/* ==================== DESIGN TOKENS ==================== */
:root {
  --color-brand-dark: #1e3a8a;
  --color-brand-navy: #1f2937;
  --color-brand-accent: #ff6b35;
  --color-brand-light: #f8fafc;
  --color-slate-50: #f8fafc;
  --color-slate-100: #f1f5f9;
  --color-slate-200: #e2e8f0;
  --color-slate-300: #cbd5e1;
  --color-slate-400: #94a3b8;
  --color-slate-500: #64748b;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-white: #ffffff;
  --text-color: #1f2937;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* ==================== RESET & TYPOGRAPHY ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--color-brand-light);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==================== HEADER ==================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-slate-200);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.header .container {
  padding: 12px 20px;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo {
  height: 48px;
  width: auto;
  transition: transform 0.3s ease;
}

.logo-section:hover .logo {
  transform: scale(1.05);
}

.logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-brand-dark);
  line-height: 1.2;
}

.brand-tagline {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--color-brand-navy);
  text-transform: uppercase;
  margin-top: 2px;
  line-height: 1;
}

/* Search wrapper */
.search-wrapper {
  position: relative;
  flex: 1;
  max-width: 400px;
  display: none;
}

@media (min-width: 768px) {
  .search-wrapper {
    display: block;
  }
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-slate-400);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--color-slate-200);
  border-radius: 24px;
  font-size: 13px;
  background-color: var(--color-slate-50);
  transition: all 0.3s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-brand-navy);
  background-color: var(--color-white);
  box-shadow: 0 0 0 3px rgba(31, 41, 55, 0.05);
}

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-btn {
  padding: 6px 14px;
  border: 1px solid var(--color-slate-200);
  background: var(--color-slate-100);
  border-radius: 20px;
  font-size: 10px;
  font-weight: 600;
  color: var(--color-slate-700);
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.lang-btn:hover {
  background: var(--color-slate-200);
}

.cart-btn {
  position: relative;
  padding: 8px;
  border: 1px solid var(--color-slate-200);
  background: var(--color-white);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-slate-700);
}

.cart-btn:hover {
  background: var(--color-slate-50);
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--color-brand-accent);
  color: var(--color-white);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==================== HERO BANNER ==================== */
.hero-banner {
  background: linear-gradient(135deg, #1e3a8a 0%, #2c5aa0 50%, #d97706 100%);
  padding: 48px 20px;
  margin: 16px 20px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
  min-height: 300px;
  display: flex;
  align-items: center;
}

@media (max-width: 768px) {
  .hero-banner {
    min-height: 250px;
    padding: 32px 16px;
  }
}

.banner-content {
  max-width: 600px;
}

.banner-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-brand-accent);
  margin-bottom: 12px;
}

.banner-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

@media (max-width: 768px) {
  .banner-title {
    font-size: 22px;
  }
}

.banner-desc {
  font-size: 14px;
  margin-bottom: 24px;
  opacity: 0.95;
  line-height: 1.6;
}

.btn-browse {
  padding: 12px 28px;
  background: var(--color-brand-accent);
  color: var(--color-white);
  border: none;
  border-radius: 24px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn-browse:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

/* ==================== FEATURED SECTION ==================== */
.featured-section {
  padding: 60px 0;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 40px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-brand-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.5px;
}

.section-title svg {
  color: var(--color-brand-navy);
  flex-shrink: 0;
}

.section-desc {
  font-size: 14px;
  color: var(--color-slate-500);
}

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.tab-btn {
  padding: 8px 16px;
  border: 1px solid var(--color-slate-200);
  background: var(--color-white);
  border-radius: 24px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-slate-600);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  border-color: var(--color-brand-navy);
  color: var(--color-brand-navy);
}

.tab-btn.active {
  background: var(--color-brand-navy);
  color: var(--color-white);
  border-color: var(--color-brand-navy);
}

/* Books Grid */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .books-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
  }
}

.book-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-brand-navy);
}

.book-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: var(--color-slate-100);
  object-fit: cover;
  border-bottom: 1px solid var(--color-slate-200);
}

.book-info {
  padding: 16px;
}

.book-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-brand-dark);
  margin-bottom: 4px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-author {
  font-size: 12px;
  color: var(--color-slate-500);
  margin-bottom: 8px;
}

.book-price {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-brand-navy);
  margin-bottom: 12px;
}

.book-btn {
  width: 100%;
  padding: 8px 12px;
  background: var(--color-brand-navy);
  color: var(--color-white);
  border: none;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.book-btn:hover {
  background: var(--color-brand-dark);
  transform: scale(1.02);
}

/* No result */
.no-result {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-slate-500);
}

.no-result svg {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.no-result p {
  font-size: 16px;
  margin-bottom: 24px;
}

/* ==================== CONTENT GRID ==================== */
.content-grid {
  padding: 60px 0;
  background: var(--color-white);
}

.grid-2col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
}

@media (max-width: 768px) {
  .grid-2col {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.guidance-card,
.resources-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.guidance-card:hover,
.resources-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-slate-300);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 12px;
}

.card-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-brand-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-header h3 svg {
  color: var(--color-brand-navy);
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(30, 58, 138, 0.1);
  color: var(--color-brand-navy);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

/* Articles list */
.articles-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-item {
  padding: 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.article-item:hover {
  background: var(--color-slate-50);
}

.article-item > span:first-child {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-brand-accent);
  margin-bottom: 4px;
}

.article-item .read-time {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  color: var(--color-slate-500);
}

.article-item h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-brand-dark);
  margin-bottom: 6px;
  line-height: 1.4;
}

.article-item p {
  font-size: 12px;
  color: var(--color-slate-600);
  line-height: 1.5;
  margin-bottom: 8px;
}

.read-more {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-brand-navy);
  text-decoration: none;
  transition: all 0.3s ease;
}

.read-more:hover {
  color: var(--color-brand-dark);
  transform: translateX(4px);
}

/* Resources card */
.resources-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-brand-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.resources-card h3 svg {
  color: var(--color-brand-navy);
}

.resources-card > p {
  font-size: 13px;
  color: var(--color-slate-600);
  margin-bottom: 20px;
  line-height: 1.6;
}

.resources-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--color-slate-200);
  padding-top: 20px;
}

.resource-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

.resource-row span {
  color: var(--color-slate-600);
}

.resource-row strong {
  color: var(--color-brand-navy);
  font-weight: 600;
}

/* ==================== ABOUT SECTION ==================== */
.about-section {
  padding: 60px 0;
}

.about-box {
  background: var(--color-slate-100);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  max-width: 600px;
}

.about-box h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-brand-dark);
  margin-bottom: 16px;
}

.about-box p {
  font-size: 14px;
  color: var(--color-slate-600);
  line-height: 1.8;
  margin-bottom: 20px;
}

/* ==================== CONTACT SECTION ==================== */
.contact-section {
  padding: 60px 0;
}

.contact-wrapper {
  max-width: 500px;
  margin: 0 auto;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  padding: 12px 16px;
  border: 1px solid var(--color-slate-200);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-brand-navy);
  box-shadow: 0 0 0 3px rgba(31, 41, 55, 0.05);
}

.btn-primary {
  padding: 12px 24px;
  background: var(--color-brand-navy);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: var(--color-brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(31, 41, 55, 0.2);
}

.btn-secondary {
  padding: 10px 16px;
  background: transparent;
  color: var(--color-brand-navy);
  border: 1px solid var(--color-brand-navy);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 12px;
}

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

/* ==================== FAQ SECTION ==================== */
.faq-section {
  padding: 60px 0;
  background: var(--color-white);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  max-width: 1000px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-slate-200);
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-white);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--color-slate-300);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-question h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-brand-dark);
  flex: 1;
  line-height: 1.5;
}

.faq-icon {
  font-size: 20px;
  color: var(--color-brand-navy);
  flex-shrink: 0;
  margin-left: 12px;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 16px;
  border-top: 1px solid var(--color-slate-200);
  background: var(--color-slate-50);
}

.faq-answer p {
  font-size: 13px;
  color: var(--color-slate-600);
  line-height: 1.6;
}

/* ==================== CART SIDEBAR ==================== */
.cart-sidebar {
  position: fixed;
  right: 0;
  top: 0;
  width: 400px;
  height: 100%;
  background: var(--color-white);
  border-left: 1px solid var(--color-slate-200);
  box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 1000;
  display: flex;
  flex-direction: column;
}

.cart-sidebar.active {
  transform: translateX(0);
}

@media (max-width: 768px) {
  .cart-sidebar {
    width: 100%;
  }
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 999;
}

.overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ==================== FOOTER ==================== */
footer {
  background: var(--color-brand-navy);
  color: var(--color-white);
  padding: 40px 20px 20px;
  text-align: center;
  margin-top: 60px;
}

footer .footer-logo {
  height: 40px;
  width: auto;
  margin-bottom: 16px;
  opacity: 0.8;
}

footer p {
  font-size: 12px;
  margin-bottom: 8px;
  opacity: 0.8;
}

footer a {
  color: var(--color-brand-accent);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

footer a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* ==================== UTILITIES ==================== */
.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .header .container {
    flex-wrap: wrap;
  }

  .brand-name {
    font-size: 12px;
  }

  .brand-tagline {
    font-size: 8px;
  }

  .section-title {
    font-size: 20px;
  }

  .books-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

/* ==================== CART SIDEBAR DETAILED ==================== */
.cart-header {
  padding: 16px;
  border-bottom: 1px solid var(--color-slate-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-brand-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.cart-header button {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--color-slate-500);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
}

.cart-footer {
  padding: 16px;
  border-top: 1px solid var(--color-slate-200);
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 13px;
}

.cart-total-row.grand-row {
  font-size: 14px;
  font-weight: 700;
  border-top: 1px solid var(--color-slate-200);
  padding-top: 12px;
  margin-top: 12px;
}

.btn-checkout {
  width: 100%;
  padding: 12px;
  margin-top: 12px;
  background: var(--color-brand-navy);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-checkout:hover {
  background: var(--color-brand-dark);
}

/* ==================== CHECKOUT MODAL ==================== */
.checkout-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  padding: 20px;
}

.checkout-modal.active {
  display: flex;
}

.checkout-box {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.checkout-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border-bottom: 1px solid var(--color-slate-200);
  flex-wrap: wrap;
  gap: 4px;
}

.step {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-slate-100);
  color: var(--color-slate-600);
  font-weight: 600;
  font-size: 12px;
  opacity: 0.5;
  position: relative;
}

.step.active {
  background: var(--color-brand-navy);
  color: var(--color-white);
  opacity: 1;
}

.step span {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-line {
  width: 20px;
  height: 2px;
  background: var(--color-slate-200);
  margin: 0 4px;
}

.step.active ~ .step-line {
  background: var(--color-brand-navy);
}

.checkout-step {
  padding: 24px;
}

.checkout-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.checkout-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-brand-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.back-btn,
.close-modal {
  background: none;
  border: none;
  color: var(--color-slate-500);
  font-size: 18px;
  cursor: pointer;
  padding: 8px;
}

.back-btn:hover,
.close-modal:hover {
  color: var(--color-brand-dark);
}

.order-review-list {
  margin-bottom: 20px;
  border: 1px solid var(--color-slate-200);
  border-radius: 8px;
  overflow: hidden;
}

.order-summary-box {
  padding: 16px;
  background: var(--color-slate-50);
  border-radius: 8px;
  margin-bottom: 20px;
}

.sum-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 13px;
}

.sum-row.total-sum {
  font-weight: 700;
  border-top: 1px solid var(--color-slate-200);
  padding-top: 12px;
  margin-top: 12px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.form-row.full {
  grid-column: 1 / -1;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-brand-dark);
  margin-bottom: 6px;
}

.form-group label span {
  color: var(--color-brand-accent);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 12px;
  border: 1px solid var(--color-slate-200);
  border-radius: 6px;
  font-family: inherit;
  font-size: 13px;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-brand-navy);
  box-shadow: 0 0 0 3px rgba(31, 41, 55, 0.05);
}

.delivery-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 16px 0;
}

.delivery-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-brand-dark);
  margin-bottom: 8px;
}

.delivery-opt {
  display: flex;
  gap: 12px;
  cursor: pointer;
}

.delivery-opt input[type="radio"] {
  margin-top: 2px;
}

.opt-box {
  flex: 1;
  padding: 12px;
  border: 1px solid var(--color-slate-200);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
}

.delivery-opt input:checked + .opt-box {
  border-color: var(--color-brand-navy);
  background: rgba(31, 41, 55, 0.05);
}

.opt-box i {
  font-size: 16px;
  color: var(--color-brand-navy);
}

.opt-box > div {
  flex: 1;
}

.opt-box b {
  font-size: 13px;
  display: block;
  margin-bottom: 2px;
}

.opt-box small {
  font-size: 11px;
  color: var(--color-slate-500);
}

.opt-price {
  font-weight: 600;
  color: var(--color-brand-navy);
  font-size: 13px;
  white-space: nowrap;
}

.opt-price.free {
  color: var(--color-brand-accent);
}

.qr-payment-wrap {
  padding: 20px 0;
}

.qr-amount-banner {
  text-align: center;
  padding: 20px;
  background: var(--color-brand-navy);
  color: var(--color-white);
  border-radius: 8px;
  margin-bottom: 20px;
}

.qr-amount-banner span {
  display: block;
  font-size: 12px;
  opacity: 0.9;
  margin-bottom: 6px;
}

.qr-amount-banner strong {
  font-size: 24px;
}

.qr-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

@media (max-width: 600px) {
  .qr-body {
    grid-template-columns: 1fr;
  }
}

.qr-left {
  text-align: center;
}

.qr-frame {
  background: var(--color-slate-50);
  padding: 16px;
  border-radius: 12px;
  position: relative;
  display: inline-block;
}

.qr-frame img {
  width: 200px;
  height: 200px;
}

.qr-shine {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  border-radius: 12px;
  pointer-events: none;
}

.upi-logos {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
}

.upi-logos img {
  height: 30px;
  width: auto;
  opacity: 0.7;
}

.qr-right h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-brand-dark);
  margin-bottom: 12px;
}

.qr-steps {
  font-size: 12px;
  color: var(--color-slate-600);
  line-height: 1.8;
  list-style: none;
}

.qr-steps li {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.qr-steps i {
  color: var(--color-brand-navy);
  font-size: 14px;
  min-width: 14px;
}

.qr-steps b {
  color: var(--color-brand-dark);
}

.qr-steps small {
  display: block;
  font-size: 11px;
  color: var(--color-slate-500);
  margin-top: 2px;
}

.upi-id-box {
  margin-top: 16px;
  padding: 12px;
  background: var(--color-slate-50);
  border-radius: 8px;
  font-size: 12px;
}

.upi-id-box span {
  display: block;
  color: var(--color-slate-600);
  margin-bottom: 4px;
}

.upi-id-box strong {
  display: block;
  color: var(--color-brand-navy);
  font-weight: 600;
  margin-bottom: 8px;
}

.upi-id-box button {
  background: var(--color-brand-navy);
  color: var(--color-white);
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upi-id-box button:hover {
  background: var(--color-brand-dark);
}

.pay-summary {
  padding: 16px;
  background: var(--color-slate-50);
  border-radius: 8px;
  margin-bottom: 20px;
}

.btn-next {
  width: 100%;
  padding: 12px;
  background: var(--color-brand-navy);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-next:hover {
  background: var(--color-brand-dark);
  transform: translateY(-2px);
}

.btn-paid {
  background: var(--color-brand-accent);
}

.btn-paid:hover {
  background: #ff5517;
}

.confirm-wrap {
  text-align: center;
  padding: 40px 20px;
}

.confirm-icon {
  font-size: 48px;
  color: var(--color-brand-accent);
  margin-bottom: 16px;
}

.confirm-wrap h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-brand-dark);
  margin-bottom: 8px;
}

.confirm-wrap p {
  font-size: 13px;
  color: var(--color-slate-600);
  margin-bottom: 16px;
}

.confirm-details {
  background: var(--color-slate-50);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 12px;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .form-row.full {
    grid-column: auto;
  }

  .checkout-modal {
    padding: 0;
  }

  .checkout-box {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .checkout-steps {
    font-size: 10px;
  }

  .step {
    width: 28px;
    height: 28px;
    font-size: 10px;
  }

  .step-line {
    width: 12px;
    margin: 0 2px;
  }
}