*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --black: #1e1b4b; --ink: #2c2c2a; --muted: #888780;
  --border: #e3e1da; --surface: #f6f4ef; --white: #ffffff;
  --green: #27500a; --green-bg: #eaf3de;
  --amber: #633806; --amber-bg: #faeeda;
  --red: #791f1f; --red-bg: #fcebeb;
  --blue: #0d9488; --blue-bg: #f0fdfa;
  --radius: 6px; --radius-lg: 10px;
}
html { font-size: 15px; }
body { font-family: 'DM Sans', sans-serif; color: var(--ink); background: var(--surface); min-height: 100vh; display: flex; flex-direction: column; }

.nav { display: flex; align-items: center; height: 52px; padding: 0 1.25rem; background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; gap: .5rem; overflow: visible; min-width: 0; }
.nav-logo { display: flex; align-items: center; text-decoration: none; margin-right: 1.5rem; flex-shrink: 0; }
.nav-links { display: flex; list-style: none; flex: 1; min-width: 0; overflow-x: auto; overflow-y: visible; scrollbar-width: none; }
.nav-link { display: block; padding: 0 .75rem; line-height: 52px; font-size: .8125rem; color: var(--muted); text-decoration: none; border-bottom: 2px solid transparent; white-space: nowrap; }
.nav-link:hover { color: var(--black); }
.nav-link.active { color: var(--black); border-bottom-color: var(--black); }
.nav-links::-webkit-scrollbar { display: none; }
.nav-logout { flex-shrink: 0; font-size: .8125rem; color: var(--muted); text-decoration: none; white-space: nowrap; padding: 0 .5rem; }
.nav-logout:hover { color: var(--black); }

.main { flex: 1; padding: 2.5rem 2rem; max-width: 1280px; margin: 0 auto; width: 100%; }
.footer { padding: 1.25rem 2rem; font-size: .75rem; color: var(--muted); border-top: 1px solid var(--border); }

.page-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 1.75rem; gap: 1rem; }
.page-title { font-size: 1.375rem; font-weight: 500; color: var(--black); }
.page-subtitle { font-size: .875rem; color: var(--muted); margin-top: .2rem; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 2rem; }
.stat { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1rem 1.125rem; }
.stat-label { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: .35rem; }
.stat-value { font-size: 1.625rem; font-weight: 500; color: var(--black); line-height: 1; }

.card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.card-header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); }
.card-title { font-size: .875rem; font-weight: 500; color: var(--black); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead th { padding: .625rem 1rem; text-align: left; font-size: .75rem; font-weight: 500; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); border-bottom: 1px solid var(--border); white-space: nowrap; }
tbody td { padding: .75rem 1rem; border-bottom: 1px solid var(--border); color: var(--ink); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--surface); }
.td-mono { font-family: 'DM Mono', monospace; font-size: .8125rem; color: var(--muted); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: .75rem; font-weight: 500; white-space: nowrap; }
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-amber { background: var(--amber-bg); color: var(--amber); }
.badge-red   { background: var(--red-bg);   color: var(--red); }
.badge-blue  { background: var(--blue-bg);  color: var(--blue); }
.badge-gray  { background: #f1efe8; color: #5f5e5a; }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 0 1rem; height: 34px; border-radius: var(--radius); font-family: inherit; font-size: .8125rem; font-weight: 500; cursor: pointer; text-decoration: none; border: 1px solid var(--border); background: var(--white); color: var(--ink); }
.btn:hover { background: var(--surface); }
.btn-primary { background: var(--black); color: var(--white); border-color: var(--black); }
.btn-primary:hover { background: #2c2c2a; }
.btn-danger { border-color: #f09595; color: var(--red); }
.btn-danger:hover { background: var(--red-bg); }
.btn-sm { height: 28px; padding: 0 .75rem; font-size: .75rem; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem 1.5rem; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full { grid-column: 1 / -1; }
label { font-size: .8125rem; font-weight: 500; color: var(--ink); }
label .req { color: var(--red); }
input[type=text], input[type=date], input[type=number], input[type=password], select, textarea { width: 100%; height: 36px; padding: 0 10px; border: 1px solid var(--border); border-radius: var(--radius); font-family: inherit; font-size: .875rem; color: var(--ink); background: var(--white); appearance: none; }
textarea { height: auto; padding: 8px 10px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--black); }
.form-actions { display: flex; gap: 10px; align-items: center; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }

.alert { padding: .75rem 1rem; border-radius: var(--radius); font-size: .875rem; margin-bottom: 1.25rem; }
.alert-success { background: var(--green-bg); color: var(--green); }
.alert-error   { background: var(--red-bg);   color: var(--red); }

.empty { text-align: center; padding: 3rem 1rem; color: var(--muted); font-size: .875rem; }
.flex-gap { display: flex; gap: 8px; align-items: center; }
.text-muted { color: var(--muted); }
.text-right { text-align: right; }
.avail-bar { display: flex; align-items: center; gap: 8px; }
.avail-pip { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.avail-ok  { background: #639922; }
.avail-low { background: #BA7517; }
.avail-out { background: #E24B4A; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--surface); }
.login-card { width: 340px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2.25rem 2rem; }
.login-logo { font-size: 1.125rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 1.75rem; }