/*
Theme Name: Bootstrap 5 WordPress Theme
Description: A modern WordPress theme built with Bootstrap 5 featuring responsive navigation, slider, services, portfolio, and footer sections.
Version: 1.0.0
Author: Your Name
Text Domain: bootstrap5-theme
*/

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,300;1,400;1,500;1,600;1,700;1,800&display=swap');

/* Import Bootstrap 5 CSS */
@import url('https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css');
@import url('https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.1/font/bootstrap-icons.css');

/* Custom Styles - Rosetti RR Brand Colors */
:root {
    --primary-color: #B9A270;
    --secondary-color: #5D625A;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #5D625A;
    --brand-gold: #B9A270;
    --brand-dark-green: #5D625A;
    --brand-black: #000000;
    --font-primary: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.18);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    line-height: 1.7;
    color: #333;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    color: var(--brand-dark-green);
    margin-bottom: 1rem;
}

.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

.lead {
    font-weight: 400;
    font-size: 1.25rem;
    line-height: 1.6;
}

/* Header Styles */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    transition: var(--transition);
}

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

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.75rem 1.25rem;
    transition: var(--transition);
    color: var(--brand-dark-green) !important;
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--brand-gold) !important;
    transform: translateY(-1px);
}

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

.navbar-nav .nav-link:hover::after {
    width: 80%;
}

/* Logo Styles */
.navbar-brand img {
    max-height: 60px;
    width: auto;
    transition: var(--transition);
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.navbar-brand img:hover {
    transform: scale(1.05);
}

.navbar-brand {
    display: flex;
    align-items: center;
}

/* Responsive logo sizing */
@media (max-width: 768px) {
    .navbar-brand img {
        max-height: 45px;
    }
}

@media (max-width: 576px) {
    .navbar-brand img {
        max-height: 40px;
    }
}

/* Slider Styles */
.hero-slider {
    height: 80vh;
    background: linear-gradient(135deg, var(--brand-dark-green) 0%, var(--brand-black) 100%);
    position: relative;
    overflow: hidden;
}

.hero-slider .carousel-item img {
    width: 100%;
    height: 80vh;
    object-fit: cover;
    object-position: center;
}

.hero-slider .carousel-caption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.6);
    border-radius: 15px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 800px;
    width: 90%;
    z-index: 10;
}

.hero-slider::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="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.carousel-item {
    height: 80vh;
    position: relative;
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.4);
    border-radius: var(--border-radius);
    padding: 3rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-xl);
}

.carousel-caption h1 {
    color: white;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.carousel-caption .lead {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.carousel-control-prev,
.carousel-control-next {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.carousel-indicators [data-bs-target] {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    transition: var(--transition);
}

.carousel-indicators .active {
    background: var(--brand-gold);
    transform: scale(1.2);
}

/* Services Section */
.services-section {
    padding: 6rem 0;
    background: transparent;
    position: relative;
}

.services-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="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(93,98,90,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    pointer-events: none;
}

.service-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-gold), var(--brand-dark-green));
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(185, 162, 112, 0.2);
}

.service-icon {
    font-size: 3.5rem;
    color: var(--brand-gold);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
    color: var(--brand-dark-green);
}

.service-card h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--brand-dark-green);
}

.service-card p {
    color: #666;
    line-height: 1.6;
}

/* Portfolio Section */
.portfolio-section {
    padding: 6rem 0;
    background: white;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.portfolio-item img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(185, 162, 112, 0.55), rgba(93, 98, 90, 0.55));
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.portfolio-overlay p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

/* Actions Section */
.actions-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--brand-dark-green) 0%, var(--brand-black) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.actions-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="stars" width="50" height="50" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23stars)"/></svg>');
    pointer-events: none;
}

.action-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.action-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(185, 162, 112, 0.1), transparent);
    opacity: 0;
    transition: var(--transition);
}

.action-card:hover::before {
    opacity: 1;
}

.action-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(185, 162, 112, 0.3);
}

.action-card i {
    font-size: 3rem;
    color: var(--brand-gold);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.action-card:hover i {
    transform: scale(1.1);
}

.action-card h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.action-card p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.action-card .btn {
    background: var(--brand-gold);
    border: none;
    color: var(--brand-dark-green);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 10px;
    transition: var(--transition);
}

.action-card .btn:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background: transparent;
}

.about-section img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.about-section img:hover {
    transform: scale(1.02);
}

/* Contact Section */
.contact-section {
    padding: 6rem 0;
    background: white;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.form-control:focus {
    border-color: var(--brand-gold);
    box-shadow: 0 0 0 0.2rem rgba(185, 162, 112, 0.25);
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-gold), var(--brand-dark-green));
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 10px;
    font-weight: 600;
    transition: var(--transition);
}

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

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 10px;
    font-weight: 600;
    transition: var(--transition);
}

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

/* Footer */
.footer {
    background: var(--brand-black);
    color: white;
    padding: 4rem 0 2rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--brand-gold), transparent);
}

.footer h5 {
    color: var(--brand-gold);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.footer a:hover {
    color: var(--brand-gold);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 3rem;
    padding-top: 2rem;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    margin-right: 0.5rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--brand-gold);
    color: var(--brand-dark-green);
    transform: translateY(-2px);
}

/* Back to Top Button */
#backToTop {
    background: var(--brand-gold);
    color: var(--brand-dark-green);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

#backToTop:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-slider {
        height: 60vh;
    }
    
    .carousel-item {
        height: 60vh;
    }
    
    .carousel-caption {
        padding: 2rem;
    }
    
    .services-section,
    .portfolio-section,
    .actions-section,
    .about-section,
    .contact-section {
        padding: 4rem 0;
    }
    
    .service-card,
    .action-card {
        margin-bottom: 2rem;
    }
}

@media (max-width: 576px) {
    .carousel-caption {
        padding: 1.5rem;
    }
    
    .carousel-caption h1 {
        font-size: 2rem;
    }
    
    .carousel-caption .lead {
        font-size: 1rem;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--brand-dark-green);
}

/* Construction Calculator Styles */
.construction-calculator {
    padding: 2rem 0;
    background: transparent;
    position: relative;
}

/* Calculator page specific styles - full width without sidebar */
.construction-calculator-page .container {
    max-width: 1200px;
}

.construction-calculator-page .construction-calculator .container {
    max-width: 100%;
}

/* User Details Section */
.user-details-section .card {
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.user-details-section .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #17a2b8, #138496);
    transform: scaleX(0);
    transition: var(--transition);
}

.user-details-section .card:hover::before {
    transform: scaleX(1);
}

.user-details-section .card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(23, 162, 184, 0.2);
}

.user-details-section .card-header {
    background: linear-gradient(135deg, #17a2b8, #138496);
    border: none;
    color: white;
    font-weight: 600;
    padding: 1.25rem 2rem;
}

.calculator-form .card {
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.calculator-form .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-gold), var(--brand-dark-green));
    transform: scaleX(0);
    transition: var(--transition);
}

.calculator-form .card:hover::before {
    transform: scaleX(1);
}

.calculator-form .card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(185, 162, 112, 0.2);
}

.calculator-results .card {
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.calculator-results .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #28a745, #20c997);
    transform: scaleX(0);
    transition: var(--transition);
}

.calculator-results .card:hover::before {
    transform: scaleX(1);
}

.calculator-results .card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(40, 167, 69, 0.2);
}

.estimate-section .card {
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.estimate-section .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ffc107, #fd7e14);
    transform: scaleX(0);
    transition: var(--transition);
}

.estimate-section .card:hover::before {
    transform: scaleX(1);
}

.estimate-section .card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 193, 7, 0.2);
}

/* Card Headers */
.calculator-form .card-header {
    background: linear-gradient(135deg, var(--brand-dark-green), var(--brand-black));
    border: none;
    color: white;
    font-weight: 600;
    padding: 1.25rem 2rem;
}

.calculator-results .card-header {
    background: linear-gradient(135deg, #28a745, #20c997);
    border: none;
    color: white;
    font-weight: 600;
    padding: 1.25rem 2rem;
}

.estimate-section .card-header {
    background: linear-gradient(135deg, #ffc107, #fd7e14);
    border: none;
    color: var(--brand-dark-green);
    font-weight: 600;
    padding: 1.25rem 2rem;
}

/* Form Controls */
.form-control:focus,
.form-select:focus {
    border-color: var(--brand-gold);
    box-shadow: 0 0 0 0.2rem rgba(185, 162, 112, 0.25);
    transform: translateY(-1px);
}

.form-label {
    color: var(--brand-dark-green);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--brand-gold), var(--brand-dark-green));
    border: none;
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

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

.btn-success {
    background: linear-gradient(135deg, #28a745, #20c997);
    border: none;
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 10px;
    transition: var(--transition);
}

.btn-success:hover {
    background: linear-gradient(135deg, #20c997, #28a745);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107, #fd7e14);
    border: none;
    color: var(--brand-dark-green);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: var(--transition);
}

.btn-warning:hover {
    background: linear-gradient(135deg, #fd7e14, #ffc107);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--brand-dark-green);
}

.btn-outline-danger {
    border: 2px solid #dc3545;
    color: #dc3545;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: var(--transition);
}

.btn-outline-danger:hover {
    background: #dc3545;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
    background: #6c757d;
    transform: none;
    box-shadow: none;
}

/* Calculation Details */
.calculation-details {
    animation: fadeInUp 0.6s ease-out;
}

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

.calculation-details .row {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.calculation-details .row:last-child {
    border-bottom: none;
}

.calculation-details .row:first-of-type {
    border-top: 2px solid var(--brand-gold);
    background: rgba(185, 162, 112, 0.05);
    border-radius: 8px;
    margin: -0.5rem 0 0.5rem 0;
    padding: 0.75rem 0.5rem;
}

.calculation-details hr {
    border-color: var(--brand-gold);
    opacity: 0.3;
}

/* Estimate Table */
.estimate-section .table {
    margin-bottom: 0;
}

.estimate-section .table th {
    background: rgba(185, 162, 112, 0.1);
    color: var(--brand-dark-green);
    font-weight: 600;
    border: none;
    padding: 1rem 0.75rem;
}

.estimate-section .table td {
    padding: 0.75rem;
    border-color: rgba(0,0,0,0.05);
    vertical-align: middle;
}

.estimate-section .table tbody tr:hover {
    background: rgba(185, 162, 112, 0.05);
}

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
}

/* Loading animation */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.1em;
}

/* Form validation styles */
.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-control.is-valid {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

/* Modal Styles */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: linear-gradient(135deg, var(--brand-dark-green), var(--brand-black));
    color: white;
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-header .btn-close {
    filter: invert(1);
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border: none;
    padding: 1rem 2rem 2rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .construction-calculator {
        padding: 1.5rem 0;
    }
    
    .calculator-form .card-body,
    .calculator-results .card-body,
    .estimate-section .card-body {
        padding: 1.5rem;
    }
    
    .btn-primary,
    .btn-success {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .btn-warning,
    .btn-outline-danger {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .modal-footer {
        padding: 1rem 1.5rem 1.5rem;
    }
}

@media (max-width: 576px) {
    .form-control,
    .form-select {
        font-size: 0.9rem;
    }
    
    .calculation-details .row {
        font-size: 0.9rem;
    }
    
    .estimate-section .table {
        font-size: 0.85rem;
    }
    
    .estimate-section .table th,
    .estimate-section .table td {
        padding: 0.5rem 0.25rem;
    }
}