/* ==========================================================================
   Matikka-Ahmatti Design System
   Jaetut CSS-variabelit + body base styles.
   Linkki staattisilta sivuilta: <link rel="stylesheet" href="/design-system.css">
   Import React:issa: import '@styles/design-system.css'
   ========================================================================== */

:root, [data-theme="light"] {
  --bg: #F3EEE2;
  --bg-alt: rgba(255,255,255,.45);
  --card: rgba(255,255,255,.55);
  --ink: #16161C;
  --ink-soft: #3A3B44;
  --ink-muted: #63646C;
  --border: rgba(255,255,255,.65);
  --border-strong: rgba(255,255,255,.95);
  --gold: #F7C948;
  --gold-soft: rgba(247,201,72,.42);
  --gold-deep: #B88712;
  --mint: #00D9A3;
  --mint-soft: rgba(0,217,163,.28);
  --mint-deep: #078A67;
  --coral: #FF6B6B;
  --coral-soft: rgba(255,107,107,.24);
  --sky: #6BB6FF;
  --sky-soft: rgba(107,182,255,.26);
  --violet: #A574F6;
  --violet-soft: rgba(165,116,246,.26);
  --welcome-bg: linear-gradient(135deg, rgba(247,201,72,.48) 0%, rgba(255,255,255,.28) 70%, rgba(255,255,255,.18) 100%);
  --welcome-border: rgba(255,255,255,.85);
  --welcome-dot: rgba(247,201,72,.35);
  --cta-bg: rgba(22,22,28,.92);
  --cta-fg: #FFFDF5;
  --cta-shadow: 0 6px 20px rgba(22,22,28,.25);
  --bar-track: rgba(22,22,28,.10);
  --shadow-sm: 0 4px 14px rgba(22,22,28,.06), 0 1px 3px rgba(22,22,28,.04);
  --shadow-md: 0 14px 38px rgba(22,22,28,.10), 0 4px 12px rgba(22,22,28,.05);
  --shadow-gold: 0 10px 32px rgba(247,201,72,.32);
  --shadow-mint: 0 10px 32px rgba(0,217,163,.28);
  --shadow-coral: 0 10px 32px rgba(255,107,107,.26);
  --glass-blur: saturate(180%) blur(28px);
  --glass-edge: inset 0 1px 0 rgba(255,255,255,.9), inset 0 0 0 1px rgba(255,255,255,.35);
  --aurora-1: radial-gradient(60% 60% at 12% 12%, rgba(247,201,72,.7) 0%, rgba(247,201,72,0) 60%);
  --aurora-2: radial-gradient(50% 50% at 85% 22%, rgba(0,217,163,.5) 0%, rgba(0,217,163,0) 60%);
  --aurora-3: radial-gradient(55% 55% at 72% 88%, rgba(165,116,246,.42) 0%, rgba(165,116,246,0) 60%);
  --aurora-4: radial-gradient(45% 45% at 8% 78%, rgba(255,142,212,.45) 0%, rgba(255,142,212,0) 60%);
  --radius: 30px;
  --radius-sm: 22px;
  --radius-lg: 40px;
  --radius-pill: 999px;
  --radius-ico: 18px;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro", "Inter", system-ui, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro", "Inter", system-ui, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", ui-monospace, monospace;
  --tr-fast: 160ms cubic-bezier(.2,.8,.2,1);
  --tr-med:  280ms cubic-bezier(.2,.8,.2,1);
}

[data-theme="dark"] {
  --bg: #07070B;
  --bg-alt: rgba(255,255,255,.04);
  --card: rgba(255,255,255,.05);
  --ink: #F4F1FA;
  --ink-soft: #C4C2D0;
  --ink-muted: #8A8898;
  --border: rgba(255,255,255,.10);
  --border-strong: rgba(255,255,255,.18);
  --gold: #FFD45E;
  --gold-soft: rgba(255,212,94,.18);
  --gold-deep: #FFC02E;
  --mint: #3BE8B0;
  --mint-soft: rgba(59,232,176,.18);
  --mint-deep: #00D9A3;
  --coral: #FF8787;
  --coral-soft: rgba(255,135,135,.18);
  --sky: #8CC6FF;
  --sky-soft: rgba(140,198,255,.18);
  --violet: #C4A0FF;
  --violet-soft: rgba(196,160,255,.18);
  --welcome-bg: linear-gradient(135deg, rgba(255,212,94,.18) 0%, rgba(59,232,176,.10) 60%, rgba(255,255,255,.03) 100%);
  --welcome-border: rgba(255,255,255,.14);
  --welcome-dot: rgba(255,212,94,.22);
  --cta-bg: linear-gradient(135deg, #FFE49F 0%, #E6B23A 60%, #C9911A 100%);
  --cta-fg: #2A1F00;
  --cta-shadow: 0 10px 32px rgba(255,212,94,.35), inset 0 1px 0 rgba(255,255,255,.45), inset 0 -1px 0 rgba(92,60,0,.25);
  --bar-track: rgba(255,255,255,.08);
  --shadow-sm: 0 4px 14px rgba(0,0,0,.45), 0 1px 3px rgba(0,0,0,.35);
  --shadow-md: 0 18px 48px rgba(0,0,0,.55), 0 6px 16px rgba(0,0,0,.35);
  --shadow-gold: 0 12px 40px rgba(255,212,94,.28);
  --shadow-mint: 0 12px 40px rgba(59,232,176,.24);
  --shadow-coral: 0 12px 40px rgba(255,135,135,.24);
  --glass-blur: saturate(200%) blur(30px);
  --glass-edge: inset 0 1px 0 rgba(255,255,255,.15), inset 0 0 0 1px rgba(255,255,255,.06);
  --aurora-1: radial-gradient(55% 55% at 12% 14%, rgba(255,212,94,.42) 0%, rgba(255,212,94,0) 60%);
  --aurora-2: radial-gradient(50% 50% at 85% 20%, rgba(59,232,176,.35) 0%, rgba(59,232,176,0) 60%);
  --aurora-3: radial-gradient(58% 58% at 74% 90%, rgba(196,160,255,.38) 0%, rgba(196,160,255,0) 60%);
  --aurora-4: radial-gradient(45% 45% at 6% 80%, rgba(255,135,135,.30) 0%, rgba(255,135,135,0) 60%);
}

/* Theme transitions */
body {
  transition: background var(--tr-med), background-color var(--tr-med), color var(--tr-med);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Aurora background (used on index; static pages opt out with body.no-aurora). */
body::before {
  content: "";
  position: fixed;
  inset: -10%;
  background:
    var(--aurora-1),
    var(--aurora-2),
    var(--aurora-3),
    var(--aurora-4);
  z-index: -1;
  pointer-events: none;
  animation: auroraDrift 24s ease-in-out infinite alternate;
}
body.no-aurora::before { display: none; }

@keyframes auroraDrift {
  0%   { transform: translate(0,0) scale(1); }
  50%  { transform: translate(2%,-1%) scale(1.04); }
  100% { transform: translate(-1.5%,1.5%) scale(1.02); }
}

@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; }
}

/* ==========================================================================
   Hero-eyebrow-pilleri + DemoCard — dark-mode-tietoisia luokkia
   (React-komponentit käyttävät näitä sen sijaan että kovakoodaisivat värit)
   ========================================================================== */

.hero-eyebrow {
  display: inline-block;
  padding: 6px 12px;
  background: var(--sky-soft);
  color: #123A72;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 700;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}
[data-theme="dark"] .hero-eyebrow {
  color: #B9DDFF;
  background: rgba(140,198,255,.18);
}

/* ============================================================
   HERO (index.astro React-Hero-komponentti)
   ============================================================ */
.hero-grid {
  min-height: 100vh;
  padding: 80px 40px 40px;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
}
/* Oikean sarakkeen pino: mörkö ↓ demo-kortti.
   `align-self: start` → pino ankkuroituu sarakkeen yläosaan eikä kellu keskellä,
   jolloin pinon yläpuolelle ei jää isoa tyhjää väliä. */
.hero-right {
  align-self: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
}
.hero-morko {
  width: clamp(280px, 32vw, 420px);
  aspect-ratio: 1;
  pointer-events: none;
  filter: drop-shadow(0 20px 40px rgba(31,168,118,.35));
  /* Pieni gap demo-kortin yläpuolelle — mörkö on kortin päällä mutta ei kiinni */
  margin-bottom: 16px;
  z-index: 2;
}
.hero-right .demo-card {
  width: 100%;
  max-width: 460px;
}
.demo-problem {
  font-size: clamp(36px, 8vw, 54px);
  font-weight: 800;
  text-align: center;
  margin: 16px 0;
  letter-spacing: -0.02em;
}

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    padding: 90px 20px 32px;
    gap: 32px;
    min-height: auto;
  }
  /* Mobiili: pidä mörkö osana oikeaa saraketta mutta pienempänä */
  .hero-morko {
    width: clamp(140px, 36vw, 220px);
    margin-bottom: 12px;
  }
  .demo-card {
    padding: 18px;
  }
  .demo-option {
    padding: 12px;
    font-size: 18px;
  }
}

.demo-card {
  background: rgba(255,255,255,.7);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-strong);
}
[data-theme="dark"] .demo-card {
  background: rgba(30,30,38,.7);
  border-color: rgba(255,255,255,.12);
}

.demo-option {
  padding: 14px;
  background: rgba(22,22,28,.06);
  color: var(--ink);
  border-radius: 14px;
  text-align: center;
  font-weight: 700;
  font-size: 20px;
  cursor: pointer;
}
[data-theme="dark"] .demo-option {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.06);
}
.demo-option.correct {
  background: linear-gradient(135deg, #9DF2D7, #2FCB96);
  color: #0B5A42;
  box-shadow: inset 0 0 0 2px #2FCB96;
}
[data-theme="dark"] .demo-option.correct {
  background: linear-gradient(135deg, #2FCB96, #0B5A42);
  color: #E0FFF0;
  box-shadow: inset 0 0 0 2px #3BE8B0;
}