/* rezaafrasyabi.me Theme */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --dark-bg: #0f172a;
    --dark-surface: #1e293b;
    --light-bg: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #cbd5e1;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
}

.heading {
    margin: 0;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-surface) 100%);
    color: white;
    box-shadow: var(--shadow-lg);
    border-bottom: 3px solid var(--primary-color);
}

.heading h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.heading .room-info {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.heading .room-info h3,
.heading .room-info h5 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.heading-mark {
    color: var(--primary-light);
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 4px;
    border: 1px solid rgba(37, 99, 235, 0.3);
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
}

.form {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form-control {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
}

.text-center h4 {
    color: white;
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.text-center p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.brand-logo {
    display: inline-block;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

.brand-subtitle {
    font-size: 0.9rem;
    color: var(--text-light);
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    .heading {
        padding: 1rem;
    }
    
    .heading h1 {
        font-size: 1.5rem;
    }
    
    .container {
        padding: 1rem;
    }
    
    .form {
        padding: 1.5rem;
    }
}