/* ═══════════════════════════════════════════════════════════════════════════
   ORO Construction & Design - Global Stylesheet
   Mobile-first. Accessible. SEO/AI friendly. Self-hosted fonts only.
   Palette derived from the ORO logo wordmark.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Self-hosted Inter ─────────────────────────────────────────────────── */
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 400; font-display: swap;
             src: url('/assets/fonts/inter/inter-latin-400.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 500; font-display: swap;
             src: url('/assets/fonts/inter/inter-latin-500.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 600; font-display: swap;
             src: url('/assets/fonts/inter/inter-latin-600.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 700; font-display: swap;
             src: url('/assets/fonts/inter/inter-latin-700.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 800; font-display: swap;
             src: url('/assets/fonts/inter/inter-latin-800.woff2') format('woff2'); }

:root {
  /* Brand */
  --color-primary:      #4A7387;   /* steel blue (logo outer letters) */
  --color-primary-dark: #3A5C6E;
  --color-primary-soft: #E6EDF1;

  --color-accent:       #243A52;   /* dark navy (logo inner letters) */
  --color-accent-dark:  #182838;
  --color-accent-soft:  #DBE2EB;

  /* Neutrals */
  --color-ink:          #1A1A1A;
  --color-ink-soft:     #3A3A3A;
  --color-muted:        #6F7A85;
  --color-line:         #E5E1DA;

  --color-surface:      #FFFFFF;
  --color-surface-alt:  #F5F4F1;   /* warm off-white */
  --color-surface-2:    #EFEDE7;

  --color-dark:         #1A2332;
  --color-dark-2:       #243A52;

  --color-success:      #2E7D5B;
  --color-warning:      #C68B2A;
  --color-danger:       #B23A3A;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-heading: var(--font-sans);

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 12px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-1: 0 2px 8px rgba(36, 58, 82, 0.06);
  --shadow-2: 0 6px 16px rgba(36, 58, 82, 0.10);
  --shadow-3: 0 24px 48px rgba(36, 58, 82, 0.18);

  /* Layout */
  --container: 1200px;
  --header-h: 88px;
}

/* ─── Reset / Base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-ink-soft);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .15s; }
a:hover { color: var(--color-accent); text-decoration: underline; }
h1, h2, h3, h4, h5, h6 { color: var(--color-ink); font-weight: 700; line-height: 1.2; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.625rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
p  { margin: 0 0 1em; }
hr { border: 0; border-top: 1px solid var(--color-line); margin: 2rem 0; }
blockquote {
  margin: 1.5rem 0; padding: 1rem 1.25rem;
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-ink);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
code { font-family: var(--font-mono); font-size: .9em; background: var(--color-surface-2); padding: .12em .38em; border-radius: 4px; }

/* ─── Container ─────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
section { padding: 72px 0; }
section.tight { padding: 48px 0; }
.bg-alt   { background: var(--color-surface-alt); }
.bg-dark  { background: var(--color-accent); color: #fff; }
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4 { color: #fff; }
.bg-dark p, .bg-dark li { color: rgba(255,255,255,.82); }
.text-center { text-align: center; }

/* ─── Skip link ─────────────────────────────────────────────────────────── */
.skip-link {
  position: absolute; left: -9999px; top: 8px; z-index: 10000;
  padding: 12px 18px; background: var(--color-accent); color: #fff;
  border-radius: var(--radius-md); font-weight: 700;
}
.skip-link:focus { left: 16px; }

/* ─── Buttons ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  font: 600 .95rem/1 var(--font-sans);
  letter-spacing: .01em;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .18s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary  { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); color: #fff; }
.btn-secondary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-secondary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; }
.btn-outline  { background: transparent; color: var(--color-accent); border-color: var(--color-accent); }
.btn-outline:hover { background: var(--color-accent); color: #fff; }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-outline-white:hover { background: #fff; color: var(--color-accent); border-color: #fff; }
.btn-light { background: #fff; color: var(--color-accent); border-color: #fff; }
.btn-light:hover { background: var(--color-surface-alt); color: var(--color-accent); }
.btn-lg { padding: 16px 28px; font-size: 1rem; }

/* ─── Header / Nav ──────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; height: var(--header-h);
}
.logo-link { display: inline-flex; flex-direction: column; align-items: flex-start; gap: 0; line-height: 1; text-decoration: none; }
.logo-link:hover { text-decoration: none; }
.logo-link img { height: 35px; width: auto; }
.logo-tagline {
  display: block;
  margin-top: 4px;
  font-family: var(--font-sans);
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--color-muted);
  white-space: nowrap;
}
@media (min-width: 1024px) {
  .logo-link img { height: 43px; }
  .logo-tagline { font-size: .72rem; }
}
.nav-desktop { display: none; }
.nav-list { list-style: none; padding: 0; margin: 0; display: flex; gap: 4px; align-items: center; }
.nav-list > li { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .95rem;
  color: var(--color-ink); text-decoration: none;
  transition: color .15s, background .15s;
}
.nav-link:hover, .nav-link.active { color: var(--color-primary); background: var(--color-primary-soft); text-decoration: none; }
.nav-caret { width: 12px; height: 12px; transition: transform .15s; }
.has-menu:hover .nav-caret { transform: rotate(180deg); }

.nav-submenu {
  position: absolute; top: 100%; left: 0;
  list-style: none; padding: 8px; margin: 0;
  min-width: 240px;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .15s, transform .15s, visibility .15s;
}
.has-menu:hover .nav-submenu,
.has-menu:focus-within .nav-submenu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-submenu li a {
  display: block; padding: 10px 12px;
  color: var(--color-ink); border-radius: var(--radius-sm);
  font-weight: 500; font-size: .92rem; text-decoration: none;
}
.nav-submenu li a:hover { background: var(--color-primary-soft); color: var(--color-primary); }

.nav-phone {
  display: none; align-items: center; gap: 6px;
  padding: 8px 12px;
  font-weight: 600; font-size: .95rem; color: var(--color-accent);
  text-decoration: none;
}
.nav-phone:hover { color: var(--color-primary); text-decoration: none; }

.lang-toggle {
  display: none; align-items: center; gap: 6px;
  padding: 6px 10px;
  font-weight: 600; font-size: .82rem; letter-spacing: .08em;
  color: var(--color-muted);
  text-decoration: none;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
}
.lang-toggle:hover { color: var(--color-accent); border-color: var(--color-accent); text-decoration: none; }
.lang-toggle .is-active { color: var(--color-accent); }
.lang-toggle-sep { color: var(--color-line); }

.nav-cta { display: none; }

.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 4px; justify-content: center;
  width: 44px; height: 44px;
  background: transparent; border: 1px solid var(--color-line);
  border-radius: var(--radius-sm); cursor: pointer;
}
.hamburger-line { display: block; width: 22px; height: 2px; background: var(--color-ink); margin: 0 auto; transition: transform .2s; }

.nav-mobile {
  background: #fff;
  border-top: 1px solid var(--color-line);
  padding: 8px 0 24px;
}
.nav-mobile[hidden] { display: none; }
.mobile-nav-list { list-style: none; padding: 0; margin: 0; }
.mobile-nav-list li { padding: 0 24px; }
.mobile-nav-group {
  text-transform: uppercase; font-size: .75rem; letter-spacing: .12em;
  color: var(--color-muted); padding-top: 16px; padding-bottom: 4px;
}
.mobile-nav-link {
  display: block; padding: 12px 0;
  font-weight: 600; color: var(--color-ink);
  border-bottom: 1px solid var(--color-line);
  text-decoration: none;
}
.mobile-nav-link:hover { color: var(--color-primary); text-decoration: none; }
.mobile-nav-link.active { color: var(--color-primary); }
.mobile-cta-btn {
  margin-top: 16px;
  background: var(--color-accent) !important;
  color: #fff !important;
  text-align: center;
  border-radius: var(--radius-md);
  border-bottom: 0 !important;
}

@media (min-width: 1024px) {
  .nav-desktop { display: block; }
  .nav-cta { display: inline-flex; }
  .nav-phone { display: inline-flex; }
  .lang-toggle { display: inline-flex; }
  .nav-toggle { display: none; }
}

/* ─── Hero ──────────────────────────────────────────────────────────────── */
.hero {
  position: relative; overflow: hidden;
  padding: 96px 0 80px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary-dark) 100%);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  opacity: .25;
}
.hero .container { position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-block; padding: 6px 14px; margin-bottom: 16px;
  background: rgba(255,255,255,.12); color: #fff;
  border-radius: var(--radius-pill);
  font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
}
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero h1 .accent { color: var(--color-primary-soft); }
.hero-sub {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: rgba(255,255,255,.85); max-width: 680px;
  margin: 0 0 28px;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }

/* ─── Section heading ───────────────────────────────────────────────────── */
.section-heading { text-align: center; max-width: 760px; margin: 0 auto 40px; }
.section-heading .eyebrow {
  display: inline-block; padding: 4px 12px; margin-bottom: 14px;
  background: var(--color-primary-soft); color: var(--color-primary-dark);
  border-radius: var(--radius-pill);
  font-size: .75rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
}
.section-heading h2 { margin-bottom: 12px; }
.section-heading p { color: var(--color-muted); font-size: 1.05rem; }

/* ─── Grid + cards ──────────────────────────────────────────────────────── */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.feature-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: var(--color-primary-soft); }
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--color-muted); margin: 0; }
.feature-card .icon-wrap {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; margin-bottom: 16px;
  background: var(--color-primary-soft); color: var(--color-primary-dark);
  border-radius: var(--radius-md);
}
.feature-card .feature-media { border-radius: var(--radius-md); margin-bottom: 16px; }
.feature-card .link-more {
  display: inline-block; margin-top: 12px;
  font-weight: 600; font-size: .9rem; color: var(--color-primary);
}

/* ─── Page hero (interior pages) ────────────────────────────────────────── */
.page-hero-image {
  position: relative;
  background: var(--color-accent) var(--hero-bg) center/cover no-repeat;
  color: #fff;
  padding: 72px 0;
  text-align: center;
}
.page-hero-image::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(36,58,82,.55) 0%, rgba(36,58,82,.85) 100%);
}
.page-hero-image .container { position: relative; }
.page-hero-image h1 { color: #fff; }
.page-hero-image p  { color: rgba(255,255,255,.85); }

/* ─── Breadcrumb ────────────────────────────────────────────────────────── */
.breadcrumb {
  display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap;
  font-size: .85rem; color: rgba(255,255,255,.8);
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb-sep { opacity: .6; }
.breadcrumb [aria-current="page"] { color: #fff; }

/* ─── Footer CTA band ───────────────────────────────────────────────────── */
.footer-cta-band {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  padding: 56px 0;
}
.footer-cta-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px;
}
.footer-cta-text { flex: 1 1 480px; }
.footer-cta-eyebrow {
  display: inline-block; padding: 4px 12px; margin-bottom: 12px;
  background: rgba(255,255,255,.15); color: #fff;
  border-radius: var(--radius-pill);
  font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
}
.footer-cta-text h2 { color: #fff; margin: 0 0 8px; }
.footer-cta-text p  { color: rgba(255,255,255,.85); margin: 0; }
.footer-cta-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.footer-cta-call {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 18px; color: #fff; font-weight: 600;
  border: 1px solid rgba(255,255,255,.4); border-radius: var(--radius-md);
  text-decoration: none;
}
.footer-cta-call:hover { background: rgba(255,255,255,.1); color: #fff; text-decoration: none; }

/* ─── Footer ────────────────────────────────────────────────────────────── */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,.7); }
.footer-main { padding: 56px 0 32px; }
.footer-grid {
  display: grid; gap: 36px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer-brand img { max-width: 200px; height: auto; filter: brightness(0) invert(1); }
.footer-tagline { color: rgba(255,255,255,.65); margin: 12px 0 16px; font-size: .95rem; }
.footer-contact-info { font-style: normal; font-size: .9rem; line-height: 1.7; }
.footer-contact-info a { color: rgba(255,255,255,.85); }
.footer-contact-info a:hover { color: #fff; text-decoration: underline; }
.footer-col h3 {
  color: #fff; font-size: .85rem; letter-spacing: .14em; text-transform: uppercase;
  margin: 0 0 16px;
}
.footer-nav { list-style: none; padding: 0; margin: 0; }
.footer-nav li { margin-bottom: 8px; }
.footer-nav a { color: rgba(255,255,255,.7); font-size: .92rem; }
.footer-nav a:hover { color: #fff; text-decoration: underline; }

.footer-areas { margin-top: 40px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-areas h3 { color: #fff; font-size: .85rem; letter-spacing: .14em; text-transform: uppercase; }
.footer-areas-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: 8px 14px;
  font-size: .9rem;
}
.footer-areas-list a { color: rgba(255,255,255,.7); }
.footer-areas-list a:hover { color: #fff; text-decoration: underline; }

.footer-bottom { background: rgba(0,0,0,.3); padding: 18px 0; font-size: .82rem; }
.footer-bottom-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.footer-copyright, .footer-legal { margin: 0; color: rgba(255,255,255,.55); }
.footer-legal a { color: rgba(255,255,255,.7); }

/* ─── Forms ─────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-weight: 600; color: var(--color-ink); margin-bottom: 6px; font-size: .9rem; }
.form-control {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--color-line); border-radius: var(--radius-sm);
  font: inherit; color: var(--color-ink);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}
.form-help { font-size: .82rem; color: var(--color-muted); margin-top: 4px; }
.form-error { color: var(--color-danger); font-size: .85rem; margin-top: 4px; }

/* ─── Reveal on scroll (used by main.js) ────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

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