/* =========================================================
   RIR SYSTEM - CORE STYLESHEET
   Professional financial dashboard theme, mobile-first.
   ========================================================= */

:root {
  --color-primary: #10426a;
  --color-primary-light: #175a8c;
  --color-accent: #0f9d6b;
  --color-danger: #c0392b;
  --color-warning: #b98900;
  --color-info: #1b6fa8;
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-border: #e1e6ec;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(16, 66, 106, 0.08);
  --shadow-md: 0 4px 14px rgba(16, 66, 106, 0.10);
  --sidebar-width: 250px;
  --topbar-height: 64px;
}

/* ---------- Dark mode ---------- */
:root[data-theme="dark"] {
  --color-primary: #1b6fa8;
  --color-primary-light: #2f8bc9;
  --color-accent: #17b57f;
  --color-danger: #e0574a;
  --color-warning: #d9a520;
  --color-info: #4fa8e0;
  --color-bg: #0f141b;
  --color-surface: #1a212b;
  --color-border: #2b3542;
  --color-text: #e6eaf0;
  --color-text-muted: #93a0b3;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; }

html { color-scheme: light; }
html[data-theme="dark"] { color-scheme: dark; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.5;
  transition: background 0.15s ease, color 0.15s ease;
}

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

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

.app-sidebar {
  width: var(--sidebar-width);
  background: var(--color-primary);
  color: #fff;
  flex-shrink: 0;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  overflow-y: auto;
  z-index: 40;
  transition: transform 0.25s ease;
}

.sidebar-brand {
  padding: 20px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.sidebar-menu { list-style: none; margin: 0; padding: 12px 0; }
.sidebar-menu li a {
  display: block;
  padding: 12px 20px;
  color: rgba(255,255,255,0.82);
  font-size: 0.92rem;
}
.sidebar-menu li a:hover { background: rgba(255,255,255,0.08); text-decoration: none; }
.sidebar-menu li.active a {
  background: var(--color-primary-light);
  color: #fff;
  border-left: 3px solid var(--color-accent);
  font-weight: 600;
}

.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.app-topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.app-topbar-title { font-size: 1.1rem; font-weight: 600; }
.app-topbar-actions { display: flex; align-items: center; gap: 14px; }
.app-topbar-user { display: flex; align-items: center; gap: 12px; font-size: 0.88rem; }
.app-topbar-user .user-name { font-weight: 600; }
.app-topbar-user .user-role {
  background: var(--color-bg);
  color: var(--color-text-muted);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.75rem;
}

.app-content { padding: 24px; flex: 1; }
.app-footer {
  padding: 16px 24px;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.sidebar-toggle {
  display: none;
  position: fixed;
  top: 14px; left: 14px;
  z-index: 50;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  width: 40px; height: 40px;
  font-size: 1.2rem;
  cursor: pointer;
}

/* ---------- Auth pages (no sidebar) ---------- */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), #08283f);
  padding: 20px;
}
.auth-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 36px 32px;
  width: 100%;
  max-width: 400px;
}
.auth-card h1 { font-size: 1.4rem; margin: 0 0 4px; }
.auth-card p.subtitle { color: var(--color-text-muted); margin: 0 0 24px; font-size: 0.9rem; }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 18px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  border: 1px solid var(--color-border);
}
.card h3 { margin: 0 0 4px; font-size: 0.85rem; color: var(--color-text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.4px; }
.card .metric { font-size: 1.7rem; font-weight: 700; color: var(--color-primary); }
.card .metric.accent { color: var(--color-accent); }
.card .metric.danger { color: var(--color-danger); }

.section-title { font-size: 1.05rem; font-weight: 700; margin: 28px 0 14px; color: var(--color-primary); }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 16px; }
label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 6px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=tel], input[type=file], select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.92rem;
  background: var(--color-surface);
  color: var(--color-text);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(23, 90, 140, 0.12);
}
.form-hint { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 4px; }
.form-error { font-size: 0.8rem; color: var(--color-danger); margin-top: 4px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  text-align: center;
}
.btn:hover { background: var(--color-primary-light); text-decoration: none; color: #fff; }
.btn-accent { background: var(--color-accent); }
.btn-danger { background: var(--color-danger); }
.btn-outline { background: transparent; border: 1px solid var(--color-border); color: var(--color-text); }
.btn-outline:hover { background: var(--color-bg); color: var(--color-text); }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-block { display: block; width: 100%; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; background: var(--color-surface); border-radius: var(--radius); border: 1px solid var(--color-border); }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
thead th {
  text-align: left;
  padding: 12px 16px;
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  white-space: nowrap;
}
tbody td { padding: 12px 16px; border-top: 1px solid var(--color-border); white-space: nowrap; }
tbody tr:hover { background: var(--color-bg); }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; }
.badge-success { background: #e4f7ec; color: #0f9d6b; }
.badge-warning { background: #fdf3d8; color: #b98900; }
.badge-danger { background: #fbe6e3; color: #c0392b; }
.badge-info { background: #e3f0f9; color: #1b6fa8; }
.badge-secondary { background: #eceff2; color: #6b7280; }
.badge-dark { background: #2b2f36; color: #fff; }

/* ---------- Toasts / flash ---------- */
.toast {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.88rem;
  border-left: 4px solid;
}
.toast-success { background: #e4f7ec; border-color: var(--color-accent); color: #0b5c3e; }
.toast-error { background: #fbe6e3; border-color: var(--color-danger); color: #8a2a20; }
.toast-info { background: #e3f0f9; border-color: var(--color-info); color: #0f4c73; }

/* ---------- Modal (confirmation dialogs) ---------- */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.5);
  align-items: center; justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--shadow-md);
}
.modal-box h3 { margin-top: 0; }
.confirm-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 0.9rem; border-bottom: 1px dashed var(--color-border); }
.confirm-row:last-child { border-bottom: none; }
.modal-actions { display: flex; gap: 10px; margin-top: 20px; }

/* ---------- Filters bar ---------- */
.filters-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; align-items: flex-end; }
.filters-bar .form-group { margin-bottom: 0; min-width: 160px; }

/* ---------- Pagination ---------- */
.pagination { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.pagination a, .pagination span {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  font-size: 0.82rem;
  color: var(--color-text);
}
.pagination .current { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ---------- Friendly error page ---------- */
.friendly-error {
  max-width: 420px;
  margin: 80px auto;
  background: var(--color-surface);
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  text-align: center;
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
}
.theme-toggle:hover { background: var(--color-border); }
.theme-toggle .icon-dark { display: none; }
[data-theme="dark"] .theme-toggle .icon-light { display: none; }
[data-theme="dark"] .theme-toggle .icon-dark { display: inline; }

.auth-theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 10;
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}
.auth-theme-toggle:hover { background: rgba(255, 255, 255, 0.24); }

/* ---------- Dark-mode color adjustments for saturated flat colors ---------- */
[data-theme="dark"] .badge-success { background: rgba(23, 181, 127, 0.16); color: #3fdba0; }
[data-theme="dark"] .badge-warning { background: rgba(217, 165, 32, 0.16); color: #f0c94d; }
[data-theme="dark"] .badge-danger  { background: rgba(224, 87, 74, 0.16); color: #ff8f80; }
[data-theme="dark"] .badge-info    { background: rgba(79, 168, 224, 0.16); color: #7fc4f2; }
[data-theme="dark"] .badge-secondary { background: rgba(148, 163, 184, 0.16); color: #c3cbd6; }
[data-theme="dark"] .badge-dark { background: #3a4250; color: #f1f4f8; }

[data-theme="dark"] .toast-success { background: rgba(23, 181, 127, 0.14); color: #3fdba0; }
[data-theme="dark"] .toast-error   { background: rgba(224, 87, 74, 0.14); color: #ff9284; }
[data-theme="dark"] .toast-info    { background: rgba(79, 168, 224, 0.14); color: #86c8f4; }

[data-theme="dark"] .auth-page { background: linear-gradient(135deg, #0c2135, #060d15); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar-toggle { display: block; }
  .app-sidebar { transform: translateX(-100%); }
  .app-sidebar.open { transform: translateX(0); }
  .app-main { margin-left: 0; }
  .app-topbar { padding-left: 64px; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .app-topbar-user .user-role { display: none; }
  thead { display: none; }
  table, tbody, tr, td { display: block; width: 100%; }
  tbody tr { border-top: 1px solid var(--color-border); padding: 10px 0; }
  tbody td { display: flex; justify-content: space-between; gap: 12px; border: none; padding: 6px 16px; white-space: normal; text-align: right; }
  tbody td::before { content: attr(data-label); font-weight: 600; color: var(--color-text-muted); text-align: left; }
}