/* ============================================================
   Perspective Team — Design system
   Charte sobre et graphique, adaptée à une agence d'architecture
   ============================================================ */

:root {
  --bg:            #FAFAF9;
  --bg-card:       #FFFFFF;
  --bg-subtle:     #F5F5F4;
  --border:        #E7E5E4;
  --border-strong: #D6D3D1;

  --text:          #1C1917;
  --text-muted:    #78716C;
  --text-subtle:   #A8A29E;

  --accent:        #1C1917;
  --accent-hover:  #292524;
  --accent-fg:     #FAFAF9;

  --success:       #059669;
  --success-bg:    #ECFDF5;
  --danger:        #DC2626;
  --danger-bg:     #FEF2F2;
  --warning:       #D97706;
  --warning-bg:    #FFFBEB;
  --urgent:        #EA580C;
  --urgent-bg:     #FFF7ED;

  --radius:        6px;
  --radius-lg:     10px;
  --shadow-sm:     0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow-md:     0 4px 12px rgba(28, 25, 23, 0.06);

  --font-sans:     -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter",
                   Roboto, Helvetica, Arial, sans-serif;
  --font-mono:     ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============ Header ============ */
.header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.brand-logo {
  height: 26px;
  width: auto;
  display: block;
}
.brand-suffix {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding-left: 10px;
  border-left: 1px solid var(--border);
}
/* Compatibilité anciens containers .brand-dot (à retirer plus tard) */
.brand-dot { display: none; }

.header-nav {
  display: flex;
  gap: 4px;
  margin-left: 12px;
}
.header-nav a {
  padding: 6px 12px;
  border-radius: var(--radius);
  color: var(--text-muted);
  font-weight: 500;
}
.header-nav a.active,
.header-nav a:hover {
  background: var(--bg-subtle);
  color: var(--text);
  text-decoration: none;
}

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.company-badge {
  padding: 4px 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}
.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-fg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}
.btn-icon {
  padding: 6px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius);
}
.btn-icon:hover { background: var(--bg-subtle); color: var(--text); }

/* ============ Layout ============ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}
.container-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}
.page-title {
  font-size: 22px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.02em;
}
.page-subtitle {
  color: var(--text-muted);
  margin: 4px 0 0;
  font-size: 13px;
}

/* ============ Cards ============ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.card + .card { margin-top: 12px; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}
.btn:hover:not(:disabled) { background: var(--bg-subtle); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-success {
  background: var(--success);
  color: white;
  border-color: var(--success);
}
.btn-success:hover:not(:disabled) {
  background: #047857;
  border-color: #047857;
}

.btn-danger { color: var(--danger); border-color: #FECACA; }
.btn-danger:hover:not(:disabled) { background: var(--danger-bg); }

.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover:not(:disabled) { background: var(--bg-subtle); }

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 10px 18px; font-size: 14px; }

/* ============ Forms ============ */
.field { margin-bottom: 16px; }
.field-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.field-hint {
  font-size: 12px;
  color: var(--text-subtle);
  margin-top: 4px;
}

.input, .select, .textarea {
  width: 100%;
  padding: 8px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.15s;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(28, 25, 23, 0.08);
}
.textarea { resize: vertical; min-height: 80px; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 640px) {
  .field-row { grid-template-columns: 1fr; }
}

/* ============ Filters bar ============ */
.filters {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover { background: var(--bg-subtle); color: var(--text); }
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
.chip-count {
  margin-left: 6px;
  padding: 1px 6px;
  background: rgba(0,0,0,0.08);
  border-radius: 999px;
  font-size: 11px;
}
.chip.active .chip-count { background: rgba(255,255,255,0.2); }

/* ============ Payment list ============ */
.payment-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.payment-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto auto;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  color: var(--text);
}
.payment-row:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.urgency-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-strong);
  flex-shrink: 0;
}
.urgency-dot.urgent { background: var(--urgent); box-shadow: 0 0 0 3px var(--urgent-bg); }
.urgency-dot.normal { background: var(--text-subtle); }
.urgency-dot.low    { background: var(--border-strong); }

.payment-main {
  min-width: 0;
}
.payment-beneficiary {
  font-weight: 500;
  color: var(--text);
  margin: 0 0 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.payment-meta {
  font-size: 12px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.payment-amount {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.company-tag {
  padding: 3px 10px;
  background: var(--bg-subtle);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.status-pill {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.status-pill.to_pay   { background: var(--warning-bg); color: var(--warning); }
.status-pill.paid     { background: var(--success-bg); color: var(--success); }
.status-pill.archived { background: var(--bg-subtle);  color: var(--text-muted); }

/* ============ Empty state ============ */
.empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
}
.empty-icon {
  font-size: 32px;
  margin-bottom: 12px;
  opacity: 0.4;
}
.empty-title { font-weight: 500; color: var(--text); margin: 0 0 4px; }
.empty-text { font-size: 13px; }

/* ============ Login page ============ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg);
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.login-brand {
  text-align: center;
  margin-bottom: 24px;
}
.login-brand h1 {
  font-size: 20px;
  font-weight: 600;
  margin: 8px 0 4px;
  letter-spacing: -0.01em;
}
.login-brand p {
  color: var(--text-muted);
  margin: 0;
  font-size: 13px;
}

/* ============ Alerts ============ */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 13px;
}
.alert-error   { background: var(--danger-bg);  color: var(--danger); }
.alert-success { background: var(--success-bg); color: var(--success); }

/* ============ Detail page ============ */
.detail-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.detail-back {
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: var(--radius);
}
.detail-back:hover { background: var(--bg-subtle); text-decoration: none; }

.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}
@media (max-width: 900px) {
  .detail-grid { grid-template-columns: 1fr; }
}

.definition-list {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 12px 24px;
  font-size: 14px;
}
.definition-list dt { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
.definition-list dd { margin: 0; font-weight: 500; }

.iban-mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.file-drop {
  padding: 20px;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
}
.file-drop:hover, .file-drop.drag {
  border-color: var(--accent);
  background: var(--bg-subtle);
}
.file-drop input[type="file"] { display: none; }

.file-selected {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-subtle);
  border-radius: var(--radius);
  font-size: 13px;
}

/* ============ Modal ============ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(28, 25, 23, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
}
.modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 440px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.modal-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 4px;
}
.modal-subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0 0 20px;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

/* ============ Loading ============ */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(0,0,0,0.1);
  border-top-color: var(--text);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* ============ Utils ============ */
.text-muted { color: var(--text-muted); }
.text-mono  { font-family: var(--font-mono); }
.text-right { text-align: right; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.hidden { display: none !important; }