/* ===================================
   Berthoud Plumbing & Drains
   Ocean Blue Theme (#0369A1, #075985, #0EA5E9, #38BDF8)
   Fonts: Poppins (headings), Open Sans (body)
   =================================== */

/* CSS Variables */
:root {
    --color-primary: #0369A1;
    --color-primary-dark: #075985;
    --color-primary-light: #0EA5E9;
    --color-accent: #38BDF8;
    --color-white: #FFFFFF;
    --color-gray-50: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-600: #475569;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;
    
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-gray-900);
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.btn-white:hover {
    background-color: var(--color-gray-50);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.logo img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-gray-900);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: 2rem;
    max-width: 90%;
}

.hero-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-card {
    background: var(--color-white);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.hero-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

.hero-card-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.hero-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.hero-card p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: 1.5rem;
    box-shadow: var(--shadow-xl);
}

.hero-cta {
    margin-top: 2rem;
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
}

/* Services Section */
.services {
    padding: 80px 0;
    background-color: var(--color-white);
}

.services-scroll-container {
    position: relative;
}

.services-scroll {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) var(--color-gray-200);
    padding: 1rem 0.5rem 2rem;
}

.services-scroll::-webkit-scrollbar {
    height: 8px;
}

.services-scroll::-webkit-scrollbar-track {
    background: var(--color-gray-200);
    border-radius: 4px;
}

.services-scroll::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

.service-card {
    flex: 0 0 350px;
    scroll-snap-align: start;
    background: var(--color-white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--color-gray-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1.25rem;
    color: var(--color-gray-600);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 500;
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 0.75rem;
}

.about-image img {
    border-radius: 1.5rem;
    box-shadow: var(--shadow-xl);
}

/* Problems Section */
.problems {
    padding: 80px 0;
    background-color: var(--color-white);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.problem-card {
    background: var(--color-gray-50);
    border-radius: 1rem;
    padding: 2rem;
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.problem-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

.problem-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.3;
    margin-bottom: 0.5rem;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

.problem-card p {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* Locations Section */
.locations {
    padding: 80px 0;
    background-color: var(--color-gray-50);
}

.locations-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.location-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    background: var(--color-white);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.location-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.location-image {
    border-radius: 0.75rem;
    overflow: hidden;
    height: 150px;
}

.location-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.location-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-primary);
}

.location-content p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background-color: var(--color-white);
}

.faq-tabs {
    max-width: 900px;
    margin: 0 auto;
}

.faq-tab-buttons {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.faq-tab-btn {
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    background: var(--color-gray-100);
    border: 2px solid transparent;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-gray-600);
}

.faq-tab-btn:hover {
    background: var(--color-gray-200);
}

.faq-tab-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.faq-tab-panel {
    display: none;
}

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

.faq-item {
    margin-bottom: 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-accent);
}

.faq-item.active {
    border-color: var(--color-primary);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background: var(--color-white);
    border: none;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-align: left;
    color: var(--color-gray-900);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

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

.faq-answer p {
    padding: 0 1.25rem 1.25rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    color: var(--color-white);
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.cta-buttons {
    margin-bottom: 1.5rem;
}

.cta-address {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
}

/* Footer */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 1rem;
    border-radius: 0.5rem;
}

.footer-brand p {
    line-height: 1.7;
}

.footer h4 {
    color: var(--color-white);
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
}

.footer-contact p {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.footer-contact a {
    color: var(--color-accent);
    transition: color var(--transition-fast);
}

.footer-contact a:hover {
    color: var(--color-white);
}

.footer-links li,
.footer-service-areas li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--color-gray-300);
    transition: color var(--transition-fast);
}

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

.footer-disclaimer {
    border-top: 1px solid var(--color-gray-800);
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.footer-disclaimer p {
    font-size: 0.75rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-800);
    padding: 1.5rem 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInBottom {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease forwards;
}

.slide-in-right {
    animation: slideInRight 0.6s ease forwards;
}

.slide-in-bottom {
    animation: slideInBottom 0.6s ease forwards;
}

/* Border Highlight Animation */
.border-highlight {
    position: relative;
}

.border-highlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    border: 2px solid transparent;
    transition: border-color var(--transition-base);
    pointer-events: none;
}

.border-highlight:hover::before {
    border-color: var(--color-accent);
}

/* Scroll Animation Classes */
.animate-on-scroll {
    opacity: 0;
}

.animate-on-scroll.animated {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-grid,
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-cards {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .problems-grid {
        grid-template-columns: 1fr;
    }
    
    .location-item {
        grid-template-columns: 1fr;
    }
    
    .location-image {
        height: 200px;
    }
    
    .faq-tab-buttons {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cta-content h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-content h1 {
        font-size: 1.75rem;
    }
    
    .service-card {
        flex: 0 0 300px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .header,
    .cta,
    .footer {
        display: none;
    }
    
    .hero,
    .services,
    .about,
    .problems,
    .locations,
    .faq {
        padding: 2rem 0;
    }
}