/* =========================================================================
   Placy Design System — web tokens for placy.com
   Adapted from the Fable design system's colors_and_type.css + editorial.css.
   Import this before any page-specific CSS.
   ========================================================================= */

/* Inter is loaded via <link rel="preconnect"> + <link rel="stylesheet"> in each page's
   <head> (not @import here) to avoid a serial render-blocking chain. */

:root {
  /* -------- Core color tokens (brand guide) -------- */
  --placy-black:        #1A1A1A;  /* primary ink */
  --placy-ginger:       #EFA943;  /* primary accent */
  --placy-blue:         #15B8FF;  /* secondary accent */
  --placy-green-warm:   #8ECA37;  /* tertiary accent */
  --placy-red:          #DA3A3A;  /* alerts / negative */
  --placy-cream:        #F9FBFC;  /* default page bg */
  --placy-warm-grey:    #E7ECEE;  /* card fill, dividers */
  --placy-light-grey:   #A4AEB5;  /* decorative secondary text (fails AA on cream — dark surfaces + oversized devices only) */
  --placy-grey-strong:  #66727A;  /* accessible secondary text on light surfaces (4.76:1 on cream, 4.94:1 on white) */
  --placy-mid-grey:     #8A8688;  /* borders, muted lines */
  --placy-white:        #FFFFFF;  /* cards on dark bg */
  --placy-dark-bg:      #0D0D0D;  /* dark-variant bg */

  /* -------- Semantic -------- */
  --bg:            var(--placy-cream);
  --bg-card:       var(--placy-warm-grey);
  --bg-inverse:    var(--placy-dark-bg);
  --fg1:           var(--placy-black);
  --fg2:           var(--placy-light-grey);
  --fg2-strong:    var(--placy-grey-strong);
  --fg-muted:      var(--placy-mid-grey);
  --fg-inverse:    var(--placy-white);
  --accent:        var(--placy-ginger);
  --accent-2:      var(--placy-blue);
  --border:        var(--placy-warm-grey);
  --border-strong: var(--placy-mid-grey);

  /* -------- Typography -------- */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --fs-display:    56px;
  --fs-h1:         40px;
  --fs-h2:         32px;
  --fs-h3:         24px;
  --fs-subhead:    20px;
  --fs-stat:       44px;
  --fs-body-lg:    18px;
  --fs-body:       16px;
  --fs-body-sm:    14px;
  --fs-footnote:   11px;
  --fs-label:      12px;

  --fw-regular:    400;
  --fw-medium:     500;
  --fw-semibold:   600;
  --fw-bold:       700;
  --fw-heavy:      800;

  --lh-tight:      1.15;
  --lh-snug:       1.25;
  --lh-body:       1.5;

  --tracking-tight:   -0.02em;
  --tracking-wide:     0.04em;

  /* -------- Spacing (4px base) -------- */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px;
  --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px;

  /* -------- Radii -------- */
  --r-sm: 6px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px; --r-pill: 999px;

  /* -------- Elevation (restrained: prefer borders) -------- */
  --shadow-sm: 0 1px 2px rgba(26,26,26,0.06);
  --shadow-md: 0 1px 2px rgba(26,26,26,0.06), 0 2px 8px rgba(26,26,26,0.04);
  --shadow-lg: 0 2px 4px rgba(26,26,26,0.06), 0 12px 28px rgba(26,26,26,0.08);

  /* -------- Motion: short, functional, no bounce -------- */
  --ease-out:  cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-fast:  150ms;
  --dur:       200ms;
  --dur-slow:  300ms;
}

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

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg1);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, .h1 { font-size: var(--fs-h1); font-weight: var(--fw-bold); line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); color: inherit; margin: 0; }
.display { font-size: var(--fs-display); font-weight: var(--fw-heavy); line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); }
h2, .h2 { font-size: var(--fs-h2); font-weight: var(--fw-bold); line-height: var(--lh-snug); letter-spacing: var(--tracking-tight); color: inherit; margin: 0; }
h3, .h3 { font-size: var(--fs-h3); font-weight: var(--fw-semibold); line-height: var(--lh-snug); color: inherit; margin: 0; }
.subhead { font-size: var(--fs-subhead); font-weight: var(--fw-regular); line-height: var(--lh-snug); }
.stat { font-size: var(--fs-stat); font-weight: var(--fw-bold); line-height: 1; letter-spacing: var(--tracking-tight); color: var(--fg1); font-variant-numeric: tabular-nums; }
p, .body { font-size: var(--fs-body); line-height: var(--lh-body); margin: 0; }
.body-sm { font-size: var(--fs-body-sm); line-height: var(--lh-body); }
.muted { color: var(--fg2); }
.footnote { font-size: var(--fs-footnote); color: var(--fg2); line-height: var(--lh-body); }
.label { font-size: var(--fs-label); font-weight: var(--fw-medium); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--fg2); }

a { color: inherit; }

/* =========================================================================
   Brand primitives
   ========================================================================= */
.placy-card {
  background: var(--placy-white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-5);
}
.placy-card--tinted { background: var(--bg-card); border: none; }

.placy-btn {
  font-family: var(--font-sans);
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-semibold);
  height: 44px;
  padding: 0 22px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.placy-btn--primary { background: var(--placy-black); color: var(--placy-white); }
.placy-btn--primary:hover { background: #000; }
.placy-btn--primary:active { transform: scale(0.98); }
.placy-btn--accent { background: var(--placy-ginger); color: var(--placy-black); }
.placy-btn--accent:hover { background: #E49A2F; }
.placy-btn--accent:active { transform: scale(0.98); }
.placy-btn--ghost { background: transparent; color: var(--placy-black); border-color: var(--border-strong); }
.placy-btn--ghost:hover { background: var(--bg-card); }
.placy-btn--ghost-inverse { background: transparent; color: var(--placy-white); border-color: rgba(255,255,255,0.24); }
.placy-btn--ghost-inverse:hover { background: rgba(255,255,255,0.08); }

.placy-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 24px; padding: 0 10px;
  border-radius: var(--r-pill);
  background: var(--bg-card);
  color: var(--fg1);
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
}

/* =========================================================================
   Editorial devices (from editorial.css)
   ========================================================================= */
.placy-kicker {
  font-size: var(--fs-label);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg2-strong);
}
.placy-rule { border: none; border-top: 1px solid var(--border); margin: 0; }
.placy-rule--strong { border-top-color: var(--border-strong); }
.placy-coords {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.04em;
  color: var(--fg2);
}
.placy-index {
  font-size: 120px;
  font-weight: var(--fw-heavy);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
  color: var(--placy-warm-grey);
  user-select: none;
}

/* Brand glow — dark surfaces ONLY, one per surface, static */
.placy-glow {
  position: absolute;
  width: var(--glow-size, 900px);
  height: var(--glow-size, 900px);
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow-tint, rgba(239,169,67,0.26)), transparent 65%);
  filter: blur(var(--glow-blur, 10px));
  opacity: var(--glow-opacity, 1);
  pointer-events: none;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}
