/* ============================================
   themes.css — 계절별 테마 + 디자인 토큰
   ============================================ */

:root {
  /* 공통 디자인 토큰 */
  --font-primary: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 50%;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  --tab-height: 64px;
  --header-height: 56px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ── 봄 (Spring) ── */
[data-season="spring"] {
  --color-bg: #fef7f9;
  --color-bg-card: #ffffff;
  --color-primary: #e8739a;
  --color-primary-light: #fce4ec;
  --color-primary-dark: #c2185b;
  --color-secondary: #81c784;
  --color-accent: #f8bbd0;
  --color-text: #3e2723;
  --color-text-light: #8d6e63;
  --color-text-muted: #bcaaa4;
  --color-border: #f3e5f5;
  --color-splash-from: #fce4ec;
  --color-splash-to: #e8f5e9;
  --color-particle: #f48fb1;
}

/* ── 여름 (Summer) — 뜨거운 햇빛 + 생명력 넘치는 녹음 ── */
[data-season="summer"] {
  --color-bg: #f1f8e9;
  --color-bg-card: #ffffff;
  --color-primary: #f57c00;
  --color-primary-light: #fff8e1;
  --color-primary-dark: #e65100;
  --color-secondary: #43a047;
  --color-accent: #aed581;
  --color-text: #33691e;
  --color-text-light: #558b2f;
  --color-text-muted: #8bc34a;
  --color-border: #dcedc8;
  --color-splash-from: #fff9c4;
  --color-splash-to: #c8e6c9;
  --color-particle: #66bb6a;
}

/* ── 가을 (Autumn) ── */
[data-season="autumn"] {
  --color-bg: #fdf6ee;
  --color-bg-card: #ffffff;
  --color-primary: #e65100;
  --color-primary-light: #fff3e0;
  --color-primary-dark: #bf360c;
  --color-secondary: #ff8a65;
  --color-accent: #ffcc80;
  --color-text: #3e2723;
  --color-text-light: #795548;
  --color-text-muted: #a1887f;
  --color-border: #fbe9e7;
  --color-splash-from: #fff3e0;
  --color-splash-to: #fbe9e7;
  --color-particle: #ffab40;
}

/* ── 겨울 (Winter) ── */
[data-season="winter"] {
  --color-bg: #f5f0fa;
  --color-bg-card: #ffffff;
  --color-primary: #7e57c2;
  --color-primary-light: #ede7f6;
  --color-primary-dark: #4527a0;
  --color-secondary: #b39ddb;
  --color-accent: #ce93d8;
  --color-text: #311b92;
  --color-text-light: #6746a8;
  --color-text-muted: #9fa8da;
  --color-border: #e8eaf6;
  --color-splash-from: #ede7f6;
  --color-splash-to: #e8eaf6;
  --color-particle: #b39ddb;
}