/* ============================================
   TienHui Component Library
   Depends on: variables.css, animations.css
   ============================================ */

/* ── Full Width CTA ──────────────────────────────────────────── */
.zalo-full {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 280px;
  padding: 14px 24px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  min-height: 44px;
}
.zalo-full svg { width: 22px; height: 22px; flex-shrink: 0; }

.zalo-full-blue {
  background: var(--color-zalo);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(var(--color-zalo-rgb),0.35);
}
.zalo-full-blue:hover {
  box-shadow: 0 6px 28px rgba(var(--color-zalo-rgb),0.5);
  transform: translateY(-1px);
}
.zalo-full-white {
  background: var(--color-white);
  color: var(--color-zalo);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}
.zalo-full-outline {
  background: transparent;
  color: var(--color-zalo);
  border: 2px solid var(--color-zalo);
}

/* ── Pill / Compact ──────────────────────────────────────────── */
.zalo-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  min-height: 44px;
}
.zalo-pill svg { width: 18px; height: 18px; }

.zalo-pill-blue {
  background: var(--color-zalo);
  color: var(--color-white);
  box-shadow: 0 3px 12px rgba(var(--color-zalo-rgb),0.3);
}
.zalo-pill-ghost {
  background: rgba(var(--color-zalo-rgb),0.08);
  color: var(--color-zalo);
  border: 1px solid rgba(var(--color-zalo-rgb),0.2);
}
.zalo-pill-glass {
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.3);
}
.zalo-pill-white {
  background: var(--color-white);
  color: var(--color-zalo);
  box-shadow: 0 3px 12px rgba(0,0,0,0.15);
}

/* ── FAB ─────────────────────────────────────────────────────── */
.zalo-fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
}
.zalo-fab svg { width: 28px; height: 28px; }

.zalo-fab-blue {
  background: var(--color-zalo);
  box-shadow: 0 4px 20px rgba(var(--color-zalo-rgb),0.4);
}
.zalo-fab-blue:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(var(--color-zalo-rgb),0.55);
}
.zalo-fab-green {
  background: var(--gradient-brand);
  box-shadow: 0 4px 20px rgba(var(--color-primary-rgb),0.4);
}
.zalo-fab-sm { width: 52px; height: 52px; }
.zalo-fab-sm svg { width: 24px; height: 24px; }

/* ── Card ────────────────────────────────────────────────────── */
.zalo-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-white);
  border-radius: 16px;
  padding: 16px 20px;
  width: 280px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  min-height: 44px;
}
.zalo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.zalo-card .zc-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.zalo-card .zc-icon svg { width: 24px; height: 24px; }
.zalo-card .zc-text h4 { font-size: 14px; color: #1a1a1a; font-weight: 700; margin-bottom: 2px; }
.zalo-card .zc-text p  { font-size: 11px; color: #888; }
.zalo-card .zc-arrow   { margin-left: auto; }
.zalo-card .zc-arrow svg { width: 18px; height: 18px; }

.zalo-card-accent { border-left: 4px solid var(--color-zalo); }
.zc-icon-solid    { background: var(--color-zalo); }
.zc-icon-light    { background: rgba(var(--color-zalo-rgb),0.08); }

/* ── Sticky Bottom Bar ───────────────────────────────────────── */
.sticky-demo {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  border-radius: 20px 20px 0 0;
  background: var(--color-white);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  z-index: 100;
}
.sticky-top {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid #f0f0f0;
}
.sticky-top .st-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-zalo);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sticky-top .st-icon svg { width: 20px; height: 20px; }
.sticky-top .st-info h4 { font-size: 13px; color: #1a1a1a; font-weight: 600; }
.sticky-top .st-info p  { font-size: 10px; color: #888; }
.st-online {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 6px rgba(76,175,80,0.6);
  margin-left: auto;
  flex-shrink: 0;
}
.sticky-btns {
  display: flex;
  gap: 10px;
  padding: 12px 18px calc(16px + env(safe-area-inset-bottom));
}
.sticky-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  min-height: 44px;
}
.sticky-btn svg { width: 16px; height: 16px; }
.sticky-btn-zalo  { background: var(--color-zalo);    color: var(--color-white); }
.sticky-btn-apply { background: var(--gradient-brand); color: var(--color-white); }

/* ── Dual Icon CTA ───────────────────────────────────────────── */
.dual-cta { display: flex; gap: 10px; width: 300px; }
.dc-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 12px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  min-height: 44px;
}
.dc-btn svg { width: 28px; height: 28px; }
.dc-btn.dc-zalo  {
  background: var(--color-zalo);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(var(--color-zalo-rgb),0.3);
}
.dc-btn.dc-apply {
  background: var(--gradient-brand);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(var(--color-primary-rgb),0.3);
}

/* ── Tooltip & Badges ────────────────────────────────────────── */
.tooltip-bubble {
  background: var(--color-white);
  border-radius: 12px;
  padding: 10px 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  max-width: 180px;
  position: relative;
}
.tooltip-bubble::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 6px solid var(--color-white);
}
.tooltip-bubble h5 { font-size: 11px; color: #333; font-weight: 500; }
.tooltip-bubble p  { font-size: 9px; color: #888; margin-top: 2px; }

.notif-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--color-red);
  color: var(--color-white);
  font-size: 10px;
  font-weight: 800;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(244,67,54,0.4);
}

.online-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 6px var(--color-bright);
  display: inline-block;
}

/* ============================================
   General UI Components
   ============================================ */

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

body {
  font-family: var(--ff-base);
  font-weight: var(--fw-body);
  color: var(--color-forest);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* --- Brand Logo --- */
.brand-logo {
  font-weight: var(--fw-logo);
  font-size: 2.5rem;
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand-logo .hui {
  color: var(--color-gold);
}

/* --- Cards --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--sp-lg);
}

/* --- Feature Icon Card --- */
.feature-card {
  text-align: center;
  padding: var(--sp-xl) var(--sp-lg);
}

.feature-card .icon {
  display: block;
  width: 48px;
  height: 48px;
  margin: 0 auto var(--sp-md);
  color: var(--color-primary);
}

/* --- Step Number Badge --- */
.step-number {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-h1);
  font-size: 1.1rem;
}

/* --- FAQ Accordion (uses native <details>) --- */
.faq-item {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.faq-item summary {
  cursor: pointer;
  font-weight: var(--fw-h2);
  padding: var(--sp-md) 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: var(--fw-body);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 0 var(--sp-md);
  color: #555;
  line-height: 1.7;
  font-size: 0.95rem;
}

/* --- CTA Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  min-height: var(--tap-min);
  padding: var(--sp-md) var(--sp-xl);
  background: var(--gradient-brand);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  font-weight: var(--fw-cta);
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-cta);
  transition: opacity 0.2s;
  width: 100%;
  max-width: 360px;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  min-height: var(--tap-min);
  padding: var(--sp-md) var(--sp-xl);
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  font-weight: var(--fw-cta);
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
  width: 100%;
  max-width: 360px;
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* --- Compliance Footer --- */
.compliance-footer {
  background: var(--color-forest);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--sp-2xl) var(--sp-lg);
  font-size: 0.75rem;
  line-height: 1.9;
}

.compliance-footer a {
  color: var(--color-bright);
  text-decoration: underline;
}

.compliance-footer svg {
  vertical-align: middle;
  margin-right: 2px;
}

/* --- Decorative Float Circles --- */
.float-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  background: var(--color-white);
  pointer-events: none;
}

/* --- Glass Pill Label --- */
.glass-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.38);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

/* --- Ad Page Base Container --- */
.ad-page {
  margin: 0;
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-base);
}

/* --- Testimonial Card --- */
.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--sp-lg);
  min-width: 260px;
  max-width: 300px;
}

.testimonial-card .stars {
  color: var(--color-gold);
  font-size: 0.9rem;
  margin-bottom: var(--sp-sm);
  letter-spacing: 2px;
}

.testimonial-card .reviewer {
  font-weight: var(--fw-h2);
  font-size: 0.9rem;
  margin-top: var(--sp-sm);
  color: var(--color-forest);
}

.testimonial-card .location {
  font-size: 0.8rem;
  color: #888;
}