/* ============================================================
 * Color Game - design.css
 * Mobile-first PH casino landing page styling
 * All custom classes use the ui16- prefix
 * Palette: #0C0C0C bg, #E0FFFF/#AFEEEE text, #48D1CC accent, #E5E5E5 mute
 * ============================================================ */

:root {
  --ui16-bg: #0C0C0C;
  --ui16-bg-2: #161616;
  --ui16-bg-3: #1f2424;
  --ui16-text: #E0FFFF;
  --ui16-muted: #AFEEEE;
  --ui16-accent: #48D1CC;
  --ui16-accent-2: #5fded8;
  --ui16-soft: #E5E5E5;
  --ui16-border: rgba(72, 209, 204, 0.18);
  --ui16-radius: 12px;
  --ui16-header-h: 60px;
  --ui16-bottomnav-h: 62px;
  --ui16-shadow: 0 4px 18px rgba(0, 0, 0, 0.45);
}

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--ui16-bg);
  color: var(--ui16-text);
  font-size: 1.5rem;
  line-height: 1.5rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--ui16-accent); text-decoration: none; }

/* Layout */
.ui16-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 14px;
}
.ui16-wrapper {
  padding-top: var(--ui16-header-h);
  padding-bottom: calc(var(--ui16-bottomnav-h) + 20px);
  min-height: 100vh;
}

/* Header */
.ui16-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--ui16-header-h);
  background: linear-gradient(180deg, #0f1414 0%, #0a0f0f 100%);
  border-bottom: 1px solid var(--ui16-border);
  z-index: 1000;
  box-shadow: var(--ui16-shadow);
}
.ui16-header-inner {
  max-width: 430px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
}
.ui16-brand {
  display: flex; align-items: center; gap: 8px;
  color: var(--ui16-text);
  font-weight: 800; font-size: 1.7rem;
  letter-spacing: .3px;
}
.ui16-brand img { width: 28px; height: 28px; border-radius: 6px; }
.ui16-brand small { color: var(--ui16-accent); font-size: 1rem; font-weight: 600; }

.ui16-header-actions { display: flex; align-items: center; gap: 8px; }
.ui16-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 36px; padding: 0 14px;
  border: none; border-radius: 20px;
  font-size: 1.3rem; font-weight: 700;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
  color: #06201f;
  background: linear-gradient(135deg, var(--ui16-accent), var(--ui16-accent-2));
  box-shadow: 0 2px 8px rgba(72, 209, 204, 0.35);
}
.ui16-btn:hover { transform: translateY(-1px); }
.ui16-btn:active { transform: scale(.97); }
.ui16-btn-outline {
  background: transparent;
  color: var(--ui16-text);
  border: 1.5px solid var(--ui16-accent);
  box-shadow: none;
}
.ui16-icon-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--ui16-border);
  background: var(--ui16-bg-2);
  color: var(--ui16-text);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  cursor: pointer;
}

/* Mobile dropdown menu */
.ui16-mobile-menu {
  position: fixed;
  top: var(--ui16-header-h); left: 0; right: 0;
  background: #0b1111;
  border-bottom: 1px solid var(--ui16-border);
  max-height: 0; overflow: hidden;
  transition: max-height .28s ease;
  z-index: 9999;
}
.ui16-mobile-menu.ui16-menu-open { max-height: 480px; }
.ui16-mobile-menu nav {
  max-width: 430px; margin: 0 auto;
  padding: 10px 14px 16px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.ui16-mobile-menu a {
  display: block;
  padding: 12px 12px;
  border-radius: 10px;
  background: var(--ui16-bg-3);
  color: var(--ui16-text);
  font-size: 1.35rem; font-weight: 600;
  border: 1px solid var(--ui16-border);
}
.ui16-mobile-menu a:active { background: var(--ui16-accent); color: #06201f; }

/* Carousel */
.ui16-carousel {
  position: relative;
  width: 100%;
  border-radius: var(--ui16-radius);
  overflow: hidden;
  margin: 14px 0;
  aspect-ratio: 16 / 8;
  box-shadow: var(--ui16-shadow);
}
.ui16-slide {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity .6s ease;
  display: flex; align-items: flex-end;
  padding: 14px;
}
.ui16-slide.ui16-slide-active { opacity: 1; }
.ui16-slide::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,.75) 100%);
}
.ui16-slide a {
  position: relative; z-index: 2;
  color: var(--ui16-text);
  font-weight: 800; font-size: 1.5rem;
  background: rgba(72,209,204,.92);
  padding: 8px 14px; border-radius: 18px;
  margin-bottom: 6px;
}

/* Section */
.ui16-section { margin: 22px 0; }
.ui16-section-title {
  font-size: 1.8rem; font-weight: 800;
  color: var(--ui16-text);
  margin-bottom: 10px;
  padding-left: 10px;
  border-left: 4px solid var(--ui16-accent);
  line-height: 1.4;
}
.ui16-section-title .ui16-en {
  display: block; font-size: 1.15rem; color: var(--ui16-muted); font-weight: 500;
}
.ui16-intro {
  color: var(--ui16-soft);
  font-size: 1.4rem; line-height: 2.2rem;
  margin-bottom: 12px;
}
.ui16-intro strong { color: var(--ui16-accent); }
.ui16-intro a { font-weight: 700; border-bottom: 1px dashed var(--ui16-accent); }

/* Category title */
.ui16-cat-head {
  display: flex; align-items: center; gap: 8px;
  margin: 18px 0 10px;
}
.ui16-cat-head i { color: var(--ui16-accent); font-size: 1.9rem; }
.ui16-cat-head h2 {
  font-size: 1.55rem; font-weight: 700; color: var(--ui16-text);
}

/* Game grid */
.ui16-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.ui16-game {
  background: var(--ui16-bg-2);
  border: 1px solid var(--ui16-border);
  border-radius: 10px;
  padding: 6px;
  text-align: center;
  cursor: pointer;
  transition: transform .15s ease, border-color .15s ease;
  overflow: hidden;
}
.ui16-game:hover { transform: translateY(-2px); border-color: var(--ui16-accent); }
.ui16-game img {
  width: 100%; aspect-ratio: 1; object-fit: cover;
  border-radius: 8px; background: #0a0f0f;
}
.ui16-game-name {
  font-size: 1.15rem; color: var(--ui16-text);
  margin-top: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Card blocks */
.ui16-card {
  background: linear-gradient(160deg, #131a1a, #0e1313);
  border: 1px solid var(--ui16-border);
  border-radius: var(--ui16-radius);
  padding: 14px;
  margin-bottom: 12px;
}
.ui16-card h3 {
  font-size: 1.45rem; color: var(--ui16-text);
  margin-bottom: 8px; font-weight: 700;
}
.ui16-card p { color: var(--ui16-soft); font-size: 1.32rem; line-height: 2rem; }
.ui16-card .ui16-card-cta {
  display: inline-block; margin-top: 10px;
  font-weight: 800; color: #06201f;
  background: var(--ui16-accent);
  padding: 7px 14px; border-radius: 16px; font-size: 1.25rem;
}

/* Feature list */
.ui16-feature-list { list-style: none; }
.ui16-feature-list li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--ui16-border);
  color: var(--ui16-soft);
  font-size: 1.32rem; line-height: 1.95rem;
  display: flex; gap: 8px;
}
.ui16-feature-list li i { color: var(--ui16-accent); margin-top: 3px; }

/* Steps */
.ui16-steps { counter-reset: step; }
.ui16-step {
  position: relative;
  padding: 10px 10px 10px 46px;
  margin-bottom: 8px;
  background: var(--ui16-bg-2);
  border-radius: 10px;
  border-left: 3px solid var(--ui16-accent);
}
.ui16-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; left: 10px; top: 12px;
  width: 26px; height: 26px;
  background: var(--ui16-accent); color: #06201f;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.3rem;
}
.ui16-step strong { color: var(--ui16-text); }
.ui16-step span { color: var(--ui16-soft); font-size: 1.3rem; }

/* FAQ */
.ui16-faq { border-top: 1px solid var(--ui16-border); }
.ui16-faq-item { border-bottom: 1px solid var(--ui16-border); }
.ui16-faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 4px; cursor: pointer;
  font-weight: 700; color: var(--ui16-text); font-size: 1.35rem;
}
.ui16-faq-q .ui16-plus { color: var(--ui16-accent); font-size: 1.6rem; }
.ui16-faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .3s ease;
  color: var(--ui16-soft); font-size: 1.28rem; line-height: 1.9rem;
}
.ui16-faq-open .ui16-faq-a { max-height: 320px; padding-bottom: 10px; }

/* RTP / stats bars */
.ui16-rtp-row { margin-bottom: 10px; }
.ui16-rtp-row .ui16-rtp-top {
  display: flex; justify-content: space-between;
  font-size: 1.25rem; margin-bottom: 4px; color: var(--ui16-muted);
}
.ui16-rtp-bar {
  height: 8px; background: #0a0f0f;
  border-radius: 5px; overflow: hidden;
  border: 1px solid var(--ui16-border);
}
.ui16-rtp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--ui16-accent), #9be8e3);
  border-radius: 5px;
}

/* Testimonials */
.ui16-testi-grid {
  display: grid; grid-template-columns: 1fr; gap: 10px;
}
.ui16-testi {
  background: var(--ui16-bg-2);
  border: 1px solid var(--ui16-border);
  border-radius: 10px; padding: 12px;
}
.ui16-testi-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.ui16-testi-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--ui16-accent); color: #06201f;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
}
.ui16-testi-name { font-weight: 700; color: var(--ui16-text); font-size: 1.3rem; }
.ui16-stars { color: #f5c451; font-size: 1.15rem; }
.ui16-testi p { color: var(--ui16-soft); font-size: 1.25rem; line-height: 1.8rem; }

/* Payment chips */
.ui16-pay-row {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.ui16-pay {
  background: var(--ui16-bg-2);
  border: 1px solid var(--ui16-border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 1.2rem; color: var(--ui16-text);
  display: inline-flex; align-items: center; gap: 6px;
}
.ui16-pay i { color: var(--ui16-accent); }

/* Winners ticker */
.ui16-winners {
  display: grid; grid-template-columns: 1fr; gap: 6px;
}
.ui16-winner {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--ui16-bg-2);
  border: 1px solid var(--ui16-border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 1.22rem;
}
.ui16-winner .ui16-wname { color: var(--ui16-text); }
.ui16-winner .ui16-wamount { color: var(--ui16-accent); font-weight: 800; }

/* CTA banner */
.ui16-cta {
  background: linear-gradient(135deg, #0e2a29, #15302f);
  border: 1px solid var(--ui16-accent);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
  margin: 18px 0;
}
.ui16-cta h3 { color: var(--ui16-text); font-size: 1.6rem; margin-bottom: 6px; }
.ui16-cta p { color: var(--ui16-soft); font-size: 1.3rem; margin-bottom: 10px; }
.ui16-cta .ui16-btn { font-size: 1.45rem; height: 42px; padding: 0 22px; }

/* Footer */
.ui16-footer {
  background: #060a0a;
  border-top: 1px solid var(--ui16-border);
  padding: 20px 0 calc(var(--ui16-bottomnav-h) + 20px);
  margin-top: 24px;
}
.ui16-footer-brand {
  color: var(--ui16-muted);
  font-size: 1.28rem; line-height: 1.9rem;
  margin-bottom: 14px;
}
.ui16-footer-brand strong { color: var(--ui16-text); }
.ui16-footer-links {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  margin-bottom: 14px;
}
.ui16-footer-links a {
  color: var(--ui16-soft);
  font-size: 1.2rem;
  padding: 4px 0;
}
.ui16-footer-promo {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 14px;
}
.ui16-footer-copy {
  color: #6f8a89; font-size: 1.15rem; text-align: center;
  border-top: 1px dashed var(--ui16-border);
  padding-top: 10px;
}

/* Bottom navigation */
.ui16-bottomnav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--ui16-bottomnav-h);
  background: linear-gradient(180deg, #0f1414, #060a0a);
  border-top: 1px solid var(--ui16-border);
  display: flex; justify-content: space-around; align-items: stretch;
  z-index: 1000;
  box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.5);
}
.ui16-bottomnav-btn {
  flex: 1;
  min-width: 60px; min-height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2px;
  background: transparent; border: none;
  color: var(--ui16-muted);
  font-size: 1.05rem;
  cursor: pointer;
  transition: color .15s ease, transform .15s ease;
  text-decoration: none;
  padding: 4px 0;
}
.ui16-bottomnav-btn i,
.ui16-bottomnav-btn .material-icons-outlined,
.ui16-bottomnav-btn ion-icon {
  font-size: 2.2rem;
}
.ui16-bottomnav-btn ion-icon { width: 22px; height: 22px; }
.ui16-bottomnav-btn:active { transform: scale(.9); }
.ui16-bottomnav-active,
.ui16-bottomnav-btn:hover {
  color: var(--ui16-accent);
}
.ui16-bottomnav-promo {
  color: #ffd76b;
}
.ui16-bottomnav-promo:hover { color: #ffe39a; }

/* Hide bottom nav on desktop */
@media (min-width: 769px) {
  .ui16-bottomnav { display: none; }
  .ui16-footer { padding-bottom: 30px; }
  .ui16-wrapper { padding-bottom: 40px; }
}

/* Desktop tweaks */
@media (min-width: 769px) {
  body { background: #050808; }
  .ui16-container { max-width: 760px; }
  .ui16-header-inner { max-width: 760px; }
  .ui16-grid { grid-template-columns: repeat(6, 1fr); }
  .ui16-testi-grid { grid-template-columns: 1fr 1fr; }
}

/* Mobile bottom padding guard */
@media (max-width: 768px) {
  main.ui16-main { padding-bottom: calc(var(--ui16-bottomnav-h) + 16px); }
}