/* ==========================================================
   Tirego and Associates — main stylesheet
   Colours taken from the 2026 company profile.
   ========================================================== */
:root {
  --bg: #211b17;
  --bg-alt: #2b241f;
  --bg-card: #2e2722;
  --line: #4a4037;
  --text: #efe7dc;
  --muted: #a99d90;
  --accent: #e0802f;
  --accent-dark: #c26a1f;
  --gold: #b89355;
  --radius: 2px;
  --max: 1180px;
  --font: "Inter", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: #f19a4f; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { margin: 0 0 20px; line-height: 1.15; text-transform: uppercase; font-weight: 800; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1rem; }
.accent { color: var(--accent); }
.muted { color: var(--muted); }

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #1a1410;
  border: 0;
  padding: 15px 34px;
  font: 700 0.85rem/1 var(--font);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.btn:hover { background: #f19a4f; color: #1a1410; transform: translateY(-1px); }
.btn-small { padding: 11px 20px; font-size: 0.72rem; }
.btn:disabled { opacity: 0.6; cursor: wait; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
  padding: 18px 0;
}
.site-header.scrolled {
  background: rgba(28, 23, 19, 0.96);
  box-shadow: 0 1px 0 var(--line);
  padding: 10px 0;
  backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo-img { height: 56px; width: auto; }
.logo-text { flex-direction: column; align-items: center; color: var(--text); }
.logo-word { font-size: 1.8rem; font-weight: 500; letter-spacing: 0.12em; display: flex; align-items: center; line-height: 1; }
.logo-e { display: inline-flex; flex-direction: column; justify-content: space-between; height: 0.72em; width: 0.6em; margin: 0 0.12em; }
.logo-e i { display: block; height: 3px; background: var(--gold); }
.logo-sub { font-size: 0.55rem; letter-spacing: 0.2em; color: var(--muted); margin-top: 6px; }

.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav a:not(.btn) {
  color: var(--text); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase; position: relative;
}
.site-nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--accent); transition: width 0.25s;
}
.site-nav a:not(.btn):hover::after, .site-nav a.active::after { width: 100%; }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 26px; height: 2px; background: var(--text); margin: 6px 0; transition: transform 0.3s, opacity 0.3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: flex-end;
  padding: 160px 0 120px;
  /* Image falls back to the gradient if images/hero.jpg is missing */
  background:
    linear-gradient(180deg, rgba(33,27,23,0.55) 0%, rgba(33,27,23,0.35) 40%, rgba(33,27,23,0.95) 100%),
    url("../images/hero.jpg") center / cover no-repeat,
    radial-gradient(ellipse at 70% 30%, #7a4a26 0%, #3b2a1e 45%, #1c1612 100%);
  overflow: hidden;
}
.hero-lines {
  position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,0.22) 0 1px, transparent 1px 14px);
}
.hero-content { position: relative; }
.hero .lead { max-width: 560px; font-size: 1.15rem; color: #d4c8ba; margin: 0 0 36px; }
.pill-row { display: flex; flex-wrap: wrap; gap: 14px; }
.pill {
  border: 1px solid var(--accent); color: var(--accent);
  padding: 13px 36px; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.35em;
  text-transform: uppercase; transition: background 0.2s, color 0.2s;
}
.pill:hover { background: var(--accent); color: #1a1410; }

.scroll-cue { position: absolute; left: 50%; bottom: 32px; transform: translateX(-50%); width: 26px; height: 42px; border: 2px solid var(--muted); border-radius: 14px; }
.scroll-cue span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; background: var(--accent); border-radius: 2px; animation: cue 1.8s infinite; }
@keyframes cue { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(14px); } }

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
section[id] { scroll-margin-top: 30px; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.intro-text { max-width: 760px; color: var(--muted); font-size: 1.1rem; }
.intro-text p { margin: 0 0 16px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 40px; }
.stat { padding: 0 32px; border-left: 1px solid var(--line); }
.stat:first-child { padding-left: 0; border-left: 0; }
.stat-num { color: var(--accent); font-size: clamp(2.4rem, 5vw, 3.4rem); font-weight: 800; line-height: 1; }
.stat-num small { font-size: 1rem; margin-left: 6px; }
.stat-label { font-weight: 700; text-transform: uppercase; font-size: 0.85rem; margin: 14px 0 4px; }
.stat p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* Rail section */
.rail-section {
  background:
    linear-gradient(180deg, rgba(33,27,23,0.88), rgba(33,27,23,0.96)),
    url("../images/rail-night.jpg") center / cover no-repeat,
    linear-gradient(135deg, #2b1f15, #1c1612);
  position: relative;
}
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 40px; }
.split-item { border-left: 3px solid var(--line); padding: 6px 0 6px 24px; }
.split-item h4 { letter-spacing: 0.3em; font-size: 0.85rem; color: var(--muted); }
.split-item p { color: var(--muted); margin: 0; font-size: 1.05rem; }
.split-item.highlight { border-color: var(--accent); }
.split-item.highlight h4 { color: var(--accent); }
.split-item.highlight p { color: var(--text); }

/* Service cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; }
.card { background: var(--bg-card); border: 1px solid var(--line); transition: transform 0.3s, border-color 0.3s; }
.card:hover { transform: translateY(-6px); border-color: var(--accent); }
.card-img { position: relative; aspect-ratio: 1 / 0.95; background-size: cover; background-position: center; }
.img-production { background-image: url("../images/production.jpg"), linear-gradient(160deg, #6b3e22, #2a1d14); }
.img-rail       { background-image: url("../images/rail.jpg"), linear-gradient(160deg, #5a4426, #17120e); }
.img-port       { background-image: url("../images/port.jpg"), linear-gradient(160deg, #24384f, #6d3e22); }
.card-num { position: absolute; top: 0; left: 0; background: var(--accent); color: #1a1410; font-weight: 700; padding: 10px 14px; font-size: 0.9rem; }
.card-body { padding: 28px 26px 32px; }
.card-body h3 { font-size: 1.05rem; }
.card-body p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* Chain */
.chain { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: none; }
.chain li { border-top: 1px solid var(--line); padding-top: 22px; position: relative; }
.chain li::before { content: ""; position: absolute; top: -1px; left: 0; width: 0; height: 2px; background: var(--accent); transition: width 0.8s ease; }
.chain li.visible::before { width: 100%; }
.chain span { color: var(--accent); font-weight: 700; font-size: 0.85rem; }
.chain h4 { margin: 8px 0 6px; }
.chain p { color: var(--muted); margin: 0; font-size: 0.9rem; }

/* Banner */
.banner {
  padding: 120px 0;
  background:
    linear-gradient(90deg, rgba(33,27,23,0.95) 30%, rgba(33,27,23,0.6)),
    url("../images/banner.jpg") center / cover no-repeat,
    linear-gradient(135deg, #3a2618, #1c1612);
}
.banner-inner { border-left: 4px solid var(--accent); padding-left: 32px; max-width: 640px; }
.banner-inner p { color: var(--muted); font-size: 1.1rem; margin: 0; }

/* Track record table */
.table-wrap { margin-top: 30px; overflow-x: auto; }
.record { width: 100%; border-collapse: collapse; }
.record th { text-align: left; font-size: 0.75rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); font-weight: 600; padding: 14px 12px 14px 0; border-bottom: 1px solid var(--line); }
.record td { padding: 22px 12px 22px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.record td strong { color: var(--text); }
.record .num { text-align: right; color: var(--accent); font-weight: 700; white-space: nowrap; }
.record th.num { color: var(--muted); }
.record tbody tr { transition: background 0.2s; }
.record tbody tr:hover { background: rgba(224,128,47,0.05); }
.note { font-style: italic; color: var(--muted); font-size: 0.9rem; margin-top: 18px; }

/* Reasons */
.reasons { display: grid; grid-template-columns: 1fr 1fr; gap: 0 60px; margin-top: 30px; }
.reason { display: flex; gap: 22px; border-top: 1px solid var(--line); padding: 24px 0; }
.reason span { color: var(--accent); font-weight: 800; font-size: 1.6rem; line-height: 1; }
.reason p { margin: 0; color: var(--muted); }

/* Approach */
.approach-section {
  background:
    linear-gradient(180deg, rgba(33,27,23,0.9), rgba(33,27,23,0.95)),
    url("../images/approach.jpg") center / cover no-repeat,
    linear-gradient(135deg, #1f2a33, #211b17);
}

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px; align-items: start; }
.contact-details { margin: 36px 0 0; display: grid; gap: 20px; }
.contact-details dt { color: var(--accent); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.3em; text-transform: uppercase; }
.contact-details dd { margin: 4px 0 0; color: var(--text); }
.contact-form { background: var(--bg-card); border: 1px solid var(--line); padding: 36px; display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: grid; gap: 8px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--line); color: var(--text);
  padding: 13px 14px; font: 400 1rem var(--font); border-radius: var(--radius);
  letter-spacing: normal; text-transform: none; transition: border-color 0.2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); }
.contact-form .invalid { border-color: #d9534f; }
.contact-form textarea { resize: vertical; }
.contact-form .btn { justify-self: start; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { margin: 0; font-size: 0.95rem; min-height: 1.4em; }
.form-status.ok { color: #7cc47c; }
.form-status.err { color: #e57373; }

/* Footer */
.site-footer { padding: 30px 0; border-top: 1px solid var(--line); font-size: 0.85rem; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.footer-inner p { margin: 0; }

/* Reveal-on-scroll animation */
/* Content is only hidden once main.js is running, so it can never get stuck invisible */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.js .reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .chain li::before { width: 100%; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav-toggle { display: block; z-index: 2; }
  .site-nav {
    position: fixed; inset: 0; background: rgba(28,23,19,0.98);
    flex-direction: column; justify-content: center; gap: 30px;
    opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s;
  }
  .site-nav.open { opacity: 1; visibility: visible; }
  .site-nav a:not(.btn) { font-size: 1.1rem; }
  .cards { grid-template-columns: 1fr; max-width: 520px; }
  .chain { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .contact-grid { grid-template-columns: 1fr; gap: 50px; }
}

@media (max-width: 720px) {
  .section { padding: 80px 0; }
  .container { padding: 0 16px; }
  .stats { grid-template-columns: 1fr; gap: 34px; }
  .stat { padding: 0; border-left: 0; border-top: 1px solid var(--line); padding-top: 24px; }
  .stat:first-child { border-top: 0; padding-top: 0; }
  .split, .reasons { grid-template-columns: 1fr; gap: 30px; }
  .reasons { gap: 0; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
  .pill { padding: 12px 22px; letter-spacing: 0.25em; }

  /* Stack table rows into cards on phones */
  .record thead { display: none; }
  .record, .record tbody, .record tr, .record td { display: block; width: 100%; }
  .record tr { border-bottom: 1px solid var(--line); padding: 16px 0; }
  .record td { border: 0; padding: 4px 0; text-align: left !important; }
  .record td::before { content: attr(data-label); display: block; font-size: 0.7rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--muted); opacity: 0.7; }
}