/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
    /* Color Palette */
    --primary: #10B981;          /* Emerald Green (Eco) */
    --primary-hover: #059669;
    --primary-light: #ECFDF5;
    --secondary: #0F172A;        /* Slate Dark (Premium Navy) */
    --secondary-light: #1E293B;
    --accent: #3B82F6;           /* Electric Blue (Interactive Elements) */
    --accent-light: #EFF6FF;
    --warning: #F59E0B;          /* Amber Gold (Stars & Trust Badges) */
    
    /* Neutral Shades */
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --text-dark: #0F172A;
    --text-muted: #64748B;
    --text-light: #F1F5F9;
    --border-color: #E2E8F0;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    /* Shadow & Effects */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   RESET & GLOBAL STYLES
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--secondary);
    line-height: 1.25;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ==========================================================================
   REUSABLE UTILITIES & BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    gap: 8px;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 18px;
    border-radius: var(--radius-md);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

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

.btn-secondary:hover {
    background-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.3);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-block {
    display: flex;
    width: 100%;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, #10b9d1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sub-title {
    display: inline-block;
    color: var(--primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 4px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 18px;
}

/* ==========================================================================
   HEADER SECTION
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    z-index: 1000;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.site-header.scrolled {
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
    height: 70px;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

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

.logo-icon {
    font-size: 24px;
    color: white;
    background-color: var(--primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 22px;
    color: var(--secondary);
}

.logo-text .accent-text {
    color: var(--primary);
}

.nav-menu ul {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 16px;
    color: var(--secondary);
    padding: 8px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

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

.header-ctas {
    display: flex;
    align-items: center;
    gap: 20px;
}

.phone-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--secondary);
    font-size: 16px;
}

.phone-cta i {
    color: var(--primary);
    background-color: var(--primary-light);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phone-cta:hover {
    color: var(--primary);
}

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 3px;
    background-color: var(--secondary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    position: relative;
    padding: calc(var(--header-height) + 60px) 0 80px;
    background: linear-gradient(180deg, #F0FDFA 0%, #FFFFFF 100%);
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 1;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 620px;
}

.badge-container {
    margin-bottom: 24px;
}

.hero-badge {
    background-color: var(--primary-light);
    color: var(--primary-hover);
    padding: 8px 16px;
    border-radius: 100px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 6px rgba(16, 185, 129, 0.04);
}

.hero-badge i {
    color: var(--warning);
}

.hero-section h1 {
    font-size: 56px;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-features {
    display: flex;
    gap: 24px;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary);
}

.hero-feature-item i {
    color: var(--primary);
    background-color: var(--primary-light);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 8px solid white;
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.hero-image-card-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    background-color: var(--secondary);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 260px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-image-card-badge i {
    font-size: 28px;
    color: var(--primary);
}

.hero-image-card-badge h4 {
    color: white;
    font-size: 16px;
    margin-bottom: 2px;
}

.hero-image-card-badge p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

/* ==========================================================================
   STATS SECTION
   ========================================================================== */
.stats-section {
    padding: 60px 0;
    background-color: var(--secondary);
    color: white;
    position: relative;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    text-align: center;
    padding: 20px;
}

.stat-icon {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 16px;
}

.stat-number {
    font-size: 48px;
    color: white;
    font-family: var(--font-heading);
    margin-bottom: 8px;
    font-weight: 800;
}

.stat-label {
    color: var(--text-light);
    font-size: 15px;
    opacity: 0.8;
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services-section {
    padding: 100px 0;
    background-color: var(--bg-white);
}

.services-tabs-container {
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.tabs-nav {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 16px;
}

.tab-btn {
    background: transparent;
    border: none;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 18px;
    color: var(--text-muted);
    padding: 12px 24px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.tab-btn i {
    font-size: 16px;
}

.tab-btn:hover {
    color: var(--secondary);
}

.tab-btn.active {
    color: white;
    background-color: var(--primary);
    box-shadow: 0 6px 15px rgba(16, 185, 129, 0.2);
}

.tab-panel {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-panel.active {
    display: block;
}

.panel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.panel-text h3 {
    font-size: 32px;
    margin-bottom: 16px;
}

.panel-text p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.service-list {
    margin-bottom: 36px;
}

.service-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
    font-weight: 500;
}

.service-list li i {
    color: var(--primary);
    margin-top: 4px;
}

.btn-services-panel {
    padding: 14px 32px;
}

.panel-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.mini-service-card {
    background-color: var(--bg-white);
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid transparent;
}

.mini-service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.card-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 20px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.mini-service-card h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.mini-service-card p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.5;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   ESTIMATOR / PRICE CALCULATOR
   ========================================================================== */
.estimator-section {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.estimator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.estimator-info {
    max-width: 520px;
}

.estimator-info h2 {
    font-size: 40px;
    margin-bottom: 24px;
}

.estimator-info p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

/* Pure CSS Animated Box Truck Display */
.truck-graphic-container {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}

.truck-display {
    display: flex;
    align-items: flex-end;
    width: 100%;
    max-width: 380px;
    height: 120px;
    margin: 0 auto 10px;
    position: relative;
}

/* Cab styling */
.truck-cab {
    width: 70px;
    height: 70px;
    background-color: var(--secondary-light);
    border-radius: 0 16px 5px 0;
    position: relative;
    box-shadow: 2px 2px 5px rgba(0,0,0,0.1);
    z-index: 3;
}

.truck-cab::after {
    /* Front grill */
    content: '';
    position: absolute;
    right: 0;
    bottom: 8px;
    width: 6px;
    height: 16px;
    background-color: #cbd5e1;
    border-radius: 3px 0 0 3px;
}

.truck-window {
    width: 32px;
    height: 26px;
    background-color: #93c5fd;
    position: absolute;
    top: 12px;
    right: 10px;
    border-radius: 0 8px 2px 2px;
    border: 2px solid var(--secondary);
}

/* Bed styling */
.truck-bed {
    flex-grow: 1;
    height: 96px;
    background-color: #e2e8f0;
    border: 3px solid var(--secondary);
    border-radius: 8px 0 0 8px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    box-shadow: -2px 2px 5px rgba(0,0,0,0.05);
}

.truck-fill {
    position: absolute;
    left: 0;
    bottom: 0;
    top: 0;
    width: 0%; /* Dynamic fill */
    background: linear-gradient(90deg, var(--primary) 0%, #34d399 100%);
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.85;
}

.truck-text {
    position: relative;
    z-index: 4;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 14px;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
}

/* Wheels */
.truck-display::before,
.truck-display::after {
    content: '';
    position: absolute;
    bottom: -12px;
    width: 28px;
    height: 28px;
    background-color: var(--secondary);
    border: 4px solid #94a3b8;
    border-radius: 50%;
    z-index: 4;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.truck-display::before {
    left: 48px;
}

.truck-display::after {
    right: 24px;
}

.truck-labels {
    display: flex;
    justify-content: space-between;
    padding: 0 10px 0 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
}

.estimator-notice {
    display: flex;
    gap: 12px;
    background-color: rgba(59, 130, 246, 0.05);
    border-left: 4px solid var(--accent);
    padding: 16px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.estimator-notice i {
    color: var(--accent);
    font-size: 18px;
    margin-top: 2px;
}

.estimator-notice p {
    font-size: 14px;
    color: var(--secondary-light);
    line-height: 1.5;
    margin-bottom: 0;
}

/* Calculator Card */
.calculator-card {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.calculator-card h3 {
    font-size: 24px;
    margin-bottom: 6px;
}

.calc-sub {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.item-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.calc-item {
    background-color: var(--bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}

.calc-item:hover {
    border-color: rgba(16, 185, 129, 0.4);
    background-color: var(--primary-light);
}

.calc-item.selected {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.item-visual {
    width: 44px;
    height: 44px;
    background-color: var(--bg-white);
    color: var(--secondary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.calc-item.selected .item-visual {
    background-color: var(--primary);
    color: white;
}

.item-name {
    font-weight: 700;
    font-size: 14px;
    color: var(--secondary);
    margin-bottom: 4px;
}

.item-price {
    font-size: 13px;
    color: var(--primary-hover);
    font-weight: 800;
    margin-bottom: 12px;
}

.quantity-controls {
    display: flex;
    align-items: center;
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    overflow: hidden;
    pointer-events: auto;
}

.qty-btn {
    border: none;
    background-color: transparent;
    width: 28px;
    height: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-dark);
}

.qty-btn:hover {
    background-color: var(--bg-light);
    color: var(--primary);
}

.qty-val {
    padding: 0 8px;
    font-weight: 700;
    font-size: 13px;
    min-width: 20px;
}

.volume-slider-container {
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    margin-bottom: 24px;
}

.volume-slider-container label {
    display: block;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--secondary);
}

.slider-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
}

.range-slider {
    flex-grow: 1;
    -webkit-appearance: none;
    height: 8px;
    border-radius: 5px;
    background: #cbd5e1;
    outline: none;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-percentage {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 18px;
    color: var(--primary);
    min-width: 50px;
    text-align: right;
}

.price-display-card {
    background-color: var(--secondary);
    color: white;
    padding: 30px;
    border-radius: var(--radius-md);
    text-align: center;
}

.price-header {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 13px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 4px;
}

.price-amount {
    font-family: var(--font-heading);
    font-size: 44px;
    font-weight: 800;
    color: white;
    margin-bottom: 8px;
    transition: var(--transition);
}

.price-breakdown {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 24px;
}

/* ==========================================================================
   ABOUT / ECO-PROMISE SECTION
   ========================================================================== */
.about-section {
    padding: 100px 0;
    background-color: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 60px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-card-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.about-floating-card {
    position: absolute;
    bottom: 24px;
    right: 24px;
    left: 24px;
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 16px;
}

.about-floating-card .icon-circle {
    width: 44px;
    height: 44px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.about-floating-card h4 {
    font-size: 16px;
    margin-bottom: 2px;
}

.about-floating-card p {
    font-size: 13px;
    color: var(--text-muted);
}

.about-content h2 {
    font-size: 40px;
    margin-bottom: 24px;
}

.about-content p {
    color: var(--text-muted);
    font-size: 17px;
    margin-bottom: 36px;
}

.promise-points {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.promise-item {
    display: flex;
    gap: 20px;
}

.promise-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.promise-item h4 {
    font-size: 18px;
    margin-bottom: 4px;
}

.promise-item p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 0;
    line-height: 1.5;
}

/* ==========================================================================
   TESTIMONIALS SECTION
   ========================================================================== */
.testimonials-section {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
}

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

.stars {
    color: var(--warning);
    margin-bottom: 20px;
    font-size: 14px;
}

.testi-text {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-dark);
    font-style: italic;
    margin-bottom: 30px;
}

.testi-author {
    display: flex;
    align-items: center;
    gap: 14px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
}

.testi-author h4 {
    font-size: 16px;
    margin-bottom: 2px;
}

.testi-author .author-title {
    font-size: 12px;
    color: var(--text-muted);
}

/* ==========================================================================
   FAQ SECTION (ACCORDION)
   ========================================================================== */
.faq-section {
    padding: 100px 0;
    background-color: var(--bg-white);
}

.faq-wrapper {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
}

.faq-header-content h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.faq-header-content p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

.faq-cta-box {
    background-color: var(--secondary);
    color: white;
    padding: 30px;
    border-radius: var(--radius-md);
}

.faq-cta-box h4 {
    color: white;
    font-size: 20px;
    margin-bottom: 8px;
}

.faq-cta-box p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 20px;
    opacity: 0.8;
}

.accordion-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.accordion-item {
    background-color: var(--bg-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition);
}

.accordion-trigger {
    width: 100%;
    padding: 24px;
    background: transparent;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary);
    transition: var(--transition);
}

.accordion-trigger i {
    font-size: 14px;
    transition: transform 0.3s ease;
    color: var(--primary);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    padding: 0 24px;
}

.accordion-content p {
    padding-bottom: 24px;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
}

.accordion-item.active {
    background-color: var(--primary-light);
}

.accordion-item.active .accordion-trigger {
    color: var(--primary-hover);
}

.accordion-item.active .accordion-trigger i {
    transform: rotate(45deg);
}

.accordion-item.active .accordion-content {
    max-height: 300px;
    transition: max-height 0.35s cubic-bezier(1, 0, 1, 0);
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-section {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.contact-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    overflow: hidden;
}

.contact-info-panel {
    background-color: var(--secondary);
    color: white;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-info-panel h2 {
    color: white;
    font-size: 36px;
    margin-bottom: 16px;
}

.contact-info-panel p {
    color: var(--text-light);
    opacity: 0.8;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.contact-detail-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.detail-icon {
    width: 44px;
    height: 44px;
    background-color: var(--secondary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-detail-item h5 {
    color: rgba(255,255,255,0.6);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contact-detail-item a,
.contact-detail-item p {
    color: white;
    font-size: 18px;
    font-family: var(--font-heading);
    font-weight: 600;
}

.contact-detail-item a:hover {
    color: var(--primary);
}

.service-map-outline {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
}

.badge-mini {
    display: inline-block;
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--primary);
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 100px;
    margin-bottom: 10px;
}

.service-map-outline p {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    line-height: 1.5;
    margin-bottom: 0;
}

/* Contact Form Panel */
.contact-form-panel {
    padding: 60px;
}

.contact-form-panel h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-weight: 700;
    font-size: 13px;
    color: var(--secondary-light);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group label .required {
    color: #ef4444;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 16px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px 14px 44px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 15px;
    background-color: var(--bg-light);
    outline: none;
    color: var(--text-dark);
    transition: var(--transition);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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;
    background-size: 16px;
    cursor: pointer;
}

.form-group textarea {
    padding: 14px 16px;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background-color: white;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.form-group.invalid input,
.form-group.invalid textarea {
    border-color: #ef4444;
    background-color: #fef2f2;
}

.error-msg {
    display: none;
    color: #ef4444;
    font-size: 12px;
    font-weight: 600;
    margin-top: 6px;
}

.form-group.invalid .error-msg {
    display: block;
}

/* File Upload Zone styling */
.file-upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-sm);
    padding: 24px;
    text-align: center;
    background-color: var(--bg-light);
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}

.file-upload-zone:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 5;
}

.upload-content i {
    font-size: 32px;
    color: var(--text-muted);
    margin-bottom: 12px;
    transition: var(--transition);
}

.file-upload-zone:hover .upload-content i {
    color: var(--primary);
    transform: translateY(-2px);
}

.upload-content p {
    font-weight: 700;
    font-size: 14px;
    color: var(--secondary);
    margin-bottom: 4px;
}

.upload-content p span {
    color: var(--primary);
    text-decoration: underline;
}

.file-hint {
    font-size: 11px;
    color: var(--text-muted);
}

/* File preview layout */
.file-preview-container {
    display: none; /* Controlled by JS */
    align-items: center;
    gap: 16px;
    text-align: left;
    position: relative;
    z-index: 6;
}

#file-preview-img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.file-details {
    flex-grow: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-name {
    font-weight: 700;
    font-size: 13px;
    color: var(--secondary);
    max-width: 180px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.remove-file-btn {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.remove-file-btn:hover {
    background-color: #ef4444;
    color: white;
}

/* Form Submit button states */
.btn-submit {
    font-size: 18px;
    font-family: var(--font-heading);
    padding: 16px;
    position: relative;
}

.btn-submit.loading .btn-text {
    visibility: hidden;
    opacity: 0;
}

.loader {
    display: none;
    position: absolute;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

.btn-submit.loading .loader {
    display: block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Feedback alert blocks */
.form-feedback {
    display: none;
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 600;
    align-items: center;
    gap: 12px;
}

.form-feedback.error {
    background-color: #fef2f2;
    color: #ef4444;
    border-left: 4px solid #ef4444;
}

.form-feedback.success {
    background-color: #f0fdf4;
    color: #15803d;
    border-left: 4px solid #16a34a;
    flex-direction: column;
    text-align: center;
    padding: 40px 20px;
}

.form-feedback.success h4 {
    color: #16a34a;
    font-size: 20px;
    margin: 16px 0 8px;
}

.form-feedback.success p {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 0;
    line-height: 1.5;
}

/* Animated Success Checkmark */
.success-animation {
    width: 60px;
    height: 60px;
}

.checkmark-circle {
    width: 60px;
    height: 60px;
    border: 3px solid #16a34a;
    border-radius: 50%;
    position: relative;
    box-shadow: 0 4px 10px rgba(22, 163, 74, 0.1);
}

.checkmark {
    display: block;
}

.checkmark.draw::after {
    animation-duration: 800ms;
    animation-timing-function: ease;
    animation-name: checkmark;
    transform: scaleX(-1) rotate(135deg);
}

.checkmark::after {
    opacity: 1;
    height: 30px;
    width: 15px;
    transform-origin: left top;
    border-right: 4px solid #16a34a;
    border-top: 4px solid #16a34a;
    content: '';
    left: 14px;
    top: 28px;
    position: absolute;
}

@keyframes checkmark {
    0% { height: 0; width: 0; opacity: 1; }
    20% { height: 0; width: 15px; opacity: 1; }
    40% { height: 30px; width: 15px; opacity: 1; }
    100% { height: 30px; width: 15px; opacity: 1; }
}

/* ==========================================================================
   FOOTER SECTION
   ========================================================================== */
.site-footer {
    background-color: var(--secondary);
    color: white;
    padding: 80px 0 0;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1.8fr;
    gap: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 360px;
}

.footer-logo .logo-text {
    color: white;
}

.footer-desc {
    color: rgba(255,255,255,0.7);
    font-size: 15px;
    margin: 24px 0;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 38px;
    height: 38px;
    background-color: rgba(255,255,255,0.06);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    border: 1px solid rgba(255,255,255,0.1);
}

.social-links a:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-link-col h4 {
    color: white;
    font-size: 18px;
    margin-bottom: 24px;
    position: relative;
    display: inline-block;
}

.footer-link-col h4::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: var(--primary);
}

.footer-link-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link-col ul li a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.footer-link-col ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-contact-info li {
    display: flex;
    gap: 12px;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.footer-contact-info li i {
    color: var(--primary);
    margin-top: 4px;
}

.footer-contact-info li a {
    color: rgba(255,255,255,0.7);
}

.footer-contact-info li a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding: 30px 0;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

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

.footer-legal-links {
    display: flex;
    gap: 20px;
}

.footer-legal-links a {
    color: rgba(255,255,255,0.5);
}

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

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVENESS)
   ========================================================================== */
@media (max-width: 1100px) {
    .hero-section h1 {
        font-size: 46px;
    }
    .panel-grid {
        gap: 30px;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    .footer-brand {
        max-width: 100%;
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }
    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-features {
        justify-content: center;
    }
    .hero-image-wrapper {
        max-width: 550px;
        margin: 0 auto;
        width: 100%;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .panel-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .estimator-wrapper {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    .estimator-info {
        max-width: 100%;
        text-align: center;
    }
    .estimator-notice {
        text-align: left;
    }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    .faq-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .contact-card {
        grid-template-columns: 1fr;
    }
    .contact-info-panel {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    /* Sticky header mobile transition */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--bg-white);
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        padding: 40px 24px;
        transition: var(--transition);
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 24px;
        align-items: center;
    }

    .nav-link {
        font-size: 20px;
    }

    .header-ctas .phone-cta,
    .header-ctas .btn-header {
        display: none; /* Hide on small screen header to save space, but show in hamburger or contact section */
    }

    .hero-section h1 {
        font-size: 38px;
    }
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .hero-features {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .services-tabs-container {
        padding: 24px 16px;
    }
    .tabs-nav {
        flex-wrap: wrap;
        gap: 10px;
    }
    .tab-btn {
        font-size: 15px;
        padding: 8px 16px;
        flex-grow: 1;
        justify-content: center;
    }
    .panel-cards-grid {
        grid-template-columns: 1fr;
    }

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

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

    .contact-form-panel {
        padding: 30px 20px;
    }
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .footer-links-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-bottom-container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 18px;
    }
    .hero-badge {
        font-size: 11px;
    }
    .hero-section h1 {
        font-size: 32px;
    }
    .hero-img {
        height: 280px;
    }
    .hero-image-card-badge {
        left: 12px;
        right: 12px;
        bottom: 12px;
        padding: 12px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .stat-number {
        font-size: 38px;
    }
    .about-img {
        height: 320px;
    }
    .price-amount {
        font-size: 34px;
    }
}