/* ============================================================
   Persian 365-Day Activity Tracker — style
   Dark + Light themes · semantic tokens · mobile-first RTL
   ============================================================ */

/* ---------- theme tokens ---------- */
:root {
  color-scheme: dark;
  /* dark (default) */
  --bg: #08090C;
  --bg-glow: #0d0f14;
  --card: #111318;
  --card-2: #181B21;
  --card-3: #15181e;
  --line: rgba(255,255,255,.07);
  --line-strong: rgba(255,255,255,.16);
  --text: #F5F5F5;
  --muted: #8B909A;
  --muted-dim: rgba(139,144,154,.55);
  --green: #5CFF32;
  --focus-color: #81C784;
  --focus-max-alpha: 0.45;                 /* soft translucent green cap */
  --focus-glow-color: #5CFF32;             /* dark mode glow = green     */
  --focus-glow-alpha: 0.18;                /* subtle, controlled         */
  --green-strong: #8FFF6B;
  --green-deep: #20B83A;
  --green-dim: rgba(92,255,50,.13);
  --green-faint: rgba(92,255,50,.08);
  --green-border: rgba(92,255,50,.42);
  --red: #F87171;
  --red-dim: rgba(248,113,113,.13);
  --accent: var(--green);
  /* component tokens (dark values) */
  --circle-bg: rgba(255,255,255,.06);
  --circle-border: rgba(255,255,255,.16);
  --circle-shadow-hover: rgba(92,255,50,.20);
  --done-text: #0A2A08;
  --failed-text: #2b0808;
  --track-ring: rgba(255,255,255,.08);
  --glass-bg: linear-gradient(160deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  --inset-bg: rgba(255,255,255,.04);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.5);
  --shadow-sheet: 0 -20px 60px rgba(0,0,0,.55);
  --shadow-toast: 0 10px 30px rgba(0,0,0,.5);
  --backdrop-bg: rgba(0,0,0,.55);
  --modal-bg: rgba(0,0,0,.6);
  --nav-bg: rgba(17,19,24,.85);
  --desktop-frame: rgba(13,15,20,.6);
  --desktop-frame-shadow: 0 40px 120px rgba(0,0,0,.6);
  --input-border: rgba(255,255,255,.12);
  --input-border-hover: rgba(255,255,255,.2);
  --checkbox-border: rgba(255,255,255,.22);
  --hover-wash: rgba(255,255,255,.06);
  --grab-bg: rgba(255,255,255,.16);
  --toast-bg: #1d2027;
  --today-ring-a: rgba(92,255,50,.14);
  --today-ring-b: rgba(92,255,50,.28);
  --today-glow: rgba(92,255,50,.30);
  --focus-ring: rgba(92,255,50,.32);
  --progress-track: rgba(255,255,255,.06);
  --scroll-thumb: transparent;
  --scroll-thumb-hover: transparent;
  /* header (dark) */
  --header-card-bg: rgba(20,22,27,.72);
  --header-card-border: rgba(255,255,255,.08);
  --header-card-shadow: 0 8px 28px rgba(0,0,0,.28);
  --hc-btn-bg: rgba(255,255,255,.05);
  --hc-btn-border: rgba(255,255,255,.09);
  --hc-date-bg: rgba(255,255,255,.035);
  --hc-date-border: rgba(255,255,255,.08);
  --hc-date-shadow: 0 2px 8px rgba(0,0,0,.18);
  --accent-bar-a: var(--green);
  --accent-bar-b: var(--green-deep);
  --accent-glow-soft: rgba(92,255,50,.20);

  --radius: 20px;
  --row-h: 76px;
  --header-h: 128px;
  --nav-h: 62px;
  --ease: cubic-bezier(.22,.9,.3,1);
}

/* ---------- light theme — warm premium paper ---------- */
html[data-theme="light"] {
  color-scheme: light;
  --bg: #F7F4EA;
  --bg-glow: #FCFAF3;
  --card: #FCFAF3;
  --card-2: #F1EEE3;
  --card-3: #FBF8EF;
  --line: rgba(80,72,50,.12);
  --focus-color: #81C784;                  /* same soft green fill       */
  --focus-max-alpha: 0.45;
  --focus-glow-color: #FFD54F;             /* LIGHT MODE glow = yellow   */
  --focus-glow-alpha: 0.38;                /* gentle warm halo           */
  --line-strong: rgba(80,72,50,.26);
  --text: #24251F;
  --muted: #65665D;
  --muted-dim: rgba(101,102,93,.6);
  --green: #20B83A;
  --green-strong: #178229;
  --green-dim: rgba(32,184,58,.12);
  --green-faint: rgba(32,184,58,.08);
  --green-border: rgba(32,184,58,.38);
  --red: #D85A55;
  --red-dim: rgba(216,90,85,.12);
  /* component tokens (light values) */
  --circle-bg: #FCFAF3;
  --circle-border: #E3DFD3;
  --circle-shadow-hover: rgba(32,184,58,.24);
  --done-text: #FFFDF7;
  --failed-text: #FFFDF7;
  --track-ring: rgba(80,72,50,.10);
  --glass-bg: linear-gradient(160deg, rgba(255,255,255,.55), rgba(255,253,247,.35));
  --inset-bg: rgba(255,255,255,.5);
  --shadow-lg: 0 12px 32px rgba(50,45,30,.10);
  --shadow-sheet: 0 -12px 36px rgba(50,45,30,.12);
  --shadow-toast: 0 8px 24px rgba(50,45,30,.14);
  --backdrop-bg: rgba(40,35,25,.28);
  --modal-bg: rgba(40,35,25,.30);
  --nav-bg: rgba(252,250,243,.88);
  --desktop-frame: rgba(255,255,255,.45);
  --desktop-frame-shadow: 0 32px 90px rgba(50,45,30,.14);
  --input-border: #DDD8CB;
  --input-border-hover: #C9C3B2;
  --checkbox-border: #D5D1C5;
  --hover-wash: rgba(80,72,50,.06);
  --grab-bg: rgba(80,72,50,.22);
  --toast-bg: #30312A;
  --today-ring-a: rgba(32,184,58,.16);
  --today-ring-b: rgba(32,184,58,.28);
  --today-glow: rgba(32,184,58,.22);
  --focus-ring: rgba(32,184,58,.35);
  --progress-track: rgba(80,72,50,.08);
  --scroll-thumb: #D5D1C5;
  --scroll-thumb-hover: #BDB8AA;
  /* header (light — warm paper + glass) */
  --header-card-bg: rgba(255,253,247,.72);
  --header-card-border: rgba(130,110,70,.12);
  --header-card-shadow: 0 8px 28px rgba(70,55,25,.08);
  --hc-btn-bg: rgba(255,255,255,.55);
  --hc-btn-border: rgba(120,100,60,.14);
  --hc-date-bg: rgba(255,255,255,.55);
  --hc-date-border: rgba(120,100,60,.12);
  --hc-date-shadow: 0 2px 8px rgba(70,55,25,.07);
  --accent-bar-a: var(--green);
  --accent-bar-b: var(--green-strong);
  --accent-glow-soft: rgba(32,184,58,.25);
}

/* ---------- fonts (local, no external CDN) ---------- */
@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Regular.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Medium.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-SemiBold.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Bold.woff2') format('woff2');
  font-weight: 700 800; font-style: normal; font-display: swap;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { height: 100%; background: var(--bg); }
body {
  min-height: 100%;
  background: radial-gradient(1200px 800px at 50% -10%, var(--bg-glow) 0%, var(--bg) 55%);
  color: var(--text);
  font-family: 'Vazirmatn', system-ui, sans-serif;
  overscroll-behavior-y: none;
  -webkit-font-smoothing: antialiased;
}
/* smooth theme switch — scoped to theme-carrying surfaces only.
   (Universal transitions on hundreds of nodes make every repaint
   expensive; tokens on :root already cascade instantly.)           */
body, .glass, .glass-inset, .sheet, .modal-card, .bottom-nav,
.today-strip, .header-card {
  transition: background-color .28s ease, background .28s ease,
              border-color .28s ease, box-shadow .28s ease, color .28s ease;
}
button { font-family: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, select { font-family: inherit; color: var(--text); }
svg { display: block; }

/* ---------- generic ---------- */
.screen[hidden], .sheet[hidden], .modal[hidden], .backdrop[hidden], .toast[hidden] {
  display: none !important;
}
.screen[hidden] { display: none !important; }
.center-screen {
  min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: 24px;
}
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--line);
  /* backdrop-filter only on static cards (empty/setup/modal) —
     never on scroll-driven or frequently repainted surfaces */
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  contain: layout style;
}
.glass-inset {
  background: var(--inset-bg);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 14px; font-size: .95rem; font-weight: 600;
  background: var(--card-2); border: 1px solid var(--line);
  transition: transform .15s var(--ease), background .2s, opacity .2s;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--green); border-color: transparent; color: var(--done-text); }
.btn-danger { background: var(--red); border-color: transparent; color: var(--done-text); }
.btn-lg { width: 100%; padding: 16px; font-size: 1.05rem; border-radius: 16px; }
.btn svg { width: 19px; height: 19px; }

.icon-btn {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 13px; background: var(--card-2); border: 1px solid var(--line);
  transition: transform .15s var(--ease), background .2s;
}
.icon-btn:active { transform: scale(.92); }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn.ghost { background: transparent; border-color: transparent; }

/* ---------- empty state ---------- */
.empty-card { max-width: 420px; width: 100%; padding: 44px 32px; text-align: center; }
.empty-ring { width: 130px; height: 130px; margin: 0 auto 26px; }
.ring-track { fill: none; stroke: var(--track-ring); stroke-width: 6; stroke-linecap: round;
  stroke-dasharray: 245 314; transform: rotate(-90deg); transform-origin: center; }
.ring-fill { fill: none; stroke: url(#g) , var(--green); stroke-width: 6; stroke-linecap: round;
  stroke-dasharray: 69 314; transform: rotate(-90deg); transform-origin: center; filter: drop-shadow(0 0 10px var(--circle-shadow-hover)); }
.empty-card h2 { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; }
.empty-card p { color: var(--muted); font-size: .9rem; line-height: 1.9; margin-bottom: 28px; }

/* ---------- setup ---------- */
.setup-card { max-width: 430px; width: 100%; padding: 24px; }
.setup-head { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.setup-head h2 { font-size: 1.15rem; font-weight: 700; flex: 1; }
.field-group { margin-bottom: 18px; }
.field-label { display: block; font-size: .82rem; font-weight: 600; color: var(--muted); margin-bottom: 8px; }
/* modern text input */
.text-input {
  width: 100%;
  background: var(--card-2);
  border: 1.5px solid var(--input-border);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 1rem; font-weight: 500;
  caret-color: var(--green);
  outline: none;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.text-input::placeholder { color: var(--muted-dim); }
.text-input:hover { border-color: var(--input-border-hover); }
.text-input:focus {
  border-color: var(--green);
  background: var(--card-3);
  box-shadow: 0 0 0 4px var(--green-faint);
}
.date-selects { display: flex; gap: 8px; direction: rtl; }
.date-selects select {
  flex: 1; appearance: none; -webkit-appearance: none;
  background: var(--card-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2365665D' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat left 12px center;
  border: 1px solid var(--input-border); border-radius: 12px;
  padding: 11px 12px 11px 30px; font-size: .95rem;
}
.preset-row { display: flex; gap: 8px; margin-bottom: 18px; }
.chip {
  flex: 1; padding: 9px 4px; border-radius: 999px; font-size: .85rem; font-weight: 600;
  background: var(--card-2); border: 1px solid var(--line); color: var(--muted);
  transition: all .2s var(--ease);
}
.chip.active { background: var(--green-dim); border-color: var(--green-border); color: var(--green); }
.range-summary { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; margin-bottom: 18px; }
.range-summary span { color: var(--muted); font-size: .88rem; }
.range-summary strong { font-size: 1.15rem; font-weight: 800; }
.form-error { color: var(--red); font-size: .83rem; margin-bottom: 14px; text-align: center; }

/* ---------- main layout (mobile-first column) ---------- */
#mainScreen {
  max-width: 520px; margin: 0 auto; min-height: 100dvh;
  display: grid; grid-template-rows: auto 1fr auto auto;
  height: 100dvh;
}
@media (min-width: 900px) {
  #mainScreen { height: 100dvh; padding-bottom: 0; }
  .bottom-nav { position: static; order: 5; }
}

/* header — Design 3: glass / modern / premium */
.app-header { padding: calc(env(safe-area-inset-top, 0px) + 12px) 14px 10px; }
.header-card {
  background: var(--header-card-bg);
  border: 1px solid var(--header-card-border);
  backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
  border-radius: 24px;
  box-shadow: var(--header-card-shadow);
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 13px;
}
.hc-row1 { display: flex; align-items: center; gap: 12px; }
.hc-btn {
  width: 48px; height: 48px; flex-shrink: 0;
  display: grid; place-items: center; border-radius: 15px;
  background: var(--hc-btn-bg); border: 1px solid var(--hc-btn-border);
  color: var(--text);
  transition: transform .15s var(--ease), background .2s;
}
.hc-btn:active { transform: scale(.94); }
.hc-btn svg { width: 20px; height: 20px; }
.hc-brand { flex: 1; min-width: 0; }
.hc-brand h1 { font-size: 1.42rem; font-weight: 800; letter-spacing: -.01em; line-height: 1.35; }
.hc-sub { color: var(--muted); font-size: .78rem; font-weight: 500; margin-top: 1px; }
.hc-date {
  flex-shrink: 0; display: flex; flex-direction: column; align-items: center; gap: 2px;
  background: var(--hc-date-bg);
  border: 1px solid var(--hc-date-border);
  border-radius: 16px;
  box-shadow: var(--hc-date-shadow);
  padding: 8px 13px;
}
.hcd-top { display: inline-flex; align-items: center; gap: 6px; }
.hcd-top svg { width: 14px; height: 14px; color: var(--muted); }
.hcd-top b { font-size: .82rem; font-weight: 700; white-space: nowrap; }
.hcd-week { font-size: .68rem; color: var(--muted); font-weight: 500; }

.hc-row2 { display: flex; align-items: center; gap: 14px; }
.hc-progress { flex: 1; min-width: 0; }
.hp-meta { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.hp-meta span:first-child { font-size: .84rem; font-weight: 700; color: var(--text); }
.hp-pct { font-size: .74rem; font-weight: 600; }
.hp-pct #hdPercent { color: var(--accent-bar-a); font-weight: 800; font-size: .9rem; }
.hp-track { height: 5px; border-radius: 999px; background: var(--progress-track); overflow: hidden; }
.hp-bar {
  height: 100%; width: 0%; border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-bar-a), var(--accent-bar-b));
  box-shadow: 0 0 8px var(--accent-glow-soft);
  transition: width .6s var(--ease);
}

/* circular progress ring */
.hc-ring {
  position: relative; width: 52px; height: 52px; flex-shrink: 0;
}
.hc-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.cring-track { fill: none; stroke: var(--progress-track); stroke-width: 4.5; }
.cring-fill {
  fill: none; stroke: var(--accent-bar-a); stroke-width: 4.5; stroke-linecap: round;
  stroke-dasharray: 125.66; stroke-dashoffset: 125.66;
  transition: stroke-dashoffset .7s var(--ease), stroke .3s;
  filter: drop-shadow(0 0 4px var(--accent-glow-soft));
}
.cring-pct {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: .68rem; font-weight: 800;
}

/* wheel */
.wheel-zone {
  position: relative; overflow: hidden;
  --mask-w: 12%;
  mask-image: linear-gradient(to bottom, transparent 0, #000 var(--mask-w), #000 calc(100% - var(--mask-w)), transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 var(--mask-w), #000 calc(100% - var(--mask-w)), transparent 100%);
}
.fade { position: absolute; inset-inline: 0; z-index: 5; pointer-events: none; height: 70px; }
.fade-top { top: 0; background: linear-gradient(var(--bg), transparent); }
.fade-bottom { bottom: 0; background: linear-gradient(transparent, var(--bg)); }
#wheel { height: 100%; outline: none; overflow-y: auto; scrollbar-width: none; overscroll-behavior: contain; }
#wheel::-webkit-scrollbar { display: none; }
#wheel:focus-visible { box-shadow: inset 0 0 0 2px var(--focus-ring); }

.day-row {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px;
  padding: 8px 14px; will-change: transform, opacity, filter;
}
.day-row.month-sep {
  display: block; padding: 20px 18px 8px;
  color: var(--muted); font-size: 1.05rem; font-weight: 700;
  letter-spacing: .04em;
  text-align: center;
}

.day-cell { display: grid; place-items: start center; }
.day-circle {
  position: relative; width: 46px; height: 46px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0;
  background: var(--circle-bg);
  border: 1.5px solid var(--circle-border);
  color: var(--text);
  /* transform/opacity only during scroll; colors still transition on tap
     via the short list below (cheap, few nodes change at once) */
  will-change: transform, opacity;
  contain: layout style;
  user-select: none; -webkit-user-select: none;
}
/* color transitions limited to state changes, not scroll-driven fx */
.day-cell.done .day-circle,
.day-cell.failed .day-circle { transition: background .3s, border-color .3s, box-shadow .3s, color .3s, transform .25s var(--ease); }
.dc-dom {
  font-size: .56rem; font-weight: 500; line-height: 1;
  color: inherit; opacity: .62;
}
.dc-num {
  font-size: .92rem; font-weight: 800; line-height: 1.15;
}
.day-cell.done   .day-circle { background: var(--green); border-color: transparent; color: var(--done-text); box-shadow: 0 0 14px var(--circle-shadow-hover), inset 0 -6px 10px rgba(0,0,0,.10); }
.day-cell.done   .dc-dom { opacity: .8; }
/* center highlight: ONLY the circles react — no row container, no box.
   JS sets --center-fx (0..1); CSS caps the green at --focus-max-alpha
   so the fill stays translucent and numbers keep full contrast.       */
.day-cell:not(.done):not(.failed) .day-circle {
  background: color-mix(in srgb,
    var(--circle-bg) calc(100% - var(--center-fx, 0) * 100%),
    var(--focus-color) calc(var(--center-fx, 0) * var(--focus-max-alpha)));
  border-color: color-mix(in srgb,
    var(--circle-border) calc(100% - var(--center-fx, 0) * 100%),
    var(--focus-color) calc(var(--center-fx, 0) * 60%));
  box-shadow: 0 0 calc(var(--center-fx, 0) * 14px)
    color-mix(in srgb,
      transparent calc(100% - var(--center-fx, 0) * 100%),
      var(--focus-glow-color) calc(var(--center-fx, 0) * var(--focus-glow-alpha)));
}
.day-cell.failed .day-circle { background: var(--red); border-color: transparent; color: var(--failed-text); box-shadow: 0 0 14px var(--red-dim), inset 0 -6px 10px rgba(0,0,0,.08); }
.day-cell.failed .dc-dom { opacity: .8; }
.day-cell.future .day-circle { opacity: .55; border-color: var(--circle-border); background: var(--circle-bg); }
.day-cell.today  .day-circle {
  transform: scale(1.18);
  border-color: var(--green);
  box-shadow: 0 0 0 4px var(--today-ring-a), 0 0 22px var(--today-glow);
  animation: todayPulse 2.6s ease-in-out infinite;
}
@keyframes todayPulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--today-ring-a), 0 0 22px var(--today-ring-b); }
  50%      { box-shadow: 0 0 0 6px var(--today-ring-a), 0 0 30px var(--today-glow); }
}
.day-cell.pop .day-circle { animation: circlePop .45s var(--ease); }
@keyframes circlePop {
  0% { transform: scale(1); } 45% { transform: scale(1.35); } 100% { transform: scale(1); }
}
.sparkle {
  position: absolute; width: 5px; height: 5px; border-radius: 50%;
  background: var(--green); pointer-events: none; z-index: 6;
  animation: sparkleFly .7s ease-out forwards;
}
@keyframes sparkleFly {
  from { transform: translate(0,0) scale(1); opacity: 1; }
  to   { transform: translate(var(--sx), var(--sy)) scale(.1); opacity: 0; }
}

/* today strip */
.today-strip {
  display: flex; align-items: center; gap: 10px; margin: 4px 18px;
  padding: 10px 14px; border-radius: 16px; font-size: .84rem;
  background: var(--card); border: 1px solid var(--line);
  color: var(--muted); text-align: right; width: calc(100% - 36px);
  transition: transform .15s var(--ease);
}
.today-strip:active { transform: scale(.98); }
.ts-chip { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--green); }
.ts-chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }
.ts-date { flex: 1; }
.ts-day { font-weight: 700; color: var(--text); }

/* bottom nav */
.bottom-nav {
  display: flex; justify-content: space-around; gap: 4px;
  padding: 6px 10px calc(env(safe-area-inset-bottom, 0px) + 8px);
  background: var(--nav-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--line); position: sticky; bottom: 0; z-index: 20;
}
.nav-item {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 7px 4px; border-radius: 12px; color: var(--muted); font-size: .68rem; font-weight: 600;
  transition: color .2s, background .2s, transform .15s var(--ease);
}
.nav-item svg { width: 21px; height: 21px; }
.nav-item:active { transform: scale(.93); }
.nav-item.active { color: var(--green); background: var(--green-faint); }

/* ---------- sheets & modals ---------- */
.backdrop {
  position: fixed; inset: 0; z-index: 40;
  background: var(--backdrop-bg); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  opacity: 0; transition: opacity .25s ease;
}
.backdrop.show { opacity: 1; }

.sheet {
  position: fixed; z-index: 50; inset-inline: 0; bottom: 0;
  max-height: 86dvh; display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line); border-bottom: none;
  border-radius: 26px 26px 0 0;
  box-shadow: var(--shadow-sheet);
  transform: translateY(105%);
  transition: transform .32s var(--ease);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.sheet.show { transform: translateY(0); }
.sheet.tall { height: 86dvh; max-height: none; }
.sheet-grab { width: 42px; height: 4px; border-radius: 999px; background: var(--grab-bg); margin: 10px auto 2px; flex-shrink: 0; }
.sheet-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px 12px; flex-shrink: 0;
}
.sheet-head h3 { font-size: 1.05rem; font-weight: 700; }
.sheet-head-actions { display: flex; align-items: center; gap: 6px; }
.sheet-body { padding: 4px 20px 20px; overflow-y: auto; }
.sheet-scroll { flex: 1; overflow-y: auto; padding: 0 20px 20px; }
.sheet-foot { padding: 12px 20px; border-top: 1px solid var(--line); flex-shrink: 0; }
.sheet-foot .btn { width: 100%; }

/* day sheet content */
.ds-hero { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.ds-ring { position: relative; width: 58px; height: 58px; flex-shrink: 0; }
.ds-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ds-ring .track { fill: none; stroke: var(--track-ring); stroke-width: 5; }
.ds-ring .fill { fill: none; stroke: var(--green); stroke-width: 5; stroke-linecap: round;
  stroke-dasharray: 138; stroke-dashoffset: 138; transition: stroke-dashoffset .5s var(--ease), stroke .3s; }
.ds-num {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 1.05rem; font-weight: 800;
}
.ds-titles h3 { font-size: 1.1rem; font-weight: 800; }
.ds-titles p { color: var(--muted); font-size: .86rem; margin-top: 2px; }
.ds-status { margin-left: auto; }
.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .78rem; font-weight: 700; padding: 6px 12px; border-radius: 999px;
  background: var(--inset-bg); color: var(--muted);
}
.status-pill.done { background: var(--green-dim); color: var(--green); }
.status-pill.failed { background: var(--red-dim); color: var(--red); }
.check-list { display: flex; flex-direction: column; gap: 8px; }
.check-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--card-2); border: 1px solid var(--line);
  border-radius: 14px; padding: 12px 14px;
  transition: opacity .2s;
}
.check-row.locked { opacity: .5; pointer-events: none; }
.checkbox {
  width: 26px; height: 26px; border-radius: 9px; flex-shrink: 0;
  border: 2px solid var(--checkbox-border);
  display: grid; place-items: center;
  transition: background .2s, border-color .2s, transform .15s var(--ease);
}
.checkbox svg { width: 15px; height: 15px; stroke-width: 3.2; opacity: 0; transform: scale(.4); transition: all .18s var(--ease); }
.check-row.checked .checkbox { background: var(--green); border-color: var(--green); }
.check-row.checked .checkbox svg { opacity: 1; transform: scale(1); stroke: var(--done-text); }
.check-row:active .checkbox { transform: scale(.9); }
.cr-name { flex: 1; font-size: .93rem; font-weight: 600; }
.cr-icon { flex-shrink: 0; display: grid; place-items: center; }
.cr-icon svg { width: 18px; height: 18px; }
.ds-empty { color: var(--muted); font-size: .87rem; text-align: center; padding: 18px 0 6px; line-height: 1.9; }

/* activities manager */
.act-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--card-2); border: 1px solid var(--line);
  border-radius: 16px; padding: 12px 14px; margin-bottom: 8px;
}
.act-icon {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: grid; place-items: center;
}
.act-icon svg { width: 19px; height: 19px; }
.act-main { flex: 1; min-width: 0; }
.act-name { font-size: .95rem; font-weight: 700; }
.act-sub { font-size: .75rem; color: var(--muted); margin-top: 2px; }
.act-actions { display: flex; gap: 4px; }
.mini-btn {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  color: var(--muted); transition: background .2s, color .2s, transform .12s;
}
.mini-btn:active { transform: scale(.88); }
.mini-btn:hover { background: var(--hover-wash); color: var(--text); }
.mini-btn.danger:hover { color: var(--red); }
.mini-btn svg { width: 17px; height: 17px; }
.hint-empty { color: var(--muted); text-align: center; font-size: .88rem; line-height: 2; padding: 30px 10px; }

/* emoji + colors */
.icon-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.icon-opt {
  aspect-ratio: 1; border-radius: 12px;
  display: grid; place-items: center;
  border: 1.5px solid transparent;
  background: var(--card-2); color: var(--muted);
  transition: all .15s;
}
.icon-opt svg { width: 18px; height: 18px; }
.icon-opt.sel { border-color: var(--green); background: var(--green-dim); color: var(--green); }

/* segmented control (schedule modes) */
.seg-row {
  display: flex; gap: 4px; background: var(--card-2);
  border: 1px solid var(--line); border-radius: 13px; padding: 4px;
}
.seg-btn {
  flex: 1; padding: 9px 2px; border-radius: 10px;
  font-size: .8rem; font-weight: 600; color: var(--muted);
  transition: all .18s var(--ease);
}
.seg-btn.active { background: var(--green-dim); color: var(--green); }
.sched-hint { font-size: .72rem; color: var(--muted); margin-top: 6px; line-height: 1.8; }
.lbl-hint { color: var(--muted-dim); font-weight: 400; }
.num-input { direction: ltr; text-align: right; }
.sched-preview {
  margin-top: 14px; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 6px;
  font-size: .85rem; color: var(--muted);
}
.sched-preview .sp-row { display: flex; justify-content: space-between; align-items: center; }
.sched-preview strong { color: var(--green); font-size: .95rem; }
.sched-preview .sp-sub { font-size: .76rem; }
.sched-preview .sp-today {
  margin-top: 8px; padding: 10px 12px; border-radius: 11px;
  background: var(--green-faint);
  border: 1px solid var(--green-border);
  color: var(--green-strong); font-size: .78rem; line-height: 1.9;
}
.sched-preview .sp-today b { color: var(--green); font-weight: 800; }
.sched-preview .sp-today.off {
  background: var(--inset-bg);
  border-color: var(--line);
  color: var(--muted);
}
.color-row { display: flex; gap: 10px; }
.color-opt {
  width: 34px; height: 34px; border-radius: 50%; border: 2px solid transparent;
  transition: transform .15s var(--ease);
}
.color-opt.sel { border-color: #fff; transform: scale(1.12); box-shadow: 0 0 10px currentColor; }

/* stats sheet */
.stats-wrap { display: flex; flex-direction: column; gap: 18px; }
.big-ring-card { display: flex; flex-direction: column; align-items: center; padding: 26px 20px 20px; }
.brc-ring { position: relative; width: 170px; height: 170px; }
.brc-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.brc-ring .track { fill: none; stroke: var(--track-ring); stroke-width: 11; }
.brc-ring .fill {
  fill: none; stroke: url(#gradGreen), var(--green); stroke-width: 11; stroke-linecap: round;
  stroke-dasharray: 474; transition: stroke-dashoffset 1s var(--ease);
  filter: drop-shadow(0 0 10px var(--circle-shadow-hover));
}
.brc-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; }
.brc-pct { font-size: 2rem; font-weight: 800; }
.brc-lbl { font-size: .78rem; color: var(--muted); }
.streak-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; margin-top: 18px; }
.stat-mini { padding: 14px; text-align: center; }
.stat-mini .sm-lbl { font-size: .76rem; color: var(--muted); display: flex; align-items: center; justify-content: center; gap: 5px; }
.stat-mini .sm-lbl svg { width: 13px; height: 13px; }
.stat-mini .sm-val { font-size: 1.3rem; font-weight: 800; margin-top: 4px; }
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.stat-card {
  padding: 16px 14px; display: flex; flex-direction: column; gap: 6px;
  animation: statIn .4s var(--ease) backwards;
}
@keyframes statIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.sc-top { display: flex; align-items: center; justify-content: space-between; }
.sc-lbl { font-size: .78rem; color: var(--muted); font-weight: 600; }
.sc-icon { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; }
.sc-icon svg { width: 16px; height: 16px; }
.sc-val { font-size: 1.5rem; font-weight: 800; }
.sc-val.green { color: var(--green); } .sc-val.red { color: var(--red); }
.sc-unit { font-size: .72rem; color: var(--muted); font-weight: 400; }

/* settings */
.set-group { margin-bottom: 22px; }
.set-group h4 { font-size: .8rem; color: var(--muted); font-weight: 600; margin: 0 4px 10px; }
.set-row {
  width: 100%; display: flex; align-items: center; gap: 12px; text-align: right;
  background: var(--card-2); border: 1px solid var(--line); border-radius: 16px;
  padding: 14px 16px; margin-bottom: 8px; transition: transform .15s var(--ease), background .2s;
}
.set-row:active { transform: scale(.98); }
.sr-main { flex: 1; display: flex; align-items: center; gap: 10px; font-size: .93rem; font-weight: 600; }
.sr-main svg { width: 19px; height: 19px; color: var(--muted); }
.sr-sub { font-size: .76rem; color: var(--muted); }
.set-row .chev { width: 17px; height: 17px; color: var(--muted); }
.set-row.danger .sr-main svg { color: var(--red); }
.version-note { text-align: center; color: var(--muted); font-size: .74rem; padding: 8px 0 4px; }

/* theme switcher */
.theme-row { cursor: default; }
.theme-seg {
  display: flex; gap: 3px; background: var(--inset-bg);
  border: 1px solid var(--line); border-radius: 11px; padding: 3px;
}
.theme-seg button {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 12px; border-radius: 8px;
  font-size: .78rem; font-weight: 700; color: var(--muted);
  transition: background .2s, color .2s;
}
.theme-seg button svg { width: 14px; height: 14px; }
.theme-seg button.on { background: var(--green-dim); color: var(--green); }

/* modal */
.modal {
  position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 24px;
  background: var(--modal-bg); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; transition: opacity .22s ease;
}
.modal.show { opacity: 1; }
.modal-card { width: 100%; max-width: 360px; padding: 24px; text-align: center;
  transform: scale(.94); transition: transform .22s var(--ease); }
.modal.show .modal-card { transform: scale(1); }
.modal-card h3 { font-size: 1.08rem; font-weight: 800; margin-bottom: 8px; }
.modal-card p { color: var(--muted); font-size: .87rem; line-height: 1.9; margin-bottom: 22px; }
.modal-actions { display: flex; gap: 10px; }
.modal-actions .btn { flex: 1; }

/* toast */
.toast {
  position: fixed; bottom: calc(env(safe-area-inset-bottom, 0px) + 78px); inset-inline: 0; z-index: 70;
  display: flex; justify-content: center; pointer-events: none;
}
.toast span {
  background: var(--toast-bg); border: 1px solid var(--line);
  color: #FFFDF7;
  font-size: .85rem; font-weight: 600; padding: 10px 20px; border-radius: 999px;
  box-shadow: var(--shadow-toast);
  animation: toastIn .3s var(--ease);
}
.toast.err span { border-color: var(--red); color: var(--red); }
@keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* desktop polish */
@media (min-width: 900px) {
  :root { --row-h: 84px; }
  body { display: grid; place-items: center; }
  #app { width: 100%; }
  #mainScreen {
    height: min(92dvh, 900px); width: min(480px, 94vw);
    border: 1px solid var(--line); border-radius: 30px; overflow: hidden;
    background: var(--desktop-frame);
    box-shadow: var(--desktop-frame-shadow);
  }
  .sheet {
    inset-inline: 0; left: 50%; right: auto; translate: -50% 0;
    width: min(440px, 94vw); border-radius: 26px; margin-bottom: 3dvh;
    border-bottom: 1px solid var(--line);
    transform: translateY(calc(105% + 4dvh));
  }
  .sheet.show { transform: translateY(0); }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; transition-duration: .001s !important; scroll-behavior: auto !important; }
}