/* ============================================================
   Big Air Repair — Dark Craft Design System
   Fonts: Barlow Condensed (headings) + DM Sans (body)
   ============================================================ */

/* ─── TOKENS ──────────────────────────────────────────────── */
:root {
  --bg:           #0D1117;
  --surface:      #161B22;
  --surface-2:    #1E2633;
  --accent:       #FF6B35;
  --accent-dark:  #E5541E;
  --text:         #E6EDF3;
  --text-muted:   #8B949E;
  --border:       #30363D;

  --font-heading: 'Barlow Condensed', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --radius:       6px;
  --radius-lg:    10px;

  --container:    1140px;
  --header-h:     64px;
}

/* ─── RESET ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ─── SKIP LINK ───────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: .5rem 1rem;
  background: var(--accent);
  color: #fff;
  font-size: .875rem;
  border-radius: var(--radius);
  z-index: 9999;
  transition: top .15s;
}
.skip-link:focus { top: 1rem; }

/* ─── CONTAINER ───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .625rem 1.25rem;
  font-family: var(--font-body);
  font-size: .9375rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--accent-dark);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  border-color: var(--text-muted);
  color: var(--text);
}
.btn-lg {
  padding: .875rem 1.75rem;
  font-size: 1rem;
}
.btn-full { width: 100%; justify-content: center; }
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ─── SECTION HEADERS ─────────────────────────────────────── */
.section-header {
  margin-bottom: 3rem;
}
.section-label {
  font-size: .8125rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .75rem;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--text);
}
.section-sub {
  margin-top: .75rem;
  color: var(--text-muted);
  font-size: 1.0625rem;
  max-width: 520px;
}


/* ─── HEADER ──────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

/* Inverted logo — black becomes white on dark bg */
.logo-img {
  display: block;
  filter: invert(1);
  mix-blend-mode: screen;
}
.logo-img--sm  { height: 44px; width: auto; }
.logo-img--md  { height: 90px; width: auto; }
.logo-img--hero {
  width: 350px;
  max-width: 100%;
  height: auto;
}

.header-nav {
  display: flex;
  gap: 1.75rem;
  margin-left: .5rem;
}
.header-nav a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .15s;
}
.header-nav a:hover { color: var(--text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
}
.whatsapp-link {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .15s;
}
.whatsapp-link:hover { color: #25D366; }

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
  margin-left: auto;
}
.mobile-menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: transform .2s, opacity .2s;
}

/* Mobile menu */
.mobile-menu {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0 1.5rem;
}
.mobile-link {
  display: block;
  padding: .75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .15s;
}
.mobile-link:hover { color: var(--text); }
.mobile-cta {
  margin: .5rem 1.5rem 0;
  display: block;
  text-align: center;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  padding: .75rem 1rem;
  font-weight: 500;
}
.mobile-cta:hover { background: var(--accent-dark); color: #fff; }
.mobile-whatsapp {
  color: #25D366;
}
.mobile-whatsapp:hover { color: #1DB954; }


/* ─── HERO ────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 5rem 0;
}
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(255, 107, 53, 0.07) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(255, 107, 53, 0.04) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 4rem;
  align-items: center;
}
.hero-text { display: flex; flex-direction: column; }
.hero-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-label {
  font-size: .8125rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.hero-headline {
  font-family: var(--font-heading);
  font-size: clamp(3.5rem, 10vw, 7.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: .01em;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.hero-accent { color: var(--accent); }
.hero-sub {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 2.5rem;
}
.hero-coverage {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--text-muted);
}
.hero-coverage svg { flex-shrink: 0; color: var(--accent); }


/* ─── SERVICES ────────────────────────────────────────────── */
.services {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color .2s, background .2s;
}
.service-card:hover {
  border-color: rgba(255, 107, 53, 0.4);
  background: var(--surface-2);
}
.service-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 1rem;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: .02em;
  margin-bottom: .5rem;
  color: var(--text);
}
.service-card p {
  font-size: .9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}


/* Services callout */
.services-callout {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: rgba(255, 107, 53, 0.07);
  border: 1px solid rgba(255, 107, 53, 0.25);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
}
.services-callout-text {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.services-callout-text strong {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.5;
}
.services-callout-text span {
  font-size: .9rem;
  color: var(--text-muted);
}
@media (max-width: 640px) {
  .services-callout { flex-direction: column; align-items: flex-start; }
  .services-callout .btn { width: 100%; justify-content: center; }
}

/* ─── BEFORE & AFTER ──────────────────────────────────────── */
.work {
  padding: 6rem 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.gallery-pair {
  display: grid;
  grid-template-rows: auto auto;
  gap: .5rem;
}
.gallery-item {
  position: relative;
}
.gallery-photo {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}
.gallery-label {
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: .25rem 0 0 .25rem;
}
.gallery-label--after { color: var(--accent); }
.gallery-note {
  text-align: center;
  font-size: .9375rem;
}
.gallery-note a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}


/* ─── USP STRIP ───────────────────────────────────────────── */
.usps {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}
.usp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.usp-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.usp-icon {
  width: 36px;
  height: 36px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: .15rem;
}
.usp-icon svg { width: 100%; height: 100%; }
.usp-text { display: flex; flex-direction: column; gap: .3rem; }
.usp-text strong {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
}
.usp-text span {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.55;
}


/* ─── HOW IT WORKS ───────────────────────────────────────── */
.process {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}
.process-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 3.5rem;
  align-items: start;
}
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.process-step {
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}
.process-step:first-child { padding-top: 0; }
.process-step:last-child { border-bottom: none; padding-bottom: 0; }
.process-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--accent);
  opacity: .25;
  flex-shrink: 0;
  width: 56px;
  text-align: right;
  letter-spacing: -.02em;
}
.process-content h3 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
  margin-bottom: .5rem;
}
.process-content p {
  font-size: .9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 420px;
}
.process-note {
  background: rgba(255, 107, 53, 0.07);
  border: 1px solid rgba(255, 107, 53, 0.25);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
}
.process-note-icon {
  width: 36px;
  height: 36px;
  color: var(--accent);
  margin-bottom: 1rem;
}
.process-note-icon svg { width: 100%; height: 100%; }
.process-note h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
  margin-bottom: .75rem;
}
.process-note p {
  font-size: .9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: .75rem;
}
.process-note p:last-child { margin-bottom: 0; }
.process-note strong { color: var(--text); }

/* ─── ABOUT ───────────────────────────────────────────────── */
.about {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}
.about-inner {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 5rem;
  align-items: start;
}
.about-photo {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
  object-fit: cover;
}
.about-content { padding-top: .25rem; }
.about-content h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: .01em;
  margin-bottom: 1.5rem;
}
.about-content p {
  color: var(--text-muted);
  font-size: 1.0625rem;
  margin-bottom: 1rem;
  max-width: 560px;
  line-height: 1.7;
}
.about-content .btn { margin-top: 1rem; }


/* ─── TESTIMONIALS ────────────────────────────────────────── */
.testimonials {
  padding: 6rem 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}
.testimonial-card p {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  margin-bottom: 1.25rem;
  font-style: italic;
}
.testimonial-card footer {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.testimonial-card footer strong {
  font-size: .9375rem;
  font-weight: 500;
  color: var(--text);
}
.testimonial-card footer span {
  font-size: .8125rem;
  color: var(--text-muted);
}


/* ─── CONTACT ─────────────────────────────────────────────── */
.contact {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.contact-copy .section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}
.contact-copy > p {
  color: var(--text-muted);
  font-size: 1.0625rem;
  margin-bottom: 2rem;
  max-width: 420px;
  line-height: 1.7;
}
.contact-methods {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.contact-method {
  display: flex;
  align-items: center;
  gap: .875rem;
  padding: .875rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .15s, background .15s;
}
.contact-method:hover {
  border-color: rgba(255, 107, 53, 0.4);
  background: var(--surface-2);
}
.contact-method svg {
  flex-shrink: 0;
  color: var(--accent);
}
.contact-method div {
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.contact-method strong {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text);
}
.contact-method span {
  font-size: .8125rem;
  color: var(--text-muted);
}

/* Contact Form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: .4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .625rem .875rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: .9375rem;
  transition: border-color .15s;
  -webkit-appearance: none;
  appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238B949E' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .875rem center;
  padding-right: 2.5rem;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: .6;
}
.form-note {
  margin-top: .875rem;
  font-size: .8125rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.55;
}
.form-note a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}


/* ─── FOOTER ──────────────────────────────────────────────── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.footer-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.25rem;
  align-items: center;
}
.footer-links a {
  font-size: .875rem;
  color: var(--text-muted);
  transition: color .15s;
}
.footer-links a:hover { color: var(--text); }
.footer-links span {
  font-size: .875rem;
  color: var(--text-muted);
}
.footer-copy {
  font-size: .8125rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}


/* ─── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .usp-grid { grid-template-columns: repeat(2, 1fr); }
  .process-layout { grid-template-columns: 1fr; }
  .process-note { position: static; }
  .about-inner { grid-template-columns: 280px 1fr; gap: 3rem; }
  .contact-inner { gap: 3rem; }
}

@media (max-width: 768px) {
  .header-nav, .header-actions { display: none; }
  .mobile-menu-toggle { display: flex; }

  .hero { padding: 4rem 0; min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-logo-wrap { order: -1; justify-content: flex-start; }
  .logo-img--hero { width: 220px; }

  .services-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .usp-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .about-inner { grid-template-columns: 1fr; gap: 2rem; }

  .testimonials-grid { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
  .footer-top { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  :root { --container: 100%; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}