/* ============================================================
   Z NATION TRANSPORT — GLOBAL CSS
   Design system tokens + resets + utilities + shared components.
   All page-specific styles live in their own CSS files.
   ============================================================ */

/* ── Google Fonts import (via WP enqueue, not @import here) ── */

/* ── CSS Custom Properties — Design System Tokens ── */
:root {
  /* Brand Navy */
  --navy-950: #03101A;
  --navy-900: #06141D;
  --navy-850: #082230;
  --navy-800: #041E2B;
  --navy-700: #0B3448;
  --navy-600: #134256;
  --navy-500: #1E5570;
  --navy-400: #2E6C8C;

  /* Steel / Slate */
  --steel-50:  #F5F7FA;
  --steel-100: #E7ECF1;
  --steel-200: #CDD6DF;
  --steel-300: #A7B2BD;
  --steel-400: #7C8893;
  --steel-500: #5A6670;
  --steel-600: #3E4953;
  --steel-700: #2A333B;
  --steel-800: #1A2128;
  --steel-900: #10161B;

  /* Signal Orange — accent only */
  --orange-300: #FFB088;
  --orange-400: #FF7A3D;
  --orange-500: #FF5A1F;
  --orange-600: #E64A14;
  --orange-700: #BF3A0E;

  /* Copper — premium warmth, sparingly */
  --copper-400: #D98A4A;
  --copper-500: #C8702C;

  /* Semantic status */
  --green-500: #12B76A;
  --amber-500: #F2A03D;
  --red-500:   #D6504B;
  --cyan-500:  #4E93B5;

  /* Semantic aliases — dark (default) */
  --bg-page:         var(--navy-900);
  --bg-page-deep:    var(--navy-950);
  --bg-inset:        #050F17;
  --surface-1:       #0A2230;
  --surface-2:       #0E2A3B;
  --surface-3:       #123146;
  --surface-card:    var(--surface-2);
  --surface-overlay: rgba(3, 16, 26, 0.72);

  --border-subtle:  rgba(167, 178, 189, 0.10);
  --border-default: rgba(167, 178, 189, 0.16);
  --border-strong:  rgba(167, 178, 189, 0.28);
  --border-accent:  var(--orange-500);

  --text-primary:   var(--steel-50);
  --text-secondary: var(--steel-300);
  --text-muted:     var(--steel-400);
  --text-inverse:   var(--navy-900);
  --text-accent:    var(--orange-400);
  --text-on-accent: #1A0A00;

  --accent:        var(--orange-500);
  --accent-hover:  var(--orange-400);
  --accent-press:  var(--orange-600);
  --accent-soft:   rgba(255, 90, 31, 0.12);
  --accent-ring:   rgba(255, 90, 31, 0.40);

  --state-hover:        rgba(255, 255, 255, 0.05);
  --state-active:       rgba(255, 255, 255, 0.09);
  --state-selected:     rgba(255, 90, 31, 0.14);
  --state-disabled-bg:  rgba(167, 178, 189, 0.08);
  --state-disabled-fg:  rgba(167, 178, 189, 0.35);

  --success:    var(--green-500);
  --success-bg: rgba(18, 183, 106, 0.14);
  --success-fg: #5BD99B;
  --warning:    var(--amber-500);
  --warning-bg: rgba(242, 160, 61, 0.14);
  --warning-fg: #F6B86B;
  --error:      var(--red-500);
  --error-bg:   rgba(214, 80, 75, 0.14);
  --error-fg:   #E88784;
  --info:       var(--cyan-500);
  --info-bg:    rgba(78, 147, 181, 0.14);
  --info-fg:    #7FB8D2;

  --focus-ring: 0 0 0 3px var(--accent-ring);

  /* Typography */
  --font-display: 'Archivo', 'Arial Narrow', system-ui, sans-serif;
  --font-sans:    'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     700;
  --fw-extra:    800;
  --fw-black:    900;

  --lh-tight:   1.04;
  --lh-snug:    1.16;
  --lh-base:    1.5;
  --lh-relaxed: 1.65;

  --ls-tighter: -0.03em;
  --ls-tight:   -0.018em;
  --ls-normal:  -0.005em;
  --ls-wide:     0.02em;
  --ls-eyebrow:  0.14em;

  /* Fluid type scale */
  --fs-display-2xl: clamp(3.25rem, 1.2rem + 8.6vw, 7rem);
  --fs-display-xl:  clamp(2.75rem, 1.4rem + 5.6vw, 5rem);
  --fs-display-lg:  clamp(2.25rem, 1.3rem + 3.9vw, 3.75rem);
  --fs-h1:          clamp(2rem, 1.3rem + 2.9vw, 3rem);
  --fs-h2:          clamp(1.625rem, 1.2rem + 1.8vw, 2.25rem);
  --fs-h3:          clamp(1.375rem, 1.1rem + 1.1vw, 1.75rem);
  --fs-h4:          clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --fs-lead:        clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --fs-body-lg:     1.125rem;
  --fs-body:        1rem;
  --fs-body-sm:     0.9375rem;
  --fs-caption:     0.8125rem;
  --fs-overline:    0.75rem;
  --fs-micro:       0.6875rem;

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.5rem;
  --space-6:  2rem;
  --space-7:  2.5rem;
  --space-8:  3rem;
  --space-9:  4rem;
  --space-10: 5rem;
  --space-11: 6rem;
  --space-12: 8rem;

  --section-y:       clamp(4rem, 2rem + 8vw, 9rem);
  --section-y-tight: clamp(3rem, 1.5rem + 6vw, 6rem);

  --container-xl:  1200px;
  --container-2xl: 1360px;
  --container-3xl: 1600px;
  --gutter:        clamp(1.25rem, 0.5rem + 3vw, 4rem);

  /* Radius */
  --radius-xs:   3px;
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   14px;
  --radius-xl:   20px;
  --radius-2xl:  28px;
  --radius-pill: 999px;

  /* Elevation */
  --shadow-xs:       0 1px 2px rgba(0,0,0,.40);
  --shadow-sm:       0 2px 6px rgba(0,0,0,.40), 0 1px 2px rgba(0,0,0,.30);
  --shadow-md:       0 8px 24px rgba(0,0,0,.45), 0 2px 6px rgba(0,0,0,.35);
  --shadow-lg:       0 18px 48px rgba(0,0,0,.55), 0 6px 16px rgba(0,0,0,.40);
  --shadow-xl:       0 32px 80px rgba(0,0,0,.60), 0 12px 28px rgba(0,0,0,.45);
  --shadow-accent:   0 8px 28px rgba(255,90,31,.32);
  --shadow-accent-sm:0 2px 12px rgba(255,90,31,.28);
  --inner-top-light: inset 0 1px 0 rgba(255,255,255,.06);
  --inner-hairline:  inset 0 0 0 1px var(--border-subtle);

  /* Motion */
  --dur-instant: 80ms;
  --dur-fast:    140ms;
  --dur-base:    220ms;
  --dur-slow:    360ms;
  --dur-slower:  560ms;
  --dur-count:   1600ms;

  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:   cubic-bezier(0.65, 0, 0.35, 1);
  --ease-emphasis: cubic-bezier(0.34, 1.2, 0.4, 1);

  --t-colors:    color var(--dur-fast) var(--ease-standard),
                 background-color var(--dur-fast) var(--ease-standard),
                 border-color var(--dur-fast) var(--ease-standard);
  --t-transform: transform var(--dur-base) var(--ease-out);
  --t-all:       all var(--dur-base) var(--ease-standard);

  /* Z-index */
  --z-base:     0;
  --z-raised:   10;
  --z-sticky:   100;
  --z-nav:      200;
  --z-dropdown: 300;
  --z-overlay:  400;
  --z-drawer:   500;
  --z-modal:    600;
  --z-toast:    700;
  --z-max:      9999;
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-base);
  color: var(--text-primary);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  width: 100%;
}

::selection { background: var(--accent); color: var(--text-on-accent); }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--text-accent); }

img, svg, video { display: block; max-width: 100%; }

button, input, select, textarea { font: inherit; color: inherit; }

:where(h1,h2,h3,h4,h5,h6) {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-snug);
  color: var(--text-primary);
}
:where(p) { margin: 0; }

:where(a,button,input,select,textarea,[tabindex]):focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

/* Thin premium scrollbar */
* { scrollbar-width: thin; scrollbar-color: var(--steel-600) transparent; }
*::-webkit-scrollbar { width: 8px; }
*::-webkit-scrollbar-thumb {
  background: var(--steel-700);
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  background-clip: content-box;
}

/* ── Animations ───────────────────────────────────────────── */
@keyframes zn-fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes zn-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes zn-pulse-live {
  0%   { box-shadow: 0 0 0 0   rgba(255,90,31,.45); }
  70%  { box-shadow: 0 0 0 8px rgba(255,90,31,0); }
  100% { box-shadow: 0 0 0 0   rgba(255,90,31,0); }
}
@keyframes zn-shimmer {
  from { background-position: -200% 0; }
  to   { background-position:  200% 0; }
}
@keyframes zn-route-dash {
  to { stroke-dashoffset: -1000; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── Layout utilities ─────────────────────────────────────── */
.znt-container {
  width: 100%;
  max-width: var(--container-2xl);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.znt-container--wide {
  max-width: var(--container-3xl);
}
.znt-container--narrow {
  max-width: var(--container-xl);
}

.znt-section {
  padding-block: var(--section-y);
}
.znt-section--tight {
  padding-block: var(--section-y-tight);
}
.znt-section--dark { background: var(--bg-page); }
.znt-section--panel { background: var(--surface-1); }
.znt-section--card  { background: var(--surface-2); }

/* ── Page hero (shared across page templates) ───────────────── */
.znt-page-hero {
  background: var(--bg-page-deep);
  border-bottom: 1px solid var(--border-subtle);
  padding-block: clamp(4rem, 2rem + 8vw, 8rem) clamp(3rem, 1.5rem + 5vw, 6rem);
  position: relative;
  overflow: hidden;
}

.znt-page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 50%, rgba(255,90,31,0.06), transparent);
  pointer-events: none;
}

.znt-page-hero__inner { position: relative; z-index: 1; }
.znt-page-hero__copy  { max-width: 700px; }

.znt-page-hero__title {
  font-family: var(--font-display);
  font-weight: var(--fw-extra);
  font-size: var(--fs-display-lg);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-snug);
  color: var(--text-primary);
  margin-bottom: var(--space-5);
}

.znt-page-hero__lead {
  font-size: var(--fs-lead);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  max-width: 54ch;
}

/* ── Typography utilities ──────────────────────────────────── */
.znt-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  font-size: var(--fs-overline);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--text-accent);
  margin-bottom: var(--space-4);
}

.znt-section-title {
  font-family: var(--font-display);
  font-weight: var(--fw-extra);
  font-size: var(--fs-h2);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-snug);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.znt-section-lead {
  font-family: var(--font-sans);
  font-size: var(--fs-lead);
  line-height: var(--lh-relaxed);
  color: var(--text-secondary);
  max-width: 56ch;
}

.znt-wordmark {
  display: inline-flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-weight: var(--fw-extra);
  letter-spacing: var(--ls-tighter);
  line-height: 1;
  text-transform: uppercase;
  color: var(--text-primary);
}
.znt-wordmark strong { display: block; }
.znt-wordmark__sub {
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  font-size: 0.45em;
  letter-spacing: var(--ls-eyebrow);
  color: var(--text-muted);
}

/* ── Buttons ───────────────────────────────────────────────── */
.znt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body-sm);
  line-height: 1;
  letter-spacing: var(--ls-normal);
  white-space: nowrap;
  cursor: pointer;
  padding: 0 var(--space-5);
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  text-decoration: none;
  user-select: none;
  transition: var(--t-colors),
              transform var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-base) var(--ease-standard);
}
.znt-btn:hover { transform: translateY(-1px); }
.znt-btn:active { transform: translateY(0) scale(0.98); }
.znt-btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.znt-btn--primary {
  background: var(--accent);
  color: var(--text-on-accent);
}
.znt-btn--primary:hover {
  background: var(--accent-hover);
  box-shadow: var(--shadow-accent);
  color: var(--text-on-accent);
}
.znt-btn--primary:active { background: var(--accent-press); }

.znt-btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.znt-btn--secondary:hover {
  background: var(--state-hover);
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.znt-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
  padding-inline: var(--space-3);
}
.znt-btn--ghost:hover {
  background: var(--state-hover);
  color: var(--text-primary);
}

.znt-btn--solid {
  background: var(--steel-50);
  color: var(--navy-900);
}
.znt-btn--solid:hover { background: #fff; color: var(--navy-900); }

.znt-btn--sm  { height: 36px; font-size: var(--fs-caption); padding-inline: var(--space-4); border-radius: var(--radius-sm); }
.znt-btn--lg  { height: 54px; font-size: var(--fs-body); padding-inline: var(--space-6); }
.znt-btn--block { display: flex; width: 100%; }

/* ── Cards ─────────────────────────────────────────────────── */
.znt-card {
  position: relative;
  background: var(--surface-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), var(--inner-top-light);
  padding: var(--space-6);
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base),
              box-shadow var(--dur-base);
}
.znt-card--interactive { cursor: pointer; }
.znt-card--interactive:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg), var(--inner-top-light);
}

/* ── Service cards ──────────────────────────────────────────── */
.znt-service {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--surface-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm), var(--inner-top-light);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base),
              box-shadow var(--dur-base);
}
.znt-service::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-slow) var(--ease-out);
}
.znt-service:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.znt-service:hover::before { transform: scaleX(1); }

.znt-service__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--text-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.znt-service__icon i, .znt-service__icon svg { width: 24px; height: 24px; }

.znt-service__title {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-h4);
  color: var(--text-primary);
  letter-spacing: var(--ls-tight);
}
.znt-service__desc { font-size: var(--fs-body-sm); line-height: var(--lh-base); color: var(--text-secondary); }
.znt-service__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-accent);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body-sm);
}
.znt-service__link i { width: 16px; height: 16px; transition: transform var(--dur-base) var(--ease-out); }
.znt-service:hover .znt-service__link i { transform: translateX(4px); }

/* ── Stat / KPI ─────────────────────────────────────────────── */
.znt-stat { display: flex; flex-direction: column; gap: var(--space-2); }
.znt-stat__value {
  font-family: var(--font-display);
  font-weight: var(--fw-extra);
  font-size: clamp(2.5rem, 1.5rem + 3vw, 3.75rem);
  line-height: 1;
  letter-spacing: var(--ls-tight);
  color: var(--text-primary);
}
.znt-stat__unit { font-family: var(--font-mono); font-weight: var(--fw-medium); color: var(--accent); font-size: .42em; margin-left: 2px; }
.znt-stat__label { font-family: var(--font-mono); font-size: var(--fs-caption); letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted); }
.znt-stat--bordered { padding: var(--space-6); border: 1px solid var(--border-default); border-radius: var(--radius-lg); background: var(--surface-2); }

.znt-stat-grid {
  display: grid;
  gap: var(--space-4);
}
.znt-stat-grid > * {
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

/* ── Badge ──────────────────────────────────────────────────── */
.znt-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  font-size: var(--fs-micro);
  letter-spacing: .06em;
  text-transform: uppercase;
  line-height: 1;
  padding: 5px 9px;
  border-radius: var(--radius-sm);
  background: var(--state-disabled-bg);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
}
.znt-badge--accent { background: var(--accent-soft); color: var(--text-accent); border-color: transparent; }
.znt-badge--success { background: var(--success-bg); color: var(--success-fg); border-color: transparent; }
.znt-badge__dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.znt-badge--live .znt-badge__dot { background: var(--accent); animation: zn-pulse-live 1.8s infinite; }

/* ── Forms ──────────────────────────────────────────────────── */
.znt-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 640px) { .znt-form__grid { grid-template-columns: 1fr; } }

.znt-form__field { display: flex; flex-direction: column; gap: var(--space-2); }

.znt-form__label {
  font-family: var(--font-sans);
  font-weight: var(--fw-medium);
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
}
.znt-form__input,
.znt-form__select,
.znt-form__textarea {
  width: 100%;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-body-sm);
  padding: 0.75rem 1rem;
  transition: border-color var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-fast) var(--ease-standard);
  appearance: none;
}
.znt-form__input::placeholder,
.znt-form__textarea::placeholder { color: var(--text-muted); }
.znt-form__input:focus,
.znt-form__select:focus,
.znt-form__textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}
.znt-form__textarea { resize: vertical; min-height: 120px; line-height: var(--lh-relaxed); }

.znt-form__actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}
.znt-form__note { font-size: var(--fs-caption); color: var(--text-muted); margin: 0; }

.znt-form__response {
  font-size: var(--fs-body-sm);
  border-radius: var(--radius-sm);
  padding: 0;
  margin-top: var(--space-3);
}
.znt-form__response.success { color: var(--success-fg); }
.znt-form__response.error   { color: var(--error-fg); }

/* ── CTA Block ──────────────────────────────────────────────── */
.znt-cta-block {
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  box-shadow: var(--shadow-lg), var(--inner-top-light);
}
.znt-cta-block__title {
  font-family: var(--font-display);
  font-weight: var(--fw-extra);
  font-size: var(--fs-h1);
  letter-spacing: var(--ls-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}
.znt-cta-block__desc {
  font-size: var(--fs-lead);
  color: var(--text-secondary);
  max-width: 48ch;
  margin-inline: auto;
  margin-bottom: var(--space-7);
  line-height: var(--lh-relaxed);
}
.znt-cta-block__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Section header ─────────────────────────────────────────── */
.znt-sec-header { margin-bottom: var(--space-10); }
.znt-sec-header--center { text-align: center; }
.znt-sec-header--center .znt-section-lead { margin-inline: auto; }

/* ── Divider ─────────────────────────────────────────────────── */
.znt-divider { width: 100%; height: 1px; background: var(--border-default); border: none; margin: 0; }
.znt-divider--accent { background: var(--accent); height: 2px; width: 48px; border-radius: 2px; }

/* ── Grid helpers ────────────────────────────────────────────── */
.znt-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.znt-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.znt-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

@media (max-width: 1024px) { .znt-grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px)  {
  .znt-grid-2, .znt-grid-3, .znt-grid-4 { grid-template-columns: 1fr; }
}

/* ── Scroll-reveal animation class ──────────────────────────── */
.znt-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slower) var(--ease-out),
              transform var(--dur-slower) var(--ease-out);
}
.znt-reveal.znt-revealed {
  opacity: 1;
  transform: translateY(0);
}
.znt-reveal[data-delay="100"] { transition-delay: 100ms; }
.znt-reveal[data-delay="200"] { transition-delay: 200ms; }
.znt-reveal[data-delay="300"] { transition-delay: 300ms; }
.znt-reveal[data-delay="400"] { transition-delay: 400ms; }
.znt-reveal[data-delay="500"] { transition-delay: 500ms; }

/* ── Utility ─────────────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.znt-accent-text { color: var(--text-accent); }
.znt-mono { font-family: var(--font-mono); }
.znt-text-muted { color: var(--text-muted); }

/* ── Motion layer (v1.2.0) ───────────────────────────────────── */
/* primary button sheen sweep */
.znt-btn--primary { position: relative; overflow: hidden; }
.znt-btn--primary::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 36%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.32), transparent);
  transform: skewX(-18deg) translateX(-160%);
  transition: transform 0.55s var(--ease-out);
  pointer-events: none;
}
.znt-btn--primary:hover::after { transform: skewX(-18deg) translateX(430%); }

/* CTA panel — animated road lane */
.znt-cta-block { position: relative; overflow: hidden; }
.znt-cta-block::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 24px;
  height: 2px;
  background-image: linear-gradient(90deg, var(--accent) 0 22px, transparent 22px 60px);
  background-size: 60px 2px;
  opacity: 0.22;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
  animation: znt-lane-move 1.8s linear infinite;
  pointer-events: none;
}
@keyframes znt-lane-move { to { background-position: -60px 0; } }

/* 3D tilt cards (transform driven by main.js) */
.znt-service, .znt-value-card, .znt-fleet-card { transform-style: preserve-3d; }

@media (prefers-reduced-motion: reduce) {
  .znt-btn--primary::after { display: none; }
  .znt-cta-block::before { animation: none; }
}