/* ============================================
   Infinity Pool Builders — Styles
   Design: Light editorial theme, navy/cyan palette
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #faf9f7;
    --bg-section: #f0f6fb;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f9fd;
    --primary: #1B3A6B;
    --primary-light: #4AAFE0;
    --primary-dark: #133052;
    --accent: #4AAFE0;
    --tint-bg: #f0f6fb;
    --text-white: #1a1a1a;
    --text-muted: #555555;
    --text-dim: #999999;
    --border: rgba(0, 0, 0, 0.08);
    --border-light: #e0ddd8;
    --radius: 4px;
    --radius-sm: 4px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; display: block; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 120px 0; }

/* --- Typography --- */
.section-tag { display: inline-block; font-size: 0.8rem; font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; color: var(--primary); margin-bottom: 16px; }
.section-title { font-family: var(--font-sans); font-size: clamp(2rem, 4vw, 3rem); font-weight: 600; line-height: 1.2; margin-bottom: 20px; color: var(--text-white); }
.section-title em { font-family: var(--font-serif); font-style: italic; color: var(--primary); }
.section-sub { font-size: 1.1rem; color: var(--text-muted); max-width: 560px; line-height: 1.7; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header .section-sub { margin: 0 auto; }

/* --- Buttons --- */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px; font-family: var(--font-sans); font-size: 0.95rem; font-weight: 500; border-radius: 60px; border: 1px solid transparent; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(27, 58, 107, 0.2); }
.btn-outline { background: transparent; color: var(--text-white); border-color: rgba(0, 0, 0, 0.15); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* --- Navigation --- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0; transition: all var(--transition); }
.nav.scrolled { padding: 12px 0; background: rgba(250, 249, 247, 0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-light); }
.nav-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo-symbol { height: 70px; width: auto; object-fit: cover; object-position: center top; clip-path: inset(5% 10% 45% 10%); margin: -10px -5px; }
.nav-logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text { font-family: var(--font-sans); font-size: 1.15rem; font-weight: 700; color: #1B3A6B; letter-spacing: 0.15em; }
.logo-sub { font-size: 0.65rem; font-weight: 500; letter-spacing: 0.2em; color: #1B3A6B; }
.nav-links { display: flex; gap: 36px; }
.nav-links a { font-size: 0.9rem; font-weight: 400; color: var(--text-muted); transition: color var(--transition); }
.nav-links a:hover { color: var(--text-white); }
.nav-cta { font-size: 0.9rem; font-weight: 500; color: var(--primary); padding: 10px 24px; border: 1px solid var(--primary); border-radius: 60px; transition: all var(--transition); }
.nav-cta:hover { background: var(--primary); color: #fff; }

.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-burger span { display: block; width: 24px; height: 2px; background: var(--text-white); border-radius: 2px; transition: all var(--transition); }
.nav-burger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-burger.active span:nth-child(2) { opacity: 0; }
.nav-burger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.5); z-index: 998; }
.mobile-overlay.open { display: block; }
.mobile-menu { display: none; flex-direction: column; padding: 24px; gap: 20px; position: relative; z-index: 999; background: #ffffff; }
.mobile-menu a { font-size: 1.1rem; color: var(--text-muted); }
.mobile-menu a:hover { color: var(--text-white); }
.mobile-cta { display: inline-block; text-align: center; padding: 14px 32px; background: var(--primary); color: #fff !important; border-radius: 60px; font-weight: 500; margin-top: 8px; }

/* --- Hero --- */
.hero { position: relative; display: flex; align-items: center; justify-content: center; padding: 140px 24px 80px; overflow: hidden; background: var(--bg-dark); }
.hero::before, .hero::after, .hero-overlay { display: none; }
.hero-image { margin: 48px auto 0; max-width: var(--container); padding: 0 24px; }
.hero-image img { width: 100%; height: 450px; object-fit: cover; border-radius: var(--radius); }
.hero-content { position: relative; text-align: center; max-width: 820px; }
.hero-tag { font-size: 0.8rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--primary); margin-bottom: 28px; }
.hero-title { font-family: var(--font-sans); font-size: clamp(2.8rem, 7vw, 5rem); font-weight: 700; line-height: 1.1; margin-bottom: 28px; letter-spacing: -0.02em; }
.hero-title span { display: block; }
.hero-title-italic { font-family: var(--font-serif); font-style: italic; font-weight: 400; color: var(--primary); }
.hero-sub { font-size: clamp(1rem, 1.8vw, 1.2rem); color: var(--text-muted); max-width: 600px; margin: 0 auto 40px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-scroll { display: none; }
.hero-scroll span { font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-dim); }
.scroll-line { width: 1px; height: 48px; background: linear-gradient(to bottom, var(--primary), transparent); animation: scrollPulse 2s ease-in-out infinite; }
@keyframes scrollPulse { 0%, 100% { opacity: 0.3; transform: scaleY(0.6); } 50% { opacity: 1; transform: scaleY(1); } }

.anim-up { opacity: 0; transform: translateY(40px); animation: animUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
@keyframes animUp { to { opacity: 1; transform: translateY(0); } }

/* --- Trust Bar --- */
.trust-bar { padding: 60px 0; border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); background: var(--bg-dark); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; text-align: center; }
.trust-number { font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 700; color: var(--primary); line-height: 1; }
.trust-plus { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; color: var(--primary); }
.trust-label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-top: 8px; letter-spacing: 0.05em; }

/* --- About --- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-text { font-size: 1.05rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
.about-features { margin-top: 36px; display: flex; flex-direction: column; gap: 24px; }
.about-feature { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon { flex-shrink: 0; width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: rgba(27, 58, 107, 0.08); border: 1px solid rgba(27, 58, 107, 0.15); border-radius: var(--radius-sm); color: var(--primary); }
.about-feature h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.about-feature p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.5; }
.about-image { position: relative; }
.about-img-wrapper { border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/5; background: var(--bg-card); border: 1px solid var(--border-light); }
.about-img-wrapper img { width: 100%; height: 100%; object-fit: cover; }
.about-badge { position: absolute; bottom: -20px; left: -20px; width: 120px; height: 120px; background: var(--primary); border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; color: #fff; box-shadow: 0 8px 30px rgba(27, 58, 107, 0.25); }
.badge-number { font-size: 1rem; font-weight: 500; line-height: 1; opacity: 0.8; }
.badge-text { font-size: 0.85rem; font-weight: 700; text-align: center; line-height: 1.3; margin-top: 2px; }

/* --- Why Fibreglass --- */
.why-fibreglass { background: var(--bg-section); }
.why-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.why-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 36px 28px; transition: all var(--transition); text-align: center; }
.why-card:hover { transform: translateY(-4px); border-color: var(--primary-light); }
.why-icon { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; background: rgba(27, 58, 107, 0.08); border: 1px solid rgba(27, 58, 107, 0.15); border-radius: 50%; color: var(--primary); margin: 0 auto 20px; }
.why-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; }
.why-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

/* --- Packages --- */
.packages { background: var(--bg-dark); }
.packages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.package-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 40px 32px; transition: all var(--transition); position: relative; display: flex; flex-direction: column; }
.package-card:hover { transform: translateY(-4px); border-color: var(--primary-light); }
.package-featured { border-color: var(--primary); box-shadow: 0 4px 20px rgba(27, 58, 107, 0.1); }
.package-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.05em; padding: 4px 16px; border-radius: 20px; white-space: nowrap; }
.package-header { background: var(--primary); color: #fff; padding: 24px; text-align: center; margin: -40px -32px 0; border-radius: var(--radius) var(--radius) 0 0; }
.package-header h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 4px; color: #fff; }
.package-size { font-size: 0.85rem; color: rgba(255, 255, 255, 0.8); }
.package-price { margin: 24px 0; padding: 20px 0; border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.price-from { display: block; font-size: 0.8rem; color: var(--text-dim); margin-bottom: 4px; }
.price-amount { font-family: var(--font-serif); font-size: 2.2rem; font-weight: 400; color: var(--primary); }
.package-includes { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; flex: 1; }
.package-includes li { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; color: var(--text-muted); }
.package-includes svg { color: var(--primary-light); flex-shrink: 0; }
.packages-note { text-align: center; font-size: 0.85rem; color: var(--text-dim); margin-top: 32px; }

/* --- Services --- */
.services { background: var(--bg-section); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card.featured { background: var(--bg-card); border: 1px solid var(--primary); box-shadow: 0 4px 20px rgba(27, 58, 107, 0.06); }
.service-card.featured .service-number { color: var(--primary); }
.service-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 40px 32px; transition: all var(--transition); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--primary); opacity: 0; transition: opacity var(--transition); }
.service-card:hover { background: var(--bg-card-hover); border-color: var(--border); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-number { font-size: 0.8rem; font-weight: 600; color: var(--primary); letter-spacing: 0.1em; margin-bottom: 20px; }
.service-title { font-size: 1.2rem; font-weight: 600; margin-bottom: 12px; line-height: 1.3; }
.service-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.service-tags li { font-size: 0.75rem; color: var(--text-dim); padding: 4px 12px; background: var(--bg-section); border: 1px solid var(--border-light); border-radius: 20px; }

/* --- Process --- */
.process-timeline { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 0; }
.process-step { display: flex; gap: 32px; position: relative; }
.step-marker { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; }
.step-num { width: 52px; height: 52px; display: flex; align-items: center; justify-content: center; background: rgba(27, 58, 107, 0.08); border: 1px solid rgba(27, 58, 107, 0.15); border-radius: 50%; font-size: 0.85rem; font-weight: 600; color: var(--primary); }
.step-line { width: 1px; flex: 1; background: linear-gradient(to bottom, var(--border), transparent); min-height: 60px; }
.process-step:last-child .step-line { display: none; }
.step-content { padding-bottom: 48px; padding-top: 12px; }
.step-content h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; }
.step-content p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

/* --- Portfolio --- */
.portfolio { background: var(--bg-section); }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.portfolio-item { position: relative; border-radius: var(--radius); overflow: hidden; cursor: pointer; aspect-ratio: 4/3; }
.portfolio-large { grid-column: span 2; }
.portfolio-img { width: 100%; height: 100%; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); }
.portfolio-img img { width: 100%; height: 100%; object-fit: cover; background: var(--bg-section); }
.portfolio-overlay { position: absolute; bottom: 0; left: 0; right: 0; padding: 32px 24px 24px; background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent); color: #fff; transform: translateY(20px); opacity: 0; transition: all var(--transition); }
.portfolio-overlay h3, .portfolio-overlay p { color: #fff; }
.portfolio-overlay .portfolio-location { color: var(--primary-light); }
.portfolio-item:hover .portfolio-overlay { transform: translateY(0); opacity: 1; }
.portfolio-location { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; color: var(--primary); margin-bottom: 6px; display: block; }
.portfolio-overlay h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
.portfolio-overlay p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; }

/* --- Testimonials --- */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 36px 32px; transition: all var(--transition); }
.testimonial-card:hover { border-color: var(--border); transform: translateY(-4px); }
.testimonial-stars { display: flex; gap: 2px; color: var(--primary); margin-bottom: 20px; }
.testimonial-quote { font-size: 0.95rem; color: var(--text-muted); line-height: 1.8; font-style: normal; margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 44px; height: 44px; background: rgba(27, 58, 107, 0.1); border: 1px solid rgba(27, 58, 107, 0.2); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 600; color: var(--primary); }
.author-name { display: block; font-size: 0.9rem; font-weight: 600; }
.author-location { font-size: 0.8rem; color: var(--text-dim); }

/* --- CTA Banner --- */
.cta-banner { padding: 80px 0; background: var(--bg-dark); }
.cta-inner { text-align: center; padding: 80px 40px; background: var(--primary); color: #fff; border-radius: var(--radius); position: relative; overflow: hidden; }
.cta-inner h2, .cta-inner p { color: #fff; }
.cta-inner p { opacity: 0.8; }
.cta-inner .btn-primary { background: #fff; color: var(--primary); border-color: #fff; }
.cta-inner .btn-primary:hover { background: rgba(255, 255, 255, 0.9); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15); }
.cta-inner .btn-outline { color: #fff; border-color: rgba(255, 255, 255, 0.3); }
.cta-inner .btn-outline:hover { border-color: #fff; color: #fff; background: rgba(255, 255, 255, 0.1); }
.cta-inner::before { display: none; }
.cta-inner h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 600; margin-bottom: 16px; }
.cta-inner em { font-family: var(--font-serif); font-style: italic; color: var(--primary-light); }
.cta-inner p { font-size: 1.05rem; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- Contact --- */
.contact { background: var(--bg-dark); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.contact-info p { font-size: 1rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 36px; }
.contact-details { display: flex; flex-direction: column; gap: 24px; }
.contact-detail { display: flex; align-items: flex-start; gap: 16px; color: var(--primary); }
.contact-detail svg { flex-shrink: 0; margin-top: 2px; }
.detail-label { display: block; font-size: 0.8rem; color: var(--text-dim); margin-bottom: 2px; }
.contact-detail a, .contact-detail span { font-size: 0.95rem; color: var(--text-white); }
.contact-detail a:hover { color: var(--primary); }

/* Form */
.contact-form-wrapper { position: relative; }
.contact-form { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 40px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text-muted); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 14px 16px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-sm); color: var(--text-white); font-family: var(--font-sans); font-size: 0.95rem; transition: border-color var(--transition); outline: none; }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-dim); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary); }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a92a6' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }
.form-group select option { background: #fff; color: var(--text-white); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-note { text-align: center; font-size: 0.8rem; color: var(--text-dim); margin-top: 16px; }
.form-success { display: none; text-align: center; padding: 60px 40px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); color: var(--primary); }
.form-success h3 { font-size: 1.3rem; color: var(--text-white); margin: 16px 0 8px; }
.form-success p { font-size: 0.95rem; color: var(--text-muted); }

/* --- Footer --- */
.footer { padding: 80px 0 40px; border-top: 1px solid var(--border-light); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 60px; }
.footer-logo-img { height: 60px; width: auto; margin-bottom: 4px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-top: 16px; max-width: 300px; }
.footer-links h4 { font-size: 0.85rem; font-weight: 600; letter-spacing: 0.05em; margin-bottom: 20px; color: var(--text-white); }
.footer-links a, .footer-links span { display: block; font-size: 0.88rem; color: var(--text-muted); margin-bottom: 12px; }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 32px; border-top: 1px solid var(--border-light); }
.footer-bottom p { font-size: 0.8rem; color: var(--text-dim); }
.footer-credit a { color: var(--primary); }
.footer-credit a:hover { text-decoration: underline; }

/* --- Calculator --- */
.calculator { background: var(--bg-section); padding: 120px 0; }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; margin-top: 48px; }
.calc-form { display: flex; flex-direction: column; gap: 20px; }
.calc-field label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text-muted); margin-bottom: 8px; }
.calc-field select, .calc-field .calc-checkboxes { width: 100%; padding: 14px 16px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-sm); color: var(--text-white); font-family: var(--font-sans); font-size: 0.95rem; outline: none; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; transition: border-color var(--transition); }
.calc-field select:focus { border-color: var(--primary); }
.calc-checkboxes { display: flex; flex-wrap: wrap; gap: 12px; background: none !important; border: none !important; padding: 0 !important; background-image: none !important; }
.calc-checkboxes label { display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; color: var(--text-white); cursor: pointer; padding: 8px 16px; border: 1px solid var(--border-light); border-radius: 24px; transition: all var(--transition); margin-bottom: 0; }
.calc-checkboxes label:has(input:checked) { background: rgba(27, 58, 107, 0.08); border-color: var(--primary); color: var(--primary-dark); }
.calc-checkboxes input { display: none; }

.calc-result { background: var(--primary); color: #fff; padding: 48px 40px; border-radius: var(--radius); text-align: center; position: sticky; top: 100px; }
.calc-result-label { font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(255, 255, 255, 0.6); }
.calc-result-estimate { font-family: var(--font-serif); font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 400; margin: 16px 0 8px; }
.calc-result-range { font-size: 0.9rem; color: rgba(255, 255, 255, 0.6); margin-bottom: 24px; }
.calc-result-note { font-size: 0.8rem; color: rgba(255, 255, 255, 0.5); line-height: 1.5; margin-bottom: 24px; }
.calc-result .btn { background: #fff; color: var(--primary); border: none; }
.calc-result .btn:hover { background: rgba(255, 255, 255, 0.9); transform: translateY(-2px); }

.calc-consult-cta { display: none; text-align: center; padding: 48px 40px; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); }
.calc-consult-cta.visible { display: block; }
.calc-initial { text-align: center; padding: 48px 40px; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius); }
.calc-initial h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }

/* --- Lightbox --- */
.lightbox { display: none; position: fixed; inset: 0; z-index: 2000; background: rgba(0, 0, 0, 0.9); align-items: center; justify-content: center; padding: 40px; }
.lightbox.open { display: flex; }
.lightbox-img { max-width: 90vw; max-height: 80vh; object-fit: contain; border-radius: var(--radius); }
.lightbox-close { position: absolute; top: 24px; right: 24px; width: 48px; height: 48px; background: rgba(255, 255, 255, 0.1); border: none; border-radius: 50%; color: #fff; font-size: 1.5rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background var(--transition); }
.lightbox-close:hover { background: rgba(255, 255, 255, 0.2); }
.lightbox-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; background: rgba(255, 255, 255, 0.1); border: none; border-radius: 50%; color: #fff; font-size: 1.2rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background var(--transition); }
.lightbox-nav:hover { background: rgba(255, 255, 255, 0.2); }
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }
.lightbox-caption { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); text-align: center; color: #fff; }
.lightbox-caption h3 { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 400; }
.lightbox-caption span { font-size: 0.8rem; color: rgba(255, 255, 255, 0.6); letter-spacing: 0.1em; text-transform: uppercase; }

/* --- Service Areas --- */
.service-areas { padding: 80px 0; background: var(--bg-dark); border-top: 1px solid var(--border-light); }
.areas-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 32px; }
.area-tag { padding: 10px 20px; border: 1px solid var(--border-light); border-radius: 24px; font-size: 0.88rem; color: var(--text-muted); transition: all var(--transition); }
.area-tag:hover { border-color: var(--primary); color: var(--primary); }

/* --- Before/After Slider --- */
.comparison-section { padding: 80px 0; background: var(--bg-dark); }
.comparison-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.comparison-item { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-light); }
.comparison-item img-comparison-slider { --divider-width: 2px; --divider-color: var(--primary); --handle-opacity: 1; }
.comparison-item img { width: 100%; height: 300px; object-fit: cover; }
.comparison-label { padding: 16px; text-align: center; }
.comparison-label h4 { font-size: 1rem; font-weight: 600; }
.comparison-label span { font-size: 0.8rem; color: var(--text-dim); }

/* --- Form States --- */
.btn-loading { opacity: 0.7; pointer-events: none; }
.form-error { display: none; text-align: center; padding: 16px; background: #fef2f2; border: 1px solid #fecaca; border-radius: var(--radius-sm); color: #991b1b; font-size: 0.9rem; margin-top: 16px; }
.form-error.visible { display: block; }

/* --- Focus styles --- */
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* --- Reveal Animation --- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .section { padding: 80px 0; }
    .about-grid { gap: 48px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-large { grid-column: span 1; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    .calc-grid { grid-template-columns: 1fr; }
    .calc-result { position: static; }
    .comparison-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid { grid-template-columns: repeat(3, 1fr); }
    .packages-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .nav-burger { display: flex; }
    .mobile-menu.open { display: flex; }
    .hero { padding: 100px 24px 60px; min-height: 90vh; }
    .hero-scroll { display: none; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-image { order: -1; }
    .about-img-wrapper { aspect-ratio: 16/10; }
    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form { padding: 28px; }
    .cta-inner { padding: 48px 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .portfolio-overlay { transform: translateY(0); opacity: 1; }
    .comparison-grid { grid-template-columns: 1fr; }
    .calculator { padding: 80px 0; }
    .hero-image img { height: 280px; }
    .lightbox { padding: 16px; }
    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
    .why-grid { grid-template-columns: 1fr; }
    .packages-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
    .reveal { opacity: 1; transform: none; }
    .anim-up { opacity: 1; transform: none; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.4rem; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { justify-content: center; }
    .cta-actions { flex-direction: column; align-items: stretch; }
    .cta-actions .btn { justify-content: center; }
}