/* ============================================================
   IronTrack — Design System v2
   Tokens, primitives, components. 8px spacing grid.
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* 8px spacing scale */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 32px; --space-8: 40px;
  --space-9: 48px; --space-10: 64px; --space-11: 80px; --space-12: 96px;

  /* Radii */
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 20px; --r-2xl: 24px; --r-pill: 999px;

  /* Type scale */
  --text-xs: 12px;
  --text-sm: 13px;
  --text-base: 14px;
  --text-md: 15px;
  --text-lg: 17px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 30px;
  --text-4xl: 38px;
  --text-5xl: 48px;

  /* Type rhythm */
  --lh-tight: 1.1;
  --lh-snug: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.65;

  /* Tracking */
  --tr-tight: -0.022em;
  --tr-snug:  -0.012em;
  --tr-normal: 0;
  --tr-wide:  0.04em;
  --tr-widest: 0.12em;

  /* Motion */
  --ease-out: cubic-bezier(.2,.7,.2,1);
  --ease-in-out: cubic-bezier(.4,.0,.2,1);
  --dur-fast: 140ms;
  --dur-mid: 220ms;
  --dur-slow: 320ms;

  /* Brand */
  --brand: #6366f1;          /* indigo-500 — primary accent */
  --brand-strong: #4f46e5;   /* indigo-600 */
  --brand-soft: #818cf8;     /* indigo-400 */
  --brand-glow: 99 102 241;  /* rgb */
  --grad-brand: linear-gradient(135deg, #6366f1 0%, #8b5cf6 55%, #d946ef 100%);
  --grad-brand-soft: linear-gradient(135deg, rgba(99,102,241,.18), rgba(217,70,239,.10));

  /* Status */
  --success: #10b981;
  --danger:  #ef4444;
  --warning: #f59e0b;
  --info:    #38bdf8;
}

/* ---------- Theme: dark ---------- */
html.dark {
  --bg-0: #050507;            /* page background base */
  --bg-1: #0a0a0e;            /* app surface base */
  --bg-2: #0e0e13;            /* primary card */
  --bg-3: #131319;            /* raised card */
  --bg-4: #181820;            /* inset / row hover */
  --bg-5: #1f1f29;            /* input bg */
  --line-1: rgba(255,255,255,.06);
  --line-2: rgba(255,255,255,.09);
  --line-3: rgba(255,255,255,.14);
  --text-1: #f4f4f6;          /* primary text */
  --text-2: #d4d4dc;          /* secondary */
  --text-3: #9b9ba6;          /* muted */
  --text-4: #6b6b78;          /* hint */
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 8px 24px -12px rgba(0,0,0,.55), 0 2px 6px rgba(0,0,0,.25);
  --shadow-lg: 0 24px 50px -18px rgba(0,0,0,.7), 0 4px 12px rgba(0,0,0,.35);
  --shadow-glow: 0 10px 40px -16px rgba(var(--brand-glow) / .55);
  --ring-focus: 0 0 0 4px rgba(var(--brand-glow) / .25);
}

/* ---------- Theme: light ---------- */
html:not(.dark) {
  --bg-0: #f4f4f7;
  --bg-1: #f8f8fb;
  --bg-2: #ffffff;
  --bg-3: #ffffff;
  --bg-4: #f4f4f7;
  --bg-5: #ffffff;
  --line-1: rgba(15,15,20,.06);
  --line-2: rgba(15,15,20,.09);
  --line-3: rgba(15,15,20,.14);
  --text-1: #0f0f14;
  --text-2: #34343e;
  --text-3: #5a5a66;
  --text-4: #8a8a94;
  --shadow-sm: 0 1px 2px rgba(15,15,20,.06);
  --shadow-md: 0 8px 24px -16px rgba(15,15,20,.18), 0 1px 3px rgba(15,15,20,.06);
  --shadow-lg: 0 24px 60px -22px rgba(15,15,20,.25), 0 2px 6px rgba(15,15,20,.06);
  --shadow-glow: 0 10px 30px -14px rgba(var(--brand-glow) / .35);
  --ring-focus: 0 0 0 4px rgba(var(--brand-glow) / .18);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', -apple-system, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11', 'ss01';
  font-variant-ligatures: common-ligatures;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: var(--text-base);
  line-height: var(--lh-normal);
  color: var(--text-1);
  background: var(--bg-0);
  letter-spacing: var(--tr-snug);
  min-height: 100vh;
}

/* Subtle gradient backdrop on dark */
html.dark body {
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(139,92,246,.10), transparent 60%),
    radial-gradient(800px 500px at -10% 8%, rgba(99,102,241,.08), transparent 60%),
    var(--bg-0);
}
html:not(.dark) body {
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(139,92,246,.06), transparent 60%),
    radial-gradient(800px 500px at -10% 8%, rgba(99,102,241,.05), transparent 60%),
    var(--bg-0);
}

/* ---------- Typography primitives ---------- */
h1, h2, h3, h4 { margin: 0; color: var(--text-1); letter-spacing: var(--tr-tight); }
p { margin: 0; }
a { color: inherit; text-decoration: none; }

.t-eyebrow {
  font-size: var(--text-xs); font-weight: 600;
  text-transform: uppercase; letter-spacing: var(--tr-widest);
  color: var(--text-3);
}
.t-display { font-size: var(--text-4xl); font-weight: 700; line-height: var(--lh-tight); letter-spacing: var(--tr-tight); }
.t-h1 { font-size: var(--text-3xl); font-weight: 700; line-height: var(--lh-tight); letter-spacing: var(--tr-tight); }
.t-h2 { font-size: var(--text-2xl); font-weight: 700; line-height: var(--lh-snug); letter-spacing: var(--tr-tight); }
.t-h3 { font-size: var(--text-lg); font-weight: 600; line-height: var(--lh-snug); letter-spacing: var(--tr-snug); }
.t-body { font-size: var(--text-base); line-height: var(--lh-normal); color: var(--text-2); }
.t-muted { color: var(--text-3); }
.t-hint  { color: var(--text-4); font-size: var(--text-sm); }

.num { font-feature-settings: 'tnum' 1, 'lnum' 1, 'cv02' 1; font-variant-numeric: tabular-nums; }

@media (min-width: 768px) {
  .t-display { font-size: var(--text-5xl); }
  .t-h1 { font-size: var(--text-4xl); }
}

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding-left: var(--space-4); padding-right: var(--space-4); }
@media (min-width: 640px)  { .container { padding-left: var(--space-6); padding-right: var(--space-6); } }
@media (min-width: 1024px) { .container { padding-left: var(--space-8); padding-right: var(--space-8); } }
.page { padding-top: var(--space-5); padding-bottom: var(--space-10); }
@media (min-width: 768px) { .page { padding-top: var(--space-7); } }
.section + .section { margin-top: var(--space-8); }

.stack-1 > * + * { margin-top: var(--space-1); }
.stack-2 > * + * { margin-top: var(--space-2); }
.stack-3 > * + * { margin-top: var(--space-3); }
.stack-4 > * + * { margin-top: var(--space-4); }
.stack-5 > * + * { margin-top: var(--space-5); }
.stack-6 > * + * { margin-top: var(--space-6); }
.stack-7 > * + * { margin-top: var(--space-7); }

/* ---------- Card ---------- */
.card {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--line-1);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--dur-mid) var(--ease-out),
              box-shadow var(--dur-mid) var(--ease-out),
              border-color var(--dur-mid) var(--ease-out);
}
html.dark .card::before {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,0) 28%);
  pointer-events: none;
}
.card-hover:hover {
  transform: translateY(-2px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-lg);
}
.card-pad   { padding: var(--space-6); }
.card-pad-lg{ padding: var(--space-7); }
.card-pad-sm{ padding: var(--space-5); }

/* Inset / sub-surface inside a card */
.inset {
  background: var(--bg-3);
  border: 1px solid var(--line-1);
  border-radius: var(--r-md);
}

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--bg-3);
  --btn-fg: var(--text-1);
  --btn-bd: var(--line-2);
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-2);
  font-family: inherit; font-weight: 600; font-size: var(--text-base);
  line-height: 1; letter-spacing: var(--tr-snug);
  padding: 0 var(--space-4); height: 40px;
  border-radius: var(--r-md);
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  cursor: pointer; user-select: none;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.btn:focus-visible { outline: none; box-shadow: var(--ring-focus); }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn i { font-size: 12px; }
.btn-sm { height: 32px; padding: 0 var(--space-3); font-size: var(--text-sm); border-radius: var(--r-sm); }
.btn-lg { height: 48px; padding: 0 var(--space-6); font-size: var(--text-md); }
.btn-icon { width: 36px; height: 36px; padding: 0; }
.btn-icon.btn-sm { width: 32px; height: 32px; }

.btn-primary {
  --btn-bd: transparent;
  background: var(--brand);
  color: #fff;
  box-shadow: 0 1px 0 0 rgba(255,255,255,.18) inset, 0 8px 22px -10px rgba(var(--brand-glow) / .65);
}
.btn-primary:hover { background: var(--brand-strong); transform: translateY(-1px); box-shadow: 0 1px 0 0 rgba(255,255,255,.18) inset, 0 14px 30px -12px rgba(var(--brand-glow) / .75); }
.btn-primary:active { transform: scale(.98); }

.btn-secondary { background: var(--bg-3); color: var(--text-1); border-color: var(--line-2); }
.btn-secondary:hover { background: var(--bg-4); border-color: var(--line-3); transform: translateY(-1px); }

.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--bg-3); color: var(--text-1); }

.btn-danger { background: rgba(239,68,68,.10); color: #fca5a5; border-color: rgba(239,68,68,.25); }
.btn-danger:hover { background: rgba(239,68,68,.16); border-color: rgba(239,68,68,.4); transform: translateY(-1px); }
html:not(.dark) .btn-danger { color: #b91c1c; }

/* Link-style button (text trigger) */
.btn-link { background: none; border: none; padding: 0; height: auto; color: var(--brand-soft); font-weight: 600; }
.btn-link:hover { color: var(--brand); }

/* ---------- Inputs ---------- */
.field { display: block; }
.label {
  display: block; font-size: var(--text-xs); font-weight: 600;
  color: var(--text-3); letter-spacing: var(--tr-wide); text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.input, .select, .textarea {
  width: 100%;
  height: 42px;
  padding: 0 var(--space-4);
  background: var(--bg-5);
  color: var(--text-1);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  font-family: inherit; font-size: var(--text-base); line-height: 1.4;
  letter-spacing: var(--tr-snug);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
  appearance: none;
}
.textarea { height: auto; padding-top: 10px; padding-bottom: 10px; line-height: var(--lh-normal); resize: vertical; }
.input::placeholder, .textarea::placeholder { color: var(--text-4); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--line-3); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: var(--ring-focus);
}
.input:disabled { opacity: .6; cursor: not-allowed; }

.select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-3) 50%),
    linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: var(--space-8);
}

.input-with-icon { position: relative; }
.input-with-icon .input { padding-left: 40px; }
.input-with-icon .ico {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--text-3); font-size: 13px; pointer-events: none;
}

/* ---------- Pills / badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--text-xs); font-weight: 600;
  padding: 4px 10px; border-radius: var(--r-pill);
  background: var(--bg-3); color: var(--text-2); border: 1px solid var(--line-2);
  letter-spacing: var(--tr-snug);
}
.badge-brand { background: rgba(var(--brand-glow) / .14); color: var(--brand-soft); border-color: rgba(var(--brand-glow) / .35); }
.badge-success { background: rgba(16,185,129,.12); color: #34d399; border-color: rgba(16,185,129,.3); }
.badge-warn { background: rgba(245,158,11,.12); color: #fbbf24; border-color: rgba(245,158,11,.3); }
.badge-pro {
  background: var(--grad-brand); color: #fff; border: 0;
  padding: 4px 10px; font-size: var(--text-xs); font-weight: 700;
  letter-spacing: var(--tr-wide); text-transform: uppercase;
}
.badge-dot { width: 6px; height: 6px; border-radius: 999px; background: currentColor; }

/* ---------- Sidebar nav ---------- */
.nav-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 10px var(--space-3);
  margin: 0 var(--space-2);
  border-radius: var(--r-md);
  color: var(--text-3);
  font-size: var(--text-base); font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.nav-item:hover { color: var(--text-1); background: var(--bg-3); }
.nav-item.active { color: var(--text-1); background: var(--bg-3); }
.nav-item.active::before {
  content: ''; position: absolute; left: -2px; top: 8px; bottom: 8px; width: 3px;
  background: var(--brand); border-radius: 0 4px 4px 0;
  box-shadow: 0 0 12px rgba(var(--brand-glow) / .6);
}
.nav-item .ico { width: 18px; text-align: center; font-size: 14px; color: inherit; }
.nav-item.active .ico { color: var(--brand-soft); }

/* ---------- Logo mark ---------- */
.logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--grad-brand);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 14px;
  box-shadow: 0 8px 24px -10px rgba(var(--brand-glow) / .55), 0 1px 0 0 rgba(255,255,255,.18) inset;
}
.logo-text { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- Charts ---------- */
.chart-box { position: relative; height: 280px; }
.chart-box.tall { height: 320px; }

/* ---------- Skeletons ---------- */
.skeleton {
  position: relative; overflow: hidden;
  background: var(--bg-3);
  border-radius: var(--r-sm);
}
.skeleton::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.06), transparent);
  transform: translateX(-100%);
  animation: shimmer 1.4s linear infinite;
}
html:not(.dark) .skeleton::after { background: linear-gradient(90deg, transparent, rgba(15,15,20,.08), transparent); }
@keyframes shimmer { to { transform: translateX(100%); } }

/* ---------- Toasts ---------- */
.toast {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  min-width: 280px; max-width: 380px;
  background: var(--bg-3);
  color: var(--text-1);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-base);
  animation: toast-in .25s var(--ease-out) both;
}
.toast .ti { width: 24px; height: 24px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 12px; flex-shrink: 0; }
.toast.success .ti { background: rgba(16,185,129,.16); color: #34d399; }
.toast.error .ti { background: rgba(239,68,68,.16); color: #fca5a5; }
.toast.info  .ti { background: rgba(var(--brand-glow) / .18); color: var(--brand-soft); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateX(20px); } }

/* ---------- Modal ---------- */
.modal-bg {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fade-in var(--dur-mid) var(--ease-out);
}
.modal {
  position: fixed; inset: 0; z-index: 91;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-4);
}
.modal-card {
  width: 100%; max-width: 560px; max-height: 90vh; overflow: auto;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-2xl);
  box-shadow: var(--shadow-lg);
  animation: modal-in .3s var(--ease-out) both;
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-6) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--line-1);
}
.modal-body { padding: var(--space-6); }
.modal-foot {
  display: flex; align-items: center; justify-content: flex-end; gap: var(--space-3);
  padding: var(--space-4) var(--space-6) var(--space-6);
  border-top: 1px solid var(--line-1);
}
@keyframes modal-in { from { opacity: 0; transform: translateY(12px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Page transitions ---------- */
.page-enter { animation: page-enter .32s var(--ease-out) both; }
@keyframes page-enter { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- Calendar ---------- */
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: var(--space-2); }
.cal-head { font-size: var(--text-xs); font-weight: 600; color: var(--text-4); text-transform: uppercase; letter-spacing: var(--tr-wide); text-align: center; padding: 0 0 var(--space-2); }
.cal-day {
  aspect-ratio: 1/1; min-height: 38px;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-3);
  color: var(--text-3);
  font-size: var(--text-sm); font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.cal-day:hover { transform: translateY(-1px); border-color: var(--line-3); }
.cal-day.active {
  background: var(--grad-brand); color: #fff; font-weight: 600;
  box-shadow: 0 6px 18px -6px rgba(var(--brand-glow) / .55);
}
.cal-day.today { border-color: var(--brand); }
.cal-day.empty { background: transparent; cursor: default; pointer-events: none; }

/* ---------- Scrollbars ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: var(--r-pill); border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: var(--line-3); background-clip: padding-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- Divider ---------- */
.divider { height: 1px; background: var(--line-1); }
.divider-strong { height: 1px; background: var(--line-2); }

/* ---------- Tables / data rows ---------- */
.row {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  transition: background var(--dur-fast) var(--ease-out);
}
.row + .row { border-top: 1px solid var(--line-1); }
.row:hover { background: var(--bg-3); }
.row-clickable { cursor: pointer; }

/* ---------- Avatar ---------- */
.avatar {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--grad-brand);
  color: #fff; font-weight: 700; font-size: var(--text-sm);
  display: inline-flex; align-items: center; justify-content: center;
  letter-spacing: 0;
}
.avatar-sm { width: 28px; height: 28px; font-size: var(--text-xs); border-radius: 8px; }
.avatar-lg { width: 48px; height: 48px; font-size: var(--text-md); border-radius: 12px; }

/* ---------- Stat tile (dashboard) ---------- */
.stat {
  position: relative;
  padding: var(--space-5) var(--space-5);
  border-radius: var(--r-xl);
  background: var(--bg-2);
  border: 1px solid var(--line-1);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--dur-mid) var(--ease-out), border-color var(--dur-mid) var(--ease-out), box-shadow var(--dur-mid) var(--ease-out);
}
.stat:hover { transform: translateY(-2px); border-color: var(--line-2); box-shadow: var(--shadow-lg); }
.stat .glow {
  position: absolute; inset: -40% -20% auto auto; width: 220px; height: 220px;
  filter: blur(50px); opacity: .55; border-radius: 50%; pointer-events: none;
}
.stat .ico-tile {
  width: 32px; height: 32px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-3); border: 1px solid var(--line-2);
  font-size: 13px;
}

/* ---------- Misc tokens ---------- */
.kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px; padding: 2px 6px; border-radius: 6px;
  background: var(--bg-3); border: 1px solid var(--line-2); color: var(--text-3);
}

/* ---------- Utility ---------- */
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-gap-2 { gap: var(--space-2); } .row-gap-3 { gap: var(--space-3); } .row-gap-4 { gap: var(--space-4); }
.flex { display: flex; } .inline-flex { display: inline-flex; }
.items-center { align-items: center; } .items-end { align-items: flex-end; } .items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; } .justify-center { justify-content: center; } .justify-end { justify-content: flex-end; }
.flex-1 { flex: 1; } .flex-wrap { flex-wrap: wrap; } .flex-col { flex-direction: column; }
.shrink-0 { flex-shrink: 0; }
.text-right { text-align: right; } .text-center { text-align: center; }
.w-full { width: 100%; }
.relative { position: relative; }
.gap-2 { gap: var(--space-2); } .gap-3 { gap: var(--space-3); } .gap-4 { gap: var(--space-4); } .gap-5 { gap: var(--space-5); } .gap-6 { gap: var(--space-6); }
.mt-2 { margin-top: var(--space-2); } .mt-3 { margin-top: var(--space-3); } .mt-4 { margin-top: var(--space-4); } .mt-5 { margin-top: var(--space-5); } .mt-6 { margin-top: var(--space-6); } .mt-7 { margin-top: var(--space-7); } .mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); } .mb-3 { margin-bottom: var(--space-3); } .mb-4 { margin-bottom: var(--space-4); } .mb-5 { margin-bottom: var(--space-5); } .mb-6 { margin-bottom: var(--space-6); }
.p-4 { padding: var(--space-4); } .p-5 { padding: var(--space-5); } .p-6 { padding: var(--space-6); } .p-7 { padding: var(--space-7); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.min-w-0 { min-width: 0; }

/* Grid helpers */
.grid { display: grid; }
.gtc-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.gtc-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.gtc-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 1024px) {
  .gtc-md-1 { grid-template-columns: 1fr; }
  .gtc-md-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 640px) {
  .gtc-sm-1 { grid-template-columns: 1fr; }
  .gtc-sm-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

/* ---------- Responsive visibility helpers ---------- */
.show-md, .desktop-only { display: none; }
.show-sm, .mobile-only { display: block; }
@media (min-width: 900px) {
  .show-md, .desktop-only { display: block; }
  .show-sm, .mobile-only { display: none !important; }
}
/* Inline-flex variants (for use inside flex/grid layouts) */
.show-md-flex { display: none; }
.show-sm-flex { display: flex; }
@media (min-width: 900px) {
  .show-md-flex { display: flex; }
  .show-sm-flex { display: none !important; }
}

/* App shell — mobile-first column, desktop adds left rail */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; min-height: 100dvh; }
@media (min-width: 900px) {
  .app-shell { flex-direction: row; }
}
.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

/* Desktop sidebar — hidden on mobile entirely */
.sidebar { display: none; }
@media (min-width: 900px) {
  .sidebar {
    display: flex; flex-direction: column;
    width: 248px; flex-shrink: 0;
    background: var(--bg-1);
    border-right: 1px solid var(--line-1);
    position: sticky; top: 0; height: 100vh;
    padding: var(--space-6) var(--space-3) var(--space-4);
  }
}
.sidebar-head { display: flex; align-items: center; gap: var(--space-3); padding: 0 var(--space-3) var(--space-7); }
.sidebar-foot { margin-top: auto; padding-top: var(--space-4); border-top: 1px solid var(--line-1); }

/* ---------- App header (sticky, per page) ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(10,10,14,.78);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line-1);
  padding: calc(env(safe-area-inset-top, 0px) + var(--space-3)) var(--space-4) var(--space-3);
  display: flex; align-items: center; gap: var(--space-3);
  min-height: calc(env(safe-area-inset-top, 0px) + 56px);
}
html:not(.dark) .app-header { background: rgba(255,255,255,.82); }
.app-header .ah-title {
  flex: 1; min-width: 0;
  font-size: 17px; font-weight: 700; letter-spacing: -0.01em; color: var(--text-1);
  line-height: 1.2;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.app-header .ah-eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: var(--tr-wide); text-transform: uppercase;
  color: var(--text-3); margin-bottom: 2px;
}
.app-header .ah-actions { display: flex; align-items: center; gap: var(--space-2); }
.app-header .ah-icon-btn {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-2); border: 1px solid var(--line-1);
  color: var(--text-1); border-radius: 12px; cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.app-header .ah-icon-btn:hover { background: var(--bg-3); }
.app-header .ah-icon-btn:active { transform: scale(.96); }
.app-header .ah-icon-btn.primary { background: var(--grad-brand); border-color: transparent; color: #fff; box-shadow: 0 8px 22px -10px rgba(var(--brand-glow) / .55); }

/* Circular avatar in top-left (used on Home) → opens Profile */
.app-header .ah-avatar {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--grad-brand);
  color: #fff;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -.01em;
  box-shadow: 0 6px 18px -8px rgba(var(--brand-glow) / .5), 0 0 0 2px var(--bg-1);
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.app-header .ah-avatar:hover { transform: scale(1.04); box-shadow: 0 10px 22px -8px rgba(var(--brand-glow) / .65), 0 0 0 2px var(--bg-1); }
.app-header .ah-avatar:active { transform: scale(.94); }

/* Larger sticky hero header (for Dashboard) */
.app-header.app-header-lg { padding-top: calc(env(safe-area-inset-top, 0px) + var(--space-4)); padding-bottom: var(--space-4); }
.app-header.app-header-lg .ah-title { font-size: 20px; }
@media (min-width: 768px) {
  .app-header { padding-left: var(--space-6); padding-right: var(--space-6); }
}

/* ---------- Bottom tab bar (mobile only) ---------- */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
  background: rgba(10,10,14,.92);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-top: 1px solid var(--line-1);
  display: grid; grid-template-columns: repeat(5, 1fr);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
  /* Avoid jank when keyboard opens on iOS */
  transform: translateZ(0);
}
html:not(.dark) .bottom-nav { background: rgba(255,255,255,.92); }
.bottom-nav-item {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  min-height: 52px;             /* thumb-friendly */
  padding: 6px 4px;
  background: none; border: 0; cursor: pointer;
  color: var(--text-3); font-size: 10px; font-weight: 600;
  letter-spacing: 0.02em;
  transition: color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.bottom-nav-item i { font-size: 18px; transition: transform var(--dur-base) var(--ease-out); }
.bottom-nav-item:active { transform: scale(.94); }
.bottom-nav-item.active { color: var(--text-1); }
.bottom-nav-item.active i {
  color: transparent;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  transform: translateY(-1px) scale(1.08);
}
.bottom-nav-item.active::before {
  content: '';
  position: absolute; top: -1px; left: 50%;
  width: 28px; height: 3px; margin-left: -14px;
  background: var(--grad-brand); border-radius: 0 0 4px 4px;
}
@media (min-width: 900px) { .bottom-nav { display: none; } }

/* Bump page content above the bottom nav (mobile) */
@media (max-width: 899.98px) {
  .app-main { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
}

/* ---------- Native-feel page transitions ---------- */
.page-anim-in   { animation: page-slide-in  var(--dur-base) var(--ease-out) both; }
.page-anim-back { animation: page-slide-back var(--dur-base) var(--ease-out) both; }
@keyframes page-slide-in {
  from { opacity: 0; transform: translate3d(14px, 0, 0); }
  to   { opacity: 1; transform: translate3d(0, 0, 0); }
}
@keyframes page-slide-back {
  from { opacity: 0; transform: translate3d(-14px, 0, 0); }
  to   { opacity: 1; transform: translate3d(0, 0, 0); }
}

/* ---------- Bottom sheet (mobile modal variant) ---------- */
@media (max-width: 767px) {
  .modal { align-items: flex-end !important; padding: 0 !important; }
  .modal-card {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 92vh !important;
    border-radius: 22px 22px 0 0 !important;
    animation: sheet-up var(--dur-base) var(--ease-out) both !important;
    padding-bottom: env(safe-area-inset-bottom) !important;
  }
  .modal-card::before {
    content: ''; display: block;
    width: 42px; height: 4px; border-radius: 2px;
    background: var(--line-3); opacity: .6;
    margin: 10px auto 4px;
  }
}
@keyframes sheet-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

/* ---------- Install prompt + offline banner ---------- */
.install-prompt {
  position: fixed;
  left: 16px; right: 16px;
  bottom: calc(76px + env(safe-area-inset-bottom));
  z-index: 50;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: 16px;
  padding: 14px 16px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow-lg);
  animation: install-up var(--dur-base) var(--ease-out) both;
}
@media (min-width: 900px) {
  .install-prompt { bottom: 24px; left: auto; right: 24px; max-width: 380px; }
}
.install-prompt .ip-icon {
  flex-shrink: 0;
  width: 40px; height: 40px; border-radius: 12px;
  background: var(--grad-brand); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 16px;
  box-shadow: 0 8px 22px -10px rgba(var(--brand-glow) / .55);
}
.install-prompt .ip-text { flex: 1; min-width: 0; }
.install-prompt .ip-title { font-weight: 600; color: var(--text-1); font-size: 14px; }
.install-prompt .ip-sub { font-size: 12px; color: var(--text-3); margin-top: 2px; }
@keyframes install-up {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

.offline-banner {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 8px);
  left: 50%; transform: translateX(-50%);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  color: var(--text-1);
  border-radius: 999px;
  padding: 6px 14px 6px 10px;
  font-size: 12px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
  box-shadow: var(--shadow-md);
  z-index: 60;
  animation: install-up var(--dur-base) var(--ease-out) both;
}
.offline-banner .od { width: 8px; height: 8px; border-radius: 50%; background: var(--warn, #f59e0b); box-shadow: 0 0 0 4px rgba(245,158,11,.18); }

/* ---------- Touch targets & momentum ---------- */
.tap { -webkit-tap-highlight-color: transparent; }
.btn, .nav-item, .bottom-nav-item, .choice, .chip, .ah-icon-btn { -webkit-tap-highlight-color: transparent; }
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.scroll-x::-webkit-scrollbar { display: none; }

/* Reposition toast host away from notch & bottom-nav */
#toast-host {
  top: calc(env(safe-area-inset-top, 0px) + 12px) !important;
  right: 12px !important;
}
@media (min-width: 900px) {
  #toast-host { right: 24px !important; top: 24px !important; }
}

/* Auth split layout */
.auth-shell {
  min-height: 100vh; display: grid; grid-template-columns: 1fr;
  align-items: center; justify-items: center;
}
@media (min-width: 1024px) {
  .auth-shell { grid-template-columns: 1.05fr 1fr; }
}

/* Locked overlay (Pro feature) */
.locked-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,14,.55), rgba(10,10,14,.78));
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  border-radius: inherit;
}
html:not(.dark) .locked-overlay { background: linear-gradient(180deg, rgba(255,255,255,.7), rgba(255,255,255,.85)); }

/* ============================================================
   Onboarding
   ============================================================ */
.onb-shell {
  min-height: 100vh; min-height: 100dvh;
  display: flex; flex-direction: column;
  position: relative; isolation: isolate;
}
.onb-bg {
  position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
}
.onb-bg::before, .onb-bg::after {
  content: ''; position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: .35;
}
.onb-bg::before { top: -10%; right: -5%; width: 520px; height: 520px; background: radial-gradient(circle, rgba(99,102,241,.55), transparent 65%); }
.onb-bg::after  { bottom: -15%; left: -10%; width: 480px; height: 480px; background: radial-gradient(circle, rgba(217,70,239,.45), transparent 65%); }
html:not(.dark) .onb-bg::before { opacity: .22; }
html:not(.dark) .onb-bg::after  { opacity: .18; }

.onb-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  gap: var(--space-4);
}
.onb-progress {
  flex: 1; max-width: 520px;
  display: flex; align-items: center; gap: var(--space-2);
}
.onb-progress-segment {
  flex: 1; height: 4px; border-radius: 999px;
  background: var(--line-1);
  position: relative; overflow: hidden;
}
.onb-progress-segment::after {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-brand);
  transform: translateX(-101%);
  transition: transform var(--dur-slow) var(--ease-out);
}
.onb-progress-segment.done::after { transform: translateX(0); }
.onb-progress-segment.current::after {
  transform: translateX(0);
  background: var(--grad-brand);
  box-shadow: 0 0 12px rgba(var(--brand-glow) / .5);
}

.onb-step-count {
  font-size: var(--text-xs); font-weight: 600;
  color: var(--text-3); letter-spacing: var(--tr-wide); text-transform: uppercase;
  white-space: nowrap;
}

.onb-stage {
  flex: 1; display: flex; align-items: center; justify-content: center;
  padding: var(--space-6) var(--space-6) var(--space-8);
}
.onb-step {
  width: 100%; max-width: 560px;
  animation: onb-in var(--dur-slow) var(--ease-out) both;
}
.onb-step.welcome { max-width: 620px; text-align: center; }
@keyframes onb-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes onb-out { to { opacity: 0; transform: translateY(-8px); } }

.onb-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-6) calc(var(--space-6) + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line-1);
  background: rgba(10,10,14,.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  gap: var(--space-4); flex-wrap: wrap;
}
html:not(.dark) .onb-footer { background: rgba(255,255,255,.55); }

/* Selectable cards (goal / experience / split) */
.choice-list { display: grid; gap: var(--space-3); }
.choice {
  position: relative;
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-5);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  cursor: pointer; text-align: left;
  transition: transform var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
  font: inherit; color: inherit; appearance: none;
}
.choice:hover { transform: translateY(-2px); border-color: var(--line-3); box-shadow: var(--shadow-md); }
.choice:focus-visible { outline: none; box-shadow: var(--ring-focus); }
.choice .choice-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-4); color: var(--text-2);
  font-size: 17px; flex-shrink: 0;
  transition: all var(--dur-fast) var(--ease-out);
}
.choice .choice-title { font-weight: 600; color: var(--text-1); font-size: var(--text-md); margin-bottom: 4px; letter-spacing: var(--tr-snug); }
.choice .choice-sub   { font-size: var(--text-sm); color: var(--text-3); line-height: var(--lh-normal); }
.choice .choice-check {
  position: absolute; top: 14px; right: 14px;
  width: 22px; height: 22px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-3); border: 1.5px solid var(--line-3);
  color: transparent; font-size: 10px;
  transition: all var(--dur-fast) var(--ease-out);
}
.choice.selected {
  border-color: var(--brand);
  background: linear-gradient(180deg, rgba(99,102,241,.10), rgba(99,102,241,.02));
  box-shadow: 0 12px 36px -18px rgba(var(--brand-glow) / .55);
}
.choice.selected .choice-icon { background: var(--grad-brand); color: #fff; box-shadow: 0 8px 22px -10px rgba(var(--brand-glow) / .55); }
.choice.selected .choice-check { background: var(--brand); border-color: var(--brand); color: #fff; }

/* Compact choice variant (for short lists like split) */
.choice-compact { padding: var(--space-4) var(--space-5); }
.choice-compact .choice-icon { width: 36px; height: 36px; border-radius: 10px; font-size: 14px; }

/* Segment toggle (kg/lb, cm/ft) */
.segment {
  display: inline-flex; padding: 4px;
  background: var(--bg-4);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  gap: 2px;
}
.segment button {
  appearance: none; border: 0; background: transparent;
  font: inherit; font-weight: 600; font-size: var(--text-sm);
  color: var(--text-3);
  padding: 6px var(--space-4); border-radius: 8px;
  cursor: pointer; min-width: 56px;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.segment button:hover { color: var(--text-1); }
.segment button.active {
  background: var(--bg-2);
  color: var(--text-1);
  box-shadow: 0 1px 2px rgba(0,0,0,.25), 0 0 0 1px var(--line-2);
}

/* Counter / chip row (days per week 1-7) */
.chip-row { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.chip {
  appearance: none; border: 1px solid var(--line-2); background: var(--bg-3);
  color: var(--text-2); font: inherit; font-weight: 600; font-size: var(--text-base);
  min-width: 48px; height: 48px; padding: 0 var(--space-3);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  display: inline-flex; align-items: center; justify-content: center;
}
.chip:hover { transform: translateY(-1px); border-color: var(--line-3); color: var(--text-1); }
.chip.active {
  background: var(--grad-brand); color: #fff; border-color: transparent;
  box-shadow: 0 8px 22px -10px rgba(var(--brand-glow) / .55);
}

/* Big heading specific to onboarding (mobile-first generous) */
.onb-heading {
  font-size: 30px; font-weight: 700; line-height: 1.1; letter-spacing: var(--tr-tight); color: var(--text-1);
}
.onb-sub { color: var(--text-3); font-size: var(--text-md); line-height: var(--lh-relaxed); margin-top: var(--space-3); max-width: 480px; }
@media (min-width: 768px) {
  .onb-heading { font-size: 38px; }
}

/* Two-column metrics grid on tablet+ */
.metrics-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 560px) {
  .metrics-grid { grid-template-columns: 1fr 1fr; }
}

/* Input + suffix unit (e.g. "75 kg") */
.input-suffix { position: relative; }
.input-suffix .suffix {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  font-size: var(--text-sm); font-weight: 600; color: var(--text-3); pointer-events: none;
  letter-spacing: var(--tr-wide); text-transform: uppercase;
}
.input-suffix .input { padding-right: 56px; }

/* Welcome step animations */
.welcome-mark {
  width: 96px; height: 96px; border-radius: 28px;
  background: var(--grad-brand);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 38px;
  box-shadow: 0 30px 60px -18px rgba(var(--brand-glow) / .55), 0 0 0 1px rgba(255,255,255,.08) inset;
  animation: welcome-pop .55s var(--ease-out) both;
}
@keyframes welcome-pop {
  0% { transform: scale(.85) translateY(8px); opacity: 0; }
  60% { transform: scale(1.05); opacity: 1; }
  100% { transform: none; }
}
.welcome-tagline { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ═══════════════════════════════════════════════════════════════
   HOME HERO (Task C v3): streak + weekly ring + PR strip
   Alive, colorful, immediate at-a-glance.
   ══════════════════════════════════════════════════════════════ */
.home-hero {
  position: relative;
  padding: 20px 22px;
  border-radius: 22px;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(232,121,249,.20), transparent 55%),
    radial-gradient(90% 90% at 0% 100%, rgba(56,189,248,.16), transparent 60%),
    linear-gradient(135deg, rgba(99,102,241,.14), rgba(139,92,246,.10) 60%, rgba(232,121,249,.08));
  border: 1px solid rgba(139,92,246,.28);
  box-shadow: 0 20px 40px -20px rgba(99,102,241,.35);
  overflow: hidden;
  margin-bottom: var(--space-5);
}
.home-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(60% 60% at 30% 20%, rgba(255,255,255,.06), transparent 70%);
  pointer-events: none;
}
.home-hero-inner {
  position: relative;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.home-hero-left { min-width: 0; flex: 1; }
.home-hero-right { flex-shrink: 0; }
.home-hero-eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: .09em;
  text-transform: uppercase; color: rgba(255,255,255,.68);
  margin-bottom: 8px;
}
:root:not(.dark) .home-hero-eyebrow { color: rgba(30,30,50,.60); }
.home-hero-streak {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  margin-bottom: 8px;
}
.home-hero-streak-num {
  font-size: 44px; font-weight: 800; letter-spacing: -.03em; line-height: 1;
  color: var(--text-1);
  background: linear-gradient(180deg, #fff, rgba(255,255,255,.82));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
:root:not(.dark) .home-hero-streak-num {
  background: linear-gradient(180deg, #1a1a2e, rgba(30,30,50,.85));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.home-hero-streak-emoji { font-size: 22px; line-height: 1; }
.home-hero-streak-unit {
  font-size: 14px; font-weight: 600; color: var(--text-2);
}
.home-hero-sub {
  font-size: 13px; color: var(--text-3); line-height: 1.5; max-width: 22em;
}
/* Weekly ring */
.home-ring { position: relative; width: 88px; height: 88px; display: grid; place-items: center; }
.home-ring svg { transform: rotate(-90deg); overflow: visible; }
.home-ring-track {
  fill: none; stroke: rgba(255,255,255,.10); stroke-width: 4;
}
:root:not(.dark) .home-ring-track { stroke: rgba(0,0,0,.08); }
.home-ring-bar {
  fill: none;
  stroke: #a78bfa;
  stroke-width: 4;
  stroke-dasharray: var(--ring-pct) 100;
  stroke-linecap: round;
  transition: stroke-dasharray var(--dur-slow) var(--ease-out);
  filter: drop-shadow(0 0 6px rgba(139,92,246,.55));
}
.home-ring-text {
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center;
}
.home-ring-num {
  font-size: 20px; font-weight: 700; color: var(--text-1); letter-spacing: -.02em; line-height: 1;
}
.home-ring-num span { font-size: 11px; font-weight: 500; color: var(--text-3); margin-left: 1px; }
.home-ring-lbl { font-size: 9.5px; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: .08em; margin-top: 3px; }

.home-hero-pr-strip {
  position: relative;
  margin-top: 16px; padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 600; color: var(--text-2);
}
:root:not(.dark) .home-hero-pr-strip { border-top-color: rgba(0,0,0,.08); }
.home-hero-pr-strip .btn-link { margin-left: auto; font-size: 12px; }

/* Entrance animation for the hero (~280ms) */
.fade-in-up { animation: fade-in-up var(--dur-slow) var(--ease-out) both; }
@keyframes fade-in-up {
  from { opacity: 0; transform: translate3d(0, 8px, 0); }
  to   { opacity: 1; transform: translate3d(0, 0, 0); }
}

@media (max-width: 480px) {
  .home-hero { padding: 18px 16px; }
  .home-hero-streak-num { font-size: 38px; }
  .home-ring { width: 74px; height: 74px; }
  .home-ring svg { width: 74px; height: 74px; }
  .home-ring-num { font-size: 17px; }
}

/* ═══════════════════════════════════════════════════════════════
   RECENT WORKOUTS — consistent card sizes (Task C v3 #4)
   ══════════════════════════════════════════════════════════════ */
.recent-workouts-list { display: flex; flex-direction: column; }
.recent-workout-row {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 20px;
  min-height: 68px;                 /* consistent row height */
  border-top: 1px solid var(--line-1);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}
.recent-workout-row:first-child { border-top: 0; }
.recent-workout-row:hover { background: var(--bg-2); }
.recent-workout-row:active { background: var(--bg-3); }
.recent-workout-row .rw-icon {
  width: 40px; height: 40px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(99,102,241,.10); color: var(--brand-soft);
  flex-shrink: 0;
}
.recent-workout-row .rw-main {
  flex: 1; min-width: 0;
}
.recent-workout-row .rw-title {
  font-weight: 600; color: var(--text-1); font-size: 14px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.recent-workout-row .rw-meta {
  font-size: 12px; color: var(--text-3); margin-top: 3px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.recent-workout-row .rw-vol {
  text-align: right; flex-shrink: 0; padding-left: 8px;
}
.recent-workout-row .rw-vol-num {
  font-weight: 700; color: var(--text-1); font-size: 14px; line-height: 1.1;
}
.recent-workout-row .rw-vol-unit {
  font-size: 10px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-4); margin-top: 3px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* Grouped equipment picker (onboarding + gym modal) */
.eq-picker { display: flex; flex-direction: column; gap: 16px; }
.eq-group-head {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-3); margin-bottom: 8px;
}
.eq-group-head i { color: var(--brand-soft); font-size: 12px; }
.eq-group-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.eq-group-chips .chip {
  font-size: 12.5px; padding: 6px 12px;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.eq-group-chips .chip:active { transform: scale(.96); }

/* Achievement unlock micro-animation */
@keyframes ach-pop {
  0% { transform: scale(.6) rotate(-8deg); opacity: 0; }
  55% { transform: scale(1.12) rotate(3deg); opacity: 1; }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}
.ach-pop { animation: ach-pop 420ms cubic-bezier(.34,1.56,.64,1) both; }
@keyframes ach-shine {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(120%); }
}
.ach-shine { position: relative; overflow: hidden; isolation: isolate; }
.ach-shine::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 40%, rgba(255,255,255,.28) 50%, transparent 60%);
  transform: translateX(-120%);
  animation: ach-shine 1.6s ease-in-out .1s 1 forwards;
  pointer-events: none;
}

/* ============================================================
 * v4 — Mobile scaling, sliders, slide-out panels
 * ============================================================ */

/* v4-1: Perfect mobile scaling
 * Cap headings on very small screens so they never blow up out of the layout.
 * We use clamp() so desktop keeps its punch while phones stay tight. */
@media (max-width: 480px) {
  :root {
    --text-4xl: clamp(26px, 8.5vw, 34px);
    --text-3xl: clamp(22px, 7vw, 28px);
    --text-2xl: clamp(20px, 6vw, 24px);
    --text-xl:  18px;
    --text-lg:  16px;
  }
  .app-header .ah-title { font-size: 16px; }
  .app-header.app-header-lg .ah-title { font-size: 18px; }
  .t-h1 { font-size: var(--text-3xl); line-height: var(--lh-tight); }
  .t-h2 { font-size: var(--text-2xl); line-height: var(--lh-snug); }
  .card-pad, .card-pad-lg { padding: 16px; }
  .modal-card { border-radius: 20px 20px 0 0 !important; }
  .modal-body { padding: 20px; }
  .modal-head { padding: 18px 20px 14px; }
  .modal-foot { padding: 12px 20px 20px; gap: 10px; }
  /* Prevent long single-word overflow */
  body, .t-body, .t-hint, .card, .card-pad, .row, .inset {
    overflow-wrap: anywhere;
    word-break: normal;
  }
  /* Bump form controls to 16px to prevent iOS zoom on focus */
  .input, .select, .textarea { font-size: 16px; }
}

/* v4-2: Fixed header/footer structure
 * Header uses sticky (already there). Bottom nav is fixed.
 * These rules make sure page content doesn't shift under either. */
body { min-height: 100dvh; }
.app-main { min-height: 100dvh; }
@supports (padding: max(0px)) {
  .bottom-nav { padding-bottom: max(6px, env(safe-area-inset-bottom)); }
}

/* v4-3: Bottom-nav alignment — evenly distributed 4 tabs
 * We inherit repeat(5, 1fr) from the base rule; when only 4 buttons exist the
 * CSS grid still auto-lays them out but leaves a phantom 5th column empty.
 * Use auto-fit / flex-basis: 0 for equal-share of exactly N children. */
.bottom-nav {
  grid-template-columns: repeat(var(--nav-cols, 4), 1fr);
}
.bottom-nav-item {
  min-width: 0;
  padding: 6px 2px;
}
.bottom-nav-item span {
  font-size: 10.5px;
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* v4-4: Premium sliders (used by workout generator + intensity + weight)
 * Track: rounded, brand-gradient fill. Thumb: 20px circle with glow ring. */
input[type="range"].it-slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 28px;
  background: transparent;
  padding: 0; margin: 6px 0;
  cursor: pointer;
  outline: none;
  --pct: 50%;
}
/* Chromium track */
input[type="range"].it-slider::-webkit-slider-runnable-track {
  height: 8px; border-radius: 999px;
  background: linear-gradient(90deg,
    #8b5cf6 0%, #6366f1 var(--pct), var(--bg-4) var(--pct), var(--bg-4) 100%);
  border: 1px solid var(--line-2);
}
input[type="range"].it-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 999px;
  background: #fff;
  border: 2px solid #6366f1;
  box-shadow: 0 4px 12px -4px rgba(99,102,241,.55), 0 0 0 2px rgba(255,255,255,.15);
  margin-top: -8px;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
input[type="range"].it-slider:active::-webkit-slider-thumb {
  transform: scale(1.14);
  box-shadow: 0 6px 18px -4px rgba(99,102,241,.75), 0 0 0 4px rgba(139,92,246,.24);
}
/* Firefox track */
input[type="range"].it-slider::-moz-range-track {
  height: 8px; border-radius: 999px; background: var(--bg-4); border: 1px solid var(--line-2);
}
input[type="range"].it-slider::-moz-range-progress {
  height: 8px; border-radius: 999px;
  background: linear-gradient(90deg, #8b5cf6 0%, #6366f1 100%);
}
input[type="range"].it-slider::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 999px;
  background: #fff; border: 2px solid #6366f1;
  box-shadow: 0 4px 12px -4px rgba(99,102,241,.55);
  cursor: pointer;
}
/* Light-mode override so thumb stays high-contrast */
html:not(.dark) input[type="range"].it-slider::-webkit-slider-thumb {
  border-color: #4f46e5;
  box-shadow: 0 4px 12px -4px rgba(79,70,229,.5), 0 0 0 2px rgba(0,0,0,.06);
}
html:not(.dark) input[type="range"].it-slider::-webkit-slider-runnable-track {
  background: linear-gradient(90deg,
    #8b5cf6 0%, #6366f1 var(--pct), #e5e7eb var(--pct), #e5e7eb 100%);
  border-color: rgba(0,0,0,.08);
}
/* Compact label under the slider */
.it-slider-meta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 6px; font-size: 12px; color: var(--text-3);
}
.it-slider-value {
  font-weight: 700; color: var(--text-1); font-variant-numeric: tabular-nums;
}

/* v4-5: Premium slide-out drawer (notifications, settings, side panels)
 * Diagonal entry (X+Y translate + slight tilt). Tap-outside closes.
 * Uses .drawer-bg (backdrop) + .drawer-panel (right sheet). */
.drawer-bg {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: drawer-bg-in var(--dur-mid) var(--ease-out) both;
}
@keyframes drawer-bg-in { from { opacity: 0; } to { opacity: 1; } }
.drawer-bg.closing { animation: drawer-bg-out var(--dur-mid) var(--ease-out) both; }
@keyframes drawer-bg-out { to { opacity: 0; } }
.drawer-panel {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 101;
  width: min(420px, 100vw);
  background: var(--bg-1);
  border-left: 1px solid var(--line-2);
  box-shadow: -20px 0 60px -20px rgba(0,0,0,.6);
  animation: drawer-in 320ms cubic-bezier(.16,.9,.2,1) both;
  display: flex; flex-direction: column;
  overflow: hidden;
}
@keyframes drawer-in {
  from { transform: translate(35px, 18px) rotate(1.2deg) scale(.98); opacity: 0; }
  55%  { opacity: 1; }
  to   { transform: translate(0, 0) rotate(0deg) scale(1); opacity: 1; }
}
.drawer-panel.closing { animation: drawer-out 260ms var(--ease-out) both; }
@keyframes drawer-out {
  to { transform: translate(40px, 24px) rotate(1.6deg) scale(.97); opacity: 0; }
}
.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
  padding: calc(env(safe-area-inset-top, 0px) + 18px) 18px 12px;
  border-bottom: 1px solid var(--line-1);
}
.drawer-title { font-size: 17px; font-weight: 700; color: var(--text-1); }
.drawer-close {
  width: 36px; height: 36px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-2); color: var(--text-2); border: 1px solid var(--line-1);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.drawer-close:hover { background: var(--bg-3); }
.drawer-close:active { transform: scale(.94); }
.drawer-body {
  flex: 1; overflow-y: auto;
  padding: 12px 16px calc(20px + env(safe-area-inset-bottom));
  -webkit-overflow-scrolling: touch;
}
.drawer-tabs {
  display: flex; gap: 4px;
  padding: 8px 16px 0;
  border-bottom: 1px solid var(--line-1);
  background: var(--bg-1);
}
.drawer-tab {
  flex: 1;
  padding: 10px 8px;
  background: transparent; border: 0; cursor: pointer;
  color: var(--text-3); font-weight: 600; font-size: 13px;
  position: relative;
  transition: color var(--dur-fast) var(--ease-out);
}
.drawer-tab.active { color: var(--text-1); }
.drawer-tab.active::after {
  content: ''; position: absolute; left: 20%; right: 20%; bottom: -1px; height: 2px;
  background: var(--grad-brand); border-radius: 2px;
}
.drawer-empty {
  text-align: center; padding: 40px 20px; color: var(--text-3);
}
.drawer-empty i { font-size: 32px; color: var(--brand-soft); opacity: .5; margin-bottom: 12px; }

/* Notification item row */
.notif-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px; border-radius: 12px;
  transition: background var(--dur-fast) var(--ease-out);
}
.notif-item + .notif-item { margin-top: 4px; }
.notif-item.unread { background: rgba(99,102,241,.06); }
.notif-item .notif-ico {
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(99,102,241,.12); color: var(--brand-soft);
}
.notif-item .notif-body { flex: 1; min-width: 0; }
.notif-item .notif-title {
  font-weight: 600; color: var(--text-1); font-size: 14px; line-height: 1.3;
  overflow: hidden; text-overflow: ellipsis;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.notif-item .notif-sub {
  font-size: 12px; color: var(--text-3); margin-top: 3px;
}
.notif-item .notif-time { font-size: 11px; color: var(--text-4); margin-top: 4px; }

/* v4-18: Confetti — for Pro upgrade celebration */
@keyframes confetti-fall {
  0%   { transform: translate3d(0, -20vh, 0) rotate(0); opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translate3d(var(--x, 20px), 105vh, 0) rotate(720deg); opacity: 0; }
}
.confetti-piece {
  position: fixed; top: 0; width: 10px; height: 14px;
  background: var(--grad-brand);
  border-radius: 2px;
  z-index: 200;
  animation: confetti-fall linear both;
  pointer-events: none;
  will-change: transform, opacity;
}

/* v4-post-onboarding tour */
.tour-bg {
  position: fixed; inset: 0; z-index: 95;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fade-in var(--dur-mid) var(--ease-out) both;
}
.tour-card {
  position: fixed; z-index: 96;
  left: 50%; bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(calc(100vw - 32px), 440px);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: 20px;
  padding: 22px 22px 18px;
  box-shadow: var(--shadow-lg);
  animation: tour-in 340ms cubic-bezier(.16,.9,.2,1) both;
}
@keyframes tour-in {
  from { transform: translateX(-50%) translateY(24px) scale(.96); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0) scale(1); opacity: 1; }
}
.tour-eyebrow {
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-3); font-weight: 700; margin-bottom: 8px;
}
.tour-title { font-size: 20px; font-weight: 700; color: var(--text-1); margin-bottom: 6px; line-height: 1.2; }
.tour-body { font-size: 14px; color: var(--text-2); line-height: 1.5; }
.tour-actions { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 18px; }
.tour-dots { display: flex; gap: 6px; }
.tour-dot {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--line-3);
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.tour-dot.active { background: var(--brand-soft); transform: scale(1.4); }

/* Minimal PR mini-card (Home) */
.pr-mini {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.pr-mini-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px; border-radius: 12px;
  background: var(--bg-3);
  min-height: 60px;
}
.pr-mini-ico {
  width: 32px; height: 32px; border-radius: 8px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(251,191,36,.15); color: #fbbf24; font-size: 13px;
}
.pr-mini-body { flex: 1; min-width: 0; }
.pr-mini-name {
  font-size: 12.5px; font-weight: 600; color: var(--text-1);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pr-mini-val {
  font-size: 11px; color: var(--text-3); margin-top: 2px;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 380px) {
  .pr-mini { grid-template-columns: 1fr; }
}

/* Workout completion card (in Workouts page) */
.completion-card {
  border: 1px solid var(--line-2);
  background: linear-gradient(135deg, rgba(99,102,241,.10), rgba(139,92,246,.05));
  border-radius: 20px;
  padding: 18px;
}
.completion-ex-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line-1);
}
.completion-ex-row:first-of-type { border-top: 0; padding-top: 0; }
.completion-check {
  width: 26px; height: 26px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 2px solid var(--line-3);
  background: transparent;
  cursor: pointer; flex-shrink: 0;
  transition: all var(--dur-fast) var(--ease-out);
}
.completion-check.done {
  background: var(--grad-brand); border-color: transparent; color: #fff;
}
.completion-check.done i { animation: ach-pop 300ms cubic-bezier(.34,1.56,.64,1) both; }
.completion-body { flex: 1; min-width: 0; }
.completion-name { font-weight: 600; color: var(--text-1); font-size: 14.5px; }
.completion-name.done { text-decoration: line-through; color: var(--text-3); }
.completion-meta { font-size: 12px; color: var(--text-3); margin-top: 3px; }