/* Material 3 Expressive — Telegram Mini App theme
   Color tokens follow M3 roles; light/dark palettes switch via [data-theme]. */

:root, [data-theme="dark"] {
  --primary: #a8c8ff;
  --on-primary: #00315f;
  --primary-container: #1e4780;
  --on-primary-container: #d6e3ff;
  --secondary-container: #3e4759;
  --on-secondary-container: #dae2f9;
  --tertiary: #ffb1c8;
  --tertiary-container: #6c2941;
  --on-tertiary-container: #ffd9e1;
  --surface: #111418;
  --surface-dim: #111418;
  --surface-container-low: #191c20;
  --surface-container: #1d2024;
  --surface-container-high: #282a2f;
  --surface-container-highest: #33353a;
  --on-surface: #e0e2e8;
  --on-surface-variant: #c4c6d0;
  --outline: #8e9099;
  --outline-variant: #43474e;
  --inverse-surface: #e0e2e8;
  --inverse-on-surface: #2d3035;
  --error: #ffb4ab;
  --error-container: #93000a;
  --on-error-container: #ffdad6;
  --success: #7ddb8a;
  --success-container: #1d4723;
  --on-success-container: #b6f1bb;
  --warn: #ffc46b;
  --warn-container: #5c3c00;
  --scrim: rgba(0,0,0,.55);
  --state-hover: rgba(168,200,255,.08);
  --state-press: rgba(168,200,255,.16);
}

[data-theme="light"] {
  --primary: #3e64ac;
  --on-primary: #ffffff;
  --primary-container: #d6e3ff;
  --on-primary-container: #001b3f;
  --secondary-container: #dae2f9;
  --on-secondary-container: #253140;
  --tertiary: #8e495f;
  --tertiary-container: #ffd9e1;
  --on-tertiary-container: #3a0721;
  --surface: #f9f9ff;
  --surface-dim: #d8dae0;
  --surface-container-low: #f3f3fa;
  --surface-container: #edeef4;
  --surface-container-high: #e7e8ee;
  --surface-container-highest: #e2e2e9;
  --on-surface: #191c20;
  --on-surface-variant: #43474e;
  --outline: #73777f;
  --outline-variant: #c3c6cf;
  --inverse-surface: #2d3035;
  --inverse-on-surface: #eff0f7;
  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error-container: #410002;
  --success: #226c30;
  --success-container: #b6f1bb;
  --on-success-container: #00210a;
  --warn: #7a5900;
  --warn-container: #ffdeaa;
  --scrim: rgba(0,0,0,.35);
  --state-hover: rgba(62,100,172,.08);
  --state-press: rgba(62,100,172,.16);
}

:root {
  --r-xs: 10px;
  --r-s: 14px;
  --r-m: 20px;
  --r-l: 28px;
  --r-xl: 36px;
  --r-full: 999px;
  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --ease-standard: cubic-bezier(.2, 0, 0, 1);
  --font: -apple-system, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

body {
  font-family: var(--font);
  background: var(--surface);
  color: var(--on-surface);
  min-height: 100vh;
  transition: background .3s var(--ease-standard);
}
.hidden { display: none !important; }

#app { max-width: 480px; margin: 0 auto; padding: 16px 16px 44px; }
.view { animation: view-in .32s var(--ease-spring) both; }
@keyframes view-in {
  from { opacity: 0; transform: translateY(14px) scale(.985); }
  to   { opacity: 1; transform: none; }
}

/* ---------- typography helpers ---------- */
.display { font-size: 34px; font-weight: 800; letter-spacing: -.5px; }
.label { font-size: 12px; font-weight: 600; letter-spacing: .6px; text-transform: uppercase; color: var(--on-surface-variant); }

/* ---------- top bar ---------- */
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  width: 44px; height: 44px; border-radius: 16px;
  background: var(--primary-container); color: var(--on-primary-container);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  transition: border-radius .3s var(--ease-spring);
}
.brand-icon:active { border-radius: 22px; }
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: .2px; }
.admin-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--tertiary-container); color: var(--on-tertiary-container);
  border: none; border-radius: var(--r-full); padding: 9px 16px;
  font-size: 13px; font-weight: 700; cursor: pointer;
  transition: transform .25s var(--ease-spring), border-radius .25s var(--ease-spring);
}
.admin-chip:active { transform: scale(.94); border-radius: var(--r-s); }

/* ---------- cards (M3 surface containers) ---------- */
.card {
  background: var(--surface-container-low);
  border-radius: var(--r-l);
  padding: 18px; margin-bottom: 14px;
  transition: border-radius .3s var(--ease-spring);
}
.card-title { font-size: 13px; font-weight: 700; color: var(--on-surface-variant);
  text-transform: uppercase; letter-spacing: .8px; margin-bottom: 12px; }
.hint { font-size: 12.5px; color: var(--on-surface-variant); line-height: 1.55; }
.hint.center { text-align: center; margin-top: 10px; }

/* ---------- status card ---------- */
.status-card { display: flex; gap: 20px; align-items: center; padding: 22px 18px;
  background: var(--surface-container); }
.ring-wrap { position: relative; width: 122px; height: 122px; flex-shrink: 0; }
.ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: var(--surface-container-highest); stroke-width: 10; }
.ring-fg {
  fill: none; stroke: var(--primary); stroke-width: 10; stroke-linecap: round;
  stroke-dasharray: 326.7; stroke-dashoffset: 326.7;
  transition: stroke-dashoffset .9s var(--ease-spring), stroke .3s;
}
.ring-fg.warn { stroke: var(--warn); }
.ring-fg.dead { stroke: var(--error); }
.ring-center {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1px;
}
.ring-days { font-size: 32px; font-weight: 800; letter-spacing: -1px; line-height: 1; }
.ring-label { font-size: 11px; font-weight: 600; color: var(--on-surface-variant);
  text-transform: uppercase; letter-spacing: .6px; }

.status-info { flex: 1; min-width: 0; }
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 14px; border-radius: var(--r-full);
  font-size: 12.5px; font-weight: 700; letter-spacing: .3px;
}
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill.ok { background: var(--success-container); color: var(--on-success-container); }
.pill.warn { background: var(--warn-container); color: var(--warn); }
.pill.bad { background: var(--error-container); color: var(--error); }
.status-until { font-size: 13px; color: var(--on-surface-variant); margin-top: 10px; line-height: 1.5; }

.traffic { margin-top: 14px; }
.traffic-bar { height: 8px; background: var(--surface-container-highest);
  border-radius: var(--r-full); overflow: hidden; }
.traffic-fill { height: 100%; width: 0; background: var(--primary);
  border-radius: var(--r-full); transition: width .7s var(--ease-spring); }
.traffic-text { font-size: 11.5px; color: var(--on-surface-variant); margin-top: 6px; }

/* ---------- buttons (M3: pill, shape-morph on press) ---------- */
.btn {
  width: 100%; border: none; border-radius: var(--r-full); padding: 17px;
  font-size: 15.5px; font-weight: 700; font-family: var(--font);
  letter-spacing: .2px; cursor: pointer; color: var(--on-primary);
  background: var(--primary);
  transition: border-radius .3s var(--ease-spring), transform .25s var(--ease-spring),
              filter .15s, background .2s;
}
.btn:active { border-radius: var(--r-m); transform: scale(.97); }
.btn.primary { background: var(--primary); color: var(--on-primary); }
.btn.primary:disabled { filter: grayscale(.7) opacity(.45); cursor: default; transform: none; }
.btn.slim { padding: 13px 22px; width: auto; flex-shrink: 0; }
.btn.tonal { background: var(--secondary-container); color: var(--on-secondary-container); }
.btn.danger-sm, .btn.ok-sm, .btn.ghost-sm {
  border: none; border-radius: var(--r-full); padding: 9px 14px; font-size: 12.5px;
  font-weight: 700; cursor: pointer; font-family: var(--font);
  transition: transform .2s var(--ease-spring), border-radius .25s var(--ease-spring), filter .15s;
}
.btn:active { transform: scale(.94); }
.btn.danger-sm { background: var(--error-container); color: var(--error); }
.btn.ok-sm { background: var(--success-container); color: var(--on-success-container); }
.btn.ghost-sm { background: var(--surface-container-high); color: var(--on-surface); }

/* ---------- config rows (M3 list items) ---------- */
.row { display: flex; align-items: center; gap: 12px; padding: 12px 0;
  border-bottom: 1px solid var(--outline-variant); }
.row:last-of-type { border-bottom: none; }
.row-main { flex: 1; min-width: 0; }
.row-label { font-size: 12px; font-weight: 600; color: var(--on-surface-variant);
  margin-bottom: 4px; text-transform: uppercase; letter-spacing: .5px; }
.row-value { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-family: ui-monospace, "JetBrains Mono", monospace; }
.copy-btn {
  background: var(--secondary-container); border: none; color: var(--on-secondary-container);
  width: 44px; height: 44px; border-radius: 16px; font-size: 16px; cursor: pointer; flex-shrink: 0;
  transition: border-radius .3s var(--ease-spring), transform .2s var(--ease-spring);
}
.copy-btn:active { border-radius: var(--r-full); transform: scale(.9); }

/* ---------- sheets ---------- */
.sheet-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.sheet-title { font-size: 24px; font-weight: 800; letter-spacing: -.4px; }
.icon-btn {
  background: var(--surface-container-high); border: none; color: var(--on-surface);
  width: 44px; height: 44px; border-radius: 16px; font-size: 17px; cursor: pointer;
  transition: border-radius .3s var(--ease-spring), transform .2s var(--ease-spring);
}
.icon-btn:active { border-radius: var(--r-full); transform: scale(.9); }

/* ---------- plans (selectable cards) ---------- */
.plans { display: grid; gap: 10px; margin-bottom: 16px; }
.plan {
  position: relative;
  background: var(--surface-container-low);
  border: 2px solid transparent; border-radius: var(--r-l);
  padding: 17px 18px; display: flex; justify-content: space-between; align-items: center;
  cursor: pointer;
  transition: border-color .2s, background .2s, border-radius .3s var(--ease-spring),
              transform .25s var(--ease-spring);
}
.plan:active { border-radius: var(--r-m); transform: scale(.98); }
.plan.selected { border-color: var(--primary); background: var(--primary-container); }
.plan.selected .plan-name { color: var(--on-primary-container); }
.plan.selected .plan-days { color: var(--on-primary-container); opacity: .8; }
.plan.selected .plan-rub { color: var(--on-primary-container); }
.plan.selected .plan-stars { color: var(--on-primary-container); opacity: .85; }
.plan-name { font-weight: 800; font-size: 16.5px; }
.plan-days { font-size: 12.5px; color: var(--on-surface-variant); margin-top: 3px; }
.plan-prices { text-align: right; }
.plan-rub { font-weight: 800; font-size: 18px; letter-spacing: -.3px; }
.plan-stars { font-size: 12px; color: var(--on-surface-variant); margin-top: 3px; }
.plan-save {
  display: inline-block; margin-left: 6px; font-size: 10px; font-weight: 800;
  color: var(--on-success-container); background: var(--success-container);
  padding: 3px 9px; border-radius: var(--r-full); vertical-align: middle;
  text-transform: uppercase; letter-spacing: .4px;
}
.plan-check {
  display: none; position: absolute; top: -9px; right: 14px;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--primary); color: var(--on-primary);
  font-size: 14px; font-weight: 900; line-height: 26px; text-align: center;
  animation: check-pop .35s var(--ease-spring) both;
}
@keyframes check-pop { from { transform: scale(0); } }
.plan.selected .plan-check { display: block; }

/* ---------- methods (M3 radio list) ---------- */
.methods { background: var(--surface-container-low); }
.method {
  display: flex; align-items: center; gap: 14px; padding: 13px 12px;
  border-radius: var(--r-s); cursor: pointer; border: 2px solid transparent;
  transition: background .15s, border-radius .3s var(--ease-spring);
}
.method:hover { background: var(--state-hover); }
.method:active { border-radius: var(--r-l); }
.method input {
  appearance: none; width: 20px; height: 20px; flex-shrink: 0;
  border: 2px solid var(--outline); border-radius: 50%; margin: 0;
  display: grid; place-content: center; cursor: pointer;
  transition: border-color .15s;
}
.method input::before {
  content: ""; width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary); transform: scale(0);
  transition: transform .25s var(--ease-spring);
}
.method input:checked { border-color: var(--primary); }
.method input:checked::before { transform: scale(1); }
.m-icon {
  width: 40px; height: 40px; border-radius: 14px; flex-shrink: 0;
  background: var(--surface-container-high);
  display: flex; align-items: center; justify-content: center; font-size: 19px;
}
.m-name { flex: 1; font-size: 15px; font-weight: 600; }
.m-price { font-size: 13px; font-weight: 700; color: var(--on-surface-variant); }

/* ---------- admin: segmented buttons ---------- */
.tabs {
  display: flex; gap: 4px; background: var(--surface-container);
  border-radius: var(--r-full); padding: 5px; margin-bottom: 16px;
}
.tab {
  flex: 1; border: none; background: transparent; color: var(--on-surface-variant);
  font-size: 13px; font-weight: 700; font-family: var(--font);
  padding: 10px 4px; border-radius: var(--r-full); cursor: pointer;
  transition: background .25s var(--ease-spring), color .2s, transform .2s var(--ease-spring);
}
.tab:active { transform: scale(.95); }
.tab.active { background: var(--secondary-container); color: var(--on-secondary-container); }

/* ---------- stat tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 10px; margin-bottom: 16px; }
.tile { background: var(--surface-container-low); border-radius: var(--r-m); padding: 15px;
  transition: border-radius .3s var(--ease-spring); }
.tile:active { border-radius: var(--r-xs); }
.tile-num { font-size: 23px; font-weight: 800; letter-spacing: -.5px; }
.tile-label { font-size: 11px; color: var(--on-surface-variant); margin-top: 4px; line-height: 1.35; }

/* ---------- chart ---------- */
.chart { display: flex; gap: 4px; align-items: flex-end; height: 96px; }
.chart .bar {
  flex: 1; border-radius: 8px 8px 3px 3px; min-height: 3px; position: relative;
  background: var(--primary); opacity: .9;
  transition: height .6s var(--ease-spring), border-radius .3s var(--ease-spring);
}
.chart .bar:first-child { border-radius: 3px; }
.chart .bar:hover { opacity: 1; }

/* ---------- payments list ---------- */
.pay-item { display: flex; justify-content: space-between; padding: 11px 0;
  border-bottom: 1px solid var(--outline-variant); font-size: 13.5px; }
.pay-item:last-child { border-bottom: none; }
.pay-meta { color: var(--on-surface-variant); font-size: 12px; }
.pay-ok { color: var(--success); font-weight: 700; }
.pay-pend { color: var(--warn); font-weight: 700; }
.pay-bad { color: var(--error); font-weight: 700; }

/* ---------- inputs (M3 outlined → filled) ---------- */
.input {
  width: 100%; background: var(--surface-container-high); border: 2px solid transparent;
  color: var(--on-surface); border-radius: var(--r-s); padding: 13px 15px;
  font-size: 14.5px; font-family: var(--font); outline: none; margin-bottom: 10px;
  transition: border-color .2s, background .2s, border-radius .3s var(--ease-spring);
}
.input:focus { border-color: var(--primary); }
.input:active { border-radius: var(--r-m); }
.input::placeholder { color: var(--outline); }
select.input { appearance: none; }

.stack { display: grid; gap: 10px; }

/* ---------- user cards ---------- */
.user-card, .token-card {
  background: var(--surface-container-low); border-radius: var(--r-l); padding: 16px;
  transition: border-radius .3s var(--ease-spring);
}
.user-card:active, .token-card:active { border-radius: var(--r-m); }
.uc-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.uc-name { font-weight: 800; font-size: 15.5px; }
.uc-tid { font-size: 11.5px; color: var(--on-surface-variant); font-weight: 600; }
.uc-sub { font-size: 13px; margin: 8px 0 12px; color: var(--on-surface-variant); }
.uc-sub b.ok { color: var(--success); }
.uc-sub b.bad { color: var(--error); }
.badge { font-size: 10px; font-weight: 800; padding: 3px 9px; border-radius: var(--r-full);
  vertical-align: middle; text-transform: uppercase; letter-spacing: .4px; }
.badge.ban { background: var(--error-container); color: var(--error); }
.badge.tok { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.actions { display: flex; gap: 7px; flex-wrap: wrap; }
.actions .btn { width: auto; flex: 1 1 auto; }

/* ---------- generator card ---------- */
.gen-card .gen-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.gen-row .input { margin-bottom: 0; }
.gen-row select { max-width: 132px; }
.gen-row input[type=number] { max-width: 74px; }
.gen-row #token-days { flex: 1 1 100px; max-width: none; }
.gen-row #token-mode { flex: 1 1 145px; max-width: none; }
.gen-row #token-max-uses { flex: 1 1 120px; max-width: 150px; }

.token-code { font-family: ui-monospace, monospace; font-weight: 800; font-size: 15.5px; letter-spacing: .5px; }
.token-link { font-size: 12px; color: var(--primary); word-break: break-all; margin: 8px 0;
  font-weight: 600; }
.token-note { font-size: 12.5px; color: var(--on-surface-variant); }

/* ---------- per-user traffic chart ---------- */
.uc-traffic { margin-top: 12px; background: var(--surface-container);
  border-radius: var(--r-m); padding: 14px; }
.uc-traffic .chart { height: 72px; margin-top: 10px; }
.uc-traffic-head { display: flex; justify-content: space-between; align-items: center; }
.period-chips { display: flex; gap: 5px; }
.chip {
  border: 1px solid var(--outline-variant); background: transparent; color: var(--on-surface-variant);
  font-size: 11.5px; font-weight: 700; font-family: var(--font);
  padding: 5px 11px; border-radius: var(--r-full); cursor: pointer;
  transition: background .2s, color .2s, transform .2s var(--ease-spring);
}
.chip:active { transform: scale(.92); }
.chip-on { background: var(--secondary-container); color: var(--on-secondary-container);
  border-color: transparent; }
.traffic-summary {
  display: flex; justify-content: space-between; gap: 6px; flex-wrap: wrap;
  margin-top: 10px; font-size: 11.5px; color: var(--on-surface-variant);
}
.traffic-summary b { color: var(--on-surface); }

/* ---------- invite gate ---------- */
.invite-card { text-align: center; padding: 34px 22px; margin-top: 10vh;
  background: var(--surface-container-low); }
.invite-emoji {
  width: 84px; height: 84px; margin: 0 auto 16px; font-size: 40px;
  background: var(--primary-container); color: var(--on-primary-container);
  border-radius: var(--r-xl); display: flex; align-items: center; justify-content: center;
  animation: blob 4s ease-in-out infinite;
}
@keyframes blob {
  0%, 100% { border-radius: 38% 62% 55% 45% / 45% 40% 60% 55%; }
  50%       { border-radius: 60% 40% 42% 58% / 55% 62% 38% 45%; }
}
.invite-title { font-size: 22px; font-weight: 800; letter-spacing: -.3px; margin-bottom: 8px; }
.invite-card .input { margin: 20px 0 10px; text-align: center; letter-spacing: 1.5px;
  font-weight: 700; }

/* ---------- overlay (scrim + spinner) ---------- */
.overlay {
  position: fixed; inset: 0; background: var(--scrim); backdrop-filter: blur(6px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px; z-index: 50; font-size: 15px; font-weight: 700;
  animation: fade-in .25s var(--ease-standard);
}
@keyframes fade-in { from { opacity: 0; } }
.spinner {
  width: 46px; height: 46px; border: 5px solid var(--surface-container-highest);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- snackbar (M3 inverse-surface) ---------- */
.toast {
  position: fixed; bottom: max(28px, env(safe-area-inset-bottom));
  left: 16px; right: 16px; transform: none;
  background: var(--inverse-surface); color: var(--inverse-on-surface);
  font-size: 13.5px; font-weight: 600; padding: 14px 24px;
  width: auto; max-width: none; line-height: 1.4;
  border-radius: var(--r-s); z-index: 60; white-space: normal;
  overflow-wrap: anywhere; word-break: break-word; text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  animation: toast-in .35s var(--ease-spring);
}
.toast.err { background: var(--error-container); color: var(--on-error-container); }
@keyframes toast-in { from { opacity: 0; transform: translateY(16px) scale(.9); } }

/* ---------- dev banner ---------- */
.dev-banner {
  background: var(--warn-container); color: var(--warn); font-size: 12px;
  font-weight: 600; text-align: center; border-radius: var(--r-full);
  padding: 9px; margin-bottom: 14px;
}

/* ---------- docs footer ---------- */
.docs-footer {
  text-align: center; margin-top: 22px; font-size: 12.5px;
  color: var(--on-surface-variant);
  display: flex; justify-content: center; gap: 8px; flex-wrap: wrap;
}
.docs-footer a { color: var(--primary); text-decoration: none; font-weight: 600; }
.docs-footer a:active { opacity: .7; }
.docs-date { width: 100%; font-size: 11px; color: var(--outline); margin-top: 4px; }