/* ============================================================
   Müşteri Yönetimi — app.css
   Dark: Midnight Glass | Light: Executive Clean
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Variables — Light ───────────────────────────────── */
:root,
[data-theme="light"] {
  --bg-base:        #f1f5f9;
  --bg-surface:     #ffffff;
  --bg-surface-2:   #f8fafc;
  --bg-hover:       #f1f5f9;
  --border:         rgba(0,0,0,0.08);
  --border-strong:  rgba(0,0,0,0.15);
  --text-primary:   #1e293b;
  --text-secondary: #64748b;
  --text-muted:     #94a3b8;
  --accent-1:       #6366f1;
  --accent-2:       #2563eb;
  --accent-grad:    linear-gradient(135deg, #6366f1, #2563eb);
  --sidebar-bg:     #1e293b;
  --sidebar-text:   rgba(255,255,255,0.75);
  --sidebar-active: rgba(255,255,255,0.12);
  --sidebar-hover:  rgba(255,255,255,0.07);
  --topbar-bg:      #ffffff;
  --shadow-sm:      0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:      0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:      0 10px 40px rgba(0,0,0,0.12);
  --radius-sm:      8px;
  --radius-md:      12px;
  --radius-lg:      16px;
  --radius-xl:      24px;
  /* Status */
  --paid-bg:     #dcfce7; --paid-text:     #16a34a;
  --pending-bg:  #fef9c3; --pending-text:  #d97706;
  --late-bg:     #fee2e2; --late-text:     #dc2626;
  --upcoming-bg: #fff7ed; --upcoming-text: #c2410c;
}

/* ── CSS Variables — Dark ────────────────────────────────── */
[data-theme="dark"] {
  --bg-base:        #0d0f1e;
  --bg-surface:     rgba(255,255,255,0.04);
  --bg-surface-2:   rgba(255,255,255,0.03);
  --bg-hover:       rgba(255,255,255,0.06);
  --border:         rgba(255,255,255,0.08);
  --border-strong:  rgba(255,255,255,0.14);
  --text-primary:   #f1f5f9;
  --text-secondary: rgba(255,255,255,0.6);
  --text-muted:     rgba(255,255,255,0.35);
  --accent-1:       #a78bfa;
  --accent-2:       #ec4899;
  --accent-grad:    linear-gradient(135deg, #a78bfa, #ec4899);
  --sidebar-bg:     rgba(255,255,255,0.03);
  --sidebar-text:   rgba(255,255,255,0.65);
  --sidebar-active: rgba(167,139,250,0.18);
  --sidebar-hover:  rgba(255,255,255,0.06);
  --topbar-bg:      rgba(13,15,30,0.85);
  --shadow-sm:      0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:      0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:      0 10px 40px rgba(0,0,0,0.5);
  /* Status */
  --paid-bg:     rgba(16,185,129,0.15); --paid-text:     #34d399;
  --pending-bg:  rgba(251,191,36,0.15); --pending-text:  #fbbf24;
  --late-bg:     rgba(248,113,113,0.15);--late-text:     #f87171;
  --upcoming-bg: rgba(251,146,60,0.15); --upcoming-text: #fb923c;
}

/* ── Base Reset ──────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] body {
  background: radial-gradient(ellipse at 20% 0%, #1a1135 0%, #0d0f1e 60%);
}

/* ── Layout ──────────────────────────────────────────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  width: 220px;
  min-height: 100vh;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 100;
  transition: background 0.3s ease;
  backdrop-filter: blur(12px);
}

[data-theme="light"] .sidebar {
  background: #1e293b;
}

.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-logo a {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo-icon {
  width: 34px; height: 34px;
  background: var(--accent-grad);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.sidebar-logo-text span {
  display: block;
  font-size: 10px;
  font-weight: 400;
  opacity: 0.55;
  letter-spacing: 0.5px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 12px;
  overflow-y: auto;
  scrollbar-width: none;
}

.sidebar-nav::-webkit-scrollbar { display: none; }

.sidebar-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  padding: 12px 8px 6px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.2s ease;
  margin-bottom: 2px;
}

.sidebar-nav a:hover {
  background: var(--sidebar-hover);
  color: #fff;
}

.sidebar-nav a.active {
  background: var(--sidebar-active);
  color: #fff;
}

[data-theme="dark"] .sidebar-nav a.active {
  box-shadow: 0 0 0 1px rgba(167,139,250,0.25);
}

.sidebar-nav a .nav-icon {
  width: 18px; height: 18px; opacity: 0.8;
  flex-shrink: 0;
}

.sidebar-nav a.active .nav-icon { opacity: 1; }

.sidebar-nav a .badge-count {
  margin-left: auto;
  background: #ef4444;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 20px;
  min-width: 18px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.05);
}

.sidebar-user .avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-user .user-info {
  flex: 1; min-width: 0;
}

.sidebar-user .user-name {
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user .user-role {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
}

/* ── Main Content ────────────────────────────────────────── */
.main-content {
  margin-left: 220px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* ── Topbar ──────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
  backdrop-filter: blur(12px);
}

.topbar-left { flex: 1; }

.topbar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.topbar-date {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 1px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-btn {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 15px;
  position: relative;
}

.topbar-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.topbar-btn .notif-badge {
  position: absolute;
  top: -4px; right: -4px;
  background: #ef4444;
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  width: 16px; height: 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--topbar-bg);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.lang-toggle {
  padding: 0 12px;
  font-size: 12px;
  font-weight: 600;
  width: auto;
  letter-spacing: 0.5px;
  gap: 4px;
}

/* ── Page Content ────────────────────────────────────────── */
.page-content {
  padding: 24px;
  flex: 1;
}

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
}

[data-theme="dark"] .card {
  backdrop-filter: blur(8px);
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title svg { color: var(--accent-1); }

.card-body { padding: 20px; }

/* ── Stat Cards ──────────────────────────────────────────── */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-icon.green  { background: rgba(16,185,129,0.15); }
.stat-icon.blue   { background: rgba(99,102,241,0.15); }
.stat-icon.yellow { background: rgba(251,191,36,0.15); }
.stat-icon.red    { background: rgba(239,68,68,0.15); }
.stat-icon.purple { background: rgba(167,139,250,0.15); }

.stat-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
  font-weight: 500;
}

/* ── Tables ──────────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.table thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s ease;
}

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

.table tbody tr:hover { background: var(--bg-hover); }

.table tbody td {
  padding: 13px 16px;
  color: var(--text-primary);
  vertical-align: middle;
}

.table .cell-muted { color: var(--text-secondary); }

/* ── Badges / Status Pills ───────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-paid     { background: var(--paid-bg);     color: var(--paid-text); }
.badge-pending  { background: var(--pending-bg);  color: var(--pending-text); }
.badge-late     { background: var(--late-bg);     color: var(--late-text); }
.badge-upcoming { background: var(--upcoming-bg); color: var(--upcoming-text); }
.badge-active   { background: rgba(16,185,129,0.15); color: var(--paid-text); }
.badge-passive  { background: var(--bg-hover); color: var(--text-muted); }
.badge-admin    { background: rgba(99,102,241,0.15); color: var(--accent-1); }
.badge-client-user { background: rgba(251,191,36,0.15); color: var(--pending-text); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: 0 2px 8px rgba(99,102,241,0.35);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99,102,241,0.45);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.btn-danger {
  background: rgba(239,68,68,0.1);
  color: #ef4444;
  border: 1px solid rgba(239,68,68,0.2);
}

.btn-danger:hover {
  background: rgba(239,68,68,0.18);
  border-color: rgba(239,68,68,0.35);
  color: #ef4444;
}

.btn-success {
  background: rgba(16,185,129,0.12);
  color: #10b981;
  border: 1px solid rgba(16,185,129,0.25);
}

.btn-success:hover {
  background: rgba(16,185,129,0.2);
  border-color: rgba(16,185,129,0.4);
  color: #10b981;
}

.btn-sm { padding: 5px 10px; font-size: 12px; border-radius: 7px; }
.btn-xs { padding: 3px 8px; font-size: 11px; border-radius: 6px; }
.btn-icon { padding: 7px; gap: 0; }

/* ── Forms ───────────────────────────────────────────────── */
.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}

.form-control::placeholder, .form-textarea::placeholder {
  color: var(--text-muted);
}

.form-control:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] .form-textarea:focus {
  box-shadow: 0 0 0 3px rgba(167,139,250,0.15);
}

.form-select { appearance: none; cursor: pointer; }

.form-textarea { resize: vertical; min-height: 100px; }

.form-group { margin-bottom: 18px; }

.form-row {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr 1fr;
}

/* ── Search / Filter Bar ─────────────────────────────────── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.search-input-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.search-input-wrap svg {
  position: absolute;
  left: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-input-wrap .form-control {
  padding-left: 38px;
}

/* ── Alerts / Flash ──────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 16px;
}

.alert-success {
  background: rgba(16,185,129,0.12);
  color: var(--paid-text);
  border: 1px solid rgba(16,185,129,0.25);
}

.alert-error {
  background: var(--late-bg);
  color: var(--late-text);
  border: 1px solid rgba(239,68,68,0.25);
}

.alert-warning {
  background: var(--pending-bg);
  color: var(--pending-text);
  border: 1px solid rgba(251,191,36,0.3);
}

.alert-info {
  background: rgba(99,102,241,0.1);
  color: var(--accent-1);
  border: 1px solid rgba(99,102,241,0.2);
}

/* ── Empty State ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-state p {
  font-size: 14px;
  margin-bottom: 16px;
}

/* ── Notification Dropdown ───────────────────────────────── */
.notif-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 340px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  overflow: hidden;
  display: none;
}

[data-theme="dark"] .notif-dropdown {
  backdrop-filter: blur(16px);
}

.notif-dropdown.show { display: block; }

.notif-dropdown-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 700;
}

.notif-list { max-height: 360px; overflow-y: auto; }

.notif-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: background 0.15s ease;
}

.notif-item:hover { background: var(--bg-hover); }

.notif-item.unread { background: rgba(99,102,241,0.05); }

[data-theme="dark"] .notif-item.unread { background: rgba(167,139,250,0.07); }

.notif-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-1);
  flex-shrink: 0;
  margin-top: 5px;
}

.notif-dot.read { background: transparent; }

.notif-msg {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.4;
}

.notif-time {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
}

.notif-type-upcoming { border-left: 3px solid var(--pending-text); }
.notif-type-overdue  { border-left: 3px solid var(--late-text); }

.notif-footer {
  padding: 12px 16px;
  text-align: center;
  border-top: 1px solid var(--border);
}

.notif-footer a {
  font-size: 12.5px;
  color: var(--accent-1);
  text-decoration: none;
  font-weight: 600;
}

/* ── Checkbox Task ───────────────────────────────────────── */
.task-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  margin-bottom: 8px;
  transition: all 0.2s ease;
}

.task-checkbox:hover { box-shadow: var(--shadow-sm); }

.task-checkbox input[type="checkbox"] {
  width: 18px; height: 18px;
  cursor: pointer;
  accent-color: var(--accent-1);
  flex-shrink: 0;
}

.task-checkbox.done { opacity: 0.55; }
.task-checkbox.done .task-title { text-decoration: line-through; }

.task-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
}

.task-meta {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── Timeline (Notes) ────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 20px;
}

.timeline-dot {
  position: absolute;
  left: -24px;
  top: 12px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-1);
  border: 2px solid var(--bg-base);
}

.timeline-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}

.timeline-meta {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-content {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
  white-space: pre-line;
}

/* ── Page Header ─────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-header h1 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
}

/* ── Auth Layout ─────────────────────────────────────────── */
.auth-layout {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

[data-theme="dark"] .auth-layout {
  background: radial-gradient(ellipse at 30% 20%, #1a1135 0%, #0d0f1e 70%);
}

[data-theme="light"] .auth-layout {
  background: linear-gradient(135deg, #e0e7ff 0%, #f1f5f9 100%);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .auth-card {
  backdrop-filter: blur(16px);
}

.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo-icon {
  width: 56px; height: 56px;
  background: var(--accent-grad);
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin: 0 auto 16px;
  box-shadow: 0 8px 20px rgba(99,102,241,0.35);
}

.auth-logo h1 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
}

.auth-logo p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Dashboard Grid ──────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.dashboard-grid .span-2 { grid-column: span 2; }

@media (max-width: 900px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  .dashboard-grid .span-2 { grid-column: span 1; }
}

/* ── Amount / Money ──────────────────────────────────────── */
.amount-positive { color: var(--paid-text); font-weight: 600; }
.amount-negative { color: var(--late-text); font-weight: 600; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
}

/* ── Transitions & Animations ────────────────────────────── */
.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Misc Utilities ──────────────────────────────────────── */
.text-muted   { color: var(--text-muted); }
.text-accent  { color: var(--accent-1); }
.fw-600       { font-weight: 600; }
.fw-700       { font-weight: 700; }
.mt-0         { margin-top: 0; }
.mb-0         { margin-bottom: 0; }
.text-center  { text-align: center; }
.d-flex       { display: flex; }
.align-center { align-items: center; }
.gap-2        { gap: 8px; }
.gap-3        { gap: 12px; }
.ms-auto      { margin-left: auto; }
.w-100        { width: 100%; }

/* ── Gradient Accent Text ────────────────────────────────── */
.gradient-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Client Card ─────────────────────────────────────────── */
.client-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  display: block;
  color: inherit;
}

.client-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: inherit;
}

.client-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.client-avatar {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}

.client-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.client-service {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.client-stats {
  display: flex;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.client-stat {
  font-size: 12px;
  color: var(--text-muted);
}

.client-stat strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

/* ── View Toggle (List/Card) ─────────────────────────────── */
.view-toggle {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  padding: 3px;
  gap: 2px;
}

.view-toggle-btn {
  padding: 5px 10px;
  border-radius: 6px;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s ease;
}

.view-toggle-btn.active {
  background: var(--accent-1);
  color: #fff;
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Dark Mode Body Gradient ─────────────────────────────── */
[data-theme="dark"] {
  background: radial-gradient(ellipse at 20% 0%, #1a1135 0%, #0d0f1e 60%);
}

/* ── Stat Card — Accent Border ───────────────────────────── */
.stat-card.accent-purple { border-top: 3px solid var(--accent-1); }
.stat-card.accent-green  { border-top: 3px solid #10b981; }
.stat-card.accent-yellow { border-top: 3px solid #f59e0b; }
.stat-card.accent-red    { border-top: 3px solid #ef4444; }

/* ── Client Card — Premium ───────────────────────────────── */
[data-theme="dark"] .client-card {
  backdrop-filter: blur(8px);
}

.client-card {
  box-shadow: var(--shadow-sm);
}

.client-card:hover {
  border-color: var(--accent-1);
}

[data-theme="dark"] .client-card:hover {
  box-shadow: 0 8px 32px rgba(167,139,250,0.15);
}

/* ── Form Pages ──────────────────────────────────────────── */
.form-page {
  max-width: 680px;
}

.form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

[data-theme="dark"] .form-card {
  backdrop-filter: blur(12px);
}

.form-card-header {
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface-2);
  display: flex;
  align-items: center;
  gap: 12px;
}

.form-card-header-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
  flex-shrink: 0;
}

.form-card-header h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.form-card-body {
  padding: 28px;
}

.form-card-footer {
  padding: 16px 28px;
  border-top: 1px solid var(--border);
  background: var(--bg-surface-2);
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
}

/* ── Input hint ──────────────────────────────────────────── */
.form-hint {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 5px;
}

/* ── Tab Navigation ──────────────────────────────────────── */
.tab-nav {
  display: flex;
  gap: 2px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  width: fit-content;
  margin-bottom: 20px;
}

.tab-btn {
  padding: 7px 16px;
  border-radius: 7px;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.tab-btn.active {
  background: var(--accent-grad);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(99,102,241,0.3);
}

[data-theme="dark"] .tab-btn.active {
  box-shadow: 0 2px 8px rgba(167,139,250,0.3);
}

/* ── Page Subheader ──────────────────────────────────────── */
.page-header h1 { letter-spacing: -0.3px; }
.page-header p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 3px;
}

/* ── Table Action Buttons ────────────────────────────────── */
.table-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  transform: translateY(16px);
  transition: transform 0.2s ease;
}

[data-theme="dark"] .modal {
  backdrop-filter: blur(16px);
}

.modal-overlay.show .modal {
  transform: translateY(0);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--bg-hover);
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--late-bg);
  color: var(--late-text);
}

.modal-body { padding: 24px; }

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ── Progress Bar ────────────────────────────────────────── */
.progress-bar-wrap {
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-bar {
  height: 100%;
  border-radius: 4px;
  background: var(--accent-grad);
  transition: width 0.4s ease;
}

/* ── Divider ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

/* ── Info Row (key: value) ───────────────────────────────── */
.info-row {
  display: flex;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  gap: 16px;
}

.info-row:last-child { border-bottom: none; }

.info-row-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  min-width: 140px;
  flex-shrink: 0;
}

.info-row-value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

/* ── Glow Effect (Dark mode accent elements) ─────────────── */
[data-theme="dark"] .btn-primary {
  box-shadow: 0 2px 12px rgba(167,139,250,0.4);
}

[data-theme="dark"] .btn-primary:hover {
  box-shadow: 0 4px 20px rgba(167,139,250,0.55);
}

[data-theme="dark"] .sidebar-logo-icon {
  box-shadow: 0 4px 16px rgba(167,139,250,0.5);
}

[data-theme="dark"] .stat-card {
  backdrop-filter: blur(8px);
}

/* ── Topbar refinement ───────────────────────────────────── */
[data-theme="light"] .topbar {
  box-shadow: 0 1px 0 var(--border);
}

/* ── Sidebar active indicator ────────────────────────────── */
.sidebar-nav a.active {
  position: relative;
}

[data-theme="dark"] .sidebar-nav a.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 60%;
  background: var(--accent-grad);
  border-radius: 0 3px 3px 0;
}

/* ── Page transition ─────────────────────────────────────── */
.page-content {
  animation: pageFadeIn 0.25s ease;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Notification item hover ─────────────────────────────── */
.notif-item {
  cursor: pointer;
}

/* ── Client show page ────────────────────────────────────── */
.client-show-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.client-show-avatar {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 6px 20px rgba(99,102,241,0.35);
  flex-shrink: 0;
}

[data-theme="dark"] .client-show-avatar {
  box-shadow: 0 6px 20px rgba(167,139,250,0.4);
}

/* ── Responsive adjustments ──────────────────────────────── */
@media (max-width: 1100px) {
  .client-cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

@media (max-width: 600px) {
  .page-header { flex-direction: column; align-items: flex-start; }
  .filter-bar  { flex-direction: column; }
  .form-row    { grid-template-columns: 1fr; }
  .stat-cards  { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 0 16px; }
  .page-content { padding: 16px; }
}