/* ClubLedger – GitHub-style theme */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --canvas:        #ffffff;
  --canvas-subtle: #f6f8fa;
  --border:        #d0d7de;
  --border-muted:  #d8dee4;
  --fg:            #1f2328;
  --fg-muted:      #59636e;
  --fg-subtle:     #818b98;
  --accent:        #0969da;
  --accent-muted:  #ddf4ff;
  --success:       #1a7f37;
  --success-muted: #dafbe1;
  --danger:        #d1242f;
  --danger-muted:  #ffebe9;
  --nav-bg:        #24292f;
  --nav-text:      #f0f6fc;
  --radius:        6px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  background: var(--canvas-subtle);
  color: var(--fg);
  min-height: 100vh;
}

/* ---- Nav ---- */
nav {
  background: var(--nav-bg);
  color: var(--nav-text);
  display: flex;
  align-items: stretch;
  padding: 0 16px;
  height: 48px;
  gap: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

/* On desktop the wrapper is invisible — buttons behave as direct nav children */
.nav-tabs { display: contents; }

.brand {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-right: 16px;
  padding-right: 16px;
  border-right: 1px solid rgba(240,246,252,.15);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: center;
}

.brand::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  opacity: .85;
  flex-shrink: 0;
}

.nav-btn, .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  align-self: stretch;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: rgba(240,246,252,.65);
  cursor: pointer;
  font-size: .875rem;
  font-family: inherit;
  font-weight: 400;
  white-space: nowrap;
  text-decoration: none;
  transition: color .1s, border-color .1s, background .1s;
}

.nav-btn:hover, .nav-link:hover {
  color: var(--nav-text);
  background: rgba(177,186,196,.1);
  border-bottom-color: rgba(240,246,252,.35);
}

.nav-btn.active, .nav-link.active {
  color: #fff;
  font-weight: 600;
  border-bottom-color: #fff;
}

/* Material Symbols inside nav tabs */
.nav-icon {
  font-size: 18px;
  line-height: 1;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 20;
  transition: font-variation-settings .1s;
}
.nav-btn.active .nav-icon, .nav-link.active .nav-icon {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}

/* ---- Views ---- */
.view { max-width: 960px; margin: 24px auto; padding: 0 16px; display: flex; flex-direction: column; gap: 20px; }
.hidden { display: none !important; }

/* ---- Panel ---- */
.panel {
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.panel h2 {
  font-size: 1rem;
  font-weight: 600;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
}

/* ---- Forms ---- */
.form-row { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }

.form-row label {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--fg);
}

.form-row input,
.form-row select,
.form-row textarea {
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .875rem;
  font-family: inherit;
  background: var(--canvas);
  color: var(--fg);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  line-height: 20px;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(9,105,218,.12);
}

.form-row select { cursor: pointer; }
.form-row textarea { resize: vertical; min-height: 64px; }

.search-row { display: flex; gap: 8px; margin-bottom: 12px; }
.search-row input {
  flex: 1;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .875rem;
  font-family: inherit;
  background: var(--canvas);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.search-row input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(9,105,218,.12);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 5px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--canvas-subtle);
  color: var(--fg);
  cursor: pointer;
  font-size: .875rem;
  font-family: inherit;
  font-weight: 500;
  line-height: 20px;
  white-space: nowrap;
  transition: background .1s, border-color .1s;
  margin-right: 4px;
}
.btn:hover { background: #f3f4f6; border-color: rgba(31,35,40,.3); }

.btn-primary {
  background: #1f883d;
  color: #fff;
  border-color: rgba(31,35,40,.15);
}
.btn-primary:hover { background: #1a7f37; }

.btn-danger {
  background: #d1242f;
  color: #fff;
  border-color: rgba(31,35,40,.15);
}
.btn-danger:hover { background: #b91c28; }

/* ---- Data table ---- */
.data-table { width: 100%; border-collapse: collapse; font-size: .8125rem; margin-top: 4px; }
.data-table th {
  background: var(--canvas-subtle);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--fg-muted);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-muted); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--canvas-subtle); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.balance-pos { color: var(--success); font-weight: 600; }
.balance-neg { color: var(--danger); font-weight: 600; }

/* ---- Member pick list ---- */
.member-pick-list { margin-bottom: 12px; display: flex; flex-direction: column; gap: 1px; }

.member-pick-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .1s, border-color .1s;
}
.member-pick-item:hover { background: var(--canvas-subtle); border-color: var(--accent); }
.member-pick-name { font-weight: 600; font-size: .875rem; }
.member-pick-sub { font-size: .75rem; color: var(--fg-muted); }

/* ---- Selected member box ---- */
.selected-member-box {
  background: var(--accent-muted);
  border: 1px solid #b6e3ff;
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: .875rem;
  color: var(--fg);
}
.selected-member-box strong { font-size: .9375rem; font-weight: 600; }

/* ---- Cashier dual-action panels ---- */
.cashier-action-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 10px;
  background: var(--canvas);
}
.cashier-action-panel h3 {
  margin: 0 0 12px;
  font-size: .6875rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ---- Product results ---- */
.product-results { margin-bottom: 12px; }
.product-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 4px;
  cursor: pointer;
  font-size: .875rem;
  transition: background .1s;
}
.product-item:hover { background: var(--canvas-subtle); border-color: var(--accent); }
.product-price { font-weight: 700; color: var(--accent); }

/* ---- Staff chips ---- */
.staff-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.staff-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--canvas-subtle);
  border: 1px solid var(--border);
  border-radius: 2em;
  padding: 2px 8px 2px 10px;
  font-size: .8125rem;
  color: var(--fg);
}
.chip-del {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--fg-subtle);
  font-size: .9rem;
  line-height: 1;
  padding: 0 1px;
}
.chip-del:hover { color: var(--danger); }

/* ---- Select / dropdown (standalone, outside form-row) ---- */
select {
  font-family: inherit;
}

/* ---- Row action buttons ---- */
.row-actions { white-space: nowrap; }
.row-btn { padding: 3px 10px !important; font-size: .75rem !important; margin-right: 4px !important; }

/* ---- Edit modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(31,35,40,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.modal {
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 28px;
  width: 440px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 8px 24px rgba(140,149,159,.2);
}
.modal h3 {
  font-size: 1rem;
  font-weight: 600;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.modal-actions { display: flex; gap: 8px; margin-top: 16px; }

/* ---- Messages / flash ---- */
.msg {
  margin-top: 10px;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: .8125rem;
  border: 1px solid transparent;
}
.msg:empty { display: none; }
.msg.ok  { background: var(--success-muted); color: #0a3622; border-color: #a4e6b8; }
.msg.err { background: var(--danger-muted);  color: #67060c; border-color: #ffcec7; }

/* ---- Login overlay ---- */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--canvas-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}
.login-card {
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 40px;
  width: 360px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 8px 24px rgba(140,149,159,.2);
}
.login-card h1 {
  font-size: 1.25rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 4px;
}
.login-sub { text-align: center; color: var(--fg-muted); font-size: .8125rem; margin-bottom: 20px; }

/* ---- Nav right (user + logout) ---- */
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; align-self: center; }
.nav-user { color: rgba(240,246,252,.7); font-size: .8125rem; }
.nav-logout {
  background: transparent;
  border: 1px solid rgba(240,246,252,.3);
  color: rgba(240,246,252,.7);
  padding: 3px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .8125rem;
  font-family: inherit;
  transition: color .1s, border-color .1s;
}
.nav-logout:hover { color: var(--nav-text); border-color: rgba(240,246,252,.5); }

/* ---- Admin form extras ---- */
.label-hint { font-weight: 400; color: var(--fg-subtle); font-size: .75rem; }
.form-row-check { flex-direction: row !important; align-items: center; gap: 8px; }
.form-row-check label { font-weight: 400; color: var(--fg); font-size: .875rem; }
.panel-divider { border: none; border-top: 1px solid var(--border); margin: 18px 0; }
.sub-heading { font-size: .875rem; font-weight: 600; margin-bottom: 12px; color: var(--fg); }

/* ---- PIN confirmation overlay ---- */
.pin-overlay {
  position: fixed;
  inset: 0;
  background: var(--canvas);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 150;
  padding: 24px 16px;
}

.pin-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: 380px;
}

.pin-charge-amount {
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 700;
  color: var(--fg);
  text-align: center;
  line-height: 1.15;
}

.pin-member-name {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  text-align: center;
}

.pin-instruction {
  font-size: .875rem;
  color: var(--fg-subtle);
  text-align: center;
  margin-top: 8px;
}

.pin-input {
  width: 100%;
  max-width: 260px;
  padding: 14px 16px;
  font-size: 1.5rem;
  letter-spacing: .25em;
  text-align: center;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  background: var(--canvas);
  color: var(--fg);
  transition: border-color .15s, box-shadow .15s;
}
.pin-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(9,105,218,.15);
}

.pin-actions {
  display: flex;
  gap: 12px;
  width: 100%;
  max-width: 260px;
}

.pin-cancel-btn {
  flex: 1;
}

.pin-ok-btn {
  flex: 2;
  font-size: 1rem;
  padding: 10px 0;
}

/* ---- Hamburger button (hidden on desktop) ---- */
.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(240,246,252,.3);
  border-radius: var(--radius);
  color: var(--nav-text);
  width: 34px;
  height: 30px;
  cursor: pointer;
  padding: 0;
  transition: background .1s;
}
.hamburger:hover { background: rgba(177,186,196,.15); }
.hamburger .material-symbols-outlined { font-size: 20px; line-height: 1; }

/* ---- Mobile nav ---- */
@media (max-width: 640px) {
  /* Hide desktop tabs, show hamburger */
  .nav-tabs {
    display: none;
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    flex-direction: column;
    padding: 6px 0 10px;
    border-bottom: 1px solid rgba(240,246,252,.12);
    box-shadow: 0 8px 16px rgba(0,0,0,.35);
    z-index: 99;
  }
  .nav-tabs.open { display: flex; }

  .hamburger { display: inline-flex; }

  /* Hide username text to save space */
  .nav-user { display: none; }

  /* Mobile tab items: full-width rows with left accent border */
  .nav-btn, .nav-link {
    align-self: auto;
    width: 100%;
    padding: 13px 20px;
    font-size: .9375rem;
    border-bottom: none;
    border-left: 3px solid transparent;
    border-radius: 0;
    justify-content: flex-start;
    gap: 12px;
  }
  .nav-btn:hover, .nav-link:hover {
    border-bottom-color: transparent;
    border-left-color: rgba(240,246,252,.35);
    background: rgba(177,186,196,.12);
  }
  .nav-btn.active, .nav-link.active {
    border-bottom-color: transparent;
    border-left-color: #fff;
    background: rgba(177,186,196,.12);
  }
  .nav-icon { font-size: 20px; }
}