/* ============================================================
   Datco Manufacturing — style.css
   Single-page, mobile-first responsive design
   Primary: #1B4F8A | Accent: #C8913A | Dark: #1C1C1C | Light: #F4F6F9
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --color-primary:    #1B4F8A;
  --color-primary-dk: #153d6e;
  --color-accent:     #C8913A;
  --color-accent-dk:  #a97328;
  --color-dark:       #1C1C1C;
  --color-mid:        #4A4A4A;
  --color-light-bg:   #F4F6F9;
  --color-white:      #ffffff;
  --color-border:     #dde2ea;

  --font-base: 'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.12), 0 2px 4px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,.15);

  --transition: 0.25s ease;
  --max-width: 1200px;
  --section-pad: 90px 20px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-base);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; color: var(--color-dark); }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }

p { margin-bottom: 1rem; color: var(--color-mid); }
p:last-child { margin-bottom: 0; }

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}
.section-title { margin-bottom: 1rem; color: var(--color-dark); }
.section-subtitle {
  max-width: 600px;
  font-size: 1.05rem;
  color: var(--color-mid);
  margin-bottom: 2.5rem;
}
.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-base);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.6);
}
.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

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

.btn-lg { padding: 1rem 2.25rem; font-size: 1.05rem; }

/* ============================================================
   HEADER / NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 72px;
  padding: 0 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-logo { flex-shrink: 0; display: flex; align-items: center; }
.site-logo img { height: 48px; width: auto; }

.main-nav { display: none; gap: 0.25rem; }
.main-nav a {
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-dark);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.main-nav a:hover { color: var(--color-primary); background: rgba(27,79,138,.06); }

.header-actions { display: none; align-items: center; gap: 1.25rem; flex-shrink: 0; }
.header-phone {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}
.header-phone:hover { color: var(--color-accent); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: none; border: none; cursor: pointer;
  padding: 4px; border-radius: var(--radius-sm);
}
.nav-toggle span { display: block; height: 2px; background: var(--color-dark); border-radius: 2px; transition: all 0.3s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  top: 72px; left: 0; right: 0; bottom: 0;
  background: var(--color-white);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  gap: 0.5rem;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(.4,0,.2,1);
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
  padding: 1rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--color-primary); }
.mobile-nav .btn { margin-top: 1.5rem; width: 100%; justify-content: center; }

@media (min-width: 900px) {
  .main-nav { display: flex; }
  .header-actions { display: flex; }
  .nav-toggle { display: none; }
}

/* ============================================================
   HERO — VERTICAL SPLIT
   ============================================================ */
.hero {
  display: flex;
  flex-direction: column;
  min-height: 92vh;
  overflow: hidden;
  padding: 0;
}

/* Left: dark navy content panel */
.hero-panel {
  background: var(--color-primary-dk);
  display: flex;
  align-items: center;
  padding: 80px 20px 70px;
  flex: 1;
}

.hero-panel-inner {
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
}

/* Right: photo */
.hero-image {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  flex-shrink: 0;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  position: absolute;
  inset: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(200,145,58,.18);
  border: 1px solid rgba(200,145,58,.45);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}
.hero h1 span { color: var(--color-accent); }

.hero-sub {
  color: rgba(255,255,255,.85);
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* Desktop: true 50/50 side-by-side vertical split */
@media (min-width: 900px) {
  .hero {
    flex-direction: row;
  }
  .hero-panel {
    flex: 0 0 50%;
    padding: 80px max(48px, calc((100vw - 1200px) / 2 + 48px));
  }
  .hero-panel-inner {
    margin: 0;
    max-width: 100%;
  }
  .hero-image {
    flex: 0 0 50%;
    min-height: 92vh;
  }
}

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar { background: var(--color-primary); padding: 0; }
.trust-bar-inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-left: 1px solid rgba(255,255,255,.1);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1.25rem 1.5rem;
  border-right: 1px solid rgba(255,255,255,.1);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.trust-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 40px; height: 40px;
  background: rgba(255,255,255,.12);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.trust-text strong { display: block; color: var(--color-white); font-size: 0.9rem; font-weight: 700; line-height: 1.3; }
.trust-text span { color: rgba(255,255,255,.7); font-size: 0.78rem; }

@media (min-width: 640px) {
  .trust-bar-inner { grid-template-columns: repeat(4, 1fr); }
  .trust-item { border-bottom: none; }
}

/* ============================================================
   SECTIONS
   ============================================================ */
section { padding: var(--section-pad); }
.section-light { background: var(--color-light-bg); }

/* ============================================================
   CARD GRID (services + products)
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 600px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 54px; height: 54px;
  border-radius: var(--radius-md);
  background: rgba(27,79,138,.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}
.service-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; color: var(--color-dark); }
.service-card p { font-size: 0.9rem; color: var(--color-mid); margin-bottom: 0; }

/* ============================================================
   ABOUT — TWO COLUMN
   ============================================================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
.two-col-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.two-col-img img { width: 100%; height: 420px; object-fit: cover; display: block; }

@media (min-width: 900px) { .two-col { grid-template-columns: 1fr 1fr; } }

/* ============================================================
   APPLICATION TAGS (services)
   ============================================================ */
.app-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; }
.app-tag {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 0.35rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-mid);
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  position: relative;
  aspect-ratio: 4/3;
  background: var(--color-light-bg);
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}
.gallery-item:hover img { transform: scale(1.04); }
.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,.75));
  color: var(--color-white);
  padding: 2.5rem 1.25rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
}
.gallery-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.75rem; font-size: 0.9rem; font-weight: 600;
  color: var(--color-mid); text-align: center; padding: 1.5rem;
}
.gallery-placeholder-icon { font-size: 2.5rem; opacity: 0.4; }
.gallery-placeholder-note { font-size: 0.75rem; font-weight: 400; opacity: 0.65; font-style: italic; }

@media (min-width: 600px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}
.contact-phone-cta {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  margin-bottom: 1.5rem;
}
.contact-phone-cta p { color: rgba(255,255,255,.8); margin-bottom: 0.5rem; font-size: 0.9rem; }
.contact-phone-num {
  display: block;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-white);
  transition: color var(--transition);
  margin-bottom: 0.25rem;
}
.contact-phone-num:hover { color: var(--color-accent); }

.contact-detail-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.contact-detail-row {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
.contact-detail-row:last-child { border-bottom: none; }
.contact-detail-row:hover { background: var(--color-light-bg); }
.contact-detail-icon {
  width: 44px; height: 44px;
  background: rgba(27,79,138,.08);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.contact-detail-label {
  font-size: 0.73rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--color-accent); margin-bottom: 0.2rem;
}
.contact-detail-value { font-size: 0.95rem; color: var(--color-dark); font-weight: 500; }
.contact-detail-value a { color: var(--color-primary); transition: color var(--transition); }
.contact-detail-value a:hover { color: var(--color-accent); }

.map-embed {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 4px solid var(--color-white);
}
.map-embed iframe { width: 100%; height: 440px; display: block; border: 0; }

@media (min-width: 900px) { .contact-layout { grid-template-columns: 1fr 1fr; } }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dk) 0%, var(--color-primary) 100%);
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(-45deg, transparent, transparent 20px, rgba(255,255,255,.02) 20px, rgba(255,255,255,.02) 40px);
}
.cta-banner .container { position: relative; }
.cta-banner h2 { color: var(--color-white); margin-bottom: 0.75rem; }
.cta-banner p { color: rgba(255,255,255,.8); font-size: 1.05rem; margin-bottom: 2rem; }
.cta-btns { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #111827;
  color: rgba(255,255,255,.88);
  padding: 70px 20px 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-bottom: 3rem;
}
@media (min-width: 640px) { .footer-grid { grid-template-columns: 2fr 1fr; } }

.footer-logo {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  display: inline-block;
  padding: 1.25rem 1.75rem;
  margin-bottom: 1.75rem;
}
.footer-logo img { height: 52px; width: auto; display: block; }
.footer-desc {
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
  color: rgba(255,255,255,.8);
}
.footer-col h4 {
  color: var(--color-white);
  font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 1.25rem; padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}
.footer-links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { font-size: 0.92rem; color: rgba(255,255,255,.75); transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent); }
.footer-contact-item {
  display: flex; gap: 0.75rem; align-items: flex-start;
  margin-bottom: 0.875rem; font-size: 0.92rem;
  color: rgba(255,255,255,.8);
}
.footer-contact-item .fi { flex-shrink: 0; margin-top: 0.1rem; }
.footer-contact-item a { color: rgba(255,255,255,.8); transition: color var(--transition); }
.footer-contact-item a:hover { color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 1.25rem 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  justify-content: space-between; align-items: center;
  font-size: 0.82rem; color: rgba(255,255,255,.5);
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger > *.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   UTILITIES
   ============================================================ */
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

@media (max-width: 480px) {
  :root { --section-pad: 60px 16px; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .cta-btns { flex-direction: column; align-items: center; }
}

@media print {
  .site-header, .site-footer, .cta-banner, .hero { display: none !important; }
  body { color: #000; }
}