/* KGame – k-game-web.baby | Game info portal */
@import url("https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&family=Oxanium:wght@500;600;700&display=swap");

:root {
  --bg: #0b1220;
  --bg-elevated: #121b2e;
  --bg-soft: #182338;
  --surface: #1a2740;
  --line: rgba(148, 180, 220, 0.16);
  --text: #e8eef7;
  --muted: #9aadc4;
  --accent: #3db8ff;
  --accent-2: #1ee0b0;
  --accent-deep: #1a7fd4;
  --danger: #ff6b7a;
  --warning: #ffb347;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --header-h: 72px;
  --max: 1180px;
  --font: "Be Vietnam Pro", sans-serif;
  --display: "Oxanium", "Be Vietnam Pro", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61, 184, 255, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(30, 224, 176, 0.1), transparent 50%),
    linear-gradient(180deg, #0a101c 0%, var(--bg) 40%, #091018 100%);
  min-height: 100vh;
  line-height: 1.65;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--accent-2);
}

h1,
h2,
h3,
h4 {
  font-family: var(--display);
  line-height: 1.25;
  margin: 0 0 0.75rem;
  font-weight: 700;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

ul,
ol {
  color: var(--muted);
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(11, 18, 32, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
  max-width: min(42vw, 220px);
}

.brand img {
  height: 40px;
  width: auto;
  max-height: 40px;
  object-fit: contain;
}

.brand-text {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  font-size: 1.15rem;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
}

.nav-desktop a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.45rem 0.7rem;
  border-radius: 8px;
}

.nav-desktop a:hover,
.nav-desktop a.is-active {
  color: var(--text);
  background: rgba(61, 184, 255, 0.1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.62rem 1.05rem;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
  font-family: var(--font);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #041018;
}

.btn-primary:hover {
  color: #041018;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: rgba(61, 184, 255, 0.45);
  color: var(--accent);
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 0.45rem;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.88rem;
}

.menu-toggle svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: rgba(12, 19, 34, 0.98);
  border-bottom: 1px solid var(--line);
  padding: 1rem;
  z-index: 999;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav a {
  display: block;
  padding: 0.85rem 0.75rem;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  font-weight: 500;
}

.mobile-nav .mobile-auth {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-top: 1rem;
}

.mobile-nav .mobile-auth .btn {
  width: 100%;
}

main {
  padding-top: var(--header-h);
}

/* Hero */
.hero {
  position: relative;
  min-height: min(78vh, 640px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(8, 14, 26, 0.92) 0%, rgba(8, 14, 26, 0.72) 42%, rgba(8, 14, 26, 0.35) 100%),
    linear-gradient(0deg, rgba(8, 14, 26, 0.95) 0%, transparent 48%);
}

.hero-content {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto 3.5rem;
  max-width: 640px;
  animation: rise 0.7s ease both;
}

.hero-content h1 {
  font-size: clamp(1.85rem, 4.2vw, 3rem);
  margin-bottom: 0.85rem;
  color: #fff;
}

.hero-content p {
  font-size: 1.05rem;
  color: #c7d6e8;
  margin-bottom: 1.4rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  animation: fade-up 0.65s ease both;
}

.section {
  padding: 4.2rem 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(24, 35, 56, 0.45), transparent);
  border-block: 1px solid var(--line);
}

.section-head {
  margin-bottom: 2rem;
  max-width: 720px;
}

.section-head h2 {
  font-size: clamp(1.45rem, 2.6vw, 2rem);
}

.section-head p {
  margin-bottom: 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 700;
  margin-bottom: 0.55rem;
}

/* Intro */
.intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.intro-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  min-height: 280px;
}

.intro-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose h2,
.prose h3 {
  margin-top: 1.6rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.checklist li {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.6rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

/* Categories */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.category-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  padding: 1.1rem 0.8rem 1.2rem;
  background: rgba(26, 39, 64, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.category-item:hover {
  border-color: rgba(61, 184, 255, 0.45);
  transform: translateY(-4px);
  background: rgba(26, 39, 64, 0.9);
  color: var(--text);
}

.category-item img {
  width: 96px;
  height: 96px;
  object-fit: contain;
}

.category-item span {
  font-weight: 600;
  font-size: 0.95rem;
}

/* Article cards / lists */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
}

.article-card {
  display: flex;
  flex-direction: column;
  background: transparent;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1rem;
  color: inherit;
  height: 100%;
}

.article-card:hover {
  color: inherit;
}

.article-card:hover h3 {
  color: var(--accent);
}

.article-card .thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 12px;
  background: var(--surface);
  margin-bottom: 0.9rem;
  border: 1px solid var(--line);
}

.article-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.article-card:hover .thumb img {
  transform: scale(1.04);
}

.article-card .meta {
  font-size: 0.78rem;
  color: var(--accent-2);
  margin-bottom: 0.35rem;
  font-weight: 600;
}

.article-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.45rem;
  color: var(--text);
}

.article-card p {
  font-size: 0.92rem;
  margin: 0;
}

/* Featured row */
.featured-row {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1.25rem;
}

.feature-main {
  position: relative;
  min-height: 360px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  display: flex;
  align-items: flex-end;
}

.feature-main img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.feature-main::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(6, 12, 22, 0.92) 10%, rgba(6, 12, 22, 0.2) 70%);
  z-index: 1;
}

.feature-main .copy {
  position: relative;
  z-index: 2;
  padding: 1.5rem;
}

.feature-main h3 {
  font-size: 1.45rem;
  color: #fff;
}

.feature-side {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.feature-side a {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0.85rem;
  align-items: center;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
  color: inherit;
}

.feature-side a img {
  width: 110px;
  height: 74px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.feature-side h3 {
  font-size: 0.98rem;
  margin: 0 0 0.25rem;
  color: var(--text);
}

.feature-side p {
  margin: 0;
  font-size: 0.85rem;
}

/* Brands */
.brand-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: center;
}

.brand-strip img {
  height: 36px;
  width: auto;
  opacity: 0.75;
  filter: grayscale(0.2);
  transition: opacity 0.2s ease;
}

.brand-strip img:hover {
  opacity: 1;
}

/* FAQ */
.faq-list {
  display: grid;
  gap: 0.75rem;
  max-width: 860px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(18, 27, 46, 0.65);
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.15rem;
  font-weight: 600;
  color: var(--text);
  position: relative;
  padding-right: 2.5rem;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 1.2rem;
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-item .faq-body {
  padding: 0 1.15rem 1.1rem;
  color: var(--muted);
}

/* Page hero compact */
.page-hero {
  padding: 2.6rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(30, 224, 176, 0.05), transparent);
}

.page-hero h1 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.breadcrumb a {
  color: var(--muted);
}

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

.breadcrumb span {
  opacity: 0.5;
}

/* Article detail */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
  padding: 2.5rem 0 4rem;
}

.article-cover {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  margin-bottom: 1.5rem;
  aspect-ratio: 16 / 9;
  background: var(--surface);
}

.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-body {
  font-size: 1.02rem;
}

.article-body p,
.article-body li {
  color: #b7c7db;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  font-size: 0.86rem;
  color: var(--muted);
  margin-bottom: 1.2rem;
}

.sidebar-box {
  border-top: 2px solid var(--accent);
  padding-top: 1rem;
  margin-bottom: 1.5rem;
}

.sidebar-box h3 {
  font-size: 1rem;
  margin-bottom: 0.85rem;
}

.related-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-list li {
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.related-list a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.92rem;
}

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

/* List pages */
.list-grid {
  display: grid;
  gap: 1.25rem;
  padding: 2.5rem 0 4rem;
}

.list-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  color: inherit;
}

.list-item:hover {
  color: inherit;
}

.list-item .thumb {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 10;
  background: var(--surface);
}

.list-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.list-item h2 {
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.list-item:hover h2 {
  color: var(--accent);
}

/* Category showcase page */
.genre-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  padding: 2.5rem 0 4rem;
}

.genre-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: rgba(18, 27, 46, 0.5);
}

.genre-block img {
  width: 100%;
  max-height: 160px;
  object-fit: contain;
  margin-bottom: 1rem;
}

.genre-block h2 {
  font-size: 1.15rem;
}

/* Error pages */
.error-page {
  min-height: calc(100vh - var(--header-h));
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 1rem;
}

.error-page .code {
  font-family: var(--display);
  font-size: clamp(4rem, 12vw, 7rem);
  line-height: 1;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: #080e18;
  padding: 3rem 0 1.5rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.footer-grid h3 {
  font-size: 0.95rem;
  margin-bottom: 0.9rem;
  color: #fff;
}

.footer-grid a {
  display: block;
  color: var(--muted);
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
}

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

.footer-brand img {
  height: 36px;
  width: auto;
  margin-bottom: 0.85rem;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.promo-banner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(61, 184, 255, 0.08), rgba(30, 224, 176, 0.05));
}

.promo-banner img {
  width: 100%;
  max-height: 220px;
  object-fit: contain;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(61, 184, 255, 0.12);
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

@media (max-width: 980px) {
  .nav-desktop,
  .header-actions {
    display: none;
  }

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

  .mobile-nav {
    display: block;
  }

  .intro-grid,
  .featured-row,
  .article-layout,
  .promo-banner,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .card-grid,
  .genre-grid {
    grid-template-columns: 1fr 1fr;
  }

  .list-item {
    grid-template-columns: 140px 1fr;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 64px;
  }

  .brand img {
    height: 32px;
    max-height: 32px;
  }

  .brand-text {
    font-size: 1rem;
  }

  .hero {
    min-height: 70vh;
  }

  .hero-content {
    margin-bottom: 2.2rem;
  }

  .category-grid,
  .card-grid,
  .genre-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-side a {
    grid-template-columns: 88px 1fr;
  }

  .feature-side a img {
    width: 88px;
    height: 64px;
  }

  .section {
    padding: 3rem 0;
  }
}