:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary: #64748b;
  --accent: #0891b2;
  --success: #16a34a;
  --success-light: #dcfce7;
  --warning: #d97706;
  --warning-light: #fef3c7;
  --error: #dc2626;
  --error-light: #fee2e2;
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; }
body { font-family: var(--font); background: var(--neutral-100); color: var(--neutral-800); line-height: 1.5; }

.topbar { background: var(--neutral-900); color: #fff; padding: 0; position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow); }
.topbar--admin { background: var(--primary); }
.topbar-inner { max-width: 1280px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; height: 64px; }
.brand { font-size: 1.25rem; font-weight: 700; color: #fff; text-decoration: none; letter-spacing: -0.02em; }
.topnav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-link { color: rgba(255,255,255,0.8); text-decoration: none; padding: 8px 16px; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500; transition: all 0.2s; }
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.12); }
.nav-link.active { color: #fff; background: rgba(255,255,255,0.2); }
.nav-admin { background: rgba(255,255,255,0.15); }
.nav-admin:hover { background: rgba(255,255,255,0.25); }

.container { max-width: 1280px; margin: 0 auto; padding: 32px 24px; }
.admin-container { max-width: 1100px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 20px; border: none; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 600; cursor: pointer; text-decoration: none; transition: all 0.2s; font-family: var(--font); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--neutral-200); color: var(--neutral-700); }
.btn-secondary:hover { background: var(--neutral-300); }
.btn-danger { background: var(--error); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; }
.btn-lg { padding: 14px 32px; font-size: 1.1rem; }

/* Hero / Accueil */
.hero { text-align: center; padding: 48px 0 32px; }
.hero h1 { font-size: 2.5rem; font-weight: 800; color: var(--neutral-900); letter-spacing: -0.03em; margin-bottom: 16px; }
.hero-subtitle { font-size: 1.15rem; color: var(--neutral-500); max-width: 640px; margin: 0 auto 40px; }
.hero-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 720px; margin: 0 auto; }
.hero-card { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 40px 24px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); text-decoration: none; color: var(--neutral-800); transition: all 0.25s; border: 2px solid transparent; }
.hero-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--primary); }
.hero-card--atm:hover { border-color: var(--accent); }
.hero-card-icon { font-size: 2rem; font-weight: 800; color: var(--primary); padding: 16px 24px; background: var(--primary-light); border-radius: 50%; }
.hero-card--shop .hero-card-icon { background: var(--success-light); color: var(--success); }
.hero-card-title { font-size: 1.3rem; font-weight: 700; }
.hero-card-desc { font-size: 0.95rem; color: var(--neutral-500); text-align: center; }

.info-band { display: flex; justify-content: center; gap: 48px; margin-top: 48px; padding: 32px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.info-item { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.info-item strong { font-size: 2rem; font-weight: 800; color: var(--primary); }
.info-item span { font-size: 0.9rem; color: var(--neutral-500); }

.footer { text-align: center; padding: 24px; color: var(--neutral-400); font-size: 0.85rem; }

/* DAB */
.atm { display: flex; justify-content: center; padding: 24px 0; }
.atm-screen { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 48px 40px; max-width: 560px; width: 100%; min-height: 500px; display: flex; flex-direction: column; justify-content: center; }
.atm-screen h2 { font-size: 1.6rem; text-align: center; margin-bottom: 24px; color: var(--neutral-900); }
.atm-instruction { text-align: center; color: var(--neutral-600); margin-bottom: 32px; font-size: 1.1rem; }
.rfid-zone { display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 40px; margin-bottom: 24px; background: var(--neutral-50); border: 2px dashed var(--neutral-300); border-radius: var(--radius); }
.rfid-pulse { width: 64px; height: 64px; border-radius: 50%; background: var(--primary-light); border: 3px solid var(--primary); animation: pulse 2s infinite; }
@keyframes pulse { 0% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.15); opacity: 0.6; } 100% { transform: scale(1); opacity: 1; } }
.rfid-zone span { color: var(--neutral-500); font-size: 0.9rem; }
.atm-hint { text-align: center; color: var(--neutral-400); font-size: 0.85rem; margin-bottom: 16px; }
.atm-manual-form { display: flex; gap: 8px; }
.atm-input { flex: 1; padding: 12px 16px; border: 2px solid var(--neutral-200); border-radius: var(--radius-sm); font-size: 1rem; font-family: var(--font); transition: border-color 0.2s; }
.atm-input:focus { outline: none; border-color: var(--primary); }
.atm-card-info { text-align: center; color: var(--neutral-500); margin-bottom: 24px; }
.pin-dots { display: flex; justify-content: center; gap: 16px; margin-bottom: 32px; }
.pin-dots span { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--neutral-300); transition: all 0.2s; }
.pin-dots span.filled { background: var(--primary); border-color: var(--primary); }
.pin-pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; max-width: 300px; margin: 0 auto; }
.pin-key { padding: 20px; font-size: 1.4rem; font-weight: 700; border: 2px solid var(--neutral-200); border-radius: var(--radius-sm); background: #fff; cursor: pointer; transition: all 0.15s; font-family: var(--font); }
.pin-key:hover { background: var(--neutral-50); border-color: var(--primary); }
.pin-key:active { transform: scale(0.95); background: var(--primary-light); }
.pin-key--action { font-size: 0.9rem; color: var(--neutral-500); }
.atm-balance { text-align: center; font-size: 1.2rem; margin-bottom: 28px; color: var(--neutral-700); }
.atm-balance strong { color: var(--success); font-size: 1.5rem; }
.atm-actions { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 20px; }
.atm-custom-form { display: flex; gap: 8px; margin-bottom: 20px; }
.atm-error { color: var(--error); text-align: center; min-height: 24px; margin-top: 16px; font-weight: 500; }
.atm-receipt { background: var(--success-light); border: 1px solid var(--success); border-radius: var(--radius-sm); padding: 20px; margin-top: 16px; text-align: center; color: var(--neutral-700); }

/* Magasin */
.shop-header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; flex-wrap: wrap; }
.shop-header h1 { font-size: 2rem; font-weight: 700; color: var(--neutral-900); }
.shop-search { display: flex; gap: 12px; flex: 1; min-width: 300px; }
.shop-input, .shop-select { padding: 10px 16px; border: 2px solid var(--neutral-200); border-radius: var(--radius-sm); font-size: 0.95rem; font-family: var(--font); }
.shop-input { flex: 1; }
.shop-input:focus, .shop-select:focus { outline: none; border-color: var(--primary); }
.cart-badge { margin-left: auto; }
.cart-link { position: relative; }
.cart-count { background: var(--error); color: #fff; border-radius: 999px; padding: 2px 10px; font-size: 0.85rem; font-weight: 700; margin-left: 4px; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.product-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; display: flex; flex-direction: column; gap: 8px; transition: all 0.2s; border: 1px solid var(--neutral-200); }
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: var(--neutral-300); }
.product-card-name { font-weight: 600; font-size: 0.95rem; color: var(--neutral-800); line-height: 1.3; }
.product-card-cat { font-size: 0.8rem; color: var(--neutral-400); text-transform: uppercase; letter-spacing: 0.05em; }
.product-card-price { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin-top: auto; }
.product-card .btn { margin-top: 8px; }
.loading { text-align: center; color: var(--neutral-400); padding: 48px; }

/* Checkout */
.cart-table { width: 100%; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); border-collapse: collapse; overflow: hidden; }
.cart-table th, .cart-table td { padding: 16px; text-align: left; border-bottom: 1px solid var(--neutral-200); }
.cart-table th { background: var(--neutral-50); font-weight: 600; font-size: 0.9rem; color: var(--neutral-500); text-transform: uppercase; letter-spacing: 0.05em; }
.cart-qty { width: 72px; padding: 6px 10px; border: 2px solid var(--neutral-200); border-radius: var(--radius-sm); font-family: var(--font); }
.cart-qty:focus { outline: none; border-color: var(--primary); }
.cart-total-label { text-align: right; font-weight: 700; font-size: 1.1rem; }
.cart-total-value { font-weight: 800; color: var(--primary); font-size: 1.2rem; }
.checkout-actions { display: flex; justify-content: space-between; margin-top: 24px; }

/* Order */
.order { max-width: 640px; margin: 0 auto; }
.order-summary { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin-bottom: 32px; }
.order-summary h2 { font-size: 1.2rem; margin-bottom: 16px; }
.order-items { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.order-items li { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--neutral-100); font-size: 0.95rem; }
.order-total { text-align: right; font-size: 1.2rem; margin-top: 16px; }
.order-total strong { color: var(--primary); font-size: 1.4rem; }
.payment-section { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.payment-section h2 { font-size: 1.2rem; margin: 24px 0 16px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 0.9rem; font-weight: 500; color: var(--neutral-600); margin-bottom: 6px; }
.form-input { width: 100%; padding: 12px 16px; border: 2px solid var(--neutral-200); border-radius: var(--radius-sm); font-size: 1rem; font-family: var(--font); transition: border-color 0.2s; }
.form-input:focus { outline: none; border-color: var(--primary); }
.form-input-sm { width: auto; padding: 6px 10px; font-size: 0.9rem; }
.form-row-inline { display: flex; gap: 16px; }
.form-row-inline > div { flex: 1; }
.form-error { background: var(--error-light); color: var(--error); padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-weight: 500; }
.order-error { color: var(--error); min-height: 24px; margin-top: 16px; font-weight: 500; }
.order-success { background: var(--success-light); border: 1px solid var(--success); border-radius: var(--radius-sm); padding: 24px; margin-top: 16px; text-align: center; }
.order-success h3 { color: var(--success); margin-bottom: 8px; }
.empty-state { text-align: center; padding: 48px; color: var(--neutral-400); font-size: 1.1rem; }
.empty-state a { color: var(--primary); }
.back-link { display: inline-block; margin-top: 16px; color: var(--neutral-500); text-decoration: none; }

/* Admin */
.admin-login { max-width: 420px; margin: 60px auto; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 48px 40px; text-align: center; }
.admin-login-icon { display: inline-flex; align-items: center; justify-content: center; width: 72px; height: 72px; border-radius: 50%; background: var(--primary-light); color: var(--primary); margin-bottom: 24px; }
.admin-login h1 { font-size: 1.6rem; font-weight: 700; color: var(--neutral-900); margin-bottom: 8px; }
.admin-login-subtitle { font-size: 0.95rem; color: var(--neutral-500); margin-bottom: 32px; }
.admin-login-form { text-align: left; }
.admin-login-form .form-input { padding: 12px 16px; }
.admin-login-form .btn { width: 100%; margin-top: 16px; padding: 14px; font-size: 1rem; }
.admin-login .back-link { display: inline-block; margin-top: 28px; color: var(--neutral-400); font-size: 0.9rem; text-decoration: none; transition: color 0.2s; }
.admin-login .back-link:hover { color: var(--primary); }
.admin-container h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 24px; color: var(--neutral-900); }
.admin-container h2 { font-size: 1.2rem; font-weight: 600; margin: 24px 0 16px; color: var(--neutral-700); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; text-align: center; }
.stat-value { display: block; font-size: 2rem; font-weight: 800; color: var(--primary); }
.stat-label { display: block; font-size: 0.85rem; color: var(--neutral-500); margin-top: 4px; }
.stats-amounts { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.amount-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; display: flex; flex-direction: column; gap: 8px; }
.amount-label { font-size: 0.9rem; color: var(--neutral-500); }
.amount-value { font-size: 1.6rem; font-weight: 800; color: var(--success); }
.admin-table { width: 100%; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); border-collapse: collapse; overflow: hidden; margin-bottom: 24px; }
.admin-table th, .admin-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--neutral-100); font-size: 0.9rem; }
.admin-table th { background: var(--neutral-50); font-weight: 600; color: var(--neutral-500); text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.05em; }
.admin-table tbody tr:hover { background: var(--neutral-50); }
.admin-search-bar { display: flex; gap: 12px; margin-bottom: 24px; }
.admin-search-bar .form-input { flex: 1; }
.inline-form { display: flex; gap: 8px; align-items: center; }
.admin-form { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; max-width: 480px; }
.admin-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 0.95rem; color: var(--neutral-700); cursor: pointer; }
.checkbox-label input { width: 18px; height: 18px; cursor: pointer; }
.admin-product-thumb { width: 48px; height: 48px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--neutral-200); }
.no-photo { color: var(--neutral-300); font-size: 1.1rem; }
.product-image-preview { display: flex; flex-direction: column; gap: 12px; }
.product-image-preview img { width: 120px; height: 120px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--neutral-200); }
.logo-section { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; max-width: 480px; margin-bottom: 24px; }
.logo-preview { margin-bottom: 16px; }
.logo-preview-img { max-height: 80px; max-width: 240px; object-fit: contain; border-radius: var(--radius-sm); }
.logo-hint { color: var(--neutral-500); font-size: 0.9rem; margin-bottom: 16px; }
.brand-logo { max-height: 40px; max-width: 180px; object-fit: contain; }

@media (max-width: 768px) {
  .topbar-inner { flex-direction: column; height: auto; padding: 12px; gap: 8px; }
  .topnav { justify-content: center; }
  .hero h1 { font-size: 1.8rem; }
  .hero-subtitle { font-size: 1rem; }
  .info-band { flex-direction: column; gap: 16px; }
  .atm-screen { padding: 24px 16px; }
  .pin-key { padding: 14px; font-size: 1.1rem; }
  .shop-header { flex-direction: column; align-items: stretch; }
  .cart-badge { margin-left: 0; }
  .form-row-inline { flex-direction: column; }
  .cart-table { font-size: 0.85rem; }
  .cart-table th, .cart-table td { padding: 8px; }
}