/* ============================================================
   SHINWA MEMBER OS  ―  Design System / Tokens  (Ver.2.0 Premium)
   上質・安心・清潔・分かりやすい / 390px基準 / Light + Dark
   ============================================================ */

:root {
  /* ---- Brand (constant across themes) ---- */
  --primary:          #FB8B1E;   /* 主役: 明るいオレンジ */
  --primary-deep:     #E8700B;
  --primary-soft:     #FFF0DE;
  --brand-green-deep: #0AA152;   /* お得・お金 */
  --brand-green:      #16CE72;
  --blue:             #2B8FFF;   /* 補助: 明るいブルー（管理・情報） */
  --blue-deep:        #1E72E0;
  --blue-soft:        #E7F1FF;
  --brand-navy:       #2A3140;   /* 重いネイビーは廃し中立ダークへ格下げ */
  --brand-gold:       #C9A24D;   /* ゴールド会員ランクの意味色のみ */
  --brand-gold-lt:    #E4C578;
  --brand-orange:     #FB8B1E;
  --ink:              #2A303C;
  --brand-error:      #E5484D;

  --grad-green:   linear-gradient(135deg, #16CE72 0%, #0A9E54 100%);
  --grad-primary: linear-gradient(135deg, #FF9F35 0%, #F0730A 100%);
  --grad-blue:    linear-gradient(135deg, #46A2FF 0%, #1E72E0 100%);
  --grad-hero:    linear-gradient(150deg, #FFA845 0%, #F0730A 55%, #DA6206 100%);
  --grad-gold:    linear-gradient(135deg, #E9CE84 0%, #C9A24D 52%, #A5822F 100%);
  --grad-navy:    var(--grad-blue);   /* 旧navyグラデ→ブルー（管理系） */
  --grad-member:  var(--grad-hero);   /* ヒーローカード→オレンジ */

  /* ---- Semantic surfaces / text (LIGHT) ---- */
  --bg:          #FBFCFE;   /* app screen（ほぼ純白で明るく） */
  --surface:     #FFFFFF;   /* cards */
  --surface-2:   #F3F5F9;   /* subtle fills */
  --surface-3:   #EDF0F5;   /* inputs / chips resting */
  --border:      #EBEEF3;   /* hairlines（薄く） */
  --border-2:    #F1F3F7;
  --text:        #14181F;
  --text-2:      #626A79;
  --text-3:      #A0A7B4;
  --nav-bg:      rgba(255,255,255,0.82);
  --on-green-soft:#E9F8F0;
  --green-soft:  #E9F8F0;
  --gold-soft:   #F6EFDD;
  --hot-soft:    #FFEEDC;
  --hot-ink:     #C15C10;
  --err-soft:    #FDEBEC;
  --scrim:       rgba(16,20,32,0.42);

  /* ---- Elevation (Apple-like: soft, layered, low opacity) ---- */
  --sh-xs:   0 1px 2px rgba(16,24,40,0.05);
  --sh-sm:   0 1px 3px rgba(16,24,40,0.06), 0 1px 2px rgba(16,24,40,0.04);
  --sh-card: 0 1px 2px rgba(16,24,40,0.04), 0 6px 20px rgba(16,24,40,0.06);
  --sh-md:   0 4px 12px rgba(16,24,40,0.08), 0 2px 4px rgba(16,24,40,0.04);
  --sh-nav:  0 -6px 24px rgba(16,24,40,0.06);
  --sh-modal:0 20px 48px rgba(16,24,40,0.18);
  --sh-gold: 0 8px 22px rgba(201,162,77,0.26);
  --sh-green:0 8px 20px rgba(10,143,77,0.24);
  --sh-primary:0 8px 20px rgba(240,115,10,0.30);
  --sh-blue: 0 8px 20px rgba(30,114,224,0.26);
  --ring:    0 0 0 3px rgba(18,197,107,0.30);

  /* ---- Typography ---- */
  --font: "Noto Sans JP", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --num:  "SF Pro Display", system-ui, "Noto Sans JP", sans-serif;
  --fs-11: 11px; --fs-12: 12px; --fs-13: 13px; --fs-14: 14px;
  --fs-15: 15px; --fs-16: 16px; --fs-18: 18px; --fs-20: 20px;
  --fs-24: 24px; --fs-28: 28px; --fs-34: 34px; --fs-44: 44px;
  --lh-tight: 1.32; --lh-base: 1.6;

  /* ---- Spacing (4/8 grid) ---- */
  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px;
  --s5: 20px; --s6: 24px; --s8: 32px; --s10: 40px;
  --pad: 20px;                 /* screen side padding */

  /* ---- Radius ---- */
  --r-xs: 8px; --r-sm: 10px; --r-md: 14px; --r-card: 18px; --r-lg: 22px; --r-pill: 999px;

  /* ---- Motion (150–220ms, ease-out) ---- */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-soft: cubic-bezier(0.33, 0, 0.2, 1);
  --dur-1: 140ms; --dur-2: 180ms; --dur-3: 220ms;

  /* ---- Frame ---- */
  --app-w: 390px; --nav-h: 82px;

  color-scheme: light;
}

/* ============ DARK THEME ============ */
@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #0D1220;
    --surface:   #161D2E;
    --surface-2: #1C2437;
    --surface-3: #232C42;
    --border:    #2A3247;
    --border-2:  #222B3E;
    --text:      #EEF1F6;
    --text-2:    #A3ABBC;
    --text-3:    #6D7690;
    --nav-bg:    rgba(18,24,38,0.82);
    --green-soft:#12271E;
    --primary-soft:#3A2712;
    --blue-soft: #10233C;
    --gold-soft: #2A2415;
    --hot-soft:  #2E1F12;
    --hot-ink:   #F0A868;
    --err-soft:  #2C1618;
    --scrim:     rgba(4,7,14,0.6);
    --sh-xs:   0 1px 2px rgba(0,0,0,0.4);
    --sh-sm:   0 1px 3px rgba(0,0,0,0.45);
    --sh-card: 0 1px 2px rgba(0,0,0,0.35), 0 8px 24px rgba(0,0,0,0.4);
    --sh-md:   0 6px 18px rgba(0,0,0,0.5);
    --sh-nav:  0 -6px 24px rgba(0,0,0,0.4);
    --sh-modal:0 20px 52px rgba(0,0,0,0.6);
    --ring:    0 0 0 3px rgba(18,197,107,0.40);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:#0D1220; --surface:#161D2E; --surface-2:#1C2437; --surface-3:#232C42;
  --border:#2A3247; --border-2:#222B3E; --text:#EEF1F6; --text-2:#A3ABBC; --text-3:#6D7690;
  --nav-bg:rgba(18,24,38,0.82); --green-soft:#12271E; --primary-soft:#3A2712; --blue-soft:#10233C; --gold-soft:#2A2415; --hot-soft:#2E1F12;
  --hot-ink:#F0A868; --err-soft:#2C1618; --scrim:rgba(4,7,14,0.6);
  --sh-xs:0 1px 2px rgba(0,0,0,0.4); --sh-sm:0 1px 3px rgba(0,0,0,0.45);
  --sh-card:0 1px 2px rgba(0,0,0,0.35), 0 8px 24px rgba(0,0,0,0.4); --sh-md:0 6px 18px rgba(0,0,0,0.5);
  --sh-nav:0 -6px 24px rgba(0,0,0,0.4); --sh-modal:0 20px 52px rgba(0,0,0,0.6);
  --ring:0 0 0 3px rgba(18,197,107,0.40); color-scheme: dark;
}
:root[data-theme="light"] {
  --bg:#F4F6F9; --surface:#FFFFFF; --surface-2:#F1F3F7; --surface-3:#EBEEF3;
  --border:#E4E7ED; --border-2:#EEF0F4; --text:#141824; --text-2:#5A6172; --text-3:#98A0AF;
  --nav-bg:rgba(255,255,255,0.82); --green-soft:#E9F8F0; --primary-soft:#FFF0DE; --blue-soft:#E7F1FF; --gold-soft:#F6EFDD; --hot-soft:#FFEEDC;
  --hot-ink:#C15C10; --err-soft:#FDEBEC; --scrim:rgba(16,20,32,0.42);
  --sh-xs:0 1px 2px rgba(16,24,40,0.05); --sh-sm:0 1px 3px rgba(16,24,40,0.06),0 1px 2px rgba(16,24,40,0.04);
  --sh-card:0 1px 2px rgba(16,24,40,0.04),0 6px 20px rgba(16,24,40,0.06); --sh-md:0 4px 12px rgba(16,24,40,0.08),0 2px 4px rgba(16,24,40,0.04);
  --sh-nav:0 -6px 24px rgba(16,24,40,0.06); --sh-modal:0 20px 48px rgba(16,24,40,0.18);
  --ring:0 0 0 3px rgba(18,197,107,0.30); color-scheme: light;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  font-size: var(--fs-16);
  font-weight: 500;
  line-height: var(--lh-base);
  color: var(--text);
  background: #0B0F1A;
  letter-spacing: .002em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: rgba(18,197,107,0.24); }
.tnum { font-variant-numeric: tabular-nums; }
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}