/* ============================================
   Unlimited Mechanical — Navy, modern, responsive
   ============================================ */

@font-face {
  font-family: "Algerian";
  src: url("assets/fonts/Algerian%20Regular.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Navy palette */
  --navy-950: #0a1628;
  --navy-900: #0f172a;
  --navy-800: #1e293b;
  --navy-700: #334155;
  --navy-600: #475569;
  --navy-500: #64748b;
  --navy-accent: #1e3a5f;
  --navy-bright: #2563eb;
  --navy-glow: rgba(37, 99, 235, 0.15);

  /* Neutrals */
  --white: #ffffff;
  --off-white: #f8fafc;
  /* Middle ground between navy and white for section backgrounds */
  --bg-mid: #e2eaf4;
  --bg-mid-subtle: #e8eef6;
  /* Slightly darker for card boxes — better text contrast */
  --bg-card: #d1dae8;
  --border-card: rgba(30, 41, 59, 0.18);
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;

  /* Typography — designer / premium feel */
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;
  /* Header & hero branding — Algerian (self-hosted) + Cinzel fallback */
  --font-algerian: "Algerian", "Cinzel", Georgia, serif;

  /* Spacing & rhythm */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 0.35s;
}

/* Reset & base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--navy-800);
  background: var(--bg-mid);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--navy-bright);
  text-decoration: none;
  transition: color var(--duration) var(--ease-out);
}

a:hover {
  color: var(--navy-950);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 var(--space-lg);
  height: 72px;
  display: flex;
  align-items: center;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  animation: slide-down 0.5s var(--ease-out) both;
  box-sizing: border-box;
}

@keyframes slide-down {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  line-height: 0;
  margin-right: auto;
  flex-shrink: 0;
}

.logo img {
  display: block;
  width: auto;
  height: 100px;
  max-height: 100px;
  object-fit: contain;
  object-position: left center;
  transition: opacity var(--duration) var(--ease-out);
}

.logo:hover img {
  opacity: 0.9;
}

/* Desktop nav: lives in header, horizontal links */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav a {
  color: var(--gray-200);
  font-weight: 500;
  font-size: 0.9375rem;
}

.nav a:hover {
  color: var(--white);
}

.cta-link {
  padding: 0.5rem 1rem;
  background: var(--navy-bright);
  color: var(--white) !important;
  border-radius: 8px;
  font-weight: 600;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

.cta-link:hover {
  background: #1d4ed8;
  color: var(--white) !important;
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.5);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-xs);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--white);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--duration) var(--ease-out), opacity var(--duration);
}

.site-header.is-open .nav-toggle span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.site-header.is-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-open .nav-toggle span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile menu overlay: only used on small screens */
.nav-mobile {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-lg);
  background: var(--navy-950);
  overflow: hidden;
}

/* Hero background: fleet photo + navy overlay for readability */
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 22, 40, 0.75) 0%, rgba(10, 22, 40, 0.5) 40%, rgba(10, 22, 40, 0.85) 100%),
    url("assets/hero-fleet.png") center / cover no-repeat;
  pointer-events: none;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--navy-950) 0%, transparent 35%, transparent 65%, var(--navy-950) 100%);
  opacity: 0.5;
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 720px;
}

/* Hero entrance animations */
.hero-content .hero-label {
  animation: fade-in-up 0.7s var(--ease-out) 0.1s both;
}

.hero-content h1 {
  animation: fade-in-up 0.7s var(--ease-out) 0.25s both;
}

.hero-content .hero-tagline {
  animation: fade-in-up 0.7s var(--ease-out) 0.4s both;
}

.hero-content .hero-motto {
  animation: fade-in-up 0.7s var(--ease-out) 0.55s both;
}

.hero-content .hero-actions {
  animation: fade-in-up 0.7s var(--ease-out) 0.7s both;
}

.hero-scroll {
  animation: fade-in 0.8s var(--ease-out) 1s both;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.hero-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 var(--space-md);
}

.hero h1 {
  font-family: var(--font-algerian);
  font-weight: normal;
  font-size: clamp(1.75rem, 4.5vw, 3.25rem);
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--white);
  margin: 0 auto var(--space-md);
  max-width: min(26ch, 100%);
}

.hero-h1-line2 {
  display: block;
  font-size: 0.75em;
  opacity: 0.95;
  margin-top: 0.15em;
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--gray-300);
  margin: 0 0 var(--space-md);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero-motto {
  position: relative;
  display: inline-block;
  font-size: clamp(1.0625rem, 2.2vw, 1.25rem);
  font-weight: 600;
  font-style: italic;
  margin: 0 0 var(--space-xl);
  letter-spacing: 0.02em;
  color: #5c9ce8;
  white-space: nowrap;
}

.hero-motto .motto-char {
  display: inline-block;
  transform-origin: center bottom;
  animation: letter-pop 5s ease-in-out infinite;
}

.hero-motto .motto-char.space {
  width: 0.25em;
}

@keyframes letter-pop {
  0%, 70%, 100% {
    transform: scale(1);
    color: #5c9ce8;
  }
  78% {
    transform: scale(1.35);
    color: rgba(255, 255, 255, 0.98);
  }
  86%, 100% {
    transform: scale(1);
    color: #5c9ce8;
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.75rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  border-radius: 8px;
  transition: background var(--duration) var(--ease-out), color var(--duration) var(--ease-out), transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}

.btn:hover {
  transform: translateY(-3px);
}

.btn-primary:hover {
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
}

.btn-secondary:hover {
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

.btn-primary {
  background: var(--navy-bright);
  color: var(--white);
  border: none;
}

.btn-primary:hover {
  background: #1d4ed8;
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  border-color: var(--white);
  color: var(--white);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--gray-500);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--navy-500), transparent);
  border-radius: 1px;
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.4; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* Sections common */
.section {
  padding: var(--space-3xl) var(--space-lg);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy-bright);
  margin: 0 0 var(--space-sm);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.container.is-visible .section-label {
  opacity: 1;
  transform: translateY(0);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.02em;
  color: var(--navy-950);
  margin: 0 0 var(--space-md);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-out) 0.08s, transform 0.6s var(--ease-out) 0.08s;
}

.container.is-visible .section-title {
  opacity: 1;
  transform: translateY(0);
}

.section-intro {
  font-size: 1.125rem;
  color: var(--navy-600);
  max-width: 560px;
  margin: 0 0 var(--space-2xl);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-out) 0.15s, transform 0.6s var(--ease-out) 0.15s;
}

.container.is-visible .section-intro {
  opacity: 1;
  transform: translateY(0);
}

/* Services */
.services {
  background: var(--bg-mid);
}

.services-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.service-card {
  padding: var(--space-xl);
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border-card);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), border-color var(--duration) var(--ease-out), box-shadow var(--duration) var(--ease-out);
  opacity: 0;
  transform: translateY(20px);
}

.service-card:nth-child(1) { transition-delay: 0.05s; }
.service-card:nth-child(2) { transition-delay: 0.12s; }
.service-card:nth-child(3) { transition-delay: 0.19s; }
.service-card:nth-child(4) { transition-delay: 0.26s; }
.service-card:nth-child(5) { transition-delay: 0.33s; }

.container.is-visible .service-card {
  opacity: 1;
  transform: translateY(0);
}

.service-card:hover {
  border-color: var(--navy-600);
  box-shadow: 0 12px 40px rgba(10, 22, 40, 0.12);
  transform: translateY(-4px);
}

.container.is-visible .service-card:hover {
  transform: translateY(-4px);
}

.service-icon {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--navy-bright);
  margin-bottom: var(--space-sm);
}

.service-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--navy-950);
  margin: 0 0 var(--space-xs);
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--navy-600);
  margin: 0;
  line-height: 1.6;
}

/* Why Us */
.why-us {
  background: var(--navy-950);
  color: var(--white);
}

.why-us .section-label {
  color: var(--navy-bright);
}

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

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.why-card {
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), background var(--duration) var(--ease-out), border-color var(--duration) var(--ease-out);
  opacity: 0;
  transform: translateY(20px);
}

.why-card:nth-child(1) { transition-delay: 0.05s; }
.why-card:nth-child(2) { transition-delay: 0.12s; }
.why-card:nth-child(3) { transition-delay: 0.19s; }
.why-card:nth-child(4) { transition-delay: 0.26s; }

.container.is-visible .why-card {
  opacity: 1;
  transform: translateY(0);
}

.why-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}

.container.is-visible .why-card:hover {
  transform: translateY(-4px);
}

.why-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: -0.02em;
  color: var(--navy-bright);
  opacity: 0.9;
  display: block;
  margin-bottom: var(--space-sm);
}

.why-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--white);
  margin: 0 0 var(--space-xs);
}

.why-card p {
  font-size: 0.9375rem;
  color: var(--gray-300);
  margin: 0;
  line-height: 1.6;
}

/* Sheet Metal & Duct Work */
.sheet-metal {
  background: var(--navy-950);
  color: var(--white);
}

.sheet-metal .section-label {
  color: var(--navy-bright);
}

.sheet-metal .section-title {
  color: var(--white);
}

.sheet-metal .section-intro {
  color: var(--gray-300);
}

.sheet-metal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.sheet-metal-card {
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), background var(--duration) var(--ease-out), border-color var(--duration) var(--ease-out);
  opacity: 0;
  transform: translateY(20px);
}

.sheet-metal-card:nth-child(1) { transition-delay: 0.05s; }
.sheet-metal-card:nth-child(2) { transition-delay: 0.12s; }
.sheet-metal-card:nth-child(3) { transition-delay: 0.19s; }
.sheet-metal-card:nth-child(4) { transition-delay: 0.26s; }

.container.is-visible .sheet-metal-card {
  opacity: 1;
  transform: translateY(0);
}

.sheet-metal-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}

.container.is-visible .sheet-metal-card:hover {
  transform: translateY(-4px);
}

.sheet-metal-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--white);
  margin: 0 0 var(--space-xs);
}

.sheet-metal-card p {
  font-size: 0.9375rem;
  color: var(--gray-300);
  margin: 0;
  line-height: 1.6;
}

/* Contact */
.contact {
  background: var(--bg-mid);
}

.contact-block {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.container.is-visible .contact-block {
  opacity: 1;
  transform: translateY(0);
}

.contact-phone {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.02em;
  color: var(--navy-950);
  margin-bottom: var(--space-sm);
}

.contact-phone:hover {
  color: var(--navy-bright);
}

.contact-note {
  font-size: 0.9375rem;
  color: var(--navy-600);
  margin: 0 0 var(--space-md);
}

.contact-email {
  font-weight: 500;
  color: var(--navy-bright);
}

.contact-email:hover {
  color: var(--navy-950);
}

/* Contact form */
.contact-form {
  max-width: 520px;
  margin: var(--space-2xl) auto 0;
  padding: var(--space-xl);
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border-card);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out) 0.1s, transform 0.6s var(--ease-out) 0.1s;
}

.container.is-visible .contact-form {
  opacity: 1;
  transform: translateY(0);
}

.form-row {
  margin-bottom: var(--space-md);
}

.form-row label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-950);
  margin-bottom: var(--space-xs);
}

.form-row .required {
  color: var(--navy-bright);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--navy-950);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  transition: border-color var(--duration) var(--ease-out);
}

.form-row input::placeholder,
.form-row textarea::placeholder {
  color: var(--navy-500);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--navy-bright);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-row select {
  cursor: pointer;
  appearance: auto;
}

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

.btn-submit {
  width: 100%;
  margin-top: var(--space-sm);
  padding: 1rem;
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.form-status {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9375rem;
  border-radius: 8px;
}

.form-status--success {
  background: rgba(34, 197, 94, 0.15);
  color: #166534;
}

.form-status--error {
  background: rgba(239, 68, 68, 0.15);
  color: #991b1b;
}

/* Footer */
.site-footer {
  padding: var(--space-xl) var(--space-lg);
  background: var(--navy-900);
  color: var(--gray-300);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  margin: 0 0 var(--space-xs);
}

.footer-motto {
  font-size: 0.9375rem;
  font-style: italic;
  font-weight: 500;
  color: var(--navy-bright);
  margin: 0 0 var(--space-xs);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--gray-300);
  margin: 0 0 var(--space-md);
}

.footer-legal {
  font-size: 0.8125rem;
  margin: 0;
  opacity: 0.8;
}

/* Emergency call banner */
.emergency-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background: var(--navy-950);
  border-top: 3px solid var(--navy-bright);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
  transform: translateY(100%);
  transition: transform 0.4s var(--ease-out);
}

.emergency-banner.is-visible {
  transform: translateY(0);
}

.emergency-banner[hidden] {
  display: none !important;
}

.emergency-banner:not([hidden]) {
  display: flex;
}

.emergency-banner-text {
  font-weight: 600;
  color: var(--white);
  font-size: 0.9375rem;
}

.emergency-banner-btn {
  padding: 0.5rem 1.25rem;
  background: var(--navy-bright);
  color: var(--white) !important;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 6px;
  transition: background var(--duration) var(--ease-out);
}

.emergency-banner-btn:hover {
  background: #1d4ed8;
}

.emergency-banner-close {
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--gray-300);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem;
  opacity: 0.8;
  transition: opacity var(--duration);
}

.emergency-banner-close:hover {
  opacity: 1;
  color: var(--white);
}

@media (max-width: 600px) {
  .emergency-banner {
    flex-wrap: wrap;
    padding: var(--space-sm) var(--space-md) var(--space-md);
  }

  .emergency-banner-text {
    width: 100%;
    text-align: center;
  }

  .emergency-banner-btn {
    flex: 1;
  }

  .emergency-banner-close {
    position: static;
    transform: none;
    margin-left: auto;
  }
}

/* Responsive: mobile nav & layout */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .header-inner .nav {
    display: none;
  }

  /* Mobile menu overlay. Uses opacity (not visibility) so in-app WebViews
   * (e.g. Google app on iOS) reliably show/hide it. GPU layer hint for compositing. */
  .nav-mobile {
    display: block;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9998;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    background: rgba(0, 0, 0, 0.4);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
  }

  .nav-mobile.is-open {
    pointer-events: auto;
    opacity: 1;
  }

  /* Slide-out panel: own GPU layer so it paints correctly in WebViews */
  .nav-mobile-inner {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(260px, 78vw);
    background: #0a1628;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.35);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform: translateX(100%) translateZ(0);
    -webkit-transform: translateX(100%) translateZ(0);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    -webkit-transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .nav-mobile.is-open .nav-mobile-inner {
    transform: translateX(0) translateZ(0);
    -webkit-transform: translateX(0) translateZ(0);
  }

  .nav-mobile-inner a {
    color: var(--gray-200);
    font-weight: 500;
    font-size: 1rem;
    padding: 14px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    width: 100%;
    box-sizing: border-box;
    text-decoration: none;
    transition: color var(--duration) var(--ease-out);
  }

  .nav-mobile-inner a:hover {
    color: var(--white);
  }

  .nav-mobile-inner a.cta-link {
    margin-top: 0;
    padding: 14px 20px;
    text-align: center;
    border-radius: 0;
    border: none;
    border-bottom: none;
    background: var(--navy-bright);
    color: var(--white) !important;
    box-shadow: none;
  }

  .nav-mobile-inner a.cta-link:hover {
    background: #1d4ed8;
  }

  .hero-motto {
    white-space: nowrap;
    font-size: clamp(0.875rem, 2.5vw, 1.125rem);
  }

  .hero {
    padding-top: calc(80px + var(--space-2xl));
  }

  .section {
    padding: var(--space-2xl) var(--space-md);
  }

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

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

  .sheet-metal-grid {
    grid-template-columns: 1fr;
  }
}

/* Smooth scrollbar styling (where supported) */
@media (min-width: 1024px) {
  ::-webkit-scrollbar {
    width: 10px;
  }

  ::-webkit-scrollbar-track {
    background: var(--gray-100);
  }

  ::-webkit-scrollbar-thumb {
    background: var(--navy-500);
    border-radius: 5px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: var(--navy-600);
  }
}