/* Architectural Signage Page Styles */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --border-color: #bdc3c7;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --border-radius-lg: 15px;
    --transition: all 0.3s ease;
    --font-family: 'Montserrat', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 800;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    max-width: 250px;
    transition: transform 0.3s ease;
    object-fit: contain;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1rem;
    flex-wrap: nowrap;
    justify-content: flex-end;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-link {
    text-decoration: none;
    color: #2c3e50;
    font-weight: var(--font-weight-medium);
    font-size: 0.8rem;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    transition: color 0.3s ease;
    position: relative;
    white-space: nowrap;
    padding: 0.35rem 0;
    display: flex;
    align-items: center;
}

.nav-link:hover {
    color: #3498db;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #3498db;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cta-button {
    background: var(--accent-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.cta-button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
    z-index: 1001;
}

.hamburger:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #2c3e50;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hamburger Animation */
.hamburger.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1rem;
    text-align: center;
    color: #bdc3c7;
}

/* Hero Section */
.architectural-hero {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 50%, #1a252f 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.architectural-hero::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="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

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

.architectural-hero h1 {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.architectural-hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-btn {
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.hero-btn.primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.hero-btn.secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.hero-btn.secondary:hover {
    background: white;
    color: var(--dark-color);
    transform: translateY(-2px);
}

/* Articles Section */
.articles-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.articles-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.article-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.article-image {
    height: 200px;
    overflow: hidden;
}

.article-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-img {
    transform: scale(1.05);
}

.article-content {
    padding: 1.5rem;
}

.article-content h3 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.article-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.article-meta i {
    margin-right: 0.25rem;
}

.read-more-btn {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.read-more-btn:hover {
    color: #2980b9;
    transform: translateX(5px);
}

/* Templates Section */
.templates-section {
    padding: 80px 0;
    background: white;
}

.templates-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.template-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.template-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color), #2980b9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.template-card h3 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.template-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.download-btn {
    background: var(--success-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.download-btn:hover {
    background: #229954;
    transform: translateY(-2px);
}

/* Project Tools Section */
.project-tools-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    background-size: 400% 400%;
    animation: joomlaFlow 15s ease-in-out infinite;
    color: white;
}

@keyframes joomlaFlow {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.project-tools-section h2 {
    text-align: center;
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: white;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.project-tools-section > .container > p {
    text-align: center;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.tool-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2ecc71, #27ae60, #3498db);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.tool-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.tool-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    box-shadow: 0 8px 25px rgba(46, 204, 113, 0.3);
    transition: all 0.3s ease;
}

.tool-card:hover .tool-icon {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(46, 204, 113, 0.4);
}

.tool-icon i {
    font-size: 2.5rem;
    color: white;
}

.tool-card h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.tool-card p {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.tool-form {
    text-align: left;
}

.tool-form .form-group {
    margin-bottom: 1.5rem;
}

.tool-form label {
    display: block;
    font-weight: var(--font-weight-semibold);
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.tool-input,
.tool-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    transition: var(--transition);
    background: white;
}

.tool-input:focus,
.tool-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.tool-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    margin-top: 1rem;
}

.tool-btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.tool-result {
    margin-top: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
    display: none;
    animation: fadeInUp 0.5s ease;
}

.tool-result.show {
    display: block;
}

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

/* Project Quote Section */
.project-quote-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 50%, #1a252f 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.project-quote-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="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.quote-header {
    text-align: center;
    margin-bottom: 4rem;
}

.quote-header h2 {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.quote-header p {
    font-size: 1.3rem;
    line-height: 1.6;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

.quote-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
}

.quote-benefits {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f39c12, #e67e22);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 25px rgba(243, 156, 18, 0.3);
}

.benefit-icon i {
    font-size: 1.5rem;
    color: white;
}

.benefit-text h4 {
    font-size: 1.2rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.5rem;
    color: white;
}

.benefit-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
    font-size: 0.95rem;
    opacity: 0.8;
    margin: 0;
    line-height: 1.5;
}

.quote-form-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem;
    border-radius: 25px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--dark-color);
}

.quote-form-container,
.quote-form-container * {
    color: var(--dark-color) !important;
}

.quote-form-container .form-header h3,
.quote-form-container .form-header p,
.quote-form-container .form-section h4,
.quote-form-container .form-group label,
.quote-form-container .checkbox-text {
    color: var(--dark-color) !important;
}

.form-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.form-header h3 {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.form-header p {
    color: var(--text-light);
    font-size: 1rem;
}

.project-quote-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-section {
    border-bottom: 2px solid #f8f9fa;
    padding-bottom: 2rem;
}

.form-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.form-section h4 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-semibold);
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-section h4::before {
    content: '';
    width: 4px;
    height: 20px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-radius: 2px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: var(--font-weight-semibold);
    color: var(--dark-color);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    transition: var(--transition);
    background: white;
    color: var(--dark-color);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #bdc3c7;
}

.form-group select option {
    color: var(--dark-color);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.checkbox-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.checkbox-item:hover {
    background: #f8f9fa;
}

.checkbox-item input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkbox-text {
    font-size: 0.9rem;
    color: var(--dark-color);
    font-weight: var(--font-weight-medium);
}

.quote-submit-btn {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.quote-submit-btn:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

.quote-submit-btn:active {
    transform: translateY(0);
}

/* Guidelines Section */
.guidelines-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.guidelines-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.guidelines-section > .container > p {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.guidelines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.guideline-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.guideline-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-color), #2980b9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.guideline-card h3 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.guideline-content h4 {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--dark-color);
    margin-bottom: 0.75rem;
    margin-top: 1.5rem;
}

.guideline-content h4:first-child {
    margin-top: 0;
}

.guideline-content ul {
    list-style: none;
    margin-bottom: 1rem;
}

.guideline-content li {
    padding: 0.25rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.guideline-content li:last-child {
    margin-bottom: 0;
}

.guideline-content li::before {
    content: '•';
    color: var(--accent-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.guideline-note {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-top: 1rem;
    color: #856404;
    font-size: 0.9rem;
    line-height: 1.5;
}

.guidelines-cta {
    text-align: center;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}

.guidelines-cta h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.guidelines-cta p {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.guideline-cta-btn {
    background: var(--accent-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    display: inline-block;
    transition: var(--transition);
}

.guideline-cta-btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

/* Upload Portal Section */
.upload-portal-section {
    background: linear-gradient(135deg, #2b5876 0%, #4e4376 50%, #2b5876 100%);
    background-size: 400% 400%;
    animation: seaBlueFlow 15s ease-in-out infinite;
    padding: 3rem;
    border-radius: 15px;
    margin-top: 2rem;
    color: white;
}

@keyframes seaBlueFlow {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.upload-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.upload-text h3 {
    font-size: 1.8rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1rem;
    color: white;
}

.upload-text p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.upload-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.upload-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.upload-features i {
    color: #74b9ff;
    width: 20px;
}

.upload-action {
    flex-shrink: 0;
}

.upload-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.upload-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        padding: 1rem;
        gap: 1rem;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }
    
    .architectural-hero h1 {
        font-size: 2.5rem;
    }
    
    .architectural-hero p {
        font-size: 1rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .templates-grid {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .project-tools-section h2 {
        font-size: 2rem;
    }
    
    .quote-content {
        grid-template-columns: 1fr;
        max-width: 800px;
    }
    
    .quote-text h2 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .quote-benefits {
        order: 2;
    }
    
    .quote-content {
        gap: 2rem;
    }
    
    .quote-form-container {
        padding: 2rem;
    }
    
    .form-section {
        padding-bottom: 1.5rem;
    }
    
    .form-section h4 {
        font-size: 1.2rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .checkbox-grid {
        grid-template-columns: 1fr;
    }
    
    .checkbox-item {
        padding: 0.75rem;
    }
    
    .quote-submit-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
    
    .guidelines-grid {
        grid-template-columns: 1fr;
    }
    
    .guidelines-section h2 {
        font-size: 2rem;
    }
    
    .guidelines-cta {
        padding: 2rem;
    }
    
    .guidelines-cta h3 {
        font-size: 1.3rem;
    }
    
    .upload-content {
        flex-direction: column;
        text-align: center;
    }
    
    .upload-text h3 {
        font-size: 1.5rem;
    }
    
    .upload-features {
        text-align: left;
    }
}

/* Medium screens - tablets and smaller desktops */
@media (max-width: 1024px) {
    .quote-content {
        grid-template-columns: 1fr;
        max-width: 900px;
        gap: 2.5rem;
    }

    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* Desktop Optimizations */
@media (min-width: 1400px) {
    .main-article {
        max-width: 1600px;
        padding: 4rem;
    }
    
    .compliance-rules {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sign-types-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .specs-overview {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .takeaways-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .braille-specs,
    .mounting-requirements,
    .contrast-requirements,
    .pictogram-requirements {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contrast-samples {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .compliance-checklist {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .best-practices {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .code-variations {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .resources-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1800px) {
    .main-article {
        max-width: 1800px;
        padding: 5rem;
    }
    
    .compliance-rules {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .article-section {
        margin-bottom: 4rem;
    }
    
    .article-section h2 {
        font-size: 2.5rem;
    }
    
    .article-section h3 {
        font-size: 1.6rem;
    }
}

/* Article Content Styles */
.article-content {
    padding: 80px 0;
    background: #f8f9fa;
}

.main-article {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.article-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: var(--text-light);
    flex-wrap: wrap;
}

.article-meta i {
    margin-right: 0.5rem;
}

.article-intro {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #f8f9fa;
}



/* Key Takeaways */
.key-takeaways {
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #525252 0%, #3d72b4 100%);
    background-size: 400% 400%;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    color: white;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.key-takeaways h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    color: white;
    border-left: none;
}

.key-takeaways h2 i {
    font-size: 1.5rem;
}

.takeaways-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.takeaway-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.takeaway-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.takeaway-icon i {
    font-size: 1.5rem;
    color: white;
}

.takeaway-item h4 {
    color: white;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.takeaway-item p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 0;
}

.article-section {
    margin-bottom: 3rem;
}

.article-section h2 {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--accent-color);
    padding-left: 1rem;
}

.article-section h3 {
    font-size: 1.4rem;
    font-weight: var(--font-weight-semibold);
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.article-section h4 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

.article-section p {
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

/* Compliance Rules */
.compliance-rules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1rem;
}

.rule-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: var(--border-radius);
    border-left: 3px solid var(--accent-color);
}

.rule-number {
    width: 32px;
    height: 32px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.rule-content h4 {
    margin-bottom: 0.25rem;
    color: var(--dark-color);
    font-size: 1rem;
}

.rule-content p {
    margin-bottom: 0.25rem;
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.4;
}

.legal-citation {
    background: #fafbfc;
    border-left: 2px solid #e9ecef;
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: #6c757d;
    border-radius: 0 3px 3px 0;
    font-style: italic;
}

.legal-citation strong {
    color: #495057;
    font-weight: var(--font-weight-medium);
}

/* Quick Reference Table */
.quick-reference-table {
    margin: 2rem 0;
    overflow-x: auto;
}

.quick-reference-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.quick-reference-table th {
    background: var(--accent-color);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: var(--font-weight-semibold);
    border-bottom: 2px solid #2980b9;
}

.quick-reference-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #e9ecef;
    vertical-align: middle;
}

.quick-reference-table td:last-child {
    font-size: 0.75rem;
    color: #6c757d;
    font-style: italic;
}

.quick-reference-table tr:nth-child(even) {
    background: #f8f9fa;
}

.quick-reference-table .required {
    color: #27ae60;
    font-weight: var(--font-weight-semibold);
}

.quick-reference-table .not-required {
    color: #e74c3c;
    font-weight: var(--font-weight-semibold);
}

/* Sign Types Grid */
.sign-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.sign-type-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.sign-type-card h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.sign-type-card h3 i {
    font-size: 1.2rem;
}

.requirements h4 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.requirements ul {
    list-style: none;
    padding: 0;
}

.requirements li {
    padding: 0.25rem 0;
    color: var(--text-color);
    border-bottom: 1px solid #e9ecef;
}

.requirements li:last-child {
    border-bottom: none;
}

/* Specifications Overview */
.specs-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.spec-highlight {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-color);
}

.spec-highlight h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.spec-highlight h3 i {
    font-size: 1.2rem;
}

/* Comprehensive Specifications */
.comprehensive-specs {
    margin-top: 3rem;
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.comprehensive-specs h3 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
}

.specs-table {
    overflow-x: auto;
}

.specs-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--border-radius);
}

.specs-table th {
    background: var(--accent-color);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: var(--font-weight-semibold);
    border-bottom: 2px solid #2980b9;
}

.specs-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #e9ecef;
    vertical-align: middle;
}

.specs-table td:last-child {
    font-size: 0.75rem;
    color: #6c757d;
    font-style: italic;
}

.specs-table tr:nth-child(even) {
    background: #f8f9fa;
}

.specs-table tr:hover {
    background: rgba(52, 152, 219, 0.05);
}

/* Specifications Grid */
.spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.spec-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.height-chart table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.height-chart th,
.height-chart td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.height-chart th {
    background: var(--accent-color);
    color: white;
    font-weight: var(--font-weight-semibold);
}

.proportion-rules ul {
    list-style: none;
    padding: 0;
}

.proportion-rules li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.proportion-rules li:last-child {
    border-bottom: none;
}

/* Braille Specifications */
.braille-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.braille-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.braille-card ul {
    list-style: none;
    padding: 0;
}

.braille-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.braille-card li:last-child {
    border-bottom: none;
}

/* Mounting Requirements */
.mounting-requirements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.mounting-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.mounting-card ul {
    list-style: none;
    padding: 0;
}

.mounting-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.mounting-card li:last-child {
    border-bottom: none;
}

/* Contrast Requirements */
.contrast-requirements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contrast-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.contrast-card ul {
    list-style: none;
    padding: 0;
}

.contrast-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.contrast-card li:last-child {
    border-bottom: none;
}

/* Contrast Samples */
.contrast-samples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.contrast-sample {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.sample-box {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.sample-letter {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.sample-label {
    font-size: 0.8rem;
    color: var(--text-light);
    text-align: center;
    line-height: 1.2;
}

/* Pictogram Requirements */
.pictogram-requirements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.pictogram-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.pictogram-card ul {
    list-style: none;
    padding: 0;
}

.pictogram-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.pictogram-card li:last-child {
    border-bottom: none;
}

/* Compliance Requirements */
.compliance-requirements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.requirement-category {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.requirement-category h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
    font-size: 1.2rem;
    font-weight: var(--font-weight-semibold);
}

.requirement-category p {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

/* Best Practices */
.best-practices {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.practice-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.practice-card ul {
    list-style: none;
    padding: 0;
}

.practice-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
    position: relative;
    padding-left: 1.5rem;
}

.practice-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.practice-card li:last-child {
    border-bottom: none;
}

/* Code Variations */
.code-variations {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.variation-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.variation-card ul {
    list-style: none;
    padding: 0;
}

.variation-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.variation-card li:last-child {
    border-bottom: none;
}

.important-note {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-top: 2rem;
    color: #856404;
}

.important-note h3 {
    color: #856404;
    margin-bottom: 1rem;
}

/* Related Resources */
.related-resources {
    padding: 80px 0;
    background: white;
}

.related-resources h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 3rem;
    color: var(--dark-color);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.resource-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

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

.resource-card i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.resource-card h3 {
    font-size: 1.2rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.resource-card p {
    color: var(--text-light);
    line-height: 1.6;
}

@media (max-width: 480px) {
    .architectural-hero {
        padding: 100px 0 60px;
    }
    
    .architectural-hero h1 {
        font-size: 2rem;
    }
    
    .main-article {
        padding: 2rem 1.5rem;
    }
    
    .template-card {
        padding: 1.5rem;
    }
    
    .quote-form-container {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .nav-menu.active {
        padding: 1rem;
    }
    
    .quote-benefits {
        gap: 1.5rem;
    }
    
    .quote-form-container {
        padding: 1.5rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .checkbox-grid {
        grid-template-columns: 1fr;
    }
    
    .checkbox-item {
        padding: 0.75rem;
    }
    
    .quote-submit-btn {
        padding: 1rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .tool-card {
        padding: 2rem 1.5rem;
    }
    
    .tool-form .form-group {
        margin-bottom: 1rem;
    }
    
    .tool-input,
    .tool-select {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .tool-btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .compliance-rules {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .rule-item {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
        padding: 0.75rem;
    }
    
    .rule-number {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
    
    .rule-content h4 {
        font-size: 0.95rem;
    }
    
    .rule-content p {
        font-size: 0.85rem;
    }
    
    .sign-types-grid,
    .spec-grid,
    .specs-overview,
    .braille-specs,
    .mounting-requirements,
    .contrast-requirements,
    .pictogram-requirements,
    .compliance-checklist,
    .best-practices,
    .code-variations,
    .takeaways-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-reference-table {
        font-size: 0.85rem;
    }
    
    .quick-reference-table th,
    .quick-reference-table td {
        padding: 0.5rem;
    }
    
    .specs-table th,
    .specs-table td {
        padding: 0.5rem;
        font-size: 0.85rem;
    }
    
    .key-takeaways {
        padding: 1.5rem;
    }
    
    .takeaway-item {
        padding: 1rem;
    }
    
    /* Mobile-optimized quote form for narrow screens */
    .quote-form-container {
        padding: 1rem 0.5rem;
        margin: 0 0.25rem;
        border-radius: 10px;
    }
    
    .form-header h3 {
        font-size: 1.4rem;
        margin-bottom: 0.5rem;
    }
    
    .form-header p {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .form-section {
        margin-bottom: 1rem;
        padding-bottom: 1rem;
    }
    
    .form-section h4 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .form-group {
        margin-bottom: 0.75rem;
    }
    
    .form-group label {
        font-size: 0.8rem;
        margin-bottom: 0.3rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.6rem;
        font-size: 16px;
        border-radius: 6px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .checkbox-grid {
        grid-template-columns: 1fr;
        gap: 0.4rem;
    }
    
    .checkbox-item {
        padding: 0.5rem;
        min-height: 40px;
        border-radius: 6px;
    }
    
    .checkbox-text {
        font-size: 0.8rem;
    }
    
    .quote-submit-btn {
        padding: 0.8rem;
        font-size: 1rem;
        min-height: 44px;
        border-radius: 8px;
    }
}