/* Water Heater Plan - Minimalist Modern Design (Direction 1) */
/* Colors: Teal #00A5A5, Navy #003366, White/Light Gray */
/* Fonts: Inter/Montserrat for headings, Roboto for body */

:root {
    --primary-teal: #00A5A5;
    --primary-navy: #003366;
    --accent-light: #00C9C9;
    --bg-white: #FFFFFF;
    --bg-light-gray: #F9FAFB;
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --border-gray: #E5E7EB;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-navy);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
}

a {
    text-decoration: none;
    color: var(--primary-teal);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-light);
}

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

/* Header & Navigation */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 2rem;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-navy);
}

.logo-icon {
    font-size: 2rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-teal);
}

.btn-nav {
    background-color: var(--primary-teal);
    color: var(--bg-white) !important;
    padding: 0.5rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
}

.btn-nav:hover {
    background-color: var(--accent-light);
    color: var(--bg-white) !important;
}

.qr-code-header img {
    display: block;
    border-radius: 4px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

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

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

.btn-primary:hover {
    background-color: var(--accent-light);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

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

/* Hero Section */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-teal) 100%);
    color: var(--bg-white);
    padding: 8rem 0 6rem;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><path d="M50 10 Q 30 30 50 50 T 50 90" stroke="rgba(255,255,255,0.1)" fill="none" stroke-width="2"/></svg>');
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 51, 102, 0.1);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--bg-white);
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.125rem;
    max-width: 800px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-qr {
    display: inline-block;
    background-color: var(--bg-white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.hero-qr p {
    margin-top: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

/* Sections */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 1.25rem;
    margin-bottom: 3rem;
}

/* Services Overview */
.services-overview {
    background-color: var(--bg-light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

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

.service-card p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.link-arrow {
    color: var(--primary-teal);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.link-arrow:hover {
    color: var(--accent-light);
}

/* Pricing Teaser */
.pricing-teaser {
    background-color: var(--bg-white);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.pricing-card {
    background-color: var(--bg-white);
    border: 2px solid var(--border-gray);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    border-color: var(--primary-teal);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.pricing-card.featured {
    border-color: var(--primary-teal);
    box-shadow: var(--shadow-lg);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-teal);
    color: var(--bg-white);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-tier {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: 1rem;
}

.pricing-price {
    margin-bottom: 0.5rem;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-teal);
}

.price-period {
    font-size: 1.25rem;
    color: var(--text-gray);
}

.pricing-discount {
    color: var(--primary-teal);
    font-weight: 600;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-gray);
    color: var(--text-dark);
    font-size: 1rem;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-note {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--bg-light-gray);
    border-radius: 8px;
}

.pricing-note p {
    color: var(--text-gray);
    font-size: 1rem;
}

/* Testimonials */
.testimonials {
    background-color: var(--bg-light-gray);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.testimonial-stars {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.7;
    font-size: 1.05rem;
}

.testimonial-author {
    color: var(--text-gray);
    font-weight: 600;
}

/* Contact Form Section */
.contact-form-section {
    background-color: var(--bg-white);
}

.contact-form-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-form-info h2 {
    margin-bottom: 1rem;
}

.contact-form-info > p {
    color: var(--text-gray);
    margin-bottom: 2rem;
    font-size: 1.125rem;
    line-height: 1.7;
}

.contact-info-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-info-item {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-info-item strong {
    display: block;
    color: var(--primary-navy);
    margin-bottom: 0.25rem;
}

.contact-info-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

.contact-form {
    background-color: var(--bg-light-gray);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-gray);
    border-radius: 6px;
    font-size: 1rem;
    font-family: 'Roboto', sans-serif;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background-color: var(--primary-navy);
    color: var(--bg-white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3,
.footer-col h4 {
    color: var(--bg-white);
    margin-bottom: 1rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

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

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-col ul li a:hover {
    color: var(--accent-light);
}

.footer-qr {
    margin-top: 1.5rem;
    display: inline-block;
}

.footer-qr img {
    background-color: var(--bg-white);
    padding: 0.5rem;
    border-radius: 8px;
}

.footer-qr p {
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
}

.newsletter-form button {
    border: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
}

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

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Responsive Design - Mobile First */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        display: none;
        gap: 0.5rem;
    }

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

    .qr-code-header {
        display: none;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .services-grid,
    .pricing-cards,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .contact-form-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    section {
        padding: 3rem 0;
    }

    .hero {
        padding: 5rem 0 4rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .hero-title {
        font-size: 2.75rem;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-card.featured {
        grid-column: span 2;
        max-width: 400px;
        margin: 0 auto;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .hero-cta,
    .btn {
        display: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-teal: #008080;
        --primary-navy: #000066;
        --text-gray: #4B5563;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Import Additional Page Styles */
@import url('styles-pages.css');