/* ==========================================================================
   ENERGENCIA — DESIGN TOKENS
   The brand book, made machine-readable. Every page reads from this file.
   Change a value here and the whole site updates.
   ========================================================================== */

/* Fonts (free, from Google Fonts). Loaded in each HTML <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=Jost:wght@400;500;600&family=Outfit:wght@300;400;500;600&family=DM+Mono:wght@400;500&display=swap" rel="stylesheet">
*/

:root {
  /* ---- Colour ---- */
  --white:  #FEFDFA;  /* Ground. Dominant, ~60% of every screen. */
  --ink:    #14110D;  /* Text and the mark. */
  --yellow: #FFD400;  /* Signal. The brand hit. Never for long text. */
  --klein:  #1400F0;  /* Anchor. Sits opposite yellow. Buttons, fields. */
  --pink:   #FB3F9C;  /* Spark. Sparing, one accent per screen. */
  --grey:   #8C8478;  /* Muted UI text, captions. */
  --line:   #E7E1D3;  /* Hairlines, borders. */

  /* ---- Type families ---- */
  --font-display: 'Jost', sans-serif;      /* Wordmark + headlines. CAPS only for the wordmark. */
  --font-body:    'Outfit', sans-serif;    /* Headings, body, UI. */
  --font-mono:    'DM Mono', monospace;    /* Labels, prices, nav meta, captions. */

  /* ---- Type scale (mobile-first; fluid where useful) ---- */
  --fs-hero:  clamp(2.6rem, 8vw, 5rem);    /* Hero headline (Outfit 600) */
  --fs-h1:    clamp(2rem, 5vw, 3.25rem);
  --fs-h2:    clamp(1.5rem, 3.5vw, 2.25rem);
  --fs-h3:    1.375rem;
  --fs-body:  1.0625rem;                   /* ~17px, Outfit 300/400 */
  --fs-small: 0.9375rem;
  --fs-label: 0.75rem;                     /* DM Mono, letter-spaced, uppercase */
  --lh-body:  1.55;
  --lh-tight: 1.08;
  --track-label: 0.16em;
  --track-wordmark: 0.06em;                /* wordmark letter-spacing */

  /* ---- Spacing ---- */
  --s-1: 0.5rem;  --s-2: 1rem;  --s-3: 1.5rem;  --s-4: 2.5rem;
  --s-5: 4rem;    --s-6: 6rem;  --s-section: clamp(4rem, 10vw, 8rem);
  --maxw: 1200px;                          /* content max width */
  --pad-x: clamp(1.25rem, 5vw, 5rem);      /* page side padding */

  /* ---- Shape ---- */
  --radius: 6px;
  --radius-lg: 10px;
  --border: 1px solid var(--line);
}

/* ==========================================================================
   BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-body); font-weight: 600; line-height: var(--lh-tight); letter-spacing: -0.01em; margin: 0; }
p { margin: 0 0 var(--s-2); max-width: 62ch; }
a { color: inherit; }
img { max-width: 100%; display: block; }

/* Layout helpers */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad-x); }
.section { padding-block: var(--s-section); }

/* ---- Labels / meta (DM Mono) ---- */
.label {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--grey);
}

/* ==========================================================================
   WORDMARK & LOCKUP
   Rule: wordmark cap height = 1/3 of the mark height. Clear space = 1 cap height.
   ========================================================================== */
.wordmark {
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-wordmark);
  color: var(--ink);
  line-height: 0.9;
}
/* Lockups: keep the mark ~3x the wordmark cap height.
   Practical starting sizes (tune per placement):
   - inline:  mark height ~2x cap  -> e.g. mark 48px, wordmark 1.5rem
   - stacked: mark height ~3x cap  -> e.g. mark 96px, wordmark 2rem      */
.lockup { display: flex; align-items: center; gap: 0.7em; text-decoration: none; }
.lockup--stacked { flex-direction: column; align-items: center; gap: 0.5em; }
.lockup--offset  { flex-direction: column; align-items: flex-start; gap: 0.5em; }
.lockup img { height: auto; }

/* ==========================================================================
   BUTTONS  (from the brand book "in use" page)
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85em 1.4em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform .12s ease, opacity .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--klein);  color: var(--white); }  /* default CTA */
.btn--signal  { background: var(--ink);    color: var(--yellow); }
.btn--ghost   { background: transparent;   color: var(--ink); border-color: var(--ink); }
.btn--spark   { background: var(--pink);   color: var(--white); }  /* use sparingly */

/* ==========================================================================
   READABILITY GUARDRAILS (do not break these)
   - Long text is only ever --ink on --white.
   - On --yellow, text is --ink, never white.
   - Never set body copy on --klein or --pink (headings/short labels only).
   - One accent colour per screen.
   ========================================================================== */
