/* ========================================================================
    1. الهوية البصرية المتقدمة (Ultra Premium Palette)
   ======================================================================== */
:root {
    /* الألوان الأساسية */
    --color-primary: #0a0a0a;
    --color-accent: #d4af37; /* ذهبي ملكي */
    --color-accent-hover: #b5952f;
    --color-bg: #f3f4f6;
    
    /* تأثيرات الزجاج (Glassmorphism) */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
    
    /* تأثيرات التوهج (Glow) */
    --glow-accent: rgba(212, 175, 55, 0.3);
    
    /* النصوص */
    --color-text-main: #111827;
    --color-text-muted: #6b7280;
}

/* الوضع الليلي العميق (Deep Dark Mode) */
.dark {
    --color-primary: #ffffff;
    --color-accent: #e5c158; /* ذهبي مشرق أكثر للتباين */
    --color-accent-hover: #fcd34d;
    --color-bg: #050505;
    
    /* زجاج داكن فخم */
    --glass-bg: rgba(15, 15, 15, 0.65);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.8);
    
    /* توهج ليلي */
    --glow-accent: rgba(229, 193, 88, 0.15);
    
    --color-text-main: #f9fafb;
    --color-text-muted: #9ca3af;
}

/* ========================================================================
    2. التنسيقات الأساسية والخلفية
   ======================================================================== */
* {
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: 'Cairo', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    /* خلفية متدرجة خفيفة جداً تتبع الوضع */
    background-image: radial-gradient(circle at 50% 0%, var(--glow-accent) 0%, transparent 70%);
    background-attachment: fixed;
    transition: background-color 0.6s cubic-bezier(0.4, 0, 0.2, 1), color 0.6s ease;
}

/* ========================================================================
    3. تأثيرات الزجاج (Advanced Glassmorphism)
   ======================================================================== */
.glass-nav {
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: all 0.5s ease;
}

.hidden-view {
    display: none !important;
}

/* ========================================================================
    4. البطاقات والحركات ثلاثية الأبعاد (3D Interactive Cards)
   ======================================================================== */
.portfolio-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    overflow: hidden;
    position: relative;
    box-shadow: var(--glass-shadow);
    transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    transform-style: preserve-3d;
}

/* تأثير الإضاءة عند التمرير */
.portfolio-card::before {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.1), transparent);
    transform: skewX(-20deg);
    transition: left 0.7s ease;
    z-index: 10;
    pointer-events: none;
}

.portfolio-card:hover::before {
    left: 150%;
}

.portfolio-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 30px 60px -10px var(--glow-accent), 0 10px 30px -10px rgba(0,0,0,0.2);
    border-color: var(--color-accent);
}

.portfolio-card img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.portfolio-card:hover img {
    transform: scale(1.1) rotate(1deg);
}

/* ========================================================================
    5. المدخلات والحقول (Modern Inputs & Forms)
   ======================================================================== */
input, select, textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.03) !important;
    border: 2px solid var(--glass-border) !important;
    color: var(--color-text-main) !important;
    padding: 1rem 1.5rem !important;
    border-radius: 1.25rem !important;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    outline: none;
}

.dark input, .dark select, .dark textarea {
    background: rgba(0, 0, 0, 0.2) !important;
}

input:focus, textarea:focus {
    border-color: var(--color-accent) !important;
    background: var(--color-bg) !important;
    box-shadow: 0 0 0 4px var(--glow-accent) !important;
    transform: translateY(-2px);
}

/* ========================================================================
    6. أزرار لوحة الإدارة (Creative Admin Tabs)
   ======================================================================== */
.admin-tab-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 1.25rem 1.5rem;
    border-radius: 1.25rem;
    color: var(--color-text-muted);
    font-weight: 700;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

/* حركة الخط الجانبي عند الهوفر */
.admin-tab-btn::after {
    content: '';
    position: absolute;
    right: 0; top: 50%;
    transform: translateY(-50%);
    height: 0%;
    width: 4px;
    background: var(--color-accent);
    border-radius: 4px;
    transition: height 0.3s ease;
}

.admin-tab-btn:hover {
    color: var(--color-accent);
    background: var(--glow-accent);
    transform: translateX(-5px);
}

.admin-tab-btn:hover::after {
    height: 60%;
}

.admin-tab-btn.active {
    background: var(--color-primary) !important;
    color: var(--color-bg) !important;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transform: translateX(-8px);
}

.dark .admin-tab-btn.active {
    background: var(--color-accent) !important;
    color: #000000 !important;
    box-shadow: 0 10px 25px var(--glow-accent);
}

.admin-tab-btn.active::after {
    height: 80%;
    background: var(--color-bg);
}

.dark .admin-tab-btn.active::after {
    background: #000000;
}

/* ========================================================================
    7. الحركات الجمالية (Keyframe Animations)
   ======================================================================== */
/* زوم سينمائي بطيء للصورة الخلفية */
@keyframes slowZoom {
    0% { transform: scale(1.05) translateZ(0); filter: brightness(0.4); }
    50% { transform: scale(1.15) translateZ(0); filter: brightness(0.5); }
    100% { transform: scale(1.05) translateZ(0); filter: brightness(0.4); }
}

.animate-slow-zoom {
    animation: slowZoom 30s infinite alternate ease-in-out;
    will-change: transform, filter;
}

/* نبض احترافي لحالة النظام (LED Effect) */
.status-pulse {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
    animation: ledPulse 2s infinite cubic-bezier(0.66, 0, 0, 1);
}

@keyframes ledPulse {
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); transform: scale(0.95); }
    70% { box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); transform: scale(1); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); transform: scale(0.95); }
}

/* حركة الظهور للأعلى */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

/* ========================================================================
    8. الأيقونات والتفاصيل (Typography & Icons)
   ======================================================================== */
/* نصوص متدرجة فخمة (Gradient Text) للمسميات المهمة */
.text-gradient {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* الأيقونات */
.lucide, .fab, .fas {
    color: inherit;
    display: inline-block;
    vertical-align: middle;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

button:hover .lucide {
    transform: scale(1.15) rotate(-5deg);
}

/* ========================================================================
    9. شريط التمرير (Modern Scrollbar)
   ======================================================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-text-muted);
    border-radius: 20px;
    border: 2px solid var(--color-bg);
    transition: background 0.3s ease;
}

.dark ::-webkit-scrollbar-thumb {
    background: var(--color-accent);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-hover);
}