/* Hartman Audio Forensics - production stylesheet */
/* Static rebuild of the Claude Design prototype. Tokens copied from the design system. */

/* ============ FONTS ============ */
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/inter.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/inter.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/inter.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/inter.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 800; font-display: swap; src: url("../fonts/inter.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Fira Code'; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/fira-code.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Fira Code'; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/fira-code.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Fira Code'; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/fira-code.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

/* ============ COLOR TOKENS ============ */
:root {
  --slate-950: #020617;
  --slate-900: #0f172a;
  --slate-850: #131c30;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;
  --white:     #ffffff;
  --black:     #000000;
  --cyan-300: #7dd3fc;
  --cyan-400: #38bdf8;
  --cyan-500: #0ea5e9;
  --cyan-600: #0284c7;
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
  --verified-400: #34d399;
  --verified-500: #10b981;
  --inconclusive-400: #fbbf24;
  --inconclusive-500: #f59e0b;
  --tampered-400: #f87171;
  --tampered-500: #ef4444;
  --surface-canvas:   var(--slate-950);
  --surface-raised:   var(--slate-900);
  --surface-overlay:  var(--slate-850);
  --surface-inset:    #010410;
  --surface-input:    rgba(15, 23, 42, 0.6);
  --text-primary:    var(--slate-50);
  --text-secondary:  var(--slate-400);
  --text-muted:      var(--slate-500);
  --text-disabled:   var(--slate-600);
  --text-on-accent:  var(--slate-950);
  --text-link:       var(--cyan-400);
  --border-subtle:  var(--slate-800);
  --border-default: var(--slate-700);
  --border-strong:  var(--slate-600);
  --border-focus:   var(--cyan-400);
  --accent:         var(--cyan-400);
  --accent-hover:   var(--cyan-300);
  --accent-pressed: var(--cyan-500);
  --accent-soft:    rgba(56, 189, 248, 0.12);
  --accent-ring:    rgba(56, 189, 248, 0.35);
  --accent-amber:      var(--amber-500);
  --accent-amber-soft: rgba(245, 158, 11, 0.14);
  --accent-amber-glow: 0 0 8px rgba(245, 158, 11, 0.6);
  --status-verified:      var(--verified-400);
  --status-verified-soft: rgba(52, 211, 153, 0.12);
  --status-caution:       var(--inconclusive-400);
  --status-caution-soft:  rgba(251, 191, 36, 0.12);
  --status-tampered:      var(--tampered-400);
  --status-tampered-soft: rgba(248, 113, 113, 0.12);
}

/* ============ TYPOGRAPHY TOKENS ============ */
:root {
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --weight-regular:  400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;
  --weight-extra:    800;
  --text-display:  clamp(48px, 7vw, 88px);
  --text-h1:       40px;
  --text-h2:       30px;
  --text-h3:       22px;
  --text-h4:       18px;
  --text-body-lg:  17px;
  --text-body:     15px;
  --text-sm:       13px;
  --text-xs:       12px;
  --text-mono:     13px;
  --text-label:    11px;
  --leading-tight:   1.05;
  --leading-snug:    1.2;
  --leading-normal:  1.5;
  --leading-relaxed: 1.65;
  --tracking-display: -0.03em;
  --tracking-heading: -0.02em;
  --tracking-normal:  0;
  --tracking-label:   0.14em;
  --tracking-mono:    0;
}

/* ============ SPACING, RADII & LAYOUT TOKENS ============ */
:root {
  --space-0:  0;
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;
  --radius-none: 0;
  --radius-sm:   2px;
  --radius-md:   2px;
  --radius-lg:   2px;
  --radius-xl:   2px;
  --radius-full: 9999px;
  --container-sm:   640px;
  --container-md:   768px;
  --container-lg:   1024px;
  --container-xl:   1200px;
  --container-prose: 68ch;
  --z-base:     0;
  --z-sticky:   100;
  --z-overlay:  200;
  --z-dialog:   300;
  --z-toast:    400;
}

/* ============ EFFECTS TOKENS ============ */
:root {
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.55);
  --shadow-dialog: 0 24px 64px rgba(0, 0, 0, 0.65);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.03), inset 0 0 0 1px rgba(2, 6, 23, 0.6);
  --ring-focus: 0 0 0 3px var(--accent-ring);
  --glow-accent: 0 0 24px rgba(56, 189, 248, 0.25);
  --border-hairline: 1px solid var(--border-subtle);
  --border-line:     1px solid var(--border-default);
  --grid-line: rgba(255, 255, 255, 0.03);
  --grid-size: 32px;
  --texture-grid: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  --glow-blob: rgba(56, 189, 248, 0.05);
  --veil-top: linear-gradient(180deg, rgba(2,6,23,0) 0%, rgba(2,6,23,0.85) 100%);
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast:   120ms;
  --dur-base:   200ms;
  --dur-slow:   360ms;
  --transition-base: all var(--dur-base) var(--ease-out);
}

/* ============ KEYFRAMES ============ */
@keyframes haf-spec-scroll { 0% { stroke-dashoffset: 0; } 100% { stroke-dashoffset: 50; } }
@keyframes haf-scan { 0% { background-position: 0 0; } 100% { background-position: 0 1000px; } }
@keyframes haf-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ============ BASE ============ */
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--surface-canvas); color: var(--text-secondary); font-family: var(--font-sans); -webkit-font-smoothing: antialiased; }
::selection { background: var(--accent); color: var(--slate-950); }
section[id] { scroll-margin-top: 96px; }
[hidden] { display: none !important; }
svg { display: block; }

/* ============ RESPONSIVE GRID UTILITIES ============ */
.haf-grid-lg-2 { display: grid; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .haf-grid-lg-2 { grid-template-columns: 1fr 1fr; } }
.haf-grid-md-2 { display: grid; grid-template-columns: 1fr; }
@media (min-width: 768px) { .haf-grid-md-2 { grid-template-columns: 1fr 1fr; } }
.haf-grid-md-3 { display: grid; grid-template-columns: 1fr; }
@media (min-width: 768px) { .haf-grid-md-3 { grid-template-columns: repeat(3, 1fr); } }
.haf-grid-md-4 { display: grid; grid-template-columns: 1fr; }
@media (min-width: 768px) { .haf-grid-md-4 { grid-template-columns: repeat(4, 1fr); } }
.haf-grid-services { display: grid; grid-template-columns: 1fr; }
@media (min-width: 768px) { .haf-grid-services { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .haf-grid-services { grid-template-columns: repeat(3, 1fr); } }

/* ============ ACCESSIBILITY ============ */
.skip-link { position: absolute; left: 0; top: 0; z-index: 200; padding: 12px 20px; background: var(--accent); color: var(--slate-950); font-family: var(--font-mono); font-size: 12px; font-weight: var(--weight-bold); text-transform: uppercase; letter-spacing: 0.18em; text-decoration: none; transform: translateY(-120%); }
.skip-link:focus { transform: none; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ============ LAYOUT ============ */
.container { max-width: var(--container-xl); margin: 0 auto; padding: 0 32px; }
.eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin: 0 0 16px; }
.section-title { font-size: var(--text-h2); font-weight: var(--weight-semibold); color: var(--text-primary); letter-spacing: -0.01em; margin: 0; }

/* ============ BUTTONS ============ */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 22px; font-size: 12px; font-family: var(--font-mono); font-weight: var(--weight-bold); text-transform: uppercase; letter-spacing: 0.18em; line-height: 1; border-radius: var(--radius-none); cursor: pointer; white-space: nowrap; text-decoration: none; }
.btn-sm { padding: 8px 16px; font-size: 11px; }
.btn-lg { padding: 15px 26px; font-size: 12px; }
.btn-block { display: flex; width: 100%; }
.btn-primary { background: var(--white); color: var(--slate-950); border: 1px solid var(--white); }
.btn-primary:hover { background: var(--accent); color: var(--white); border-color: var(--accent); }
.btn-accent { background: var(--accent); color: var(--slate-950); border: 1px solid var(--accent); }
.btn-accent:hover { background: var(--white); color: var(--slate-950); border-color: var(--white); }
.btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--border-default); }
.btn-secondary:hover { color: var(--accent); border-color: var(--accent); }

/* ============ HEADER ============ */
.site-header { position: sticky; top: 0; z-index: 50; width: 100%; background: rgba(2, 6, 23, 0.80); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-subtle); }
.header-inner { max-width: var(--container-xl); margin: 0 auto; height: 80px; padding: 0 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 16px; text-decoration: none; }
.brand-name { color: #fff; font-weight: 600; letter-spacing: -0.01em; font-size: 18px; white-space: nowrap; }
.primary-nav { display: flex; gap: 32px; }
.primary-nav a { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-secondary); text-decoration: none; }
.primary-nav a:hover { color: var(--accent); }
.nav-toggle { display: none; }
@media (max-width: 1023px) { .header-cta { display: none; } }
@media (max-width: 767px) {
  .header-inner { padding: 0 16px; }
  .brand-name { font-size: 15px; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; flex-direction: column; gap: 5px; width: 44px; height: 44px; background: transparent; border: 1px solid var(--border-default); cursor: pointer; padding: 0; }
  .nav-toggle .bar { display: block; width: 18px; height: 2px; background: var(--text-primary); }
  .primary-nav { display: none; position: absolute; top: 80px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--surface-overlay); border-bottom: 1px solid var(--border-subtle); }
  .nav-open .primary-nav { display: flex; }
  .primary-nav a { padding: 16px 24px; border-top: 1px solid var(--border-subtle); }
}

/* ============ HERO ============ */
.hero { position: relative; min-height: 85vh; display: flex; align-items: center; border-bottom: 1px solid var(--border-subtle); overflow: hidden; background-color: var(--surface-canvas); background-image: var(--texture-grid); background-size: var(--grid-size) var(--grid-size); }
.hero-full { min-height: 100vh; }
.hero-glow { position: absolute; top: 20%; right: 22%; width: 384px; height: 384px; background: var(--glow-blob); border-radius: var(--radius-full); filter: blur(64px); pointer-events: none; }
.hero-inner { position: relative; z-index: 10; max-width: var(--container-xl); margin: 0 auto; width: 100%; padding: 64px 32px; gap: 64px; align-items: center; }
.hero .eyebrow { margin-bottom: 24px; }
.hero h1 { font-size: clamp(40px, 5vw, 60px); font-weight: var(--weight-bold); color: var(--text-primary); letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 24px; }
.hero h1 span { color: var(--text-muted); }
.hero-lede { font-size: var(--text-body-lg); color: var(--text-secondary); line-height: var(--leading-relaxed); max-width: 36rem; margin: 0 0 40px; }
.hero-ctas { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.trust-signals { display: flex; flex-wrap: wrap; gap: 12px 24px; font-family: var(--font-mono); font-size: 12px; color: var(--accent-amber); list-style: none; margin: 0; padding: 0; }
.trust-signals li { display: flex; align-items: center; gap: 8px; }
.trust-signals .dot { width: 6px; height: 6px; border-radius: var(--radius-full); background: var(--accent-amber); }

/* ============ INSTRUMENT PANEL ============ */
.panel-wrap { position: relative; z-index: 10; }
.panel { border: 1px solid var(--border-subtle); background: color-mix(in srgb, var(--surface-raised) 80%, transparent); padding: 4px; }
.panel-frame { border: 1px solid var(--border-subtle); background: var(--surface-canvas); }
.panel-head { display: flex; justify-content: space-between; align-items: center; padding: 8px 16px; border-bottom: 1px solid var(--border-subtle); background: var(--surface-raised); }
.panel-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; color: var(--accent); }
.pips { display: flex; gap: 8px; }
.pip { width: 8px; height: 8px; border-radius: var(--radius-full); background: var(--slate-700); }
.pip-live { background: var(--accent); }
.spectrogram { position: relative; height: 192px; overflow: hidden; background: var(--surface-raised); border-bottom: 1px solid var(--border-subtle); }
.spec-scan { position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0), rgba(56,189,248,0.10)); background-size: 100% 4px; }
.spectrogram svg { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.9; mix-blend-mode: screen; }
.spectrogram line { stroke: var(--accent); stroke-width: 10; }
.spectrogram line:nth-child(1) { opacity: 0.10; }
.spectrogram line:nth-child(2) { opacity: 0.15; }
.spectrogram line:nth-child(3) { opacity: 0.25; }
.spectrogram line:nth-child(4) { opacity: 0.35; }
.spectrogram line:nth-child(5) { opacity: 0.45; }
.spectrogram line:nth-child(6) { opacity: 0.60; }
.spectrogram line:nth-child(7) { opacity: 0.70; }
.spectrogram line:nth-child(8) { opacity: 0.80; }
.spectrogram line:nth-child(9) { opacity: 0.90; }
.spectrogram line:nth-child(10) { opacity: 1; }
.spec-overlay { position: absolute; inset: 0; pointer-events: none; }
.crosshair-h { position: absolute; top: 50%; left: 0; width: 100%; height: 1px; background: color-mix(in srgb, var(--accent) 30%, transparent); }
.crosshair-v { position: absolute; top: 0; left: 50%; width: 1px; height: 100%; background: color-mix(in srgb, var(--accent) 30%, transparent); }
.playhead { position: absolute; top: 0; left: 65%; width: 1px; height: 100%; background: color-mix(in srgb, var(--accent-amber) 70%, transparent); box-shadow: var(--accent-amber-glow); z-index: 10; }
.readouts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 16px; font-family: var(--font-mono); font-size: 12px; margin: 0; }
.readout { min-width: 0; }
.readout dt { color: var(--slate-400); margin-bottom: 4px; font-size: 11px; }
.readout dd { color: var(--text-primary); display: flex; align-items: center; gap: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin: 0; }
.readout dd.is-status { color: var(--accent-amber); }
.chip { padding: 1px 5px; font-size: 11px; background: var(--accent-soft); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }

/* ============ SERVICES ============ */
.services { padding: 96px 0; border-bottom: 1px solid var(--border-subtle); background: var(--surface-raised); }
.services-head { margin-bottom: 64px; }
.services-grid { gap: 24px; }
.service-card { position: relative; background: var(--surface-canvas); border: 1px solid var(--border-subtle); border-radius: var(--radius-none); padding: 32px; }
.service-card:hover { border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.service-num { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--accent); margin-bottom: 16px; }
.service-card h3 { font-size: var(--text-h3); font-weight: var(--weight-semibold); color: var(--text-primary); margin: 0 0 12px; }
.service-card p { font-size: var(--text-sm); line-height: var(--leading-relaxed); color: var(--text-secondary); margin: 0; }

/* ============ METHODOLOGY ============ */
.methodology { padding: 96px 0; border-bottom: 1px solid var(--border-subtle); background-color: var(--surface-canvas); background-image: var(--texture-grid); background-size: var(--grid-size) var(--grid-size); }
.methodology-head { text-align: center; margin-bottom: 64px; }
.steps { position: relative; gap: 16px; }
.steps-line { position: absolute; top: 32px; left: 40px; right: 40px; height: 1px; background: var(--border-subtle); z-index: 0; }
.step { position: relative; z-index: 10; display: flex; flex-direction: column; align-items: center; text-align: center; }
.step-num { width: 64px; height: 64px; background: var(--surface-canvas); border: 1px solid var(--border-default); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: 20px; color: var(--text-primary); margin-bottom: 24px; }
.step h3 { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin: 0 0 12px; }
.step p { font-size: var(--text-sm); color: var(--text-secondary); margin: 0; }

/* ============ ABOUT ============ */
.about { padding: 96px 0; border-bottom: 1px solid var(--border-subtle); background: var(--surface-raised); }
.about-inner { gap: 64px; align-items: center; }
.about h2 { margin-bottom: 24px; }
.about-copy { color: var(--text-secondary); line-height: var(--leading-relaxed); margin: 0 0 24px; }
.about-copy.last { margin-bottom: 32px; }
.badges { display: flex; flex-direction: column; gap: 12px; }
.badge-row { display: flex; align-items: flex-start; gap: 16px; padding: 16px; border: 1px solid var(--border-subtle); background: var(--surface-canvas); }
.badge-row .tick { color: var(--accent); font-family: var(--font-mono); margin-top: 2px; }
.badge-t { font-weight: var(--weight-bold); color: var(--text-primary); font-size: var(--text-sm); }
.badge-s { color: var(--slate-400); font-size: var(--text-xs); font-family: var(--font-mono); margin-top: 4px; }
.standard-card { position: relative; background: var(--surface-canvas); border: 1px solid var(--border-subtle); border-radius: var(--radius-none); padding: 48px; }
.bracket { position: absolute; width: 16px; height: 16px; }
.bracket.tl { top: 0; left: 0; border-top: 1px solid var(--accent); border-left: 1px solid var(--accent); }
.bracket.tr { top: 0; right: 0; border-top: 1px solid var(--accent); border-right: 1px solid var(--accent); }
.bracket.bl { bottom: 0; left: 0; border-bottom: 1px solid var(--accent); border-left: 1px solid var(--accent); }
.bracket.br { bottom: 0; right: 0; border-bottom: 1px solid var(--accent); border-right: 1px solid var(--accent); }
.statute { font-family: var(--font-mono); font-size: 24px; color: var(--accent-amber); margin-bottom: 24px; }
.standard-copy { font-size: var(--text-body-lg); color: var(--text-secondary); line-height: var(--leading-relaxed); margin: 0 0 32px; }
.standard-meta { font-family: var(--font-mono); font-size: var(--text-xs); }
.standard-meta .k { color: var(--text-primary); font-weight: var(--weight-bold); letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 4px; }
.standard-meta .v { color: var(--slate-400); }

/* ============ FAQ ============ */
.faq { padding: 96px 0; border-bottom: 1px solid var(--border-subtle); background: var(--surface-canvas); }
.faq-inner { max-width: 768px; margin: 0 auto; padding: 0 32px; }
.faq-head { text-align: center; margin-bottom: 64px; }
.faq-list { display: flex; flex-direction: column; gap: 16px; }
.faq-item { border: 1px solid var(--border-subtle); background: var(--surface-raised); padding: 16px; }
.faq-item summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: none; }
.faq-item h3 { font-weight: var(--weight-semibold); color: var(--text-primary); font-size: var(--text-body); font-family: var(--font-sans); text-align: left; margin: 0; }
.faq-item .marker { color: var(--accent); font-family: var(--font-mono); flex: none; }
.faq-item[open] summary .marker { transform: rotate(45deg); }
.faq-a { margin-top: 16px; font-size: var(--text-sm); color: var(--text-secondary); line-height: var(--leading-relaxed); padding-left: 8px; border-left: 2px solid var(--accent); }

/* ============ CONTACT ============ */
.contact { padding: 96px 0; background-color: var(--surface-canvas); background-image: var(--texture-grid); background-size: var(--grid-size) var(--grid-size); }
.contact-inner { gap: 64px; }
.contact-card { position: relative; background: var(--surface-canvas); border: 1px solid var(--border-subtle); border-radius: var(--radius-none); padding: 32px; }
.contact-card .eyebrow { margin-bottom: 8px; }
.contact-card h2 { font-size: var(--text-h3); font-weight: var(--weight-semibold); color: var(--text-primary); letter-spacing: normal; margin: 0 0 32px; }
.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-row { gap: 24px; }
.contact-form label { display: block; font-family: var(--font-mono); font-size: 10px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.18em; margin-bottom: 8px; }
.field { width: 100%; background: var(--surface-raised); border: 1px solid var(--border-default); color: var(--text-primary); padding: 12px 16px; font-family: var(--font-sans); font-size: var(--text-body); box-sizing: border-box; }
.field:focus { border-color: var(--accent); }
select.field { appearance: none; }
textarea.field { resize: none; }
.hidden { display: none; }
.form-success { padding: 40px 0; text-align: center; }
.form-success .status-line { font-family: var(--font-mono); color: var(--accent-amber); font-size: var(--text-h4); }
.form-success p { color: var(--text-secondary); margin: 12px 0 0; }
.form-error { font-size: var(--text-sm); color: var(--status-tampered); line-height: var(--leading-relaxed); margin: 0; }
.form-error a { color: var(--accent); }
.contact-aside { display: flex; flex-direction: column; justify-content: center; gap: 48px; }
.aside-h { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); font-weight: var(--weight-bold); margin: 0 0 16px; }
.contact-rows { display: flex; flex-direction: column; gap: 16px; }
.contact-row { display: flex; align-items: center; gap: 16px; }
.contact-icon { width: 40px; height: 40px; border: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: center; color: var(--text-secondary); font-family: var(--font-mono); font-size: var(--text-xs); flex: none; }
.contact-tel { color: var(--text-primary); font-family: var(--font-mono); font-size: var(--text-h4); text-decoration: none; white-space: nowrap; }
.contact-eml { color: var(--text-primary); font-family: var(--font-mono); text-decoration: none; }
.contact-tel:hover, .contact-eml:hover { color: var(--accent); }
@media (max-width: 480px) { .contact-eml { font-size: 13px; } }
.confidentiality { font-size: var(--text-sm); color: var(--text-secondary); line-height: var(--leading-relaxed); margin: 0; }

/* ============ FOOTER ============ */
.site-footer { background: var(--surface-canvas); border-top: 1px solid var(--border-subtle); padding: 48px 0; }
.footer-grid { gap: 32px; padding-bottom: 32px; margin-bottom: 32px; border-bottom: 1px solid var(--surface-raised); }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; text-decoration: none; }
.footer-brand span { color: #fff; font-weight: 600; letter-spacing: -0.01em; }
.footer-about { font-size: var(--text-xs); color: var(--slate-400); line-height: var(--leading-relaxed); margin: 0; }
.footer-h { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-primary); font-weight: var(--weight-bold); margin: 0 0 16px; }
.footer-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.footer-list li { font-size: var(--text-xs); color: var(--slate-400); }
.copyright { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--slate-400); }

/* ============ MOTION (gated) ============ */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .primary-nav a { transition: color var(--dur-base) var(--ease-out); }
  .btn { transition: var(--transition-base); }
  .service-card { transition: border-color var(--dur-base) var(--ease-out); }
  .faq-item .marker { transition: transform var(--dur-base) var(--ease-out); }
  .field { transition: border-color var(--dur-base) var(--ease-out); }
  .contact-tel, .contact-eml { transition: color var(--dur-base) var(--ease-out); }
  .pip-live { animation: haf-pulse 2s ease-in-out infinite; }
  .spec-scan { animation: haf-scan 10s linear infinite; }
  .spectrogram line { animation: haf-spec-scroll linear infinite; }
  .spectrogram line:nth-child(1) { animation-duration: 9s; }
  .spectrogram line:nth-child(2) { animation-duration: 8s; }
  .spectrogram line:nth-child(3) { animation-duration: 7s; }
  .spectrogram line:nth-child(4) { animation-duration: 6s; }
  .spectrogram line:nth-child(5) { animation-duration: 5.5s; }
  .spectrogram line:nth-child(6) { animation-duration: 4.8s; }
  .spectrogram line:nth-child(7) { animation-duration: 4.2s; }
  .spectrogram line:nth-child(8) { animation-duration: 4s; }
  .spectrogram line:nth-child(9) { animation-duration: 3.5s; }
  .spectrogram line:nth-child(10) { animation-duration: 3s; }
}