/* Modern Styles - WWTEC 2024 */

:root {
    /* Color Scheme */
    --primary: #3498db;
    --primary-dark: #2980b9;
    --secondary: #2c3e50;
    --accent: #e74c3c;
    --background: #f8f9fa;
    --text: #2c3e50;
    --text-light: #6c757d;
    --white: #ffffff;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    /* Transitions */
    --transition-fast: 0.3s ease-in-out;
    --transition-normal: 0.5s ease-in-out;
    --transition-slow: 0.8s ease-in-out;
}

/* Modern Header Styles */
.modern-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-fast);
}

.modern-header.sticky {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.98);
}

.modern-nav-link {
    position: relative;
    padding: 0.5rem 1rem;
    color: var(--text);
    transition: var(--transition-fast);
}

.modern-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
    transform: translateX(-50%);
}

.modern-nav-link:hover::after {
    width: 100%;
}

/* Unified Modern Button Styles - Based on Personnel Tahsis Design */
.modern-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.modern-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: 0.6s;
}

.modern-button:hover::before {
    transform: translateX(100%);
}

.modern-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(52, 152, 219, 0.2);
    color: white;
    text-decoration: none;
}

/* Card Styles */
.modern-card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-fast);
    border: 1px solid rgba(0,0,0,0.05);
}

.modern-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Section Styles */
.modern-section {
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.modern-section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Form Styles */
.modern-form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.modern-input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    transition: var(--transition-fast);
    background: var(--white);
}

.modern-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(52,152,219,0.1);
}

.modern-label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    padding: 0 0.5rem;
    color: var(--text-light);
    transition: var(--transition-fast);
    pointer-events: none;
}

.modern-input:focus + .modern-label,
.modern-input:not(:placeholder-shown) + .modern-label {
    top: 0;
    font-size: 0.8rem;
    color: var(--primary);
}

/* Footer Styles */
.modern-footer {
    background: linear-gradient(135deg, var(--secondary), #34495e);
    color: var(--white);
    padding: 4rem 0 2rem;
    position: relative;
}

.modern-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/footer-pattern.svg') center/cover;
    opacity: 0.05;
}

/* Animation Keyframes */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes scaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Utility Classes */
.fade-in {
    animation: fadeIn var(--transition-normal) forwards;
}

.slide-in {
    animation: slideIn var(--transition-normal) forwards;
}

.scale-in {
    animation: scaleIn var(--transition-normal) forwards;
}

/* Dark Mode Styles */
[data-theme="dark"] {
    --background: #1a1f36;
    --text: #ffffff;
    --text-light: #a0aec0;
    --white: #2d3748;
}

/* Responsive Design */
@media (max-width: 768px) {
    .modern-section {
        padding: 3rem 0;
    }
    
    .modern-section-title {
        font-size: 2rem;
    }
}

/* Loading Animation */
.modern-loading {
    width: 40px;
    height: 40px;
    border: 3px solid var(--background);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}