/* ==========================================================================
   HDU TEKEL BARKOD SİSTEMİ - PREMIUM LIGHT (DOĞAL TONLAR) CSS TASARIMI
   ========================================================================== */

/* Temel Değişkenler & Tasarım Sistemi (Açık Renk - Doğal Tonlar) */
:root {
    --bg-primary: #f4f6f9;      /* Yumuşak kırık beyaz / kum tonu */
    --bg-secondary: #ffffff;    /* Saf beyaz kartlar ve menü */
    --bg-surface: #f8fafc;      /* Hafif grimsi/mavi arkaplan yüzeyleri */
    --bg-surface-hover: #f1f5f9;
    
    --border-color: #e2e8f0;    /* Temiz, yumuşak gri kenarlık */
    --border-color-hover: #cbd5e1;
    
    /* Doğal ve Güven Veren Orman Yeşili & Toprak Kehribarı */
    --accent-green: #0f766e;    /* Doğal Orman Yeşili */
    --accent-green-hover: #115e59;
    --accent-green-glow: rgba(15, 118, 110, 0.15);
    
    --accent-amber: #d97706;    /* Sıcak Toprak Kehribarı (Fiyatlar & Dikkat Çekici Noktalar) */
    --accent-amber-hover: #b45309;
    --accent-amber-glow: rgba(217, 119, 6, 0.15);
    
    --text-primary: #1e293b;    /* Koyu Kömür - Üst düzey okunabilirlik */
    --text-secondary: #475569;  /* Orta koyu gri */
    --text-muted: #64748b;      /* Silik gri metinler */
    
    /* Durum Renkleri */
    --color-success: #10b981;
    --color-success-bg: #ecfdf5;
    --color-danger: #ef4444;
    --color-danger-bg: #fef2f2;
    --color-primary: #2563eb;
    --color-primary-bg: #eff6ff;
    
    /* Efektler */
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.03), 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.05), 0 1px 4px rgba(15, 23, 42, 0.03);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.03);
    --transition-smooth: all 0.2s ease-in-out;
    --border-radius: 12px;
}

/* Sıfırlama ve Genel Ayarlar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

/* Başlıklar */
h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

/* ==========================================================================
   LAYOUT YERLEŞİM (SOL SIDEBAR VE SAĞ İÇERİK ALANI)
   ========================================================================== */
.app-layout {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* SOL YAN MENÜ (SIDEBAR - HOVER EXPANDABLE OVERLAY TASARIM) */
.app-sidebar {
    width: 80px; /* Varsayılan kapalı genişlik */
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 950;
    display: flex;
    flex-direction: column;
    padding: 1.5rem 0.5rem; /* Kapalıyken kompakt iç boşluk */
    box-shadow: var(--shadow-sm);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden; /* Taşmaları önle */
}

/* Mouse üstüne geldiğinde genişler (Üst üste biner, sayfa kaymaz!) */
.app-sidebar:hover {
    width: 250px; /* Genişletilmiş genişlik */
    padding: 1.5rem 1.1rem;
    box-shadow: var(--shadow-lg);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2.2rem;
    padding: 0;
    height: 38px;
    transition: justify-content 0.3s ease;
}

.app-sidebar:hover .sidebar-header {
    justify-content: flex-start;
    padding: 0 0.4rem;
}

.app-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    white-space: nowrap;
}

/* Kapalıyken yazıları tamamen gizle, hover durumunda akıcı aç */
.logo-text,
.nav-text,
.user-info,
.logout-text {
    opacity: 0;
    visibility: hidden;
    width: 0;
    max-width: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: opacity 0.2s ease, visibility 0.2s ease, width 0.2s ease, max-width 0.2s ease;
}

.app-sidebar:hover .logo-text,
.app-sidebar:hover .nav-text,
.app-sidebar:hover .user-info,
.app-sidebar:hover .logout-text {
    opacity: 1;
    visibility: visible;
    width: auto;
    max-width: 180px;
    transition-delay: 0.05s;
}

.logo-text h1 {
    font-size: 1.25rem;
    color: var(--accent-green);
    line-height: 1.1;
}

.logo-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    display: block;
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* Menü Butonları */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.8rem 0; /* Kapalıyken dikey ortalanmış dar padding */
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.95rem;
    transition: padding 0.3s ease, gap 0.3s ease, background 0.2s, color 0.2s;
    border: 1px solid transparent;
    width: 100%;
}

.app-sidebar:hover .nav-item {
    justify-content: flex-start;
    gap: 1.1rem;
    padding: 0.8rem 1.1rem;
}

.nav-item:hover {
    color: var(--accent-green);
    background: var(--bg-surface);
}

.nav-item.active {
    color: var(--accent-green);
    background: var(--color-success-bg);
    border-left: 4px solid var(--accent-green); /* Premium sol dikey vurgu çizgisi */
    border-radius: 0 8px 8px 0; /* Solu düz, sağ köşeleri yuvarlak premium kesim */
}

.app-sidebar:hover .nav-item.active {
    padding-left: 0.8rem;
}

.nav-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    margin-left: 0;
    transition: color 0.2s;
}

.nav-item.active .nav-icon {
    color: var(--accent-green);
}

/* Sidebar Alt Panel (Profil ve Çıkış) */
.sidebar-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 1.2rem;
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.user-profile {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0.4rem; /* Kapalıyken dar padding */
    background: var(--bg-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: padding 0.3s ease, justify-content 0.3s ease, gap 0.3s ease;
}

.app-sidebar:hover .user-profile {
    justify-content: flex-start;
    gap: 0.8rem;
    padding: 0.6rem 0.8rem; /* Açıldığında premium geniş padding */
}

.avatar-letter {
    width: 36px;
    height: 36px;
    background: var(--accent-green);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    font-weight: 800;
    text-transform: uppercase;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
    margin-left: 0;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-info .username {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.user-info .role {
    font-size: 0.72rem;
    color: var(--accent-green);
    text-transform: uppercase;
    font-weight: 700;
}

.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0.75rem 0; /* Kapalıyken ikon merkezli dikey padding */
    font-weight: 700;
    border-radius: var(--border-radius);
    transition: padding 0.3s ease, gap 0.3s ease;
}

.app-sidebar:hover .btn-logout {
    gap: 0.8rem;
    padding: 0.75rem 1.4rem; /* Açıldığında geniş padding */
}

.logout-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 0;
}

/* SAĞ TARAF - İÇERİK ALANI */
.app-content-wrapper {
    margin-left: 80px; /* Sabit 80px sol boşluk - SAYFA ASLA HAREKET ETMEZ VE KAYMAZ! */
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-main-content {
    padding: 2rem 2.5rem;
    flex: 1;
}

.app-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 1.2rem 2.5rem;
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ==========================================================================
   GİRİŞ EKRANI (AÇIK RENK DOĞAL GİRİŞ)
   ========================================================================== */
.login-body {
    background: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    overflow: hidden;
}

.login-split-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* Sol Görsel Paneli - Büyük Ekranlarda Görünür */
.login-visual-panel {
    flex: 1.3;
    background: url('/static/images/tekel_shelf.png') no-repeat center center;
    background-size: cover;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: 5rem 4rem;
}

.login-visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(15, 118, 110, 0.15) 0%, rgba(15, 23, 42, 0.75) 60%, rgba(15, 23, 42, 0.95) 100%);
    z-index: 1;
}

.login-visual-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    color: #ffffff;
}

.login-visual-content h2 {
    font-size: 3.2rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.1;
    text-shadow: 0 4px 20px rgba(15, 23, 42, 0.5);
    font-family: 'Outfit', sans-serif;
}

.login-visual-content p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 1rem;
    font-weight: 500;
    line-height: 1.5;
    text-shadow: 0 2px 10px rgba(15, 23, 42, 0.4);
}

/* Sağ Form Paneli */
.login-form-panel {
    flex: 0.9;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 3rem;
    box-shadow: -12px 0 36px rgba(15, 23, 42, 0.04);
    z-index: 10;
    position: relative;
    border-left: 1px solid var(--border-color);
}

.login-form-container {
    width: 100%;
    max-width: 380px;
}

.login-header {
    text-align: left;
    margin-bottom: 2.2rem;
}

.login-brand-meta {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent-green);
    display: block;
    margin-bottom: 0.4rem;
}

.login-header h2 {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper .input-icon {
    position: absolute;
    left: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 5;
}

.input-wrapper input[type="text"],
.input-wrapper input[type="password"],
.input-wrapper input {
    padding-left: 3rem !important;
    height: 48px;
    font-size: 0.92rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
}

.input-wrapper input:focus + .input-icon {
    color: var(--accent-green);
}

.btn-login {
    height: 48px;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-top: 1rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 14px var(--accent-green-glow);
}

.login-footer {
    text-align: left;
    margin-top: 2.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 1.2rem;
    line-height: 1.4;
}

/* Giriş Hatası Alert Tasarımı */
.alert-login-danger {
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    padding: 0.8rem 1rem;
    border-radius: 10px;
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

@media (max-width: 1024px) {
    .login-visual-panel {
        padding: 3rem 2rem;
    }
    .login-visual-content h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 900px) {
    .login-visual-panel {
        display: none;
    }
    .login-form-panel {
        flex: 1;
        padding: 3rem 2rem;
        border-left: none;
    }
}

/* ==========================================================================
   BUTONLAR VE INPUT GRUPLARI
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.4rem;
    font-size: 0.92rem;
    font-weight: 700;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--accent-green);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--accent-green-hover);
    box-shadow: 0 4px 12px var(--accent-green-glow);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

.btn-logout {
    background: var(--bg-surface);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-logout:hover {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.2);
}

.btn-outline-primary {
    background: transparent;
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.btn-outline-primary:hover {
    background: var(--accent-green);
    color: #ffffff;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 8px;
}

/* Form Elemanları */
.form-group {
    margin-bottom: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
}

input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px var(--accent-green-glow);
}

/* ==========================================================================
   CIRO GÖSTERGELERİ (DASHBOARD STATS)
   ========================================================================== */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.2rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-color-hover);
}

.stat-daily::after { background: var(--color-success); }
.stat-weekly::after { background: var(--color-primary); }
.stat-monthly::after { background: var(--accent-amber); }
.stat-yearly::after { background: #8b5cf6; }

.stat-icon {
    font-size: 2rem;
    width: 54px;
    height: 54px;
    border-radius: var(--border-radius);
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.stat-info h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

.stat-value {
    font-size: 1.7rem;
    font-weight: 800;
    margin-top: 0.2rem;
    font-family: 'Outfit', sans-serif;
}

.stat-daily .stat-value { color: var(--color-success); }
.stat-weekly .stat-value { color: var(--color-primary); }
.stat-monthly .stat-value { color: var(--accent-amber); }
.stat-yearly .stat-value { color: #8b5cf6; }

/* ==========================================================================
   ANA GRİD SATIŞ PANELİ
   ========================================================================== */
.pos-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.8rem;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    height: auto;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.pos-grid .card {
    height: 100%;
}

.card-header {
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
    flex: 1;
}

/* Tarama Formu */
.scan-form {
    margin-bottom: 1.5rem;
}

.form-group-large {
    display: flex;
    gap: 0.5rem;
}

.form-group-large input {
    font-size: 1.15rem;
    padding: 0.9rem 1.2rem;
    background: #ffffff;
    border: 2px solid var(--border-color);
    letter-spacing: 0.02em;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.form-group-large input:focus {
    border-color: var(--accent-green);
}

/* Kamera ve Scanner */
.camera-scanner-container {
    margin-bottom: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.8rem;
    background: #f1f5f9;
}

.scanner-viewport {
    width: 100%;
    max-height: 240px;
    border-radius: 8px;
    overflow: hidden;
}

/* Ürün Bulundu/Bekleniyor Kartı */
.scanned-product-card {
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.scanned-product-card.empty-state {
    background: var(--bg-surface);
    border: 2px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 220px;
    text-align: center;
}

.pulse-icon {
    font-size: 3rem;
    display: inline-block;
    animation: pulse 2s infinite;
    margin-bottom: 0.8rem;
}

.empty-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.empty-text .sub {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
}

/* Bulunan Ürün Detayı */
.product-detail-active {
    background: var(--bg-surface);
    border: 1px solid var(--border-color-hover);
    box-shadow: var(--shadow-sm);
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.8rem;
}

.detail-header h3 {
    font-size: 1.35rem;
    color: var(--accent-green);
    font-weight: 800;
}

.detail-header .barcode-badge {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 0.3rem 0.6rem;
    font-size: 0.78rem;
    border-radius: 6px;
    letter-spacing: 0.02em;
    color: var(--text-secondary);
    font-family: monospace;
    font-weight: 600;
}

.detail-info-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item {
    background: #ffffff;
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.info-item span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 0.2rem;
}

.info-item p {
    font-size: 1.2rem;
    font-weight: 800;
}

.info-item p.price-val {
    color: var(--accent-amber);
    font-size: 1.4rem;
    font-family: 'Outfit';
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.quantity-control label {
    font-size: 0.95rem;
    font-weight: 700;
}

.qty-btn {
    width: 38px;
    height: 38px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.qty-btn:hover {
    background: var(--bg-surface);
}

.quantity-control input {
    width: 60px;
    text-align: center;
    font-weight: 800;
    font-size: 1.1rem;
    padding: 0.5rem;
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   TABLI HIZLI ÜRÜN SEÇİMİ
   ========================================================================== */
.tab-headers {
    display: flex;
    background: var(--bg-surface);
    padding: 0.3rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 0.8rem;
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 0.88rem;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition-smooth);
    letter-spacing: 0.02em;
}

.tab-btn:hover {
    color: var(--accent-green);
}

.tab-btn.active {
    background: #ffffff;
    color: var(--accent-green);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(15, 118, 110, 0.1);
}

.padding-top-none {
    padding-top: 0;
}

.tab-contents {
    padding: 1.2rem 0 0 0;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Hızlı Butonlar Izgarası */
.quick-items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); /* Sütun genişliği 130px'ten 96px'e daraltıldı */
    gap: 0.4rem; /* Aralıklar daraltıldı */
    max-height: 380px;
    overflow-y: auto;
}

.quick-item-btn {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.7rem 0.4rem; /* Buton içi boşluklar dikeyde 1.2rem'den 0.7rem'e düşürüldü */
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 0.3rem; /* Buton içi eleman aralıkları düşürüldü */
    min-height: 76px; /* Dikey yükseklik 110px'ten 76px'e çekilerek şıkça küçültüldü */
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.quick-item-btn:hover {
    transform: translateY(-2px);
    border-color: var(--accent-green);
    box-shadow: 0 4px 12px var(--accent-green-glow);
}

.quick-item-btn .item-name {
    font-size: 0.80rem; /* İsim boyutu 0.88rem'den 0.80rem'e çekildi */
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.quick-item-btn .item-price {
    font-size: 0.94rem; /* Fiyat boyutu 1.15rem'den 0.94rem'e çekildi */
    font-weight: 800;
    color: var(--accent-amber);
    font-family: 'Outfit';
}

/* Hızlı Buton Kenar Vurguları */
.item-cigarette {
    border-left: 4px solid var(--accent-amber);
}

.item-other {
    border-left: 4px solid var(--accent-green);
}

/* ==========================================================================
   TABLOLAR VE LİSTELER
   ========================================================================== */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th, .table td {
    padding: 1.1rem 1.4rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.92rem;
}

.table th {
    font-weight: 700;
    color: var(--text-secondary);
    background: var(--bg-surface);
}

.table-hover tbody tr:hover {
    background: var(--bg-surface);
}

/* Badgeler */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    font-size: 0.74rem;
    font-weight: 700;
    border-radius: 6px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.badge-barcode {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: monospace;
    text-transform: none;
}

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.badge-danger {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

.badge-primary {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.badge-quick-info {
    background: var(--accent-green-glow);
    color: var(--accent-green);
    border: 1px solid rgba(15, 118, 110, 0.2);
    margin-left: 0.5rem;
}

/* Premium Ödeme Yöntemi Badgeleri (Emojisiz ve Ultra Şık) */
.badge-payment-nakit {
    background: rgba(16, 185, 129, 0.06);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.18);
}

.badge-payment-kart {
    background: rgba(37, 99, 235, 0.06);
    color: #2563eb;
    border: 1px solid rgba(37, 99, 235, 0.18);
}

.badge-payment-veresiye {
    background: rgba(217, 119, 6, 0.06);
    color: #d97706;
    border: 1px solid rgba(217, 119, 6, 0.18);
}

.badge-payment-parcali {
    background: rgba(6, 182, 212, 0.06);
    color: #06b6d4;
    border: 1px solid rgba(6, 182, 212, 0.18);
}

/* ==========================================================================
   EXCEL TARZI INLINE DÜZENLEME (ÜRÜN ENVANTER SAYFASI)
   ========================================================================== */
.products-container-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.products-container-header h1 {
    font-size: 1.8rem;
}

.products-container-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.inline-editor-wrapper {
    display: inline-flex;
    align-items: center;
    background: #ffffff;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.3rem 0.6rem;
    max-width: 140px;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.inline-editor-wrapper:focus-within {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px var(--accent-green-glow);
}

.inline-editor-wrapper input {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--text-primary);
    width: 60px;
    text-align: center;
    box-shadow: none !important;
}

.inline-editor-wrapper input::-webkit-outer-spin-button,
.inline-editor-wrapper input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.inline-editor-wrapper .unit,
.inline-editor-wrapper .currency-symbol {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 700;
}

.justify-end {
    justify-content: flex-end;
}

.inline-qty-input.stock-critical {
    color: var(--color-danger);
    background: var(--color-danger-bg);
}

/* ==========================================================================
   MODAL PENCERELER (AÇIK GLASS EFFECT)
   ========================================================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.45);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #ffffff;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 580px;
    border-radius: 20px;
    overflow: hidden;
    animation: modalSlideIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 1.2rem 1.8rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 1.3rem;
    color: var(--accent-green);
}

.close-modal-btn {
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.close-modal-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.8rem;
}

.modal-info-text {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.form-row .form-group:only-child,
.form-row:only-child {
    grid-column: span 2;
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   BİLDİRİM TOASTLAR
   ========================================================================== */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.toast {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.1rem 1.6rem;
    color: var(--text-primary);
    font-size: 0.92rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    min-width: 300px;
    animation: toastSlideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-success {
    border-left: 5px solid var(--color-success);
}

.toast-danger {
    border-left: 5px solid var(--color-danger);
}

.toast-info {
    border-left: 5px solid var(--color-primary);
}

/* ==========================================================================
   YARDIMCI SINIFLAR & ANİMASYONLAR
   ========================================================================== */
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.no-border { border: none !important; }
.no-padding { padding: 0 !important; }

.mobile-only {
    display: none !important;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 0.8; }
}

@keyframes modalSlideIn {
    from { transform: translateY(15px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes toastSlideIn {
    from { transform: translateX(50px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ==========================================================================
   MEDYA SORGULARI (RESPONSIVE)
   ========================================================================== */
@media (max-width: 1200px) {
    .pos-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    /* Mobil Düzen */
    .mobile-only {
        display: flex !important;
    }
    
    .app-sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
    }
    
    .app-sidebar.active {
        transform: translateX(0);
    }
    
    .app-content-wrapper {
        margin-left: 0;
        padding-top: 60px; /* Header yüksekliği */
    }
    
    .mobile-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 60px;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 1.2rem;
        z-index: 800;
        box-shadow: var(--shadow-sm);
    }
    
    .menu-trigger-btn {
        background: transparent;
        border: none;
        font-size: 1.5rem;
        cursor: pointer;
        color: var(--text-primary);
    }
    
    .mobile-logo {
        font-family: 'Outfit';
        font-weight: 800;
        font-size: 1.1rem;
        color: var(--accent-green);
    }
    
    .mobile-avatar {
        width: 32px;
        height: 32px;
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.9rem;
    }
    
    .app-main-content {
        padding: 1.2rem 1.5rem;
    }
    
    .app-footer {
        padding: 1.2rem 1.5rem;
    }
    
    .sidebar-toggle-btn {
        background: transparent;
        border: none;
        font-size: 1.4rem;
        cursor: pointer;
        color: var(--text-muted);
    }
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    .form-row .form-group {
        grid-column: span 2;
    }
}

/* ==========================================================================
   BENİMPOS SATIŞ EKRANI TASARIMI (YENİ EKLEMELER)
   ========================================================================== */

/* Üst Aksiyon ve Arama Barı */
.pos-top-action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    gap: 1.5rem;
    flex-wrap: wrap;
}

.pos-search-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1.2;
    min-width: 320px;
    max-width: 520px; /* Aşırı uzamayı engellemek için şık sınır */
}

.price-dropdown-wrapper select {
    padding: 0.7rem 1.5rem 0.7rem 1rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    font-weight: 700;
    color: var(--text-secondary);
    border-radius: 6px;
    outline: none;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

.scan-form-inline {
    display: flex;
    flex: 1;
    gap: 0.3rem;
}

.scan-form-inline input {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 0.7rem 1rem;
    border: 2px solid var(--accent-green);
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
}

.scan-form-inline input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

/* POS Üst Butonları */
.btn-pos-blue {
    background: #0284c7;
    color: white;
    font-weight: 700;
    padding: 0.7rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    border: none;
}
.btn-pos-blue:hover { background: #0369a1; }

.btn-pos-green {
    background: #10b981;
    color: white;
    font-weight: 700;
    padding: 0.7rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    border: none;
}
.btn-pos-green:hover { background: #059669; }

.btn-pos-orange {
    background: #f59e0b;
    color: white;
    font-weight: 700;
    padding: 0.7rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    border: none;
}
.btn-pos-orange:hover { background: #d97706; }

.btn-pos-cyan {
    background: #06b6d4;
    color: white;
    font-weight: 700;
    padding: 0.7rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    border: none;
}
.btn-pos-cyan:hover { background: #0891b2; }

/* Premium Tutar / Ödenen Gösterge Panelleri */
.pos-calculator-display {
    display: flex;
    align-items: stretch;
    gap: 0.6rem;
    flex: 1; /* Arama alanına daha fazla yer bırakmak için esnemeyi azalttık */
    min-width: 420px; /* Toplam genişliği daralttık */
}

.calc-box {
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    border-radius: 10px;
    padding: 0.5rem 0.8rem; /* Paddingleri hafif daralttık */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border-left: 5px solid var(--border-color);
    min-height: 70px; /* Dikey boyutu hafifçe azalttık */
}

.calc-box:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.calc-box span {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 0.15rem;
}

.calc-box input {
    width: 100%;
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
    font-size: 1.45rem; /* Rakam boyutunu hafifçe küçülttük */
    font-weight: 800;
    text-align: center;
    color: var(--accent-green);
    box-shadow: none !important;
    outline: none;
    font-family: 'Outfit', sans-serif;
    line-height: 1;
}

.calc-box p {
    font-size: 1.45rem; /* Rakam boyutunu hafifçe küçülttük */
    font-weight: 800;
    margin: 0;
    line-height: 1;
    font-family: 'Outfit', sans-serif;
}

/* Sepet toplam alanı (TUTAR) */
.calc-total {
    flex: 1.8; /* Genişliği hafifçe daralttık */
    min-width: 160px;
    border-left-color: #ef4444;
    background: rgba(239, 68, 68, 0.03);
    box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.05), var(--shadow-sm);
}

.calc-total:hover {
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.06), var(--shadow-md);
}

.calc-total span {
    color: #dc2626;
    font-weight: 800;
}

.calc-total p {
    font-size: 1.9rem; /* Rakam boyutunu 2.2rem'den 1.9rem'e düşürdük */
    font-weight: 900;
    color: #ef4444;
}

/* Diğer yardımcı göstergeler */
.calc-paid {
    flex: 1;
    min-width: 110px;
    border-left-color: var(--accent-green);
    background: rgba(15, 118, 110, 0.02);
}
.calc-paid input {
    color: var(--accent-green);
}

.calc-change {
    flex: 1;
    min-width: 110px;
    border-left-color: #10b981;
    background: rgba(16, 185, 129, 0.02);
}
.calc-change p {
    color: #10b981;
}

/* POS Ana Layout */
.pos-main-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 1.5rem;
}

.pos-cart-panel {
    min-height: 580px;
}

/* Çoklu Sepet Tabları */
.cart-tabs {
    display: flex;
    background: var(--bg-surface);
    padding: 0.3rem;
    border-bottom: 1px solid var(--border-color);
    gap: 0.2rem;
}

.cart-tab-btn {
    flex: 1;
    background: transparent;
    border: 1px solid transparent;
    padding: 0.65rem 0.4rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: var(--transition-smooth);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cart-tab-btn:hover {
    color: var(--accent-green);
    background: rgba(15, 118, 110, 0.05);
}

.cart-tab-btn.active {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* Sepet Üst Araç Çubuğu (Muhtelif Tutar vb.) */
.cart-toolbar {
    padding: 0.8rem 1.2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    background: var(--bg-surface);
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.toolbar-group input {
    padding: 0.45rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 6px;
    width: 140px;
}

.toolbar-group select {
    padding: 0.45rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 6px;
    width: 90px;
}

.toolbar-group .btn {
    padding: 0.45rem 1rem;
    font-size: 0.85rem;
    border-radius: 6px;
}

/* Sepet Tablosu */
.scrollable-cart {
    height: 420px;
    overflow-y: auto;
}

.pos-table {
    width: 100%;
    border-collapse: collapse;
}

.pos-table th {
    padding: 0.8rem 1rem;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.pos-table td {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    vertical-align: middle;
}

.pos-table tbody tr:hover {
    background: rgba(15, 118, 110, 0.02);
}

/* Miktar Kontrolleri */
.cart-qty-ctrl {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.qty-btn-xs {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.qty-btn-xs:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-color-hover);
}

.cart-qty-ctrl input {
    width: 42px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.2rem 0 !important;
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: none !important;
}

/* Sepet Silme Butonu */
.btn-cart-delete {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--color-danger);
    transition: var(--transition-smooth);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
}

.btn-cart-delete:hover {
    background: var(--color-danger-bg);
}

/* Boş Sepet Görünümü */
.cart-empty-row td {
    padding: 4rem 1rem !important;
}

.cart-empty-text {
    text-align: center;
    color: var(--text-secondary);
}

.cart-empty-text span {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.8rem;
    opacity: 0.5;
}

.cart-empty-text p {
    font-size: 0.95rem;
    font-weight: 700;
}

.cart-empty-text .sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 0.3rem;
}

/* SAĞ BÖLÜM (KONTROLLER VE HIZLI BUTONLAR) */
.pos-controls-panel {
    display: flex;
    flex-direction: column;
}

.padding-sm {
    padding: 1rem !important;
}

/* Müşteri Seçici */
.customer-picker-row {
    display: flex;
    gap: 0.4rem;
    margin-bottom: 0.8rem;
}

.customer-picker-row input {
    flex: 1;
    padding: 0.55rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 6px;
}

.customer-picker-row .btn {
    padding: 0.55rem 1rem;
    font-size: 0.85rem;
    border-radius: 6px;
}

/* Tarih Saat & Limit */
.pos-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.6rem;
    margin-bottom: 0.8rem;
}

.pos-digital-clock {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.pos-limit-info strong.green {
    color: var(--color-success);
}

.pos-limit-info .sub-link {
    color: var(--color-primary);
    cursor: pointer;
    text-decoration: underline;
}

/* Hızlı Nakit Kısayolları */
.quick-cash-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.3rem;
    margin-bottom: 1rem;
}

.cash-shortcut-btn {
    background: #eff6ff;
    color: var(--color-primary);
    border: 1px solid rgba(37, 99, 235, 0.15);
    padding: 0.4rem 0;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    transition: var(--transition-smooth);
}

.cash-shortcut-btn:hover {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* Büyük Ödeme Butonları Izgarası (Yatay & İkonsuz Premium Düzen) */
.payment-methods-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4 buton yan yana */
    gap: 0.25rem; /* Buton aralıkları daraltıldı */
    margin-top: 0.6rem;
}

.pay-method-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.1rem 0.2rem; /* Buton içi dikey nefes alma payı artırıldı */
    border-radius: 10px; /* Diğer premium kartlarla tam uyumlu yuvarlaklık */
    border: 1px solid transparent;
    cursor: pointer;
    color: white;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
    min-height: 86px; /* Dikey boyut (boyuna) aşağı doğru şık bir şekilde uzatıldı */
    text-align: center;
}

.pay-method-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    filter: brightness(1.08);
}

.pay-method-btn .pay-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1.15;
}

.pay-method-btn .pay-text strong {
    font-size: 0.85rem; /* Yazı boyutu anında fark edilecek düzeyde büyütüldü */
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.pay-method-btn .pay-text span {
    font-size: 0.68rem; /* Klavye kısayol (F) boyutları büyütüldü */
    font-weight: 600;
    opacity: 0.9;
    margin-top: 0.15rem;
}

/* Marka kimliğine tam uyumlu doğal orman ve toprak tonları */
.pay-cash {
    background: var(--accent-green); /* Marka Orman Yeşili */
    border-color: rgba(15, 118, 110, 0.15);
}
.pay-pos {
    background: #0d9488; /* Uyumlu Canlı Teal/Turkuaz */
    border-color: rgba(13, 148, 136, 0.15);
}
.pay-debt {
    background: var(--accent-amber); /* Marka Toprak Kehribarı */
    border-color: rgba(217, 119, 6, 0.15);
}
.pay-split {
    background: var(--text-secondary); /* Uyumlu Sıcak Kömür/Muted Gri */
    border-color: rgba(71, 85, 105, 0.15);
}

.scrollable-quick-items {
    max-height: 360px;
    overflow-y: auto;
}

@media (max-width: 900px) {
    /* Sıfırdan %100 Mobil Uyumlu Grid & Kapsayıcı Kuralları */
    html, body {
        width: 100% !important;
        max-width: 100vw !important;
        overflow-x: hidden !important;
        margin: 0 !important;
        padding: 0 !important;
        position: relative !important;
    }

    .app-layout {
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
        display: flex !important;
        flex-direction: column !important;
    }

    /* Sol Menü (Sidebar) - Mobilde Çekmece */
    .app-sidebar {
        width: 260px !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        transform: translateX(-100%) !important;
        z-index: 2000 !important;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        padding: 1.5rem 1rem !important;
    }

    .app-sidebar.active {
        transform: translateX(0) !important;
    }

    .app-sidebar:hover {
        width: 260px !important;
    }

    /* Mobil Sidebar Başlığı Sabitleme (Kaymaları & Çarpı Butonu Çift Tıklama Bugını Çözer) */
    .sidebar-header {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important; /* Logo solda, kapatma butonu sağda sabit */
        padding: 0 0.5rem !important;
        margin-bottom: 2.2rem !important;
        height: 38px !important;
        transition: none !important; /* Mobilde kayma animasyonunu tamamen kapat */
        width: 100% !important;
    }

    .app-sidebar:hover .sidebar-header {
        justify-content: space-between !important;
        padding: 0 0.5rem !important;
    }

    .sidebar-toggle-btn {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        font-size: 1.5rem !important;
        color: var(--text-muted) !important;
        cursor: pointer !important;
        background: transparent !important;
        border: none !important;
        padding: 0.5rem !important;
        margin-left: auto !important; /* Sağ köşeye kilitle */
    }

    /* Sidebar içindeki tüm elemanlar mobilde aktif */
    .logo-text, .nav-text, .user-info, .logout-text {
        opacity: 1 !important;
        visibility: visible !important;
        width: auto !important;
        max-width: none !important;
    }

    /* Mobil Profil Alanı Düzenleme (Üst üste binme & sıkışma bugını çözer) */
    .user-profile {
        display: flex !important;
        align-items: center !important;
        justify-content: flex-start !important; /* Her zaman sola yasla */
        gap: 0.8rem !important;                /* Daire ile yazı arası boşluk */
        padding: 0.6rem 0.8rem !important;      /* Ferah geniş padding */
        width: 100% !important;
        background: var(--bg-surface) !important;
        box-sizing: border-box !important;
    }

    .avatar-letter {
        margin-left: 0 !important;
        flex-shrink: 0 !important;
    }

    .user-info {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;    /* Metinleri sola yasla */
        text-align: left !important;
    }

    .nav-item {
        justify-content: flex-start !important;
        gap: 1.1rem !important;
        padding: 0.8rem 1.1rem !important;
    }

    /* Sağ İçerik Alanı - Mobilde Sıfır Sol Boşluk */
    .app-content-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        padding-top: 60px !important; /* Mobil header için */
        overflow-x: hidden !important;
        display: flex !important;
        flex-direction: column !important;
        box-sizing: border-box !important;
    }

    .app-main-content {
        padding: 0.6rem 0.4rem !important;
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
        box-sizing: border-box !important;
    }

    /* Mobil Üst Header */
    .mobile-header {
        height: 60px !important;
        padding: 0 1rem !important;
        width: 100% !important;
        max-width: 100% !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        z-index: 1500 !important;
        background: var(--bg-secondary) !important;
        border-bottom: 1px solid var(--border-color) !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        box-shadow: var(--shadow-sm) !important;
        box-sizing: border-box !important;
    }

    /* Mobil Satış Ekranı Düzeni */
    .pos-main-layout {
        display: flex !important;
        flex-direction: column !important;
        gap: 0.8rem !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .pos-cart-panel, 
    .pos-controls-panel {
        width: 100% !important;
        max-width: 100% !important;
        flex: none !important;
        box-sizing: border-box !important;
    }

    /* Kartlar mobilde tam sığmalı */
    .card {
        width: 100% !important;
        max-width: 100% !important;
        border-radius: 8px !important;
        margin-bottom: 0 !important;
        box-shadow: var(--shadow-sm) !important;
        box-sizing: border-box !important;
    }

    .card-body {
        padding: 0.8rem !important;
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
        box-sizing: border-box !important;
    }

    /* Üst Arama & Kamera Barı */
    .pos-top-action-bar {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        padding: 0.8rem !important;
        gap: 0.8rem !important;
        margin-bottom: 0.8rem !important;
        width: 100% !important;
        max-width: 100% !important;
        border-radius: 8px !important;
        box-sizing: border-box !important;
    }

    .pos-search-controls {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        display: flex !important;
        flex-direction: column !important; /* Mobilde Arama ve Kamera alt alta */
        gap: 0.5rem !important;
        box-sizing: border-box !important;
    }

    .scan-form-inline {
        width: 100% !important;
        display: flex !important;
        gap: 0.3rem !important;
        box-sizing: border-box !important;
    }

    .scan-form-inline input {
        font-size: 0.92rem !important;
        padding: 0.65rem 0.8rem !important;
        height: 42px !important;
        flex: 1 !important;
        box-sizing: border-box !important;
    }

    #btn-manual-search {
        padding: 0 1rem !important;
        height: 42px !important;
        font-size: 0.85rem !important;
        flex-shrink: 0 !important;
        box-sizing: border-box !important;
    }

    #btn-toggle-camera {
        width: 100% !important;
        height: 42px !important;
        font-size: 0.9rem !important;
        justify-content: center !important;
        display: inline-flex !important;
        align-items: center !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }

    /* Üst Tutar Gösterge Kutuları (Grid ile 2x2 Taşmasız Düzen) */
    .pos-calculator-display {
        display: grid !important;
        grid-template-columns: 1fr 1.5fr 1fr !important; /* Ödenen (küçük), Tutar (büyük), Para Üstü (küçük) yan yana */
        gap: 0.3rem !important;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
    }

    .calc-box {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        padding: 0.4rem 0.2rem !important;
        min-height: 56px !important;
        border-radius: 6px !important;
        box-sizing: border-box !important;
        border-left-width: 3px !important; /* Mobil için kenar çizgi hafif inceltildi */
    }

    .calc-total {
        grid-column: auto !important; /* Yan yana olması için span kaldırıldı */
    }

    .calc-box span {
        font-size: 0.52rem !important;
        margin-bottom: 0.05rem !important;
        text-align: center !important;
    }

    .calc-box p, 
    .calc-box input {
        font-size: 0.95rem !important; /* Ödenen ve Para Üstü rakamlar küçük */
        text-align: center !important;
    }

    .calc-total p {
        font-size: 1.25rem !important; /* Tutar rakamı büyük */
        font-weight: 900 !important;
    }

    /* Çoklu Sepet Tabları (Yatay Kaydırma Kesin Çözüm) */
    .cart-tabs {
        display: flex !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
        flex-wrap: nowrap !important;
        -webkit-overflow-scrolling: touch !important;
        gap: 0.3rem !important;
        padding: 0.4rem !important;
        scrollbar-width: none !important;
        box-sizing: border-box !important;
    }

    .cart-tabs::-webkit-scrollbar {
        display: none !important;
    }

    .cart-tab-btn {
        flex: 0 0 auto !important;
        min-width: 110px !important;
        padding: 0.5rem 0.6rem !important;
        font-size: 0.76rem !important;
        box-sizing: border-box !important;
    }

    /* Sepet Tablosu */
    .scrollable-cart {
        height: 280px !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        box-sizing: border-box !important;
    }

    .pos-table {
        min-width: 440px !important; /* Mobilde büzüşmeyi engeller */
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .pos-table th, 
    .pos-table td {
        padding: 0.5rem 0.4rem !important;
        font-size: 0.8rem !important;
        box-sizing: border-box !important;
    }

    .qty-btn-xs {
        width: 22px !important;
        height: 22px !important;
        font-size: 0.75rem !important;
        box-sizing: border-box !important;
    }

    .cart-qty-ctrl input {
        width: 28px !important;
        padding: 0.1rem 0 !important;
        font-size: 0.75rem !important;
        box-sizing: border-box !important;
    }

    /* Müşteri Seçme Alanı & Saat ve Limit Göstergesi Mobilde Kaldırıldı */
    .customer-picker-row {
        display: none !important;
    }

    .pos-meta-row {
        display: none !important;
    }

    #customer-search-input {
        width: 100% !important;
        font-size: 0.85rem !important;
        padding: 0.55rem 0.8rem !important;
        height: 38px !important;
        box-sizing: border-box !important;
    }

    #btn-select-customer {
        width: 100% !important;
        height: 38px !important;
        font-size: 0.85rem !important;
        padding: 0 !important;
        box-sizing: border-box !important;
    }

    #btn-add-customer-card {
        width: 100% !important;
        height: 38px !important;
        padding: 0 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        box-sizing: border-box !important;
    }

    /* Saat ve Limit */
    .pos-meta-row {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.3rem !important;
        font-size: 0.72rem !important;
        padding-bottom: 0.4rem !important;
        box-sizing: border-box !important;
    }

    /* Hazır Nakit Kısayol Butonları (Tam 3x2 Matris) */
    .quick-cash-row {
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 0.4rem !important;
        width: 100% !important;
        margin-bottom: 0.8rem !important;
        box-sizing: border-box !important;
    }

    .cash-shortcut-btn {
        padding: 0.55rem 0 !important;
        font-size: 0.85rem !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Büyük Ödeme Butonları (Kesin 2x2 Izgara) */
    .payment-methods-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important; /* 2 Sütun */
        gap: 0.5rem !important;
        width: 100% !important;
        margin-top: 0.5rem !important;
        box-sizing: border-box !important;
    }

    .pay-method-btn {
        width: 100% !important;
        min-height: 68px !important;
        padding: 0.7rem 0.2rem !important;
        border-radius: 6px !important;
        box-sizing: border-box !important;
    }

    .pay-method-btn .pay-text strong {
        font-size: 0.8rem !important;
    }

    .pay-method-btn .pay-text span {
        font-size: 0.62rem !important;
    }

    /* Hızlı Satış Ürün Kartları (Ultra Kompakt 2x2 veya 3x3) */
    .quick-items-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important; /* Kesin 2 sütunlu tam genişlik düzeni */
        gap: 0.4rem !important;
        max-height: 220px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .quick-item-btn {
        width: 100% !important;
        min-height: 56px !important;
        padding: 0.45rem 0.2rem !important;
        border-radius: 6px !important;
        box-sizing: border-box !important;
    }

    .quick-item-btn .item-name {
        font-size: 0.72rem !important;
    }

    .quick-item-btn .item-price {
        font-size: 0.82rem !important;
    }

    /* Kamera Scanner */
    .scanner-viewport {
        max-height: 180px !important;
    }

    .pos-main-layout {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }
}

/* Premium "Tüm Satışları Gör" Buton Stili (Emojisiz, Şık ve Minimalist) */
.btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 1.6rem;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 8px;
    text-decoration: none;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.btn-view-all svg {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), stroke 0.2s ease;
    color: var(--text-muted);
}

.btn-view-all:hover {
    background: var(--bg-surface);
    border-color: var(--accent-green);
    color: var(--accent-green);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-view-all:hover svg {
    transform: translateX(3px);
    stroke: var(--accent-green);
}

/* ==========================================================================
   PREMIUM DİNAMİK ASİSTAN VE KONUŞMA BALONU
   ========================================================================== */
.premium-assistant-wrapper {
    position: fixed;
    bottom: 1rem;
    right: -15px; /* Görseli sağ tarafa tamamen yaslıyoruz (şeffaf marjları tolere etmek için) */
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.8rem;
    pointer-events: none;
    /* Alttan yukarı pürüzsüz giriş efekti */
    transform: translateY(300px);
    opacity: 0;
    animation: assistantSlideUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.premium-assistant-wrapper * {
    pointer-events: auto;
}

.assistant-avatar-container {
    width: 220px;
    height: 220px;
    cursor: pointer;
    filter: drop-shadow(-8px 8px 32px rgba(15, 23, 42, 0.15));
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    /* Giriş efekti bittikten sonra havada süzülme animasyonu devreye girer */
    animation: assistantFloat 4s ease-in-out infinite;
    animation-delay: 1s; /* Giriş animasyonu bitince başlasın */
}

.assistant-avatar-container:hover {
    transform: scale(1.04) translateX(-5px); /* Sağa yaslı olduğu için sola ve yukarı doğru hafif tepki verir */
}

.assistant-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.assistant-speech-bubble {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 0.85rem 1.4rem;
    border-radius: 18px;
    box-shadow: var(--shadow-lg);
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--text-primary);
    position: relative;
    max-width: 240px;
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    transform: translateY(10px) scale(0.95);
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    animation: bubblePopIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    animation-delay: 1.5s; /* Giriş animasyonundan hemen sonra açılır */
    margin-right: 40px; /* Sağa aşırı yaslanmasını önlemek için marj bırakıyoruz */
}

.assistant-speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -6px;
    right: 32px;
    width: 10px;
    height: 10px;
    background: #ffffff;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    transform: rotate(45deg);
}

.btn-close-bubble {
    background: transparent;
    border: none;
    font-size: 0.72rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.btn-close-bubble:hover {
    color: var(--color-danger);
}

@keyframes assistantSlideUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes assistantFloat {
    0% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0); }
}

@keyframes bubblePopIn {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 900px) {
    .premium-assistant-wrapper {
        bottom: 0.5rem;
        right: -10px;
    }
    .assistant-avatar-container {
        width: 140px;
        height: 140px;
    }
    .assistant-speech-bubble {
        font-size: 0.85rem;
        padding: 0.7rem 1rem;
        max-width: 170px;
        margin-right: 25px;
    }
    .assistant-speech-bubble::after {
        right: 24px;
    }
}