/* ============ DESIGN TOKENS — MOBILE WELDING RESCUE ============
   Rugged industrial identity: dark steel base, urgent red accent,
   ember-orange spark highlights. Blue-collar meets emergency response. */

:root, [data-theme='light'] {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 7rem);

  /* Spacing */
  --space-1: 0.25rem;  --space-2: 0.5rem;   --space-3: 0.75rem;
  --space-4: 1rem;     --space-5: 1.25rem;  --space-6: 1.5rem;
  --space-8: 2rem;     --space-10: 2.5rem;  --space-12: 3rem;
  --space-16: 4rem;    --space-20: 5rem;    --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 1080px;
  --content-wide: 1280px;

  /* Fonts */
  --font-display: 'Anton', 'Impact', 'Oswald', sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', system-ui, sans-serif;

  /* --- LIGHT MODE (industrial steel & rust) --- */
  --color-bg: #f4f2ee;
  --color-surface: #ffffff;
  --color-surface-2: #ebe8e2;
  --color-surface-offset: #e2ddd4;
  --color-divider: #d5cfc4;
  --color-border: #bcb5a6;

  --color-text: #17130e;
  --color-text-muted: #4a423a;
  --color-text-faint: #8a8175;
  --color-text-inverse: #f7f4ef;

  /* Signal red — emergency-response but grounded (not fire-truck bright) */
  --color-primary: #c81f1f;
  --color-primary-hover: #a51616;
  --color-primary-active: #7d0f0f;
  --color-primary-highlight: #f5d6d6;

  /* Ember orange — spark highlights */
  --color-ember: #e77f2b;
  --color-ember-hover: #c96919;

  /* Steel — deep industrial dark for surfaces */
  --color-steel: #14171b;
  --color-steel-2: #1c2026;
  --color-steel-3: #262b33;

  --color-success: #2f7a2f;
  --color-warning: #d97706;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 18px 40px rgba(0,0,0,0.18);
  --shadow-glow: 0 0 0 1px rgba(200,31,31,0.35), 0 8px 32px rgba(200,31,31,0.25);
}

[data-theme='dark'] {
  --color-bg: #0d0f12;
  --color-surface: #14171b;
  --color-surface-2: #1c2026;
  --color-surface-offset: #262b33;
  --color-divider: #2b3038;
  --color-border: #3a4048;

  --color-text: #ececea;
  --color-text-muted: #a09b93;
  --color-text-faint: #6b675f;
  --color-text-inverse: #14171b;

  --color-primary: #e83a3a;
  --color-primary-hover: #ff5757;
  --color-primary-active: #ff7070;
  --color-primary-highlight: rgba(232,58,58,0.15);

  --color-ember: #ffa14a;
  --color-ember-hover: #ffb670;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.6);
  --shadow-lg: 0 18px 40px rgba(0,0,0,0.7);
  --shadow-glow: 0 0 0 1px rgba(232,58,58,0.4), 0 8px 32px rgba(232,58,58,0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0d0f12;
    --color-surface: #14171b;
    --color-surface-2: #1c2026;
    --color-surface-offset: #262b33;
    --color-divider: #2b3038;
    --color-border: #3a4048;
    --color-text: #ececea;
    --color-text-muted: #a09b93;
    --color-text-faint: #6b675f;
    --color-text-inverse: #14171b;
    --color-primary: #e83a3a;
    --color-primary-hover: #ff5757;
    --color-primary-highlight: rgba(232,58,58,0.15);
    --color-ember: #ffa14a;
  }
}

/* ============ LAYOUT ============ */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 4vw, var(--space-12));
}
.container-narrow {
  max-width: 880px;
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 4vw, var(--space-12));
}

section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

/* ============ TYPOGRAPHY ============ */
body { font-family: var(--font-body); }

.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  line-height: 0.95;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 2px;
  background: currentColor;
}

h2.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1;
  margin-top: var(--space-4);
  margin-bottom: var(--space-4);
}

h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.section-lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-12);
}

/* ============ HEADER ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.brand-mark { width: 44px; height: 44px; flex-shrink: 0; }
.brand-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.brand-name .accent { color: var(--color-primary); }
.brand-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-links {
  display: none;
  gap: var(--space-6);
  list-style: none;
}
@media (min-width: 720px) {
  .nav-links { display: flex; }
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.nav-links a:hover { color: var(--color-primary); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.theme-toggle:hover {
  background: var(--color-surface-2);
  border-color: var(--color-text-muted);
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  min-height: 48px;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-inverse {
  background: #fff;
  color: #17130e;
}
.btn-inverse:hover { background: #f0e9dd; }

.btn svg { width: 18px; height: 18px; }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding-block: 0;
  isolation: isolate;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
}
.hero-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8,10,14,0.92) 0%, rgba(8,10,14,0.75) 40%, rgba(8,10,14,0.35) 75%, rgba(8,10,14,0.1) 100%),
    linear-gradient(180deg, rgba(8,10,14,0.4) 0%, rgba(8,10,14,0) 30%, rgba(8,10,14,0.6) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  color: #f7f4ef;
  max-width: 720px;
  padding-block: clamp(var(--space-12), 8vw, var(--space-20));
}
.hero .eyebrow {
  color: var(--color-ember);
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 0.5rem + 5.5vw, 5.5rem);
  font-weight: 400;
  line-height: 0.92;
  text-transform: uppercase;
  letter-spacing: 0.005em;
  margin-block: var(--space-5) var(--space-5);
  color: #ffffff;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.hero-headline .rescue {
  color: var(--color-primary);
  display: inline-block;
  position: relative;
}
.hero-sub {
  font-size: var(--text-base);
  line-height: 1.55;
  color: rgba(247,244,239,0.9);
  margin-bottom: var(--space-6);
  max-width: 56ch;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6) var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(247,244,239,0.15);
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.hero-meta-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(247,244,239,0.55);
}
.hero-meta-value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.hero-meta-value.pulse::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  background: #3ade5c;
  border-radius: 50%;
  margin-right: var(--space-2);
  animation: pulse 2s ease-in-out infinite;
  vertical-align: middle;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(58,222,92,0.6); }
  50% { box-shadow: 0 0 0 8px rgba(58,222,92,0); }
}

/* ============ URGENT CALL STRIP ============ */
.call-strip {
  background: var(--color-primary);
  color: #fff;
  padding-block: var(--space-4);
}
.call-strip-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3) var(--space-8);
  text-align: center;
}
.call-strip-label {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.9;
}
.call-strip-phone {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.03em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.call-strip-phone:hover { text-decoration: underline; text-underline-offset: 6px; }

/* ============ SERVICES ============ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  position: relative;
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.service-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in oklab, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}
.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ============ SERVICE AREA ============ */
.section-dark {
  background: var(--color-steel);
  color: #f7f4ef;
  position: relative;
  overflow: hidden;
}
.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(231,127,43,0.08), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(200,31,31,0.1), transparent 45%);
  pointer-events: none;
}
.section-dark > .container { position: relative; }
.section-dark .section-title { color: #fff; }
.section-dark .section-lead { color: rgba(247,244,239,0.75); }
.section-dark .eyebrow { color: var(--color-ember); }

.area-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}
@media (min-width: 900px) {
  .area-layout { grid-template-columns: 1fr 1.1fr; gap: var(--space-16); }
}
.area-cities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.city-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: all var(--transition-interactive);
}
.city-card:hover {
  border-color: var(--color-primary);
  background: rgba(200,31,31,0.08);
}
.city-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  text-transform: uppercase;
  color: #fff;
  letter-spacing: 0.02em;
}
.city-tag {
  font-size: var(--text-xs);
  color: var(--color-ember);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: var(--space-1);
}

/* Texas map */
.area-map-wrap {
  position: relative;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-6);
}
.tx-map { width: 100%; height: 100%; }

/* ============ GALLERY ============ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-3);
}
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  background: var(--color-surface-2);
  border: 1px solid var(--color-divider);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item.wide { grid-column: span 12; aspect-ratio: 16/9; }
.gallery-item.half { grid-column: span 6; }
.gallery-item.third { grid-column: span 4; }
@media (max-width: 720px) {
  .gallery-item.half, .gallery-item.third { grid-column: span 12; }
}
.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-4) var(--space-5);
  background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.85) 100%);
  color: #fff;
}
.gallery-caption-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.gallery-caption-sub {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-ember);
  font-weight: 700;
  margin-bottom: 2px;
}

/* ============ CONTACT ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 720px) {
  .contact-grid { grid-template-columns: repeat(3, 1fr); }
}
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  text-align: left;
  transition: all var(--transition-interactive);
}
.contact-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.contact-icon svg { width: 22px; height: 22px; }
.contact-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}
.contact-value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
  display: block;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.contact-value:hover { color: var(--color-primary); }
.contact-sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.contact-note {
  text-align: center;
  margin-top: var(--space-12);
  font-size: var(--text-base);
  color: var(--color-text-muted);
}
.contact-note strong { color: var(--color-primary); }
.contact-email-note {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: 0.85rem;
  opacity: 0.65;
  letter-spacing: 0.01em;
}
.contact-email-note a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.contact-email-note a:hover { color: var(--color-primary); opacity: 1; }

/* ============ FOOTER ============ */
.footer {
  background: var(--color-steel);
  color: rgba(247,244,239,0.7);
  padding-block: var(--space-12) var(--space-8);
  border-top: 3px solid var(--color-primary);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}
@media (min-width: 720px) {
  .footer-inner { grid-template-columns: 1.5fr 1fr 1fr; }
}
.footer .brand-name { color: #fff; }
.footer .brand-tag { color: rgba(247,244,239,0.55); }
.footer h4 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #fff;
  margin-bottom: var(--space-3);
}
.footer p, .footer a {
  font-size: var(--text-sm);
  color: rgba(247,244,239,0.7);
  text-decoration: none;
}
.footer a:hover { color: var(--color-primary); }
.footer ul { list-style: none; display: grid; gap: var(--space-2); }
.footer-bottom {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(247,244,239,0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: rgba(247,244,239,0.5);
}

/* ============ REVEAL ANIMATIONS ============ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 800ms cubic-bezier(0.16, 1, 0.3, 1), transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ============ MOBILE TWEAKS ============ */
@media (max-width: 640px) {
  .hero-meta { gap: var(--space-4) var(--space-6); }
  .btn { min-height: 52px; padding: var(--space-4) var(--space-5); font-size: var(--text-sm); }
  .hero-cta .btn { flex: 1 1 auto; }
}