/* ============================================================================
   Active Yoga — shared design system (Yoga-crm-6, clean build C0)
   Source of truth: redesign/index.html :root + reusable components (verbatim).
   Dark theme only. Shared by staff/ and client/ apps.

   Fonts (load via @import / <link> in each app <head>):
     Playfair Display (display — has Cyrillic; Fraunces does NOT), Inter, JetBrains Mono.
   Contains ONLY tokens + reusable primitives. Pane/screen-specific CSS lives
   in each app. No QR / payment styles by design (no payments in this product).
   ========================================================================== */

:root{
  /* surfaces */
  --bg:#0B0B11; --bgDeep:#07070C;
  --panel:#15151E; --panelHi:#1D1D2A;
  --field:#11111A; --fieldHi:#1A1A26;
  --border:rgba(240,236,255,0.10); --borderHi:rgba(240,236,255,0.20);
  /* text */
  --text:#F0ECFF; --textMuted:rgba(240,236,255,0.6); --textFaint:rgba(240,236,255,0.4);
  /* accents */
  --pink:#FF3D9A; --turq:#3DE8E0; --purple:#A855F7; --amber:#FFB450; --danger:#FF5C5C;
  --ink:#0B0B11; --surface:#1D1D2A;
  --shellBg:#000;
  --kpiAccentBg:linear-gradient(135deg,#15151E 0%,#1D1D2A 100%);
  --navBg:rgba(11,11,17,0.92);
  --overlayBg:rgba(0,0,0,0.55);
  --sheetShadow:0 -8px 32px rgba(255,61,154,0.10);
  /* radius / metrics */
  --r:10px; --r2:14px; --r3:20px;
  --nav-h:68px; --safe:env(safe-area-inset-bottom,0px);
  /* type */
  --display:'Playfair Display',Georgia,serif;
  --ui:'Inter',-apple-system,system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  /* motion — 3 durations + 1 curve, nothing else */
  --t-fast:120ms; --t-base:220ms; --t-slow:380ms; --ease:cubic-bezier(.2,.9,.3,1);
}

/* ── reset ───────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
/* `hidden` must always win: a component rule like .kv-row{display:flex} beats
   the browser's own [hidden] rule, so the attribute silently stopped working
   (the admin price row showed on every class card, to teachers too). */
[hidden]{display:none !important}
html,body{height:100%;background:var(--shellBg);color:var(--text);overscroll-behavior:none}
body{font-family:var(--ui);-webkit-font-smoothing:antialiased;overflow:hidden}
button,input,select{font-family:inherit;outline:none}
::-webkit-scrollbar{width:0}

/* ── shell / phone frame (desktop preview → full-bleed on real phones) ─────── */
.shell{position:relative;width:100%;height:100vh;display:flex;align-items:center;justify-content:center;background:var(--shellBg)}
.shell::before{content:'';position:fixed;inset:0;pointer-events:none;background:
  radial-gradient(50vw 50vw at 0% 0%, rgba(255,61,154,0.10) 0%, transparent 60%),
  radial-gradient(50vw 50vw at 100% 100%, rgba(61,232,224,0.08) 0%, transparent 65%);}
.app-frame{
  width:390px;height:844px;background:var(--bg);
  /* standalone PWA on iOS draws under the status bar — keep content below it */
  padding-top:env(safe-area-inset-top,0px);
  position:relative;overflow:hidden;display:flex;flex-direction:column;
  border-radius:44px;border:1px solid var(--border);
  box-shadow:0 0 0 8px #1F1B2A, 0 30px 80px -20px rgba(0,0,0,0.55);
  zoom:var(--scale,1);flex-shrink:0;
}
@media (max-width:500px),(pointer:coarse) and (max-height:500px){
  .app-frame{width:100vw;height:100vh;border-radius:0;border:0;box-shadow:none;zoom:1}
  .shell::before{display:none}
}

/* ── app layout ────────────────────────────────────────────────────────────── */
.page-wrap{flex:1;overflow-y:auto;overflow-x:hidden;padding:0 0 calc(var(--nav-h) + var(--safe) + 12px)}
.pane{display:none}
.pane.active{display:block;animation:paneIn var(--t-base) var(--ease) both}
.pane.active.from-right{animation-name:paneInR}
.pane.active.from-left{animation-name:paneInL}
@keyframes paneIn{from{opacity:0}to{opacity:1}}
@keyframes paneInR{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
@keyframes paneInL{from{opacity:0;transform:translateX(-18px)}to{opacity:1;transform:none}}

.page-top{padding:30px 18px 8px;display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.page-top .top-cta{flex-shrink:0;margin-top:18px}
.page-body{padding:14px 18px}
.eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:0.13em;color:var(--pink);text-transform:uppercase;margin-bottom:6px}
.page-top h1{font-family:var(--display);font-weight:400;font-size:32px;letter-spacing:-0.015em;line-height:1.05;color:var(--text)}
.page-top h1 .dot,.auth-title .dot,.sheet h3 .dot{color:var(--pink)}
.page-top p{font-family:var(--ui);font-size:13px;color:var(--textMuted);margin-top:4px}
.section-lbl{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.12em;text-transform:uppercase;color:var(--textFaint);margin:18px 0 10px;display:flex;align-items:center;gap:8px}
.section-lbl::after{content:'';flex:1;height:1px;background:var(--border)}

/* ── buttons ─────────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;border-radius:10px;border:none;font-family:var(--ui);font-size:13px;font-weight:600;white-space:nowrap;cursor:pointer;transition:filter .15s,transform .1s,background .15s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--pink);color:var(--ink);box-shadow:0 4px 18px -8px var(--pink)}
.btn-primary:hover{filter:brightness(1.05)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--borderHi)}
.btn-ghost:hover{background:var(--fieldHi)}
.btn-rose{background:rgba(255,92,92,0.10);color:var(--danger);border:1px solid rgba(255,92,92,0.30)}
.btn-amber{background:rgba(255,180,80,0.10);color:var(--amber);border:1px solid rgba(255,180,80,0.30)}
.btn-turq{background:rgba(61,232,224,0.10);color:var(--turq);border:1px solid rgba(61,232,224,0.30)}
.btn-full{width:100%}
.btn-sm{padding:8px 12px;font-size:12px;border-radius:9px;gap:5px}
.btn-sm .plus{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;background:rgba(11,11,17,0.20);font-size:11px;font-weight:700;line-height:1}

/* ── fields ──────────────────────────────────────────────────────────────── */
.field{margin-bottom:14px}
.field label{display:block;font-family:var(--mono);font-size:9.5px;font-weight:500;letter-spacing:0.11em;text-transform:uppercase;color:var(--textFaint);margin-bottom:7px}
.search-row{display:flex;align-items:center;gap:9px;background:var(--field);border:1px solid var(--border);border-radius:10px;padding:0 13px;margin-bottom:14px;color:var(--textFaint)}
.search-row:focus-within{border-color:var(--pink)}
.search-row input{flex:1;min-width:0;background:none;border:0;padding:12px 0;color:var(--text);font-family:var(--ui);font-size:14px;-webkit-appearance:none;appearance:none}
.search-row input::placeholder{color:var(--textFaint)}
.field input,.field select{width:100%;background:var(--field);border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-family:var(--ui);font-size:14px;transition:border-color .15s,box-shadow .15s;-webkit-appearance:none;appearance:none}
/* One fixed height for every single-line control: iOS Safari renders an EMPTY
   date/time input (appearance:none) without a text line — shorter and narrower
   than its neighbours — and it jumps when a value is picked. */
.field input,.field select{height:46px}
.field input[type=date],.field input[type=time]{display:block;min-width:0;line-height:20px}
.field input::-webkit-date-and-time-value{text-align:left;min-height:20px}
.field input:focus,.field select:focus{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,61,154,0.10)}
.field select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23F0ECFF' stroke-width='2' stroke-opacity='0.4'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}

/* ── segmented control ───────────────────────────────────────────────────── */
.seg{display:flex;background:var(--field);border:1px solid var(--border);border-radius:10px;padding:3px;gap:2px}
.seg button{flex:1;background:transparent;border:0;color:var(--textFaint);padding:9px 10px;border-radius:8px;font-family:var(--ui);font-size:12.5px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:background-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease)}
.seg button:hover{color:var(--text)}
.seg button.on{background:var(--bg);color:var(--text);box-shadow:0 0 0 1px var(--borderHi)}

/* ── card ────────────────────────────────────────────────────────────────── */
.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:10px;transition:border-color .2s}
.card:hover{border-color:var(--borderHi)}

/* ── list row ────────────────────────────────────────────────────────────── */
.list-row{display:flex;align-items:center;gap:12px;padding:14px;background:var(--panel);border:1px solid var(--border);border-radius:12px;margin-bottom:8px;cursor:pointer;transition:border-color .15s}
.list-row:hover{border-color:var(--borderHi)}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--turq) 0%,var(--purple) 50%,var(--pink) 100%);display:flex;align-items:center;justify-content:center;font-family:var(--display);font-size:15px;color:var(--ink);font-weight:500;flex-shrink:0}
.row-body{flex:1;min-width:0}
.row-nm{font-family:var(--ui);font-size:14px;font-weight:600;color:var(--text)}
/* Cyrillic ~+20-40% wider: no nowrap on subtitles >~13 chars — let them wrap */
.row-sub{font-family:var(--mono);font-size:9.5px;letter-spacing:0.015em;color:var(--textFaint);text-transform:uppercase;margin-top:3px;white-space:normal;line-height:1.5}
.row-sub.tel{font-family:var(--ui);font-size:11.5px;letter-spacing:0;text-transform:none;color:var(--textMuted)}
.row-trail{font-family:var(--mono);font-size:11px;color:var(--turq);font-weight:500;text-align:right;flex-shrink:0}
.row-trail.warn{color:var(--amber)}
.row-trail.bad{color:var(--danger)}
.row-trail .small{font-family:var(--mono);font-size:9px;letter-spacing:0.01em;color:currentColor;opacity:.6;text-transform:none;margin-top:3px;font-weight:500}

/* ── KPI ─────────────────────────────────────────────────────────────────── */
.kpi-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:14px}
.kpi{position:relative;min-width:0;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px}
.kpi .lbl{font-family:var(--mono);font-size:9.5px;letter-spacing:0.11em;text-transform:uppercase;color:var(--textFaint);margin-bottom:8px}
.kpi .val{font-family:var(--display);font-size:30px;font-weight:400;color:var(--text);line-height:1;letter-spacing:-0.01em}
.kpi .delta{font-family:var(--mono);font-size:11px;color:var(--turq);margin-top:6px;font-weight:500}
.kpi .delta.down{color:var(--danger)}
.kpi.accent{background:var(--kpiAccentBg);border-color:rgba(255,61,154,0.25)}
.kpi.accent .val{color:var(--pink)}

/* ── overlay / bottom sheet ──────────────────────────────────────────────── */
.overlay{position:absolute;inset:0;z-index:200;background:transparent;backdrop-filter:blur(0px);display:flex;align-items:flex-end;justify-content:center;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s,visibility .3s,background .3s,backdrop-filter .3s}
.overlay.open{opacity:1;visibility:visible;pointer-events:all;background:var(--overlayBg);backdrop-filter:blur(8px)}
.sheet{background:var(--panel);border:1px solid var(--border);border-top:1px solid rgba(255,61,154,0.30);border-radius:20px 20px 0 0;padding:22px 20px calc(22px + var(--safe));width:100%;max-height:88%;overflow-y:auto;transform:translateY(100%) scale(0.97);opacity:0;transition:transform var(--t-slow) cubic-bezier(.2,.9,.3,1.05),opacity .25s ease;box-shadow:var(--sheetShadow)}
.overlay.open .sheet{transform:translateY(0) scale(1);opacity:1}
.sheet-handle{width:42px;height:4px;background:var(--border);border-radius:2px;margin:-8px auto 18px}
.sheet h3{font-family:var(--display);font-size:24px;color:var(--text);font-weight:400;margin-bottom:8px}
.sheet p{font-family:var(--ui);font-size:13px;color:var(--textMuted);margin-bottom:16px;line-height:1.5}
.kv-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border)}
.kv-row:last-child{border-bottom:none}

/* ── invite sheet (C4): AY-XXXX code + issued list ───────────────────────── */
.inv-code{display:flex;align-items:center;justify-content:center;gap:2px;padding:18px 12px;margin:4px 0 12px;border-radius:14px;background:var(--field);border:1px dashed rgba(255,61,154,.45);font-family:var(--mono);font-size:26px;font-weight:500;letter-spacing:.12em;color:var(--pink)}
.inv-code.empty{color:var(--textFaint);border-color:var(--border);font-size:15px;letter-spacing:.04em}
.inv-list{display:flex;flex-direction:column;gap:6px;margin-top:4px}
.inv-empty{font-family:var(--mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--textFaint);text-align:center;padding:14px 0}
.inv-row{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--field);border:1px solid var(--border);border-radius:10px}
.inv-row .i-c{font-family:var(--mono);font-size:12.5px;color:var(--text);letter-spacing:.08em}
.inv-row .i-tag{font-family:var(--mono);font-size:8.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--turq);border:1px solid rgba(61,232,224,.3);border-radius:5px;padding:2px 5px}
.inv-row .i-s{flex:1;font-family:var(--mono);font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--textFaint);text-align:right}
.inv-row .i-s.soon{color:var(--amber)}
.inv-row .i-x{flex-shrink:0;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border:0;border-radius:7px;background:transparent;color:var(--textFaint);font-size:15px;line-height:1;cursor:pointer;transition:background-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}
.inv-row .i-x:hover{background:rgba(255,92,92,.12);color:var(--danger)}

/* ── bottom nav ──────────────────────────────────────────────────────────── */
#bottom-nav{position:absolute;bottom:0;left:0;right:0;z-index:50;background:var(--navBg);backdrop-filter:blur(16px);border-top:1px solid var(--border);display:flex;height:calc(var(--nav-h) + var(--safe));padding-bottom:var(--safe)}
.nav-btn{flex:1;min-width:0;padding:0 2px;background:none;border:none;color:var(--textFaint);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;font-family:var(--mono);font-size:8px;font-weight:500;letter-spacing:0.03em;text-transform:uppercase;position:relative;cursor:pointer;overflow:hidden;transition:color .15s}
.nav-btn:hover{color:var(--textMuted)}
.nav-btn.active{color:var(--pink)}
.nav-btn.active::after{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:24px;height:2px;background:var(--pink);border-radius:0 0 2px 2px;box-shadow:0 0 10px rgba(255,61,154,0.6)}
.nav-btn svg{width:20px;height:20px;stroke-width:1.6}
.nav-btn[hidden]{display:none}

/* ── toast (2.4s auto-dismiss; kind = '' | ok | warn) ────────────────────── */
#toast{position:absolute;top:calc(18px + env(safe-area-inset-top,0px));left:16px;right:16px;transform:translateY(-80px);background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:11px 18px;text-align:center;line-height:1.4;font-family:var(--ui);font-size:13px;font-weight:500;z-index:999;white-space:normal;pointer-events:none;opacity:0;transition:transform .35s cubic-bezier(.2,.9,.3,1.15),opacity .3s}
#toast.show{transform:translateY(0);opacity:1}

/* ── PWA: install hint + offline bar (rendered by shared/pwa.js) ─────────── */
.pwa-bar,.pwa-off{position:fixed;left:12px;right:12px;margin:0 auto;max-width:420px;z-index:900;font-family:var(--ui);animation:pwaIn var(--t-base) var(--ease) both}
.pwa-bar{bottom:calc(var(--nav-h) + var(--safe) + 12px);display:flex;align-items:center;gap:12px;padding:12px 10px 12px 12px;background:var(--panel);border:1px solid var(--border);border-radius:14px;box-shadow:var(--sheetShadow)}
.pwa-ic{width:40px;height:40px;border-radius:10px;flex-shrink:0}
.pwa-tx{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.pwa-tx b{font-size:14px;font-weight:600;color:var(--text)}
.pwa-tx span{font-size:12px;line-height:1.35;color:var(--textMuted)}
.pwa-x{flex-shrink:0;width:32px;height:32px;border:0;background:transparent;color:var(--textMuted);font-size:20px;line-height:1;cursor:pointer;border-radius:8px}
.pwa-off{top:calc(env(safe-area-inset-top,0px) + 10px);width:max-content;max-width:calc(100% - 24px);padding:7px 14px;border-radius:999px;background:var(--panel);border:1px solid rgba(255,180,80,0.45);color:var(--amber);font-size:12px;font-weight:500;text-align:center}
@keyframes pwaIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
#toast.ok{border-color:rgba(61,232,224,0.40);color:var(--turq)}
#toast.warn{border-color:rgba(255,180,80,0.40);color:var(--amber)}

/* ── accessibility floor ─────────────────────────────────────────────────── */
:focus-visible{outline:2px solid var(--pink);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}