/* ── TRADESCOOL — Shared Stylesheet ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --black:        #0a0a0a;
  --off-black:    #111111;
  --dark:         #1a1a1a;
  --mid:          #444444;
  --muted:        #888888;
  --border:       #e5e5e5;
  --white:        #ffffff;
  --off-white:    #f7f7f5;
  --accent:       #c0392b;
  --accent-light: #e74c3c;
  --accent-pale:  #fde8e8;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 72px;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { font-size: 1.2rem; font-weight: 800; letter-spacing: -0.03em; color: var(--black); text-decoration: none; }
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav-links a { font-size: 0.875rem; font-weight: 500; color: var(--mid); text-decoration: none; transition: color 0.2s; }
.nav-links a:hover { color: var(--black); }
.nav-links a.active { color: var(--accent); font-weight: 600; }
.nav-cta { background: var(--accent) !important; color: var(--white) !important; padding: 10px 20px; border-radius: 6px; }
.nav-cta:hover { background: var(--accent-light) !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--black); border-radius: 2px; }

/* PAGE HEADER */
.page-header { padding: 140px 48px 80px; background: var(--off-white); border-bottom: 1px solid var(--border); }
.page-header-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.page-header h1 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1.05; color: var(--black); max-width: 700px; margin-bottom: 20px; }
.page-header p { font-size: 1.1rem; line-height: 1.7; color: var(--mid); max-width: 560px; }

/* SECTIONS */
section { padding: 96px 48px; }
.section-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; color: var(--black); margin-bottom: 20px; }
.section-sub { font-size: 1.05rem; line-height: 1.65; color: var(--mid); max-width: 560px; }

/* BUTTONS */
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: var(--white); padding: 14px 28px; border-radius: 8px; font-size: 0.93rem; font-weight: 600; text-decoration: none; transition: background 0.2s, transform 0.15s; border: none; cursor: pointer; font-family: 'Inter', sans-serif; }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); }
.btn-secondary { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--black); padding: 14px 28px; border-radius: 8px; font-size: 0.93rem; font-weight: 600; text-decoration: none; border: 1.5px solid var(--border); transition: border-color 0.2s, transform 0.15s; }
.btn-secondary:hover { border-color: var(--black); transform: translateY(-1px); }
.btn-dark { display: inline-flex; align-items: center; gap: 8px; background: var(--black); color: var(--white); padding: 14px 28px; border-radius: 8px; font-size: 0.93rem; font-weight: 600; text-decoration: none; transition: background 0.2s; }
.btn-dark:hover { background: var(--accent); }

/* LAYOUT */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: var(--off-white); border: 1px solid var(--border); border-radius: 16px; padding: 36px 32px; transition: border-color 0.2s, transform 0.2s; }
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card-icon { font-size: 1.8rem; margin-bottom: 20px; }
.card h3 { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; color: var(--black); margin-bottom: 10px; }
.card p { font-size: 0.9rem; line-height: 1.65; color: var(--mid); }

/* FEATURE VISUAL */
.feature-visual { aspect-ratio: 4/3; background: var(--off-white); border: 1px solid var(--border); border-radius: 16px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: var(--muted); }
.feature-visual .visual-icon { font-size: 3rem; }
.feature-visual .visual-label { font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; }

/* DARK SECTION */
.dark-section { background: var(--off-black); color: var(--white); }
.dark-section .section-label { color: var(--accent-light); }
.dark-section .section-title { color: var(--white); }
.dark-section .section-sub { color: #aaa; }

/* STATS */
.stats-row { display: flex; gap: 48px; flex-wrap: wrap; padding: 48px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin: 48px 0; }
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-number { font-size: 2rem; font-weight: 800; letter-spacing: -0.04em; color: var(--black); }
.stat-label { font-size: 0.75rem; font-weight: 600; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.dark-section .stat-number { color: var(--white); }
.dark-section .stat-label { color: #666; }

/* PROCESS */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.process-steps::before { content: ''; position: absolute; top: 24px; left: 12.5%; right: 12.5%; height: 1px; background: linear-gradient(to right, var(--border), var(--accent-light), var(--border)); }
.process-step { padding-right: 24px; }
.step-num { width: 48px; height: 48px; border-radius: 50%; background: var(--white); border: 1.5px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; font-weight: 700; color: var(--accent); margin-bottom: 28px; position: relative; z-index: 1; }
.process-step h4 { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; color: var(--black); margin-bottom: 10px; }
.process-step p { font-size: 0.87rem; line-height: 1.6; color: var(--muted); }

/* TESTIMONIAL */
.testimonial-band { background: var(--accent); padding: 72px 48px; text-align: center; }
.testimonial-band blockquote { font-size: clamp(1.2rem, 2.5vw, 1.8rem); font-weight: 600; line-height: 1.45; color: var(--white); max-width: 740px; margin: 0 auto 28px; letter-spacing: -0.02em; }
.testimonial-band cite { font-size: 0.85rem; font-style: normal; font-weight: 500; color: rgba(255,255,255,0.65); letter-spacing: 0.05em; text-transform: uppercase; }

/* CTA BAND */
.cta-band { background: var(--off-white); padding: 96px 48px; text-align: center; }
.cta-band .section-title { margin-bottom: 16px; }
.cta-band .section-sub { max-width: 520px; margin: 0 auto 40px; text-align: center; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* FORM */
.form-wrap { background: var(--white); border: 1px solid var(--border); border-radius: 20px; padding: 48px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 0.82rem; font-weight: 600; color: var(--black); letter-spacing: 0.02em; }
.form-group input:not([type="checkbox"]), .form-group select, .form-group textarea { padding: 12px 16px; border: 1.5px solid var(--border); border-radius: 8px; font-family: 'Inter', sans-serif; font-size: 0.93rem; color: var(--black); background: var(--white); transition: border-color 0.2s; appearance: none; -webkit-appearance: none; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.78rem; color: var(--muted); margin-top: 4px; }

/* FOOTER */
footer { background: var(--black); color: rgba(255,255,255,0.4); padding: 56px 48px 40px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 32px; }
.footer-brand .footer-logo { font-size: 1.2rem; font-weight: 800; letter-spacing: -0.03em; color: var(--white); text-decoration: none; display: block; margin-bottom: 16px; }
.footer-brand .footer-logo span { color: var(--accent-light); }
.footer-brand p { font-size: 0.85rem; line-height: 1.65; color: rgba(255,255,255,0.4); max-width: 260px; }
.footer-col h4 { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.6); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.85rem; color: rgba(255,255,255,0.35); text-decoration: none; transition: color 0.2s; }
.footer-col a:hover { color: rgba(255,255,255,0.8); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-bottom span { font-size: 0.78rem; }

/* RESPONSIVE */
@media (max-width: 960px) {
  nav { padding: 0 24px; }
  .nav-links { display: none; flex-direction: column; position: fixed; top: 72px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--border); padding: 24px; gap: 20px; z-index: 99; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  section { padding: 64px 24px; }
  .page-header { padding: 110px 24px 60px; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 40px; }
  .process-steps::before { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .form-wrap { padding: 32px 24px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cta-band, .testimonial-band { padding: 64px 24px; }
}
@media (max-width: 600px) {
  .cards-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .stats-row { gap: 28px; }
  .process-steps { grid-template-columns: 1fr; }
}