/* ===================================
   SkillsForResume.com — main.css
   =================================== */

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

/* --- CSS Variables --- */
:root {
  --color-navy:   #0B1A2C;
  --color-blue:   #1A3A5C;
  --color-accent: #F5C518;
  --color-bg:     #F8F9FB;
  --color-white:  #FFFFFF;
  --color-text:   #374151;
  --color-muted:  #6B7280;
  --color-border: #E5E7EB;
  --color-green:  #10B981;
  --color-orange: #F59E0B;
  --color-red:    #EF4444;

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 1px 4px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-card: 0 2px 8px rgba(0,0,0,.06), 0 8px 32px rgba(0,0,0,.04);
  --transition: 0.18s ease;
  --max-w: 1160px;
  --header-h: 64px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }

/* --- Typography --- */
h1, .h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h2, .h2 { font-size: clamp(1.5rem, 3vw, 2rem);  font-weight: 700; line-height: 1.25; letter-spacing: -0.015em; }
h3, .h3 { font-size: 1.2rem;  font-weight: 600; line-height: 1.3; }
h4, .h4 { font-size: 1rem;    font-weight: 600; line-height: 1.4; }
p       { max-width: 72ch; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }

/* --- Layout Utilities --- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius);
  font-size: 0.9375rem; font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent); color: var(--color-navy);
}
.btn-primary:hover { background: #e6b800; transform: translateY(-1px); }
.btn-outline {
  background: transparent; color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.35);
}
.btn-outline:hover { border-color: var(--color-white); background: rgba(255,255,255,0.08); }
.btn-ghost {
  background: transparent; color: var(--color-navy);
  border: 2px solid var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-navy); }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-sm { padding: 8px 16px; font-size: 0.8125rem; }

/* --- Cards --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

/* --- Skill Chip --- */
.skill-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition);
  cursor: default;
}
.skill-chip:hover { background: var(--color-white); border-color: var(--color-blue); border-left-color: var(--color-accent); }
.skill-chip.matched { border-left-color: var(--color-green); background: #F0FDF4; color: #065F46; }
.skill-chip.missing { border-left-color: var(--color-border); color: var(--color-muted); background: var(--color-bg); }

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.8125rem; color: var(--color-muted);
  padding: 12px 0;
}
.breadcrumb a:hover { color: var(--color-blue); }
.breadcrumb-sep { color: var(--color-border); }

/* --- Accordion / FAQ --- */
.accordion-item {
  border-bottom: 1px solid var(--color-border);
}
.accordion-btn {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 18px 0; text-align: left;
  font-size: 0.9375rem; font-weight: 600; color: var(--color-navy);
  background: none; border: none; cursor: pointer;
  transition: color var(--transition);
}
.accordion-btn:hover { color: var(--color-blue); }
.accordion-btn .chev {
  width: 20px; height: 20px; flex-shrink: 0;
  transition: transform var(--transition);
}
.accordion-item.open .accordion-btn .chev { transform: rotate(180deg); }
.accordion-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.28s ease, padding 0.28s ease;
}
.accordion-item.open .accordion-body { max-height: 500px; }
.accordion-body p {
  padding-bottom: 18px;
  font-size: 0.9375rem; color: var(--color-muted); line-height: 1.7;
}

/* --- Badge --- */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 100px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.02em;
}
.badge-green  { background: #ECFDF5; color: #065F46; }
.badge-blue   { background: #EFF6FF; color: #1E40AF; }
.badge-orange { background: #FFFBEB; color: #92400E; }
.badge-red    { background: #FEF2F2; color: #991B1B; }

/* --- Section Labels --- */
.section-label {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-muted); margin-bottom: 12px;
}

/* --- Underline Accent --- */
.underline-accent {
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

/* --- Skill List Grid (2-column) --- */
.skill-list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .skill-list { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .btn { width: 100%; justify-content: center; }
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-muted  { color: var(--color-muted); }
.text-navy   { color: var(--color-navy); }
.text-accent { color: var(--color-accent); }
.bg-navy     { background: var(--color-navy); color: var(--color-white); }
.bg-white    { background: var(--color-white); }
.mt-8   { margin-top: 8px; }
.mt-12  { margin-top: 12px; }
.mt-16  { margin-top: 16px; }
.mt-24  { margin-top: 24px; }
.mt-32  { margin-top: 32px; }
.mt-48  { margin-top: 48px; }
.mb-8   { margin-bottom: 8px; }
.mb-12  { margin-bottom: 12px; }
.mb-16  { margin-bottom: 16px; }
.mb-24  { margin-bottom: 24px; }
.mb-32  { margin-bottom: 32px; }
.mb-48  { margin-bottom: 48px; }
.w-full { width: 100%; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ── Focus Accessibility ── */
:focus-visible {
  outline: 2px solid #2B4FE8;
  outline-offset: 3px;
  border-radius: 3px;
}
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid #2B4FE8;
  outline-offset: 3px;
  border-radius: 4px;
  box-shadow: 0 0 0 4px rgba(43,79,232,.15);
}