prize-card:hover,
.partner-card:hover {
  transform: translateY(-8px);
  box-shadow:
    0 26px 50px rgba(0, 0, 0, 0.35),
    0 0 28px rgba(0, 217, 255, 0.16);
}

.card-icon,
.track-topline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 36px;
  margin-bottom: 18px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--neon-blue);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.track-topline {
  color: var(--neon-pink);
}

.feature-card h3,
.track-card h3,
.certificate-card h3,
.timeline-card h3 {
  margin: 0 0 12px;
  font-size: 1.4rem;
}

.timeline-layout {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.timeline-layout::before {
  content: "";
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: calc(50% - 1px);
  width: 2px;
  background: linear-gradient(var(--neon-blue), var(--neon-pink), var(--neon-green));
  box-shadow: 0 0 22px rgba(0, 217, 255, 0.36);
}

.timeline-card {
  padding: 30px;
}

.timeline-heading {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 22px;
}

.timeline-list {
  position: relative;
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline-list li {
  position: relative;
  display: grid;
  gap: 6px;
  padding-left: 22px;
}

.timeline-list li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
  box-shadow: 0 0 16px rgba(0, 217, 255, 0.55);
}

.timeline-list strong {
  color: var(--white);
  font-size: 0.96rem;
}

.prize-layout {
  display: grid;
  gap: 24px;
}

.prize-highlight {
  padding: 38px;
  text-align: center;
}

.prize-grid {
  align-items: stretch;
}

.prize-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  min-height: 160px;
  gap: 18px;
}

.prize-card span {
  display: inline-block;
  font-size: 0.98rem;
}

.prize-card strong,
.prize-highlight strong {
  white-space: nowrap;
  word-break: keep-all;
}

.prize-card strong {
  font-size: clamp(2rem, 3vw, 3rem);
}

.prize-highlight strong {
  display: inline-block;
  font-size: clamp(2.6rem, 5vw, 4.4rem);
}

.prize-highlight p {
  max-width: 620px;
  margin: 16px auto 0;
}

.certificate-card {
  padding: 30px;
  text-align: center;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.partner-card {
  display: grid;
  place-items: center;
  min-height: 150px;
  gap: 18px;
  text-align: center;
}

.partner-logo-wrap {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 88px;
  padding: 12px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.partner-logo {
  width: auto;
  max-width: 100%;
  max-height: 72px;
  object-fit: contain;
  filter:
    drop-shadow(0 0 12px rgba(255, 255, 255, 0.18))
    drop-shadow(0 0 18px rgba(0, 217, 255, 0.16));
}

.partner-logo[src=""],
.partner-logo:not([src]) {
  display: none;
}

.partner-name {
  max-width: 220px;
  font-weight: 700;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.88);
}

.register-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  align-items: center;
  padding: 34px;
}

.register-copy h2 {
  margin: 18px 0 12px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.countdown-card {
  margin: 26px 0 24px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(8, 10, 20, 0.42);
  box-shadow: inset 0 0 22px rgba(0, 217, 255, 0.06);
}

.countdown-title,
.countdown-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}

.countdown-title {
  margin-bottom: 16px;
  font-weight: 700;
}

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

.countdown-item {
  display: grid;
  gap: 6px;
  padding: 14px 10px;
  border-radius: 18px;
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.countdown-item strong {
  font-family: "Montserrat", sans-serif;
  font-size: clamp(1.5rem, 2.6vw, 2.35rem);
  line-height: 1;
  color: var(--white);
}

.countdown-item span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.countdown-note {
  margin-top: 16px;
  color: var(--neon-green);
  font-weight: 600;
}

.register-link {
  display: inline-block;
  margin: 8px 0 24px;
  color: var(--neon-blue);
  font-size: 1.2rem;
  font-weight: 700;
}

.qr-placeholder {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 28px;
  border: 1px dashed rgba(255, 255, 255, 0.26);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03)),
    rgba(8, 10, 20, 0.55);
  box-shadow: inset 0 0 26px rgba(0, 217, 255, 0.08);
  overflow: hidden;
}

.qr-image {
  position: absolute;
  inset: 18px;
  width: calc(100% - 36px);
  height: calc(100% - 36px);
  object-fit: contain;
  display: none;
  z-index: 2;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.18);
}

.qr-placeholder.has-custom-qr .qr-image {
  display: block;
}

.qr-placeholder.has-custom-qr .qr-grid,
.qr-placeholder.has-custom-qr span {
  opacity: 0;
}

.qr-grid {
  position: absolute;
  inset: 18px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 50%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.08) 50%, transparent 50%);
  background-size: 24px 24px;
  opacity: 0.8;
}

.qr-placeholder span {
  position: relative;
  z-index: 1;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.site-footer {
  padding: 0 0 32px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  background: rgba(12, 10, 24, 0.6);
  backdrop-filter: blur(16px);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.78);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--neon-blue);
}

.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.admin-page {
  min-height: 100vh;
}

.admin-main {
  padding: 48px 0 80px;
}

.admin-hero {
  display: grid;
  gap: 26px;
  margin-top: 28px;
  padding: 32px;
}

.admin-hero h1 {
  margin: 18px 0 12px;
  font-family: "Montserrat", "Inter", sans-serif;
  font-size: clamp(2.2rem, 5vw, 4.1rem);
  line-height: 0.98;
}

.admin-hero p,
.admin-card p {
  color: var(--text-soft);
  line-height: 1.7;
}

.admin-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.admin-folder-status {
  margin: 2px 0 0;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.6;
}

.admin-folder-status[data-state="success"] {
  color: var(--neon-green);
}

.admin-folder-status[data-state="error"] {
  color: #ff8abf;
}

.admin-folder-status[data-state="progress"] {
  color: var(--neon-blue);
}

.admin-folder-status[data-state="success"] {
  color: var(--neon-green);
}

.admin-folder-status[data-state="error"] {
  color: #ff8abf;
}

.admin-file-guide {
  margin-top: 12px;
  padding: 20px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(8, 10, 20, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-file-guide h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.admin-file-guide p {
  margin: 0 0 14px;
}

.admin-file-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px 16px;
  margin: 0;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.84);
}

.admin-section {
  padding-bottom: 30px;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.admin-card {
  display: grid;
  gap: 18px;
  padding: 20px;
}

.admin-preview {
  display: grid;
  place-items: center;
  min-height: 180px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(8, 10, 20, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.admin-preview-image {
  width: 100%;
  height: 180px;
  object-fit: contain;
}

.admin-preview-empty {
  color: rgba(255, 255, 255, 0.56);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.admin-card-body h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.admin-file-input {
  width: 100%;
  margin-top: 8px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.84);
}

.admin-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.admin-card-actions .button {
  flex: 1 1 180px;
}

.admin-status {
  margin: 14px 0 0;
  font-size: 0.94rem;
  font-weight: 600;
}

.admin-status[data-state="success"] {
  color: var(--neon-green);
}

.admin-status[data-state="error"] {
  color: #ff8abf;
}

.admin-status[data-state="progress"] {
  color: var(--neon-blue);
}

.admin-card .button:disabled {
  opacity: 0.7;
  cursor: wait;
}

@keyframes drift {
  from {
    transform: translate3d(-2%, -1%, 0) scale(1);
  }
  to {
    transform: translate3d(2%, 2%, 0) scale(1.08);
  }
}

@keyframes neonPulse {
  0%,
  100% {
    text-shadow:
      0 0 18px rgba(255, 61, 242, 0.22),
      0 0 36px rgba(0, 217, 255, 0.12);
  }
  50% {
    text-shadow:
      0 0 28px rgba(255, 61, 242, 0.36),
      0 0 56px rgba(0, 217, 255, 0.2);
  }
}

@keyframes floatKey {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotateX(0deg) rotateY(0deg);
  }
  50% {
    transform: translate3d(0, -14px, 0) rotateX(4deg) rotateY(-6deg);
  }
}

@keyframes spinSlow {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes floatParticle {
  from {
    transform: translate3d(0, 105vh, 0) scale(0.8);
    opacity: 0;
  }
  10%,
  90% {
    opacity: 0.9;
  }
  to {
    transform: translate3d(0, -10vh, 0) scale(1.2);
    opacity: 0;
  }
}

@media (max-width: 1080px) {
  .hero-grid,
  .register-card,
  .timeline-layout,
  .partners-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .track-grid,
  .prize-grid,
  .admin-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline-layout::before {
    left: 20px;
    top: 20px;
    bottom: 20px;
  }

  .hero-visual {
    min-height: 540px;
  }

  .register-card {
    justify-items: start;
  }

  .prize-card {
    min-height: 148px;
  }

  .admin-file-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1240px) {
  .header-inner {
    gap: 14px;
    padding: 14px 18px;
  }

  .brand {
    flex-basis: 380px;
    gap: 12px;
  }

  .brand-copy strong {
    font-size: 0.82rem;
    letter-spacing: 0.06em;
  }

  .brand-copy small {
    letter-spacing: 0.1em;
  }

  .site-nav {
    gap: 2px;
  }

  .site-nav a {
    padding: 10px 10px;
    font-size: 0.92rem;
  }
}

@media (max-width: 860px) {
  .site-header {
    padding-top: 12px;
  }

  .header-inner {
    position: relative;
    min-height: 76px;
    padding: 14px 16px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: grid;
    gap: 6px;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    background: rgba(13, 10, 28, 0.92);
    backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }

  .menu-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 14px 16px;
  }

  .brand-copy strong {
    font-size: 0.76rem;
  }

  .brand {
    flex-basis: auto;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 88px 0;
  }

  .container {
    width: min(calc(100% - 20px), var(--container));
  }

  .hero {
    padding-top: calc(var(--header-height) + 58px);
  }

  .hero-text,
  .section-heading p {
    font-size: 0.96rem;
  }

  .feature-grid,
  .track-grid,
  .prize-grid,
  .partners-grid,
  .admin-grid {
    grid-template-columns: 1fr;
  }

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

  .admin-file-list {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .footer-inner,
  .admin-hero-actions,
  .admin-card-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 420px;
  }

  .floating-key {
    min-width: 100px;
    min-height: 78px;
    border-radius: 22px;
  }

  .key-hf {
    width: 180px;
    height: 120px;
    left: 10%;
  }

  .key-ai {
    right: 0;
  }

  .key-git {
    right: 8%;
    top: 46%;
  }

  .key-aksit {
    left: 8%;
    bottom: 8%;
  }

  .key-code {
    left: 0;
    bottom: 28%;
  }

  .floating-bulb {
    right: 28%;
    width: 92px;
    height: 92px;
  }

  .timeline-card,
  .feature-card,
  .track-card,
  .prize-card,
  .partner-card,
  .register-card,
  .prize-highlight,
  .certificate-card {
    padding: 22px;
  }

  .prize-card {
    min-height: auto;
    gap: 12px;
  }

  .prize-card strong,
  .prize-highlight strong {
    white-space: normal;
  }
}