@layer reset, tokens, base, layout, components, utilities;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
  body { margin: 0; min-height: 100vh; }
  button, input, select, textarea { font: inherit; }
  button { cursor: pointer; }
  img, svg { max-width: 100%; }
}

@layer tokens {
  :root {
    color-scheme: light;
    --olive-900: #35402a;
    --olive-800: #465337;
    --olive-700: #586746;
    --olive-600: #66734f;
    --olive-500: #7b8960;
    --olive-200: #dce2cf;
    --olive-100: #eef1e8;
    --gray-950: #20231f;
    --gray-800: #3f443f;
    --gray-600: #686f68;
    --gray-400: #9ea59d;
    --gray-200: #dfe3de;
    --gray-100: #f2f4f1;
    --paper: #fffefb;
    --danger: #a8403d;
    --warning: #a4661d;
    --success: #3e7450;
    --shadow: 0 18px 48px rgba(47, 56, 43, .12);
    --radius: 18px;
    --radius-sm: 12px;
  }
  html[data-theme="dark"] {
    color-scheme: dark;
    --paper: #1f241e;
    --gray-950: #f5f6f2;
    --gray-800: #e1e4dc;
    --gray-600: #b4b9b0;
    --gray-400: #747b73;
    --gray-200: #3b4239;
    --gray-100: #292f28;
    --olive-100: #30382b;
    --olive-200: #414c38;
    --shadow: 0 18px 48px rgba(0, 0, 0, .3);
  }
}

@layer base {
  body { background: var(--gray-100); color: var(--gray-950); }
  h1, h2, h3, p { margin-top: 0; }
  h1 { font-size: clamp(1.55rem, 3vw, 2.25rem); margin-bottom: .2rem; }
  h2 { font-size: 1.35rem; }
  h3 { font-size: 1rem; }
  a { color: var(--olive-700); }
  label { display: grid; gap: .42rem; color: var(--gray-800); font-size: .88rem; font-weight: 650; }
  input, select, textarea {
    width: 100%; border: 1px solid var(--gray-200); background: var(--paper); color: var(--gray-950);
    border-radius: 11px; padding: .78rem .85rem; outline: none; transition: border-color .15s, box-shadow .15s;
  }
  input:focus, select:focus, textarea:focus { border-color: var(--olive-600); box-shadow: 0 0 0 3px color-mix(in srgb, var(--olive-600) 20%, transparent); }
  textarea { min-height: 92px; resize: vertical; }
  :focus-visible { outline: 3px solid color-mix(in srgb, var(--olive-600) 38%, transparent); outline-offset: 2px; }
}

@layer layout {
  .login-view { min-height: 100vh; display: grid; place-items: center; padding: 1.25rem; background: radial-gradient(circle at top left, var(--olive-200), transparent 34%), linear-gradient(135deg, var(--gray-100), var(--olive-100)); }
  .login-card { width: min(100%, 430px); background: var(--paper); padding: clamp(1.5rem, 5vw, 2.5rem); border: 1px solid var(--gray-200); border-radius: 28px; box-shadow: var(--shadow); }
  .app-shell { min-height: 100vh; display: grid; grid-template-columns: 260px minmax(0, 1fr); }
  .sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 1.25rem; background: var(--olive-900); color: #fff; z-index: 40; }
  .sidebar-brand { display: flex; align-items: center; gap: .75rem; padding: .35rem .3rem 1.4rem; }
  .sidebar-brand small { display: block; opacity: .72; margin-top: .15rem; }
  .nav-list { display: grid; gap: .35rem; }
  .nav-list button { display: flex; align-items: center; gap: .8rem; border: 0; border-radius: 12px; padding: .82rem .9rem; color: rgba(255,255,255,.82); background: transparent; text-align: left; }
  .nav-list button:hover, .nav-list button.active { color: #fff; background: rgba(255,255,255,.13); }
  .sidebar-footer { margin-top: auto; display: grid; gap: .75rem; }
  .content-shell { min-width: 0; }
  .topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 1rem; justify-content: space-between; min-height: 90px; padding: 1rem clamp(1rem, 3vw, 2.25rem); border-bottom: 1px solid var(--gray-200); background: color-mix(in srgb, var(--paper) 90%, transparent); backdrop-filter: blur(14px); }
  .page-content { padding: clamp(1rem, 3vw, 2.25rem); max-width: 1500px; margin: 0 auto; }
  .grid { display: grid; gap: 1rem; }
  .grid.cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .9rem; }
  .form-grid .span-2 { grid-column: 1 / -1; }
  .section-stack { display: grid; gap: 1rem; }
  .toolbar { display: flex; flex-wrap: wrap; gap: .65rem; align-items: center; justify-content: space-between; }
  .toolbar-group { display: flex; flex-wrap: wrap; gap: .55rem; align-items: center; }
  .table-wrap { overflow-x: auto; }
  .backdrop { position: fixed; inset: 0; z-index: 35; border: 0; background: rgba(0,0,0,.4); }
}

@layer components {
  .brand-mark { display: grid; place-items: center; width: 54px; aspect-ratio: 1; border-radius: 50%; background: var(--olive-600); color: #fff; font-size: 1.4rem; margin-bottom: 1.15rem; }
  .brand-mark.small { width: 38px; margin: 0; background: rgba(255,255,255,.14); }
  .eyebrow { margin-bottom: .25rem; text-transform: uppercase; letter-spacing: .12em; font-size: .7rem; font-weight: 800; color: var(--olive-600); }
  .muted { color: var(--gray-600); }
  .form-stack { display: grid; gap: 1rem; margin-top: 1.5rem; }
  .password-wrap { position: relative; display: flex; }
  .password-wrap input { padding-right: 3rem; }
  .password-wrap .icon-button { position: absolute; right: .35rem; top: .32rem; }
  .button { border: 1px solid transparent; border-radius: 11px; padding: .72rem 1rem; font-weight: 750; transition: transform .12s, background .12s; }
  .button:hover { transform: translateY(-1px); }
  .button.primary { background: var(--olive-600); color: #fff; }
  .button.primary:hover { background: var(--olive-700); }
  .button.secondary { color: var(--olive-800); background: var(--olive-100); border-color: var(--olive-200); }
  .button.ghost { background: transparent; border-color: color-mix(in srgb, currentColor 25%, transparent); color: inherit; }
  .button.danger { color: #fff; background: var(--danger); }
  .button.small { padding: .48rem .68rem; font-size: .82rem; }
  .button.full { width: 100%; }
  .icon-button { display: inline-grid; place-items: center; width: 40px; height: 40px; border: 0; border-radius: 10px; background: transparent; color: inherit; }
  .icon-button:hover { background: var(--gray-100); }
  .form-error { min-height: 1.2em; color: var(--danger); margin: 0; font-size: .88rem; }
  .card { background: var(--paper); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 1.1rem; box-shadow: 0 8px 24px rgba(42,50,39,.05); }
  .metric-card strong { display: block; margin-top: .35rem; font-size: clamp(1.35rem, 3vw, 2rem); }
  .metric-card small { color: var(--gray-600); }
  .hero-card { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--olive-800), var(--olive-600)); color: #fff; padding: clamp(1.2rem, 4vw, 2rem); }
  .hero-card .eyebrow, .hero-card .muted { color: rgba(255,255,255,.78); }
  .progress { height: 9px; overflow: hidden; background: var(--gray-200); border-radius: 99px; }
  .progress > span { display: block; height: 100%; background: var(--olive-600); border-radius: inherit; }
  .badge { display: inline-flex; align-items: center; gap: .3rem; width: fit-content; padding: .28rem .55rem; border-radius: 99px; font-size: .72rem; font-weight: 800; background: var(--gray-100); color: var(--gray-800); }
  .badge.success { color: var(--success); background: color-mix(in srgb, var(--success) 12%, var(--paper)); }
  .badge.warning { color: var(--warning); background: color-mix(in srgb, var(--warning) 12%, var(--paper)); }
  .badge.danger { color: var(--danger); background: color-mix(in srgb, var(--danger) 12%, var(--paper)); }
  table { width: 100%; border-collapse: collapse; min-width: 760px; }
  th, td { padding: .82rem .72rem; text-align: left; border-bottom: 1px solid var(--gray-200); vertical-align: middle; }
  th { font-size: .75rem; color: var(--gray-600); text-transform: uppercase; letter-spacing: .06em; }
  .row-actions { display: flex; gap: .35rem; justify-content: flex-end; }
  .empty-state { text-align: center; padding: 2.4rem 1rem; color: var(--gray-600); }
  .list-card { display: grid; gap: .8rem; }
  .list-card-header { display: flex; gap: .8rem; align-items: flex-start; justify-content: space-between; }
  .list-card-meta { display: flex; flex-wrap: wrap; gap: .4rem; }
  .payment-list { display: grid; gap: .5rem; padding-top: .7rem; border-top: 1px solid var(--gray-200); }
  .payment-row { display: grid; grid-template-columns: 1fr auto auto; gap: .8rem; align-items: center; padding: .6rem; border-radius: 10px; background: var(--gray-100); }
  .check-item { display: flex; gap: .9rem; align-items: flex-start; }
  .check-item input { width: 22px; height: 22px; margin-top: .2rem; accent-color: var(--olive-600); }
  .modal { border: 0; padding: 0; background: transparent; width: min(760px, calc(100% - 1.25rem)); max-height: calc(100vh - 1.25rem); }
  .modal::backdrop { background: rgba(19,24,18,.58); backdrop-filter: blur(3px); }
  .modal-card { margin: 0; max-height: calc(100vh - 1.25rem); overflow: hidden; border: 1px solid var(--gray-200); border-radius: 22px; background: var(--paper); color: var(--gray-950); box-shadow: var(--shadow); }
  .modal-header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.1rem; border-bottom: 1px solid var(--gray-200); }
  .modal-body { padding: 1.1rem; max-height: calc(100vh - 120px); overflow: auto; }
  .modal-actions { display: flex; justify-content: flex-end; gap: .65rem; padding-top: 1rem; }
  .toast-region { position: fixed; z-index: 100; right: 1rem; bottom: 1rem; display: grid; gap: .6rem; width: min(390px, calc(100% - 2rem)); }
  .toast { padding: .9rem 1rem; border-radius: 12px; color: #fff; background: var(--olive-800); box-shadow: var(--shadow); animation: toast-in .2s ease-out; }
  .toast.error { background: var(--danger); }
  @keyframes toast-in { from { opacity: 0; transform: translateY(10px); } }
}

@layer utilities {
  [hidden] { display: none !important; }
  .mobile-only { display: none; }
  .text-right { text-align: right; }
  .nowrap { white-space: nowrap; }
  .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
  @media (max-width: 1080px) { .grid.cards { grid-template-columns: repeat(2, minmax(0,1fr)); } }
  @media (max-width: 800px) {
    .mobile-only { display: inline-grid; }
    .app-shell { display: block; }
    .sidebar { position: fixed; left: 0; transform: translateX(-105%); width: min(86vw, 290px); transition: transform .2s ease; }
    .sidebar.open { transform: translateX(0); }
    .topbar { min-height: 78px; }
    .topbar .button.secondary { padding-inline: .7rem; }
    .form-grid, .grid.two { grid-template-columns: 1fr; }
    .form-grid .span-2 { grid-column: auto; }
  }
  @media (max-width: 560px) {
    .grid.cards { grid-template-columns: 1fr; }
    .page-content { padding: .8rem; }
    .topbar { padding: .75rem; gap: .55rem; }
    .topbar h1 { font-size: 1.25rem; }
    .toolbar { align-items: stretch; }
    .toolbar-group { width: 100%; }
    .toolbar-group > * { flex: 1 1 140px; }
    .payment-row { grid-template-columns: 1fr; }
  }
  @media print {
    .sidebar, .topbar, .toolbar, .row-actions, .toast-region { display: none !important; }
    .app-shell { display: block; }
    .page-content { padding: 0; }
    .card { box-shadow: none; break-inside: avoid; }
    body { background: #fff; }
  }
  @media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; } }
}

@layer components {
  progress.native-progress { width: 100%; height: 10px; border: 0; border-radius: 99px; overflow: hidden; background: var(--gray-200); }
  progress.native-progress::-webkit-progress-bar { background: var(--gray-200); border-radius: 99px; }
  progress.native-progress::-webkit-progress-value { background: var(--olive-600); border-radius: 99px; }
  progress.native-progress::-moz-progress-bar { background: var(--olive-600); border-radius: 99px; }
}