/* =========================================
   World Class Concrete & Pavers - Modern CSS
   ========================================= */

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #0f172a;
    --accent: #3b82f6;
    --text-main: #334155;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 16px;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: #f1f5f9;
}

.text-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: 0.3s;
}

.text-link:hover {
    border-bottom-color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.full-width {
    width: 100%;
    text-align: center;
}

.glow-effect:hover {
    animation: glow 1.5s infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 10px rgba(37, 99, 235, 0.2); }
    to { box-shadow: 0 0 20px rgba(37, 99, 235, 0.6); }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding: 15px 0;
    transition: 0.3s;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
    text-decoration: none;
}

.dot {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

.btn-nav {
    background: var(--primary);
    color: white !important;
    padding: 8px 20px;
    border-radius: 20px;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--secondary);
    margin: 5px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top right, #e0f2fe, #f0f9ff);
    overflow: hidden;
    padding-top: 80px;
}

.floating-shapes .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    z-index: 0;
    animation: float 10s infinite ease-in-out;
}

.shape-1 { width: 400px; height: 400px; background: #bfdbfe; top: -100px; right: -100px; }
.shape-2 { width: 300px; height: 300px; background: #ddd6fe; bottom: 10%; left: -50px; animation-delay: 2s; }
.shape-3 { width: 200px; height: 200px; background: #bae6fd; top: 40%; right: 20%; animation-delay: 4s; }

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, -20px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.badge {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    color: var(--secondary);
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.hero-btns {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 50px;
}

.stats-row {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 40px;
}

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

.stat-item .counter {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Glass Panel & Cards */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

/* Services */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 10px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.icon-box {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.feature-list li::before {
    content: "✓";
    color: var(--primary);
    margin-right: 8px;
    font-weight: bold;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: var(--primary);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    border-radius: 2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 4px solid var(--primary);
    border-radius: 50%;
    top: 25px;
    z-index: 1;
}

.left { left: 0; }
.right { left: 50%; }

.left::after { right: -14px; }
.right::after { left: -14px; }

.timeline-item .content {
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

/* Article Styling */
.article-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 50px;
}

.article-header {
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    padding-bottom: 20px;
}

.category-tag {
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
}

.article-header h2 {
    font-size: 2.2rem;
    margin: 15px 0;
    color: var(--secondary);
}

.meta-info {
    color: var(--text-light);
    font-size: 0.9rem;
}

.article-body h2 {
    font-size: 1.8rem;
    color: var(--secondary);
    margin: 40px 0 20px;
}

.article-body h3 {
    font-size: 1.4rem;
    color: var(--primary-dark);
    margin: 30px 0 15px;
}

.article-body p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.lead {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--secondary);
}

.callout-box {
    padding: 20px;
    border-left: 4px solid var(--primary);
    background: rgba(37, 99, 235, 0.05);
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
}

.checklist {
    list-style: none;
    margin: 20px 0;
}

.checklist li {
    margin-bottom: 12px;
    padding-left: 30px;
    position: relative;
}

.checklist li::before {
    content: "✔";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.styled-table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    font-size: 0.95rem;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    overflow: hidden;
}

.styled-table th, .styled-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #dddddd;
}

.styled-table th {
    background-color: var(--primary);
    color: #ffffff;
}

.styled-table tr:nth-of-type(even) {
    background-color: #f3f3f3;
}

.pros-cons-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}

.pros-box, .cons-box {
    padding: 20px;
    border-radius: 8px;
}

.pros-box { background: rgba(16, 185, 129, 0.1); border: 1px solid rgba(16, 185, 129, 0.2); }
.cons-box { background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.2); }

.pros-box h4 { color: #059669; margin-bottom: 10px; }
.cons-box h4 { color: #dc2626; margin-bottom: 10px; }

.pros-box ul, .cons-box ul { list-style: none; }
.pros-box li::before { content: "✅ "; }
.cons-box li::before { content: "⚠️ "; }

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: 20px;
    text-align: left;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--secondary);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
}

.faq-item.active .faq-question::after {
    content: '-';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 20px;
    background: #f8fafc;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 200px;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.stars { color: #fbbf24; margin-bottom: 15px; }

.author {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}

.avatar-initials {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
}

.info-group {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.info-group .icon {
    font-size: 1.5rem;
}

.hours-box {
    background: rgba(0,0,0,0.03);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 25px;
}

.hours-box ul {
    list-style: none;
    margin-top: 10px;
}

.hours-box li {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    border-bottom: 1px dashed #cbd5e1;
    padding-bottom: 4px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-family: inherit;
    transition: 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
footer {
    background: var(--secondary);
    color: #cbd5e1;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.brand-col h3 { color: white; margin-bottom: 15px; }
.footer-col h4 { color: white; margin-bottom: 20px; }

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: #cbd5e1; text-decoration: none; transition: 0.3s; }
.footer-col a:hover { color: var(--primary); }

.social-icons { display: flex; gap: 15px; margin-top: 20px; }
.social-icons a { 
    width: 35px; height: 35px; 
    background: rgba(255,255,255,0.1); 
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    color: white;
    text-decoration: none;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    font-size: 0.9rem;
}

/* Animations */
.fade-in { animation: fadeIn 1s ease-out; }
.fade-in-up { animation: fadeInUp 1s ease-out; }
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

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

/* Responsive */
@media (max-width: 992px) {
    .contact-wrapper { grid-template-columns: 1fr; }
    .timeline::after { left: 31px; }
    .timeline-item { width: 100%; padding-left: 70px; padding-right: 25px; }
    .timeline-item::after { left: 21px; }
    .right { left: 0; }
    .pros-cons-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        width: 100%;
        padding: 40px;
        transition: 0.3s;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    }
    .nav-links.active { right: 0; }
    .hamburger { display: block; }
    .hero-content h1 { font-size: 2.5rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .article-wrapper { padding: 25px; }
}

@media (max-width: 480px) {
    .hero-btns { flex-direction: column; }
    .stats-row { flex-direction: column; gap: 20px; }
    .footer-grid { grid-template-columns: 1fr; }
}