/* =========================================================================
   Riveros | Torres & Cía. — Design Tokens
   --------------------------------------------------------------------------
   Warm-editorial system. Near-white surfaces, warm near-black ink, restrained
   bordeaux accent. Fraunces (display) + Bricolage Grotesque (UI/body).
   Variable fonts via Google Fonts. No additional .ttf files ship with this
   system.

   Type choice (state-it-up-front, per house rules):
     display = Fraunces        — variable, opsz auto, weights 300–500
     ui/body = Bricolage Grotesque — variable, weights 400/500/600
   ========================================================================= */

/* Local brand fonts.
   The user supplied the full Fraunces variable font (axes: opsz, wght, SOFT,
   WONK) plus its italic companion. We use those exclusively for display.
   Bricolage Grotesque is still pulled from Google Fonts — drop in <head>:

     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,500;12..96,600&display=swap" rel="stylesheet">
*/

@font-face {
  font-family: "Fraunces";
  src: url("./fonts/Fraunces-VariableFont_SOFT_WONK_opsz_wght.ttf") format("truetype-variations"),
       url("./fonts/Fraunces-VariableFont_SOFT_WONK_opsz_wght.ttf") format("truetype");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Fraunces";
  src: url("./fonts/Fraunces-Italic-VariableFont_SOFT_WONK_opsz_wght.ttf") format("truetype-variations"),
       url("./fonts/Fraunces-Italic-VariableFont_SOFT_WONK_opsz_wght.ttf") format("truetype");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

:root {
  /* ---------------------------------------------------------------------
     COLOR — raw tokens
     Pick these from the catalogue. Do not improvise hex values mid-design.
     --------------------------------------------------------------------- */

  /* Surfaces */
  --bg-base:     #FAFAF7;   /* near-white — primary surface, ~80% of every view */
  --bg-elevated: #F1EFE9;   /* slightly warm off-white — quoted blocks, alt rows */
  --bg-deep:     #1A1414;   /* near-black with a bordeaux undertone — the one dark moment per page */

  /* Ink */
  --ink:         #1A1A1A;   /* primary text on near-white */
  --ink-muted:   #5F5755;   /* secondary text, warm gray */
  --ink-subtle:  #8F8785;   /* tertiary, captions, hairline labels */
  --ink-inverse: #FAFAF7;   /* near-white text on --bg-deep */

  /* Lines */
  --line:        #DDD8D2;   /* hairline borders — the only border weight */
  --line-deep:   #2D2222;   /* hairline on dark surfaces */

  /* Accent — restrained bordeaux, the signature */
  --accent:       #6B1F2E;
  --accent-deep:  #4E1320;          /* hover only */
  --accent-tint:  rgba(107, 31, 46, 0.08);  /* subtle highlight bg, sparingly */

  /* Functional (rare in this product) */
  --danger:  #8E2C2C;
  --success: #3B6B43;

  /* ---------------------------------------------------------------------
     SEMANTIC — name-by-role aliases. Prefer these in components.
     --------------------------------------------------------------------- */
  --fg-1: var(--ink);          /* primary text */
  --fg-2: var(--ink-muted);    /* secondary text */
  --fg-3: var(--ink-subtle);   /* tertiary text */
  --fg-inverse: var(--ink-inverse);
  --link: var(--ink);
  --link-hover-underline: var(--accent);

  /* ---------------------------------------------------------------------
     TYPE FAMILIES
     --------------------------------------------------------------------- */
  --font-display: "Fraunces", "Times New Roman", Georgia, serif;
  --font-ui:      "Bricolage Grotesque", ui-sans-serif, sans-serif;
  --font-mono:    ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* ---------------------------------------------------------------------
     TYPE SCALE — clamp()-driven, extreme contrast
     --------------------------------------------------------------------- */
  --fs-hero:        clamp(3rem, 7vw, 6.5rem);     /* 48 → 104 */
  --fs-section:     clamp(2rem, 4vw, 3.25rem);    /* 32 → 52 */
  --fs-subsection:  clamp(1.375rem, 2.2vw, 1.875rem); /* 22 → 30 */
  --fs-pullquote:   clamp(1.25rem, 2vw, 1.625rem);/* 20 → 26 */
  --fs-body:        1.0625rem;                    /* 17 */
  --fs-body-lg:     1.1875rem;                    /* 19 */
  --fs-caption:     0.8125rem;                    /* 13 */
  --fs-eyebrow:     0.875rem;                     /* 14 */
  --fs-button:      0.9375rem;                    /* 15 */

  /* Tracking */
  --tr-hero:    -0.02em;
  --tr-section: -0.015em;
  --tr-tight:   -0.01em;
  --tr-normal:   0;
  --tr-caption:  0.02em;
  --tr-eyebrow:  0.15em;

  /* Line heights */
  --lh-display: 1.05;
  --lh-section: 1.1;
  --lh-snug:    1.3;
  --lh-body:    1.65;
  --lh-tight:   1.2;

  /* ---------------------------------------------------------------------
     LAYOUT
     --------------------------------------------------------------------- */
  --container-max: 1240px;
  --container-pad: clamp(1.25rem, 5vw, 3rem);
  --section-gap:   clamp(6rem, 12vh, 10rem);

  /* Spacing (rare — prefer Tailwind utilities or ad-hoc values per layout) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4.5rem;
  --space-12: 6rem;
  --space-16: 10rem;

  /* Radii */
  --r-none: 0;
  --r-sm:   2px;
  --r-md:   4px;     /* buttons, inputs — max for any rectangular element */
  --r-pill: 999px;   /* used ONLY for the WhatsApp affordance */

  /* Hairline — the only shadow that exists */
  --hairline: 0 1px 0 var(--line);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-std: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 180ms;
  --dur-base: 250ms;
  --dur-reveal: 700ms;
}

/* =========================================================================
   GLOBAL — base typography + surface
   ========================================================================= */
html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: var(--lh-body);
  color: var(--fg-1);
  background: var(--bg-base);
  font-feature-settings: "ss01", "kern";
}

/* Paper-grain overlay — the only background ornament. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.03;
  z-index: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* =========================================================================
   SEMANTIC TYPE — apply via class OR via element if you opt in globally
   ========================================================================= */

.t-hero, h1.t-hero {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 300;
  font-variation-settings: "opsz" 144;
  letter-spacing: var(--tr-hero);
  line-height: var(--lh-display);
  color: var(--fg-1);
}

.t-section {
  font-family: var(--font-display);
  font-size: var(--fs-section);
  font-weight: 400;
  font-variation-settings: "opsz" 96;
  letter-spacing: var(--tr-section);
  line-height: var(--lh-section);
}

.t-subsection {
  font-family: var(--font-display);
  font-size: var(--fs-subsection);
  font-weight: 400;
  font-variation-settings: "opsz" 48;
  letter-spacing: var(--tr-tight);
  line-height: var(--lh-snug);
}

.t-pullquote {
  font-family: var(--font-display);
  font-size: var(--fs-pullquote);
  font-style: italic;
  font-weight: 400;
  letter-spacing: var(--tr-tight);
  line-height: 1.35;
  color: var(--fg-1);
}

.t-eyebrow {
  font-family: var(--font-ui);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: var(--tr-eyebrow);
  text-transform: uppercase;
  color: var(--fg-2);
}

.t-body {
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: var(--lh-body);
  color: var(--fg-1);
}

.t-body-lg {
  font-family: var(--font-ui);
  font-size: var(--fs-body-lg);
  font-weight: 400;
  line-height: 1.55;
  color: var(--fg-1);
}

.t-caption {
  font-family: var(--font-ui);
  font-size: var(--fs-caption);
  font-weight: 400;
  letter-spacing: var(--tr-caption);
  color: var(--fg-3);
}

.t-button {
  font-family: var(--font-ui);
  font-size: var(--fs-button);
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* =========================================================================
   PRIMITIVES — opt-in component classes (used in preview cards + UI kit)
   ========================================================================= */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 12px 22px;
  background: var(--accent);
  color: var(--ink-inverse);
  border: 1px solid var(--accent);
  border-radius: var(--r-md);
  font-family: var(--font-ui);
  font-size: var(--fs-button);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: background var(--dur-base) var(--ease-std),
              border-color var(--dur-base) var(--ease-std);
  cursor: pointer;
}
.btn-primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

.btn-secondary {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  color: var(--fg-1);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  font-family: var(--font-ui);
  font-size: var(--fs-button);
  font-weight: 500;
}
.btn-secondary .arrow {
  display: inline-block;
  transition: transform var(--dur-base) var(--ease-std);
}
.btn-secondary:hover { border-bottom-color: var(--accent); color: var(--accent); }
.btn-secondary:hover .arrow { transform: translateX(2px); }

.input-line {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  padding: 10px 0;
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  color: var(--fg-1);
  outline: none;
  transition: border-color var(--dur-base) var(--ease-std);
}
.input-line:focus { border-bottom-width: 2px; border-bottom-color: var(--accent); padding-bottom: 9px; }
.input-line::placeholder { color: var(--fg-3); }

a.link-prose {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 0.18em;
  transition: text-decoration-color var(--dur-base) var(--ease-std);
}
a.link-prose:hover { text-decoration-color: var(--accent); }

/* Focus ring — always visible */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* =========================================================================
   MOTION — pure CSS reveal sequence
   Add .reveal to elements; chain delays with --d (in ms).
   ========================================================================= */

@keyframes reveal-rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  animation: reveal-rise var(--dur-reveal) var(--ease-out) forwards;
  animation-delay: calc(var(--d, 0) * 1ms);
}
