/* Apple-inspired clean UI/UX theme overrides */
/* Focus: minimal, typographic clarity, gentle depth, native system font */

:root {
  --bg: #fbfbfd;
  --bg-soft: #ffffff;
  --bg-elev: #ffffff;
  --fg: #111111;
  --muted: #6e6e73;
  --hairline: rgba(0,0,0,0.08);
  --shadow-1: 0 1px 2px rgba(0,0,0,0.04), 0 6px 18px rgba(0,0,0,0.06);
  --shadow-2: 0 2px 6px rgba(0,0,0,0.08), 0 10px 24px rgba(0,0,0,0.10);
  --radius: 14px;
  --radius-lg: 18px;
  --radius-xl: 22px;
  --accent: #0a84ff;
  --accent-press: #006fe5;
  --success: #34c759;
  --warning: #ff9f0a;
  --danger: #ff3b30;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --bg-soft: #0f0f10;
    --bg-elev: #1c1c1e;
    --fg: #f5f5f7;
    --muted: #a1a1a6;
    --hairline: rgba(255,255,255,0.08);
    --shadow-1: 0 1px 2px rgba(0,0,0,0.5), 0 6px 18px rgba(0,0,0,0.6);
    --shadow-2: 0 2px 6px rgba(0,0,0,0.6), 0 10px 24px rgba(0,0,0,0.7);
    --accent: #0a84ff; /* iOS Blue remains */
    --accent-press: #0071e3;
  }
}

html { font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Links */
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, .btn:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 50%, transparent); outline-offset: 2px; }

/* Cards */
.card {
  background-color: var(--bg-elev);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}
.card:hover { box-shadow: var(--shadow-2); }
.card .card-header {
  background: transparent;
  border-bottom: 1px solid var(--hairline);
  padding: .85rem 1rem;
}
.card .card-title { margin: 0; font-weight: 600; letter-spacing: .1px; }
.card .card-body { padding: 1rem; }

/* Navbar (glass) */
.navbar {
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  background: color-mix(in srgb, var(--bg-soft) 74%, transparent);
  border-bottom: 1px solid var(--hairline);
}

/* Sidebar minimal */
.sidebar {
  background: var(--bg-elev) !important;
  border-right: 1px solid var(--hairline);
}
.sidebar .sidebar-wrapper { background: transparent; }
@supports (backdrop-filter: blur(14px)) {
  .sidebar { background: color-mix(in srgb, var(--bg-elev) 78%, transparent) !important; backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); }
}
.sidebar .nav .nav-item > a {
  border-radius: 10px;
  padding: .6rem .75rem;
  color: var(--fg);
}
.sidebar .nav .nav-item.active > a,
.sidebar .nav .nav-item > a:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

/* Buttons */
.btn { border-radius: 12px; border: 1px solid transparent; font-weight: 600; }
.btn:active { transform: translateY(1px); }
.btn-primary {
  color: #fff;
  background: linear-gradient(180deg, var(--accent), var(--accent-press));
  border-color: color-mix(in srgb, var(--accent) 85%, black);
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-primary:active { filter: brightness(0.97); }

.btn-success { color:#fff; background: linear-gradient(180deg, var(--success), #1fae41); border-color: #1fae41; }
.btn-warning { color:#111; background: linear-gradient(180deg, var(--warning), #d27f00); border-color: #d27f00; }
.btn-danger { color:#fff; background: linear-gradient(180deg, var(--danger), #d62222); border-color: #d62222; }

.btn-outline-primary { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 60%, transparent); }
.btn-outline-primary:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); }

/* Forms */
.form-control, .form-select {
  background: var(--bg-soft);
  color: var(--fg);
  border-radius: 12px;
  border: 1px solid var(--hairline);
  padding: .6rem .75rem;
}
.form-control:focus, .form-select:focus {
  border-color: color-mix(in srgb, var(--accent) 65%, transparent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 15%, transparent);
}
.input-group-text { border-radius: 12px; background: var(--bg-soft); border-color: var(--hairline); }
.form-check-input { border-radius: 999px; border-color: var(--hairline); }
.form-check-input:checked { background-color: var(--accent); border-color: var(--accent); }

/* Tables */
.table { color: var(--fg); }
.table thead th { border-bottom: 1px solid var(--hairline); font-weight: 600; }
.table tbody td { border-top: 1px solid var(--hairline); }
.table-hover tbody tr:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }

/* Badges */
.badge { border-radius: 999px; font-weight: 600; }
.text-muted { color: var(--muted) !important; }

/* Dropdown */
.dropdown-menu {
  border-radius: 12px;
  border: 1px solid var(--hairline);
  background: var(--bg-elev);
  box-shadow: var(--shadow-2);
}

/* Footer */
.footer { border-top: 1px solid var(--hairline); background: var(--bg-elev); }

/* Hairline separators */
.separator-solid { border-color: var(--hairline) !important; }

/* Smooth transitions */
* { transition: background-color .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease; }

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

/* Optional: tighter headings */
h1,h2,h3,h4,h5 { letter-spacing: -.02em; }

/* Login card centering helpers if used */
.login-card { max-width: 420px; border-radius: var(--radius-lg); box-shadow: var(--shadow-2); }