/* ============================================
   POOLER HVAC SOLUTION - MAIN STYLESHEET
   ============================================ */

/* CSS Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #0057B8;
    --secondary-orange: #FF7A00;
    --dark-blue: #003d82;
    --light-blue: #1a6dd4;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --border-gray: #dee2e6;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.top-bar {
    background: var(--primary-blue);
    color: var(--white);
    padding: 10px 0;
    font-size: 14px;
}

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

.top-bar-left {
    display: flex;
    gap: 30px;
}

.top-bar a {
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo span {
    color: var(--secondary-orange);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-orange);
    transition: width 0.3s ease;
}

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

.nav-cta {
    background: var(--secondary-orange);
    color: var(--white);
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,87,184,0.3);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    transition: all 0.3s ease;
}

/* Dropdown Menu Styles */
.nav-links li {
    position: relative;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    border-radius: 5px;
    margin-top: 8px;
    z-index: 1000;
}

.nav-links li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown a {
    display: block;
    padding: 12px 20px;
    color: var(--text-dark);
    font-weight: 500;
    border-bottom: 1px solid var(--light-gray);
}

.dropdown a:last-child {
    border-bottom: none;
}

.dropdown a:hover {
    background: var(--light-gray);
    color: var(--primary-blue);
}

.dropdown a:after {
    display: none;
}

.has-dropdown > a {
    display: flex;
    align-items: center;
    gap: 5px;
}

.has-dropdown > a:after {
    content: '▼';
    font-size: 10px;
    margin-left: 5px;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="rgba(255,122,0,0.1)"/></svg>');
    background-size: 200px;
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-text h1 span {
    color: var(--secondary-orange);
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.hero-feature:before {
    content: '✓';
    width: 24px;
    height: 24px;
    background: var(--secondary-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    font-size: 16px;
}

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

.btn-primary:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,122,0,0.3);
}

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

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

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

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

/* ============================================
   CONTAINER & SECTIONS
   ============================================ */

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

section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-weight: 700;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   SERVICES GRID
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,87,184,0.15);
    border-color: var(--secondary-orange);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--light-blue));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--white);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-card .btn {
    width: 100%;
}

/* ============================================
   STATS SECTION
   ============================================ */

.stats {
    background: var(--light-gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--secondary-orange);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 500;
}

/* ============================================
   COMPARISON TABLE
   ============================================ */

.comparison-table {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-gray);
}

.comparison-table th {
    background: var(--primary-blue);
    color: var(--white);
    font-weight: 600;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover {
    background: var(--light-gray);
}

.check {
    color: #28a745;
    font-weight: 700;
}

.cross {
    color: #dc3545;
    font-weight: 700;
}

/* ============================================
   PROCESS STEPS
   ============================================ */

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.process-step {
    position: relative;
    padding: 30px;
    background: var(--light-gray);
    border-radius: 10px;
    border-left: 4px solid var(--secondary-orange);
}

.process-step-number {
    position: absolute;
    top: -15px;
    left: 20px;
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}

.process-step h3 {
    color: var(--primary-blue);
    margin-bottom: 10px;
    margin-top: 15px;
}

.process-step p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ============================================
   PRICE RANGE
   ============================================ */

.price-range {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    margin: 40px 0;
}

.price-range h3 {
    font-size: 28px;
    margin-bottom: 15px;
}

.price-amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--secondary-orange);
    margin: 20px 0;
}

.price-range p {
    font-size: 16px;
    opacity: 0.9;
}

/* ============================================
   FAQ SECTION
   ============================================ */

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

.faq-item {
    background: var(--white);
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    overflow: hidden;
}

.faq-question {
    padding: 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--primary-blue);
    background: var(--light-gray);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.faq-toggle {
    font-size: 24px;
    font-weight: 700;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 25px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 25px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   SYMPTOMS LIST
   ============================================ */

.symptoms-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.symptom-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: var(--light-gray);
    border-radius: 8px;
    border-left: 3px solid var(--secondary-orange);
}

.symptom-icon {
    width: 30px;
    height: 30px;
    background: var(--secondary-orange);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 700;
}

.symptom-item p {
    color: var(--text-dark);
    font-weight: 500;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
    background: linear-gradient(135deg, var(--secondary-orange) 0%, #e66900 100%);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}

.cta-section h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
}

.cta-feature:before {
    content: '★';
    font-size: 24px;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-about h3 {
    color: var(--secondary-orange);
    margin-bottom: 15px;
}

.footer-about p {
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-links h4 {
    color: var(--secondary-orange);
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--secondary-orange);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumbs {
    padding: 20px 0;
    background: var(--light-gray);
}

.breadcrumbs ul {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumbs li:not(:last-child):after {
    content: '›';
    margin-left: 10px;
    color: var(--text-light);
}

.breadcrumbs a {
    color: var(--primary-blue);
}

.breadcrumbs a:hover {
    color: var(--secondary-orange);
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 40px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-gray);
    border-radius: 5px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

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

.contact-info h3 {
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
    padding: 20px;
    background: var(--light-gray);
    border-radius: 8px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-details h4 {
    color: var(--primary-blue);
    margin-bottom: 5px;
}

.contact-details p {
    color: var(--text-light);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .comparison-table {
        overflow-x: auto;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 250px;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        align-items: flex-start;
    }

    .nav-links.active {
        right: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    /* Mobile Dropdown Styles */
    .has-dropdown .dropdown {
        position: static;
        box-shadow: none;
        margin-top: 0;
        margin-left: 20px;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .has-dropdown.open .dropdown {
        max-height: 500px;
    }

    .has-dropdown > a:after {
        content: '▼';
        font-size: 10px;
        margin-left: 5px;
        transition: transform 0.3s ease;
    }

    .has-dropdown.open > a:after {
        transform: rotate(180deg);
    }

    .dropdown a {
        padding: 10px 15px;
        font-size: 14px;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 50px 0;
    }

    .hero-text h1 {
        font-size: 28px;
    }

    .hero-text p {
        font-size: 16px;
    }

    .hero-features {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    section {
        padding: 50px 0;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .section-header p {
        font-size: 16px;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
    }

    .top-bar .container {
        flex-direction: column;
        gap: 10px;
    }

    .top-bar-left {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .cta-features {
        flex-direction: column;
        gap: 20px;
    }

    .cta-section h2 {
        font-size: 28px;
    }

    .price-amount {
        font-size: 36px;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.mt-20 {
    margin-top: 20px;
}

.mt-40 {
    margin-top: 40px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-40 {
    margin-bottom: 40px;
}

.bg-gray {
    background: var(--light-gray);
}

.highlight {
    color: var(--secondary-orange);
    font-weight: 600;
}