/* Premium Cool Teal Theme */
:root {
  /* Color Palette */
  --bg-main: #F5F7FA;      /* Cool Gray */
  --bg-card: #FFFFFF;      /* Pure White */
  --bg-accent: #E8F0F0;   /* Teal Tint */
  --border-soft: #D9E2E8;  /* Soft Slate */
  --primary-deep: #0D4F4F; /* Deep Teal */
  --primary: #1A7A7A;      /* Teal */
  --accent-coral: #E07A5F; /* Warm Coral */
  --accent-terra: #C1664A; /* Terracotta */
  --accent-gold: #1A7A7A;  /* Teal Green */
  --text-main: #1B2A3D;    /* Dark Slate */
  --text-muted: #6B7A8D;   /* Cool Gray */

  /* Typography */
  --font-main: 'Inter', system-ui, sans-serif;
  
  /* Shadows & Transitions */
  --shadow-soft: 0 4px 20px rgba(13, 79, 79, 0.06);
  --shadow-hover: 0 10px 30px rgba(13, 79, 79, 0.1);
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Dark Mode Override ─────────────────────────────────────────────────── */
body.dark-mode {
  --bg-main:    #0d1117;
  --bg-card:    #161b22;
  --bg-accent:  #0a2020;
  --border-soft:#1e3030;
  --primary-deep:#5bb8b8;
  --primary:    #4aa8a8;
  --accent-coral:#E07A5F;
  --accent-terra:#C1664A;
  --accent-gold: #5bb8b8;
  --text-main:  #e2e8f0;
  --text-muted: #6b8a8a;
  --shadow-soft: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-hover:0 10px 30px rgba(0,0,0,0.4);
  background-color: var(--bg-main);
  color: var(--text-main);
}

/* dark mode specific overrides */
body.dark-mode .header          { background: #161b22; border-bottom-color: #1e3030; }
body.dark-mode .card            { background: var(--bg-card); border-color: var(--border-soft); }
body.dark-mode .form-control    { background: #0d1117; border-color: var(--border-soft); color: var(--text-main); }
body.dark-mode .form-control:focus { background: #0d1117; border-color: var(--primary); }
body.dark-mode .footer          { background: #161b22; border-top-color: #1e3030; }
body.dark-mode .table-container { background: var(--bg-card); border-color: var(--border-soft); }
body.dark-mode th               { background: #0a2020; }
body.dark-mode tr:hover td      { background: #0d1a1a; }
body.dark-mode td, body.dark-mode th { border-bottom-color: var(--border-soft); }
body.dark-mode .btn-outline     { border-color: var(--primary-deep); color: var(--primary-deep); }
body.dark-mode .btn-outline:hover { background: var(--bg-accent); }
body.dark-mode .hero            { background: radial-gradient(circle at top, #0a2020, var(--bg-main) 70%); }
body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4               { color: var(--primary-deep); }
body.dark-mode .nav-balance,
body.dark-mode .nav-cart,
body.dark-mode .nav-user-btn    { background: #0a2020; border-color: var(--border-soft); }
body.dark-mode .nav-dropdown    { background: #161b22; border-color: #1e3030; box-shadow: 0 10px 30px rgba(0,0,0,0.4); }
body.dark-mode .nav-dropdown a:hover { background: #0a2020; }
body.dark-mode .nav-dropdown .logout-link:hover { background: rgba(185,28,28,0.15); }


/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; color: var(--primary-deep); }
a { color: var(--primary); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--primary-deep); }

/* Layout */
.container { width: min(92%, 1200px); margin: 0 auto; }
.main-content { flex: 1; padding: 3rem 0; }
.main-content.page-tight { padding-top: 0.75rem; }

/* Header & Nav */
.header {
  background: var(--bg-main);
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.5rem 0;
  box-shadow: 0 2px 10px rgba(44,36,22, 0.02);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 0.75rem; font-size: 1.5rem; font-weight: 800; color: var(--primary-deep); letter-spacing: -0.5px; text-decoration: none; }
.nav-logo { height: 34px; width: auto; object-fit: contain; }
.logo:hover { color: var(--primary); }
.nav-list { display: flex; gap: 1.5rem; list-style: none; align-items: center; flex-wrap: wrap; }
.nav-list a { font-weight: 500; font-size: 0.9rem; color: var(--text-main); text-decoration: none; transition: color 0.2s; }
.nav-list a.active, .nav-list a:hover { color: var(--primary); }
.balance-chip {
  display: inline-flex; align-items: center; gap: 0.3rem;
  background: var(--bg-accent); border: 1px solid var(--border-soft);
  border-radius: 20px; padding: 0.3rem 0.85rem;
  font-size: 0.82rem; font-weight: 700; color: var(--primary-deep) !important;
  transition: background 0.2s;
}
.balance-chip:hover { background: var(--champagne); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; transition: var(--transition-smooth);
  border: none; outline: none; text-decoration: none;
}
.btn-primary {
  background: var(--primary-deep); color: #FFFDF7;
  box-shadow: 0 4px 10px rgba(13, 79, 79, 0.15);
}
.btn-primary:hover {
  transform: translateY(-2px); box-shadow: 0 6px 15px rgba(13, 79, 79, 0.25); background: var(--primary); color: #FFFDF7;
}
.btn-outline {
  background: transparent; border: 1px solid var(--primary-deep); color: var(--primary-deep);
}
.btn-outline:hover {
  background: var(--bg-accent); transform: translateY(-2px); color: var(--primary-deep);
}
.btn-danger {
  background: var(--accent-coral); color: white;
}
.btn-danger:hover { background: var(--accent-terra); transform: translateY(-2px); color: white; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 16px; padding: 2rem;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-soft);
}
.card:hover {
  transform: translateY(-4px); border-color: var(--border-soft); box-shadow: var(--shadow-hover);
}
.card-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 2rem;
}

/* Hero Section */
.hero {
  text-align: center; padding: 6rem 1rem;
  display: flex; flex-direction: column; align-items: center; gap: 1.5rem;
  background: radial-gradient(circle at top, var(--bg-accent), var(--bg-main) 70%);
  border-radius: 24px;
  margin-bottom: 2rem;
  border: 1px solid var(--border-soft);
}
.hero h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); letter-spacing: -0.02em; color: var(--primary-deep); }
.hero h1 span { color: var(--accent-terra); }
.hero p { font-size: 1.125rem; color: var(--text-muted); max-width: 600px; }

/* Forms */
.form-group { margin-bottom: 1.5rem; text-align: left; }
.form-group label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; color: var(--text-main); font-weight: 600; }
.form-control {
  width: 100%; padding: 0.875rem 1rem;
  background: #FFFFFF;
  border: 1px solid var(--border-soft);
  border-radius: 8px; color: var(--text-main); font-family: var(--font-main);
  transition: var(--transition-fast);
}
.form-control::placeholder { color: #A89F91; }
.form-control:focus {
  outline: none; border-color: var(--primary); background: #FFFFFF; box-shadow: 0 0 0 3px rgba(26, 122, 122, 0.1);
}
textarea.form-control { resize: vertical; min-height: 100px; }

/* Tables */
.table-container { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border-soft); background: var(--bg-card); box-shadow: var(--shadow-soft); }
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: 1rem 1.5rem; border-bottom: 1px solid var(--border-soft); }
th { background: var(--bg-accent); font-weight: 600; color: var(--primary-deep); text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-main); }

/* Badges */
.badge {
  padding: 0.25rem 0.75rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
  display: inline-block;
}
.badge-success { background: rgba(26, 122, 122, 0.1); color: var(--primary); border: 1px solid rgba(26, 122, 122, 0.2); }
.badge-warning { background: rgba(26, 122, 122, 0.1); color: var(--accent-gold); border: 1px solid rgba(26, 122, 122, 0.2); }
.badge-danger { background: rgba(224, 122, 95, 0.1); color: var(--accent-coral); border: 1px solid rgba(224, 122, 95, 0.2); }
.badge-primary { background: rgba(13, 79, 79, 0.1); color: var(--primary-deep); border: 1px solid rgba(13, 79, 79, 0.2); }
.badge-category { background: rgba(193, 102, 74, 0.1); color: var(--accent-terra); border: 1px solid rgba(193, 102, 74, 0.2); }

/* Footer */
.footer {
  margin-top: auto; padding: 0.85rem 0; text-align: center; border-top: 1px solid var(--border-soft); color: var(--text-muted); font-size: 0.8rem; background: var(--bg-card);
}

/* Admin Sidebar Layout */
.admin-layout { display: flex; min-height: 100vh; background: var(--bg-main); }
.admin-sidebar {
  width: 260px; background: var(--bg-card); border-right: 1px solid var(--border-soft);
  padding: 2rem 0; display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.admin-sidebar .logo { padding: 0 1.5rem 2rem; display: block; }
.admin-nav { display: flex; flex-direction: column; gap: 0.5rem; padding: 0 1rem; }
.admin-nav a {
  padding: 0.75rem 1rem; border-radius: 8px; display: flex; align-items: center; gap: 0.75rem; color: var(--text-main); font-weight: 500; transition: var(--transition-fast);
}
.admin-nav a:hover, .admin-nav a.active {
  background: var(--bg-accent); color: var(--primary-deep);
}
.admin-main { flex: 1; padding: 2rem 3rem; overflow-y: auto; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }

/* Auth Layout */
.auth-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 2rem; background: radial-gradient(circle at top, var(--bg-accent), var(--bg-main)); }
.auth-card { width: 100%; max-width: 400px; background: #FFFFFF; }
.auth-header { text-align: center; margin-bottom: 2rem; }
.auth-header h1 { font-size: 1.75rem; margin-bottom: 0.5rem; color: var(--primary-deep); }
.auth-header p { color: var(--text-muted); }

/* Product Details */
.product-detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.product-image { border-radius: 16px; overflow: hidden; border: 1px solid var(--border-soft); aspect-ratio: 4/3; background: #FFFFFF; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-soft);}
.product-info h1 { font-size: 2.5rem; margin-bottom: 1rem; color: var(--primary-deep); }
.product-price { font-size: 2rem; font-weight: 700; color: var(--primary); margin: 1.5rem 0; }
.product-meta { display: flex; gap: 1rem; margin-bottom: 2rem; }

/* Layout Classes */
.dashboard-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 2rem; }
.auth-form-area { flex: 1; display: flex; flex-direction: column; justify-content: center; padding: 3rem; background: var(--bg-main); }

@media (max-width: 768px) {
  /* Header & Navigation */
  .nav-container { flex-direction: row; gap: 0.5rem; padding: 0.5rem 1rem; }
  .nav-list { display: flex !important; flex-wrap: nowrap; justify-content: center; align-items: center; gap: 0.5rem; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .nav-list a { font-size: 0.85rem; white-space: nowrap; }
  .btn { padding: 0.5rem 0.75rem; font-size: 0.85rem; }
  .nav-logo { height: 28px; }
  
  /* Layouts */
  .dashboard-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .product-detail-layout { grid-template-columns: 1fr; gap: 2rem; }
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; height: auto; position: static; padding: 1rem; border-right: none; border-bottom: 1px solid var(--border-soft); }
  .admin-main { padding: 1.5rem 1rem; }
  
  /* Spacing Adjustments */
  .main-content { padding: 1.5rem 0; }
  .card { padding: 1.5rem 1rem; }
  .hero { padding: 3rem 1rem; }
  .auth-form-area { padding: 1.5rem; }
  
  /* Typography */
  h1 { font-size: 1.75rem !important; }
}

/* Helpers */
.text-accent-coral { color: var(--accent-coral) !important; }
.text-primary-deep { color: var(--primary-deep) !important; }
.text-gold { color: var(--accent-gold) !important; }
.bg-accent { background-color: var(--bg-accent) !important; }