/* ========================================
   Texas Tuff Appliance Repair
   Classic & Elegant Design System
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
    --teal-900: #0a2e35;
    --teal-800: #0d3b44;
    --teal-700: #104a54;
    --teal-600: #145f6c;
    --teal-500: #1a7a8a;
    --teal-400: #2a9dad;
    --teal-300: #5bbfc9;
    --teal-100: #b8e0e7;
    --teal-50:  #e8f4f6;
    
    --slate-950: #0c1522;
    --slate-900: #132033;
    --slate-800: #1e3047;
    --slate-700: #2c4258;
    --slate-600: #3d5a73;
    --slate-500: #527088;
    --slate-400: #7a96a8;
    --slate-300: #a3b8c4;
    --slate-200: #c8d6de;
    --slate-100: #e2eaef;
    --slate-50:  #f2f6f8;
    
    --cream: #faf8f5;
    --warm-white: #fefcf9;
    
    --gold: #c9a84c;
    --gold-light: #e0c77b;
    
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Lato', 'Segoe UI', system-ui, sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(12, 21, 34, 0.08);
    --shadow-md: 0 4px 16px rgba(12, 21, 34, 0.10);
    --shadow-lg: 0 8px 32px rgba(12, 21, 34, 0.12);
    --shadow-xl: 0 16px 48px rgba(12, 21, 34, 0.14);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: 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-sans);
    color: var(--slate-800);
    background-color: var(--warm-white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--teal-600);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--teal-500);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--slate-900);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--teal-600);
    color: #ffffff;
    border-color: var(--teal-600);
}

.btn-primary:hover {
    background: var(--teal-700);
    border-color: var(--teal-700);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
    background: #ffffff;
    color: var(--teal-900);
    border-color: #ffffff;
}

.btn-outline-white {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.8);
}

.btn-outline-white:hover {
    background: #ffffff;
    color: var(--teal-900);
    border-color: #ffffff;
}

.btn-white {
    background: #ffffff;
    color: var(--teal-900);
    border-color: #ffffff;
}

.btn-white:hover {
    background: var(--teal-50);
    color: var(--teal-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1rem;
}

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

/* --- Section Tags --- */
.section-tag {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--teal-500);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--slate-500);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

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

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(250, 248, 245, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--slate-100);
    transition: all var(--transition);
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--teal-700);
    color: #ffffff;
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--slate-900);
    line-height: 1.2;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--slate-700);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--teal-500);
    transition: width var(--transition);
}

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

.nav-links a:hover {
    color: var(--teal-600);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--slate-800);
    transition: all var(--transition);
    border-radius: 2px;
}

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

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

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

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: url('https://images.pexels.com/photos/4312849/pexels-photo-4312849.jpeg?auto=compress&cs=tinysrgb&fit=crop&w=1920&h=1080') center center / cover no-repeat;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 46, 53, 0.92) 0%,
        rgba(13, 59, 68, 0.85) 50%,
        rgba(20, 78, 90, 0.78) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 120px 24px 80px;
    max-width: 800px;
}

.hero-headline {
    font-size: clamp(2.25rem, 5vw, 4rem);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 24px;
    line-height: 1.15;
}

.hero-headline .text-accent {
    color: var(--teal-300);
    font-style: italic;
    font-weight: 400;
}

.hero-sub {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--slate-200);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--slate-300);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Services Section --- */
.services {
    padding: 100px 0;
    background: var(--cream);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--slate-100);
    transition: all var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--teal-100);
}

.service-icon {
    width: 72px;
    height: 72px;
    background: var(--teal-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal-600);
    margin-bottom: 24px;
    transition: all var(--transition);
}

.service-card:hover .service-icon {
    background: var(--teal-600);
    color: #ffffff;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--slate-900);
}

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

/* --- About Section --- */
.about {
    padding: 100px 0;
    background: var(--warm-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 700px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-badge {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background: var(--teal-700);
    color: #ffffff;
    padding: 24px 32px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--teal-300);
}

.badge-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-200);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-content .section-title {
    margin-bottom: 24px;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--slate-600);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--slate-200);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--teal-600);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--slate-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}

/* --- Why Us Section --- */
.why-us {
    padding: 100px 0;
    background: var(--teal-900);
}

.why-us .section-tag {
    color: var(--teal-300);
}

.why-us .section-title {
    color: #ffffff;
}

.why-us .section-desc {
    color: var(--slate-300);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all var(--transition);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.feature-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--teal-500);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.6;
}

.feature-card h3 {
    font-size: 1.25rem;
    color: #ffffff;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--slate-300);
    line-height: 1.7;
}

/* --- CTA Banner --- */
.cta-banner {
    position: relative;
    padding: 100px 0;
    background: url('https://images.pexels.com/photos/12172496/pexels-photo-12172496.jpeg?auto=compress&cs=tinysrgb&fit=crop&w=1920&h=600') center center / cover no-repeat;
    overflow: hidden;
}

.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 46, 53, 0.94) 0%,
        rgba(20, 78, 90, 0.88) 100%
    );
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: #ffffff;
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.125rem;
    color: var(--slate-200);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Contact Section --- */
.contact {
    padding: 100px 0;
    background: var(--cream);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info .section-title {
    margin-bottom: 16px;
}

.contact-desc {
    font-size: 1.0625rem;
    color: var(--slate-500);
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    background: var(--teal-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal-600);
}

.contact-item strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--slate-900);
    margin-bottom: 4px;
}

.contact-item a,
.contact-item span {
    font-size: 0.9375rem;
    color: var(--slate-600);
    line-height: 1.6;
}

.contact-item a:hover {
    color: var(--teal-600);
}

/* --- Contact Form --- */
.contact-form-wrapper {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--slate-100);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--slate-900);
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--slate-800);
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--teal-500);
    background: #ffffff;
    box-shadow: 0 0 0 3px var(--teal-100);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--slate-400);
}

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

.form-note {
    font-size: 0.8125rem;
    color: var(--slate-400);
    text-align: center;
    margin-top: 16px;
}

.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success svg {
    color: var(--teal-500);
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.form-success p {
    color: var(--slate-500);
    margin-bottom: 24px;
}

/* --- Footer --- */
.footer {
    background: var(--slate-950);
    color: var(--slate-300);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--slate-800);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-icon {
    width: 44px;
    height: 44px;
    background: var(--teal-700);
    color: #ffffff;
    font-family: var(--font-serif);
    font-size: 0.9375rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.footer-logo span {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.2;
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--slate-400);
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #ffffff;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--slate-400);
    transition: color var(--transition);
}

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

.footer-contact p {
    font-size: 0.9375rem;
    line-height: 1.8;
}

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

.footer-contact a:hover {
    color: var(--teal-300);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--slate-500);
}

/* --- Scroll Reveal (Progressive Enhancement) --- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
    
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services-grid,
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(250, 248, 245, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 32px 24px;
        gap: 20px;
        border-bottom: 1px solid var(--slate-100);
        transform: translateY(-120%);
        opacity: 0;
        transition: all var(--transition);
        pointer-events: none;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-content {
        padding: 140px 24px 100px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        justify-content: center;
    }
    
    .services-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image img {
        height: 400px;
    }
    
    .about-badge {
        right: 16px;
        bottom: -16px;
        padding: 16px 24px;
    }
    
    .about-stats {
        gap: 24px;
        flex-wrap: wrap;
    }
    
    .contact-form-wrapper {
        padding: 32px 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .services,
    .about,
    .why-us,
    .contact {
        padding: 64px 0;
    }
    
    .service-card {
        padding: 28px 24px;
    }
    
    .feature-card {
        padding: 28px 24px;
    }
}