/* ============================================
   BOT THE BUILDERS — shared design system
   ============================================ */

:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --bg-card: #ffffff;
  --text: #0a0e1a;
  --text-muted: #5b6478;
  --primary: #0a0e1a;
  --accent: #ff6b2c;
  --accent-hover: #e55a1f;
  --accent-soft: #fff4ed;
  --border: #e6e8ee;
  --border-strong: #d0d4dd;
  --success: #10b981;
  --warning: #f59e0b;
  --shadow-sm: 0 1px 2px rgba(10, 14, 26, 0.04);
  --shadow-md: 0 4px 12px rgba(10, 14, 26, 0.06);
  --shadow-lg: 0 10px 40px rgba(10, 14, 26, 0.08);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.25rem; }

p { color: var(--text); }
.muted { color: var(--text-muted); }

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

/* ============================================
   HEADER + NAV
   ============================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 5px;
  font-size: 1.15rem; font-weight: 800; letter-spacing: -0.02em;
  color: var(--primary);
  white-space: nowrap;
}
@media (max-width: 520px) {
  .logo { font-size: 1rem; }
}
.logo-dot {
  display: inline-block; width: 9px; height: 9px;
  border-radius: 50%; background: var(--accent);
  margin-top: 4px;
}
.nav-links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--primary); color: white;
  padding: 9px 18px; border-radius: var(--radius);
  font-weight: 600; font-size: 0.95rem;
  transition: transform 0.1s;
}
.nav-cta:hover { transform: translateY(-1px); color: white !important; }

@media (max-width: 720px) {
  .nav-links li:not(:last-child) { display: none; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600; font-size: 1rem;
  cursor: pointer; border: none;
  transition: all 0.15s;
}
.btn-primary {
  background: var(--accent); color: white;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: var(--primary); color: white;
}
.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { background: var(--bg-soft); }

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, #fff8f3 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}
.hero-inner { max-width: 880px; margin: 0 auto; text-align: center; }
.hero-eyebrow {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: 24px;
}
.hero h1 {
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text) 0%, #2a2f3d 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero h1 .accent { color: var(--accent); -webkit-text-fill-color: var(--accent); }
.hero-sub {
  font-size: 1.25rem; color: var(--text-muted);
  max-width: 600px; margin: 0 auto 36px;
}
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ============================================
   SECTION
   ============================================ */
.section { padding: 80px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--text-muted); font-size: 1.1rem; }

/* ============================================
   INDUSTRY GRID
   ============================================ */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.industry-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all 0.2s;
  display: block;
  position: relative;
  overflow: hidden;
}
.industry-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s;
}
.industry-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.industry-card:hover::before { transform: scaleX(1); }
.industry-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft);
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-size: 1.4rem;
}
.industry-card h3 { margin-bottom: 8px; font-size: 1.15rem; }
.industry-card p { color: var(--text-muted); font-size: 0.93rem; }
.industry-card .count {
  display: inline-block; margin-top: 14px;
  font-size: 0.85rem; font-weight: 600; color: var(--accent);
}

/* ============================================
   TOOL GRID
   ============================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: all 0.2s;
  display: flex; flex-direction: column;
  position: relative;
}
.tool-card.live:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.tool-card.coming { opacity: 0.65; }
.tool-card .badge {
  position: absolute; top: 14px; right: 14px;
  font-size: 0.7rem; font-weight: 700;
  padding: 3px 8px; border-radius: 999px;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.badge-free { background: #ecfdf5; color: var(--success); }
.badge-pro { background: #fffbeb; color: var(--warning); }
.badge-soon { background: var(--bg-soft); color: var(--text-muted); }
.badge-ai { background: #f3e8ff; color: #7c3aed; }
.tool-card h3 { font-size: 1.1rem; margin-bottom: 6px; padding-right: 60px; }
.tool-card p { color: var(--text-muted); font-size: 0.93rem; flex: 1; }
.tool-card .open {
  margin-top: 16px;
  font-size: 0.9rem; font-weight: 600;
  color: var(--accent);
}
.tool-card .open::after {
  content: ' →';
  transition: transform 0.15s;
  display: inline-block;
}
.tool-card:hover .open::after { transform: translateX(3px); }

/* ============================================
   STEPS
   ============================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}
.step { text-align: center; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  margin-bottom: 18px;
  font-size: 1.1rem;
}
.step h3 { margin-bottom: 8px; }
.step p { color: var(--text-muted); }

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  background: var(--primary);
  color: white;
  border-radius: var(--radius-xl);
  padding: 64px 40px;
  text-align: center;
  margin: 0 auto;
}
.cta-banner h2 { color: white; margin-bottom: 14px; }
.cta-banner p { color: rgba(255,255,255,0.75); margin-bottom: 28px; font-size: 1.1rem; }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  background: var(--bg-soft);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 32px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.93rem;
  margin-top: 12px; max-width: 320px;
}
.footer-col h4 {
  font-size: 0.85rem; text-transform: uppercase;
  letter-spacing: 0.05em; margin-bottom: 14px;
  color: var(--text-muted);
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text); font-size: 0.93rem; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  font-size: 0.85rem; color: var(--text-muted);
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ============================================
   TOOL PAGE — calculator form layout
   ============================================ */
.tool-page-hero {
  padding: 56px 0 24px;
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
}
.breadcrumb {
  font-size: 0.9rem; color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a:hover { color: var(--accent); }
.tool-page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 12px; }
.tool-page-hero .lede { color: var(--text-muted); font-size: 1.15rem; max-width: 720px; }

.tool-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  padding: 40px 0 80px;
}
@media (max-width: 880px) {
  .tool-layout { grid-template-columns: 1fr; }
}

.tool-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.tool-form h2 { font-size: 1.3rem; margin-bottom: 20px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 0.9rem; font-weight: 600;
  margin-bottom: 6px; color: var(--text);
}
.form-group .hint {
  font-size: 0.83rem; color: var(--text-muted);
  margin-top: 4px; font-weight: 400;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.result-panel {
  background: var(--primary);
  color: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  position: sticky;
  top: 88px;
  align-self: start;
}
.result-panel h2 {
  color: white; font-size: 1.1rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 20px; opacity: 0.8;
}
.result-headline {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--accent);
}
.result-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 28px;
}
.result-breakdown {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
}
.result-row {
  display: flex; justify-content: space-between;
  padding: 10px 0;
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.result-row:last-child { border-bottom: none; }
.result-row .label { color: rgba(255,255,255,0.7); }
.result-row .val { font-weight: 600; }
.result-note {
  margin-top: 22px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.5;
}

.tool-info {
  background: var(--bg-soft);
  padding: 56px 0;
}
.tool-info h2 { margin-bottom: 20px; }
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.info-card {
  background: white;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.info-card h3 { font-size: 1rem; margin-bottom: 6px; }
.info-card p { font-size: 0.93rem; color: var(--text-muted); }

/* ============================================
   INDUSTRY PAGE HERO
   ============================================ */
.industry-hero {
  padding: 80px 0 56px;
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--bg) 100%);
}
.industry-hero h1 { margin-bottom: 14px; }
.industry-hero .lede {
  color: var(--text-muted); font-size: 1.2rem;
  max-width: 640px; margin-bottom: 24px;
}
.industry-meta {
  display: flex; gap: 24px; flex-wrap: wrap;
  font-size: 0.93rem;
  color: var(--text-muted);
}
.industry-meta strong { color: var(--text); font-weight: 700; }

/* ============================================
   UTILITY
   ============================================ */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }