/* =====================================================================
   AuditMe - mobile-first styles
   ===================================================================== */

:root{
  --bg:#f4f6fa;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --border:#e4e8f0;
  --text:#101828;
  --muted:#667085;
  --brand:#2563eb;
  --brand-ink:#1d4ed8;
  --income:#059669;
  --income-bg:#ecfdf5;
  --expense:#dc2626;
  --expense-bg:#fef2f2;
  --warn:#b45309;
  --warn-bg:#fffbeb;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.1);
  --shadow-lg:0 12px 32px rgba(16,24,40,.18);
  --nav-h:64px;
  --safe-b:env(safe-area-inset-bottom, 0px);
  --font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0f1420;
    --surface:#171d2b;
    --surface-2:#1e2637;
    --border:#2a3348;
    --text:#e8ecf5;
    --muted:#94a1b8;
    --brand:#5b8cff;
    --brand-ink:#7ba3ff;
    --income:#34d399;
    --income-bg:#0d2b22;
    --expense:#f87171;
    --expense-bg:#2d1517;
    --warn:#fbbf24;
    --warn-bg:#2b2312;
    --shadow:0 1px 2px rgba(0,0,0,.4);
    --shadow-lg:0 12px 32px rgba(0,0,0,.55);
  }
}

*,*::before,*::after{box-sizing:border-box}

html{ -webkit-text-size-adjust:100% }

body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(var(--nav-h) + var(--safe-b) + 12px);
  overscroll-behavior-y:contain;
}

h1,h2,h3{margin:0;font-weight:650;letter-spacing:-.01em}
a{color:var(--brand);text-decoration:none}

/* ---------- Layout ---------- */
.app{max-width:640px;margin:0 auto;padding:0 14px}

.topbar{
  position:sticky; top:0; z-index:40;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:calc(env(safe-area-inset-top,0px) + 12px) 14px 12px;
  display:flex; align-items:center; gap:10px;
}
.topbar .brand{font-size:17px;font-weight:700;flex:1;min-width:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .sub{display:block;font-size:11px;font-weight:500;color:var(--muted)}

.icon-btn{
  width:40px;height:40px;flex:none;
  display:grid;place-items:center;
  border:1px solid var(--border);border-radius:11px;
  background:var(--surface-2);color:var(--text);
  font-size:17px;cursor:pointer;
  -webkit-tap-highlight-color:transparent;
}
.icon-btn:active{transform:scale(.94)}

/* ---------- Views ---------- */
.view{display:none;padding-top:14px;animation:fade .18s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

.section-title{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;margin:20px 0 10px;
}
.section-title h2{font-size:14px;text-transform:uppercase;
  letter-spacing:.05em;color:var(--muted);font-weight:650}
.section-title .link{font-size:13px;font-weight:600;background:none;
  border:0;color:var(--brand);cursor:pointer;padding:4px}

/* ---------- Cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);
  padding:16px;margin-bottom:12px;
}

.hero{
  background:linear-gradient(135deg,var(--brand),var(--brand-ink));
  color:#fff;border:0;padding:20px;
}
.hero .label{font-size:12px;opacity:.85;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em}
.hero .value{font-size:34px;font-weight:750;letter-spacing:-.02em;
  margin:6px 0 2px;font-variant-numeric:tabular-nums}
.hero .note{font-size:12.5px;opacity:.9}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid-2 .card{margin:0}

.stat .label{font-size:11.5px;color:var(--muted);font-weight:650;
  text-transform:uppercase;letter-spacing:.04em}
.stat .value{font-size:21px;font-weight:700;margin-top:3px;
  font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat .value.in{color:var(--income)}
.stat .value.out{color:var(--expense)}
.stat .meta{font-size:11.5px;color:var(--muted);margin-top:2px}

/* ---------- Period chips ---------- */
.chips{display:flex;gap:7px;overflow-x:auto;padding:2px 0 8px;
  scrollbar-width:none;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:none;padding:11px 16px;min-height:44px;border-radius:999px;
  display:inline-flex;align-items:center;
  border:1px solid var(--border);background:var(--surface);
  color:var(--muted);font-size:13.5px;font-weight:600;cursor:pointer;
  -webkit-tap-highlight-color:transparent;white-space:nowrap;
}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- List rows ---------- */
.list{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.row{
  display:flex;align-items:center;gap:12px;
  padding:13px 14px;border-bottom:1px solid var(--border);
  cursor:pointer;-webkit-tap-highlight-color:transparent;
  background:var(--surface);
}
.row:last-child{border-bottom:0}
.row:active{background:var(--surface-2)}

.avatar{
  width:40px;height:40px;flex:none;border-radius:11px;
  display:grid;place-items:center;font-size:17px;font-weight:700;
}
.avatar.in{background:var(--income-bg);color:var(--income)}
.avatar.out{background:var(--expense-bg);color:var(--expense)}
.avatar.neutral{background:var(--surface-2);color:var(--muted);font-size:14px}

.row-main{flex:1;min-width:0}
.row-title{font-weight:600;font-size:14.5px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row-sub{font-size:12.5px;color:var(--muted);margin-top:1px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row-amt{font-weight:700;font-size:15px;flex:none;
  font-variant-numeric:tabular-nums;text-align:right}
.row-amt.in{color:var(--income)}
.row-amt.out{color:var(--expense)}
.row-amt small{display:block;font-weight:500;font-size:11px;color:var(--muted)}

.badge{
  display:inline-block;padding:2px 8px;border-radius:999px;
  font-size:10.5px;font-weight:700;text-transform:uppercase;
  letter-spacing:.04em;
}
.badge.open{background:var(--warn-bg);color:var(--warn)}
.badge.partial{background:var(--warn-bg);color:var(--warn)}
.badge.paid{background:var(--income-bg);color:var(--income)}
.badge.void{background:var(--surface-2);color:var(--muted)}
.badge.late{background:var(--expense-bg);color:var(--expense)}

/* ---------- Bars ---------- */
.bar-row{display:flex;align-items:center;gap:10px;margin-bottom:11px}
.bar-row:last-child{margin-bottom:0}
.bar-name{font-size:13px;width:88px;flex:none;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-track{flex:1;height:8px;background:var(--surface-2);
  border-radius:99px;overflow:hidden}
.bar-fill{height:100%;background:var(--brand);border-radius:99px;
  transition:width .5s cubic-bezier(.4,0,.2,1)}
.bar-val{font-size:12.5px;font-weight:650;width:74px;flex:none;
  text-align:right;font-variant-numeric:tabular-nums}

/* ---------- Trend ---------- */
.trend{display:flex;align-items:flex-end;gap:8px;height:110px;padding-top:6px}
.trend-col{flex:1;display:flex;flex-direction:column;
  align-items:center;gap:5px;min-width:0}
.trend-bars{flex:1;width:100%;display:flex;align-items:flex-end;
  justify-content:center;gap:3px}
.trend-bar{width:44%;border-radius:4px 4px 0 0;min-height:3px;
  transition:height .5s cubic-bezier(.4,0,.2,1)}
.trend-bar.in{background:var(--income)}
.trend-bar.out{background:var(--expense)}
.trend-label{font-size:10.5px;color:var(--muted);font-weight:600}

.legend{display:flex;gap:14px;justify-content:center;
  margin-top:12px;font-size:12px;color:var(--muted)}
.legend span{display:flex;align-items:center;gap:5px}
.dot{width:9px;height:9px;border-radius:3px}
.dot.in{background:var(--income)}
.dot.out{background:var(--expense)}

/* ---------- Forms ---------- */
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:650;
  color:var(--muted);margin-bottom:6px}

input,select,textarea{
  width:100%;padding:13px 14px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface);color:var(--text);
  font-size:16px; /* 16px stops iOS zooming on focus */
  font-family:inherit;
  -webkit-appearance:none;appearance:none;
}
select{
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%23667085' stroke-width='2' fill='none' stroke-linecap='round'/></svg>");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:38px;
}
textarea{min-height:76px;resize:vertical}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px color-mix(in srgb, var(--brand) 18%, transparent);
}

.amount-input{
  font-size:32px !important;font-weight:700;text-align:center;
  padding:16px !important;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}

/* Segmented income / expense switch */
.segmented{
  display:grid;grid-template-columns:1fr 1fr;gap:6px;
  background:var(--surface-2);padding:5px;
  border-radius:var(--radius-sm);border:1px solid var(--border);
}
.segmented button{
  padding:12px;border:0;border-radius:8px;background:transparent;
  color:var(--muted);font-size:14.5px;font-weight:650;cursor:pointer;
  font-family:inherit;-webkit-tap-highlight-color:transparent;
  transition:background .15s, color .15s;
}
.segmented button.active[data-kind="income"]{background:var(--income);color:#fff}
.segmented button.active[data-kind="expense"]{background:var(--expense);color:#fff}
.segmented button.active[data-kind="customer"],
.segmented button.active[data-kind="supplier"],
.segmented button.active[data-kind="invoice"],
.segmented button.active[data-kind="bill"]{background:var(--brand);color:#fff}

/* ---------- Buttons ---------- */
.btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:14px;border:0;border-radius:var(--radius-sm);
  background:var(--brand);color:#fff;font-size:15.5px;font-weight:650;
  font-family:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;
}
.btn:active{transform:scale(.985);filter:brightness(.95)}
.btn:disabled{opacity:.55;cursor:default}
.btn.secondary{background:var(--surface-2);color:var(--text);
  border:1px solid var(--border)}
.btn.danger{background:var(--expense)}
.btn.ghost{background:transparent;color:var(--expense);border:1px solid var(--border)}
.btn-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* ---------- Bottom nav ---------- */
.nav{
  position:fixed;left:0;right:0;bottom:0;z-index:50;
  height:calc(var(--nav-h) + var(--safe-b));
  padding-bottom:var(--safe-b);
  background:color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-top:1px solid var(--border);
  display:grid;grid-template-columns:repeat(5,1fr);
}
.nav button{
  border:0;background:none;cursor:pointer;font-family:inherit;
  display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:3px;color:var(--muted);
  font-size:10.5px;font-weight:600;
  -webkit-tap-highlight-color:transparent;padding:0;
}
.nav button .ic{font-size:20px;line-height:1}
.nav button.active{color:var(--brand)}

.nav .fab-slot .ic{
  width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:26px;font-weight:300;
  box-shadow:0 5px 14px color-mix(in srgb, var(--brand) 45%, transparent);
  margin-top:-16px;
}
.nav .fab-slot{color:var(--muted) !important}

/* ---------- Sheet (bottom modal) ---------- */
.sheet-backdrop{
  position:fixed;inset:0;z-index:60;
  background:rgba(16,24,40,.5);
  opacity:0;pointer-events:none;transition:opacity .22s;
}
.sheet-backdrop.open{opacity:1;pointer-events:auto}

.sheet{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--surface);
  border-radius:20px 20px 0 0;
  box-shadow:var(--shadow-lg);
  max-height:92vh;display:flex;flex-direction:column;
  padding-bottom:var(--safe-b);
  /* Kept out of the flow entirely while closed, so it never shows through. */
  visibility:hidden;
  transform:translateY(101%);
  transition:transform .28s cubic-bezier(.32,.72,0,1), visibility .28s;
}
.sheet.open{visibility:visible;transform:translateY(0)}

.sheet-head{
  padding:14px 18px 12px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;flex:none;
}
.sheet-head h3{flex:1;font-size:16.5px}
.sheet-grip{
  width:38px;height:4px;border-radius:99px;background:var(--border);
  margin:8px auto 0;flex:none;
}
.sheet-body{padding:18px;overflow-y:auto;-webkit-overflow-scrolling:touch}
.sheet-foot{padding:14px 18px 18px;border-top:1px solid var(--border);flex:none}

/* ---------- Misc ---------- */
.empty{text-align:center;padding:40px 20px;color:var(--muted)}
.empty .ic{font-size:40px;opacity:.45;margin-bottom:10px}
.empty p{margin:0;font-size:14px}

.search{position:relative;margin-bottom:12px}
.search input{padding-left:40px}
.search .ic{position:absolute;left:14px;top:50%;transform:translateY(-50%);
  color:var(--muted);font-size:15px;pointer-events:none}

.toast{
  position:fixed;left:50%;bottom:calc(var(--nav-h) + var(--safe-b) + 18px);
  transform:translate(-50%,20px);z-index:90;
  background:var(--text);color:var(--bg);
  padding:11px 18px;border-radius:11px;font-size:14px;font-weight:600;
  box-shadow:var(--shadow-lg);
  opacity:0;pointer-events:none;transition:opacity .22s, transform .22s;
  max-width:88vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.error{background:var(--expense);color:#fff}

.spinner{
  width:22px;height:22px;border-radius:50%;
  border:2.5px solid var(--border);border-top-color:var(--brand);
  animation:spin .7s linear infinite;margin:32px auto;
}
@keyframes spin{to{transform:rotate(360deg)}}

.divider{height:1px;background:var(--border);margin:16px 0}

.kv{display:flex;justify-content:space-between;gap:12px;
  padding:9px 0;border-bottom:1px solid var(--border);font-size:14px}
.kv:last-child{border-bottom:0}
.kv .k{color:var(--muted)}
.kv .v{font-weight:650;font-variant-numeric:tabular-nums;text-align:right}

/* ---------- Login ---------- */
.auth-wrap{
  min-height:100vh;min-height:100dvh;display:grid;place-items:center;
  padding:24px;
}
.auth-card{width:100%;max-width:380px}
.auth-logo{
  width:62px;height:62px;border-radius:17px;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--brand),var(--brand-ink));
  display:grid;place-items:center;font-size:29px;
  box-shadow:0 8px 22px color-mix(in srgb, var(--brand) 35%, transparent);
}
.auth-card h1{text-align:center;font-size:23px;margin-bottom:5px}
.auth-card .lead{text-align:center;color:var(--muted);
  font-size:14px;margin:0 0 22px}
.alert{
  padding:12px 14px;border-radius:var(--radius-sm);font-size:13.5px;
  margin-bottom:14px;background:var(--expense-bg);color:var(--expense);
  border:1px solid color-mix(in srgb, var(--expense) 25%, transparent);
}
.alert.ok{background:var(--income-bg);color:var(--income);
  border-color:color-mix(in srgb, var(--income) 25%, transparent)}

/* ---------- Tablet and up ---------- */
@media (min-width:700px){
  body{padding-bottom:24px}
  .app{max-width:880px;padding:0 20px}
  .nav{
    position:sticky;top:0;bottom:auto;
    max-width:880px;margin:0 auto 4px;
    height:auto;padding:6px;border-radius:0 0 var(--radius) var(--radius);
    border:1px solid var(--border);border-top:0;
  }
  .nav button{flex-direction:row;gap:7px;padding:11px;font-size:13.5px;border-radius:9px}
  .nav button .ic{font-size:16px}
  .nav .fab-slot .ic{
    width:auto;height:auto;border-radius:0;background:none;
    color:inherit;font-size:16px;box-shadow:none;margin:0;
  }
  .nav button.active{background:var(--surface-2)}
  .grid-2{grid-template-columns:repeat(4,1fr)}
  .sheet{
    left:50%;right:auto;bottom:auto;top:50%;
    transform:translate(-50%,-46%) scale(.97);
    width:min(560px,92vw);border-radius:18px;max-height:88vh;
    opacity:0;transition:opacity .2s, transform .2s, visibility .2s;
  }
  .sheet.open{transform:translate(-50%,-50%) scale(1);opacity:1}
  .sheet-grip{display:none}
  .toast{bottom:26px}
}

/* ---------- Icon and colour pickers ---------- */
.picker{
  display:flex;flex-wrap:wrap;gap:8px;
}
.pick{
  width:46px;height:46px;flex:none;
  display:grid;place-items:center;
  border:1px solid var(--border);border-radius:11px;
  background:var(--surface);color:var(--text);
  font-size:21px;cursor:pointer;font-family:inherit;
  -webkit-tap-highlight-color:transparent;
  transition:border-color .15s, transform .1s;
}
.pick:active{transform:scale(.92)}
.pick.on{border-color:var(--brand);border-width:2px;
  box-shadow:0 0 0 3px color-mix(in srgb, var(--brand) 18%, transparent)}
.pick.swatch{border-radius:50%}
.pick.swatch.on{border-color:var(--text)}

/* ---------- On / off switch ---------- */
.toggle{
  width:50px;height:30px;flex:none;padding:0;
  border:0;border-radius:99px;background:var(--border);
  cursor:pointer;position:relative;
  -webkit-tap-highlight-color:transparent;
  transition:background .2s;
}
.toggle span{
  position:absolute;top:3px;left:3px;
  width:24px;height:24px;border-radius:50%;
  background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.3);
  transition:transform .2s;
}
.toggle.on{background:var(--brand)}
.toggle.on span{transform:translateX(20px)}

/* ---------- Drag handle ---------- */
.drag-handle{
  flex:none;width:26px;text-align:center;
  color:var(--muted);font-size:17px;cursor:grab;
  touch-action:none;user-select:none;-webkit-user-select:none;
}
.drag-handle:active{cursor:grabbing}

.cat-row,.field-row{transition:opacity .15s}

/* ---------- SVG icons ---------- */
svg{display:block;flex:none}

/* Icons sitting inside a line of text */
.ic-inline{display:inline-block;vertical-align:-2px;margin-right:5px;opacity:.75}

/* Buttons that hold an icon plus a label */
.btn svg,.chip svg,.segmented button svg{flex:none}
.btn svg{margin-right:-2px}
.segmented button{display:flex;align-items:center;justify-content:center;gap:7px}
.chip{gap:6px}

/* Icon-only buttons centre their glyph */
.icon-btn svg{margin:0}

/* Row avatars hold a 20px icon */
.avatar svg{width:20px;height:20px}

/* Nav icons */
.nav button .ic{display:grid;place-items:center;line-height:0}
.nav .fab-slot .ic svg{width:24px;height:24px}

/* Search field icon */
.search .ic{display:grid;place-items:center;line-height:0}

/* Empty-state glyph */
.empty .ic{display:flex;justify-content:center;opacity:.4}
.empty .ic svg{width:40px;height:40px}

/* Drag handle dots */
.drag-handle{display:grid;place-items:center;line-height:0;opacity:.5}

/* Icon picker tiles */
.pick svg{width:22px;height:22px}

/* The login / setup logo mark */
.auth-logo svg{width:30px;height:30px}