/* ══════════════════════════════════════════════════════════════════════════════
   COUPON WEB ENGINE — CLEAN UTILITY CSS
   Designed for Maximum Speed (<0.2s), High Conversion & Zero AI Clutter
   ══════════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  
  --primary: #0f172a;
  --primary-hover: #334155;
  --primary-light: #e0f2fe;

  --accent-green: #65a30d;
  --accent-green-light: #f7fee7;
  --accent-green-border: #bef264;

  --accent-orange: #ea580c;
  --accent-orange-light: #ffedd5;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --radius: 8px;
}

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

html, body {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden !important;
  position: relative;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

/* TOP ADVERTISING DISCLOSURE BAR (FTC & GOOGLE ADS COMPLIANCE) */
.top-disclosure-bar {
  background: #f1f5f9;
  border-bottom: 1px solid #e2e8f0;
  font-size: 0.76rem;
  color: #64748b;
  padding: 6px 0;
  line-height: 1.4;
}
.top-disclosure-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.top-disclosure-left {
  display: flex;
  align-items: center;
  gap: 6px;
}
.top-disclosure-tag {
  background: #e2e8f0;
  color: #334155;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  letter-spacing: 0.3px;
}
.top-disclosure-link {
  color: #475569;
  font-weight: 600;
  text-decoration: underline;
  margin-left: 4px;
}
.top-disclosure-link:hover {
  color: #0f172a;
}

/* RELATED BRANDS / SIMILAR STORES SECTION */
.related-stores-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 14px;
}
.related-store-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.related-store-card:hover {
  border-color: #16a34a;
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(22, 163, 74, 0.1);
  text-decoration: none;
}
.related-store-logo {
  width: 76px;
  height: 44px;
  max-width: 76px;
  max-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  background: #f8fafc;
  border: 1px solid #f1f5f9;
  border-radius: 8px;
  padding: 4px;
  overflow: hidden;
  box-sizing: border-box;
}
.related-store-logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}
.related-store-name {
  font-weight: 700;
  font-size: 0.88rem;
  color: #0f172a;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}
.related-store-deal {
  font-size: 0.76rem;
  font-weight: 800;
  color: #16a34a;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  padding: 2px 8px;
  border-radius: 9999px;
  margin-top: 2px;
  display: inline-block;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .related-stores-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .related-store-card {
    padding: 12px 8px;
  }
}

/* NAVBAR */
.header-nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
}
.logo-badge {
  background: var(--accent-orange);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.search-box {
  flex: 1;
  max-width: 460px;
  margin: 0 24px;
  position: relative;
}
.search-input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  font-size: 0.9rem;
  background: #f1f5f9;
  outline: none;
  transition: all 0.2s;
}
.search-input:focus {
  background: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}
.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}
.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
}
.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.nav-link:hover {
  color: var(--primary);
  text-decoration: none;
}

/* TOP SITELINKS STRIP */
.sitelinks-strip {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 8px 0;
  font-size: 0.85rem;
}
.sitelinks-list {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
}
.sitelink-item {
  color: var(--text-secondary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}
.sitelink-item:hover {
  color: var(--primary);
}

/* BREADCRUMB */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-secondary);
}

/* STORE HEADER HERO */
.store-hero {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  gap: 20px;
}
.store-info-left {
  display: flex;
  align-items: center;
  gap: 20px;
}
.store-logo {
  width: 80px;
  height: 80px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: 8px;
  object-fit: contain;
  background: #ffffff;
}
.store-title-area h1 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.store-rating-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}
.rating-stars {
  color: #eab308;
  font-weight: 700;
}
.verified-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--accent-green-light);
  color: var(--accent-green);
  border: 1px solid var(--accent-green-border);
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
}
.btn-visit-store {
  background: #ffffff;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 20px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-visit-store:hover {
  background: var(--primary);
  color: #ffffff;
  text-decoration: none;
}

/* MAIN LAYOUT: TWO COLUMNS */
.layout-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  margin-bottom: 40px;
}

/* SHOPPING VERDICT / FAST FACTS BOX (E-E-A-T & HIGH CONVERSION) */
.verdict-box {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-left: 4px solid #16a34a;
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.verdict-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.verdict-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 800;
  color: #0f172a;
}
.verdict-badge {
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 9999px;
  letter-spacing: 0.3px;
}
.verdict-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.verdict-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.verdict-item-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.verdict-item-val {
  font-size: 0.86rem;
  color: #0f172a;
  font-weight: 600;
  line-height: 1.35;
}

@media (max-width: 640px) {
  .verdict-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* STORE COUPON FILTER TABS (PROMO CODES VS DEALS) */
.store-filter-tabs {
  display: flex;
  gap: 10px;
  margin-top: 4px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f1f5f9;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.store-tab-btn {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  color: #475569;
  font-size: 0.84rem;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
.store-tab-btn:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #0f172a;
}
.store-tab-btn.active {
  background: #0f172a;
  border-color: #0f172a;
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.15);
}
.store-tab-count {
  background: #e2e8f0;
  color: #475569;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 9999px;
}
.store-tab-btn.active .store-tab-count {
  background: rgba(255, 255, 255, 0.22);
  color: #ffffff;
}

/* COUPON CARDS */
.coupons-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.coupons-title {
  font-size: 1.25rem;
  font-weight: 800;
}
.coupons-count {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.coupon-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  display: grid;
  grid-template-columns: 120px 1fr 180px;
  gap: 20px;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
  position: relative;
}
.coupon-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}
.coupon-card.exclusive {
  border-color: #f97316;
  background: linear-gradient(180deg, #fffaf5 0%, #ffffff 100%);
}
.exclusive-badge {
  position: absolute;
  top: -10px;
  left: 16px;
  background: var(--accent-orange);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Left discount badge */
.coupon-badge-area {
  text-align: center;
  border-right: 1px dashed var(--border-color);
  padding-right: 16px;
}
.discount-value {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--accent-green);
  line-height: 1.1;
}
.discount-type {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

/* Middle description */
.coupon-detail-area h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.35;
}
.coupon-detail-area p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.coupon-meta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.meta-verified {
  color: var(--accent-green);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Right button area */
.coupon-action-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

/* ══════════════════════════════════════════════════════════════════════════════
   STANDARDIZED COUPON & DEAL BUTTON DESIGN (HIGH CTR, VIBRANT GREEN)
   ══════════════════════════════════════════════════════════════════════════════ */
.btn-show-code {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  padding: 12px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 3px 8px rgba(22, 163, 74, 0.28);
  text-decoration: none;
  box-sizing: border-box;
}
.btn-show-code:hover {
  background: linear-gradient(135deg, #15803d 0%, #166534 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(22, 163, 74, 0.38);
  color: #ffffff;
}
.btn-show-code:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(22, 163, 74, 0.2);
}

.btn-get-deal {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  padding: 12px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 3px 8px rgba(22, 163, 74, 0.28);
  box-sizing: border-box;
}
.btn-get-deal:hover {
  background: linear-gradient(135deg, #15803d 0%, #166534 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(22, 163, 74, 0.38);
  color: #ffffff;
}
.btn-get-deal:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(22, 163, 74, 0.2);
}
.code-covered-preview {
  margin-top: 6px;
  font-size: 0.75rem;
  font-family: monospace;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* SIDEBAR */
.sidebar-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.sidebar-title {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}
.store-stats-list {
  list-style: none;
  font-size: 0.85rem;
}
.store-stats-list li {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid #f1f5f9;
}
.store-stats-list li:last-child {
  border-bottom: none;
}
.stat-label {
  color: var(--text-muted);
}
.stat-val {
  font-weight: 700;
  color: var(--text-primary);
}

/* PROOF OF TESTING CARD */
.proof-card {
  background: #f0fdf4;
  border: 1px solid var(--accent-green-border);
  border-radius: var(--radius);
  padding: 16px;
  font-size: 0.85rem;
  color: #166534;
}
.proof-header {
  font-weight: 800;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* SEO ABOUT & FAQ SECTION */
.content-section {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 30px;
  box-shadow: var(--shadow-sm);
}
.content-section h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 14px;
}
.content-section p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 14px;
}
.content-section ul {
  margin-left: 20px;
  margin-bottom: 16px;
  font-size: 0.92rem;
  color: var(--text-secondary);
}
.content-section li {
  margin-bottom: 6px;
}

/* FAQ ACCORDION */
.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
}
.faq-question {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-answer {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 8px;
}

/* FOOTER */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 40px 0 30px;
  font-size: 0.85rem;
  border-top: 1px solid #1e293b;
}
.footer-disclosure {
  background: #1e293b;
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 24px;
  font-size: 0.8rem;
  color: #cbd5e1;
  line-height: 1.5;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 30px;
}
.footer-col h4 {
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 8px;
}
.footer-col a {
  color: #94a3b8;
}
.footer-col a:hover {
  color: #ffffff;
}
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* MODAL CODE REVEAL */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-overlay.active {
  display: flex;
}
.modal-box {
  background: #ffffff;
  border-radius: 12px;
  max-width: 480px;
  width: 100%;
  padding: 28px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  position: relative;
  animation: modalPop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalPop {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.modal-close-btn {
  position: absolute;
  right: 16px;
  top: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}
.modal-store-logo {
  width: 60px;
  height: 60px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  margin: 0 auto 12px;
  object-fit: contain;
}
.modal-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.modal-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.code-copy-container {
  display: flex;
  align-items: center;
  background: #f8fafc;
  border: 2px dashed #16a34a;
  border-radius: 10px;
  padding: 8px 12px;
  margin-bottom: 16px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.03);
  transition: all 0.2s;
}

.code-copy-container:hover {
  background: #f0fdf4;
  border-color: #15803d;
}

.code-text-field {
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.45rem;
  font-weight: 900;
  color: #0f172a;
  letter-spacing: 2.5px;
  text-align: center;
}

.btn-copy-code {
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  color: #ffffff;
  border: none;
  font-weight: 800;
  font-size: 0.92rem;
  padding: 10px 22px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.32);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-copy-code::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -80%;
  width: 45%;
  height: 200%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.45) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  animation: shimmerSweep 3s infinite 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.btn-copy-code:hover {
  background: linear-gradient(135deg, #15803d 0%, #166534 100%);
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 8px 18px rgba(22, 163, 74, 0.45);
}

.btn-copy-code:active {
  transform: scale(0.96);
  box-shadow: 0 2px 6px rgba(22, 163, 74, 0.2);
}

/* NÚT CHUYỂN HƯỚNG SANG CHECKOUT TRONG MODAL (CALL TO ACTION CHÍNH) */
.btn-modal-checkout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  max-width: 320px;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  color: #ffffff !important;
  font-weight: 800;
  font-size: 0.98rem;
  letter-spacing: 0.5px;
  padding: 14px 24px;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.35);
  position: relative;
  overflow: hidden;
  animation: checkoutHeartbeat 2.8s infinite ease-in-out;
  box-sizing: border-box;
}

.btn-modal-checkout::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -80%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.35) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  animation: shimmerSweep 2.8s infinite 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.btn-modal-checkout:hover {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.5), 0 0 0 2px rgba(101, 163, 13, 0.45);
}

.btn-modal-checkout:active {
  transform: translateY(0) scale(0.98);
}

.btn-modal-checkout .arrow-bounce {
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 900;
  transition: transform 0.2s;
  animation: arrowBounce 1.8s infinite ease-in-out;
}

.btn-modal-checkout:hover .arrow-bounce {
  transform: translate(4px, -4px);
}

@keyframes arrowBounce {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(3px, -3px); }
}

@keyframes checkoutHeartbeat {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.35), 0 0 0 0 rgba(22, 163, 74, 0.4);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.45), 0 0 0 5px rgba(22, 163, 74, 0.2);
  }
}

.modal-instruction {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* STORE DIRECTORY & 64 BRANDS GRID */
.store-directory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.store-grid-card {
  background: #ffffff;
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  position: relative;
  overflow: hidden;
}

.store-grid-card:hover {
  transform: translateY(-3px);
  border-color: #65a30d;
  box-shadow: 0 8px 24px rgba(101, 163, 13, 0.15);
}

.store-card-logo-wrap {
  width: 130px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 8px;
  padding: 6px 12px;
  margin-bottom: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.store-card-logo-wrap img {
  max-width: 114px;
  max-height: 48px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.store-card-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.store-card-name {
  font-size: 1rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 4px;
  line-height: 1.25;
}

.store-card-cat {
  font-size: 0.72rem;
  color: #64748b;
  margin-bottom: 10px;
}

.store-card-discount {
  font-size: 0.82rem;
  font-weight: 800;
  color: #15803d;
  background: #dcfce7;
  padding: 4px 10px;
  border-radius: 20px;
  margin-top: auto;
  display: inline-block;
}

.category-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.category-pill {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #334155;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}

.category-pill:hover,
.category-pill.active {
  background: #0f172a;
  color: #ffffff;
  border-color: #0f172a;
}

/* HOW TO APPLY 3-STEP GRID */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 14px;
}
.step-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 16px 14px;
  position: relative;
  transition: all 0.2s ease;
}
.step-card:hover {
  background: #ffffff;
  border-color: #16a34a;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.08);
}
.step-number {
  width: 28px;
  height: 28px;
  background: #16a34a;
  color: #ffffff;
  font-weight: 800;
  font-size: 0.88rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}
.step-title {
  font-weight: 800;
  font-size: 0.95rem;
  color: #0f172a;
  margin-bottom: 4px;
}
.step-desc {
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.45;
  margin: 0;
}

/* FAQ ACCORDION INTERACTIVE (CLEAN & RELIABLE TOGGLE) */
.faq-accordion-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}
.faq-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.2s ease;
  cursor: pointer;
  scroll-margin-top: 80px;
}
.faq-item:hover {
  background: #ffffff;
  border-color: #cbd5e1;
}
.faq-item.active {
  background: #ffffff;
  border-color: #16a34a;
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.06);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  font-weight: 700;
  font-size: 0.92rem;
  color: #0f172a;
  user-select: none;
  cursor: pointer;
}
.faq-item.active .faq-question {
  color: #15803d;
}
.faq-icon {
  font-size: 1.25rem;
  font-weight: 800;
  color: #16a34a;
  line-height: 1;
  margin-left: 12px;
  flex-shrink: 0;
}
.faq-answer {
  display: none;
  padding: 0 18px 14px 18px;
  font-size: 0.85rem;
  color: #475569;
  line-height: 1.55;
  border-top: 1px solid #f1f5f9;
  padding-top: 10px;
}
.faq-item.active .faq-answer {
  display: block;
}

/* NÚT THU GỌN / XEM THÊM STORES TRÊN TRANG CHỦ */
.btn-toggle-more-stores {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  color: #0f172a;
  font-weight: 800;
  font-size: 0.92rem;
  padding: 12px 28px;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
}
.btn-toggle-more-stores:hover {
  background: #f0fdf4;
  border-color: #16a34a;
  color: #15803d;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(22, 163, 74, 0.2);
}
.btn-toggle-more-stores:active {
  transform: translateY(0);
}


/* ══════════════════════════════════════════════════════════════════════════════
   MOBILE FIRST RESPONSIVE OVERHAUL (100% BULLETPROOF ZERO OVERFLOW & LUXURY UI)
   ══════════════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  /* 1. TRIỆT TIÊU 100% TRÀN NGANG SINH KHOẢNG TRẮNG */
  html, body {
    width: 100% !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
    position: relative !important;
  }

  .container {
    padding: 0 12px !important;
    width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }

  /* 2. TOP DISCLOSURE BAR */
  .top-disclosure-bar {
    font-size: 0.68rem !important;
    padding: 4px 10px !important;
    width: 100% !important;
    max-width: 100vw !important;
    overflow: hidden !important;
  }
  .top-disclosure-inner {
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    gap: 2px !important;
    width: 100% !important;
  }
  .top-disclosure-left {
    font-size: 0.68rem !important;
    justify-content: center !important;
    flex-wrap: wrap !important;
  }
  .top-disclosure-tag {
    font-size: 0.62rem !important;
    padding: 1px 4px !important;
  }

  /* 3. HEADER NAVBAR */
  .header-nav {
    width: 100% !important;
    max-width: 100vw !important;
    overflow: hidden !important;
  }
  .header-container {
    height: 50px !important;
    padding: 0 12px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }
  .logo-area {
    gap: 6px !important;
    flex-shrink: 0 !important;
    display: flex !important;
    align-items: center !important;
  }
  .logo-area img {
    height: 24px !important;
    width: auto !important;
  }
  .logo-badge {
    display: none !important;
  }
  .search-box {
    display: none !important;
  }
  .nav-links {
    display: flex !important;
    gap: 8px !important;
    align-items: center !important;
    flex-shrink: 0 !important;
  }
  .nav-link {
    font-size: 0.76rem !important;
    font-weight: 600 !important;
    padding: 4px 6px !important;
    white-space: nowrap !important;
  }

  /* 4. SITELINKS STRIP (APP RIBBON CUỘN NGANG) */
  .sitelinks-strip {
    background: #ffffff !important;
    border-bottom: 1px solid #e2e8f0 !important;
    padding: 6px 0 !important;
    overflow-x: auto !important;
    white-space: nowrap !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    width: 100% !important;
    max-width: 100vw !important;
  }
  .sitelinks-strip::-webkit-scrollbar {
    display: none !important;
  }
  .sitelinks-list {
    display: inline-flex !important;
    flex-wrap: nowrap !important;
    gap: 8px !important;
    padding: 0 12px !important;
    align-items: center !important;
    width: max-content !important;
  }
  .sitelinks-list span {
    display: none !important;
  }
  .sitelink-item {
    background: #f1f5f9 !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 9999px !important;
    padding: 4px 12px !important;
    font-size: 0.75rem !important;
    font-weight: 600 !important;
    color: #334155 !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
  }

  /* 5. BREADCRUMB */
  .breadcrumb {
    padding: 6px 0 !important;
    font-size: 0.72rem !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }

  /* 6. STORE HERO */
  .store-hero {
    padding: 12px !important;
    margin-bottom: 12px !important;
    border-radius: 10px !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .store-info-left {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 10px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .store-logo {
    min-width: 56px !important;
    max-width: 64px !important;
    height: 46px !important;
    padding: 4px !important;
    border-radius: 8px !important;
    flex-shrink: 0 !important;
  }
  .store-title-area {
    flex: 1 !important;
    min-width: 0 !important;
  }
  .store-title-area h1 {
    font-size: 1.05rem !important;
    line-height: 1.25 !important;
    margin-bottom: 3px !important;
    word-break: break-word !important;
  }
  .store-rating-row {
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 4px !important;
    font-size: 0.7rem !important;
  }
  .rating-stars {
    font-size: 0.72rem !important;
  }
  .verified-pill {
    font-size: 0.65rem !important;
    padding: 1px 5px !important;
  }
  .btn-visit-store {
    width: 100% !important;
    text-align: center !important;
    padding: 9px 12px !important;
    font-size: 0.82rem !important;
    border-radius: 8px !important;
    box-sizing: border-box !important;
    display: block !important;
  }

  /* 7. LAYOUT GRID & CONTENT CONTAINERS (TRIỆT TIÊU TOÀN BỘ OVERFLOW) */
  .layout-grid {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
  }
  #coupons {
    min-width: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .coupons-header-row {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
    margin-bottom: 8px !important;
  }
  .coupons-title {
    font-size: 1rem !important;
    line-height: 1.3 !important;
  }
  .coupons-count {
    font-size: 0.74rem !important;
  }

  /* 8. STORE FILTER TABS (CUỘN NGANG KHÔNG BAO GIỜ BỊ TRÀN) */
  .store-filter-tabs {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    white-space: nowrap !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 6px !important;
    padding-bottom: 6px !important;
    margin-bottom: 12px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .store-filter-tabs::-webkit-scrollbar {
    display: none !important;
  }
  .store-tab-btn {
    padding: 5px 12px !important;
    font-size: 0.76rem !important;
    flex-shrink: 0 !important;
    white-space: nowrap !important;
  }

  /* 9. THẺ COUPON CARD — THIẾT KẾ ĐẲNG CẤP US 2026 */
  #coupons-list {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .coupon-card {
    display: flex !important;
    flex-direction: column !important;
    padding: 14px 12px !important;
    gap: 8px !important;
    border-radius: 10px !important;
    margin-bottom: 12px !important;
    background: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04) !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    position: relative !important;
  }
  .coupon-card.exclusive {
    border: 1.5px solid #ea580c !important;
    background: #fffcf9 !important;
  }
  .exclusive-badge {
    position: static !important;
    align-self: flex-start !important;
    margin-bottom: 2px !important;
    font-size: 0.62rem !important;
    padding: 2px 6px !important;
    border-radius: 4px !important;
  }

  /* Hàng Header thẻ: Giảm giá + Thể loại */
  .coupon-badge-area {
    border-right: none !important;
    border-bottom: 1px dashed #e2e8f0 !important;
    padding-right: 0 !important;
    padding-bottom: 8px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    text-align: left !important;
  }
  .discount-value {
    font-size: 1.2rem !important;
    font-weight: 900 !important;
    color: #15803d !important;
    line-height: 1 !important;
  }
  .discount-type {
    display: inline-block !important;
    margin-top: 0 !important;
    margin-left: 6px !important;
    background: #f0fdf4 !important;
    color: #166534 !important;
    border: 1px solid #bbf7d0 !important;
    padding: 2px 7px !important;
    border-radius: 4px !important;
    font-size: 0.65rem !important;
    font-weight: 800 !important;
  }

  /* Chi tiết ưu đãi */
  .coupon-detail-area {
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .coupon-detail-area h3 {
    font-size: 0.94rem !important;
    font-weight: 800 !important;
    line-height: 1.35 !important;
    margin-bottom: 4px !important;
    color: #0f172a !important;
  }
  .coupon-detail-area p {
    font-size: 0.8rem !important;
    line-height: 1.4 !important;
    color: #475569 !important;
    margin-bottom: 6px !important;
  }
  .coupon-meta-row {
    font-size: 0.7rem !important;
    gap: 6px !important;
    flex-wrap: wrap !important;
    color: #64748b !important;
  }
  .coupon-vote-area {
    display: none !important;
  }

  /* Nút bấm hành động trên Mobile */
  .coupon-action-area {
    width: 100% !important;
    margin-top: 2px !important;
    box-sizing: border-box !important;
  }
  .btn-show-code,
  .btn-get-deal {
    padding: 10px 12px !important;
    font-size: 0.88rem !important;
    border-radius: 8px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 10. CONTENT SECTIONS (FAQ, GUIDES, RELATED BRANDS) */
  .content-section {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow-wrap: break-word !important;
    word-break: break-word !important;
    padding: 16px 12px !important;
    margin-bottom: 16px !important;
  }
  .policy-disclosure-box {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .sidebar {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    margin-top: 24px !important;
  }
  .sidebar-widget {
    padding: 14px 12px !important;
    margin-bottom: 14px !important;
  }

  /* 11. HOMEPAGE & DIRECTORY GRID */
  .hero-section-mobile {
    padding: 18px 0 24px !important;
  }
  h1 {
    font-size: 1.35rem !important;
    line-height: 1.25 !important;
  }
  .store-directory-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
  }
  .store-grid-card {
    padding: 8px 6px !important;
  }
  .store-card-logo-wrap {
    height: 42px !important;
    margin-bottom: 4px !important;
  }
  .store-card-name {
    font-size: 0.8rem !important;
  }
  .store-card-cat {
    display: none !important;
  }
  .store-card-discount {
    font-size: 0.7rem !important;
    padding: 2px 6px !important;
  }

  /* 12. FOOTER MOBILE */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
    text-align: center !important;
    padding: 24px 12px !important;
  }
  .footer-bottom {
    flex-direction: column !important;
    text-align: center !important;
    gap: 6px !important;
  }
}

@media (max-width: 480px) {
  .store-hero .store-info-left {
    flex-direction: row !important;
    align-items: center !important;
  }
  .coupon-detail-area h3 {
    font-size: 0.9rem !important;
  }
}