/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary:   #2563eb;
  --primary-d: #1d4ed8;
  --danger:    #dc2626;
  --success:   #16a34a;
  --warning:   #d97706;
  --bg:        #f1f5f9;
  --surface:   #ffffff;
  --border:    #e2e8f0;
  --text:      #1e293b;
  --muted:     #64748b;
  --nav-bg:    #1e293b;
  --radius:    8px;
  --shadow:    0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
}
html { font-size: 15px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Navbar ───────────────────────────────────────────────────────────────── */
.navbar {
  background: var(--nav-bg);
  padding: .75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav-brand { color: #fff; font-size: 1.1rem; font-weight: 700; letter-spacing: .02em; }
.nav-links  { display: flex; align-items: center; gap: .25rem; flex-wrap: wrap; }
.nav-links a {
  color: #cbd5e1;
  text-decoration: none;
  padding: .4rem .75rem;
  border-radius: var(--radius);
  font-size: .9rem;
  transition: background .15s, color .15s;
}
.nav-links a:hover, .nav-links a.active { background: rgba(255,255,255,.12); color: #fff; }
.nav-links .btn-logout { color: #f87171; }
.nav-links .btn-logout:hover { background: rgba(248,113,113,.15); }

/* ── Container ────────────────────────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem; flex: 1; }

/* ── Page header ──────────────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
}
.page-header h1 { font-size: 1.5rem; font-weight: 700; }

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.card h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-size: .8rem; }

/* ── Alerts ───────────────────────────────────────────────────────────────── */
.alert {
  padding: .75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: .9rem;
  border-left: 4px solid transparent;
}
.alert-success { background: #f0fdf4; border-color: var(--success); color: #14532d; }
.alert-danger   { background: #fef2f2; border-color: var(--danger);  color: #7f1d1d; }
.alert-warning  { background: #fffbeb; border-color: var(--warning); color: #78350f; }
.alert-info     { background: #eff6ff; border-color: var(--primary); color: #1e3a8a; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .55rem 1.1rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: .9rem;
  font-weight: 500;
  text-decoration: none;
  transition: opacity .15s, transform .1s;
  white-space: nowrap;
}
.btn:hover { opacity: .88; }
.btn:active { transform: scale(.98); }
.btn-primary   { background: var(--primary);   color: #fff; }
.btn-primary:hover { background: var(--primary-d); opacity: 1; }
.btn-secondary { background: #e2e8f0; color: var(--text); }
.btn-danger    { background: var(--danger);    color: #fff; }
.btn-sm        { padding: .3rem .7rem; font-size: .82rem; }
.btn-full      { width: 100%; justify-content: center; }

/* ── Forms ────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.1rem; }
.form-row   { display: flex; gap: 1rem; }
.form-row .form-group { flex: 1; }
.form-group label { display: block; margin-bottom: .35rem; font-size: .88rem; font-weight: 500; color: var(--text); }
.form-group label small { font-weight: 400; color: var(--muted); }
.form-group input[type="text"],
.form-group input[type="password"],
.form-group select,
.form-group textarea,
.form-select {
  width: 100%;
  padding: .55rem .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .92rem;
  background: #fff;
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.form-group input[readonly] { background: #f8fafc; color: var(--muted); }
.checkbox-group label { display: flex; align-items: center; gap: .5rem; font-weight: 400; cursor: pointer; }
.checkbox-group input[type="checkbox"] { width: auto; }
.form-actions { display: flex; gap: .75rem; margin-top: 1.5rem; flex-wrap: wrap; }

/* ── Code editor ──────────────────────────────────────────────────────────── */
.code-editor {
  font-family: "Fira Mono", "Consolas", "Monaco", monospace;
  font-size: .82rem;
  line-height: 1.5;
  resize: vertical;
  tab-size: 2;
}

/* ── Table ────────────────────────────────────────────────────────────────── */
.table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.table th { background: #f8fafc; color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: .75rem; letter-spacing: .05em; padding: .6rem .75rem; text-align: left; border-bottom: 2px solid var(--border); }
.table td { padding: .6rem .75rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: #f8fafc; }

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: .2em .6em;
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.badge-done       { background: #dcfce7; color: #166534; }
.badge-pending    { background: #fef9c3; color: #713f12; }
.badge-processing { background: #dbeafe; color: #1e3a8a; }
.badge-error      { background: #fee2e2; color: #7f1d1d; }
.badge-cancelled  { background: #f1f5f9; color: #64748b; }

/* ── Stats grid (admin) ───────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  text-align: center;
}
.stat-num   { font-size: 2.5rem; font-weight: 700; color: var(--primary); }
.stat-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: .25rem 0 .75rem; }

/* ── Template grid ────────────────────────────────────────────────────────── */
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.template-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
  text-align: center;
  transition: box-shadow .15s;
}
.template-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.1); }
.template-icon { font-size: 2rem; margin-bottom: .5rem; }
.template-name { font-weight: 600; margin-bottom: .25rem; }
.template-desc { font-size: .82rem; color: var(--muted); margin-bottom: .75rem; }

/* ── File drop zone ───────────────────────────────────────────────────────── */
.file-drop {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem 1rem;
  text-align: center;
  transition: border-color .2s, background .2s;
  cursor: pointer;
}
.file-drop:hover { border-color: var(--primary); background: #eff6ff; }
.file-drop input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.drop-label  { display: flex; flex-direction: column; gap: .35rem; pointer-events: none; }
.drop-icon   { font-size: 2rem; }
.drop-hint   { font-size: .8rem; color: var(--muted); }
.file-selected { color: var(--success); font-weight: 600; }

/* ── Schema hint ──────────────────────────────────────────────────────────── */
.schema-hint {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius);
  padding: .75rem 1rem;
  margin-bottom: 1rem;
  font-size: .88rem;
}
.schema-hint h4 { font-size: .85rem; font-weight: 600; margin-bottom: .5rem; }
.schema-hint ul { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; }
.schema-hint li {
  background: #fff;
  border: 1px solid #bfdbfe;
  border-radius: 99px;
  padding: .15em .7em;
  font-size: .82rem;
}
.required-badge {
  background: var(--danger);
  color: #fff;
  font-size: .7rem;
  border-radius: 99px;
  padding: .1em .45em;
  vertical-align: middle;
  margin-left: .2rem;
}
.help-link { font-size: .8rem; color: var(--primary); margin-left: .5rem; text-decoration: none; }
.help-link:hover { text-decoration: underline; }

/* ── Login page ───────────────────────────────────────────────────────────── */
.login-page {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--surface);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
  text-align: center;
}
.login-logo { font-size: 3rem; margin-bottom: .5rem; }
.login-card h1 { font-size: 1.4rem; margin-bottom: .25rem; }
.login-sub  { color: var(--muted); font-size: .85rem; margin-bottom: 1.5rem; }
.login-card .form-group { text-align: left; }
.login-card .btn { margin-top: .5rem; }

/* ── Footer ───────────────────────────────────────────────────────────────── */
footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 1rem; border-top: 1px solid var(--border); background: var(--surface); }

/* ── Helpers ──────────────────────────────────────────────────────────────── */
.hidden    { display: none !important; }
.text-muted { color: var(--muted); }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .navbar { flex-direction: column; align-items: flex-start; }
  .form-row { flex-direction: column; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .table { font-size: .8rem; }
}