/* Theme System - Dark and Light Mode with Vibrant Colors */

/* CSS Variables for Themes */
:root {
    /* Dark Theme (Default) */
    --primary-color: #00D4FF;
    --secondary-color: #FF6B35;
    --accent-color: #7B68EE;
    --success-color: #00E676;
    --warning-color: #FFD54F;
    --error-color: #FF5252;
    
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #2D2D2D;
    --bg-card: #1E1E1E;
    
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --text-muted: #808080;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.5);
    --glow-color: rgba(0, 212, 255, 0.3);
}

/* Light Theme */
[data-theme="light"] {
    --primary-color: #2196F3;
    --secondary-color: #FF5722;
    --accent-color: #9C27B0;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --error-color: #F44336;
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-tertiary: #E9ECEF;
    --bg-card: #FFFFFF;
    
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6C757D;
    
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --glow-color: rgba(33, 150, 243, 0.3);
}

/* Base Styles */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 80px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    background: var(--bg-card);
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    z-index: 1001;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--glow-color);
}

/* Language Toggle Button */
.language-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--secondary-color);
    background: var(--bg-card);
    color: var(--secondary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    z-index: 1001;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-color);
    flex-direction: column;
    gap: 2px;
}

.language-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
}

.language-toggle i {
    font-size: 0.8rem;
}

.lang-text {
    font-size: 0.7rem;
    font-weight: bold;
}

/* Floating Tech Elements */
.floating-tech-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.floating-tech-icon {
    position: absolute;
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.1;
    animation: floatTech 15s infinite linear;
}

.floating-tech-icon:nth-child(odd) {
    color: var(--secondary-color);
}

.floating-tech-icon:nth-child(3n) {
    color: var(--accent-color);
}

@keyframes floatTech {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.1;
    }
    90% {
        opacity: 0.1;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

/* Code Animation */
.code-animation-container {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    z-index: 1;
    display: none; /* مخفي افتراضياً */
}

.code-window {
    background: var(--bg-card);
    border-radius: 10px;
    box-shadow: 0 10px 30px var(--shadow-color);
    border: 1px solid var(--border-color);
    width: 400px;
    max-height: 300px;
    overflow: hidden;
}

.code-header {
    background: var(--bg-tertiary);
    padding: 10px 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.code-buttons {
    display: flex;
    gap: 8px;
}

.code-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-btn.red { background: #FF5F57; }
.code-btn.yellow { background: #FFBD2E; }
.code-btn.green { background: #28CA42; }

.code-title {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: 'Courier New', monospace;
}

.code-content {
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
}

.code-line {
    display: flex;
    align-items: flex-start;
}

.line-number {
    color: var(--text-muted);
    margin-right: 15px;
    user-select: none;
    min-width: 20px;
}

.code-text {
    color: var(--primary-color);
    white-space: pre-wrap;
}

.cursor {
    color: var(--primary-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Particle System */
.particle-system {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: particleFloat 10s infinite linear;
    opacity: 0.3;
}

.particle:nth-child(2n) {
    background: var(--secondary-color);
}

.particle:nth-child(3n) {
    background: var(--accent-color);
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100px) translateX(100px);
        opacity: 0;
    }
}

/* Enhanced Navigation */
.navbar {
    background: rgba(var(--bg-primary), 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-logo h2 {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: var(--text-primary) !important;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--glow-color), transparent);
    transition: left 0.5s;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    text-shadow: 0 0 10px var(--glow-color);
}

/* Enhanced Buttons */
.btn {
    position: relative;
    overflow: hidden;
    border: none;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow-color);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

/* Enhanced Cards */
.service-card, .project-card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: 0 10px 30px var(--shadow-color) !important;
    position: relative;
    overflow: hidden;
}

.service-card::before, .project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color)) !important;
}

.service-card:hover, .project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--glow-color) !important;
}

/* Enhanced Text Colors */
.section-header h2 {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-card h3, .project-card h3 {
    color: var(--primary-color) !important;
}

.service-card p, .project-card p {
    color: var(--text-secondary) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .theme-toggle, .language-toggle {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .theme-toggle {
        right: 70px;
    }
    
    .code-animation-container {
        display: none;
    }
    
    .floating-tech-icon {
        font-size: 1.5rem;
    }
}

/* Loading Animation */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-text {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
}

/* Hide loader when page is loaded */
.loaded .page-loader {
    opacity: 0;
    pointer-events: none;
}