/* =========================================================================
   TKT PUMPS · BASE STYLES
   Resets, document defaults, typography ramp, container.
   Import AFTER tokens.css and fonts.css.
   ========================================================================= */

/* ────────────── Reset ────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-weight: var(--w-book);
  font-size: var(--t-body);
  line-height: 1.55;
  color: var(--fg-1);
  background: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv01";
}

img, svg, video { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--tkt-blue-600); }
ul, ol { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--tkt-blue-200); color: var(--tkt-blue-900); }

/* ────────────── Container ────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad-desktop);
  padding-right: var(--container-pad-desktop);
}
@media (max-width: 1023px) {
  .container { padding-left: var(--container-pad-tablet); padding-right: var(--container-pad-tablet); }
}
@media (max-width: 640px) {
  .container { padding-left: var(--container-pad-mobile); padding-right: var(--container-pad-mobile); }
}

/* ────────────── Type ramp (fluid) ──────────────
   Each class clamps from desktop down to mobile (~65%).
   USE THESE CLASSES — never inline font-size.                         */

.t-display-1 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: clamp(56px, 9vw, 128px);
  line-height: 0.95; letter-spacing: var(--ls-display); margin: 0;
}
.t-display-2 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: clamp(48px, 7vw, 96px);
  line-height: 0.98; letter-spacing: var(--ls-display); margin: 0;
}
.t-title-1 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: clamp(40px, 5.4vw, 72px);
  line-height: 1.02; letter-spacing: -0.022em; margin: 0;
}
.t-title-2 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.05; letter-spacing: -0.020em; margin: 0;
}
.t-title-3 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.10; letter-spacing: var(--ls-title); margin: 0;
}
.t-heading-1 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.18; letter-spacing: -0.012em; margin: 0;
}
.t-heading-2 {
  font-family: var(--font-display); font-weight: var(--w-demi);
  font-size: clamp(19px, 1.8vw, 22px);
  line-height: 1.22; letter-spacing: var(--ls-heading); margin: 0;
}
.t-heading-3 {
  font-family: var(--font-display); font-weight: var(--w-demi);
  font-size: 18px; line-height: 1.32; letter-spacing: -0.003em; margin: 0;
}
.t-body-lg {
  font-family: var(--font-body); font-weight: var(--w-book);
  font-size: 18px; line-height: 1.55; margin: 0;
}
.t-body {
  font-family: var(--font-body); font-weight: var(--w-book);
  font-size: 16px; line-height: 1.55; margin: 0;
}
.t-body-sm {
  font-family: var(--font-body); font-weight: var(--w-book);
  font-size: 14px; line-height: 1.55; margin: 0;
}
.t-caption {
  font-family: var(--font-body); font-weight: var(--w-medium);
  font-size: 12px; line-height: 1.45; letter-spacing: 0.02em; margin: 0; color: var(--fg-3);
}
.t-eyebrow {
  font-family: var(--font-mono); font-weight: var(--w-bold);
  font-size: 11px; line-height: 1; letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase; color: var(--tkt-blue-600); margin: 0;
}
.t-mono {
  font-family: var(--font-mono); font-weight: var(--w-medium);
  font-size: 13px; line-height: 1.6; letter-spacing: var(--ls-mono); margin: 0;
}
.t-micro {
  font-family: var(--font-mono); font-weight: var(--w-bold);
  font-size: 10px; line-height: 1; letter-spacing: 0.18em;
  text-transform: uppercase; margin: 0;
}

/* Italic accent (used for keyword highlights in headlines) */
.t-em {
  font-style: italic;
  font-weight: var(--w-medium);
  color: var(--tkt-orange-600);
}

/* text colors */
.fg-1 { color: var(--fg-1); }
.fg-2 { color: var(--fg-2); }
.fg-3 { color: var(--fg-3); }
.fg-on-dark-1 { color: var(--fg-on-dark-1); }
.fg-on-dark-2 { color: var(--fg-on-dark-2); }
.fg-brand     { color: var(--tkt-blue-700); }
.fg-action    { color: var(--tkt-orange-600); }
.fg-success   { color: var(--semantic-success); }
.fg-warn      { color: var(--semantic-warn); }
.fg-danger    { color: var(--semantic-danger); }

/* ────────────── Stack helpers (use sparingly) ────────────── */
.stack > * + * { margin-top: var(--stack-gap, 16px); }
.row    { display: flex; align-items: center; gap: var(--row-gap, 12px); }
.row-sb { display: flex; align-items: center; justify-content: space-between; gap: var(--row-gap, 12px); }

/* ────────────── Section pattern ────────────── */
.section {
  padding-top: var(--s-12);
  padding-bottom: var(--s-12);
}
@media (max-width: 768px) {
  .section { padding-top: var(--s-10); padding-bottom: var(--s-10); }
}

/* ────────────── Aurora & grid backgrounds (signature) ────────────── */
.bg-aurora {
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 80% at 20% 0%, rgba(168,210,247,0.65), transparent 60%),
    radial-gradient(80% 60% at 90% 100%, rgba(255,200,140,0.38), transparent 65%),
    linear-gradient(180deg, #F4F7FB 0%, #EAF1F9 100%);
  pointer-events: none;
}
.bg-aurora.subtle {
  background:
    radial-gradient(100% 60% at 50% 0%, rgba(168,210,247,0.45), transparent 60%),
    linear-gradient(180deg, var(--bg-canvas) 0%, var(--bg-tint) 100%);
}
.bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,40,80,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,40,80,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 100%);
  -webkit-mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 100%);
  pointer-events: none;
}
.bg-dot::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(0,40,80,0.025) 1px, transparent 1px);
  background-size: 3px 3px;
  pointer-events: none;
}

/* Dark surface aurora (for footer) */
.bg-aurora-dark {
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 12% 0%, rgba(45,141,224,0.32), transparent 60%),
    radial-gradient(50% 50% at 95% 30%, rgba(224,112,0,0.18), transparent 70%),
    radial-gradient(80% 60% at 50% 110%, rgba(0,80,144,0.5), transparent 70%);
  pointer-events: none;
}
.bg-grid-dark {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 100%);
  -webkit-mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 100%);
  pointer-events: none;
}

/* ────────────── Accessibility ────────────── */
:focus-visible {
  outline: 2px solid var(--tkt-blue-500);
  outline-offset: 3px;
  border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ────────────── Print ────────────── */
@media print {
  body { background: #fff; color: #000; }
  .no-print { display: none !important; }
}