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

:root {
  --dark:    #0a0a0f;
  --mid:     #12121a;
  --accent:  #e8a020;
  --accent2: #c46010;
  --text:    #f0ede8;
  --muted:   #9a9690;

  /* Typography tokens */
  --font-body:    'Inter Tight', 'Segoe UI', system-ui, sans-serif;
  --font-hero:    'Inter Tight', 'Segoe UI', system-ui, sans-serif;

  /* Hero text shadow — crisp separation, not glow */
  --hero-shadow:  0 1px 0 rgba(0,0,0,0.50), 0 3px 18px rgba(0,0,0,0.75);
  --sub-shadow:   0 1px 8px rgba(0,0,0,0.65);
}

html { scroll-behavior: smooth; }

body {
  background: var(--dark);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ─── STICKY CANVAS SECTION ─────────────────────────── */
#scroll-driver {
  position: relative;
  height: 500vh; /* scroll distance */
}

#canvas-sticky {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

#three-canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
}

/* ── Canvas overlay — scene-wide dark gradient for left-aligned text readability
   Layer 1: Top vignette  — protects nav
   Layer 2: Bottom fade   — grounds the scene
   Layer 3: Left-side gradient — primary readability band for left-aligned text
   Layer 4: Edge vignette — subtle corner darkening */
#canvas-sticky::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom,
      rgba(6,6,10,0.78) 0%,
      rgba(6,6,10,0.10) 18%,
      rgba(6,6,10,0.04) 50%,
      rgba(6,6,10,0.45) 80%,
      rgba(6,6,10,0.72) 100%
    ),
    linear-gradient(to right,
      rgba(6,6,10,0.78) 0%,
      rgba(6,6,10,0.55) 28%,
      rgba(6,6,10,0.20) 52%,
      rgba(6,6,10,0.00) 72%
    );
  pointer-events: none;
  z-index: 1;
}

/* Mobile overlay — slightly less bottom darkness to preserve floor detail */
@media (max-width: 767px) {
  #canvas-sticky::after {
    background:
      linear-gradient(to bottom,
        rgba(6,6,10,0.72) 0%,
        rgba(6,6,10,0.10) 20%,
        rgba(6,6,10,0.04) 50%,
        rgba(6,6,10,0.32) 80%,
        rgba(6,6,10,0.55) 100%
      ),
      linear-gradient(to right,
        rgba(6,6,10,0.72) 0%,
        rgba(6,6,10,0.48) 30%,
        rgba(6,6,10,0.15) 58%,
        rgba(6,6,10,0.00) 75%
      );
  }
}

/* ─── TOP-LEFT LABEL ─────────────────────────────────── */
#hero-label {
  position: absolute;
  top: 84px;
  left: 40px;
  z-index: 11;
  font-family: var(--font-hero);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(232,160,32,0.55);
  border-radius: 3px;           /* industrial: square corners, not pill */
  padding: 5px 14px;
  pointer-events: none;
  text-shadow: none;
}
@media (max-width: 640px) {
  #hero-label { left: 20px; top: 72px; }
}

/* ─── STAGE PANELS ───────────────────────────────────── */
#hero-stages {
  position: absolute;
  top: 50%;
  left: 6%;
  transform: translateY(-50%);
  width: min(600px, 54vw);
  text-align: left;
  z-index: 11;
  pointer-events: none;
}

.stage-panel {
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  transform: translateY(calc(-50% + 20px));
  opacity: 0;
  /* Premium easing: ease-out-quart — fast in, settles with authority */
  transition: opacity 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  padding: 0;
}

/* Active state — JS overrides top/transform on mobile via applyTextPos() */
.stage-panel.active {
  opacity: 1;
  transform: translateY(-50%);
  pointer-events: all;
}

/* Mobile: left-aligned, vertically balanced */
@media (max-width: 767px) {
  #hero-stages {
    top: 52% !important;
    left: 20px !important;
    transform: translateY(-50%) !important;
    width: min(340px, calc(100vw - 40px));
  }
  .stage-panel {
    top: 0 !important;
    transform: translateY(20px) !important;
    padding: 0;
  }
  .stage-panel.active {
    transform: translateY(0) !important;
  }

  /* Headline — ~25% smaller, tight but breathable */
  .stage-panel h1 {
    font-size: clamp(1.30rem, 6.5vw, 1.75rem);
    line-height: 1.16;
    margin-bottom: 10px;
    max-width: 100%;
  }

  /* Subtext — slightly more visible, better line-height */
  .stage-panel p {
    font-size: 0.88rem;
    color: rgba(224, 219, 210, 0.94);
    line-height: 1.68;
    max-width: 100%;
    margin: 0 0 20px;
  }

  /* CTA button — less bulky */
  .btn-primary {
    font-size: 0.82rem;
    padding: 11px 24px;
  }

  /* Mobile line-break helpers */
  .mob-br { display: inline; }
  .desk-br { display: none; }
}

/* ── Hero headline ─────────────────────────────────────
   Inter Tight 700 — sharp, controlled, premium.
   Tight tracking, controlled line-height. */
.stage-panel h1 {
  font-family: var(--font-hero);
  font-size: clamp(1.75rem, 3.4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.030em;
  color: #ffffff;
  text-shadow: var(--hero-shadow);
  margin-bottom: 14px;
  max-width: 540px;
}

/* Single accent word — deep premium amber, not UI-orange */
.stage-panel h1 em {
  font-style: normal;
  color: #b8720f;
  -webkit-text-fill-color: #b8720f;
}

/* Desktop line-break helpers — visible by default */
.mob-br { display: none; }
.desk-br { display: inline; }

/* ── Subtext ───────────────────────────────────────────
   Readable secondary — brighter than before, clearly
   subordinate but not washed out. */
.stage-panel p {
  font-family: var(--font-body);
  font-size: clamp(0.90rem, 1.3vw, 0.98rem);
  font-weight: 400;
  color: rgba(224, 219, 210, 0.88);
  max-width: 420px;
  margin: 0 0 28px;
  line-height: 1.62;
  letter-spacing: 0.006em;
  text-shadow: var(--sub-shadow);
}

.stage-panel .cta-group {
  display: flex;
  gap: 14px;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0f;             /* dark text on amber — stronger contrast */
  font-family: var(--font-hero);
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 14px 34px;
  border-radius: 4px;         /* industrial: minimal radius */
  text-decoration: none;
  transition: background 0.2s, transform 0.18s cubic-bezier(0.25,0.46,0.45,0.94);
  box-shadow: 0 2px 0 rgba(0,0,0,0.4),
              0 8px 24px rgba(232,160,32,0.28);
}
.btn-primary:hover {
  background: #f0ad28;
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  padding: 13px 28px;
  border-radius: 6px;
  border: 1.5px solid rgba(255,255,255,0.35);
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
}
.btn-ghost:hover { border-color: var(--accent); background: rgba(232,160,32,0.08); }

/* scroll indicator */
#scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 11;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  pointer-events: none;
  animation: fadeHint 1.4s ease infinite alternate;
}
#scroll-hint .arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid rgba(255,255,255,0.4);
  border-bottom: 2px solid rgba(255,255,255,0.4);
  transform: rotate(45deg);
}
@keyframes fadeHint { from { opacity: 0.4; } to { opacity: 1; } }

/* ─── PROGRESS BAR ───────────────────────────────────── */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  z-index: 100;
  transition: width 0.05s linear;
}

/* ─── NAV ────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 90;
  padding: 12px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(to bottom,
    rgba(6,6,10,0.52) 0%,
    rgba(6,6,10,0.18) 70%,
    transparent 100%
  );
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background 0.3s, backdrop-filter 0.3s;
}
nav.scrolled {
  background: rgba(8,8,12,0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}
.nav-logo-img {
  height: 38px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}

.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 24px;
  border-radius: 6px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.88; }

/* ─── BENEFITS STRIP ─────────────────────────────────── */
#benefits {
  background: var(--mid);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 60px 40px;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  max-width: 1100px;
  margin: 0 auto;
}

.benefit-item {
  text-align: center;
}

.benefit-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
}

.benefit-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.benefit-item p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
}

/* ─── USE CASES ──────────────────────────────────────── */
#use-cases {
  padding: 100px 40px;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.18;
  margin-bottom: 48px;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.case-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.25s, background 0.25s;
}
.case-card:hover {
  border-color: rgba(232,160,32,0.35);
  background: rgba(232,160,32,0.05);
}

.case-card .icon { font-size: 2rem; margin-bottom: 16px; }
.case-card h3 { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.case-card p { font-size: 0.88rem; color: var(--muted); line-height: 1.6; }

/* ─── PROCESS ────────────────────────────────────────── */
#process {
  background: var(--mid);
  padding: 100px 40px;
}

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

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  margin-top: 48px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}

.step {
  text-align: center;
  padding: 0 20px;
  position: relative;
}

.step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-size: 1.1rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 0 24px rgba(232,160,32,0.3);
}

.step h3 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.step p { font-size: 0.82rem; color: var(--muted); line-height: 1.55; }

/* ─── PRICING TEASER ─────────────────────────────────── */
#pricing {
  padding: 100px 40px;
  text-align: center;
}

.price-box {
  display: inline-block;
  background: linear-gradient(135deg, rgba(232,160,32,0.12), rgba(196,96,16,0.08));
  border: 1px solid rgba(232,160,32,0.25);
  border-radius: 16px;
  padding: 48px 64px;
  margin-top: 40px;
}

.price-from {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.price-number {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}

.price-unit {
  font-size: 1rem;
  color: var(--muted);
  margin-top: 6px;
  margin-bottom: 28px;
}

.price-note {
  font-size: 0.85rem;
  color: var(--muted);
  max-width: 340px;
  line-height: 1.6;
}

/* ─── CONTACT FORM ───────────────────────────────────── */
#contact {
  background: var(--mid);
  padding: 100px 40px;
}

.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact-inner .section-title { margin-bottom: 12px; }
.contact-inner > p {
  color: var(--muted);
  margin-bottom: 40px;
  font-size: 1rem;
  line-height: 1.6;
}

form {
  display: grid;
  gap: 16px;
  text-align: left;
}

form input,
form textarea,
form select {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  padding: 14px 18px;
  outline: none;
  transition: border-color 0.2s;
  font-family: inherit;
}
form input::placeholder,
form textarea::placeholder { color: var(--muted); }
form input:focus,
form textarea:focus,
form select:focus { border-color: var(--accent); }

form select option { background: var(--mid); }

form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

form textarea { resize: vertical; min-height: 130px; }

form button[type="submit"] {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  padding: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  box-shadow: 0 6px 28px rgba(232,160,32,0.3);
}
form button[type="submit"]:hover { opacity: 0.9; transform: translateY(-2px); }

.form-note {
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 4px;
}

/* ─── FOOTER ─────────────────────────────────────────── */
footer {
  background: #060609;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 40px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

footer .logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}
.footer-logo-img {
  height: 39px;
  width: auto;
  display: block;
  opacity: 0.85;
  filter: brightness(0) invert(1);
}

footer p {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ─── LOADING OVERLAY ────────────────────────────────── */
#loading-overlay {
  position: absolute; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  background: #0a0a0f; transition: opacity 0.6s;
}
.lo-inner { text-align: center; }
.lo-bar-wrap {
  width: 220px; height: 3px; background: rgba(255,255,255,0.12);
  border-radius: 99px; overflow: hidden; margin: 0 auto 12px;
}
.lo-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #e8a020, #c46010);
  transition: width 0.15s;
}
.lo-label { font-size: 0.78rem; letter-spacing: 0.12em; color: #9a9690; }

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 640px) {
  nav { padding: 8px 16px; }
  .nav-logo-img { height: 28px; }
  .nav-cta { font-size: 0.78rem; padding: 8px 16px; }
  #benefits, #use-cases, #process, #pricing, #contact { padding: 60px 20px; }
  footer { padding: 32px 20px; flex-direction: column; text-align: center; }
  form .row { grid-template-columns: 1fr; }
  .price-box { padding: 36px 28px; }
  .process-steps::before { display: none; }
}