/* base.css — Tokens, reset, typography */

:root {
  --u: 4px;
  color-scheme: light;

  /* Surface system (luxury corporate) */
  --color-bg: #f7f6f3; /* Soft White */
  --color-surface: #ffffff; /* Pure White */
  --color-surface-2: #ffffff;
  --color-text: #1a1a1a; /* Neutral Dark Text */
  --color-muted: rgba(26, 26, 26, 0.72);
  --color-border: rgba(198, 167, 86, 0.15); /* Gold tint border */

  --color-heading: #0f2a4a; /* Primary Deep Blue */
  --color-on-blue: #ffffff;
  --color-on-gold: #0f2a4a;

  /* Brand palette (STRICT) */
  --brand-royal-blue: #0f2a4a; /* Deep Blue (base) */
  --brand-royal-blue-strong: #122f5b; /* Deep Blue (variant) */
  --brand-royal-blue-soft: #1b3e73; /* Deep Blue (soft variant) */

  --brand-dorado: #c6a756; /* Premium Gold (base) */
  --brand-dorado-subtle: #a88734; /* Premium Gold (deep) */
  --brand-dorado-light: #e4c978; /* Premium Gold (light) */

  /* Success (optional, controlled) */
  --brand-emerald: #1fbf8a;
  --brand-emerald-strong: #148a63;

  /* Brand palette aliases (enforced naming) */
  --brand-gold: var(--brand-dorado);
  --brand-gold-subtle: var(--brand-dorado-subtle);

  /* Brand opacities */
  --brand-royal-blue-a10: rgba(15, 42, 74, 0.10);
  --brand-royal-blue-a12: rgba(15, 42, 74, 0.12);
  --brand-royal-blue-a14: rgba(15, 42, 74, 0.14);
  --brand-royal-blue-a18: rgba(15, 42, 74, 0.18);
  --brand-royal-blue-a20: rgba(15, 42, 74, 0.20);
  --brand-royal-blue-a26: rgba(15, 42, 74, 0.26);
  --brand-royal-blue-a35: rgba(15, 42, 74, 0.35);
  --brand-royal-blue-a42: rgba(15, 42, 74, 0.42);
  --brand-royal-blue-a45: rgba(15, 42, 74, 0.45);
  --brand-royal-blue-a60: rgba(15, 42, 74, 0.60);
  --brand-royal-blue-a65: rgba(15, 42, 74, 0.65);

  --brand-dorado-a10: rgba(198, 167, 86, 0.10);
  --brand-dorado-a12: rgba(198, 167, 86, 0.12);
  --brand-dorado-a18: rgba(198, 167, 86, 0.18);
  --brand-dorado-a35: rgba(198, 167, 86, 0.35);

  --brand-gold-a10: var(--brand-dorado-a10);
  --brand-gold-a12: var(--brand-dorado-a12);
  --brand-gold-a18: var(--brand-dorado-a18);
  --brand-gold-a35: var(--brand-dorado-a35);

  --brand-gold-subtle-a08: rgba(168, 135, 52, 0.08);
  --brand-gold-subtle-a12: rgba(168, 135, 52, 0.12);
  --brand-gold-subtle-a14: rgba(168, 135, 52, 0.14);
  --brand-gold-subtle-a16: rgba(168, 135, 52, 0.16);
  --brand-gold-subtle-a35: rgba(168, 135, 52, 0.35);
  --brand-gold-subtle-a50: rgba(168, 135, 52, 0.50);

  --brand-emerald-a12: rgba(31, 191, 138, 0.12);
  --brand-emerald-a14: rgba(31, 191, 138, 0.14);
  --brand-emerald-a35: rgba(31, 191, 138, 0.35);
  --brand-emerald-a45: rgba(31, 191, 138, 0.45);

  --color-primary: var(--brand-royal-blue-soft);
  --color-primary-strong: var(--brand-royal-blue-strong);
  --color-gold: var(--brand-gold);
  --color-gold-strong: var(--brand-gold-subtle);
  --color-warning: var(--brand-gold-subtle);
  --color-danger: #b42318;
  --color-success: var(--brand-emerald);

  --shadow-sm: 0 10px 24px rgba(15, 42, 74, 0.10);
  --shadow-md: 0 18px 42px rgba(15, 42, 74, 0.14);

  --radius-sm: 12px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  --space-1: calc(var(--u) * 1);
  --space-2: calc(var(--u) * 2);
  --space-3: calc(var(--u) * 3);
  --space-4: calc(var(--u) * 4);
  --space-5: calc(var(--u) * 5);
  --space-6: calc(var(--u) * 6);
  --space-7: calc(var(--u) * 8);
  --space-8: calc(var(--u) * 10);
  --space-9: calc(var(--u) * 12);
  --space-10: calc(var(--u) * 16);

  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";

  --text-xs: 12px;
  --text-sm: 13px;
  --text-md: clamp(15px, 0.35vw + 14px, 18px);
  --text-lg: clamp(16px, 0.45vw + 15px, 19px);
  --h1: clamp(28px, 2.1vw + 18px, 44px);
  --h2: clamp(18px, 1.05vw + 14px, 28px);
  --h3: clamp(15px, 0.65vw + 13px, 20px);

  --lh-tight: 1.15;
  --lh-normal: 1.55;
}

/* Global ergonomics + overflow safety */
html { overflow-x: clip; }
body { overflow-x: clip; }

img, svg, video, canvas {
  max-width: 100%;
  height: auto;
}

/* Minimum interactive target size (WCAG / mobile ergonomics) */
button,
input,
select,
textarea {
  font: inherit;
}

input:not([type="checkbox"]):not([type="radio"]),
select,
textarea {
  min-height: 44px;
}

@media (min-width: 1440px) {
  :root { --u: 4.5px; }
}

@media (min-width: 1920px) {
  :root { --u: 5px; }
}

@media (min-width: 2560px) {
  :root { --u: 5.5px; }
}

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

html {
  text-size-adjust: 100%;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--lh-normal);
  color: var(--color-text);
  overflow-x: clip;
  background: var(--color-bg);
}

main {
  flex: 1 0 auto;
}

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

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--brand-gold);
  outline-offset: 2px;
  border-radius: 10px;
}

h1, h2, h3 {
  margin: 0;
  letter-spacing: -0.02em;
  color: var(--color-heading);
}

h1 { font-size: var(--h1); line-height: var(--lh-tight); }
h2 { font-size: var(--h2); line-height: 1.25; }
h3 { font-size: var(--h3); line-height: 1.3; }

p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding-left: 18px;
}

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

main a:not(.btn):not(.nav-phone) {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
  text-decoration-color: var(--brand-gold-a35);
}

main a:not(.btn):not(.nav-phone):hover {
  color: var(--color-primary-strong);
  text-decoration-color: var(--brand-gold);
}