/* SieveCalc.Pro Custom Styles */

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --muted-color: #6b7280;
    --border-color: #e5e7eb;
    --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);
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;
}

/* Global Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

.display-4, .display-5 {
    font-weight: 700;
    letter-spacing: -0.025em;
}

/* Navigation - Updated with standardized colors */
.navbar {
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

/* Standardized navbar styling */
.navbar.navbar-dark {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
    color: white !important;
}

.navbar.navbar-dark .navbar-brand,
.navbar.navbar-dark .navbar-nav .nav-link,
.navbar.navbar-dark .navbar-toggler {
    color: white !important;
}

.navbar.navbar-dark .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.navbar.navbar-dark .navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Language dropdown in dark navbar */
.navbar.navbar-dark .dropdown-toggle {
    color: white !important;
}

.navbar.navbar-dark .dropdown-toggle:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

.navbar.navbar-dark .dropdown-menu {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.navbar-dark .dropdown-menu .dropdown-item {
    color: white !important;
}

.navbar.navbar-dark .dropdown-menu .dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Calculator pages navbar */
.navbar.navbar-light {
    background-color: white !important;
    border-bottom: 1px solid var(--border-color);
}

.navbar.navbar-light .navbar-brand {
    color: var(--primary-color) !important;
}

.navbar.navbar-light .navbar-nav .nav-link {
    color: var(--dark-color) !important;
}

.navbar.navbar-light .navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

.navbar.navbar-light .navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
    font-weight: 600;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

/* Footer - Enhanced Styling */
footer {
    background: var(--dark-color) !important;
    padding: 3rem 0 2rem !important;
}

footer h5 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

footer h6 {
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

footer p {
    color: var(--muted-color);
    margin-bottom: 1.5rem;
}

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

footer .list-unstyled li {
    margin-bottom: 0.5rem;
}

footer a.text-muted {
    text-decoration: none;
    transition: var(--transition);
}

footer a.text-muted:hover {
    color: var(--accent-color) !important;
    text-decoration: none;
}

footer hr {
    border-color: rgba(255, 255, 255, 0.1);
}

/* Tool Cards */
.tool-card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
}

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

.tool-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Forms */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding-top: 100px;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
}

/* Granulometry Table Styles */
.granulometry-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background: white;
    box-shadow: var(--shadow-sm);
}

.granulometry-table th,
.granulometry-table td {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    text-align: center;
}

.granulometry-table th {
    background: #f8f9fa;
    font-weight: 600;
    white-space: nowrap;
}

.granulometry-table tr:hover {
    background-color: rgba(37, 99, 235, 0.05);
}

/* Distribution Chart Styles */
.distribution-chart-container {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin: 1rem 0;
    box-shadow: var(--shadow-sm);
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}
