/* Modern ve Okunabilirliği Yüksek Font */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #0ea5e9; /* Insert Dijital'e yakışır modern gökyüzü mavisi */
    --primary-dark: #0284c7;
    --bg-color: #f0f4f8; /* Soğuk ve çok açık mavi/gri arka plan */
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.04);
    --shadow-hover: 0 20px 40px rgba(0,0,0,0.08);
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-color);
    /* Arkada çok hafif, ışıklı bir hissiyat veren radyal geçiş */
    background-image: radial-gradient(circle at 50% 0%, #ffffff 0%, transparent 70%);
    background-attachment: fixed;
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}

/* 1. CAM EFEKTLİ (GLASSMORPHISM) ÜST MENÜ */
.navbar {
    background: rgba(15, 23, 42, 0.85) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.navbar-brand { 
    font-weight: 800; 
    letter-spacing: -0.5px; 
    font-size: 1.5rem; 
    background: linear-gradient(135deg, #fff, #94a3b8); 
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
}
.nav-link { font-weight: 500; opacity: 0.7; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); color: #fff !important; }
.nav-link:hover, .nav-link.active { 
    opacity: 1; 
    color: var(--primary) !important; 
    transform: translateY(-2px); 
    text-shadow: 0 0 10px rgba(14, 165, 233, 0.4); 
}

/* 2. GİRİŞ (LOGIN) EKRANI */
.login-wrapper { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%); }
.login-card { 
    width: 100%; 
    max-width: 420px; 
    padding: 3rem; 
    border-radius: 24px; 
    background: rgba(255, 255, 255, 0.85); 
    backdrop-filter: blur(20px); 
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.15); 
    border: 1px solid rgba(255,255,255,0.6); 
}

/* 3. PREMIUM KARTLAR VE GÖLGELER */
.card, .stat-card {
    border: 1px solid rgba(255,255,255,0.8);
    border-radius: 20px;
    background: var(--card-bg);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.tire-card { position: relative; overflow: hidden; }
.tire-card:hover { 
    transform: translateY(-8px); 
    box-shadow: var(--shadow-hover); 
    border-color: rgba(14, 165, 233, 0.2); 
}

/* Lastik Resim Alanı (Ortası ışıklı özel arka plan) */
.tire-img { 
    height: 220px; 
    object-fit: contain; 
    padding: 25px; 
    background: radial-gradient(circle at center, #ffffff 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e2e8f0; 
    border-top-left-radius: 20px; 
    border-top-right-radius: 20px; 
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1); 
}
.tire-card:hover .tire-img { transform: scale(1.08) rotate(-3deg); }

/* 4. FORM VE BUTON MİKRO-ANİMASYONLARI */
.form-control, .form-select, .input-group-text { 
    border-radius: 12px; 
    border: 1px solid #cbd5e1; 
    padding: 0.75rem 1.2rem; 
    font-weight: 500; 
    color: var(--text-main);
    transition: all 0.3s ease; 
    background-color: #f8fafc; 
}
.form-control:focus, .form-select:focus { 
    background-color: #fff;
    border-color: var(--primary); 
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.15); 
}

.btn { border-radius: 12px; font-weight: 600; padding: 0.6rem 1.5rem; letter-spacing: 0.3px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.btn-primary { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); border: none; color: white; }
.btn-primary:hover { box-shadow: 0 12px 20px -5px rgba(14, 165, 233, 0.4); transform: translateY(-2px); color: white; }

/* 5. STOK KONTROL (HAP / PILL TASARIM) */
.stock-control-wrapper { 
    background: #f1f5f9; 
    border: 1px solid #e2e8f0; 
    border-radius: 50px; 
    padding: 6px; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.03);
}
.stock-control-wrapper .btn { 
    border-radius: 50%; 
    width: 38px; 
    height: 38px; 
    padding: 0; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    background: white; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.05); 
}
.stock-control-wrapper .btn:hover { transform: scale(1.1); }
.stock-input { 
    width: 50px; 
    text-align: center; 
    font-weight: 800; 
    font-size: 1.2rem; 
    border: none !important; 
    background: transparent !important; 
    color: var(--text-main); 
    margin: 0 10px; 
}
.stock-input:focus { box-shadow: none !important; outline: none; }

/* 6. HOVER İLE BELİREN DÜZENLE/SİL BUTONLARI */
.action-buttons { 
    position: absolute; 
    top: 15px; 
    right: 15px; 
    z-index: 10; 
    display: flex; 
    gap: 8px; 
    opacity: 0; /* Normalde gizli */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
    transform: translateY(-10px); 
}
.tire-card:hover .action-buttons { opacity: 1; transform: translateY(0); } /* Üzerine gelince belirir */
.action-buttons .btn { 
    border-radius: 12px; 
    width: 38px; 
    height: 38px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    padding: 0; 
    background: rgba(255,255,255,0.9); 
    backdrop-filter: blur(8px); 
    border: 1px solid rgba(255,255,255,0.5); 
    box-shadow: 0 4px 10px rgba(0,0,0,0.08); 
}
.action-buttons .btn-warning { color: #f59e0b; }
.action-buttons .btn-danger { color: #ef4444; }
.action-buttons .btn:hover { transform: scale(1.15) rotate(5deg); background: white; }

/* 7. DASHBOARD İKONLARI VE TABLOLAR */
.icon-box { 
    width: 65px; 
    height: 65px; 
    border-radius: 18px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 28px; 
    color: white; 
    background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0) 100%); 
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.4); 
}
.table { margin-bottom: 0; }
.table th { border-bottom-width: 1px; color: var(--text-muted); font-weight: 700; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.5px; padding: 1.2rem 1rem; }
.table td { padding: 1.2rem 1rem; vertical-align: middle; border-bottom-color: #f1f5f9; }
.table-hover tbody tr { transition: background-color 0.2s; }
.table-hover tbody tr:hover { background-color: #f8fafc; }

/* 8. BİLDİRİMLER (TOAST) */
#toastContainer { position: fixed; bottom: 30px; right: 30px; z-index: 1055; }
.toast { border-radius: 16px; box-shadow: 0 15px 30px -5px rgba(0,0,0,0.15); border: 1px solid rgba(255,255,255,0.1); padding: 5px; backdrop-filter: blur(10px); }