/* AquilaFlow — landing v2 */
:root {
  --bg: #0a0a0c;
  --bg-2: #0f0f12;
  --surface: #15151a;
  --surface-2: #1b1b22;
  --surface-3: #232330;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);
  --border-bright: rgba(255, 255, 255, 0.22);
  --text: #f4f1ea;
  --text-mid: #b3b0a8;
  --text-muted: #7c7a72;
  --text-dim: #4d4c47;
  --accent: #ff6a2c;          /* warm amber — primary */
  --accent-2: #d9ff3a;         /* electric lime — AI */
  --accent-soft: rgba(255, 106, 44, 0.14);
  --accent-line: rgba(255, 106, 44, 0.45);
  --success: #6ddc8a;
  --warn: #ffc94d;
  --danger: #ff6b6b;

  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;

  --shadow-1: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 2px rgba(0,0,0,0.4);
  --shadow-2: 0 1px 0 rgba(255,255,255,0.06) inset, 0 20px 60px rgba(0,0,0,0.5);

  --font-display: "Instrument Serif", "Times New Roman", serif;
  --font-sans: "Inter Tight", "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --page-max: 1320px;
  --gutter: clamp(20px, 4vw, 56px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

::selection { background: var(--accent); color: #0a0a0c; }

/* ------- Layout helpers ------- */
.af-page { width: 100%; max-width: var(--page-max); margin: 0 auto; padding: 0 var(--gutter); }

/* Subtle global grain */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    radial-gradient(rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 3px 3px;
  pointer-events: none;
  z-index: 0;
  mix-blend-mode: overlay;
  opacity: 0.5;
}

/* Section divider — thin */
.af-rule { height: 1px; background: var(--border); width: 100%; }

/* Eyebrow */
.af-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.af-eyebrow::before {
  content: "";
  display: inline-block;
  width: 18px; height: 1px;
  background: var(--accent);
}

/* Display headlines */
.af-display {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: normal;
  letter-spacing: -0.02em;
  line-height: 1.04;
  color: var(--text);
  text-wrap: balance;
  padding-bottom: 0.08em; /* gives Turkish descenders (y, ğ, ş) room */
}
.af-display em {
  font-style: italic;
  color: var(--accent);
}

/* Big stat */
.af-stat-num {
  font-family: var(--font-display);
  font-size: clamp(64px, 9vw, 128px);
  line-height: 0.9;
  letter-spacing: -0.04em;
}

/* Buttons */
.af-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.af-btn:hover { transform: translateY(-1px); }
.af-btn-primary {
  background: var(--accent);
  color: #0a0a0c;
  border-color: var(--accent);
}
.af-btn-primary:hover { background: #ff7c45; }
.af-btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.af-btn-ghost:hover { border-color: var(--border-bright); background: rgba(255,255,255,0.03); }
.af-btn .arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}
.af-btn:hover .arrow { transform: translateX(3px); }

/* Tag chip */
.af-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mid);
  border: 1px solid var(--border-strong);
  background: rgba(255,255,255,0.02);
}
.af-chip.accent { border-color: var(--accent-line); color: var(--accent); background: var(--accent-soft); }
.af-chip .dot { width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block; }

/* Card */
.af-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.af-card:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
}

/* Section spacing */
.af-section {
  position: relative;
  padding-top: clamp(80px, 10vw, 140px);
  padding-bottom: clamp(80px, 10vw, 140px);
}

/* Section number */
.af-section-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* Animated reveal */
.af-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.af-reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.af-reveal[data-delay="1"] { transition-delay: 0.08s; }
.af-reveal[data-delay="2"] { transition-delay: 0.16s; }
.af-reveal[data-delay="3"] { transition-delay: 0.24s; }
.af-reveal[data-delay="4"] { transition-delay: 0.32s; }
.af-reveal[data-delay="5"] { transition-delay: 0.40s; }

/* utility grid lines for editorial moments */
.af-grid-bg {
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px);
  background-size: calc(100% / 12) 100%;
}

/* Marquee */
@keyframes af-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.af-marquee { display: flex; gap: 56px; animation: af-marquee 40s linear infinite; width: max-content; }
.af-marquee-wrap { overflow: hidden; mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent); }

/* Blink cursor */
@keyframes af-blink { 0%,49% {opacity:1} 50%,100% {opacity:0} }
.af-cursor { display:inline-block; width:0.55em; height:1em; background: currentColor; vertical-align: -0.12em; margin-left: 2px; animation: af-blink 1.1s steps(2) infinite; }

/* ============================================================
   Navigation — Hamburger & Mobile Menu
   ============================================================ */
.af-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--r-sm);
}
.af-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.af-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.af-hamburger.open span:nth-child(2) { opacity: 0; }
.af-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.af-mobile-nav {
  display: none;
  position: fixed;
  left: 0; right: 0; top: 56px; bottom: 0;
  background: rgba(10,10,12,0.97);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  z-index: 98;
  flex-direction: column;
  padding: 32px var(--gutter) 60px;
  gap: 0;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}
.af-mobile-nav.open { display: flex; }
.af-mobile-nav a {
  display: block;
  padding: 18px 0;
  font-size: 26px;
  font-family: var(--font-display);
  color: var(--text-mid);
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.02em;
  transition: color 0.2s;
}
.af-mobile-nav a:hover,
.af-mobile-nav a:focus { color: var(--text); }
.af-mobile-nav .af-mobile-cta {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.af-mobile-nav .af-mobile-cta a {
  font-family: var(--font-sans);
  font-size: 14px;
  border-bottom: none;
  padding: 0;
}
.af-nav-login { /* login link — hidden on mobile */ }

/* ============================================================
   Responsive — Tablet & Mobile (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {

  /* Nav */
  .af-nav-links { display: none !important; }
  .af-nav-login  { display: none !important; }
  .af-hamburger  { display: flex !important; }

  /* Hero */
  .af-hero-section { padding-top: 100px !important; }
  .af-hero-grid {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
    align-items: start !important;
  }

  /* FormTransformer two-pane → single column */
  .af-transformer-panes {
    grid-template-columns: 1fr !important;
    min-height: auto !important;
    gap: 10px !important;
  }
  .af-transformer-arrow { display: none !important; }

  /* All section 2-col heads → single col */
  .af-section-head {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
    margin-bottom: 28px !important;
  }

  /* How — step rows: 3-col → single col */
  .af-step-row {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
    padding: 24px 0 !important;
  }
  .af-step-num-col { display: none !important; }

  /* Compare: 2-col → single col */
  .af-compare-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* Sectors body: 2-col → single col */
  .af-sector-body {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  .af-sector-preview { min-height: 320px !important; }

  /* Agents: sidebar + console → stacked */
  .af-agent-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
  .af-agent-list { max-height: 220px !important; }

  /* Agent console stream: hide label col */
  .af-react-row {
    grid-template-columns: 28px 1fr !important;
    gap: 8px !important;
  }
  .af-react-label { display: none !important; }

  /* Stats: 4-col → 2-col */
  .af-stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  .af-stats-grid > div:nth-child(2n)  { border-right: none !important; }
  .af-stats-grid > div:nth-child(n+3) { border-top: 1px solid var(--border) !important; }

  /* FAQ item rows */
  .af-faq-row {
    grid-template-columns: 1fr 32px !important;
    gap: 12px !important;
  }
  .af-faq-num { display: none !important; }
  .af-faq-answer {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
    padding: 0 0 20px !important;
  }
  .af-faq-answer > span:first-child { display: none !important; }

  /* CTA: 2-col → single col */
  .af-cta-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
    align-items: start !important;
  }
  .af-cta-btns {
    flex-direction: column !important;
    align-items: stretch !important;
  }
  .af-cta-btns .af-btn { justify-content: center !important; }

  /* Footer: 4-col → 2-col */
  .af-footer-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 28px 20px !important;
  }

  /* Section spacing */
  .af-section {
    padding-top: clamp(56px, 8vw, 100px) !important;
    padding-bottom: clamp(56px, 8vw, 100px) !important;
  }

  /* Stat numbers */
  .af-stat-num { font-size: clamp(44px, 10vw, 80px) !important; }
}

/* ============================================================
   Responsive — Small phones (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  .af-stats-grid {
    grid-template-columns: 1fr !important;
  }
  .af-stats-grid > div { border-right: none !important; }
  .af-stats-grid > div + div { border-top: 1px solid var(--border) !important; }
  .af-stats-grid > div:nth-child(n+3) { border-top: 1px solid var(--border) !important; }

  .af-footer-grid { grid-template-columns: 1fr !important; }

  .af-transformer-panes { padding: 10px !important; }
}