/* ==========================================================================
   FERG REPAIR — Heavy Machinery & Diesel — Design System
   Webflow-inspired: dark industrial palette, amber accents, clean layout
   ========================================================================== */

/* ==========================================================================
   01. CUSTOM PROPERTIES
   ========================================================================== */
:root {
    --bg: #0C0C0C;
    --bg-card: #161616;
    --bg-card-hover: #1C1C1C;
    --bg-alt: #111111;
    --surface: #1A1A1A;
    --border: #2A2A2A;
    --border-light: #333333;

    --amber: #8B9A3B;
    --amber-hover: #6F7D2E;
    --amber-glow: rgba(139, 154, 59, 0.15);

    --text: #E5E5E5;
    --text-secondary: #999999;
    --text-muted: #666666;
    --text-heading: #FFFFFF;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    --container: 1200px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;

    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.4);
    --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);

    /* Crosshatch pattern for dark sections */
    --pattern: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M0 0h1v1H0zM20 0h1v1h-1zM0 20h1v1H0zM20 20h1v1h-1z'/%3E%3C/g%3E%3C/svg%3E");
}

/* ==========================================================================
   02. RESET & BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--amber); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--amber-hover); }
ul { list-style: none; }

::selection { background: rgba(245, 158, 11, 0.3); color: var(--text-heading); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--amber); }

/* ==========================================================================
   03. ACCESSIBILITY
   ========================================================================== */
.skip-link {
    position: absolute; top: -100%; left: 1rem;
    background: var(--amber); color: var(--bg);
    padding: 0.75rem 1.5rem; font-weight: 700; font-size: 0.875rem;
    border-radius: var(--radius-sm); z-index: 99999;
}
.skip-link:focus { top: 1rem; color: var(--bg); }

:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   04. LAYOUT
   ========================================================================== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }

.section { padding: 5rem 0; }
.section-dark { background: var(--bg-alt); background-image: var(--pattern); }
.section-alt { background: var(--surface); }

.section-header { margin-bottom: 3rem; }
.section-header.text-center { text-align: center; }
.section-header p { margin-top: 1rem; font-size: 1.0625rem; color: var(--text-secondary); max-width: 36rem; }
.section-header.text-center p { margin-left: auto; margin-right: auto; }

.section-label {
    font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.15em; color: var(--amber);
    display: inline-block; margin-bottom: 0.75rem;
}

/* ==========================================================================
   05. TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font); color: var(--text-heading); line-height: 1.15; letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 900; }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); font-weight: 700; }
h4 { font-size: 1rem; font-weight: 700; }

.accent { color: var(--amber); }
.muted { color: var(--text-muted); font-size: 0.8125rem; margin-top: 0.25rem; }

/* ==========================================================================
   06. BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.875rem 1.75rem; font-family: var(--font); font-weight: 600; font-size: 0.9375rem;
    border-radius: var(--radius-sm); border: 2px solid transparent; cursor: pointer;
    transition: all var(--transition); text-decoration: none; line-height: 1.2;
    min-height: 44px; white-space: nowrap;
}
.btn svg { flex-shrink: 0; }

.btn-primary { background: var(--amber); color: #000; border-color: var(--amber); }
.btn-primary:hover { background: var(--amber-hover); border-color: var(--amber-hover); color: #000; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.25); }

.btn-outline { background: transparent; color: var(--text); border-color: rgba(255,255,255,0.25); }
.btn-outline:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.4); color: var(--text-heading); }

.btn-dark { background: var(--bg); color: var(--amber); border-color: var(--bg); }
.btn-dark:hover { background: #000; transform: translateY(-2px); color: var(--amber); }

.btn-outline-dark { background: transparent; color: var(--bg); border-color: var(--bg); }
.btn-outline-dark:hover { background: var(--bg); color: var(--amber); }

.btn-lg { padding: 1rem 2.25rem; font-size: 1rem; }
.btn-sm { padding: 0.625rem 1.25rem; font-size: 0.8125rem; }

/* ==========================================================================
   07. HEADER
   ========================================================================== */
.site-header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 9999;
    background: rgba(12,12,12,0.9); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border); transition: all 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.4); }

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 1.5rem; height: 4.25rem; max-width: var(--container); margin: 0 auto;
}

.header-brand { display: flex; align-items: center; text-decoration: none; }
.header-logo { display: flex; align-items: center; gap: 0.75rem; }
.header-logo-img { border-radius: 50%; object-fit: cover; }
.header-brand-text { display: flex; flex-direction: column; }
.header-brand-name { font-weight: 900; font-size: 1.25rem; color: var(--text-heading); letter-spacing: -0.03em; line-height: 1; }
.header-brand-tag { font-family: var(--font-mono); font-size: 0.5625rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 0.125rem; }

.header-nav { display: none; }
.header-nav-list { display: flex; align-items: center; gap: 0; }
.nav-link {
    display: block; padding: 0.5rem 1rem; font-weight: 500; font-size: 0.875rem;
    color: var(--text-secondary); transition: color var(--transition);
}
.nav-link:hover { color: var(--text-heading); }

.header-actions { display: flex; align-items: center; gap: 0.75rem; }
.header-phone {
    display: none; align-items: center; gap: 0.5rem; font-weight: 700; font-size: 0.9375rem;
    color: var(--text-heading); text-decoration: none; white-space: nowrap;
}
.header-phone:hover { color: var(--amber); }
.header-phone svg { color: var(--amber); }
.header-cta-btn { display: none; }

/* Mobile Toggle */
.mobile-toggle {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; background: none; border: none; cursor: pointer; padding: 10px;
}
.mobile-toggle span {
    display: block; width: 22px; height: 2px; background: var(--text); border-radius: 1px;
    transition: all 0.3s ease;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
    display: none; position: fixed; top: 4.25rem; left: 0; width: 100%; bottom: 0;
    background: var(--bg); z-index: 9998; padding: 1rem 0; overflow-y: auto;
    border-top: 1px solid var(--border);
}
.mobile-nav.open { display: block; }
.mobile-nav ul { padding: 0; }
.mobile-nav li { border-bottom: 1px solid var(--border); }
.mobile-nav a {
    display: block; padding: 1rem 1.5rem; font-weight: 600; font-size: 1.125rem;
    color: var(--text); transition: all 0.15s ease;
}
.mobile-nav a:hover { color: var(--amber); background: var(--surface); }
.mobile-nav-cta { padding: 1.5rem; }

/* ==========================================================================
   08. HERO
   ========================================================================== */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    padding: 8rem 1.5rem 4rem; overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
    background:
        linear-gradient(135deg, rgba(12,12,12,0.97) 0%, rgba(12,12,12,0.85) 50%, rgba(12,12,12,0.95) 100%),
        var(--pattern);
    background-color: var(--bg);
}
.hero-overlay {
    position: absolute; inset: 0; z-index: 1;
    background: radial-gradient(ellipse at 20% 80%, rgba(245,158,11,0.06) 0%, transparent 60%);
}

.hero-content {
    position: relative; z-index: 10; max-width: var(--container); margin: 0 auto; width: 100%;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600;
    color: var(--amber); text-transform: uppercase; letter-spacing: 0.1em;
    background: var(--amber-glow); border: 1px solid rgba(245,158,11,0.2);
    padding: 0.5rem 1rem; border-radius: 2rem; margin-bottom: 1.5rem;
}
.hero-badge svg { flex-shrink: 0; color: var(--amber); }

.hero h1 { margin-bottom: 1.5rem; max-width: 48rem; }
.hero-sub {
    font-size: clamp(1rem, 2vw, 1.1875rem); color: var(--text-secondary); max-width: 38rem;
    margin-bottom: 2.5rem; line-height: 1.7;
}

.hero-ctas { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 3rem; }

.hero-trust {
    display: flex; flex-direction: column; gap: 0.75rem;
    padding-top: 2rem; border-top: 1px solid var(--border);
}
.hero-trust-item {
    display: flex; align-items: center; gap: 0.625rem;
    font-size: 0.875rem; color: var(--text-secondary);
}
.hero-trust-item svg { color: var(--amber); flex-shrink: 0; }

/* ==========================================================================
   09. SERVICE CARDS
   ========================================================================== */
.services-grid {
    display: grid; grid-template-columns: 1fr; gap: 1rem;
}

.service-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2rem; transition: all var(--transition); position: relative; overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--amber); opacity: 0; transition: opacity var(--transition);
}
.service-card:hover { transform: translateY(-4px); border-color: var(--border-light); box-shadow: var(--shadow); background: var(--bg-card-hover); }
.service-card:hover::before { opacity: 1; }

.service-icon {
    width: 3rem; height: 3rem; display: flex; align-items: center; justify-content: center;
    background: var(--amber-glow); border-radius: var(--radius-sm); margin-bottom: 1.25rem;
    color: var(--amber);
}

.service-card h3 { margin-bottom: 0.75rem; }
.service-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.6; }

/* ==========================================================================
   10. EQUIPMENT GRID
   ========================================================================== */
.equip-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem;
}
.equip-tag {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 0.875rem 1rem; font-weight: 600; font-size: 0.9375rem; color: var(--text);
    text-align: center; transition: all 0.2s ease;
}
.equip-tag:hover { border-color: var(--amber); color: var(--amber); }

/* ==========================================================================
   11. ABOUT
   ========================================================================== */
.about-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; }

.about-text h2 { margin-bottom: 1.5rem; }
.about-text p { color: var(--text-secondary); font-size: 1.0625rem; line-height: 1.8; margin-bottom: 1rem; }

.about-stats {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
    margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--border);
}
.stat { text-align: center; }
.stat-value {
    font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 900; color: var(--amber); line-height: 1;
}
.stat-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.375rem; }

.about-features { display: flex; flex-direction: column; gap: 1.5rem; }
.about-feature {
    display: flex; gap: 1rem; align-items: flex-start;
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.5rem; transition: all var(--transition);
}
.about-feature:hover { border-color: var(--border-light); }
.about-feature-icon {
    width: 2.75rem; height: 2.75rem; display: flex; align-items: center; justify-content: center;
    background: var(--amber-glow); border-radius: var(--radius-sm); color: var(--amber); flex-shrink: 0;
}
.about-feature h3 { margin-bottom: 0.375rem; font-size: 1rem; }
.about-feature p { color: var(--text-secondary); font-size: 0.875rem; line-height: 1.5; }

/* ==========================================================================
   12. CTA BANNER
   ========================================================================== */
.cta-banner {
    background: var(--amber); padding: 4rem 1.5rem; position: relative;
    background-image: var(--pattern);
}
.cta-inner { text-align: center; }
.cta-banner h2 { color: #000; margin-bottom: 0.75rem; }
.cta-banner p { color: rgba(0,0,0,0.7); font-size: 1.0625rem; margin-bottom: 2rem; }
.cta-actions { display: flex; flex-direction: column; gap: 0.75rem; align-items: center; }

/* ==========================================================================
   13. FAQ
   ========================================================================== */
.faq-list { max-width: 48rem; margin: 0 auto; }

.faq-item {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    margin-bottom: 0.625rem; overflow: hidden;
}

.faq-question {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    padding: 1.25rem 1.5rem; font-family: var(--font); font-weight: 600; font-size: 0.9375rem;
    text-align: left; background: transparent; border: none; cursor: pointer;
    color: var(--text-heading); gap: 1rem; transition: color 0.15s ease; line-height: 1.4;
}
.faq-question:hover { color: var(--amber); }

.faq-icon {
    width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center;
    background: var(--surface); border-radius: 50%; flex-shrink: 0; font-size: 1.125rem;
    font-weight: 700; color: var(--amber); transition: all 0.3s ease;
}
.faq-question[aria-expanded="true"] .faq-icon { background: var(--amber); color: #000; transform: rotate(45deg); }

.faq-answer { display: none; padding: 0 1.5rem 1.5rem; color: var(--text-secondary); line-height: 1.7; font-size: 0.9375rem; }
.faq-answer.open { display: block; }

/* ==========================================================================
   14. CONTACT
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }

.form-container {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2rem;
}

.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block; font-weight: 600; font-size: 0.875rem; color: var(--text);
    margin-bottom: 0.375rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%; padding: 0.75rem 1rem; font-family: var(--font); font-size: 0.9375rem;
    color: var(--text); background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); transition: all 0.2s ease; min-height: 44px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px var(--amber-glow);
}
.form-group textarea { min-height: 7rem; resize: vertical; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-row { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }

.form-submit {
    width: 100%; padding: 1rem; font-family: var(--font); font-weight: 700; font-size: 1rem;
    background: var(--amber); color: #000; border: none; border-radius: var(--radius-sm);
    cursor: pointer; transition: all var(--transition); min-height: 44px;
}
.form-submit:hover { background: var(--amber-hover); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(245,158,11,0.3); }

.form-status { padding: 1rem; margin-top: 1rem; border-radius: var(--radius-sm); font-size: 0.9375rem; display: none; }
.form-status.success { background: rgba(34,197,94,0.15); color: #4ade80; display: block; border: 1px solid rgba(34,197,94,0.2); }
.form-status.error { background: rgba(239,68,68,0.15); color: #f87171; display: block; border: 1px solid rgba(239,68,68,0.2); }

.hp-field { position: absolute; left: -9999px; }

.contact-info { display: flex; flex-direction: column; gap: 1rem; }
.contact-card {
    display: flex; gap: 1rem; align-items: flex-start;
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.25rem;
}
.contact-card-icon {
    width: 2.75rem; height: 2.75rem; display: flex; align-items: center; justify-content: center;
    background: var(--amber-glow); border-radius: var(--radius-sm); color: var(--amber); flex-shrink: 0;
}
.contact-card h4 { margin-bottom: 0.25rem; }
.contact-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.5; }
.contact-card a { color: var(--amber); font-weight: 500; }
.contact-card a:hover { color: var(--amber-hover); }

/* ==========================================================================
   15. FOOTER
   ========================================================================== */
.site-footer { background: var(--bg-alt); padding: 3.5rem 0 1.5rem; border-top: 1px solid var(--border); }

.footer-inner { display: grid; grid-template-columns: 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }

.footer-logo-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }
.footer-logo-img { border-radius: 50%; object-fit: cover; }
.footer-logo { font-weight: 900; font-size: 1.375rem; color: var(--text-heading); letter-spacing: -0.03em; }
.footer-brand p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.6; max-width: 24rem; }

.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.footer-col h4 { color: var(--text-heading); font-size: 0.875rem; margin-bottom: 0.75rem; }
.footer-col ul li { margin-bottom: 0.375rem; }
.footer-col ul a,
.footer-col ul li { color: var(--text-muted); font-size: 0.875rem; transition: color 0.15s; }
.footer-col ul a:hover { color: var(--amber); }

.footer-bottom {
    padding-top: 1.5rem; border-top: 1px solid var(--border); text-align: center;
    font-size: 0.8125rem; color: var(--text-muted);
}

/* ==========================================================================
   16. MOBILE CTA BAR
   ========================================================================== */
.mobile-cta {
    position: fixed; bottom: 0; left: 0; width: 100%; display: flex; z-index: 9998;
    box-shadow: 0 -4px 16px rgba(0,0,0,0.4);
}
.mobile-cta-call,
.mobile-cta-quote {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.875rem; font-weight: 700; font-size: 0.9375rem; text-decoration: none; min-height: 44px;
}
.mobile-cta-call { background: var(--amber); color: #000; }
.mobile-cta-quote { background: var(--bg); color: var(--text); border-top: 1px solid var(--border); }

/* ==========================================================================
   17. SCROLL REVEAL
   ========================================================================== */
.reveal {
    opacity: 0; transform: translateY(1.25rem);
    transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.reveal.active { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   18. RESPONSIVE — TABLET (768px+)
   ========================================================================== */
@media (min-width: 768px) {
    .mobile-toggle { display: none; }
    .header-nav { display: flex; align-items: center; }
    .header-phone { display: flex; }
    .mobile-nav { display: none !important; }
    .mobile-cta { display: none; }
    body { padding-bottom: 0; }

    .hero { padding: 10rem 1.5rem 6rem; }
    .hero-ctas { flex-direction: row; gap: 1rem; }
    .hero-trust { flex-direction: row; gap: 2rem; }

    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .equip-grid { grid-template-columns: repeat(3, 1fr); }
    .about-grid { grid-template-columns: 1fr 1fr; align-items: start; }
    .contact-grid { grid-template-columns: 1.2fr 0.8fr; }
    .form-row { grid-template-columns: 1fr 1fr; }
    .cta-actions { flex-direction: row; justify-content: center; }
    .footer-inner { grid-template-columns: 1.5fr 1fr; }
}

/* ==========================================================================
   19. RESPONSIVE — DESKTOP (1024px+)
   ========================================================================== */
@media (min-width: 1024px) {
    .header-cta-btn { display: inline-flex; }
    .services-grid { grid-template-columns: repeat(3, 1fr); }
    .equip-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   20. RESPONSIVE — LARGE (1280px+)
   ========================================================================== */
@media (min-width: 1280px) {
    .equip-grid { grid-template-columns: repeat(6, 1fr); }
}

/* ==========================================================================
   21. MOBILE SPECIFIC
   ========================================================================== */
@media (max-width: 767px) {
    body { padding-bottom: 3.5rem; }
    .site-footer { padding-bottom: 5rem; }
}