/* =============================================================
   No. 33 Cafe — QR Campaign Manager
   Style Sheet
   ============================================================= */

:root {
  --espresso:   #1C0F0A;
  --coffee:     #4A2C1A;
  --mocha:      #6F4E37;
  --latte:      #C8A882;
  --cream:      #FFF8F0;
  --amber:      #C8860A;
  --amber-dk:   #A06808;
  --amber-lt:   #FEF3C7;
  --white:      #FFFFFF;
  --text:       #1A1A1A;
  --muted:      #6B7280;
  --border:     #E5E0D8;
  --bg:         #F7F3EE;

  --success:    #059669;
  --success-bg: #ECFDF5;
  --success-bd: #A7F3D0;
  --danger:     #DC2626;
  --danger-bg:  #FEF2F2;
  --danger-bd:  #FECACA;
  --warning:    #D97706;
  --warning-bg: #FFFBEB;
  --warning-bd: #FDE68A;

  --sidebar-w:  240px;
  --r:          8px;
  --shadow:     0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 12px rgba(0,0,0,.10);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--espresso);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-brand {
  padding: 1.375rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  flex-shrink: 0;
}
.brand-icon   { font-size: 1.5rem; display: block; margin-bottom: .3rem; }
.brand-name   { font-size: .9rem; font-weight: 700; color: var(--cream); letter-spacing: .02em; }
.brand-sub    { font-size: .65rem; color: rgba(255,255,255,.35); text-transform: uppercase; letter-spacing: .09em; margin-top: 2px; }

.sidebar-nav  { flex: 1; padding: .5rem 0; }

.nav-label {
  padding: .75rem 1.25rem .2rem;
  font-size: .62rem;
  font-weight: 600;
  color: rgba(255,255,255,.28);
  text-transform: uppercase;
  letter-spacing: .1em;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .6rem 1.25rem;
  color: rgba(255,255,255,.58);
  text-decoration: none;
  font-size: .855rem;
  border-left: 3px solid transparent;
  transition: color .13s, background .13s, border-color .13s;
}
.sidebar-nav a .icon { width: 20px; text-align: center; font-size: 1rem; flex-shrink: 0; }
.sidebar-nav a:hover  { color: #fff; background: rgba(255,255,255,.06); }
.sidebar-nav a.active { color: #fff; background: rgba(200,134,10,.18); border-left-color: var(--amber); }

.sidebar-footer {
  padding: .875rem 1.25rem;
  border-top: 1px solid rgba(255,255,255,.08);
  flex-shrink: 0;
}
.sidebar-footer a {
  display: flex; align-items: center; gap: .5rem;
  color: rgba(255,255,255,.38); text-decoration: none;
  font-size: .8rem; transition: color .13s;
}
.sidebar-footer a:hover { color: rgba(255,255,255,.7); }

/* ── Main layout ─────────────────────────────────────────── */
.main-wrap {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: 58px;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
  flex-shrink: 0;
}
.topbar-title { font-size: .95rem; font-weight: 600; }
.topbar-meta  { font-size: .8rem; color: var(--muted); }

.page { flex: 1; padding: 1.75rem 2rem; max-width: 1280px; width: 100%; }

/* ── Stats grid ──────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.375rem;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--amber);
}
.stat-label { font-size: .68rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: .4rem; }
.stat-value { font-size: 2.1rem; font-weight: 700; color: var(--espresso); line-height: 1; }
.stat-sub   { font-size: .72rem; color: var(--muted); margin-top: .25rem; }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .875rem 1.375rem;
  border-bottom: 1px solid var(--border);
  gap: .75rem;
}
.card-title { font-size: .88rem; font-weight: 600; }
.card-body  { padding: 1.375rem; }

/* ── Tables ──────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table       { width: 100%; border-collapse: collapse; }
th {
  padding: .55rem 1rem;
  text-align: left;
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: .72rem 1rem;
  font-size: .855rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td      { background: var(--cream); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .375rem;
  padding: .5rem 1rem;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: .855rem;
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: background .13s, border-color .13s, color .13s;
  white-space: nowrap;
  user-select: none;
}
.btn:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
.btn:disabled      { opacity: .5; cursor: not-allowed; pointer-events: none; }

.btn-primary  { background: var(--amber);   color: #fff; border-color: var(--amber);   }
.btn-primary:hover  { background: var(--amber-dk); border-color: var(--amber-dk); }
.btn-secondary{ background: var(--white);   color: var(--text); border-color: var(--border); }
.btn-secondary:hover{ background: var(--bg); }
.btn-danger   { background: var(--danger);  color: #fff; border-color: var(--danger);  }
.btn-danger:hover   { background: #B91C1C; border-color: #B91C1C; }

.btn-sm { padding: .28rem .6rem; font-size: .78rem; }

/* ── Forms ───────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.form-group { margin-bottom: .875rem; }

.form-label {
  display: block;
  font-size: .8rem;
  font-weight: 500;
  margin-bottom: .35rem;
}
.form-label .req { color: var(--danger); margin-left: 2px; }

.form-control {
  display: block;
  width: 100%;
  padding: .535rem .875rem;
  font-size: .855rem;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color .13s, box-shadow .13s;
  appearance: none;
}
.form-control:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(200,134,10,.12);
}
.form-control::placeholder { color: #BBB7B0; }
.form-hint { font-size: .72rem; color: var(--muted); margin-top: .3rem; }

/* ── Alerts ──────────────────────────────────────────────── */
.alert {
  padding: .8rem 1rem;
  border-radius: var(--r);
  font-size: .855rem;
  margin-bottom: 1.25rem;
  border: 1px solid transparent;
}
.alert-success { background: var(--success-bg); border-color: var(--success-bd); color: #065F46; }
.alert-error   { background: var(--danger-bg);  border-color: var(--danger-bd);  color: #991B1B; }
.alert-warning { background: var(--warning-bg); border-color: var(--warning-bd); color: #92400E; }
.alert-info    { background: #EFF6FF; border-color: #BFDBFE; color: #1E40AF; }

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: .18rem .48rem;
  border-radius: 9999px;
  font-size: .67rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; white-space: nowrap;
}
.badge-green  { background: #D1FAE5; color: #065F46; }
.badge-red    { background: #FEE2E2; color: #991B1B; }
.badge-muted  { background: var(--bg); color: var(--muted); border: 1px solid var(--border); }

/* ── QR grid ─────────────────────────────────────────────── */
.qr-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.25rem;
}
.qr-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.125rem;
  text-align: center;
  transition: box-shadow .15s;
}
.qr-card:hover { box-shadow: var(--shadow-md); }

.qr-canvas { display: block; margin: 0 auto .75rem; border: 1px solid var(--border); border-radius: 4px; }
.qr-name   { font-weight: 600; font-size: .9rem; }
.qr-uid    { font-family: monospace; font-size: .72rem; color: var(--muted); margin-top: 2px; }
.qr-scans  { font-size: .72rem; color: var(--muted); margin-top: 3px; }

.qr-url {
  font-family: monospace;
  font-size: .6rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .32rem .5rem;
  word-break: break-all;
  color: var(--mocha);
  margin: .6rem 0 .5rem;
  text-align: left;
}
.qr-actions { display: flex; gap: .4rem; justify-content: center; }

/* ── Empty state ─────────────────────────────────────────── */
.empty {
  padding: 3rem 2rem;
  text-align: center;
  color: var(--muted);
}
.empty-icon { font-size: 2.5rem; opacity: .4; margin-bottom: .6rem; }
.empty h3   { font-size: .92rem; color: var(--text); margin-bottom: .3rem; }
.empty p    { font-size: .84rem; }

/* ── Login page ──────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  background: var(--espresso);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.login-page::after {
  content: '☕';
  position: fixed;
  font-size: 22rem;
  right: -2rem; bottom: -3rem;
  opacity: .04;
  pointer-events: none;
  line-height: 1;
}
.login-box {
  background: var(--white);
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 390px;
  box-shadow: 0 25px 50px rgba(0,0,0,.32);
  position: relative;
  z-index: 1;
}
.login-brand { text-align: center; margin-bottom: 2rem; }
.login-brand .li { font-size: 2.5rem; display: block; margin-bottom: .6rem; }
.login-brand h1  { font-size: 1.3rem; font-weight: 700; color: var(--espresso); }
.login-brand p   { font-size: .8rem; color: var(--muted); margin-top: 3px; }

/* ── Toast notification ───────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 1.5rem; right: 1.5rem;
  background: var(--espresso);
  color: #fff;
  padding: .7rem 1.1rem;
  border-radius: var(--r);
  font-size: .855rem;
  box-shadow: var(--shadow-md);
  z-index: 9999;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
#toast.show { opacity: 1; transform: translateY(0); }

/* ── Misc helpers ────────────────────────────────────────── */
a             { color: var(--amber); text-decoration: none; }
a:hover       { text-decoration: underline; }
code {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 3px; padding: .1em .35em;
  font-family: monospace; font-size: .84em; color: var(--mocha);
}
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
.gap-sm       { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.mt-1         { margin-top: .5rem; }
.mb-1         { margin-bottom: .5rem; }
.text-muted   { color: var(--muted); }
.text-sm      { font-size: .8rem; }

/* ── Print ───────────────────────────────────────────────── */
@media print {
  .sidebar, .topbar, .btn, .qr-actions, .qr-url,
  .card-header a, .page-actions, .alert { display: none !important; }
  .main-wrap { margin-left: 0 !important; }
  .qr-grid   { grid-template-columns: repeat(3,1fr) !important; gap: .5rem !important; }
  .qr-card   { break-inside: avoid; border: 1px solid #ccc; }
  .page      { padding: 0; }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 860px) {
  :root { --sidebar-w: 60px; }
  .sidebar-brand h1, .sidebar-brand p, .brand-sub,
  .sidebar-nav a span:not(.icon), .nav-label,
  .sidebar-footer span { display: none; }
  .sidebar-nav a    { justify-content: center; padding: .7rem; gap: 0; }
  .sidebar-footer a { justify-content: center; }
}
@media (max-width: 580px) {
  .form-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .page       { padding: 1rem; }
  .topbar     { padding: 0 1rem; }
}