/* =============================================================
   BONAVIOX · DESIGN TOKENS
   Premium joint wellness — pharmacy refinement, editorial calm
   =============================================================
   Load order:
   1. Google Fonts (DM Serif Display + Inter) — preconnect + <link> in HTML head
      (do NOT @import here — that makes fonts render-block on this whole file)
   2. This file
   ============================================================= */

:root {
  /* ---------- COLOR · CORE PALETTE ---------- */
  --bv-navy-900:        #0F2744; /* Primary navy — packaging, hero, primary surface */
  --bv-navy-800:        #132F52; /* Secondary navy — gradients, supporting surfaces */
  --bv-navy-700:        #18375E; /* Hover/lifted navy surface */
  --bv-navy-1000:       #0A1C33; /* Deepest navy — atmospheric base */

  --bv-rose-400:        #D7B19F; /* Lifted rose gold (soft hover, highlights) */
  --bv-rose-500:        #C89A84; /* Primary rose gold — accent, CTAs, dividers */
  --bv-rose-600:        #B58571; /* Pressed rose gold */

  --bv-soft-white:      #F4F2EE; /* Primary type on dark — never pure white */
  --bv-muted-white:     #D8DDE5; /* Secondary type, captions, UI support */
  --bv-paper:           #EFEAE3; /* Warm paper for light surfaces */
  --bv-paper-deep:      #E5DFD5; /* Card edges on paper */

  --bv-matte-black:     #111111; /* Bottle cap, neutral contrast */
  --bv-ink:             #1B1B1B; /* Body type on light surfaces */

  /* ---------- COLOR · SEMANTIC ---------- */
  --bg:                 var(--bv-navy-900);
  --bg-elevated:        var(--bv-navy-800);
  --bg-paper:           var(--bv-paper);
  --bg-deep:            var(--bv-navy-1000);

  --fg-1:               var(--bv-soft-white);   /* primary text on dark */
  --fg-2:               var(--bv-muted-white);  /* secondary text on dark */
  --fg-3:               rgba(244, 242, 238, 0.55);
  --fg-on-paper-1:      var(--bv-ink);
  --fg-on-paper-2:      #4A4A4A;
  --fg-on-paper-3:      #7A7A7A;

  --accent:             var(--bv-rose-500);
  --accent-hover:       var(--bv-rose-400);
  --accent-pressed:     var(--bv-rose-600);

  --hairline:           rgba(200, 154, 132, 0.35); /* rose hairlines on dark */
  --hairline-soft:      rgba(244, 242, 238, 0.12);
  --hairline-paper:     rgba(27, 27, 27, 0.12);

  /* ---------- TYPE · FAMILIES ---------- */
  --font-display: "DM Serif Display", "Canela", "Editorial New", "Times New Roman", serif;
  --font-sans:    "Inter", "Suisse Intl", "Helvetica Neue", "Manrope", system-ui, -apple-system, sans-serif;
  --font-mono:    "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;

  /* ---------- TYPE · SCALE (clamped, editorial) ---------- */
  --fs-display-1: clamp(56px, 7.2vw, 104px);  /* hero editorial */
  --fs-display-2: clamp(44px, 5.4vw, 76px);
  --fs-h1:        clamp(36px, 4.0vw, 56px);
  --fs-h2:        clamp(28px, 3.0vw, 40px);
  --fs-h3:        22px;
  --fs-h4:        18px;
  --fs-body-lg:   18px;
  --fs-body:      16px;
  --fs-body-sm:   14px;
  --fs-caption:   12px;
  --fs-eyebrow:   11px;

  /* ---------- TYPE · WEIGHTS ---------- */
  --fw-light:    300;
  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semi:     600;
  --fw-bold:     700;

  /* ---------- TYPE · LEADING & TRACKING ---------- */
  --lh-tight:    1.04;
  --lh-snug:     1.18;
  --lh-normal:   1.35;
  --lh-relaxed:  1.55;
  --lh-loose:    1.75;

  --tr-display:  -0.015em;     /* slight optical tighten on serif */
  --tr-body:     0em;
  --tr-eyebrow:  0.22em;       /* the brand's signature wide caps */
  --tr-label:    0.14em;
  --tr-caps-sm:  0.08em;

  /* ---------- SPACING (4 / 8 base, breathing room favored) ---------- */
  --sp-0:   0;
  --sp-1:   4px;
  --sp-2:   8px;
  --sp-3:   12px;
  --sp-4:   16px;
  --sp-5:   24px;
  --sp-6:   32px;
  --sp-7:   48px;
  --sp-8:   64px;
  --sp-9:   96px;
  --sp-10: 128px;
  --sp-11: 160px;

  /* ---------- RADII (restrained — pharma is square) ---------- */
  --r-0:  0px;
  --r-1:  2px;   /* hairline detail */
  --r-2:  4px;   /* default UI */
  --r-3:  8px;   /* cards */
  --r-4:  14px;  /* large surface */
  --r-pill: 999px;

  /* ---------- SHADOWS (soft, never aggressive) ---------- */
  --shadow-0: none;
  --shadow-1: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 2px rgba(0,0,0,0.25);
  --shadow-2: 0 8px 24px rgba(8, 18, 33, 0.35);
  --shadow-3: 0 20px 60px rgba(8, 18, 33, 0.45);
  --shadow-paper: 0 1px 0 rgba(255,255,255,0.6) inset, 0 12px 32px rgba(20, 28, 44, 0.10);

  /* ---------- BORDERS ---------- */
  --bd-hairline:    1px solid var(--hairline);
  --bd-hairline-2:  1px solid var(--hairline-soft);
  --bd-paper:       1px solid var(--hairline-paper);

  /* ---------- MOTION (calm, never bouncy) ---------- */
  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast:    160ms;
  --dur-base:    260ms;
  --dur-slow:    480ms;

  /* ---------- LAYOUT ---------- */
  --container-max: 1240px;
  --gutter:        clamp(16px, 4vw, 40px);
}

/* =============================================================
   BASE ELEMENT STYLES (semantic vars)
   ============================================================= */

html, body {
  background: var(--bg);
  color: var(--fg-1);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  font-weight: var(--fw-regular);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--bv-rose-500); color: var(--bv-navy-900); }

/* ----- DISPLAY / EDITORIAL ----- */
.bv-display-1, h1.bv-display {
  font-family: var(--font-display);
  font-size: var(--fs-display-1);
  font-weight: var(--fw-regular);
  line-height: var(--lh-tight);
  letter-spacing: var(--tr-display);
}
.bv-display-2 {
  font-family: var(--font-display);
  font-size: var(--fs-display-2);
  font-weight: var(--fw-regular);
  line-height: var(--lh-tight);
  letter-spacing: var(--tr-display);
}

h1, .bv-h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: var(--fw-regular);
  line-height: var(--lh-snug);
  letter-spacing: var(--tr-display);
  margin: 0 0 var(--sp-5);
}
h2, .bv-h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: var(--fw-regular);
  line-height: var(--lh-snug);
  letter-spacing: var(--tr-display);
  margin: 0 0 var(--sp-4);
}
h3, .bv-h3 {
  font-family: var(--font-sans);
  font-size: var(--fs-h3);
  font-weight: var(--fw-medium);
  line-height: var(--lh-normal);
  letter-spacing: 0;
  margin: 0 0 var(--sp-3);
}
h4, .bv-h4 {
  font-family: var(--font-sans);
  font-size: var(--fs-h4);
  font-weight: var(--fw-medium);
  line-height: var(--lh-normal);
  margin: 0 0 var(--sp-2);
}

/* ----- BODY ----- */
p, .bv-body {
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: var(--fg-2);
  margin: 0 0 var(--sp-4);
  text-wrap: pretty;
}
.bv-body-lg { font-size: var(--fs-body-lg); line-height: var(--lh-relaxed); }
.bv-body-sm { font-size: var(--fs-body-sm); line-height: var(--lh-normal); color: var(--fg-2); }
.bv-caption { font-size: var(--fs-caption); line-height: var(--lh-normal); color: var(--fg-3); letter-spacing: var(--tr-caps-sm); }

/* ----- SIGNATURE: EYEBROW (wide-tracked caps, often rose) ----- */
.bv-eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--tr-eyebrow);
  color: var(--accent);
}
.bv-label {
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--tr-label);
  color: var(--fg-2);
}

/* ----- LINKS ----- */
a, .bv-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
a:hover, .bv-link:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

/* ----- HAIRLINE DIVIDER (signature rose) ----- */
.bv-hairline {
  height: 1px;
  background: var(--hairline);
  border: 0;
  width: 100%;
}
.bv-hairline--short { width: 48px; }

/* ----- CODE ----- */
code, .bv-mono {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: rgba(244,242,238,0.06);
  padding: 1px 6px;
  border-radius: var(--r-1);
}