/*
 * IndoStock — base styles (vanilla CSS, no build step).
 * Organized with cascade layers so component styles are easy to extend.
 */
@layer reset, base, layout, components, utilities;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
  ul[role="list"], ol[role="list"] { list-style: none; padding: 0; margin: 0; }
}

@layer base {
  :root {
    --bg: #0f172a;
    --surface: #1e293b;
    --surface-2: #273449;
    --border: #334155;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --radius: 10px;
    --maxw: 1140px;
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }
  a { color: #60a5fa; text-decoration: none; }
  a:hover { text-decoration: underline; }
  h1 { font-size: 1.6rem; margin-bottom: .25rem; }
  h2 { font-size: 1.2rem; margin: 1.5rem 0 .75rem; }
}

@layer layout {
  .navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: .75rem 1.25rem;
  }
  .navbar-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.25rem;
  }
  .brand { font-weight: 700; font-size: 1.1rem; color: var(--text); }
  .brand:hover { text-decoration: none; }
  .nav-links { display: flex; gap: 1rem; align-items: center; margin-left: auto; }
  .nav-links a { color: var(--muted); }
  .nav-links a:hover { color: var(--text); text-decoration: none; }
  .container { max-width: var(--maxw); margin: 1.5rem auto; padding: 0 1.25rem; }
}

@layer components {
  .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
  }
  .grid { display: grid; gap: 1.25rem; }
  .grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

  table { width: 100%; border-collapse: collapse; font-size: .9rem; }
  th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--border); }
  th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: .72rem; letter-spacing: .03em; }
  tbody tr:hover { background: var(--surface-2); }

  .btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: .5rem .9rem;
    font-size: .9rem;
    cursor: pointer;
    text-decoration: none;
  }
  .btn:hover { background: var(--primary-hover); text-decoration: none; }
  .btn-secondary { background: var(--surface-2); border: 1px solid var(--border); }
  .btn-danger { background: var(--danger); }
  .btn-sm { padding: .3rem .6rem; font-size: .8rem; }

  .form-field { margin-bottom: 1rem; }
  .form-field label { display: block; margin-bottom: .3rem; color: var(--muted); font-size: .85rem; }
  input[type=text], input[type=email], input[type=password], input[type=number], textarea, select {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .55rem .65rem;
    color: var(--text);
    font-size: .95rem;
  }
  input:focus, textarea:focus, select:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

  .flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
  .flash-notice { background: rgba(22,163,74,.15); border: 1px solid var(--success); color: #86efac; }
  .flash-alert { background: rgba(220,38,38,.15); border: 1px solid var(--danger); color: #fca5a5; }

  .badge { display: inline-block; padding: .15rem .5rem; border-radius: 999px; font-size: .72rem; font-weight: 600; }
  .badge-admin { background: rgba(37,99,235,.2); color: #93c5fd; }
  .badge-success { background: rgba(22,163,74,.2); color: #86efac; }
  .badge-warning { background: rgba(217,119,6,.2); color: #fcd34d; }
  .badge-danger { background: rgba(220,38,38,.2); color: #fca5a5; }

  .auth-wrap { max-width: 380px; margin: 4rem auto; }
  .errors { background: rgba(220,38,38,.12); border: 1px solid var(--danger); color: #fca5a5; padding: .75rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: .88rem; }
}

@layer components {
  .stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
  .stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.1rem; }
  .stat .label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
  .stat .value { font-size: 1.8rem; font-weight: 700; margin-top: .2rem; }
  .dash-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 1.25rem; align-items: start; }
  @media (max-width: 880px) { .dash-grid { grid-template-columns: 1fr; } }
  .section-title { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: .5rem; }
  .section-title a { font-size: .82rem; }
}

@layer utilities {
  .muted { color: var(--muted); }
  .text-success { color: #4ade80; }
  .text-danger { color: #f87171; }
  .text-right { text-align: right; }
  .flex { display: flex; gap: .5rem; align-items: center; }
  .between { justify-content: space-between; }
  .mt-0 { margin-top: 0; }
  .big-number { font-size: 2rem; font-weight: 700; }
}