/* ============================================================
 * fb777pro app login - design.css
 * All custom classes use the "vb84-" prefix.
 * Palette: #808080 | #0000CD | #F0F8FF | #48D1CC | #0D1117 | #FF1493
 * Mobile-first: max-width 430px primary, scales up to desktop.
 * ============================================================ */

:root {
  --vb84-bg: #0D1117;
  --vb84-bg-soft: #161d2a;
  --vb84-bg-card: #1b2436;
  --vb84-text: #F0F8FF;
  --vb84-text-dim: #c5cfdf;
  --vb84-primary: #0000CD;
  --vb84-accent: #48D1CC;
  --vb84-pink: #FF1493;
  --vb84-gray: #808080;
  --vb84-border: rgba(240, 248, 255, 0.08);
  --vb84-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  --vb84-radius: 14px;
  --vb84-radius-sm: 10px;
  --vb84-header-h: 58px;
  --vb84-bottom-h: 62px;
  --vb84-font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--vb84-font);
  background: var(--vb84-bg);
  color: var(--vb84-text);
  line-height: 1.55;
  font-size: 15px;
  overflow-x: hidden;
}

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

a { color: var(--vb84-accent); text-decoration: none; }
a:hover { color: var(--vb84-pink); }

h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; color: var(--vb84-text); }
h1 { font-size: 1.55rem; margin: 0.4rem 0; }
h2 { font-size: 1.3rem; margin: 0.8rem 0; }
h3 { font-size: 1.08rem; margin: 0.6rem 0; }
p  { margin: 0.5rem 0; color: var(--vb84-text-dim); }

.vb84-container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 14px; }
.vb84-wrapper { padding: 18px 0; }

/* ===== Header ===== */
.vb84-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--vb84-header-h);
  background: linear-gradient(90deg, #0b1224 0%, #111c3b 60%, #1a1450 100%);
  border-bottom: 1px solid var(--vb84-border);
  z-index: 1000;
  display: flex; align-items: center;
}
.vb84-header-inner {
  width: 100%; max-width: 1180px; margin: 0 auto;
  padding: 0 12px;
  display: flex; align-items: center; gap: 10px;
}
.vb84-logo {
  display: flex; align-items: center; gap: 8px;
  color: var(--vb84-text); font-weight: 800; font-size: 1rem;
  flex: 1; min-width: 0;
}
.vb84-logo img { width: 30px; height: 30px; border-radius: 8px; }
.vb84-logo small { color: var(--vb84-accent); font-size: 0.7rem; font-weight: 600; display: block; }

.vb84-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px; border-radius: 999px; font-weight: 700;
  font-size: 0.85rem; cursor: pointer; border: none; white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}
.vb84-btn:hover { transform: translateY(-1px); }
.vb84-btn-primary {
  background: linear-gradient(135deg, var(--vb84-pink), #ff5b9b);
  color: #fff; box-shadow: 0 4px 14px rgba(255, 20, 147, 0.4);
}
.vb84-btn-secondary {
  background: linear-gradient(135deg, var(--vb84-primary), #4a5cff);
  color: #fff; box-shadow: 0 4px 14px rgba(0, 0, 205, 0.45);
}
.vb84-btn-ghost {
  background: rgba(72, 209, 204, 0.12);
  color: var(--vb84-accent);
  border: 1px solid rgba(72, 209, 204, 0.35);
}
.vb84-header-btns { display: flex; gap: 8px; }
.vb84-menu-btn {
  background: transparent; border: none; color: var(--vb84-text);
  font-size: 1.4rem; padding: 4px 8px; cursor: pointer;
}

/* ===== Mobile menu ===== */
.vb84-menu-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55);
  opacity: 0; pointer-events: none; z-index: 9998; transition: opacity 0.25s ease;
}
.vb84-menu-backdrop.vb84-is-visible { opacity: 1; pointer-events: auto; }
.vb84-mobile-menu {
  position: fixed; top: 0; right: -280px; width: 270px; height: 100vh;
  background: var(--vb84-bg-soft); padding: 18px 14px;
  transform: translateX(0); transition: right 0.28s ease;
  z-index: 9999; overflow-y: auto;
}
.vb84-mobile-menu.vb84-is-open { right: 0; }
.vb84-mobile-menu h4 { color: var(--vb84-accent); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; margin: 14px 6px 6px; }
.vb84-mobile-menu a {
  display: block; padding: 9px 10px; color: var(--vb84-text);
  border-radius: 8px; font-size: 0.92rem;
}
.vb84-mobile-menu a:hover { background: rgba(72, 209, 204, 0.1); color: var(--vb84-accent); }
.vb84-menu-close {
  background: transparent; border: none; color: var(--vb84-text);
  font-size: 1.4rem; float: right; cursor: pointer;
}

/* ===== Main / Sections ===== */
main { padding-top: calc(var(--vb84-header-h) + 6px); padding-bottom: 20px; }

.vb84-section { padding: 18px 0; }
.vb84-section-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.2rem; margin-bottom: 8px;
}
.vb84-section-title i { color: var(--vb84-pink); }
.vb84-section-intro { color: var(--vb84-text-dim); font-size: 0.92rem; margin-bottom: 10px; }

/* ===== Hero carousel ===== */
.vb84-hero {
  position: relative; border-radius: var(--vb84-radius); overflow: hidden;
  margin: 10px 0 14px; box-shadow: var(--vb84-shadow);
}
.vb84-hero-track { position: relative; }
.vb84-hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 0.6s ease;
  display: flex; align-items: flex-end;
}
.vb84-hero-slide.vb84-active { opacity: 1; position: relative; }
.vb84-hero-slide img { width: 100%; height: 180px; object-fit: cover; }
.vb84-hero-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 10px 12px; color: #fff;
  background: linear-gradient(transparent, rgba(13, 17, 23, 0.88));
}
.vb84-hero-overlay h2 { color: #fff; font-size: 1.1rem; margin: 0; }
.vb84-hero-overlay p { color: #dde7f7; font-size: 0.8rem; margin: 2px 0; }
.vb84-hero-dots {
  position: absolute; bottom: 8px; right: 12px;
  display: flex; gap: 5px; z-index: 2;
}
.vb84-hero-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.45); cursor: pointer;
}
.vb84-hero-dot.vb84-active { background: var(--vb84-pink); }

/* ===== Games grid (compact tiles) ===== */
.vb84-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 10px; margin-top: 8px;
}
.vb84-tile {
  background: var(--vb84-bg-card); border-radius: var(--vb84-radius-sm);
  overflow: hidden; cursor: pointer; position: relative;
  border: 1px solid var(--vb84-border);
  transition: transform 0.15s ease, border-color 0.2s ease;
}
.vb84-tile:hover { transform: translateY(-2px); border-color: var(--vb84-pink); }
.vb84-tile img { width: 100%; height: 88px; object-fit: cover; }
.vb84-tile-name {
  padding: 5px 6px; font-size: 0.74rem; text-align: center;
  color: var(--vb84-text); font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.vb84-tile-badge {
  position: absolute; top: 5px; left: 5px;
  background: var(--vb84-pink); color: #fff;
  font-size: 0.6rem; padding: 2px 6px; border-radius: 4px;
  font-weight: 700; letter-spacing: 0.04em;
}
.vb84-tile-badge.vb84-hot { background: var(--vb84-pink); }
.vb84-tile-badge.vb84-new { background: var(--vb84-accent); color: #062a28; }

.vb84-filter-bar {
  display: flex; gap: 6px; overflow-x: auto; padding: 6px 0; margin-bottom: 6px;
  scrollbar-width: thin;
}
.vb84-filter-btn {
  background: var(--vb84-bg-card); color: var(--vb84-text-dim);
  border: 1px solid var(--vb84-border); border-radius: 999px;
  padding: 5px 12px; font-size: 0.78rem; cursor: pointer; white-space: nowrap;
}
.vb84-filter-btn.vb84-active {
  background: linear-gradient(135deg, var(--vb84-pink), var(--vb84-primary));
  color: #fff; border-color: transparent;
}

/* ===== Cards / content blocks ===== */
.vb84-card {
  background: var(--vb84-bg-card); border: 1px solid var(--vb84-border);
  border-radius: var(--vb84-radius); padding: 14px; margin: 10px 0;
}
.vb84-card h3 { color: var(--vb84-accent); }
.vb84-card p { font-size: 0.9rem; }

.vb84-row { display: flex; gap: 10px; flex-wrap: wrap; }
.vb84-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(72, 209, 204, 0.12); color: var(--vb84-accent);
  font-size: 0.78rem; font-weight: 600;
}

.vb84-faq-item {
  border-bottom: 1px solid var(--vb84-border); padding: 8px 0;
}
.vb84-faq-item h4 { color: var(--vb84-pink); font-size: 0.95rem; }
.vb84-faq-item p { font-size: 0.88rem; margin-top: 4px; }

.vb84-rtp-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0; border-bottom: 1px dashed var(--vb84-border); font-size: 0.88rem;
}
.vb84-rtp-bar {
  width: 80px; height: 6px; background: var(--vb84-bg);
  border-radius: 3px; overflow: hidden; margin-left: 8px;
}
.vb84-rtp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--vb84-accent), var(--vb84-pink));
}

.vb84-testimonial {
  background: var(--vb84-bg-card); padding: 10px 12px; border-radius: var(--vb84-radius-sm);
  border-left: 3px solid var(--vb84-pink); margin: 6px 0;
}
.vb84-testimonial .vb84-stars { color: #ffcc55; font-size: 0.8rem; }
.vb84-testimonial p { font-size: 0.85rem; font-style: italic; }
.vb84-testimonial span { display: block; font-size: 0.75rem; color: var(--vb84-gray); margin-top: 4px; }

.vb84-pay-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 8px;
}
.vb84-pay {
  background: var(--vb84-bg-card); border: 1px solid var(--vb84-border);
  border-radius: 8px; padding: 8px 4px; text-align: center; font-size: 0.72rem;
}
.vb84-pay i { font-size: 1.4rem; color: var(--vb84-accent); }

/* ===== Footer ===== */
.vb84-footer {
  background: linear-gradient(180deg, var(--vb84-bg) 0%, #060a13 100%);
  border-top: 1px solid var(--vb84-border); padding: 18px 0 10px;
  margin-top: 16px;
}
.vb84-footer-brand { font-weight: 800; color: var(--vb84-text); margin-bottom: 6px; }
.vb84-footer p { font-size: 0.82rem; color: var(--vb84-gray); }
.vb84-footer-links {
  display: flex; flex-wrap: wrap; gap: 6px 12px; margin: 10px 0;
}
.vb84-footer-links a {
  color: var(--vb84-text-dim); font-size: 0.82rem;
}
.vb84-footer-buttons {
  display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0;
}
.vb84-copy { font-size: 0.75rem; color: var(--vb84-gray); text-align: center; margin-top: 8px; }

/* ===== Bottom navigation (mobile only) ===== */
.vb84-bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: var(--vb84-bottom-h);
  background: linear-gradient(180deg, #0b1224 0%, #050811 100%);
  border-top: 1px solid rgba(72, 209, 204, 0.18);
  display: flex; justify-content: space-around; align-items: stretch;
  z-index: 1000;
}
.vb84-bottom-nav-btn {
  flex: 1; min-width: 60px; min-height: 60px;
  background: transparent; border: none; color: var(--vb84-text-dim);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; font-size: 0.66rem; cursor: pointer;
  transition: color 0.18s ease, transform 0.18s ease;
  position: relative;
}
.vb84-bottom-nav-btn i { font-size: 22px; }
.vb84-bottom-nav-btn .material-icons-outlined,
.vb84-bottom-nav-btn .material-icons { font-size: 22px; }
.vb84-bottom-nav-btn:hover { color: var(--vb84-accent); transform: translateY(-1px); }
.vb84-bottom-nav-btn.vb84-current { color: var(--vb84-pink); }
.vb84-bottom-nav-btn.vb84-current::after {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 26px; height: 3px; border-radius: 2px; background: var(--vb84-pink);
}

/* ===== Utility ===== */
.vb84-text-link {
  color: var(--vb84-pink); font-weight: 700; cursor: pointer;
  text-decoration: underline; text-underline-offset: 2px;
}
.vb84-text-link:hover { color: var(--vb84-accent); }

main { padding-bottom: calc(var(--vb84-bottom-h) + 16px); }

@media (max-width: 768px) {
  main { padding-bottom: 80px; }
}

/* ===== Responsive ===== */
@media (min-width: 600px) {
  .vb84-grid { grid-template-columns: repeat(4, 1fr); }
  .vb84-tile img { height: 100px; }
  .vb84-hero-slide img { height: 230px; }
  h1 { font-size: 1.75rem; }
}

@media (min-width: 769px) {
  .vb84-bottom-nav { display: none; }
  main { padding-bottom: 24px; }
  .vb84-menu-btn { display: none; }
  .vb84-grid { grid-template-columns: repeat(6, 1fr); }
  .vb84-pay-grid { grid-template-columns: repeat(6, 1fr); }
  .vb84-header-btns .vb84-hide-desktop { display: none; }
  .vb84-hero-slide img { height: 300px; }
}