/* PDFSignerPro Core Styles - Phase 1 */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    
    --border-radius: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
}

.min-vh-75 {
    min-height: 75vh;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.1;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

/* Module Cards */
.module-card {
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.125);
}

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

.module-icon {
    transition: all 0.3s ease;
}

.module-card:hover .module-icon {
    transform: scale(1.1);
}

/* Feature Icons */
.feature-icon {
    transition: all 0.3s ease;
}

.feature-icon:hover {
    transform: scale(1.1);
}

/* Dashboard Styles */
.dashboard-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
}

.stat-item {
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-2px);
}

.stat-icon {
    transition: all 0.3s ease;
}

.stat-item:hover .stat-icon {
    transform: scale(1.1);
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    transform: translateY(-1px);
}

/* Buttons */
.btn {
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

/* Cards */
.card {
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 0, 0, 0.125);
}

.card-body {
    padding: 1.5rem;
}

/* Modals */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--box-shadow-lg);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.125);
    padding: 1.5rem;
}

/* Forms */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #ced4da;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

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

/* Badges */
.badge {
    font-weight: 500;
    border-radius: var(--border-radius);
}

/* Progress */
.progress {
    border-radius: var(--border-radius);
    background-color: rgba(0, 0, 0, 0.1);
}

.progress-bar {
    border-radius: var(--border-radius);
}

/* Footer */
footer {
    margin-top: auto;
}

/* Utilities */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Loading States */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .module-card {
        margin-bottom: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.625rem 1.25rem;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 2rem 0;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .modal-dialog {
        margin: 1rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-up {
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Error Page */
.error-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
}

/* Module Placeholder */
.module-placeholder {
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.timeline-item {
    text-align: center;
}

.timeline-icon {
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-icon {
    transform: scale(1.1);
}

/* Print Styles */
@media print {
    .navbar,
    .modal,
    footer {
        display: none !important;
    }
    
    .container {
        max-width: none !important;
    }
}