/* 
313 Local Duct Cleaning - Professional SEO Powerhouse Design System
Advanced, modern, sales-attractive design
*/

/* ═══════════════════════════════════════════
   GLOBAL VARIABLES & RESET
   ═══════════════════════════════════════════ */

:root {
    /* Primary Colors - Professional Palette */
    --primary-blue: #003D82;
    --primary-blue-dark: #002852;
    --primary-blue-light: #0052AB;
    --accent-orange: #FF7828;
    --accent-orange-dark: #E65A10;
    --accent-orange-light: #FF9A5E;

    /* Neutrals */
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --light-gray: #E9ECEF;
    --medium-gray: #6C757D;
    --dark-gray: #343A40;
    --black: #000000;

    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #003D82 0%, #0052AB 100%);
    --gradient-accent: linear-gradient(135deg, #FF7828 0%, #FF9A5E 100%);
    --gradient-hero: linear-gradient(135deg, rgba(0, 61, 130, 0.95) 0%, rgba(0, 82, 171, 0.90) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.2);

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ═══════════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════════ */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-blue-dark);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1.1rem;
}

p {
    margin-bottom: var(--spacing-md);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.lead {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: 400;
    color: var(--medium-gray);
    line-height: 1.6;
}

strong {
    font-weight: 600;
}

/* ═══════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-lg {
    padding: clamp(3rem, 8vw, 6rem) 0;
}

.section-alt {
    background: var(--off-white);
}

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

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

.text-right {
    text-align: right;
}

/* ═══════════════════════════════════════════
   TOP BAR
   ═══════════════════════════════════════════ */

.top-bar {
    background: var(--primary-blue-dark);
    color: var(--white);
    padding: var(--spacing-xs) 0;
    font-size: 0.9375rem;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.top-bar-info {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.top-bar a {
    color: var(--white);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.top-bar a:hover {
    color: var(--accent-orange-light);
}

.top-bar-cta {
    background: var(--gradient-accent);
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.top-bar-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 120, 40, 0.3);
    color: var(--white) !important;
}

/* ═══════════════════════════════════════════
   HEADER & NAVIGATION
   ═══════════════════════════════════════════ */

.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-lg);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-link {
    color: var(--dark-gray);
    text-decoration: none;
    padding: 0.625rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-blue);
    background: rgba(0, 61, 130, 0.05);
}

.nav-link.active {
    color: var(--primary-blue);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ═══════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════ */

.hero {
    background: var(--gradient-hero);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero h1 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero .lead {
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.badge {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.625rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

.badge:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.badge-icon {
    font-size: 1.25rem;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(255, 120, 40, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(255, 120, 40, 0.4);
    transform: translateY(-2px);
}

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

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

.btn-orange {
    background: var(--gradient-accent);
    color: var(--white);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* ═══════════════════════════════════════════
   CARDS & SERVICE GRID
   ═══════════════════════════════════════════ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--light-gray);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.service-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.service-features {
    list-style: none;
    margin: var(--spacing-md) 0;
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--dark-gray);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
    font-size: 1.25rem;
}

/* ═══════════════════════════════════════════
   TRUST SECTION
   ═══════════════════════════════════════════ */

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.trust-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base);
}

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

.trust-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin: var(--spacing-sm) 0;
}

/* ═══════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════ */

.contact-form {
    max-width: 600px;
    margin: var(--spacing-xl) auto;
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-gray);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 61, 130, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-submit {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */

.footer {
    background: var(--primary-blue-dark);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

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

.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

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

.footer-section li {
    margin-bottom: 0.625rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* ═══════════════════════════════════════════
   STICKY PHONE BUTTON
   ═══════════════════════════════════════════ */

.sticky-phone {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
    animation: pulse 2s infinite;
}

.sticky-phone a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(255, 120, 40, 0.4);
    transition: all var(--transition-base);
}

.sticky-phone a:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(255, 120, 40, 0.5);
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

/* ═══════════════════════════════════════════
   TESTIMONIALS
   ═══════════════════════════════════════════ */

.testimonial {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-orange);
}

.stars {
    color: var(--warning);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-style: italic;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 1.125rem;
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .sticky-phone {
        bottom: 1rem;
        right: 1rem;
    }

    .sticky-phone a {
        padding: 0.875rem 1.25rem;
        font-size: 0.9375rem;
    }

    /* CRITICAL: Contact page mobile fixes */
    .contact-sidebar {
        grid-template-columns: 1fr !important;
        gap: 2rem;
    }

    .contact-sidebar>div {
        max-width: 100% !important;
    }

    /* CRITICAL: Reviews page stats mobile fixes */
    .reviews-header-stats {
        flex-direction: column !important;
        text-align: center !important;
        gap: 1.5rem !important;
    }

    .reviews-header-stats>div {
        min-width: auto !important;
        width: 100% !important;
    }

    /* Ensure all 2-column grids stack on mobile */
    .grid-2-col,
    .two-column-layout,
    .side-by-side {
        grid-template-columns: 1fr !important;
        display: flex !important;
        flex-direction: column !important;
    }

    /* Images responsive */
    img {
        max-width: 100%;
        height: auto;
    }

    /* Adjust font sizes for mobile */
    h1 {
        font-size: 2rem !important;
    }

    h2 {
        font-size: 1.75rem !important;
    }

    .lead {
        font-size: 1.125rem !important;
    }
}

/* ═══════════════════════════════════════════
   SERVICE AREA CITIES
   ═══════════════════════════════════════════ */

.cities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.city-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid #eef2f7;
    position: relative;
    overflow: hidden;
}

.city-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.city-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(52, 144, 220, 0.15);
    border-color: var(--primary-blue);
}

.city-card .city-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.city-card h4 {
    margin: 0.5rem 0 0.25rem;
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 600;
}

.city-card p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--medium-gray);
}

.service-area-header {
    text-align: center;
    margin-bottom: 3rem;
}

.service-area-header .badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(0, 61, 130, 0.1), rgba(0, 82, 171, 0.1));
    color: var(--primary-blue);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
/* Logo Image Styling */
.logo img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

/* Success Message Styling */
.success-message {
    display: none;
    background: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    text-align: center;
    border: 1px solid #c3e6cb;
}