/* ============================================
   STET TIRE & WELDING — Stylesheet
   Classic & Elegant | Terracotta + Sand
   ============================================ */

/* --- Custom Properties --- */
:root {
    --terracotta-50: #FDF4F0;
    --terracotta-100: #FBE8DF;
    --terracotta-200: #F6D0C0;
    --terracotta-300: #EDAA8E;
    --terracotta-400: #E07A5F;
    --terracotta-500: #B85C38;
    --terracotta-600: #A34C2C;
    --terracotta-700: #8A3F25;
    --terracotta-800: #6E311E;
    --terracotta-900: #4A1F12;
    --sand-50: #FDFBF7;
    --sand-100: #F9F3EA;
    --sand-200: #F2E8D5;
    --sand-300: #E8D5BA;
    --sand-400: #D4BA96;
    --sand-500: #BFA07A;
    --sand-600: #A07D56;
    --sand-700: #7A5C3E;
    --sand-800: #523C28;
    --sand-900: #2E2117;
    --cream: #FAF6F0;
    --charcoal: #1E1A17;
    --slate: #3A332E;
    --warm-gray: #6B6058;
    --light-gray: #A89E94;
    --white: #FFFFFF;
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --shadow-sm: 0 1px 3px rgba(30, 26, 23, 0.08);
    --shadow-md: 0 4px 16px rgba(30, 26, 23, 0.1);
    --shadow-lg: 0 8px 32px rgba(30, 26, 23, 0.12);
    --shadow-xl: 0 16px 48px rgba(30, 26, 23, 0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--charcoal);
    background-color: var(--sand-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--charcoal);
}

/* --- Skip Link --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    background: var(--terracotta-700);
    color: var(--white);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    z-index: 1000;
    font-weight: 500;
}

.skip-link:focus {
    top: 1rem;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--terracotta-600);
    border-color: var(--terracotta-600);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.6);
}

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

.btn-lg {
    padding: 1rem 2.25rem;
    font-size: 1rem;
}

.btn-small {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

.btn-full {
    width: 100%;
}

/* --- Section Shared --- */
.section-tag {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--terracotta-500);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    margin-bottom: 1rem;
    color: var(--charcoal);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--warm-gray);
    max-width: 600px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

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

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(253, 251, 247, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--sand-200);
    transition: box-shadow var(--transition);
}

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--charcoal);
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
    transition: color var(--transition);
}

.logo:hover {
    color: var(--terracotta-600);
}

.logo-icon {
    color: var(--terracotta-500);
    flex-shrink: 0;
}

.logo-divider {
    color: var(--terracotta-400);
    font-style: italic;
    margin: 0 0.125rem;
}

.logo-light {
    color: var(--white);
}

.logo-light:hover {
    color: var(--sand-200);
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.main-nav a {
    color: var(--slate);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.main-nav a:hover {
    color: var(--terracotta-600);
    background: var(--terracotta-50);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    position: relative;
    color: var(--charcoal);
}

.hamburger {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

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

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

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(30, 26, 23, 0.88) 0%,
        rgba(74, 31, 18, 0.75) 50%,
        rgba(30, 26, 23, 0.85) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 8rem 1.5rem 4rem;
    max-width: 820px;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sand-300);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    margin-bottom: 1.75rem;
}

.hero-headline {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.hero-headline em {
    font-style: italic;
    color: var(--terracotta-300);
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.1875rem);
    color: var(--sand-300);
    line-height: 1.75;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
}

.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--sand-200);
    font-size: 0.875rem;
    font-weight: 500;
}

.trust-item svg {
    color: var(--terracotta-400);
}

/* --- Services --- */
.services {
    padding: 6rem 0;
    background: var(--sand-50);
}

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

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid var(--sand-200);
    transition: all var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--terracotta-200);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--terracotta-50);
    border-radius: var(--radius-md);
    color: var(--terracotta-600);
    margin-bottom: 1.25rem;
    transition: all var(--transition);
}

.service-card:hover .service-icon {
    background: var(--terracotta-500);
    color: var(--white);
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--charcoal);
}

.service-desc {
    font-size: 0.9375rem;
    color: var(--warm-gray);
    line-height: 1.7;
}

/* --- About --- */
.about {
    padding: 6rem 0;
    background: var(--white);
}

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

.about-image-wrap {
    position: relative;
}

.about-image-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-main img {
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.about-image-accent {
    position: absolute;
    bottom: -2rem;
    right: -2rem;
    width: 55%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 4px solid var(--white);
}

.about-image-accent img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.about-experience {
    position: absolute;
    top: -1.5rem;
    right: -1.5rem;
    background: var(--terracotta-500);
    color: var(--white);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-experience .exp-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.about-experience .exp-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.85;
}

.about-content .section-title {
    margin-bottom: 1.25rem;
}

.about-text {
    font-size: 1rem;
    color: var(--warm-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-values {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.9375rem;
    color: var(--slate);
    line-height: 1.5;
}

.value-item svg {
    color: var(--terracotta-500);
    flex-shrink: 0;
    margin-top: 2px;
}

/* --- Why Us --- */
.why-us {
    padding: 6rem 0;
    background: var(--charcoal);
}

.why-us .section-tag {
    color: var(--terracotta-400);
}

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

.why-us .section-subtitle {
    color: var(--sand-400);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.why-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    transition: all var(--transition);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--terracotta-500);
    transform: translateY(-2px);
}

.why-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--terracotta-700);
    line-height: 1;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.why-title {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.why-desc {
    font-size: 0.9375rem;
    color: var(--sand-400);
    line-height: 1.7;
}

/* --- Testimonials --- */
.testimonials {
    padding: 6rem 0;
    background: var(--sand-100);
}

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

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid var(--sand-200);
    transition: all var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.testimonial-stars {
    display: flex;
    gap: 0.25rem;
    color: var(--terracotta-500);
    margin-bottom: 1.25rem;
}

.testimonial-text {
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    font-style: italic;
    color: var(--slate);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.testimonial-author {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--warm-gray);
}

/* --- CTA Banner --- */
.cta-banner {
    padding: 5rem 0;
    background: var(--terracotta-500);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.15) 0%, transparent 60%);
}

.cta-inner {
    position: relative;
    text-align: center;
}

.cta-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.0625rem;
    color: var(--terracotta-100);
    max-width: 540px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* --- Contact --- */
.contact {
    padding: 6rem 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-intro {
    font-size: 1rem;
    color: var(--warm-gray);
    line-height: 1.7;
    margin-bottom: 2rem;
}

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

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

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--terracotta-50);
    border-radius: var(--radius-md);
    color: var(--terracotta-600);
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--light-gray);
    margin-bottom: 0.25rem;
}

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

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

.contact-item a:hover {
    color: var(--terracotta-500);
    text-decoration: underline;
}

/* --- Contact Form --- */
.contact-form-wrap {
    background: var(--sand-50);
    border: 1px solid var(--sand-200);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
}

.form-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--charcoal);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate);
    margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--charcoal);
    background: var(--white);
    border: 1.5px solid var(--sand-300);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--terracotta-400);
    box-shadow: 0 0 0 3px rgba(184, 92, 56, 0.1);
}

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

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

.form-note {
    font-size: 0.8125rem;
    color: var(--light-gray);
    margin-top: 0.75rem;
    text-align: center;
}

.form-success {
    text-align: center;
    padding: 2rem;
}

.form-success svg {
    color: var(--terracotta-500);
    margin: 0 auto 1rem;
}

.form-success h4 {
    font-size: 1.25rem;
    color: var(--charcoal);
    margin-bottom: 0.5rem;
}

.form-success p {
    font-size: 0.9375rem;
    color: var(--warm-gray);
}

/* --- Footer --- */
.site-footer {
    background: var(--charcoal);
    color: var(--sand-300);
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--sand-400);
    margin-top: 1rem;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sand-200);
    margin-bottom: 1rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--sand-400);
    font-size: 0.9375rem;
    padding: 0.25rem 0;
    transition: color var(--transition);
}

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

.footer-contact p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

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

.footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--sand-600);
}

/* --- 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.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(253, 251, 247, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--sand-200);
        padding: 1rem 1.5rem 1.5rem;
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
        box-shadow: var(--shadow-lg);
    }

    .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0.25rem;
        width: 100%;
    }

    .main-nav a {
        display: block;
        padding: 0.75rem 1rem;
        width: 100%;
    }

    .main-nav .btn {
        margin-top: 0.5rem;
        text-align: center;
    }

    .hero-content {
        padding: 7rem 1.5rem 3rem;
    }

    .hero-trust {
        gap: 1rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-image-accent {
        right: 0;
        bottom: -1.5rem;
    }

    .about-values {
        grid-template-columns: 1fr;
    }

    .why-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .cta-actions {
        flex-direction: column;
    }

    .cta-actions .btn {
        width: 100%;
    }
}