/* Yilan.com.tr — Dark Neon Arcade Theme */
:root {
  --bg-color: #0a0f1a;
  --bg-secondary: #111827;
  --primary-color: #10b981;
  --primary-dark: #059669;
  --secondary-color: #3b82f6;
  --accent-color: #a855f7;
  --text-color: #f1f5f9;
  --text-muted: #94a3b8;
  --card-bg: rgba(17, 24, 39, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --glow-primary: rgba(16, 185, 129, 0.45);
  --glow-secondary: rgba(59, 130, 246, 0.35);
  --navbar-height: 72px;
  --focus-ring: 0 0 0 3px rgba(16, 185, 129, 0.55);
}

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

html {
  scroll-behavior: smooth;
}

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

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

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.5;
  pointer-events: none;
}

#bg-canvas.is-hidden {
  display: none;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1100;
  padding: 0.75rem 1.25rem;
  background: var(--primary-color);
  color: #fff;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Navbar */
.site-header .navbar {
  background-color: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  min-height: var(--navbar-height);
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.navbar-brand {
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--primary-color) !important;
  text-shadow: 0 0 12px var(--glow-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand svg {
  flex-shrink: 0;
}

.nav-link {
  color: var(--text-muted) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  border-radius: 0.5rem;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus,
.nav-link.active {
  color: var(--text-color) !important;
  background-color: rgba(16, 185, 129, 0.12);
}

.nav-link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.navbar-toggler {
  border-color: var(--border-color);
}

.navbar-toggler:focus {
  box-shadow: var(--focus-ring);
}

.lang-switcher {
  display: inline-flex;
  gap: 0.35rem;
  margin-left: 0.5rem;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  padding: 0.3rem 0.75rem;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 2rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.lang-btn:hover,
.lang-btn:focus {
  color: var(--text-color);
  border-color: var(--primary-color);
}

.lang-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

.lang-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Hero */
.hero-section {
  min-height: calc(100vh - var(--navbar-height));
  display: flex;
  align-items: center;
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary-color);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 2rem;
}

.hero-title {
  font-size: clamp(2rem, 6vw, 3.75rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  max-width: 42rem;
  margin: 0 auto 2rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.btn-play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1.1rem 2.5rem;
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border: none;
  border-radius: 3rem;
  box-shadow: 0 0 24px var(--glow-primary), 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-play:hover,
.btn-play:focus {
  color: #fff;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 36px var(--glow-primary), 0 12px 28px rgba(0, 0, 0, 0.4);
}

.btn-play:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring), 0 0 36px var(--glow-primary);
}

.btn-outline-light-custom {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.75rem;
  font-weight: 600;
  color: var(--text-color);
  text-decoration: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 3rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.btn-outline-light-custom:hover,
.btn-outline-light-custom:focus {
  color: var(--text-color);
  border-color: var(--secondary-color);
  background: rgba(59, 130, 246, 0.1);
}

.btn-outline-light-custom:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.hero-note {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Sections */
.content-section {
  padding: 5rem 0;
}

.content-section-alt {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.5) 0%, rgba(10, 15, 26, 0) 100%);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: var(--text-muted);
  max-width: 36rem;
  margin: 0 auto;
}

.section-divider {
  width: 56px;
  height: 4px;
  margin: 1rem auto 0;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

/* Feature cards */
.feature-card {
  height: 100%;
  padding: 2rem 1.75rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  backdrop-filter: blur(8px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(16, 185, 129, 0.35);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  margin-bottom: 1.25rem;
  color: var(--primary-color);
  background: rgba(16, 185, 129, 0.12);
  border-radius: 1rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-muted);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Steps */
.step-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.step-number {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-radius: 50%;
  box-shadow: 0 0 16px var(--glow-primary);
}

.step-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.step-item p {
  color: var(--text-muted);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Controls panel */
.controls-panel {
  padding: 2.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  text-align: center;
}

.controls-panel svg {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.control-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  margin-bottom: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0.75rem;
  text-align: left;
}

.control-key {
  flex-shrink: 0;
  min-width: 5.5rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-align: center;
  color: var(--primary-color);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 0.5rem;
}

.control-desc {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* Why play */
.why-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  margin-bottom: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
}

.why-icon {
  flex-shrink: 0;
  color: var(--secondary-color);
}

.why-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.why-item p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.9rem;
}

/* FAQ */
.accordion-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color) !important;
  margin-bottom: 0.75rem;
  border-radius: 0.75rem !important;
  overflow: hidden;
}

.accordion-button {
  background: transparent !important;
  color: var(--text-color) !important;
  font-weight: 600;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  color: var(--primary-color) !important;
  background: rgba(16, 185, 129, 0.08) !important;
}

.accordion-button:focus {
  box-shadow: var(--focus-ring) !important;
  border-color: transparent;
}

.accordion-button::after {
  filter: invert(1);
}

.accordion-body {
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
}

/* Final CTA */
.final-cta {
  padding: 4rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(59, 130, 246, 0.1));
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 1.5rem;
}

.final-cta h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.final-cta p {
  color: var(--text-muted);
  max-width: 32rem;
  margin: 0 auto 1.75rem;
}

/* Footer */
.site-footer {
  margin-top: 2rem;
  padding: 2.5rem 0;
  background: rgba(0, 0, 0, 0.4);
  border-top: 1px solid var(--border-color);
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer a:hover,
.site-footer a:focus {
  color: var(--primary-color);
}

.site-footer a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: 0.25rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}

@media (min-width: 768px) {
  .footer-links {
    justify-content: flex-end;
  }
}

/* Legal pages */
.legal-page {
  padding-top: calc(var(--navbar-height) + 2rem);
  padding-bottom: 4rem;
  min-height: 70vh;
}

.legal-page h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.legal-page .legal-updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.legal-page h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--primary-color);
}

.legal-page p,
.legal-page li {
  color: var(--text-muted);
}

.legal-page ul {
  padding-left: 1.25rem;
}

.legal-page a {
  color: var(--primary-color);
}

/* 404 */
.error-page {
  min-height: calc(100vh - var(--navbar-height));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1rem 4rem;
}

.error-code {
  font-size: clamp(4rem, 15vw, 8rem);
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.error-page h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin: 1rem 0;
}

.error-page p {
  color: var(--text-muted);
  max-width: 28rem;
  margin: 0 auto 2rem;
}