/* ============================================
   FUNNEL PAGE — ISOLATED LAYOUT SYSTEM
   
   This file controls the homepage/funnel page ONLY.
   It does not inherit from or affect the app UI.
   
   Layout system:
   - Vertical rhythm: 6rem (96px) between sections on desktop, 4rem (64px) on mobile
   - Content width: max-w-[38rem] (~60ch) for prose, max-w-[56rem] for wider elements
   - Type scale: clamp()-based fluid sizing
   - All spacing derives from a 0.5rem base unit
   ============================================ */

/* ── Page wrapper ── */
.funnel {
  --funnel-gap: 3rem;
  --funnel-gap-lg: 7rem;
  --funnel-prose: 40rem;    /* ~60-65 characters */
  --funnel-wide: 60rem;     /* dashboard mockup, pricing grid */
  --funnel-px: 1.25rem;     /* horizontal page padding */
  --funnel-bg: #000000;

  background: var(--funnel-bg);
  color: #e5e7eb;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  position: relative;
}

/* Subtle noise grain overlay — adds depth to flat dark backgrounds */
.funnel::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* Ensure all content sits above the noise layer */
.funnel > * {
  position: relative;
  z-index: 1;
}

/* ── Section rhythm ── */
.funnel-section {
  padding-top: var(--funnel-gap);
  padding-bottom: var(--funnel-gap);
  padding-left: var(--funnel-px);
  padding-right: var(--funnel-px);
  position: relative;
}

/* Glowing separator line between sections */
.funnel-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(96, 165, 250, 0.1) 30%,
    rgba(96, 165, 250, 0.18) 50%,
    rgba(96, 165, 250, 0.1) 70%,
    transparent 100%
  );
}

/* Soft spotlight bloom that washes onto the section heading */
.funnel-section::after {
  content: '';
  position: absolute;
  top: -1px;
  left: 15%;
  right: 15%;
  height: 260px;
  background: radial-gradient(
    ellipse 45% 100% at 50% 0%,
    rgba(96, 165, 250, 0.16) 0%,
    rgba(96, 165, 250, 0.08) 35%,
    rgba(96, 165, 250, 0.03) 65%,
    transparent 100%
  );
  pointer-events: none;
}

/* Tablet */
@media (min-width: 640px) {
  .funnel {
    --funnel-px: 2rem;
    --funnel-gap: 4rem;
  }
}

/* Desktop */
@media (min-width: 768px) {
  .funnel {
    --funnel-px: 3rem;
  }
  .funnel-section {
    padding-top: var(--funnel-gap-lg);
    padding-bottom: var(--funnel-gap-lg);
  }
}

/* Large desktop */
@media (min-width: 1024px) {
  .funnel {
    --funnel-px: 4rem;
  }
}

@media (min-width: 1280px) {
  .funnel {
    --funnel-px: 6rem;
  }
}

/* ── Content containers ── */
.funnel-prose {
  max-width: var(--funnel-prose);
  margin-left: auto;
  margin-right: auto;
}

.funnel-wide {
  max-width: var(--funnel-wide);
  margin-left: auto;
  margin-right: auto;
}

/* ── Typography ── */
.funnel-heading-1 {
  font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  font-size: clamp(2rem, 5vw + 0.5rem, 4.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #ffffff;
}

.funnel-heading-2 {
  font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  font-size: clamp(1.5rem, 3vw + 0.5rem, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.funnel-heading-3 {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: clamp(0.9375rem, 1vw + 0.25rem, 1.125rem);
  font-weight: 600;
  line-height: 1.4;
  color: #ffffff;
}

.funnel-body {
  font-size: clamp(1rem, 0.5vw + 0.875rem, 1.125rem);
  line-height: 1.7;
  color: #9ca3af;
}

.funnel-body-sm {
  font-size: clamp(0.8125rem, 0.25vw + 0.75rem, 0.9375rem);
  line-height: 1.65;
  color: #9ca3af;
}

.funnel-kicker {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(96, 165, 250, 0.6);
}

/* ── Buttons ── */
.funnel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: all 150ms ease;
  cursor: pointer;
  text-decoration: none;
}

.funnel-btn-primary {
  background: #2563eb;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}
.funnel-btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.6s ease;
}
.funnel-btn-primary:hover {
  background: #3b82f6;
  transform: translateY(-1px);
  box-shadow:
    0 4px 20px rgba(37, 99, 235, 0.4),
    0 0 30px rgba(96, 165, 250, 0.3);
}
.funnel-btn-primary:hover::before {
  left: 100%;
}
.funnel-btn-primary:active {
  transform: translateY(0) scale(0.99);
}

.funnel-btn-ghost {
  color: #9ca3af;
  background: transparent;
}
.funnel-btn-ghost:hover {
  color: #ffffff;
}

.funnel-btn-subtle {
  color: #d1d5db;
  background: rgba(255, 255, 255, 0.04);
}
.funnel-btn-subtle:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* ── Section backgrounds ──
   Each section gets a unique backdrop spotlight.
   Colors are brand-adjacent, very low opacity (3-7%).
   Positioned off-center for organic depth. 
   Alternating base tones: #000 → #040810 for gentle edges. */

/* Warm tension — problem framing */
.funnel-bg-problem {
  background-color: #040a14;
  background-image:
    radial-gradient(ellipse 100% 100% at 50% 50%, rgba(30, 58, 138, 0.08) 0%, transparent 100%),
    radial-gradient(ellipse 70% 60% at 30% 50%, rgba(251, 146, 60, 0.04) 0%, transparent 100%),
    radial-gradient(ellipse 50% 40% at 80% 70%, rgba(168, 85, 247, 0.03) 0%, transparent 100%);
}

.funnel-problem-copy {
  text-align: center;
}

@media (min-width: 1024px) {
  .funnel-problem-copy {
    text-align: left;
  }
}

/* Cool confidence — solution/proof */
.funnel-bg-solution {
  background-color: #000000;
  background-image:
    radial-gradient(ellipse 80% 50% at 60% 30%, rgba(59, 130, 246, 0.05) 0%, transparent 100%),
    radial-gradient(ellipse 40% 50% at 10% 80%, rgba(34, 211, 238, 0.03) 0%, transparent 100%);
}

/* Violet progression — process/steps */
.funnel-bg-process {
  background-color: #040a14;
  background-image:
    radial-gradient(ellipse 100% 100% at 50% 50%, rgba(30, 58, 138, 0.08) 0%, transparent 100%),
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(124, 58, 237, 0.045) 0%, transparent 100%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(59, 130, 246, 0.03) 0%, transparent 100%);
}

/* Blue trust — pricing/commitment */
.funnel-bg-trust {
  background-color: #000000;
  background-image:
    radial-gradient(ellipse 70% 50% at 50% 50%, rgba(30, 58, 138, 0.06) 0%, transparent 100%),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(34, 211, 238, 0.025) 0%, transparent 100%);
}

/* Energized — final push */
.funnel-bg-cta {
  background-color: #040a14;
  background-image:
    radial-gradient(ellipse 100% 100% at 50% 50%, rgba(30, 58, 138, 0.08) 0%, transparent 100%),
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(59, 130, 246, 0.055) 0%, transparent 100%),
    radial-gradient(ellipse 50% 40% at 40% 80%, rgba(16, 185, 129, 0.03) 0%, transparent 100%);
}

/* Keep generic versions as fallback */
.funnel-bg-subtle {
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(15, 23, 42, 0.18) 40%,
    rgba(15, 23, 42, 0.18) 60%,
    transparent 100%
  );
}

.funnel-bg-glow {
  background: radial-gradient(
    ellipse 80% 50% at 50% 40%,
    rgba(30, 58, 138, 0.07) 0%,
    transparent 100%
  );
}

/* ── Feature cards — Cruip gradient-border style ── */
.funnel-feature-card {
  background:
    linear-gradient(#0d0d1a, #0d0d1a) padding-box,
    linear-gradient(45deg, rgba(75,85,99,0.25), rgba(148,163,184,0.5), rgba(75,85,99,0.25)) border-box;
  transition: transform 350ms ease, box-shadow 350ms ease;
}
.funnel-feature-card:hover {
  transform: translateY(-4px);
  background:
    linear-gradient(#0d0d1a, #0d0d1a) padding-box,
    linear-gradient(45deg, rgba(96,165,250,0.4), rgba(103,232,249,0.5), rgba(96,165,250,0.4)) border-box;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(96,165,250,0.06);
}

/* ── Cards / surface ── */
.funnel-card {
  background: rgba(17, 24, 39, 0.35);
  border: 1px solid rgba(75, 85, 99, 0.15);
  border-radius: 0.75rem;
}

/* ── Badge ── */
.funnel-badge {
  position: absolute;
  top: -0.625rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.2rem 0.75rem;
  font-size: 0.625rem;
  font-weight: 700;
  font-family: 'Inter', system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.4;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  background: #2563eb;
  background-image: none;
  border-radius: 9999px;
  white-space: nowrap;
  filter: none;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

.funnel-card-featured {
  background: rgba(17, 24, 39, 0.5);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 0.75rem;
  box-shadow: 0 0 60px rgba(59, 130, 246, 0.06);
}

/* ── Dividers ── */
.funnel-divider {
  border-top: 1px solid rgba(75, 85, 99, 0.15);
}

/* ── Utility ── */
.funnel-mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.funnel-gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #67e8f9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Hero-specific ── */
.funnel-hero {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 6.5rem var(--funnel-px) 3.5rem;
}

.funnel-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 8rem;
  background: linear-gradient(to bottom, transparent, #030608);
  z-index: 10;
  pointer-events: none;
}

@media (min-width: 768px) {
  .funnel-hero {
    min-height: 100vh;
    min-height: 100dvh;
    padding: 6rem var(--funnel-px) 4rem;
  }
  .funnel-hero::after {
    height: 12rem;
  }
}

/* ── Footer-specific ── */
.funnel-footer {
  border-top: 1px solid rgba(75, 85, 99, 0.15);
  padding: 3rem var(--funnel-px) 2rem;
}

@media (min-width: 768px) {
  .funnel-footer {
    padding: 3.5rem var(--funnel-px) 2.5rem;
  }
}

.funnel-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 1.5rem;
}

@media (min-width: 640px) {
  .funnel-footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

@media (min-width: 1024px) {
  .funnel-footer-grid {
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 3rem;
  }
}

.funnel-footer a {
  transition: color 150ms ease;
}
.funnel-footer a:hover {
  color: #ffffff;
}

/* ── Pricing card hover ── */
.funnel-card,
.funnel-card-featured {
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

.funnel-card:hover {
  transform: translateY(-2px);
  border-color: rgba(75, 85, 99, 0.3);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
}

.funnel-card-featured:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 60px rgba(59, 130, 246, 0.12);
}

/* ── Desktop refinements ── */
@media (min-width: 1024px) {
  .funnel-heading-1 {
    letter-spacing: -0.035em;
  }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .funnel * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}