/* ============================================================
   ColdSpark — Landing Page Styles
   Dark theme: warm charcoal + bold orange accent
   ============================================================ */

:root {
  --bg:          #0d0b08;
  --bg-alt:      #141210;
  --bg-card:     #1a1715;
  --fg:          #e8e0d4;
  --fg-muted:    #7a7570;
  --accent:      #ff6b35;
  --accent-dim:  rgba(255, 107, 53, 0.12);
  --accent-hot:  #ff6b35;
  --border:      rgba(255, 230, 210, 0.07);
  --font-head:   'Space Grotesk', system-ui, sans-serif;
  --font-body:   'DM Sans', system-ui, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 100px;
  overflow: hidden;
  text-align: center;
}
.hero-inner {
  max-width: 860px;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(255, 107, 53, 0.28);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 36px;
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin-bottom: 28px;
  color: var(--fg);
}
.hero h1 .accent { color: var(--accent); }
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--fg-muted);
  max-width: 640px;
  margin: 0 auto 52px;
  line-height: 1.75;
}
.hero-cta-wrap { margin-bottom: 64px; }
.cta-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 16px 40px;
  border-radius: 8px;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 24px rgba(255, 107, 53, 0.35);
}
.cta-primary:hover {
  background: #ff4f18;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.45);
}
.cta-sub { margin-top: 14px; font-size: 0.88rem; color: var(--fg-muted); }
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat-val {
  display: block;
  font-family: var(--font-head);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent);
}
.hero-stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 2px;
}
.hero-stat-sep { font-size: 1.2rem; color: var(--border); line-height: 1; }
.hero-glow {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 700px;
  background: radial-gradient(ellipse at 50% 40%, rgba(255, 107, 53, 0.07) 0%, transparent 65%);
  pointer-events: none;
  z-index: 1;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how {
  padding: 100px 24px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.how-inner { max-width: 960px; margin: 0 auto; }
.how h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
}
.how-sub {
  text-align: center;
  color: var(--fg-muted);
  margin-bottom: 64px;
  font-size: 1.05rem;
}
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.step {
  padding: 32px 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-card);
  transition: border-color 0.3s;
}
.step:hover { border-color: rgba(255, 107, 53, 0.22); }
.step-num {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.step h3 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.step p { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.65; }

/* ============================================================
   FEATURES
   ============================================================ */
.features { padding: 100px 24px; }
.features-inner { max-width: 960px; margin: 0 auto; }
.features-inner h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  padding: 40px 28px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-alt);
  transition: transform 0.2s, border-color 0.3s;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 53, 0.2);
}
.feature-icon { font-size: 1.8rem; margin-bottom: 18px; }
.feature-card h3 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--fg);
}
.feature-card p { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.7; }

/* ============================================================
   PRICING
   ============================================================ */
.pricing {
  padding: 110px 24px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.pricing-inner { max-width: 720px; margin: 0 auto; }
.pricing-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}
.pricing h2 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.pricing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  margin-bottom: 52px;
  line-height: 1.7;
}
.pricing-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-card);
  padding: 52px 48px;
  margin-bottom: 48px;
  display: inline-block;
  width: 100%;
  max-width: 520px;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0,0,0,0.4);
}
.pricing-price { margin-bottom: 32px; }
.price-amount {
  font-family: var(--font-head);
  font-size: 4rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1;
}
.price-period {
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: var(--fg-muted);
  font-weight: 400;
}
.pricing-divider {
  width: 60px;
  height: 1px;
  background: var(--border);
  margin: 0 auto 32px;
}
.pricing-includes {
  list-style: none;
  text-align: left;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
  margin-bottom: 40px;
}
.pricing-include {
  font-size: 0.92rem;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 10px;
}
.check-icon { color: var(--accent); font-weight: 600; font-size: 0.85rem; flex-shrink: 0; }
.pricing-cta-wrap { text-align: center; }
.pricing-cta-wrap .cta-primary { font-size: 1rem; }
.pricing-cta-wrap .cta-sub { margin-top: 12px; }

.pricing-vs {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  max-width: 520px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.pricing-vs-item { flex: 1; padding: 24px 28px; text-align: left; }
.vs-name {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--fg-muted);
  margin-bottom: 6px;
}
.vs-highlight { color: var(--accent); }
.vs-detail { font-size: 0.88rem; color: var(--fg-muted); line-height: 1.5; }
.pricing-vs-divider { width: 1px; background: var(--border); align-self: stretch; }

/* ============================================================
   SOCIAL PROOF
   ============================================================ */
.social-proof { padding: 100px 24px; }
.social-proof-inner { max-width: 960px; margin: 0 auto; text-align: center; }
.social-proof-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 24px;
}
.social-proof h2 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 56px;
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}
.testimonial-card {
  padding: 40px 32px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-alt);
  text-align: left;
  transition: border-color 0.3s;
}
.testimonial-card:hover { border-color: rgba(255, 107, 53, 0.18); }
.testimonial-quote {
  font-size: 1rem;
  color: var(--fg-muted);
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 28px;
  min-height: 80px;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar-placeholder {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--fg-muted);
  flex-shrink: 0;
}
.testimonial-name {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg);
}
.testimonial-role { font-size: 0.82rem; color: var(--fg-muted); margin-top: 2px; }
.social-proof-note { font-size: 0.95rem; color: var(--fg-muted); }
.inline-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.15s;
}
.inline-link:hover { opacity: 0.8; }

/* ========== CASE STUDIES ========== */
.case-studies {
  padding: 100px 24px;
  background: var(--bg);
}

.case-studies-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.cs-header {
  text-align: center;
  margin-bottom: 64px;
}

.cs-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent-hot);
  border: 1px solid rgba(255, 107, 53, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.cs-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.cs-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
}

.cs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.cs-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: border-color 0.3s, transform 0.2s;
}

.cs-card:hover {
  border-color: rgba(255, 107, 53, 0.25);
  transform: translateY(-2px);
}

.cs-metric {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 20px;
}

.cs-number {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-hot), #ff9a5c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.cs-metric-label {
  font-size: 0.88rem;
  color: var(--fg-muted);
  font-family: var(--font-display);
  font-weight: 500;
}

.cs-detail {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.cs-company {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--fg);
}

.cs-industry {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.cs-secondary {
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin-top: 4px;
}

.cs-quote {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
}

.cs-attribution {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 16px;
  font-style: normal;
}

.cs-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--fg);
}

.cs-title {
  font-size: 0.78rem;
  color: var(--fg-muted);
}

/* ========== CLOSING ========== */
.closing {
  padding: 120px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.closing-inner { max-width: 700px; margin: 0 auto; position: relative; z-index: 2; }
.closing h2 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--fg);
}
.closing-text {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 48px;
}

/* ============================================================
   CLOSING CTA
   ============================================================ */
.closing-tag {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}
.closing-cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.closing-cta-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 16px 48px;
  border-radius: 8px;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 24px rgba(255, 107, 53, 0.3);
}
.closing-cta-primary:hover {
  background: #ff4f18;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.4);
}
.closing-trust {
  font-size: 0.82rem;
  color: var(--fg-muted);
}
.closing-glow {
  position: absolute;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse at 50% 50%, rgba(255, 107, 53, 0.08) 0%, transparent 65%);
  pointer-events: none;
  z-index: 1;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand { font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; }
.footer-copy { font-size: 0.82rem; color: var(--fg-muted); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 640px) {
  .hero { padding: 80px 20px 60px; min-height: 85vh; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 16px; }
  .hero-stat-val { font-size: 1.4rem; }
  .hero-stat-sep { display: none; }
  .cta-primary { display: block; text-align: center; }
  .steps { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .numbers-inner { grid-template-columns: 1fr; }
  .cs-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 400px) {
  .cta-primary { padding: 14px 28px; font-size: 0.95rem; }
  .price-amount { font-size: 3.2rem; }
}