:root {
  --bg: #0f1115;
  --surface: #151923;
  --surface-2: #1b2130;
  --text: #e6e9f2;
  --muted: #a8afc3;
  --primary: #6ea8fe;
  --primary-600: #5a8fe0;
  --danger: #ff6b6b;
  --success: #4ad295;
  --warning: #ffd166;
  --border: #243049;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Cairo', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 80% -10%, #182033 0%, var(--bg) 60%);
  color: var(--text);
}

.app-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  background: rgba(15,17,21,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.top-nav { position: sticky; top: 56px; z-index: 9; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; background: rgba(15,17,21,0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); padding: 8px 16px; }
.tn-item { background: #0f1422; color: var(--text); border: 1px solid var(--border); border-radius: 12px; padding: 10px; cursor: pointer; }
.tn-item.active { border-color: var(--primary); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo { font-size: 22px; }
.brand h1 { font-size: 20px; margin: 0; font-weight: 700; }

.header-actions { display: flex; gap: 10px; align-items: center; }
.file-label { position: relative; overflow: hidden; }
.file-label input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.container { max-width: 1200px; margin: 24px auto; padding: 0 16px; }

.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 18px;
}
.card h2 { margin-top: 0; font-size: 18px; }

.view { display: none; }
.view.active { display: block; }

.grid.two-cols { display: grid; grid-template-columns: 1fr 1.1fr; gap: 18px; }
.grid.three-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

.profile-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.profile-grid .field { display: flex; flex-direction: column; gap: 6px; }
.profile-grid .actions { grid-column: 1 / -1; margin-top: 6px; }
.macros-row { display: flex; align-items: center; gap: 10px; }
.macros-row .sep { color: var(--muted); }
.hidden { display: none !important; }

label { color: var(--muted); font-size: 12px; }
input, select {
  background: #0f1422;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  outline: none;
}
input::placeholder { color: #7f8aa8; }
input[type="number"] { text-align: center; }

.btn {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0f1422;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.08s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); border-color: #39507b; }
.btn.primary { background: linear-gradient(180deg, var(--primary) 0%, var(--primary-600) 100%); color: #0b1020; border-color: transparent; font-weight: 700; }
.btn.secondary { background: #12192a; }
.btn.danger { background: #21131a; border-color: #4e2330; color: #ff9aa8; }
.btn.tiny { padding: 6px 10px; font-size: 12px; }

.icon-btn { background: #0f1422; border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 8px 10px; cursor: pointer; }
.icon-btn:hover { border-color: #39507b; }

.targets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 10px; }
.targets.big .target { padding: 16px; }
.target { background: #0f1422; border: 1px solid var(--border); border-radius: 10px; padding: 10px; display: flex; align-items: center; justify-content: space-between; }
.target span { color: var(--muted); }

.calendar-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.calendar {
  display: grid; gap: 8px;
  grid-template-columns: repeat(7, 1fr);
}
.day-name, .day-cell {
  background: #0f1422;
  border: 1px solid var(--border);
  min-height: 74px;
  border-radius: 10px;
  padding: 8px;
}
.day-name { display: flex; align-items: center; justify-content: center; color: var(--muted); min-height: 40px; font-size: 12px; }
.day-cell { position: relative; cursor: pointer; overflow: hidden; }
.day-fill { position: absolute; left: 0; right: 0; bottom: 0; height: 0; background: linear-gradient(180deg, rgba(74,210,149,0.28) 0%, rgba(58,188,128,0.44) 100%); transition: height 180ms ease; }
.day-cell .num { font-weight: 700; color: var(--muted); }
.day-cell .badge { position: absolute; left: 8px; bottom: 8px; background: #12263c; border: 1px solid #284e7d; color: #93c2ff; font-size: 11px; padding: 2px 6px; border-radius: 999px; }
.day-cell.active { outline: 2px solid var(--primary); }
.day-cell.today { border-color: #3a4f7d; }

.day-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.day-summary { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.muted { color: var(--muted); }
.dot { width: 6px; height: 6px; background: #2c3957; border-radius: 50%; display: inline-block; }

.date-chip { background: #0f1422; border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 8px 12px; cursor: pointer; }
.dp-body { min-width: 360px; }
.calendar-header.small h3 { font-size: 14px; }
.calendar.dp .day-name, .calendar.dp .day-cell { min-height: 48px; }

.food-tools { display: flex; gap: 10px; margin: 10px 0; }
.food-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 12px; }
.list { display: flex; flex-direction: column; gap: 8px; }
.food-item, .log-item { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: #0f1422; border: 1px solid var(--border); border-radius: 12px; padding: 10px; }
.fi-main { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; width: 100%; }
.fi-title { font-weight: 700; }
.fi-macros { color: var(--muted); font-size: 12px; }
.fi-actions { display: flex; align-items: center; gap: 6px; }
.fi-qty { width: 84px; }
.unit { color: var(--muted); font-size: 12px; }

.li-title { font-weight: 700; }
.li-macros { color: var(--muted); font-size: 12px; }
.li-remove { border-color: #3a2a32; }
.li-remove:hover { color: var(--danger); border-color: var(--danger); }

.dialog { border: none; background: transparent; }
.dialog::backdrop { background: rgba(0,0,0,0.6); backdrop-filter: blur(2px); }
.dialog-body { background: var(--surface-2); border: 1px solid var(--border); border-radius: 14px; padding: 16px; min-width: 420px; box-shadow: var(--shadow); }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 10px; }

.settings-row { display: flex; gap: 8px; align-items: center; margin-top: 10px; flex-wrap: wrap; }

/* Simple inventory UI */
.inv-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.inv-title { font-weight: 700; }
.icon-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; }
.icon-card { background: #0f1422; border: 1px solid var(--border); border-radius: 12px; padding: 10px 10px 28px 10px; display: grid; grid-template-rows: auto auto; align-items: center; gap: 8px; cursor: pointer; position: relative; }
.icon-card:hover { border-color: #39507b; }
.icon-emoji { width: 48px; height: 48px; border-radius: 12px; background: #1a2236; display: flex; align-items: center; justify-content: center; font-size: 26px; margin: 0 auto; }
.icon-title { text-align: center; font-size: 12px; color: var(--text); }
.icon-badge { position: absolute; bottom: 0px; left: 50%; transform: translateX(-50%); background: #12263c; border: 1px solid #284e7d; color: #93c2ff; font-size: 10px; padding: 2px 8px; border-radius: 999px; white-space: nowrap; z-index: 1; }
.icon-remove { position: absolute; top: 6px; right: 6px; width: 22px; height: 22px; border-radius: 8px; border: 1px solid #3a2a32; background: #1a1116; color: #ff9aa8; display: none; align-items: center; justify-content: center; font-size: 12px; }
.icon-card.log:hover .icon-remove { display: flex; }

/* Mobile responsive */
@media (max-width: 1100px) {
  .grid.two-cols { grid-template-columns: 1fr; }
  .food-grid { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .profile-grid { grid-template-columns: 1fr 1fr; }
  .targets { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .app-header { padding: 10px 12px; }
  .brand h1 { font-size: 16px; }
  .top-nav { padding: 6px 10px; }
  .tn-item { padding: 8px; font-size: 13px; }
  .container { padding: 0 10px; margin: 12px auto; }
  .card { padding: 12px; margin-bottom: 12px; }
  .targets.big .target { padding: 12px; }
  .target { padding: 8px; font-size: 13px; }
  .day-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .day-summary { font-size: 13px; }
  .date-chip { padding: 6px 10px; font-size: 13px; }
  .btn { padding: 8px 12px; font-size: 13px; }
  .btn.tiny { padding: 5px 8px; font-size: 11px; }
  .calendar { gap: 8px; }
  .day-cell, .day-name { min-height: 70px; padding: 8px 4px; }
  .day-cell { display: flex; flex-direction: column; align-items: center; justify-content: space-between; }
  .day-cell .num { font-size: 16px; margin-bottom: 4px; }
  .day-cell .badge { position: relative; left: auto; bottom: auto; transform: none; font-size: 9px; padding: 2px 6px; margin-top: 4px; width: fit-content; }
  .day-name { font-size: 11px; }
  .food-item, .log-item { padding: 8px; gap: 8px; }
  .fi-qty { width: 70px; font-size: 13px; }
  .icon-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: 8px; }
  .icon-card { padding: 8px 8px 26px 8px; }
  .icon-emoji { width: 40px; height: 40px; font-size: 22px; }
  .icon-title { font-size: 11px; }
  .dialog-body { min-width: 90vw; max-width: 90vw; padding: 12px; }
  .grid.three-cols { grid-template-columns: 1fr; }
  .macros-row { flex-wrap: wrap; }
  input, select { padding: 8px 10px; font-size: 13px; }
  .settings-row { flex-direction: column; align-items: stretch; }
  .settings-row .btn { width: 100%; }
}