/* ============================================================
   SellerShop — Frontend Stylesheet
   ============================================================ */

:root {
  --primary:      #4F46E5;
  --primary-dark: #3730A3;
  --primary-mid:  #6366F1;
  --primary-light:#EEF2FF;
  --cyan:         #06B6D4;
  --gold:         #F59E0B;
  --green:        #10B981;
  --dark:         #0F172A;
  --text:         #374151;
  --text-light:   #6B7280;
  --border:       #E5E7EB;
  --bg:           #F8FAFC;
  --white:        #fff;
  --shadow:       0 4px 20px rgba(79,70,229,.1);
  --shadow-lg:    0 12px 40px rgba(0,0,0,.12);
  --radius:       14px;
  --radius-sm:    8px;
  --transition:   all .28s cubic-bezier(.4,0,.2,1);
}

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

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration:none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width:100%; height:auto; }

::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:#f1f5f9; }
::-webkit-scrollbar-thumb { background:var(--primary); border-radius:3px; }

/* ============================================================
   NAV (shared header.php for auth/account pages)
   ============================================================ */
.main-nav {
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229,231,235,.8);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0;
}

.navbar-brand .logo-text {
  font-size: 1.55rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.5px;
}

.nav-link {
  font-weight: 500;
  font-size: 14px;
  color: var(--dark) !important;
  padding: 8px 13px !important;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--primary) !important;
  background: var(--primary-light);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  padding: 11px 26px;
  transition: var(--transition);
  color: white;
  font-size: 14px;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79,70,229,.35);
  color: white;
}

.btn-outline-primary {
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius);
  font-weight: 600;
  padding: 9px 24px;
  font-size: 14px;
  transition: var(--transition);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.btn-light {
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-weight: 600;
  color: var(--text);
  padding: 9px 22px;
  transition: var(--transition);
}
.btn-light:hover { border-color: var(--primary); color: var(--primary); }

/* ============================================================
   SECTION UTILITIES
   ============================================================ */
section { padding: 72px 0; }

.section-label {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 2.5px;
  background: var(--primary-light);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -.4px;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.divider-line {
  width: 48px; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  border-radius: 3px;
  margin: 0 auto;
}

/* ============================================================
   FORMS
   ============================================================ */
.form-control, .form-select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 15px;
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79,70,229,.12);
  outline: none;
}
.form-label {
  font-weight: 600;
  font-size: 13px;
  color: var(--dark);
  margin-bottom: 6px;
}

/* ============================================================
   CART / CART BADGE
   ============================================================ */
.cart-btn {
  position: relative;
  background: var(--primary);
  color: var(--white) !important;
  border-radius: 30px;
  padding: 8px 18px !important;
}
.cart-btn:hover { background: var(--primary-dark); color: var(--white) !important; }
.cart-badge {
  position: absolute;
  top: -6px; right: -6px;
  background: var(--gold);
  color: white;
  font-size: 10px; font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* ============================================================
   PRODUCT CARDS (for account / order pages still using these)
   ============================================================ */
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,.05);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.product-card .img-wrapper { position:relative; overflow:hidden; height:240px; background:var(--primary-light); }
.product-card .img-wrapper img { width:100%; height:100%; object-fit:cover; transition:transform .5s; }
.product-card:hover .img-wrapper img { transform:scale(1.07); }
.product-card .card-body { padding: 16px; }
.product-card h6 { font-size:14px; font-weight:600; color:var(--dark); margin-bottom:6px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.product-card .price { font-size:15px; font-weight:700; color:var(--primary); }
.product-card .original-price { font-size:13px; color:var(--text-light); text-decoration:line-through; }

/* ============================================================
   AUTH PAGES
   ============================================================ */
.auth-wrapper {
  min-height: 100vh;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 40%, #CFFAFE 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
}

.auth-card {
  background: white;
  border-radius: 20px;
  padding: 44px 40px;
  box-shadow: 0 20px 60px rgba(0,0,0,.1);
  width: 100%;
  max-width: 440px;
}

.auth-card .brand { text-align:center; margin-bottom:28px; }
.auth-card .brand-logo {
  font-size: 1.7rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.5px;
}

.divider-text {
  display: flex; align-items:center; gap:12px;
  color:var(--text-light); font-size:13px; margin:20px 0;
}
.divider-text::before, .divider-text::after { content:''; flex:1; height:1px; background:var(--border); }

/* ============================================================
   ACCOUNT PAGES
   ============================================================ */
.account-sidebar {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,.05);
  border: 1px solid var(--border);
}
.account-sidebar .user-info {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 28px 22px;
  text-align: center;
}
.account-sidebar .user-info .avatar {
  width: 66px; height: 66px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex; align-items:center; justify-content:center;
  font-size: 26px;
  margin: 0 auto 12px;
}
.account-nav .nav-link {
  color: var(--text) !important;
  padding: 13px 22px !important;
  border-radius: 0;
  border-left: 3px solid transparent;
  font-size: 14px;
  display: flex; align-items:center; gap:10px;
}
.account-nav .nav-link:hover,
.account-nav .nav-link.active {
  background: var(--primary-light) !important;
  color: var(--primary) !important;
  border-left-color: var(--primary);
}

/* ============================================================
   CART & CHECKOUT
   ============================================================ */
.cart-table { background:white; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); border:1px solid var(--border); }
.cart-table th { background:var(--primary-light); color:var(--dark); font-weight:700; font-size:12px; text-transform:uppercase; letter-spacing:1px; }

.cart-summary {
  background: white;
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  position: sticky;
  top: 80px;
}
.cart-summary .summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.cart-summary .summary-row:last-child { border-bottom:none; }
.cart-summary .total-row { font-size:17px; font-weight:700; color:var(--dark); }

/* ============================================================
   ORDER STATUS BADGES
   ============================================================ */
.status-badge {
  display: inline-flex; align-items:center; gap:5px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.status-pending    { background:#FEF3C7; color:#92400E; }
.status-confirmed  { background:#DBEAFE; color:#1E40AF; }
.status-processing { background:#DCFCE7; color:#166534; }
.status-shipped    { background:#CFFAFE; color:#155E75; }
.status-delivered  { background:#DCFCE7; color:#166534; }
.status-cancelled  { background:#FEE2E2; color:#991B1B; }
.status-returned   { background:#F3F4F6; color:#374151; }

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination .page-link {
  border: 1.5px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm) !important;
  margin: 0 2px;
  padding: 7px 13px;
  font-weight: 600;
  font-size: 13px;
  transition: var(--transition);
}
.pagination .page-link:hover { background:var(--primary-light); border-color:var(--primary); color:var(--primary); }
.pagination .page-item.active .page-link { background:var(--primary); border-color:var(--primary); color:white; }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state { text-align:center; padding:60px 24px; }
.empty-state .icon { font-size:4rem; margin-bottom:18px; opacity:.25; }
.empty-state h4 { font-weight:700; color:var(--dark); margin-bottom:8px; }
.empty-state p { color:var(--text-light); margin-bottom:22px; }

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
  border-radius: var(--radius-sm);
  border: none;
  border-left: 3px solid;
  padding: 13px 16px;
  font-size: 14px;
}
.alert-success { background:#F0FDF4; border-left-color:#10B981; color:#065F46; }
.alert-danger  { background:#FFF1F2; border-left-color:#EF4444; color:#991B1B; }
.alert-info    { background:#EFF6FF; border-left-color:var(--primary); color:var(--primary-dark); }
.alert-warning { background:#FFFBEB; border-left-color:#F59E0B; color:#92400E; }

/* ============================================================
   FOOTER (regular header.php pages)
   ============================================================ */
.main-footer {
  background: var(--dark);
  color: rgba(255,255,255,.65);
  padding: 64px 0 0;
}
.main-footer .footer-brand h3 {
  font-size: 1.7rem; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 14px;
}
.main-footer p { font-size:14px; line-height:1.8; }
.main-footer h5 { color:white; font-size:13px; font-weight:700; text-transform:uppercase; letter-spacing:1.5px; margin-bottom:18px; }
.footer-links li { list-style:none; margin-bottom:9px; }
.footer-links a { color:rgba(255,255,255,.55); font-size:14px; transition:var(--transition); display:flex; align-items:center; gap:6px; }
.footer-links a::before { content:'›'; color:var(--primary); font-size:16px; }
.footer-links a:hover { color:var(--primary); padding-left:3px; }
.social-icons { display:flex; gap:8px; margin-top:16px; }
.social-icon {
  width:36px; height:36px;
  background:rgba(255,255,255,.08);
  border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  color:rgba(255,255,255,.6);
  font-size:14px;
  transition:var(--transition);
}
.social-icon:hover { background:var(--primary); color:white; transform:translateY(-2px); }
.footer-bottom {
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0; margin-top:48px;
  text-align:center; font-size:13px;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
#back-to-top {
  position: fixed; bottom:28px; right:24px;
  width: 42px; height: 42px;
  background: var(--primary);
  color: white;
  border-radius: 10px;
  display: none; align-items:center; justify-content:center;
  font-size: 16px;
  box-shadow: 0 4px 16px rgba(79,70,229,.4);
  cursor: pointer;
  z-index: 999;
  transition: var(--transition);
  border: none;
}
#back-to-top:hover { background:var(--primary-dark); transform:translateY(-2px); }
#back-to-top.show { display:flex; }

/* ============================================================
   LOADING SPINNER
   ============================================================ */
.spinner-primary {
  width: 36px; height: 36px;
  border: 3px solid var(--primary-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  margin: 0 auto;
}
@keyframes spin { to { transform:rotate(360deg); } }

/* ============================================================
   UTILITIES
   ============================================================ */
.bg-primary-light { background: var(--primary-light); }
.text-primary { color: var(--primary) !important; }
.text-gold    { color: var(--gold) !important; }
.fw-600 { font-weight:600 !important; }
.fw-700 { font-weight:700 !important; }
.fw-800 { font-weight:800 !important; }
.border-primary { border-color:var(--primary) !important; }
.card-hover { transition:var(--transition); }
.card-hover:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); }
.breadcrumb-item.active { color:var(--primary); font-weight:600; }
.breadcrumb-item a { color:var(--text-light); }
.breadcrumb-item+.breadcrumb-item::before { color:var(--primary); }
.stars-input i { font-size:22px; color:var(--border); cursor:pointer; transition:var(--transition); }
.stars-input i.active, .stars-input i:hover { color:var(--gold); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:768px) {
  section { padding:48px 0; }
  .auth-card { padding:32px 22px; }
  .cart-summary { position:static; }
}
@media (max-width:576px) {
  section { padding:36px 0; }
}