/* ============================================================
   ALUMINUM COIL TRADING — GLOBAL STYLESHEET
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=Barlow:wght@300;400;500;600&display=swap');

:root {
  --clr-bg:        #f5f7fa;
  --clr-surface:   #ffffff;
  --clr-panel:     #eef3f7;
  --clr-border:    #d6dde6;
  --clr-accent:    #c40000;
  --clr-accent-lt: #e03131;
  --clr-accent-dk: #8f0000;
  --clr-secondary: #0f4c81;
  --clr-secondary-lt: #2f6d9b;
  --clr-silver:    #8f949c;
  --clr-text:      #374151;
  --clr-heading:   #1f2937;
  --clr-muted:     #6b7280;
  --font-display:  'Barlow Condensed', sans-serif;
  --font-body:     'Barlow', sans-serif;
  --max-w:         1200px;
  --radius:        4px;
  --transition:    0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--clr-heading);
  line-height: 1.1;
  letter-spacing: 0.02em;
}
h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); font-weight: 800; text-transform: uppercase; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; text-transform: uppercase; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 600; }
p  { color: var(--clr-text); }
a  { color: inherit; text-decoration: none; }

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-accent);
  display: block;
  margin-bottom: 0.6rem;
}

.section-title { margin-bottom: 1rem; }
.section-lead {
  font-size: 1.05rem;
  color: var(--clr-silver);
  max-width: 640px;
  margin-bottom: 2.5rem;
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: 5rem 0; }
.section--alt { background: var(--clr-surface); }
.section--dark { background: var(--clr-panel); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 1.8rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--clr-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--clr-accent-lt);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(196,0,0,0.22);
}
.btn-outline {
  background: transparent;
  color: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
}
.btn-outline:hover {
  background: var(--clr-accent);
  color: #fff;
  transform: translateY(-2px);
}

/* ── Divider line ── */
.accent-line {
  width: 48px; height: 3px;
  background: var(--clr-accent);
  display: block;
  margin-bottom: 1.5rem;
}

/* ── Card ── */
.card {
  background: var(--clr-panel);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color var(--transition), transform var(--transition);
}
.card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-4px);
}

/* ── Grid helpers ── */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; }

/* ── Tag / badge ── */
.tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.7rem;
  border-radius: 2px;
  background: rgba(196,0,0,0.08);
  color: var(--clr-accent);
  border: 1px solid rgba(196,0,0,0.2);
}

/* ── Spec table ── */
.spec-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.spec-table td {
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--clr-border);
  font-size: 0.9rem;
}
.spec-table td:first-child {
  color: var(--clr-muted);
  font-weight: 500;
  width: 40%;
}
.spec-table td:last-child { color: var(--clr-heading); font-weight: 600; }

/* ── Form ── */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-silver);
  margin-bottom: 0.4rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--clr-panel);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
  color: var(--clr-heading);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition);
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(196,0,0,0.12);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.25rem; }

/* ── Success message ── */
.form-success {
  display: none;
  background: rgba(46,160,67,0.12);
  border: 1px solid rgba(46,160,67,0.4);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  color: #6fd888;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-align: center;
  margin-top: 1rem;
}

/* ── Page hero (inner pages) ── */
.page-hero {
  padding: 6rem 0 3.5rem;
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  right: -10%;
  top: -30%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(15,76,129,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 { margin-bottom: 0.75rem; }
.page-hero p { color: var(--clr-silver); font-size: 1.1rem; max-width: 560px; }

/* ── Breadcrumb ── */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--clr-muted);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--clr-accent); }
.breadcrumb span { margin: 0 0.4rem; }

/* ── Check list ── */
.check-list { list-style: none; padding: 0; }
.check-list li {
  padding: 0.35rem 0 0.35rem 1.8rem;
  position: relative;
  color: var(--clr-text);
}
.check-list li::before {
  content: '✓';
  position: absolute; left: 0;
  color: var(--clr-accent);
  font-weight: 700;
}

/* ── Stat box ── */
.stat-box {
  text-align: center;
  padding: 2rem 1.5rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  background: var(--clr-panel);
}
.stat-box .number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--clr-accent);
  display: block;
  line-height: 1;
  margin-bottom: 0.4rem;
}
.stat-box .label {
  font-size: 0.85rem;
  color: var(--clr-silver);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 3px; }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.6s ease both; }
.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.2s; }
.fade-up-3 { animation-delay: 0.3s; }
.fade-up-4 { animation-delay: 0.4s; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .section { padding: 3.5rem 0; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}