/* ===========================================================
   BLACK FIRE — base styles
   Cinematic A24-style fire-theatre brand
   =========================================================== */

:root {
  /* Surfaces */
  --bf-black:      #07070A;     /* deepest black */
  --bf-pitch:      #0B0B0F;     /* page bg */
  --bf-coal:      #111116;     /* card / lifted surface */
  --bf-slate:     #1A1A20;     /* slate grey lifted */
  --bf-slate-2:   #25252D;     /* border / divider lifted */
  --bf-line:      rgba(255,255,255,0.08);
  --bf-line-strong: rgba(255,255,255,0.14);

  /* Ink */
  --bf-ink:       #F2F0EC;     /* primary on dark */
  --bf-ink-mute:  #A6A39C;     /* secondary */
  --bf-ink-dim:   #6F6C66;     /* tertiary */
  --bf-ink-faint: #45433F;     /* dividing labels */

  /* Ember — the only color */
  --bf-ember:       #FF5B14;   /* primary ember */
  --bf-ember-hot:   #FF7A2A;   /* hover */
  --bf-ember-glow:  #FFB066;   /* lighter ember */
  --bf-ember-deep:  #A8330B;   /* deep ember/coal-glow */
  --bf-ember-ash:   #5B1F08;   /* burnt edge */

  /* Type — defaults; overridden by tweaks */
  --bf-display: "Anton", "Oswald", "Bebas Neue", system-ui, sans-serif;
  --bf-body:    "Inter", "Helvetica Neue", system-ui, sans-serif;
  --bf-mono:    "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;

  /* Metrics */
  --bf-radius:    2px;
  --bf-radius-md: 4px;
  --bf-radius-lg: 10px;

  /* Motion */
  --bf-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--bf-pitch); scroll-behavior: smooth; }
body {
  background: var(--bf-pitch);
  color: var(--bf-ink);
  font-family: var(--bf-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
}

/* Selection */
::selection { background: var(--bf-ember); color: var(--bf-black); }

/* ─── typography utilities ─── */
.bf-display {
  font-family: var(--bf-display);
  font-weight: 400;
  letter-spacing: -0.005em;
  line-height: 0.98;
  text-transform: uppercase;
  text-wrap: balance;
}
.bf-eyebrow {
  font-family: var(--bf-body);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--bf-ink-dim);
}
.bf-label {
  font-family: var(--bf-body);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
}
.bf-mono {
  font-family: var(--bf-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

/* ─── canvas / particles ─── */
.bf-embers-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.9;
  mix-blend-mode: screen;
}

/* ─── layout ─── */
.bf-page {
  position: relative;
  z-index: 2;
  min-height: 100vh;
}
.bf-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 56px;
}
@media (max-width: 720px) {
  .bf-container { padding: 0 24px; }
}

.bf-section {
  position: relative;
  padding: 140px 0;
  border-top: 1px solid var(--bf-line);
}

/* ─── nav ─── */
.bf-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 22px 56px;
  transition: padding 250ms var(--bf-ease), background 250ms var(--bf-ease),
              backdrop-filter 250ms var(--bf-ease), border 250ms var(--bf-ease);
  border-bottom: 1px solid transparent;
}
.bf-nav.scrolled {
  padding: 14px 56px;
  background: rgba(7,7,10,0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--bf-line);
}
@media (max-width: 720px) {
  .bf-nav { padding: 18px 24px; }
  .bf-nav.scrolled { padding: 12px 24px; }
}
.bf-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.18em;
  font-family: var(--bf-display);
  font-size: 18px;
  text-transform: uppercase;
  font-weight: 400;
}
.bf-nav-logo span {
  position: relative;
}
.bf-nav-mark {
  width: 20px; height: 20px;
  position: relative;
}
.bf-nav-links {
  display: flex;
  gap: 36px;
}
.bf-nav-links a {
  color: var(--bf-ink-mute);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  transition: color 200ms var(--bf-ease);
}
.bf-nav-links a:hover { color: var(--bf-ember); }
@media (max-width: 1080px) {
  .bf-nav-links { display: none; }
}

/* ─── buttons ─── */
.bf-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--bf-body);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 18px 28px;
  border-radius: var(--bf-radius);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: all 250ms var(--bf-ease);
  position: relative;
  overflow: hidden;
}
.bf-btn-primary {
  background: var(--bf-ember);
  color: var(--bf-black);
  box-shadow: 0 0 0 0 rgba(255,91,20,0);
}
.bf-btn-primary:hover {
  background: var(--bf-ember-hot);
  box-shadow: 0 0 40px -8px rgba(255,91,20,0.55);
  transform: translateY(-1px);
}
.bf-btn-ghost {
  background: transparent;
  color: var(--bf-ink);
  border-color: var(--bf-line-strong);
}
.bf-btn-ghost:hover {
  border-color: var(--bf-ember);
  color: var(--bf-ember);
}
.bf-btn .bf-arrow {
  display: inline-block;
  transition: transform 250ms var(--bf-ease);
}
.bf-btn:hover .bf-arrow { transform: translateX(4px); }

/* ─── reveal-on-scroll ─── */
.bf-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 900ms var(--bf-ease), transform 900ms var(--bf-ease);
}
.bf-reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.bf-reveal-stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--bf-ease), transform 700ms var(--bf-ease);
}
.bf-reveal-stagger.in > * { opacity: 1; transform: translateY(0); }
.bf-reveal-stagger.in > *:nth-child(1) { transition-delay: 60ms; }
.bf-reveal-stagger.in > *:nth-child(2) { transition-delay: 140ms; }
.bf-reveal-stagger.in > *:nth-child(3) { transition-delay: 220ms; }
.bf-reveal-stagger.in > *:nth-child(4) { transition-delay: 300ms; }
.bf-reveal-stagger.in > *:nth-child(5) { transition-delay: 380ms; }
.bf-reveal-stagger.in > *:nth-child(6) { transition-delay: 460ms; }
.bf-reveal-stagger.in > *:nth-child(7) { transition-delay: 540ms; }

/* ─── ember glow text ─── */
.bf-ember-glow {
  color: var(--bf-ember);
  text-shadow:
    0 0 22px rgba(255,91,20,0.55),
    0 0 60px rgba(255,91,20,0.25);
}

/* ─── section header pattern ─── */
.bf-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 60px;
  margin-bottom: 96px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--bf-line);
}
@media (max-width: 768px) {
  .bf-section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 48px;
  }
}
.bf-section-head .bf-mono {
  color: var(--bf-ember);
  white-space: nowrap;
}
.bf-section-head h2 {
  line-height: 1.02;
}

/* utility */
.bf-divider {
  height: 1px;
  background: var(--bf-line);
  width: 100%;
}
.bf-rule-vert { width: 1px; background: var(--bf-line); align-self: stretch; }

/* tiny anim for the ember mark */
@keyframes bf-pulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50%      { opacity: 1;     transform: scale(1.06); }
}
.bf-pulse { animation: bf-pulse 3.2s var(--bf-ease) infinite; }

/* modal */
.bf-modal-veil {
  position: fixed; inset: 0;
  background: rgba(5,5,7,0.86);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: opacity 250ms var(--bf-ease);
  pointer-events: none;
}
.bf-modal-veil.open { opacity: 1; pointer-events: auto; }
.bf-modal-frame {
  position: relative;
  width: min(1100px, 90vw);
  aspect-ratio: 16 / 9;
  background: var(--bf-black);
  border: 1px solid var(--bf-line-strong);
  border-radius: var(--bf-radius-md);
  box-shadow: 0 30px 80px rgba(0,0,0,0.8), 0 0 80px -20px rgba(255,91,20,0.25);
  transform: scale(0.98);
  transition: transform 350ms var(--bf-ease);
  overflow: hidden;
}
@media (max-width: 720px) {
  .bf-modal-frame {
    aspect-ratio: 4 / 5;
    width: 92vw;
  }
}
.bf-modal-veil.open .bf-modal-frame { transform: scale(1); }
.bf-modal-close {
  position: absolute;
  top: -42px; right: 0;
  background: transparent; border: 0; color: var(--bf-ink-mute);
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  cursor: pointer; padding: 6px 0;
}
.bf-modal-close:hover { color: var(--bf-ember); }

/* form */
.bf-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--bf-line);
  border: 1px solid var(--bf-line);
}
@media (max-width: 720px) { .bf-form-grid { grid-template-columns: 1fr; } }
.bf-field {
  background: var(--bf-pitch);
  padding: 22px 24px 18px;
  display: flex; flex-direction: column; gap: 8px;
}
.bf-field--full { grid-column: 1 / -1; }
.bf-field label {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bf-ink-dim);
  font-weight: 600;
}
.bf-field input, .bf-field select, .bf-field textarea {
  background: transparent;
  border: 0;
  color: var(--bf-ink);
  font-family: var(--bf-body);
  font-size: 16px;
  padding: 6px 0;
  outline: none;
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--bf-ease);
  width: 100%;
}
.bf-field textarea { min-height: 92px; resize: vertical; }
.bf-field input:focus, .bf-field select:focus, .bf-field textarea:focus {
  border-bottom-color: var(--bf-ember);
}
.bf-field select option { background: var(--bf-pitch); color: var(--bf-ink); }

/* chips (event type, budget) */
.bf-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.bf-chip {
  background: transparent;
  border: 1px solid var(--bf-line-strong);
  color: var(--bf-ink-mute);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 200ms var(--bf-ease);
}
.bf-chip:hover { color: var(--bf-ink); border-color: var(--bf-ink-mute); }
.bf-chip[data-on="1"] {
  background: var(--bf-ember);
  border-color: var(--bf-ember);
  color: var(--bf-black);
}