/**
 * Nino Games - Main Stylesheet
 * Class prefix: ui25-
 * CSS variable prefix: --ui25-
 * Mobile-first design (max-width: 430px base)
 */

/* ===== CSS Variables ===== */
:root {
  --ui25-primary: #CD853F;
  --ui25-bg: #1A1A1A;
  --ui25-text: #FAF0E6;
  --ui25-accent: #708090;
  --ui25-muted: #999999;
  --ui25-dim: #696969;
  --ui25-dark: #1A1A1A;
  --ui25-card-bg: #2a2a2a;
  --ui25-border: #3a3a3a;
  --ui25-header-h: 56px;
  --ui25-bottom-nav-h: 60px;
  --ui25-radius: 8px;
  --ui25-radius-sm: 4px;
  --ui25-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background-color: var(--ui25-bg);
  color: var(--ui25-text);
  line-height: 1.6;
  font-size: 14px;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--ui25-primary);
  text-decoration: none;
}

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

/* ===== Header ===== */
.ui25-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: var(--ui25-header-h);
  background: var(--ui25-dark);
  border-bottom: 1px solid var(--ui25-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  z-index: 1000;
}

.ui25-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ui25-logo {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.ui25-site-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ui25-primary);
  white-space: nowrap;
}

.ui25-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ui25-btn {
  padding: 6px 14px;
  border: none;
  border-radius: var(--ui25-radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}

.ui25-btn:active {
  transform: scale(0.95);
}

.ui25-btn-register {
  background: var(--ui25-primary);
  color: var(--ui25-dark);
}

.ui25-btn-login {
  background: transparent;
  color: var(--ui25-text);
  border: 1px solid var(--ui25-accent);
}

.ui25-hamburger {
  background: none;
  border: none;
  color: var(--ui25-text);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

/* ===== Mobile Side Menu ===== */
.ui25-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.ui25-overlay-active {
  opacity: 1;
  visibility: visible;
}

.ui25-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--ui25-dark);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
  padding: 20px;
  border-left: 1px solid var(--ui25-border);
}

.ui25-menu-open {
  right: 0;
}

.ui25-menu-closed {
  right: -280px;
}

.ui25-menu-close {
  background: none;
  border: none;
  color: var(--ui25-text);
  font-size: 22px;
  cursor: pointer;
  float: right;
  margin-bottom: 16px;
}

.ui25-menu-links {
  list-style: none;
  clear: both;
}

.ui25-menu-links li {
  border-bottom: 1px solid var(--ui25-border);
}

.ui25-menu-links a {
  display: block;
  padding: 12px 0;
  color: var(--ui25-text);
  font-size: 14px;
  transition: color 0.2s;
}

.ui25-menu-links a:hover {
  color: var(--ui25-primary);
}

/* ===== Main Content ===== */
.ui25-main {
  padding-top: var(--ui25-header-h);
  min-height: 100vh;
}

@media (max-width: 768px) {
  .ui25-main {
    padding-bottom: calc(var(--ui25-bottom-nav-h) + 20px);
  }
}

/* ===== Carousel ===== */
.ui25-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16 / 7;
}

.ui25-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.ui25-slide-active {
  opacity: 1;
}

.ui25-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ui25-carousel-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}

.ui25-carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(250, 240, 230, 0.4);
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}

.ui25-dot-active {
  background: var(--ui25-primary);
}

/* ===== Tab Navigation ===== */
.ui25-tabs {
  display: flex;
  overflow-x: auto;
  gap: 4px;
  padding: 12px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.ui25-tabs::-webkit-scrollbar {
  display: none;
}

.ui25-tab-btn {
  flex-shrink: 0;
  padding: 8px 14px;
  background: var(--ui25-card-bg);
  color: var(--ui25-muted);
  border: 1px solid var(--ui25-border);
  border-radius: var(--ui25-radius);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.ui25-tab-active {
  background: var(--ui25-primary);
  color: var(--ui25-dark);
  border-color: var(--ui25-primary);
}

/* ===== Game Grid ===== */
.ui25-tab-panel {
  display: none;
  padding: 0 12px 12px;
}

.ui25-panel-active {
  display: block;
}

.ui25-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.ui25-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s;
}

.ui25-game-item:active {
  transform: scale(0.95);
}

.ui25-game-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--ui25-radius);
  object-fit: cover;
  border: 1px solid var(--ui25-border);
  margin-bottom: 4px;
}

.ui25-game-name {
  font-size: 11px;
  color: var(--ui25-text);
  text-align: center;
  line-height: 1.3;
  max-width: 76px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Content Sections ===== */
.ui25-section {
  padding: 20px 16px;
}

.ui25-section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ui25-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--ui25-primary);
}

.ui25-section p {
  margin-bottom: 10px;
  color: var(--ui25-text);
  line-height: 1.7;
  font-size: 13px;
}

.ui25-section ul, .ui25-section ol {
  padding-left: 20px;
  margin-bottom: 12px;
}

.ui25-section li {
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--ui25-text);
  line-height: 1.6;
}

/* ===== Promo Banner ===== */
.ui25-promo-banner {
  background: linear-gradient(135deg, var(--ui25-primary), #a06828);
  border-radius: var(--ui25-radius);
  padding: 16px;
  margin: 16px 12px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s;
}

.ui25-promo-banner:active {
  transform: scale(0.98);
}

.ui25-promo-banner h3 {
  color: var(--ui25-dark);
  font-size: 16px;
  margin-bottom: 6px;
}

.ui25-promo-banner p {
  color: var(--ui25-dark);
  font-size: 13px;
  opacity: 0.9;
}

/* ===== Cards ===== */
.ui25-card {
  background: var(--ui25-card-bg);
  border-radius: var(--ui25-radius);
  padding: 16px;
  margin-bottom: 12px;
  border: 1px solid var(--ui25-border);
}

.ui25-card h3 {
  color: var(--ui25-primary);
  font-size: 15px;
  margin-bottom: 8px;
}

.ui25-card p {
  font-size: 13px;
  color: var(--ui25-text);
  line-height: 1.6;
}

/* ===== Feature Grid ===== */
.ui25-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.ui25-feature-item {
  background: var(--ui25-card-bg);
  border-radius: var(--ui25-radius);
  padding: 14px;
  text-align: center;
  border: 1px solid var(--ui25-border);
}

.ui25-feature-item i,
.ui25-feature-item .material-icons {
  font-size: 28px;
  color: var(--ui25-primary);
  margin-bottom: 8px;
  display: block;
}

.ui25-feature-item h4 {
  color: var(--ui25-text);
  font-size: 13px;
  margin-bottom: 4px;
}

.ui25-feature-item p {
  font-size: 11px;
  color: var(--ui25-muted);
}

/* ===== FAQ ===== */
.ui25-faq-item {
  background: var(--ui25-card-bg);
  border-radius: var(--ui25-radius);
  padding: 14px;
  margin-bottom: 10px;
  border: 1px solid var(--ui25-border);
}

.ui25-faq-item h4 {
  color: var(--ui25-primary);
  font-size: 14px;
  margin-bottom: 6px;
}

.ui25-faq-item p {
  font-size: 13px;
  color: var(--ui25-text);
  line-height: 1.6;
}

/* ===== Footer ===== */
.ui25-footer {
  background: #111111;
  padding: 24px 16px;
  border-top: 1px solid var(--ui25-border);
}

.ui25-footer-brand {
  text-align: center;
  margin-bottom: 20px;
}

.ui25-footer-brand p {
  font-size: 12px;
  color: var(--ui25-muted);
  line-height: 1.6;
}

.ui25-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
  margin-bottom: 16px;
}

.ui25-footer-links a {
  font-size: 12px;
  color: var(--ui25-accent);
  transition: color 0.2s;
}

.ui25-footer-links a:hover {
  color: var(--ui25-primary);
}

.ui25-footer-copy {
  text-align: center;
  font-size: 11px;
  color: var(--ui25-dim);
  margin-top: 12px;
}

.ui25-partners {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.ui25-partners img {
  height: 24px;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.ui25-partners img:hover {
  opacity: 1;
}

/* ===== Bottom Navigation ===== */
.ui25-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: var(--ui25-bottom-nav-h);
  background: var(--ui25-dark);
  border-top: 1px solid var(--ui25-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  padding: 0 4px;
}

.ui25-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 52px;
  background: none;
  border: none;
  color: var(--ui25-muted);
  cursor: pointer;
  transition: color 0.2s, transform 0.15s;
  gap: 2px;
}

.ui25-nav-btn:active {
  transform: scale(0.9);
}

.ui25-nav-btn i,
.ui25-nav-btn .material-icons {
  font-size: 22px;
}

.ui25-nav-btn span {
  font-size: 10px;
  font-weight: 500;
}

.ui25-nav-btn.ui25-nav-active {
  color: var(--ui25-primary);
}

/* ===== Utilities ===== */
.ui25-text-center { text-align: center; }
.ui25-text-primary { color: var(--ui25-primary); }
.ui25-text-muted { color: var(--ui25-muted); }
.ui25-mb-0 { margin-bottom: 0; }
.ui25-mb-1 { margin-bottom: 8px; }
.ui25-mb-2 { margin-bottom: 16px; }
.ui25-mt-1 { margin-top: 8px; }
.ui25-mt-2 { margin-top: 16px; }

/* ===== Responsive ===== */
@media (min-width: 769px) {
  .ui25-bottom-nav {
    display: none;
  }

  .ui25-hamburger {
    display: none;
  }

  body {
    max-width: 768px;
  }

  .ui25-header {
    max-width: 768px;
  }

  .ui25-game-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
  }

  .ui25-game-icon {
    width: 88px;
    height: 88px;
  }

  .ui25-feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== Touch Device ===== */
.ui25-touch-device .ui25-game-item:hover,
.ui25-touch-device .ui25-nav-btn:hover {
  transform: none;
}