/*
  Dhanra - production-like vanilla CSS
  Focus: clean SaaS look, minimal, responsive, accessible.
*/

:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: rgba(15, 23, 42, 0.10);
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-sm: 0 6px 18px rgba(15, 23, 42, 0.08);

  --primary: #2563eb;
  --primary-2: #1d4ed8;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #ef4444;

  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;

  --ring: 0 0 0 4px rgba(37, 99, 235, 0.15);
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(37, 99, 235, 0.10), transparent 55%),
    radial-gradient(900px 550px at 90% -20%, rgba(22, 163, 74, 0.08), transparent 50%),
    var(--bg);
}

/* Hard safety for embedded browsers */
[hidden] { display: none !important; }
.modal-backdrop[hidden] { display: none !important; }
.auth[aria-hidden="true"] { display: none !important; }
.dashboard[aria-hidden="true"] { display: none !important; }

button, input, select {
  font: inherit;
}

.muted { color: var(--muted); }

.app-shell { min-height: 100%; }

/* Auth */
.auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 16px;
}

.auth-card {
  width: min(860px, 100%);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 26px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.95), rgba(22, 163, 74, 0.80));
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.18);
}

.brand-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  display: block;
}

.brand-logo-text {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
  font-family: var(--font);
}

.nav-logo-text {
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: bold;
  font-family: var(--font);
}

.brand-name { font-weight: 800; }
.brand-tagline { color: var(--muted); font-size: 13px; margin-top: 2px; }

.auth-title {
  margin: 18px 0 6px;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.auth-subtitle {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.5;
}

.form { width: 100%; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field { display: grid; gap: 8px; }
.field label {
  font-size: 13px;
  color: rgba(15, 23, 42, 0.85);
  font-weight: 600;
}

input, .select {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 11px 12px;
  outline: none;
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

input:focus, .select:focus {
  border-color: rgba(37, 99, 235, 0.55);
  box-shadow: var(--ring);
}

input::placeholder { color: rgba(100, 116, 139, 0.75); }

.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  align-items: center;
  margin-top: 16px;
  flex-wrap: wrap;
}

.segmented {
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.55);
  margin-bottom: 14px;
}
.seg-btn {
  border: 1px solid transparent;
  background: transparent;
  padding: 9px 12px;
  border-radius: 12px;
  cursor: pointer;
  color: rgba(15, 23, 42, 0.75);
  font-weight: 750;
}
.seg-btn:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: var(--border);
  color: rgba(15, 23, 42, 0.95);
}
.seg-btn.is-active {
  background: rgba(37, 99, 235, 0.10);
  border-color: rgba(37, 99, 235, 0.18);
  color: rgba(29, 78, 216, 1);
}

.btn {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 14px;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease, border-color 140ms ease, color 140ms ease;
  user-select: none;
  font-weight: 600;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }

.btn-primary {
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.98), rgba(29, 78, 216, 0.98));
  color: white;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.18);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 26px rgba(37, 99, 235, 0.22); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.65);
  border-color: var(--border);
  color: rgba(15, 23, 42, 0.9);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.95); transform: translateY(-1px); }

.btn-danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.22);
  color: rgba(185, 28, 28, 1);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.16); transform: translateY(-1px); }

.btn-sm { padding: 8px 10px; border-radius: 10px; font-size: 13px; }

.notice {
  margin-top: 14px;
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.65);
  color: rgba(15, 23, 42, 0.9);
  line-height: 1.4;
}
.app-notice {
  margin-top: 0;
  margin-bottom: 14px;
}
.notice.is-success {
  border-color: rgba(22, 163, 74, 0.25);
  background: rgba(22, 163, 74, 0.08);
}
.notice.is-danger {
  border-color: rgba(239, 68, 68, 0.25);
  background: rgba(239, 68, 68, 0.08);
}
.notice.is-warning {
  border-color: rgba(245, 158, 11, 0.25);
  background: rgba(245, 158, 11, 0.08);
}

.auth-footer { margin-top: 16px; font-size: 13px; color: var(--muted); }

/* Dashboard */
.dashboard { min-height: 100vh; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(247, 248, 251, 0.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar-left { display: flex; align-items: center; gap: 16px; }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.95), rgba(22, 163, 74, 0.82));
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.14);
}

.nav-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
}
.logo-text { letter-spacing: -0.02em; }

.topnav { display: flex; gap: 6px; }
.navlink {
  border: 1px solid transparent;
  background: transparent;
  padding: 9px 10px;
  border-radius: 12px;
  cursor: pointer;
  color: rgba(15, 23, 42, 0.75);
  font-weight: 650;
}
.navlink:hover {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--border);
  color: rgba(15, 23, 42, 0.95);
}
.navlink.is-active {
  background: rgba(37, 99, 235, 0.10);
  border-color: rgba(37, 99, 235, 0.18);
  color: rgba(29, 78, 216, 1);
}

.user-dropdown {
  position: relative;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  cursor: pointer;
  transition: all 140ms ease;
}

.user-pill:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-1px);
}

.user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.user-name {
  font-weight: 600;
  font-size: 14px;
  line-height: 1.2;
}

.user-sub {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.2;
}

.dropdown-arrow {
  transition: transform 140ms ease;
  color: var(--muted);
}

.user-pill[aria-expanded="true"] .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 140ms ease;
  z-index: 1000;
  overflow: hidden;
}

.user-dropdown[aria-expanded="true"] .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 16px;
  border: none;
  background: transparent;
  text-align: left;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  transition: background-color 140ms ease;
}

.dropdown-item:hover {
  background: rgba(37, 99, 235, 0.05);
}

.dropdown-item.danger {
  color: var(--danger);
}

.dropdown-item.danger:hover {
  background: rgba(239, 68, 68, 0.05);
}

.dropdown-item svg {
  flex-shrink: 0;
  color: var(--muted);
}

.dropdown-item.danger svg {
  color: var(--danger);
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.container {
  width: min(1140px, 100%);
  margin: 0 auto;
  padding: 20px 18px 40px;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  margin-top: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.page-title {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.03em;
}
.page-subtitle {
  margin: 8px 0 0;
  color: var(--muted);
}

.card {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}
.stat-card { padding: 16px; }
.stat-label { color: var(--muted); font-size: 13px; font-weight: 600; }
.stat-value { margin-top: 8px; font-size: 28px; font-weight: 800; letter-spacing: -0.03em; }
.stat-hint { margin-top: 6px; color: rgba(100, 116, 139, 0.95); font-size: 13px; }

.table-card { overflow: hidden; }
.table-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 14px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.table-title { font-weight: 800; letter-spacing: -0.02em; }

.table-tools { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.search input { width: min(320px, 60vw); }
.select { width: 160px; padding: 10px 12px; }

.table-wrap { overflow: auto; }
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 860px;
}
.table thead th {
  text-align: left;
  font-size: 12px;
  color: rgba(100, 116, 139, 0.95);
  font-weight: 700;
  padding: 12px 14px;
  background: rgba(247, 248, 251, 0.75);
  position: sticky;
  top: 0;
  z-index: 1;
  border-bottom: 1px solid var(--border);
}
.table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.07);
  vertical-align: middle;
  color: rgba(15, 23, 42, 0.92);
}
.table tbody tr {
  transition: background 140ms ease, transform 140ms ease;
}
.table tbody tr:hover {
  background: rgba(37, 99, 235, 0.05);
}
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table th.actions, .table td.actions { text-align: right; width: 1%; white-space: nowrap; }

.row-overdue {
  background: rgba(239, 68, 68, 0.06);
}
.row-overdue:hover { background: rgba(239, 68, 68, 0.09); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.75);
  color: rgba(15, 23, 42, 0.9);
}
.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(100, 116, 139, 0.9);
}
.badge.is-paid {
  border-color: rgba(22, 163, 74, 0.20);
  background: rgba(22, 163, 74, 0.08);
  color: rgba(21, 128, 61, 1);
}
.badge.is-paid .badge-dot { background: rgba(22, 163, 74, 0.95); }
.badge.is-unpaid {
  border-color: rgba(245, 158, 11, 0.22);
  background: rgba(245, 158, 11, 0.10);
  color: rgba(161, 98, 7, 1);
}
.badge.is-unpaid .badge-dot { background: rgba(245, 158, 11, 0.95); }
.badge.is-overdue {
  border-color: rgba(239, 68, 68, 0.22);
  background: rgba(239, 68, 68, 0.10);
  color: rgba(185, 28, 28, 1);
}
.badge.is-overdue .badge-dot { background: rgba(239, 68, 68, 0.95); }

.row-actions { display: inline-flex; gap: 8px; }
.icon-btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.65);
  width: 36px;
  height: 36px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.95); transform: translateY(-1px); }
.icon-btn:active { transform: translateY(1px); }
.icon-btn:focus-visible { outline: none; box-shadow: var(--ring); }

.table-empty {
  padding: 22px 16px 26px;
  text-align: center;
}
.empty-title { font-weight: 800; letter-spacing: -0.02em; }
.empty-sub { color: var(--muted); margin-top: 8px; margin-bottom: 14px; }

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  display: grid;
  place-items: center;
  padding: 20px 16px;
}
.modal {
  width: min(560px, 100%);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.modal-sm { width: min(480px, 100%); }
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 14px;
  border-bottom: 1px solid var(--border);
  background: rgba(247, 248, 251, 0.75);
}
.modal-title { font-weight: 850; letter-spacing: -0.02em; }
.modal-sub { color: var(--muted); font-size: 13px; margin-top: 4px; }
.modal-body { padding: 14px; }
.modal form { padding: 14px; }
.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.confirm-box {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 12px;
  padding: 12px;
  line-height: 1.45;
  color: rgba(15, 23, 42, 0.92);
}

/* Responsive */
@media (max-width: 1200px) {
  .container { padding: 0 20px; }
  .auth-card { margin: 20px; }
}

@media (max-width: 920px) {
  .stats { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .search input { width: min(520px, 78vw); }
  .page-header { padding: 24px 0; }
  .panel { padding: 20px; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .auth-card { 
    margin: 16px; 
    padding: 24px;
  }
  .panel { 
    padding: 16px; 
    margin: 0 0 20px 0;
  }
  .page-header { 
    padding: 20px 0;
    text-align: center;
  }
  .page-title { 
    font-size: 24px;
    margin-bottom: 8px;
  }
  .page-subtitle { 
    font-size: 14px;
    line-height: 1.4;
  }
  .brand-name { font-size: 28px; }
  .brand-logo { width: 48px; height: 48px; }
  .btn { padding: 12px 20px; font-size: 14px; }
  .btn-sm { padding: 8px 16px; font-size: 13px; }
  .search input { 
    width: 100%; 
    font-size: 16px; /* Prevents zoom on iOS */
  }
  .form-group { margin-bottom: 16px; }
  .form-grid { gap: 16px; }
  .stats { gap: 16px; }
  .table { font-size: 14px; }
  .table th, .table td { 
    padding: 12px 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .modal-content { 
    margin: 16px;
    max-width: calc(100vw - 32px);
    max-height: calc(100vh - 32px);
  }
  .modal-header { padding: 20px; }
  .modal-body { padding: 20px; }
  .modal-footer { padding: 20px; }
  .notice { margin: 16px 0; padding: 12px 16px; }
  .nav { 
    flex-direction: column; 
    gap: 8px;
  }
  .navlink { 
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 12px; }
  .auth-card { 
    margin: 12px; 
    padding: 20px;
  }
  .panel { padding: 12px; }
  .page-header { padding: 16px 0; }
  .page-title { font-size: 20px; }
  .page-subtitle { font-size: 13px; }
  .brand-name { font-size: 24px; }
  .brand-logo { width: 40px; height: 40px; }
  .btn { 
    padding: 10px 16px; 
    font-size: 13px;
    width: 100%;
  }
  .btn-sm { 
    padding: 6px 12px; 
    font-size: 12px;
  }
  .form-group { margin-bottom: 12px; }
  .search input { font-size: 16px; }
  .table { font-size: 13px; }
  .table th, .table td { 
    padding: 8px 4px;
    font-size: 12px;
  }
  .modal-content { 
    margin: 8px;
    max-width: calc(100vw - 16px);
  }
  .modal-header { padding: 16px; }
  .modal-body { padding: 16px; }
  .modal-footer { 
    padding: 16px;
    flex-direction: column;
    gap: 8px;
  }
  .modal-footer .btn { width: 100%; }
  .notice { 
    margin: 12px 0; 
    padding: 10px 12px;
    font-size: 13px;
  }
  .stats-card { padding: 16px; }
  .stats-number { font-size: 24px; }
  .stats-label { font-size: 12px; }
  .actions { 
    flex-direction: column;
    gap: 4px;
  }
  .actions .btn { font-size: 11px; padding: 4px 8px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}