/* ---------- Root & Reset ---------- */

:root {
  --bg-body: #050816;
  --bg-elevated: #0b1020;
  --bg-elevated-soft: #101528;
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.16);
  --accent-secondary: #06b6d4;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: rgba(156, 163, 175, 0.18);
  --danger: #f97373;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 999px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.75);
  --shadow-subtle: 0 10px 30px rgba(15, 23, 42, 0.6);
  --transition-fast: 150ms ease-out;
  --transition-med: 220ms ease-out;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.3), transparent 55%),
    radial-gradient(circle at bottom right, rgba(6, 182, 212, 0.2), transparent 55%),
    var(--bg-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Global Elements ---------- */

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

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

a:hover {
  text-decoration: none;
}

ul {
  margin: 0;
  padding-left: 1.1rem;
}

li {
  margin-bottom: 0.35rem;
}

/* Containers */

.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(
    to bottom,
    rgba(5, 6, 24, 0.92),
    rgba(5, 6, 24, 0.86),
    transparent
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
  padding-block: 0.85rem;
}

.logo img {
  height: 44px;
  width: auto;
  filter: drop-shadow(0 10px 25px rgba(15, 23, 42, 0.9));
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  padding: 0;
}

.nav-link {
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  padding: 0.4rem 0.1rem;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
  transition: width var(--transition-med);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link:hover::after {
  width: 100%;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--transition-med),
    color var(--transition-med),
    transform var(--transition-fast),
    box-shadow var(--transition-med),
    border-color var(--transition-med);
}

.btn span.material-symbols-outlined {
  font-size: 1.2rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  color: #e5e7eb;
  box-shadow: 0 14px 35px rgba(56, 189, 248, 0.55);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 45px rgba(56, 189, 248, 0.75);
  filter: brightness(1.04);
}

.btn-lg {
  padding: 0.8rem 1.6rem;
  font-size: 0.95rem;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: rgba(148, 163, 184, 0.45);
}

.btn-ghost:hover {
  border-color: rgba(248, 250, 252, 0.8);
  color: var(--text-main);
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.2), transparent 60%);
}

/* ---------- Hero ---------- */

.hero {
  padding-block: 3.5rem 3.75rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero-content {
  background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.94),
      rgba(15, 23, 42, 0.96)
    ),
    radial-gradient(circle at top right, rgba(79, 70, 229, 0.35), transparent 55%);
  border-radius: var(--radius-lg);
  padding: 1.9rem 1.9rem 1.7rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.22);
  position: relative;
  overflow: hidden;
}

.hero-content::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top left,
    rgba(56, 189, 248, 0.18),
    transparent 60%
  );
  mix-blend-mode: screen;
  opacity: 0.7;
  pointer-events: none;
}

.hero-content > * {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.25rem, 3vw, 2.6rem);
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

.hero p {
  margin-top: 0;
  margin-bottom: 1.4rem;
  color: var(--text-muted);
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.4rem;
}

.hero-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-highlights li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-highlights li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: radial-gradient(circle, var(--accent-secondary), transparent 70%);
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.9);
}

/* ---------- Carousel / Hero Media ---------- */

.hero-media {
  display: flex;
  justify-content: center;
}

.carousel {
  width: 100%;
  max-width: 420px;
  background: radial-gradient(circle at top, rgba(79, 70, 229, 0.3), transparent 65%),
    var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 1.15rem 1.1rem 1.3rem;
  border: 1px solid rgba(148, 163, 184, 0.28);
  box-shadow: var(--shadow-subtle);
  position: relative;
  overflow: hidden;
}

.carousel-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}

.carousel-viewport {
  overflow: hidden;
  border-radius: 12px;
}

.carousel-track {
  display: flex;
  transition: transform 350ms ease-out;
}

.carousel img {
  min-width: 100%;
  object-fit: cover;
  max-height: 260px;
}

.carousel-control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.85);
  color: var(--text-main);
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0;
  transition:
    background-color var(--transition-med),
    border-color var(--transition-med),
    transform var(--transition-fast);
}

.carousel-control.prev {
  left: 0.55rem;
}

.carousel-control.next {
  right: 0.55rem;
}

.carousel-control:hover {
  background: radial-gradient(circle, rgba(79, 70, 229, 0.6), rgba(15, 23, 42, 0.9));
  border-color: rgba(248, 250, 252, 0.9);
  transform: translateY(-50%) scale(1.05);
}

/* ---------- Sections ---------- */

.section {
  padding-block: 3rem;
}

.section-dark {
  background: radial-gradient(circle at top center, rgba(15, 118, 110, 0.18), transparent 60%),
    #020617;
}

.section-header {
  text-align: center;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 1.7rem;
  margin-bottom: 0.4rem;
}

.section-header p {
  margin: 0 auto;
  max-width: 34rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- Features Grid ---------- */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem 1.4rem;
}

.feature-card {
  background: radial-gradient(circle at top left, var(--accent-soft), transparent 60%),
    var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.15rem 1.15rem;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.7);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-med),
    border-color var(--transition-med),
    background var(--transition-med);
}

.feature-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

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

.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(96, 165, 250, 0.8);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.9);
}

/* ---------- How to Play ---------- */

#how-to-play ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.65rem;
}

#how-to-play li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.75rem 0.85rem;
  border-radius: 0.9rem;
  background: rgba(15, 23, 42, 0.88);
  border: 1px solid rgba(51, 65, 85, 0.7);
  color: var(--text-muted);
  font-size: 0.92rem;
}

#how-to-play li::before {
  content: "▶";
  font-size: 0.7rem;
  color: var(--accent-secondary);
  margin-top: 0.2rem;
}

/* ---------- More Games Grid ---------- */

.article-previews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.1rem;
}

.article-previews-grid.card {
  background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.98),
      rgba(15, 23, 42, 0.96)
    );
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  border: 1px solid rgba(75, 85, 99, 0.7);
  box-shadow: var(--shadow-soft);
}

.article-preview a {
  display: block;
  padding: 0.9rem 0.9rem 0.85rem;
  border-radius: 0.9rem;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(55, 65, 81, 0.9);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-med),
    border-color var(--transition-med),
    background var(--transition-med);
}

.article-preview h3 {
  margin: 0 0 0.25rem;
  font-size: 0.98rem;
}

.article-preview p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.article-preview a:hover {
  transform: translateY(-3px);
  border-color: rgba(56, 189, 248, 0.85);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.18), rgba(15, 23, 42, 0.98));
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.9);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid rgba(51, 65, 85, 0.8);
  background: rgba(2, 6, 23, 0.98);
  margin-top: 2rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--text-main);
}

/* ---------- Material Symbols ---------- */

.material-symbols-outlined {
  font-variation-settings:
    "FILL" 0,
    "wght" 500,
    "GRAD" 0,
    "opsz" 24;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .header-inner {
    gap: 1rem;
  }

  .main-nav ul {
    display: none;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }

  .hero-media {
    order: -1;
  }

  .hero-content {
    padding: 1.5rem 1.4rem 1.5rem;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 1.8rem, 640px);
  }

  .btn-header {
    display: none;
  }

  .hero {
    padding-block: 2.3rem 2.6rem;
  }

  .section {
    padding-block: 2.2rem;
  }

  .article-previews-grid.card {
    padding: 1.1rem;
  }
}