/* ===================================
   C Carlson's Plumbing Systems
   Clean Minimalist — Midnight Blue + Mint
   =================================== */

/* CSS Custom Properties */
:root {
    --midnight: #0a1628;
    --midnight-light: #132238;
    --midnight-mid: #1a2d47;
    --mint: #34d4b4;
    --mint-light: #4de8ca;
    --mint-pale: #e6f9f5;
    --mint-ultra: #f0faf7;
    --white: #ffffff;
    --off-white: #f8fafc;
    --gray-50: #f1f5f9;
    --gray-100: #e2e8f0;
    --gray-200: #cbd5e1;
    --gray-300: #94a3b8;
    --gray-400: #64748b;
    --gray-500: #475569;
    --gray-600: #334155;
    --gray-700: #1e293b;
    
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.05);
    --shadow-md: 0 4px 12px rgba(10, 22, 40, 0.08);
    --shadow-lg: 0 8px 30px rgba(10, 22, 40, 0.12);
    --shadow-xl: 0 16px 50px rgba(10, 22, 40, 0.15);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--gray-700);
    background-color: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--midnight);
}

.section-eyebrow {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--mint);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
    color: var(--midnight);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--gray-500);
    max-width: 560px;
    line-height: 1.8;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--mint);
    color: var(--midnight);
    border-color: var(--mint);
}

.btn-primary:hover {
    background: var(--mint-light);
    border-color: var(--mint-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(52, 212, 180, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.btn-outline {
    background: transparent;
    color: var(--midnight);
    border-color: var(--gray-200);
}

.btn-outline:hover {
    border-color: var(--mint);
    color: var(--mint);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

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

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--midnight);
}

.nav-logo-icon {
    color: var(--mint);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--gray-500);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--mint);
    transition: var(--transition);
}

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

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

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.625rem 1.25rem;
    background: var(--midnight);
    color: var(--white) !important;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.85rem;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--midnight-light);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--midnight);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--midnight);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 22, 40, 0.92) 0%,
        rgba(10, 22, 40, 0.75) 50%,
        rgba(10, 22, 40, 0.88) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--mint);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-title br {
    display: none;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 560px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

.trust-item svg {
    color: var(--mint);
}

/* Services */
.services {
    padding: var(--spacing-4xl) 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header .section-subtitle {
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    padding: var(--spacing-xl);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--mint);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--mint-ultra);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    color: var(--mint);
}

.service-card h3 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--midnight);
}

.service-card p {
    font-size: 0.925rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* About */
.about {
    padding: var(--spacing-4xl) 0;
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.about-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--mint);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.15;
}

.about-content .section-title {
    margin-bottom: var(--spacing-lg);
}

.about-content p {
    color: var(--gray-500);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--gray-100);
    border-bottom: 1px solid var(--gray-100);
}

.stat {
    flex: 1;
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--midnight);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    background: var(--gray-200);
}

/* Why Us */
.why-us {
    padding: var(--spacing-4xl) 0;
    background: var(--midnight);
}

.why-us .section-title {
    color: var(--white);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.why-card {
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.why-card:hover {
    border-color: var(--mint);
    background: rgba(52, 212, 180, 0.05);
}

.why-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--mint);
    opacity: 0.4;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.why-card h3 {
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.why-card p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
}

/* Gallery */
.gallery {
    padding: var(--spacing-4xl) 0;
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 5/4;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 22, 40, 0.8) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-md);
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 500;
}

/* CTA */
.cta {
    padding: var(--spacing-4xl) 0;
    background: var(--mint-ultra);
}

.cta-inner {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-eyebrow {
    color: var(--mint);
    margin-bottom: var(--spacing-sm);
}

.cta-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    color: var(--gray-500);
    font-size: 1.05rem;
    margin-bottom: var(--spacing-xl);
}

.cta-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Contact */
.contact {
    padding: var(--spacing-4xl) 0 var(--spacing-3xl);
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.contact-text {
    color: var(--gray-500);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-item svg {
    color: var(--mint);
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.contact-item strong {
    display: block;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--midnight);
    margin-bottom: 0.25rem;
}

.contact-item span,
.contact-item a {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.6;
}

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

/* Contact Form */
.contact-form-wrapper {
    background: var(--off-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid var(--gray-100);
}

.contact-form h3 {
    font-family: var(--font-body);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--midnight);
    margin-bottom: var(--spacing-lg);
}

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

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--gray-700);
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--mint);
    box-shadow: 0 0 0 3px rgba(52, 212, 180, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-success {
    display: none;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: var(--mint-ultra);
    border: 1px solid var(--mint);
    border-radius: var(--radius-md);
    color: var(--midnight);
    font-size: 0.9rem;
    margin-top: var(--spacing-md);
}

.form-success svg {
    color: var(--mint);
    flex-shrink: 0;
}

.form-success.show {
    display: flex;
}

/* Map */
.map-wrapper {
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-100);
}

/* Footer */
.footer {
    background: var(--midnight);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-contact p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    line-height: 1.8;
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.8rem;
}

/* Scroll Reveal Animations */
[data-reveal] {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-reduced-motion: no-preference) {
    [data-reveal] {
        opacity: 0;
        transform: translateY(24px);
    }
    
    [data-reveal].revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        border-bottom: 1px solid var(--gray-100);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-cta {
        justify-content: center;
        width: 100%;
    }
    
    .hero-title br {
        display: block;
    }
    
    .hero-trust {
        gap: var(--spacing-md);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-image img {
        height: 350px;
    }
    
    .about-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .stat-divider {
        width: 100%;
        height: 1px;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .cta-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: var(--spacing-lg);
    }
}