/* Civil Project Management Landing Page Theme */
/* Design Tokens & Variables */

:root {
    --primary: #1e3a8a;
    --primary-dark: #172554;
    --secondary: #0369a1;
    --secondary-dark: #025a8c;
    --accent: #ea580c;
    --accent-light: #f97316;
    --success: #16a34a;
    --success-light: #22c55e;
    --warning: #ca8a04;
    --danger: #dc2626;
    --light: #f8fafc;
    --lighter: #f1f5f9;
    --dark: #0f172a;
    --border: #cbd5e1;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--dark);
}

p {
    color: var(--text-secondary);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary);
}

/* Navigation */
.navbar {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

/* Hero Section */
.hero-section {
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: -100px;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

/* Buttons */
.btn {
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-light:hover {
    background: var(--light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light {
    border: 2px solid white;
    color: white;
}

.btn-outline-light:hover {
    background: white;
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--primary);
    border: none;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--secondary);
    border: none;
}

.btn-secondary:hover {
    background: var(--secondary-dark);
}

/* Cards */
.card {
    border-radius: var(--radius-lg);
    border: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: transparent;
    border: none;
}

.card-body {
    padding: 1.5rem;
}

/* Badges */
.badge {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
}

/* Sections */
section {
    position: relative;
}

section h2 {
    margin-bottom: 2rem;
    font-size: 2.2rem;
    color: var(--primary);
}

/* Alerts */
.alert {
    border-radius: var(--radius-lg);
    border: none;
    padding: 1.25rem;
}

.alert-warning {
    background: #fef3c7;
    color: #78350f;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--secondary);
}

/* Forms */
.form-control {
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.form-label {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Modal */
.modal-content {
    border-radius: var(--radius-lg);
    border: none;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--lighter);
}

.modal-body {
    padding: 1.5rem;
}

/* Responsive Typography */
@media (max-width: 768px) {
    h1 {
        font-size: 1.75rem !important;
    }
    
    h2 {
        font-size: 1.5rem !important;
    }
    
    section h2 {
        font-size: 1.5rem !important;
    }
    
    .hero-section {
        min-height: 450px;
    }
}

/* Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.card {
    animation: slideUp 0.6s ease-out;
}

/* Print Styles */
@media print {
    .navbar, .modal, #toast, #scrollProgress {
        display: none !important;
    }
    
    body {
        background: white;
    }
}

/* Utility Classes */
.text-primary {
    color: var(--primary) !important;
}

.text-secondary {
    color: var(--secondary) !important;
}

.text-accent {
    color: var(--accent) !important;
}

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

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

.bg-accent {
    background: var(--accent) !important;
}

.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow-md {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}

.rounded-sm {
    border-radius: var(--radius-sm) !important;
}

.rounded-md {
    border-radius: var(--radius-md) !important;
}

.rounded-lg {
    border-radius: var(--radius-lg) !important;
}

.rounded-3 {
    border-radius: 12px !important;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}