/* ============================================================================
   MC Waterslides — design system
   Sibling of MC3DPrint's machined-console theme, re-cut for water: deep
   blue-charcoal canvas, aqua primary accent (the water), warm copper
   secondary (the mod's copper+clay material identity), and a 16-dye ramp
   as the recurring motif (slide channels dye like concrete). Blocky small
   radii nod at Minecraft without going full pixel-art.
   ============================================================================ */

:root {
  /* surfaces */
  --bg:        #0a0e14;
  --bg-soft:   #0f141d;
  --panel:     #141b26;
  --panel-2:   #1a2230;
  --line:      #263140;
  --line-soft: #1f2836;

  /* ink */
  --ink:       #e8ecf2;
  --ink-soft:  #a8b2c2;
  --ink-faint: #6f7a8c;

  /* accents */
  --water:     #45c4ff;   /* aqua — primary (the water) */
  --water-hi:  #9fe0ff;
  --copper:    #e2915c;   /* copper — secondary (the material identity) */
  --copper-hi: #ffb37e;

  /* dye ramp (slide channels come in 16 colors; 8 shown as the motif) */
  --d1: #ff5d5d; --d2: #ff9a3c; --d3: #ffd24a; --d4: #7ed957;
  --d5: #45c4ff; --d6: #4a7dff; --d7: #b16dff; --d8: #ff7ab8;

  --radius:   10px;
  --radius-sm: 6px;
  --maxw:     1120px;
  --gutter:   clamp(1rem, 4vw, 2.5rem);

  --shadow:   0 10px 40px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.35);

  --font: "Outfit", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* cool water glow up top, warm copper glow opposite it */
  background-image:
    radial-gradient(900px 480px at 22% -8%, rgba(69, 196, 255, 0.10), transparent 60%),
    radial-gradient(700px 420px at 92% -6%, rgba(226, 145, 92, 0.08), transparent 55%);
  background-repeat: no-repeat;
}

h1, h2, h3, h4 { line-height: 1.15; font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); }
h3 { font-size: 1.25rem; }

a { color: var(--water-hi); text-decoration: none; }
a:hover { text-decoration: underline; }

p { color: var(--ink-soft); }

code, pre, kbd { font-family: var(--mono); }
code {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.4em;
  font-size: 0.88em;
  color: var(--copper-hi);
}
pre {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  overflow-x: auto;
}
pre code { background: none; border: none; padding: 0; color: var(--ink); }

kbd {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
  padding: 0.1em 0.45em;
  font-size: 0.82em;
}

/* ---- layout helpers ---- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(3rem, 8vw, 5.5rem); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--copper);
}
.lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 60ch; }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 0.8rem;
}
.wordmark {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 750; letter-spacing: -0.01em; color: var(--ink);
  font-size: 1.05rem;
}
.wordmark:hover { text-decoration: none; }
.wordmark .drop { color: var(--water); }
.nav-links { display: flex; gap: 1.4rem; align-items: center; font-size: 0.95rem; }
.nav-links a { color: var(--ink-soft); font-weight: 550; }
.nav-links a:hover { color: var(--water-hi); text-decoration: none; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font: inherit; font-weight: 600; font-size: 0.98rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--water); color: #04121c; }
.btn-primary:hover { background: var(--water-hi); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--water); color: var(--water-hi); }

/* ---- cards ---- */
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
}

/* ---- pill chips ---- */
.chip {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.82rem; font-weight: 700;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--water-hi);
}

/* ---- dye ramp motif (16 channel colors, 8 shown) ---- */
.dye-ramp { display: flex; gap: 4px; }
.dye-ramp span {
  flex: 1; height: 4px; border-radius: 999px;
  background: var(--dc, var(--ink-faint));
}
.dye-ramp span:nth-child(1) { --dc: var(--d1); }
.dye-ramp span:nth-child(2) { --dc: var(--d2); }
.dye-ramp span:nth-child(3) { --dc: var(--d3); }
.dye-ramp span:nth-child(4) { --dc: var(--d4); }
.dye-ramp span:nth-child(5) { --dc: var(--d5); }
.dye-ramp span:nth-child(6) { --dc: var(--d6); }
.dye-ramp span:nth-child(7) { --dc: var(--d7); }
.dye-ramp span:nth-child(8) { --dc: var(--d8); }

/* ---- footer ---- */
.footer {
  border-top: 1px solid var(--line-soft);
  padding-block: 2rem 2.5rem;
  font-size: 0.9rem;
}
.footer-inner {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  color: var(--ink-faint);
}
.footer a { color: var(--ink-soft); }

/* ---- utilities ---- */
.grid { display: grid; gap: 1.1rem; }
.muted { color: var(--ink-faint); }
.center { text-align: center; }
.small { font-size: 0.85rem; }
hr { border: none; border-top: 1px solid var(--line); margin-block: 2.5rem; }

:focus-visible { outline: 2px solid var(--water); outline-offset: 2px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
}