/* Spark Pillar — Shared stylesheet for dating, friends, professional pages */
/* Each page sets --pillar-accent, --pillar-accent-rgb, --pillar-tint on :root */

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

:root {
  --spark-cream: #e8ddd0;
  --spark-cream-dim: rgba(232,221,208,0.85);
  --spark-muted: #b8c8cf;
  --spark-teal: #109eb7;
  --spark-rose: #c8788c;
  --spark-sage: #7aad8a;
  --spark-blue: #8aafcc;
  --spark-gold: #d4af37;
}

body {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--spark-cream);
  min-height: 100vh;
  overflow-x: hidden;
  background: #1a2a2e;
}

/* ── Glass Backdrop ── */
.glass-backdrop {
  position: fixed; inset: 0; z-index: 0;
  background-color: #1a2a2e;
  background-image: url('../images/spark-glass.png');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  box-shadow: inset 0 0 120px rgba(0,0,0,0.4), inset 0 0 280px rgba(0,0,0,0.18);
}
.glass-backdrop::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: var(--pillar-tint, rgba(80,30,40,0.28));
  background: linear-gradient(0deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.2) 40%, rgba(0,0,0,0.15) 100%);
}
.glass-backdrop::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  opacity: 0.03; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

/* ── Top Navigation ── */
.spark-top-nav {
  position: sticky; top: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: rgba(14,28,32,0.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(16,158,183,0.08);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
.spark-nav-left { display: flex; align-items: center; gap: 1.5rem; }
.spark-back-btn {
  background: rgba(16,158,183,0.08); color: rgba(232,221,208,0.85);
  border: none; padding: 0.5rem 1.1rem; border-radius: 50px;
  cursor: pointer; font-weight: 600; font-size: 0.8rem;
  font-family: 'Space Grotesk', sans-serif;
  text-decoration: none; display: inline-block; transition: all 0.3s;
}
.spark-back-btn:hover { background: rgba(16,158,183,0.15); color: #e8ddd0; }
.spark-nav-right { display: flex; gap: 0.75rem; align-items: center; }
.spark-nav-icon-btn {
  background: rgba(16,158,183,0.08); color: rgba(232,221,208,0.65);
  border: none; width: 38px; height: 38px; border-radius: 50%;
  cursor: pointer; transition: all 0.3s;
  display: flex; align-items: center; justify-content: center;
}
.spark-nav-icon-btn:hover { background: rgba(16,158,183,0.15); color: #e8ddd0; }

/* ── Layout ── */
.container {
  max-width: 760px; margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  position: relative; z-index: 2;
}

/* ── Hero ── */
.pillar-hero { text-align: center; padding: 2.5rem 0 3rem; }
.pillar-hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3.2rem; font-weight: 400; font-style: italic;
  color: var(--spark-cream); margin-bottom: 0.5rem;
  text-shadow: 0 2px 16px rgba(0,0,0,0.5);
}
.accent-line {
  width: 45px; height: 2px;
  background: var(--pillar-accent, var(--spark-rose));
  margin: 1rem auto; border-radius: 2px;
  box-shadow: 0 0 14px rgba(var(--pillar-accent-rgb, 200,120,140), 0.3);
}
.hero-statement {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.55rem; font-style: italic;
  color: var(--spark-cream); line-height: 1.65;
  max-width: 580px; margin: 0 auto;
  text-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

/* ── Section Dividers & Labels ── */
.section-divider {
  width: 50px; height: 1px; margin: 2.5rem auto;
  background: linear-gradient(90deg, transparent, rgba(var(--pillar-accent-rgb, 200,120,140), 0.3), transparent);
}
.section-label {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  font-style: italic;
  letter-spacing: 0.04em;
  color: var(--pillar-accent, var(--spark-rose));
  font-weight: 600;
  margin-bottom: 1.8rem;
  text-align: center;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}

/* ── How It Works — Steps Grid ── */
.steps-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.4rem; margin-bottom: 0.5rem;
}
.step-card {
  background: rgba(14,28,32,0.20);
  border: 1px solid rgba(var(--pillar-accent-rgb, 200,120,140), 0.30);
  border-radius: 16px; padding: 2rem;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s;
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}
.step-card:hover {
  background: rgba(14,28,32,0.30);
  border-color: rgba(var(--pillar-accent-rgb, 200,120,140), 0.40);
  box-shadow: 0 8px 36px rgba(0,0,0,0.25);
  transform: translateY(-2px);
}
.step-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.4rem; font-weight: 700;
  color: var(--pillar-accent, var(--spark-rose));
  opacity: 0.7; line-height: 1; margin-bottom: 0.6rem;
}
.step-card h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem; font-weight: 600; font-style: italic;
  color: var(--spark-cream); margin-bottom: 0.6rem;
  text-shadow: 0 1px 8px rgba(0,0,0,0.5);
}
.step-card p {
  color: var(--spark-muted);
  font-size: 1rem; line-height: 1.75;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* ── Comparison Blocks ── */
.comparison-block {
  margin-bottom: 1.25rem;
  background: rgba(14,28,32,0.20);
  border: 1px solid rgba(var(--pillar-accent-rgb, 200,120,140), 0.28);
  border-radius: 16px; padding: 1.4rem 1.6rem;
  display: grid; grid-template-columns: 1fr auto 1fr;
  gap: 1rem; align-items: center;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 3px 18px rgba(0,0,0,0.15);
}
.comp-old {
  color: var(--spark-muted); font-size: 0.95rem;
  text-decoration: line-through; opacity: 0.8;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.comp-arrow {
  color: var(--pillar-accent, var(--spark-rose));
  font-size: 1.4rem; font-weight: 700;
}
.comp-new {
  color: var(--spark-cream); font-size: 0.95rem; font-weight: 600;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* ── Feature Spotlight ── */
.spotlight-block {
  background: rgba(14,28,32,0.20);
  border: 1px solid rgba(var(--pillar-accent-rgb, 200,120,140), 0.28);
  border-radius: 20px; padding: 2.2rem;
  margin-bottom: 0.5rem;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}
.spotlight-block h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem; font-style: italic;
  color: var(--spark-cream); margin-bottom: 1rem;
  text-align: center;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.spotlight-block p {
  color: var(--spark-muted); font-size: 1rem;
  line-height: 1.75; margin-bottom: 1rem;
  text-shadow: 0 1px 3px rgba(0,0,0,0.25);
}

/* ── Chapter List (Dating) ── */
.chapter-list { display: flex; flex-direction: column; gap: 0.85rem; }
.chapter-item {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 0.95rem; background: rgba(0,0,0,0.14); border-radius: 12px;
}
.chapter-num {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(var(--pillar-accent-rgb, 200,120,140), 0.12);
  border: 1px solid rgba(var(--pillar-accent-rgb, 200,120,140), 0.2);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Cormorant Garamond', serif; font-weight: 700;
  color: var(--pillar-accent, var(--spark-rose));
  flex-shrink: 0; font-size: 0.95rem;
}
.chapter-item strong {
  color: var(--spark-cream); font-size: 1rem;
  display: block; margin-bottom: 0.2rem;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.chapter-item span {
  color: var(--spark-muted); font-size: 0.9rem; line-height: 1.55;
  text-shadow: 0 1px 3px rgba(0,0,0,0.25);
}

/* ── Circle Visual (Friends) ── */
.circle-visual {
  display: flex; justify-content: center; align-items: center;
  gap: 0; margin: 1.5rem 0;
}
.circle-seat {
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(var(--pillar-accent-rgb, 122,173,138), 0.1);
  border: 2px solid rgba(var(--pillar-accent-rgb, 122,173,138), 0.2);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Cormorant Garamond', serif; font-weight: 700;
  color: var(--pillar-accent, var(--spark-sage)); font-size: 0.9rem;
}
.circle-connector {
  width: 24px; height: 2px;
  background: rgba(var(--pillar-accent-rgb, 122,173,138), 0.15);
}

/* ── Mentor Flow (Professional) ── */
.mentor-flow {
  display: flex; flex-direction: column;
  gap: 0.85rem; margin: 1rem 0;
}
.mentor-flow-item {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.95rem 1rem; background: rgba(0,0,0,0.14); border-radius: 12px;
}
.mentor-flow-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(var(--pillar-accent-rgb, 138,175,204), 0.1);
  border: 1px solid rgba(var(--pillar-accent-rgb, 138,175,204), 0.2);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Cormorant Garamond', serif; font-weight: 700;
  color: var(--pillar-accent, var(--spark-blue));
  flex-shrink: 0; font-size: 0.9rem;
}
.mentor-flow-item strong {
  color: var(--spark-cream); font-size: 1rem;
  display: block; margin-bottom: 0.15rem;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.mentor-flow-item span {
  color: var(--spark-muted); font-size: 0.9rem; line-height: 1.55;
  text-shadow: 0 1px 3px rgba(0,0,0,0.25);
}

/* ── Safety Stats ── */
.safety-strip {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0.85rem; margin-bottom: 0.5rem;
}
.safety-stat {
  text-align: center; padding: 1.2rem;
  background: rgba(14,28,32,0.20);
  border: 1px solid rgba(16,158,183,0.28);
  border-radius: 14px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 3px 18px rgba(0,0,0,0.15);
}
.safety-stat .number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.2rem; font-weight: 700;
  color: var(--spark-teal); display: block; line-height: 1.2;
  text-shadow: 0 1px 6px rgba(0,0,0,0.3);
}
.safety-stat .label {
  color: var(--spark-muted); font-size: 0.82rem;
  text-transform: uppercase; letter-spacing: 0.08em; font-weight: 500;
}

/* ── Connection Continuum (Dating) ── */
.continuum {
  display: flex; align-items: center; gap: 0;
  margin: 1.5rem 0; overflow-x: auto; padding: 0.5rem 0;
}
.continuum-stage { text-align: center; flex: 1; min-width: 0; }
.continuum-dot {
  width: 34px; height: 34px; border-radius: 50%;
  border: 2px solid rgba(var(--pillar-accent-rgb, 200,120,140), 0.35);
  background: rgba(14,28,32,0.20);
  margin: 0 auto 0.5rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.85rem; font-weight: 700;
  color: var(--pillar-accent, var(--spark-rose));
}
.continuum-line {
  flex: 0 0 auto; width: 20px; height: 2px;
  background: rgba(var(--pillar-accent-rgb, 200,120,140), 0.2);
  margin-top: -18px;
}
.continuum-stage .stage-label {
  font-size: 0.78rem; color: var(--spark-cream-dim);
  line-height: 1.35; font-weight: 500;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* ── Philosophy Block ── */
.philosophy-block {
  background: rgba(14,28,32,0.20);
  border: 1px solid rgba(var(--pillar-accent-rgb, 200,120,140), 0.28);
  border-radius: 20px; padding: 2.2rem;
  text-align: center; margin-bottom: 0.5rem;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}
.philosophy-block h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem; font-style: italic;
  color: var(--spark-cream); margin-bottom: 0.75rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.philosophy-block p {
  color: var(--spark-muted); font-size: 1rem;
  line-height: 1.75; max-width: 560px; margin: 0 auto;
  text-shadow: 0 1px 3px rgba(0,0,0,0.25);
}

/* ── CTA ── */
.cta-section { text-align: center; margin-top: 2rem; }
.btn-primary {
  background: linear-gradient(135deg, rgba(16,158,183,0.2), rgba(16,158,183,0.1));
  border: 1px solid rgba(16,158,183,0.3);
  color: var(--spark-teal); padding: 0.95rem 2.4rem;
  border-radius: 50px; font-family: 'Space Grotesk', sans-serif;
  font-size: 0.92rem; font-weight: 600; cursor: pointer; transition: all 0.3s;
}
.btn-primary:hover {
  box-shadow: 0 0 25px rgba(16,158,183,0.12);
  transform: translateY(-1px);
}
.btn-secondary {
  background: rgba(232,221,208,0.04);
  border: 1px solid rgba(232,221,208,0.1);
  color: var(--spark-cream-dim); padding: 0.95rem 2.4rem;
  border-radius: 50px; font-family: 'Space Grotesk', sans-serif;
  font-size: 0.92rem; font-weight: 600; cursor: pointer; transition: all 0.3s;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .pillar-hero h1 { font-size: 2.2rem; }
  .hero-statement { font-size: 1.2rem; }
  .section-label { font-size: 1.3rem; }
  .container { padding: 1.5rem 1rem 3rem; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-card { padding: 1.6rem; }
  .step-card h3 { font-size: 1.2rem; }
  .comparison-block { grid-template-columns: 1fr; gap: 0.4rem; text-align: center; }
  .comp-arrow { transform: rotate(90deg); }
  .safety-strip { grid-template-columns: 1fr; }
  .spark-top-nav { padding: 0.6rem 1rem; }
  .spark-back-btn { font-size: 0.72rem; padding: 0.45rem 0.9rem; }
  .spark-nav-icon-btn { width: 34px; height: 34px; }
}