/* ============================================
   FRESHVENT — Premium Corporate Stylesheet
   Air Duct Cleaning | Plano & DFW Metroplex
   ============================================ */

/* ---- CSS Variables ---- */
:root {
    --primary: #0b3d91;
    --primary-dark: #082c6b;
    --primary-light: #1a5bc4;
    --accent: #00b4d8;
    --accent-dark: #0096b7;
    --accent-light: #48cae4;
    --cta: #f77f00;
    --cta-dark: #e06c00;
    --cta-light: #ffb347;
    --success: #16a34a;
    --danger: #dc2626;
    --dark: #0f172a;
    --dark-soft: #1e293b;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
h1, h2, h3, h4, h5 { line-height: 1.2; color: var(--dark); }

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-accent { color: var(--accent); }
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}
.section-header-left { text-align: left; }
.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 16px;
}
.section-tag i { margin-right: 6px; }
.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    margin-bottom: 16px;
}
.section-header p {
    font-size: 1.05rem;
    color: var(--gray-500);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.btn i { font-size: 0.9em; }
.btn-primary {
    background: var(--cta);
    color: var(--white);
    border-color: var(--cta);
}
.btn-primary:hover { background: var(--cta-dark); border-color: var(--cta-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(247,127,0,0.3); }
.btn-secondary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}
.btn-secondary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(11,61,145,0.3); }
.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--primary); }
.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}
.btn-outline-light:hover { background: rgba(255,255,255,0.15); border-color: var(--white); }
.btn-cta {
    background: var(--cta);
    color: var(--white);
    border-color: var(--cta);
    font-size: 1.05rem;
    padding: 16px 36px;
}
.btn-cta:hover { background: var(--cta-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(247,127,0,0.35); }
.btn-phone {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.3);
    font-size: 0.85rem;
    padding: 8px 16px;
}
.btn-phone:hover { background: rgba(255,255,255,0.1); color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; justify-content: center; }

/* ---- TOP BAR ---- */
.top-bar {
    background: var(--dark);
    color: var(--gray-400);
    font-size: 0.8rem;
    padding: 8px 0;
    font-weight: 500;
}
.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.top-bar-left, .top-bar-right { display: flex; align-items: center; gap: 12px; }
.top-bar-divider { color: var(--gray-600); }
.top-bar a { color: var(--accent-light); }
.top-bar a:hover { color: var(--white); }
.top-bar i { margin-right: 4px; font-size: 0.75rem; }

/* ---- HEADER ---- */
.site-header {
    background: var(--dark);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
}
.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}
.logo {
    display: flex;
    align-items: center;
}
.logo-img {
    width: 160px;
    height: 160px;
    max-width: none;
    object-fit: contain;
    margin: -40px -30px -40px -15px;
    pointer-events: none;
}
.logo {
    overflow: visible;
}
.logo-img-footer {
    width: 140px;
    height: 140px;
    max-width: none;
    margin: -35px -25px -35px -10px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-link {
    color: rgba(255,255,255,0.8);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--white); background: rgba(255,255,255,0.1); }
.nav-link i { font-size: 0.65rem; margin-left: 4px; }

.nav-dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    min-width: 240px;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; }
.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    border-radius: var(--radius-sm);
}
.dropdown-menu a:hover { background: var(--gray-100); color: var(--primary); }
.dropdown-menu a i { color: var(--accent); width: 20px; text-align: center; }

.header-cta { display: flex; align-items: center; gap: 10px; }

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-toggle span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ---- HERO ---- */
.hero {
    position: relative;
    background: url('PIC/dryer-vent.jpg') center center / cover no-repeat;
    padding: 80px 0 100px;
    overflow: hidden;
    min-height: 680px;
    display: flex;
    align-items: center;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(8,20,60,0.82) 0%, rgba(8,20,60,0.50) 50%, rgba(8,20,60,0.25) 100%);
    z-index: 0;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-content { color: var(--white); }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    color: var(--accent-light);
}
.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.1;
}
.hero-sub {
    font-size: 1.1rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.8);
    margin-bottom: 28px;
    max-width: 540px;
}
.hero-special { margin-bottom: 32px; }
.special-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, var(--cta), #ff9a3c);
    color: var(--white);
    padding: 16px 32px;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(247,127,0,0.4);
    position: relative;
    overflow: hidden;
}
.special-badge::before {
    content: '';
    position: absolute;
    inset: 2px;
    border: 2px dashed rgba(255,255,255,0.3);
    border-radius: 14px;
    pointer-events: none;
}
.special-label {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: rgba(0,0,0,0.2);
    padding: 2px 12px;
    border-radius: 20px;
    margin-bottom: 4px;
}
.special-price {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1;
}
.special-desc {
    font-size: 0.85rem;
    font-weight: 700;
    text-align: center;
    line-height: 1.3;
}
.special-fine {
    font-size: 0.7rem;
    opacity: 0.8;
    margin-top: 4px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-trust-strip {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255,255,255,0.8);
}
.trust-item i { color: var(--accent-light); }

/* Hero Form */
.hero-form-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}
.form-card-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 20px 28px;
    text-align: center;
}
.form-card-header h3 { color: var(--white); font-size: 1.15rem; margin-bottom: 4px; }
.form-card-header h3 i { margin-right: 8px; color: var(--accent-light); }
.form-card-header p { color: rgba(255,255,255,0.7); font-size: 0.82rem; }
.lead-form { padding: 24px 28px 28px; }
.form-group { margin-bottom: 14px; }
.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-main);
    font-size: 0.95rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    color: var(--dark);
    transition: var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group select:focus {
    border-color: var(--accent);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(0,180,216,0.1);
}
.form-group input::placeholder { color: var(--gray-400); }
.form-disclaimer {
    text-align: center;
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: 12px;
}
.form-disclaimer i { margin-right: 4px; }

/* ---- AUTHORITY WALL ---- */
.authority-wall {
    background: var(--gray-50);
    padding: 48px 0;
    border-bottom: 1px solid var(--gray-200);
}
.authority-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}
.authority-card {
    text-align: center;
    padding: 24px 12px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.authority-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.authority-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    border-radius: 50%;
    font-size: 1.3rem;
    margin-bottom: 12px;
}
.authority-card h4 {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
    color: var(--primary);
}
.authority-card p {
    font-size: 0.78rem;
    color: var(--gray-500);
    line-height: 1.5;
}

/* ---- WHY US ---- */
.why-us {
    padding: 100px 0;
    background: var(--white);
}
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.why-card {
    padding: 36px 28px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.why-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
    background: var(--white);
}
.why-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(0,180,216,0.1), rgba(11,61,145,0.1));
    color: var(--accent);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    margin-bottom: 20px;
}
.why-card h3 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 10px;
}
.why-card p {
    font-size: 0.92rem;
    color: var(--gray-500);
}

/* ---- SERVICES ---- */
.services {
    padding: 100px 0;
    background: var(--gray-50);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}
.service-card-featured {
    border-color: var(--cta);
    box-shadow: 0 0 0 2px rgba(247,127,0,0.15);
}
.service-image-wrapper {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
}
.service-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.service-price-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--cta);
    color: var(--white);
    font-weight: 800;
    font-size: 0.95rem;
    padding: 6px 16px;
    border-radius: 50px;
}
.service-body {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    margin-bottom: 16px;
}
.service-body h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 10px;
}
.service-body p {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-bottom: 20px;
}
.service-features {
    margin-bottom: 24px;
    flex: 1;
}
.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--gray-700);
}
.service-features li i { color: var(--success); font-size: 0.8rem; }

/* ---- IMAGE COLLAGE ---- */
.visual-proof {
    padding: 100px 0;
    background: var(--white);
}
.image-collage {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 240px;
    gap: 16px;
}
.collage-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
}
.collage-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.collage-item:hover img { transform: scale(1.05); }
.collage-large { grid-column: span 2; }
.collage-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: var(--white);
    padding: 32px 20px 16px;
    font-size: 0.85rem;
    font-weight: 700;
}

/* ---- HOW IT WORKS ---- */
.how-it-works {
    padding: 100px 0;
    background: var(--gray-50);
}
.steps-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 16px;
}
.step-card {
    flex: 1;
    max-width: 320px;
    text-align: center;
    padding: 40px 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    position: relative;
}
.step-number {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    background: var(--cta);
    color: var(--white);
    font-weight: 900;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}
.step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0,180,216,0.1), rgba(11,61,145,0.08));
    color: var(--accent);
    border-radius: 50%;
    font-size: 1.5rem;
    margin-bottom: 20px;
}
.step-card h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 10px; }
.step-card p { font-size: 0.9rem; color: var(--gray-500); }
.step-connector {
    display: flex;
    align-items: center;
    color: var(--gray-300);
    font-size: 1.5rem;
    padding-top: 60px;
}

/* ---- STATS ---- */
.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    position: relative;
    overflow: hidden;
}
.stats-overlay {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E");
}
.stats-content {
    text-align: center;
    margin-bottom: 48px;
    position: relative;
    z-index: 1;
}
.stats-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    color: var(--white);
    margin-bottom: 12px;
}
.stats-intro {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.7);
    max-width: 600px;
    margin: 0 auto;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}
.stat-card {
    text-align: center;
    padding: 32px 20px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-lg);
}
.stat-number {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--accent-light);
    line-height: 1;
    margin-bottom: 8px;
}
.stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.5;
}

/* ---- REVIEWS ---- */
.reviews {
    padding: 100px 0;
    background: var(--white);
}
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 48px;
}
.review-card {
    padding: 32px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.review-stars {
    color: #f59e0b;
    font-size: 0.9rem;
    margin-bottom: 16px;
    display: flex;
    gap: 2px;
}
.review-text {
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}
.review-author strong {
    display: block;
    font-size: 0.92rem;
    color: var(--dark);
}
.review-author span {
    font-size: 0.78rem;
    color: var(--gray-400);
}
.reviews-cta { text-align: center; }

/* ---- SERVICE AREAS ---- */
.service-areas {
    padding: 100px 0;
    background: var(--gray-50);
}
.areas-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.areas-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 20px;
}
.areas-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--gray-700);
}
.areas-list li i { color: var(--accent); font-size: 0.85rem; }
.areas-note {
    font-size: 0.85rem;
    color: var(--gray-500);
}
.areas-note i { color: var(--accent); margin-right: 6px; }

/* ---- FAQ ---- */
.faq {
    padding: 100px 0;
    background: var(--white);
}
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item.active { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,180,216,0.1); }
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: var(--gray-50);
    border: none;
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
    text-align: left;
    transition: var(--transition);
}
.faq-question:hover { background: var(--gray-100); }
.faq-question i {
    color: var(--accent);
    font-size: 0.85rem;
    transition: transform var(--transition);
}
.faq-item.active .faq-question { background: var(--white); }
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.92rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ---- FINAL CTA ---- */
.final-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    text-align: center;
    position: relative;
    overflow: hidden;
}
.final-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0,180,216,0.2) 0%, transparent 60%);
}
.final-cta-content { position: relative; z-index: 1; }
.final-cta h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--white);
    margin-bottom: 16px;
}
.final-cta p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.7);
    max-width: 600px;
    margin: 0 auto 36px;
}
.final-cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 32px; }
.final-cta-trust {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}
.final-cta-trust span {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
    font-weight: 600;
}
.final-cta-trust i { color: var(--accent-light); margin-right: 6px; }

/* ---- FOOTER ---- */
.site-footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 64px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-top: 16px; }
.footer-logo { margin-bottom: 8px; }
.footer-logo .logo-text { color: var(--white); }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.08);
    color: var(--gray-400);
    border-radius: 50%;
    font-size: 0.9rem;
    transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); color: var(--white); }
.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 20px;
}
.footer-links ul li, .footer-contact ul li { margin-bottom: 10px; }
.footer-links a, .footer-contact a {
    font-size: 0.88rem;
    color: var(--gray-400);
    transition: var(--transition);
}
.footer-links a:hover, .footer-contact a:hover { color: var(--accent-light); }
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
}
.footer-contact li i { color: var(--accent); width: 16px; text-align: center; }
.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.78rem;
    color: var(--gray-500);
}
.footer-bottom a { color: var(--gray-400); }
.footer-bottom a:hover { color: var(--accent-light); }

/* ---- MOBILE STICKY CTA ---- */
.mobile-sticky-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    padding: 10px 12px;
    gap: 10px;
}
.mobile-cta-call,
.mobile-cta-book {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px;
    border-radius: var(--radius-sm);
    font-weight: 800;
    font-size: 0.9rem;
}
.mobile-cta-call {
    background: var(--primary);
    color: var(--white);
}
.mobile-cta-book {
    background: var(--cta);
    color: var(--white);
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

@media (max-width: 1100px) {
    .hero-inner { grid-template-columns: 1fr 380px; gap: 40px; }
    .authority-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-form-wrapper { max-width: 480px; }
    .services-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .reviews-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto 48px; }
    .areas-grid { grid-template-columns: 1fr; }
    .areas-map { order: -1; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .image-collage { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
    .collage-large { grid-column: span 2; }
    .steps-grid { flex-direction: column; align-items: center; }
    .step-connector { transform: rotate(90deg); padding: 0; }
}

@media (max-width: 768px) {
    .top-bar { display: none; }

    .main-nav {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        box-shadow: 0 8px 32px rgba(0,0,0,0.4);
        gap: 4px;
        z-index: 999;
    }
    .main-nav.active { display: flex; }
    .nav-dropdown { width: 100%; }
    .dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        background: rgba(255,255,255,0.05);
        padding: 4px 0 4px 16px;
    }
    .header-cta .btn-phone { display: none; }
    .mobile-toggle { display: flex; }

    .hero { padding: 60px 0 80px; min-height: auto; background-position: 40% 55%; }
    .hero::before {
        background:
            radial-gradient(ellipse at 50% 25%, rgba(8,20,60,0.80) 0%, transparent 70%),
            linear-gradient(to bottom, rgba(8,20,60,0.55) 0%, rgba(8,20,60,0.10) 50%, rgba(8,20,60,0.40) 100%);
    }
    .hero h1 { font-size: 2rem; }
    .hero-content { text-align: center; }
    .hero-badge { justify-content: center; }
    .hero-sub { margin-left: auto; margin-right: auto; }
    .hero-special { display: flex; justify-content: center; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .hero-trust-strip { justify-content: center; }
    .hero-form-wrapper { margin: 0 auto; }

    .authority-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .authority-card { padding: 16px 10px; }
    .authority-icon { width: 44px; height: 44px; font-size: 1rem; }

    .why-grid { grid-template-columns: 1fr; }
    .why-card { padding: 28px 24px; }

    .image-collage { grid-template-columns: 1fr 1fr; grid-auto-rows: 180px; }

    .mobile-sticky-cta { display: flex; }
    .site-footer { padding-bottom: 70px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero { padding: 40px 0 60px; }
    .hero h1 { font-size: 1.7rem; }
    .hero-badge { font-size: 0.72rem; padding: 6px 14px; }
    .hero-trust-strip { gap: 12px; }
    .trust-item { font-size: 0.75rem; }

    .authority-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .authority-card h4 { font-size: 0.75rem; }
    .authority-card p { font-size: 0.7rem; }

    .section-header h2 { font-size: 1.5rem; }

    .image-collage { grid-template-columns: 1fr; grid-auto-rows: 200px; }
    .collage-large { grid-column: span 1; }

    .stats-grid { grid-template-columns: 1fr; }
    .stat-number { font-size: 2.2rem; }

    .areas-columns { grid-template-columns: 1fr; }
}

/* ---- Animations ---- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero-content > * {
    animation: fadeInUp 0.6s ease-out both;
}
.hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.hero-content > *:nth-child(3) { animation-delay: 0.3s; }
.hero-content > *:nth-child(4) { animation-delay: 0.4s; }
.hero-content > *:nth-child(5) { animation-delay: 0.5s; }
.hero-content > *:nth-child(6) { animation-delay: 0.6s; }
.hero-form-card {
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

/* ============================================
   SERVICE PAGES
   ============================================ */

/* ---- Service Hero ---- */
.service-hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #0a4a8f 100%);
    padding: 40px 0 80px;
    overflow: hidden;
}
.service-hero-duct {
    background: url('PIC/air-duct.jpg') center center / cover no-repeat;
    position: relative;
}
.service-hero-duct::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(8,28,70,0.82) 0%, rgba(8,28,70,0.55) 55%, rgba(0,0,0,0.1) 100%);
    z-index: 0;
}
.service-hero-duct .container {
    position: relative;
    z-index: 1;
}
.service-hero-fire {
    background: linear-gradient(135deg, #1a1a2e 0%, var(--primary-dark) 50%, #16213e 100%);
}
.service-hero-uv {
    background: linear-gradient(135deg, #0a2342 0%, #1a3a6c 50%, #0b3d91 100%);
}
.service-hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 80%, rgba(0,180,216,0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(247,127,0,0.08) 0%, transparent 60%);
}
.service-hero-inner {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.service-hero-content { color: var(--white); }
.service-hero-content .hero-badge { margin-bottom: 20px; }
.service-hero-content h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 3rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.1;
}
.service-hero-content .hero-sub {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 24px;
    max-width: 540px;
}
.service-hero-content .hero-special { margin-bottom: 28px; }
.service-hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--gray-300);
    aspect-ratio: 4/3;
}
.service-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.5);
}
.breadcrumb a {
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb .current { color: var(--accent-light); }
.breadcrumb i { font-size: 0.6rem; }

/* Hero badge variants */
.hero-badge-danger { border-color: rgba(239,68,68,0.3); color: #fca5a5; }
.hero-badge-uv { border-color: rgba(96,165,250,0.3); color: var(--accent-light); }

/* Special badge variant */
.special-badge-uv {
    background: linear-gradient(135deg, var(--accent), #0096b7);
}

/* Authority grid 4-col */
.authority-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ---- Problem Section ---- */
.problem-section {
    padding: 100px 0;
    background: var(--white);
}
.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}
.problem-content .section-tag { margin-bottom: 16px; }
.problem-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    margin-bottom: 16px;
}
.problem-content > p {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 28px;
    line-height: 1.7;
}
.problem-content h3 {
    font-size: 1.05rem;
    font-weight: 800;
    margin-bottom: 16px;
    margin-top: 32px;
}
.text-danger { color: var(--danger); }

.problem-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 8px;
}
.problem-stat {
    text-align: center;
    padding: 20px 12px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}
.problem-stat-danger { border-color: rgba(239,68,68,0.2); background: #fef2f2; }
.problem-stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 6px;
}
.problem-stat-danger .problem-stat-number { color: var(--danger); }
.problem-stat-label {
    display: block;
    font-size: 0.78rem;
    color: var(--gray-500);
    line-height: 1.4;
}

.checklist li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    font-size: 0.92rem;
    color: var(--gray-700);
    font-weight: 500;
}
.checklist li i {
    color: var(--cta);
    margin-top: 4px;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.checklist-danger li i { color: var(--danger); }
.checklist-uv li i { color: var(--accent); }

.problem-images {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
.problem-img-main {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/3;
    object-fit: cover;
    background: var(--gray-200);
}
.problem-img-secondary {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    aspect-ratio: 16/9;
    object-fit: cover;
    background: var(--gray-200);
}

/* ---- Process Section ---- */
.process-section {
    padding: 100px 0;
    background: var(--gray-50);
}
.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.process-step {
    padding: 32px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    position: relative;
    transition: var(--transition);
}
.process-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.process-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(0,180,216,0.1);
    line-height: 1;
    margin-bottom: 8px;
}
.process-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(0,180,216,0.1), rgba(11,61,145,0.08));
    color: var(--accent);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    margin-bottom: 16px;
}
.process-step h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.process-step p { font-size: 0.88rem; color: var(--gray-500); line-height: 1.6; }

/* ---- Before & After ---- */
.before-after-section {
    padding: 100px 0;
    background: var(--white);
}
.ba-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 28px;
}
.ba-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.ba-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.ba-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
}
.ba-img {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--gray-200);
}
.ba-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.ba-label {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.ba-label-before {
    background: var(--danger);
    color: var(--white);
}
.ba-label-after {
    background: var(--success);
    color: var(--white);
}
.ba-info {
    padding: 20px 24px;
}
.ba-info strong {
    display: block;
    font-size: 0.92rem;
    color: var(--dark);
    margin-bottom: 4px;
}
.ba-info p {
    font-size: 0.85rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ---- Why Choose Section ---- */
.why-choose {
    padding: 100px 0;
    background: var(--gray-50);
}
.why-choose-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.why-choose-card {
    padding: 36px 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.why-choose-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.why-choose-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(0,180,216,0.1), rgba(11,61,145,0.08));
    color: var(--accent);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    margin-bottom: 20px;
}
.why-choose-icon-danger {
    background: linear-gradient(135deg, rgba(239,68,68,0.1), rgba(239,68,68,0.05));
    color: var(--danger);
}
.why-choose-icon-uv {
    background: linear-gradient(135deg, rgba(96,165,250,0.15), rgba(0,180,216,0.1));
    color: var(--accent);
}
.why-choose-card h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 10px; }
.why-choose-card p { font-size: 0.9rem; color: var(--gray-500); line-height: 1.7; margin-bottom: 16px; }
.why-choose-highlight {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(0,180,216,0.06);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent);
}

/* ---- Pricing Section ---- */
.pricing-section {
    padding: 100px 0;
    background: var(--white);
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 800px;
    margin: 0 auto;
}
.pricing-card {
    padding: 36px 32px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    text-align: center;
    position: relative;
}
.pricing-card-featured {
    background: var(--white);
    border-color: var(--cta);
    box-shadow: 0 0 0 3px rgba(247,127,0,0.1), var(--shadow-lg);
}
.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--cta);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 5px 20px;
    border-radius: 50px;
}
.pricing-card h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 12px; }
.pricing-amount { margin-bottom: 4px; }
.pricing-dollar {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    vertical-align: top;
}
.pricing-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--dark);
    line-height: 1;
}
.pricing-subtitle {
    font-size: 0.88rem;
    color: var(--gray-500);
    margin-bottom: 24px;
}
.pricing-features {
    text-align: left;
    margin-bottom: 20px;
}
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 0;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--gray-700);
}
.pricing-features li i { color: var(--success); font-size: 0.8rem; }
.pricing-note {
    font-size: 0.78rem;
    color: var(--gray-400);
    margin-bottom: 20px;
}

/* ---- Form Section (inline on service pages) ---- */
.form-section {
    padding: 100px 0;
    background: var(--gray-50);
}
.form-section-grid {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 56px;
    align-items: start;
}
.form-section-content .section-tag { margin-bottom: 16px; }
.form-section-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    margin-bottom: 16px;
}
.form-section-content > p {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 28px;
}
.form-section-benefits { margin-bottom: 28px; }
.form-benefit {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--gray-700);
}
.form-benefit i { color: var(--success); }
.form-section-phone {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}
.form-section-phone span { color: var(--gray-500); }
.form-section-phone a {
    font-weight: 800;
    color: var(--primary);
    font-size: 1.1rem;
}
.form-section-phone a i { margin-right: 6px; }

/* ---- Related Services ---- */
.related-services {
    padding: 80px 0;
    background: var(--white);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 700px;
    margin: 0 auto;
}
.related-card {
    text-align: center;
    padding: 36px 28px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.related-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    border-radius: 50%;
    font-size: 1.3rem;
    margin-bottom: 16px;
}
.related-card h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 8px; }
.related-card p { font-size: 0.88rem; color: var(--gray-500); margin-bottom: 20px; }

/* ---- Section Tag Variants ---- */
.section-tag-danger {
    background: linear-gradient(135deg, var(--danger), #b91c1c);
}
.section-tag-uv {
    background: linear-gradient(135deg, #3b82f6, var(--accent));
}

/* ---- Authority Icon Variants ---- */
.authority-icon-danger {
    background: linear-gradient(135deg, var(--danger), #b91c1c) !important;
}
.authority-icon-uv {
    background: linear-gradient(135deg, #3b82f6, var(--accent)) !important;
}

/* ---- UV Types Grid ---- */
.uv-types-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 800px;
    margin: 0 auto;
}
.uv-type-card {
    padding: 36px 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.uv-type-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.uv-type-card-premium {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0,180,216,0.1);
}
.uv-type-header {
    text-align: center;
    margin-bottom: 16px;
}
.uv-type-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    border-radius: 50%;
    font-size: 1.3rem;
    margin-bottom: 12px;
}
.uv-type-header h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 4px; }
.uv-type-price {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary);
}
.uv-type-desc {
    font-size: 0.88rem;
    color: var(--gray-500);
    margin-bottom: 20px;
    line-height: 1.6;
}
.uv-type-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--gray-700);
}
.uv-type-features li i { color: var(--success); font-size: 0.8rem; }
.uv-type-best {
    margin-top: 20px;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-dark);
    background: rgba(0,180,216,0.08);
    padding: 8px 16px;
    border-radius: 50px;
}

/* ============================================
   ABOUT PAGE
   ============================================ */

/* ---- About Hero ---- */
.about-hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: 60px 0 80px;
    text-align: center;
    overflow: hidden;
}
.about-hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 70%, rgba(0,180,216,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 30%, rgba(247,127,0,0.08) 0%, transparent 60%);
}
.about-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
}
.about-hero .breadcrumb { justify-content: center; margin-bottom: 24px; }
.about-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 3rem);
    color: var(--white);
    margin-bottom: 16px;
}
.about-hero .hero-sub {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    max-width: 600px;
    margin: 0 auto;
}

/* ---- About Stats Bar ---- */
.about-stats {
    background: var(--white);
    padding: 0;
    margin-top: -40px;
    position: relative;
    z-index: 2;
}
.about-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}
.about-stat {
    text-align: center;
    padding: 32px 20px;
    border-right: 1px solid var(--gray-100);
}
.about-stat:last-child { border-right: none; }
.about-stat-number {
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 6px;
}
.about-stat-label {
    font-size: 0.82rem;
    color: var(--gray-500);
    font-weight: 600;
    line-height: 1.4;
}

/* ---- About Story ---- */
.about-story {
    padding: 100px 0;
    background: var(--white);
}
.about-story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}
.about-story-content .section-tag { margin-bottom: 16px; }
.about-story-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    margin-bottom: 20px;
}
.about-story-content p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 16px;
}
.about-quote {
    margin-top: 28px;
    padding: 24px 28px;
    background: var(--gray-50);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.about-quote p {
    font-style: italic;
    font-size: 1rem;
    color: var(--gray-700);
    margin-bottom: 8px;
}
.about-quote cite {
    font-size: 0.85rem;
    color: var(--accent-dark);
    font-weight: 700;
    font-style: normal;
}

/* About Image Grid (Triple) */
.about-image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 16px;
}
.about-img-large {
    grid-column: span 2;
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 16/9;
    object-fit: cover;
    background: var(--gray-200);
}
.about-img-small {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    aspect-ratio: 4/3;
    object-fit: cover;
    background: var(--gray-200);
}

/* ---- About Values ---- */
.about-values {
    padding: 100px 0;
    background: var(--gray-50);
}
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.value-card {
    padding: 32px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.value-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(0,180,216,0.1), rgba(11,61,145,0.08));
    color: var(--accent);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    margin-bottom: 16px;
}
.value-card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.value-card p { font-size: 0.88rem; color: var(--gray-500); line-height: 1.7; }

/* ---- About Team ---- */
.about-team {
    padding: 100px 0;
    background: var(--white);
}
.about-team-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}
.about-team-content .section-tag { margin-bottom: 16px; }
.about-team-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2rem);
    margin-bottom: 16px;
}
.about-team-content > p {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 28px;
}
.team-qualifications { display: flex; flex-direction: column; gap: 20px; }
.team-qual {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.team-qual-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    flex-shrink: 0;
}
.team-qual strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 4px;
}
.team-qual p {
    font-size: 0.85rem;
    color: var(--gray-500);
    line-height: 1.6;
}
.about-team-image {
    position: relative;
}
.about-team-image > img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 3/4;
    object-fit: cover;
    background: var(--gray-200);
}
.about-team-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--primary);
    color: var(--white);
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.about-team-badge-inner {
    display: flex;
    align-items: center;
    gap: 12px;
}
.about-team-badge i { font-size: 1.5rem; color: var(--accent-light); }
.about-team-badge span {
    font-size: 0.78rem;
    line-height: 1.4;
    color: rgba(255,255,255,0.8);
}
.about-team-badge strong { color: var(--white); }

/* Authority Wall About Variant */
.authority-wall-about {
    padding: 100px 0;
    background: var(--gray-50);
}
.authority-grid-about {
    grid-template-columns: repeat(3, 1fr) !important;
}
.authority-card-large {
    padding: 28px 20px;
}
.authority-card-large p {
    font-size: 0.82rem;
}

/* ---- About Equipment ---- */
.about-equipment {
    padding: 100px 0;
    background: var(--white);
}
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.equipment-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    background: var(--gray-50);
    transition: var(--transition);
}
.equipment-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.equipment-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--gray-200);
}
.equipment-card h3 {
    font-size: 1.05rem;
    font-weight: 800;
    padding: 20px 20px 8px;
}
.equipment-card p {
    font-size: 0.85rem;
    color: var(--gray-500);
    padding: 0 20px 24px;
    line-height: 1.6;
}

/* ---- About Community ---- */
.about-community {
    padding: 100px 0;
    background: var(--gray-50);
}
.about-community-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}
.about-community-content .section-tag { margin-bottom: 16px; }
.about-community-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    margin-bottom: 16px;
}
.about-community-content > p {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 28px;
    line-height: 1.8;
}
.community-highlights { display: flex; flex-direction: column; gap: 14px; }
.community-item {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--gray-700);
}
.community-item i {
    color: var(--accent);
    font-size: 1rem;
    width: 20px;
    text-align: center;
}
.about-community-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/3;
    object-fit: cover;
    background: var(--gray-200);
}

/* ============================================
   SERVICE/ABOUT PAGE RESPONSIVE
   ============================================ */

@media (max-width: 1100px) {
    .service-hero-inner { grid-template-columns: 1fr 360px; gap: 36px; }
    .form-section-grid { grid-template-columns: 1fr 380px; gap: 36px; }
}

@media (max-width: 960px) {
    .service-hero-inner { grid-template-columns: 1fr; }
    .service-hero-image { max-width: 500px; }
    .problem-grid { grid-template-columns: 1fr; }
    .problem-images { order: -1; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .why-choose-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; }
    .form-section-grid { grid-template-columns: 1fr; }
    .form-section-form { max-width: 480px; }
    .related-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .uv-types-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    .about-story-grid { grid-template-columns: 1fr; }
    .about-story-images { order: -1; }
    .about-team-grid { grid-template-columns: 1fr; }
    .about-team-image { max-width: 400px; }
    .about-community-grid { grid-template-columns: 1fr; }
    .about-community-image { order: -1; max-width: 500px; }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
    .equipment-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .authority-grid-about { grid-template-columns: repeat(2, 1fr) !important; }
    .about-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .service-hero { padding: 30px 0 60px; }
    .service-hero-content h1 { font-size: 1.8rem; }
    .service-hero-content .hero-actions { flex-direction: column; }
    .service-hero-content .hero-actions .btn { width: 100%; justify-content: center; }
    .authority-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .problem-stats { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; }
    .ba-grid { grid-template-columns: 1fr; }
    .values-grid { grid-template-columns: 1fr; }
    .about-hero { padding: 40px 0 60px; }
    .about-hero h1 { font-size: 1.8rem; }
    .about-stats { margin-top: -30px; }
    .about-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .about-stat { padding: 24px 16px; }
    .about-stat-number { font-size: 1.8rem; }
    .about-team-badge { position: static; margin-top: 16px; border-radius: var(--radius-md); }
}

@media (max-width: 480px) {
    .service-hero-content h1 { font-size: 1.5rem; }
    .about-stats-grid { grid-template-columns: 1fr 1fr; }
    .about-stat-number { font-size: 1.5rem; }
    .authority-grid-about { grid-template-columns: 1fr !important; }
}

/* ---- Service Hero Animations ---- */
.service-hero-content > * {
    animation: fadeInUp 0.6s ease-out both;
}
.service-hero-content > *:nth-child(1) { animation-delay: 0.05s; }
.service-hero-content > *:nth-child(2) { animation-delay: 0.1s; }
.service-hero-content > *:nth-child(3) { animation-delay: 0.15s; }
.service-hero-content > *:nth-child(4) { animation-delay: 0.2s; }
.service-hero-content > *:nth-child(5) { animation-delay: 0.25s; }
.service-hero-content > *:nth-child(6) { animation-delay: 0.3s; }
.service-hero-image {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}
.about-hero-inner > * {
    animation: fadeInUp 0.6s ease-out both;
}
.about-hero-inner > *:nth-child(1) { animation-delay: 0.1s; }
.about-hero-inner > *:nth-child(2) { animation-delay: 0.2s; }
.about-hero-inner > *:nth-child(3) { animation-delay: 0.3s; }