/* ========================================
   نظام الألوان Gradient الجميل
   Beautiful Gradient Color System
   ======================================== */

/* ===== متغيرات الـ Gradients (ألوان احترافية وأغمق) ===== */
:root {
    /* Gradients الأساسية - Primary Gradients (ألوان رجالية احترافية) */
    --gradient-blue: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    --gradient-blue-dark: linear-gradient(135deg, #0f2027 0%, #203a43 100%);
    --gradient-purple: linear-gradient(135deg, #360033 0%, #0b8793 100%);
    --gradient-navy: linear-gradient(135deg, #000428 0%, #004e92 100%);
    --gradient-orange: linear-gradient(135deg, #d84315 0%, #e65100 100%);
    --gradient-green: linear-gradient(135deg, #134e5e 0%, #71b280 100%);
    --gradient-green-dark: linear-gradient(135deg, #1a4314 0%, #2d5016 100%);
    --gradient-teal: linear-gradient(135deg, #004e92 0%, #2a5298 100%);
    --gradient-indigo: linear-gradient(135deg, #3949ab 0%, #5e35b1 100%);
    --gradient-red: linear-gradient(135deg, #b71c1c 0%, #d32f2f 100%);
    --gradient-red-dark: linear-gradient(135deg, #7f0000 0%, #b71c1c 100%);
    --gradient-yellow: linear-gradient(135deg, #f57f17 0%, #f9a825 100%);
    --gradient-dark: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    --gradient-dark-blue: linear-gradient(135deg, #141e30 0%, #243b55 100%);
    --gradient-ocean: linear-gradient(135deg, #005c97 0%, #363795 100%);
    --gradient-steel: linear-gradient(135deg, #334d50 0%, #cbcaa5 100%);
    --gradient-charcoal: linear-gradient(135deg, #1f2937 0%, #4b5563 100%);
    
    /* Gradients للحالات - Status Gradients (أغمق وأوضح) */
    --gradient-success: linear-gradient(135deg, #1b5e20 0%, #2e7d32 100%);
    --gradient-danger: linear-gradient(135deg, #b71c1c 0%, #c62828 100%);
    --gradient-warning: linear-gradient(135deg, #e65100 0%, #f57c00 100%);
    --gradient-info: linear-gradient(135deg, #01579b 0%, #0277bd 100%);
    
    /* ظلال ملونة - Colored Shadows (أغمق) */
    --shadow-blue: 0 10px 30px rgba(30, 60, 114, 0.4);
    --shadow-dark: 0 10px 30px rgba(44, 62, 80, 0.4);
    --shadow-green: 0 10px 30px rgba(27, 94, 32, 0.4);
    --shadow-orange: 0 10px 30px rgba(216, 67, 21, 0.4);
    --shadow-red: 0 10px 30px rgba(183, 28, 28, 0.4);
}

/* ===== الأزرار بألوان Gradient ===== */
.btn {
    position: relative;
    overflow: hidden;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(-1px);
}

/* أزرار Primary بألوان gradient احترافية وأغمق */
.btn-primary {
    background: var(--gradient-blue);
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2a5298 0%, #3a65b8 100%);
    box-shadow: 0 15px 35px rgba(30, 60, 114, 0.5);
}

.btn-success {
    background: var(--gradient-success);
    box-shadow: var(--shadow-green);
}

.btn-success:hover {
    background: linear-gradient(135deg, #2e7d32 0%, #388e3c 100%);
    box-shadow: 0 15px 35px rgba(27, 94, 32, 0.5);
}

.btn-danger {
    background: var(--gradient-danger);
    box-shadow: var(--shadow-red);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c62828 0%, #d32f2f 100%);
    box-shadow: 0 15px 35px rgba(183, 28, 28, 0.5);
}

.btn-warning {
    background: var(--gradient-warning);
    box-shadow: var(--shadow-orange);
}

.btn-warning:hover {
    background: linear-gradient(135deg, #f57c00 0%, #ff8f00 100%);
    box-shadow: 0 15px 35px rgba(216, 67, 21, 0.5);
}

.btn-info {
    background: var(--gradient-info);
    box-shadow: var(--shadow-blue);
}

.btn-info:hover {
    background: linear-gradient(135deg, #0277bd 0%, #0288d1 100%);
    box-shadow: 0 15px 35px rgba(1, 87, 155, 0.5);
}

.btn-secondary {
    background: var(--gradient-dark);
    box-shadow: var(--shadow-dark);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #34495e 0%, #2c3e50 100%);
    box-shadow: 0 15px 35px rgba(44, 62, 80, 0.5);
}

/* أزرار Outline بألوان gradient */
.btn-outline-primary {
    background: transparent;
    border: 2px solid #2a5298;
    color: #2a5298;
    position: relative;
    overflow: hidden;
}

.btn-outline-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-blue);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.btn-outline-primary:hover {
    color: white;
    border-color: transparent;
}

.btn-outline-primary:hover::after {
    opacity: 1;
}

/* ===== البطاقات بألوان Gradient ===== */
.card {
    border: none;
    border-radius: 1.25rem;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    background: var(--bg-primary, white);
    color: var(--text-primary, #0f172a);
}

.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-blue);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover::before {
    opacity: 1;
}

/* بطاقات ملونة بـ gradient */
.card-gradient-blue {
    background: var(--gradient-blue);
    color: white !important;
}

.card-gradient-blue *,
.card-gradient-blue .card-header,
.card-gradient-blue .card-title {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-gradient-dark {
    background: var(--gradient-dark);
    color: white !important;
}

.card-gradient-dark * {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-gradient-green {
    background: var(--gradient-success);
    color: white !important;
}

.card-gradient-green * {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-gradient-orange {
    background: var(--gradient-orange);
    color: white !important;
}

.card-gradient-orange * {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-gradient-navy {
    background: var(--gradient-navy);
    color: white !important;
}

.card-gradient-navy * {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* بطاقات الإحصائيات - Stats Cards */
.stats-card {
    background: var(--gradient-blue);
    color: white;
    padding: 1.75rem;
    border-radius: 1.25rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 0;
}

.stats-card:hover::before {
    opacity: 1;
}

.stats-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.stats-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 1;
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0.5rem 0;
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.stats-card div:last-child {
    font-size: 1rem;
    opacity: 1;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.stats-card .card-body {
    position: relative;
    z-index: 2;
}

.stats-card .btn {
    position: relative;
    z-index: 10;
    pointer-events: auto;
}

/* بطاقات الإحصائيات بألوان مختلفة */
.stats-primary {
    background: var(--gradient-blue);
}

.stats-success {
    background: var(--gradient-success);
}

.stats-danger {
    background: var(--gradient-danger);
}

.stats-warning {
    background: var(--gradient-warning);
}

.stats-info {
    background: var(--gradient-info);
}

.stats-secondary {
    background: var(--gradient-dark);
}

.stats-dark {
    background: var(--gradient-charcoal);
}

/* بطاقات لوحة التحكم بألوان gradient احترافية */
.card-primary {
    background: var(--gradient-blue) !important;
    color: white !important;
}

.card-primary *,
.card-primary .card-header,
.card-primary .card-title,
.card-primary .card-subtitle {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-success {
    background: var(--gradient-success) !important;
    color: white !important;
}

.card-success *,
.card-success .card-header,
.card-success .card-title,
.card-success .card-subtitle {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-danger {
    background: var(--gradient-danger) !important;
    color: white !important;
}

.card-danger *,
.card-danger .card-header,
.card-danger .card-title,
.card-danger .card-subtitle {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-warning {
    background: var(--gradient-warning) !important;
    color: white !important;
}

.card-warning *,
.card-warning .card-header,
.card-warning .card-title,
.card-warning .card-subtitle {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.card-info {
    background: var(--gradient-info) !important;
    color: white !important;
}

.card-info *,
.card-info .card-header,
.card-info .card-title,
.card-info .card-subtitle {
    color: white !important;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* ===== النافبار بألوان Gradient (أغمق وأحترافية) ===== */
.navbar {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%) !important;
    box-shadow: 0 4px 20px rgba(30, 60, 114, 0.4);
    border: none;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 10px rgba(255, 255, 255, 0.3);
}

.top-row {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%) !important;
    box-shadow: 0 4px 20px rgba(30, 60, 114, 0.4);
}

/* روابط النافبار */
.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.15);
    transition: left 0.3s ease;
}

.nav-link:hover::before,
.nav-link.active::before {
    left: 0;
}

.nav-link:hover {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateX(-3px);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: white !important;
}

/* ===== الجداول بألوان Gradient ===== */
.table {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: none;
}

.table thead {
    background: var(--gradient-blue);
}

.table thead th {
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    padding: 1.25rem 1rem;
    border: none;
    position: relative;
}

.table thead th::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
}

.table tbody tr {
    transition: all 0.2s ease;
    background: white;
}

.table tbody tr:nth-child(even) {
    background: rgba(79, 172, 254, 0.03);
}

.table tbody tr:hover {
    background: linear-gradient(90deg, rgba(79, 172, 254, 0.1) 0%, rgba(0, 242, 254, 0.1) 100%);
    transform: scale(1.01);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* جداول مخططة بألوان gradient */
.table-striped tbody tr:nth-of-type(odd) {
    background: linear-gradient(90deg, rgba(79, 172, 254, 0.05) 0%, rgba(0, 242, 254, 0.05) 100%);
}

/* ===== Badges بألوان Gradient ===== */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.badge.bg-primary {
    background: var(--gradient-blue) !important;
}

.badge.bg-success {
    background: var(--gradient-success) !important;
}

.badge.bg-danger {
    background: var(--gradient-danger) !important;
}

.badge.bg-warning {
    background: var(--gradient-warning) !important;
    color: #333 !important;
}

.badge.bg-info {
    background: var(--gradient-info) !important;
}

.badge.bg-secondary {
    background: var(--gradient-dark) !important;
}

/* ===== Alerts بألوان Gradient ===== */
.alert {
    border-radius: 1rem;
    border: none;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.alert::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
}

.alert-primary {
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.15) 0%, rgba(0, 242, 254, 0.15) 100%);
    color: #0066cc;
}

.alert-primary::before {
    background: var(--gradient-blue);
}

.alert-success {
    background: linear-gradient(135deg, rgba(67, 233, 123, 0.15) 0%, rgba(17, 153, 142, 0.15) 100%);
    color: #0d6832;
}

.alert-success::before {
    background: var(--gradient-success);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.15) 0%, rgba(238, 90, 111, 0.15) 100%);
    color: #991b1b;
}

.alert-danger::before {
    background: var(--gradient-danger);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(246, 211, 101, 0.15) 0%, rgba(253, 160, 133, 0.15) 100%);
    color: #854d0e;
}

.alert-warning::before {
    background: var(--gradient-warning);
}

.alert-info {
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.15) 0%, rgba(0, 242, 254, 0.15) 100%);
    color: #0c4a6e;
}

.alert-info::before {
    background: var(--gradient-info);
}

/* ===== النماذج بتأثيرات Gradient ===== */
.form-control:focus {
    border-color: #4facfe;
    box-shadow: 0 0 0 0.25rem rgba(79, 172, 254, 0.25);
    background: linear-gradient(to bottom, white 0%, rgba(79, 172, 254, 0.02) 100%);
}

.form-control {
    border-radius: 0.75rem;
    border: 2px solid #e5e7eb;
    padding: 0.875rem 1rem;
    transition: all 0.3s ease;
}

.form-control:hover {
    border-color: #cbd5e1;
}

/* ===== المودال بألوان Gradient ===== */
.modal-content {
    border-radius: 1.5rem;
    border: none;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}

.modal-header {
    background: var(--gradient-blue);
    color: white;
    border: none;
    padding: 1.75rem 2rem;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.modal-header .btn-close:hover {
    opacity: 1;
}

/* ===== Progress Bars بألوان Gradient ===== */
.progress {
    height: 1rem;
    border-radius: 1rem;
    background: rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.progress-bar {
    background: var(--gradient-blue);
    transition: width 0.6s ease;
}

.progress-bar-success {
    background: var(--gradient-success);
}

.progress-bar-danger {
    background: var(--gradient-danger);
}

.progress-bar-warning {
    background: var(--gradient-warning);
}

/* ===== تأثيرات إضافية ===== */
.hover-lift {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.gradient-text {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.gradient-border {
    border: 3px solid transparent;
    background-image: linear-gradient(white, white), var(--gradient-blue);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    border-radius: 1rem;
}

/* ===== Animations ===== */
@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-animated {
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .stats-card {
        padding: 1.25rem;
    }
    
    .stats-number {
        font-size: 2rem;
    }
    
    .card:hover {
        transform: translateY(-4px);
    }
}