/* ============================================
   POSITIONSIZECALCULATORS.COM — Global Styles
   ============================================ */

:root {
  --bg-primary:    #0b0f1a;
  --bg-secondary:  #111827;
  --bg-card:       #161d2e;
  --bg-input:      #1e2840;
  --accent:        #3b82f6;
  --accent-hover:  #2563eb;
  --accent-light:  rgba(59,130,246,0.12);
  --green:         #10b981;
  --red:           #ef4444;
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;
  --border:        #1e293b;
  --border-light:  #263350;
  --radius:        10px;
  --shadow:        0 4px 24px rgba(0,0,0,0.4);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ---- HEADER ---- */
header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.logo span { color: var(--accent); }

nav { display: flex; gap: 6px; align-items: center; }

nav a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.15s;
}

nav a:hover, nav a.active {
  color: var(--text-primary);
  background: var(--accent-light);
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 6px 14px !important;
}

.nav-cta:hover { background: var(--accent-hover) !important; }

/* hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 22px; height: 2px; background: var(--text-secondary); border-radius: 2px; transition: 0.2s; }

/* ---- MAIN ---- */
main { flex: 1; }

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, #0b0f1a 0%, #111827 50%, #0f172a 100%);
  padding: 80px 24px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(59,130,246,0.25);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 18px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 .highlight { color: var(--accent); }

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
}

.hero-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); }

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}
.btn-secondary:hover { color: var(--text-primary); border-color: var(--accent); }

/* ---- SECTION ---- */
.section { padding: 64px 24px; }
.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.section-sub {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 40px;
}
.container { max-width: 1200px; margin: 0 auto; }

/* ---- CALCULATOR CARDS (homepage grid) ---- */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.calc-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.calc-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
}
.calc-card:hover::before { opacity: 1; }

.card-icon {
  width: 44px; height: 44px;
  background: var(--accent-light);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.calc-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.calc-card p { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 20px; line-height: 1.5; }

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
}

/* ---- CALCULATOR PAGE ---- */
.calc-page { padding: 48px 24px; }

.calc-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.calc-header { margin-bottom: 32px; }
.calc-header h1 { font-size: 1.9rem; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 8px; }
.calc-header p { color: var(--text-secondary); }

.calc-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }

label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

input, select {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
  font-family: inherit;
}

input:focus, select:focus { border-color: var(--accent); }

select option { background: var(--bg-card); }

.calc-btn {
  width: 100%;
  margin-top: 24px;
  padding: 14px;
  font-size: 1rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}
.calc-btn:hover { background: var(--accent-hover); }

/* ---- RESULTS ---- */
.results {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 24px;
  display: none;
}

.results.show { display: block; }

.results h3 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.result-item { display: flex; flex-direction: column; gap: 4px; }
.result-label { font-size: 0.78rem; color: var(--text-secondary); font-weight: 500; }
.result-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--green);
  letter-spacing: -0.5px;
}

.result-note {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ---- SEO CONTENT BLOCK ---- */
.content-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 32px;
}

.content-block h2 { font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; }
.content-block p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; margin-bottom: 12px; }
.content-block p:last-child { margin-bottom: 0; }

/* ---- STATS BAR ---- */
.stats-bar {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 32px 24px;
}

.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
}

.stat { text-align: center; }
.stat-number { font-size: 1.8rem; font-weight: 800; color: var(--accent); letter-spacing: -0.5px; }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); font-weight: 500; margin-top: 2px; }

/* ---- HOW IT WORKS ---- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.step-num {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.step h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 6px; }
.step p { font-size: 0.85rem; color: var(--text-secondary); }

/* ---- FOOTER ---- */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 40px 24px 24px;
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 10px;
  max-width: 280px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 8px;
  transition: color 0.15s;
}

.footer-col a:hover { color: var(--text-primary); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

/* ---- AD SLOTS ---- */
.ad-slot {
  background: var(--bg-secondary);
  border: 1px dashed var(--border-light);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin: 24px 0;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  nav { display: none; position: fixed; top: 64px; left: 0; right: 0; background: var(--bg-secondary); padding: 16px; flex-direction: column; border-bottom: 1px solid var(--border); }
  nav.open { display: flex; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .calc-box { padding: 20px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 16px 48px; }
}

/* ---- GUIDE SECTION ---- */
.guide-section { margin-top: 40px; }

.guide-toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 32px;
}

.guide-toc-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.guide-toc ol {
  list-style: none;
  counter-reset: toc;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
}

.guide-toc ol li { counter-increment: toc; }

.guide-toc ol li a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 6px;
  transition: all 0.15s;
}

.guide-toc ol li a::before {
  content: counter(toc);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 700;
}

.guide-toc ol li a:hover {
  color: var(--text-primary);
  border-color: var(--accent);
  background: var(--accent-light);
}

.guide-body { display: flex; flex-direction: column; gap: 24px; }

.guide-body section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  scroll-margin-top: 80px;
}

.guide-body h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--accent);
  color: #fff;
  border-radius: 5px;
  font-size: 0.75rem;
  font-weight: 800;
  flex-shrink: 0;
}

.guide-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 12px;
}

.guide-body p:last-child { margin-bottom: 0; }

.guide-body ul, .guide-body ol {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
  padding-left: 20px;
  margin-bottom: 12px;
}

.guide-body li { margin-bottom: 6px; }
.guide-body strong { color: var(--text-primary); font-weight: 600; }

.guide-body .info-box {
  background: var(--accent-light);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 14px 0;
  line-height: 1.65;
}

.guide-body .info-box strong { color: var(--accent); }

/* ---- FAQ ACCORDION ---- */
.faq-list { display: flex; flex-direction: column; gap: 8px; }

.faq-item {
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
}

.faq-q {
  width: 100%;
  background: var(--bg-input);
  border: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 16px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: inherit;
  transition: background 0.15s;
  gap: 12px;
}

.faq-q:hover { background: var(--border-light); }

.faq-q .faq-icon {
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s;
  line-height: 1;
}

.faq-q.open .faq-icon { transform: rotate(45deg); }

.faq-a {
  display: none;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.faq-a p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 600px) {
  .guide-body section { padding: 20px; }
}

/* ---- DISCLAIMER ---- */
.disclaimer {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 16px;
}