/* ========================================
   I Clean Carpet — Styles
   Charcoal + Coral | Clean Minimalist
======================================== */

/* --- CSS Custom Properties --- */
:root {
    --charcoal-900: #1a1a1a;
    --charcoal-800: #2d2d2d;
    --charcoal-700: #3d3d3d;
    --charcoal-600: #555555;
    --charcoal-500: #6b6b6b;
    --charcoal-400: #8a8a8a;
    --charcoal-300: #b0b0b0;
    --charcoal-200: #d4d4d4;
    --charcoal-100: #ebebeb;
    --charcoal-50: #f5f5f5;
    
    --coral-600: #c45a3c;
    --coral-500: #E07A5F;
    --coral-400: #e8957f;
    --coral-300: #f0b09e;
    --coral-200: #f5c8bc;
    --coral-100: #fae4de;
    --coral-50: #fdf2ef;
    
    --white: #ffffff;
    --off-white: #fafafa;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: 0.3s ease;
    --transition-slow: 0.6s ease;
}

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

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

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--charcoal-800);
    background: 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: var(--coral-500);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--coral-600);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--charcoal-900);
}

em {
    font-style: italic;
    color: var(--coral-500);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 2rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1.5px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--coral-500);
    color: var(--white);
    border-color: var(--coral-500);
}

.btn-primary:hover {
    background: var(--coral-600);
    border-color: var(--coral-600);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(224, 122, 95, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--charcoal-800);
    border-color: var(--charcoal-300);
}

.btn-outline:hover {
    border-color: var(--coral-500);
    color: var(--coral-500);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(4px);
}

.btn-ghost:hover {
    background: var(--white);
    color: var(--charcoal-800);
    border-color: var(--white);
}

.btn-ghost-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-ghost-light:hover {
    background: var(--white);
    color: var(--charcoal-800);
    border-color: var(--white);
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.75rem;
}

/* --- Section Labels --- */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--coral-500);
    margin-bottom: var(--space-sm);
}

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

.section-line {
    width: 60px;
    height: 1.5px;
    background: var(--coral-500);
    margin-bottom: var(--space-xl);
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-lg) 0;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) 0;
    box-shadow: 0 1px 0 var(--charcoal-100);
}

.navbar.scrolled .logo-text {
    color: var(--charcoal-900);
}

.navbar.scrolled .nav-links a {
    color: var(--charcoal-600);
}

.navbar.scrolled .nav-links a:hover {
    color: var(--coral-500);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
}

.logo-mark {
    width: 28px;
    height: 28px;
    background: var(--coral-500);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.logo-mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: var(--white);
    border-radius: 50%;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--white);
    letter-spacing: 0.02em;
}

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

.nav-links a {
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.8);
}

.nav-links a:hover {
    color: var(--coral-400);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    z-index: 1001;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--white);
    transition: all var(--transition);
}

.navbar.scrolled .mobile-toggle span {
    background: var(--charcoal-800);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 4px);
}

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

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -4px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: var(--white);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    color: var(--charcoal-800);
    text-decoration: none;
    transition: color var(--transition);
}

.mobile-link:hover {
    color: var(--coral-500);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 26, 0.82) 0%,
        rgba(45, 45, 45, 0.70) 50%,
        rgba(26, 26, 26, 0.78) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-3xl);
    max-width: 720px;
}

.hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--coral-400);
    margin-bottom: var(--space-md);
}

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

.hero-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    max-width: 540px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.6875rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.7); }
}

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

.section-header {
    margin-bottom: var(--space-3xl);
}

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

.service-card {
    padding: var(--space-xl);
    border: 1px solid var(--charcoal-100);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.service-card:hover {
    border-color: var(--coral-200);
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
    color: var(--coral-500);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--charcoal-900);
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--charcoal-500);
    line-height: 1.7;
}

/* --- About --- */
.about {
    padding: var(--space-4xl) 0;
    background: var(--charcoal-50);
}

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

.about-image {
    position: relative;
}

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

.about-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: var(--coral-100);
    border-radius: var(--radius-md);
    z-index: -1;
}

.about-content .section-label {
    margin-bottom: var(--space-sm);
}

.about-content .section-title {
    margin-bottom: var(--space-md);
}

.about-text {
    font-size: 0.9375rem;
    color: var(--charcoal-500);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.about-stats {
    display: flex;
    gap: var(--space-2xl);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--charcoal-200);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--charcoal-900);
}

.stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--charcoal-400);
}

/* --- Process --- */
.process {
    padding: var(--space-4xl) 0;
    background: var(--white);
}

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

.process-step {
    padding: var(--space-xl);
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 60px;
    background: var(--charcoal-200);
}

.step-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--coral-100);
    line-height: 1;
    margin-bottom: var(--space-md);
}

.process-step h3 {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--charcoal-900);
}

.process-step p {
    font-size: 0.875rem;
    color: var(--charcoal-500);
    line-height: 1.7;
}

/* --- CTA Banner --- */
.cta-banner {
    padding: var(--space-4xl) 0;
    background: var(--charcoal-900);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(224, 122, 95, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
}

.cta-content .section-label {
    margin-bottom: var(--space-md);
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--white);
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

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

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

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

.contact-text {
    font-size: 0.9375rem;
    color: var(--charcoal-500);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

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

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

.contact-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--charcoal-200);
    border-radius: var(--radius-sm);
    color: var(--coral-500);
}

.contact-icon svg {
    width: 18px;
    height: 18px;
}

.contact-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--charcoal-400);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 0.9375rem;
    color: var(--charcoal-700);
}

.contact-value a {
    color: var(--charcoal-700);
}

.contact-value a:hover {
    color: var(--coral-500);
}

/* --- Form --- */
.contact-form-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--charcoal-100);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--charcoal-500);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 300;
    color: var(--charcoal-800);
    background: var(--charcoal-50);
    border: 1px solid var(--charcoal-200);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    transition: all var(--transition);
    outline: none;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--coral-500);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(224, 122, 95, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--charcoal-300);
}

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

.form-success {
    display: none;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--coral-50);
    border: 1px solid var(--coral-200);
    border-radius: var(--radius-sm);
    color: var(--coral-600);
    font-size: 0.9375rem;
    margin-top: var(--space-md);
}

.form-success svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

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

/* --- Footer --- */
.footer {
    padding: var(--space-3xl) 0 var(--space-lg);
    background: var(--charcoal-900);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-tagline {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.7;
    margin-top: var(--space-md);
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: var(--space-md);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.65);
}

.footer-links a:hover {
    color: var(--coral-400);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-contact p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
}

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

.footer-contact a:hover {
    color: var(--coral-400);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.3);
}

/* --- Reveal Animations --- */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-step:not(:last-child)::after {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-content {
        padding-top: var(--space-3xl);
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-image img {
        height: 350px;
    }
    
    .about-image-accent {
        display: none;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .about-stats {
        flex-wrap: wrap;
        gap: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card {
        padding: var(--space-lg);
    }
    
    .contact-form-wrap {
        padding: var(--space-lg);
    }
}