/* ============================================================
   Dashboard stylesheet — Paidly
   Fonts: Fraunces (headings), Satoshi (body)
   Palette: warm off-white bg, amber accent, red overdue badges
   ============================================================ */

:root {
  /* Colors */
  --bg:          #FAF8F5;
  --surface:     #FFFFFF;
  --border:      #E8E4DF;
  --text-primary:#1C1917;
  --text-muted:  #78716C;
  --accent:      #D97706;   /* amber-600 */
  --accent-light:#FEF3C7;   /* amber-100 */
  --danger:      #DC2626;   /* red-600 */
  --danger-light:#FEE2E2;   /* red-100 */
  --warning:     #D97706;   /* amber-600 */
  --warning-light:#FEF3C7;
  --success:     #16A34A;
  --success-light:#DCFCE7;
  --radius:      12px;
  --shadow:      0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);

  /* Fonts */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  margin: 0;
  background: var(--bg);
  font-family: var(--font-body);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- Layout ---- */

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ---- Header ---- */

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.header-brand { display: flex; align-items: baseline; gap: 0.75rem; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ---- Alerts ---- */

.alert {
  padding: 0.875rem 1.125rem;
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
}
.alert-error   { background: var(--danger-light);   color: var(--danger);   border: 1px solid #FECACA; }
.alert-success { background: var(--success-light);  color: var(--success);  border: 1px solid #BBF7D0; }

/* ---- Summary card values ---- */

.paid-value    { color: var(--success); }
.pending-value { color: var(--warning); }
.overdue-value { color: var(--danger); }

/* ---- Summary cards ---- */

.summary-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.summary-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.summary-value {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* ---- Cards ---- */

.import-card,
.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.375rem;
  letter-spacing: -0.02em;
}

.card-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
  line-height: 1.5;
}

.card-hint code {
  font-family: 'SFMono-Regular', Consolas, monospace;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  font-size: 0.8125rem;
}

/* ---- Import form ---- */

.import-form {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.file-field {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.file-field input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.file-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.875rem;
  border: 1.5px dashed var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  background: var(--bg);
  pointer-events: none;
  transition: border-color 0.15s, background 0.15s;
}

.file-field input[type="file"]:hover + .file-label,
.file-field input[type="file"]:focus + .file-label {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

.file-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---- Table ---- */

.table-scroll { overflow-x: auto; }

.invoice-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.invoice-table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 0 0.75rem 0.75rem;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

.invoice-table th.num { text-align: right; }
.invoice-table th.actions-col { text-align: right; }

.invoice-table td {
  padding: 0.875rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.invoice-table tr:last-child td { border-bottom: none; }

.invoice-table tbody tr:hover { background: #FAFAF8; }

/* Cell types */
.client-cell { display: flex; flex-direction: column; gap: 0.1rem; }
.client-name { font-weight: 600; color: var(--text-primary); }
.client-email { font-size: 0.8125rem; color: var(--text-muted); }

.num { text-align: right; font-variant-numeric: tabular-nums; }

.amount-cell { font-weight: 600; }

.date-cell { color: var(--text-muted); white-space: nowrap; }

.days-cell { text-align: right; }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2em 0.6em;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-danger   { background: var(--danger-light);   color: var(--danger);    }
.badge-warning  { background: var(--warning-light);  color: var(--warning);   }
.badge-overdue  { background: var(--danger-light);   color: var(--danger);    }
.badge-paid     { background: var(--success-light);  color: #065f46;          }
.badge-pending  { background: var(--warning-light);  color: #92400e;          }
.badge-at-risk  { background: #f3f4f6;               color: #374151;          border: 1px solid #d1d5db; }

/* Actions */
.actions-cell { text-align: right; white-space: nowrap; }

/* ---- Empty state ---- */

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}
.empty-icon { width: 48px; height: 48px; margin: 0 auto 0.75rem; display: block; opacity: 0.35; }
.empty-text { font-size: 1rem; font-weight: 500; margin: 0; }

/* ---- Filter bar ---- */

.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-select {
  padding: 0.375rem 0.625rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-primary);
  background: var(--surface);
  cursor: pointer;
}

.filter-select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* ---- Add invoice form ---- */

.add-form-card {
  background: var(--surface);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}

.add-form-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
}

.form-input {
  padding: 0.5rem 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-primary);
  background: var(--bg);
  min-width: 140px;
  flex: 1;
}

.form-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.form-input::placeholder { color: var(--text-muted); }

/* ---- Status select in table ---- */

.status-form { display: inline-block; }

.status-select {
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-primary);
  background: var(--bg);
  cursor: pointer;
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1.125rem;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s, box-shadow 0.15s, opacity 0.15s;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: #B45309; box-shadow: 0 2px 8px rgba(217,119,6,0.35); }
.btn-primary:active { opacity: 0.9; }

.btn-secondary {
  background: var(--surface);
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn-reminder {
  background: var(--accent-light);
  color: var(--accent);
  border: 1.5px solid #FDE68A;
}
.btn-reminder:hover:not(:disabled) { background: #FDE68A; }
.btn-reminder:disabled { opacity: 0.5; cursor: not-allowed; }

/* Responsive table padding */
@media (max-width: 640px) {
  .page { padding: 1.25rem 1rem 3rem; }
  .summary-value { font-size: 1.5rem; }
  .invoice-table th, .invoice-table td { padding: 0.625rem 0.5rem; }
  .actions-cell { min-width: 110px; }
}