/* ==========================================================================
   FirstCommit — Design System & Styles
   ========================================================================== */

:root {
  /* Colors */
  --color-bg: #08080c;
  --color-bg-elevated: #0f0f14;
  --color-surface: #141419;
  --color-surface-hover: #1a1a22;
  --color-border: #22222e;
  --color-border-subtle: #1a1a24;

  --color-text: #f0f0f3;
  --color-text-secondary: #9494a8;
  --color-text-muted: #6b6b7d;

  --color-accent: #22c55e;
  --color-accent-hover: #16a34a;
  --color-accent-muted: rgba(34, 197, 94, 0.12);
  --color-accent-glow: rgba(34, 197, 94, 0.25);

  --color-terminal-red: #ff5f57;
  --color-terminal-yellow: #febc2e;
  --color-terminal-green: #28c840;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --container-max: 72rem;
  --container-narrow: 42rem;
  --header-height: 4rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 250ms var(--ease-out);
  --transition-smooth: 500ms var(--ease-out);

  /* Reveal */
  --reveal-distance: 1.25rem;
  --reveal-stagger: 60ms;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 1000;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-bg);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-md);
}

.section {
  padding-block: clamp(4rem, 8vw, var(--space-4xl));
}

.section__header {
  margin-bottom: clamp(2rem, 5vw, var(--space-3xl));
  max-width: 38rem;
}

.section__header--center {
  text-align: center;
  margin-inline: auto;
}

.section__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.375rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 36rem;
}

.section__header--center .section__subtitle {
  margin-inline: auto;
}

/* ==========================================================================
   Scroll Reveal
   ========================================================================== */

.reveal,
.reveal-item {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition:
    opacity 0.55s var(--ease-out),
    transform 0.55s var(--ease-out);
}

.reveal.is-visible,
.reveal-stagger.is-visible .reveal-item {
  opacity: 1;
  transform: none;
}

.reveal-stagger.is-visible .reveal-item {
  transition-delay: calc(var(--reveal-index, 0) * var(--reveal-stagger));
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn--lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

.btn--primary {
  background: var(--color-accent);
  color: #041208;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-accent-glow);
}

.btn--primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px var(--color-accent-glow);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-text-muted);
  transform: translateY(-2px);
}

.btn--secondary:active {
  transform: translateY(0) scale(0.98);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(8, 8, 12, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(8, 8, 12, 0.92);
  border-bottom-color: var(--color-border-subtle);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.nav__logo:hover {
  opacity: 0.85;
}

.nav__logo-icon {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2rem;
  height: 2rem;
  padding: var(--space-xs);
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding-block: clamp(3rem, 7vw, var(--space-4xl)) clamp(2.5rem, 6vw, var(--space-3xl));
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-accent-muted);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
  max-width: 32rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero__glow {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 50%;
  height: 80%;
  background: radial-gradient(ellipse, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.35;
}

/* Hero entrance */
.hero__enter {
  opacity: 0;
  transform: translateY(1.25rem);
}

.is-loaded .hero__enter:nth-child(1) { animation: hero-enter 0.65s var(--ease-out) 0.05s forwards; }
.is-loaded .hero__enter:nth-child(2) { animation: hero-enter 0.65s var(--ease-out) 0.15s forwards; }
.is-loaded .hero__enter:nth-child(3) { animation: hero-enter 0.65s var(--ease-out) 0.25s forwards; }
.is-loaded .hero__enter:nth-child(4) { animation: hero-enter 0.65s var(--ease-out) 0.35s forwards; }

.is-loaded .hero__enter--visual {
  animation: hero-enter-visual 0.75s var(--ease-out) 0.2s forwards;
}

@keyframes hero-enter {
  from {
    opacity: 0;
    transform: translateY(1.25rem);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes hero-enter-visual {
  from {
    opacity: 0;
    transform: translateY(1rem) scale(0.97);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Terminal */
.terminal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.terminal:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

.terminal__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
}

.terminal__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal__dot--red { background: var(--color-terminal-red); }
.terminal__dot--yellow { background: var(--color-terminal-yellow); }
.terminal__dot--green { background: var(--color-terminal-green); }

.terminal__title {
  margin-left: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.terminal__body {
  padding: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
}

.terminal__line {
  opacity: 0;
  animation: terminal-fade-in 0.4s ease forwards;
}

.terminal__line:nth-child(1) { animation-delay: 0.2s; }
.terminal__line:nth-child(2) { animation-delay: 0.5s; }
.terminal__line:nth-child(3) { animation-delay: 0.8s; }
.terminal__line:nth-child(4) { animation-delay: 1.1s; }
.terminal__line:nth-child(5) { animation-delay: 1.4s; }
.terminal__line:nth-child(6) { animation-delay: 1.7s; }
.terminal__line:nth-child(7) { animation-delay: 2.0s; }
.terminal__line:nth-child(8) { animation-delay: 2.3s; }

@keyframes terminal-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.terminal__prompt {
  color: var(--color-accent);
  margin-right: var(--space-sm);
}

.terminal__line--muted {
  color: var(--color-text-muted);
  padding-left: 1.25rem;
}

.terminal__line--success {
  color: var(--color-accent);
}

.terminal__string {
  color: #fbbf24;
}

.cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--color-accent);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ==========================================================================
   About
   ========================================================================== */

.about__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.about__card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.about__card:hover {
  border-color: rgba(34, 197, 94, 0.28);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.about__card:hover .about__icon {
  background: rgba(34, 197, 94, 0.18);
}

.about__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  color: var(--color-accent);
  transition: background-color var(--transition-base);
}

.about__icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.about__card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.about__card-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Why Cards
   ========================================================================== */

.why {
  background: var(--color-bg-elevated);
}

.why__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
}

.why__card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.why__card:hover {
  border-color: rgba(34, 197, 94, 0.2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.why__icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  line-height: 1;
}

.why__card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.why__card-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   Steps
   ========================================================================== */

.steps__list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
  counter-reset: step;
}

.steps__item {
  position: relative;
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  counter-increment: step;
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.steps__item:hover {
  border-color: rgba(34, 197, 94, 0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.steps__number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-accent-muted);
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
}

.steps__content {
  flex: 1;
}

.steps__title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.steps__text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Prizes
   ========================================================================== */

.prizes__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.prize-card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.prize-card:hover {
  transform: translateY(-3px);
  border-color: rgba(34, 197, 94, 0.28);
  box-shadow: var(--shadow-md);
}

.prize-card--highlight {
  border-color: rgba(34, 197, 94, 0.4);
  background: linear-gradient(135deg, var(--color-surface) 0%, rgba(34, 197, 94, 0.05) 100%);
}

.prize-card__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  background: var(--color-accent-muted);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.prize-card__name {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.prize-card__description {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.prizes__note {
  margin-top: var(--space-2xl);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-accent-muted);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  text-align: center;
}

.prizes__note strong {
  color: var(--color-accent);
  font-weight: 600;
}

/* ==========================================================================
   Sponsors
   ========================================================================== */

.sponsors__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xl);
}

.sponsor-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xl) var(--space-3xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  min-width: 280px;
}

.sponsor-card:hover {
  border-color: rgba(34, 197, 94, 0.25);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.sponsor-card:hover .sponsor-card__logo {
  transform: scale(1.03);
}

.sponsor-card__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 160px;
  height: 60px;
  color: var(--color-text);
  transition: transform var(--transition-base);
}

.sponsor-card__logo img,
.sponsor-card__logo svg {
  width: 100%;
  height: auto;
  max-height: 48px;
  object-fit: contain;
}

.sponsor-card__name {
  font-size: 1.125rem;
  font-weight: 600;
}

.sponsor-card__description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 24rem;
}

/* ==========================================================================
   Timeline
   ========================================================================== */

.timeline {
  position: relative;
  max-width: 36rem;
  margin-inline: auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-left: 2.75rem;
  padding-bottom: var(--space-2xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: 0;
  top: 0.25rem;
  width: 1.5rem;
  height: 1.5rem;
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  transition:
    background-color var(--transition-base),
    box-shadow var(--transition-base);
}

.timeline__item:hover .timeline__marker {
  background: var(--color-accent-muted);
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.12);
}

.timeline__date {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--color-accent);
  background: var(--color-accent-muted);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.timeline__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.timeline__description {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.faq__item:hover {
  border-color: rgba(34, 197, 94, 0.15);
}

.faq__item[open] {
  border-color: rgba(34, 197, 94, 0.25);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  color: var(--color-text);
  transition: background-color var(--transition-fast);
}

.faq__question:hover {
  background: var(--color-surface-hover);
}

.faq__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.faq__item[open] .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  padding: 0 var(--space-xl) var(--space-lg);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  animation: faq-open 0.3s var(--ease-out);
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.faq__item summary {
  list-style: none;
}

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

/* ==========================================================================
   CTA
   ========================================================================== */

.cta {
  padding-bottom: var(--space-4xl);
}

.cta__card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2xl);
  align-items: center;
  padding: clamp(2rem, 5vw, var(--space-3xl));
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.cta__card:hover {
  border-color: rgba(34, 197, 94, 0.25);
  box-shadow: var(--shadow-md);
}

.cta__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, var(--color-accent-glow) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0.3;
}

.cta__content {
  position: relative;
}

.cta__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.cta__text {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 32rem;
}

.cta__fine-print {
  margin-top: var(--space-md);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.cta__decoration {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cta__code {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  color: var(--color-accent);
  opacity: 0.6;
  white-space: nowrap;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  padding-block: var(--space-3xl) var(--space-xl);
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border-subtle);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: var(--space-md);
}

.footer__description {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  max-width: 24rem;
}

.footer__nav-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__links a,
.footer__social-links a {
  position: relative;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer__links a:hover,
.footer__social-links a:hover {
  color: var(--color-text);
  transform: translateX(2px);
}

.footer__social-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__social-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__social-links svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-subtle);
}

.footer__copyright,
.footer__sponsor {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer__sponsor a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__sponsor a:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .hero__visual {
    order: -1;
    max-width: 28rem;
    margin-inline: auto;
    width: 100%;
  }

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

  .footer__brand {
    grid-column: 1 / -1;
  }

  .cta__card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .cta__text {
    margin-inline: auto;
  }

  .cta__decoration {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--space-3xl);
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-lg);
    padding: var(--space-xl) var(--space-lg);
    background: rgba(8, 8, 12, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--color-border-subtle);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition:
      transform 0.35s var(--ease-out),
      opacity 0.35s var(--ease-out),
      visibility 0.35s;
    overflow-y: auto;
  }

  .nav__menu.is-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__link::after {
    display: none;
  }

  .nav__links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav__link {
    display: block;
    padding: var(--space-md) 0;
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--color-border-subtle);
  }

  .nav__cta {
    width: 100%;
    justify-content: center;
    margin-top: var(--space-md);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

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

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

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

  .reveal,
  .reveal-item,
  .hero__enter,
  .hero__enter--visual {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .terminal:hover,
  .about__card:hover,
  .why__card:hover,
  .steps__item:hover,
  .prize-card:hover,
  .sponsor-card:hover,
  .cta__card:hover {
    transform: none;
  }

  .footer__links a:hover,
  .footer__social-links a:hover {
    transform: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}