:root {
  --bg-page: #eef1f7;
  --bg-panel: #ffffff;
  --border-soft: #e1e6ef;
  --ink: #16213a;
  --ink-muted: #5b6785;
  --navy: #0f1b2d;
  --teal: #2ec4b6;
  --blue: #3b82f6;
  --danger: #e0344c;
  --warn: #d98c1f;
  --success: #1f9d5a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg-page);
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 2rem;
  background: var(--navy);
  color: #fff;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.brand-mark {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
  color: #fff;
}

.brand-accent {
  color: var(--teal);
}

.brand-tag {
  color: #9fb0c9;
  font-size: 0.85rem;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.signed-in {
  color: #cfd9ec;
  font-size: 0.85rem;
}

.badge {
  border: 1px solid var(--teal);
  color: var(--teal);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: var(--ink-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: 0.01em;
  color: var(--navy);
}

.hero p {
  margin: 0.5rem 0 0;
  color: var(--ink-muted);
}

.sequence {
  font-weight: 700;
  color: var(--teal) !important;
  letter-spacing: 0.02em;
}

.panel {
  margin-top: 1.5rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 1.4rem 1.6rem;
  box-shadow: 0 1px 3px rgba(15, 27, 45, 0.06);
}

.panel h2 {
  margin-top: 0;
  font-size: 1.1rem;
  color: var(--navy);
}

.hidden {
  display: none !important;
}

form {
  display: grid;
  gap: 0.9rem;
}

label {
  font-weight: 600;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

input[type="file"],
input[type="text"],
input[type="password"] {
  padding: 0.65rem 0.8rem;
  background: #fff;
  border: 1px solid #c7cede;
  border-radius: 8px;
  color: var(--ink);
  font-size: 0.95rem;
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.btn {
  border: 0;
  border-radius: 8px;
  font-weight: 700;
  padding: 0.65rem 1.2rem;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease, opacity 0.15s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn:not(:disabled):hover {
  filter: brightness(1.05);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
}

.btn-accent {
  background: var(--teal);
  color: #062824;
}

.btn-outline {
  background: transparent;
  border: 1px solid #4a5a7a;
  color: #e8edf7;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
}

.status-panel p {
  margin: 0;
  font-weight: 600;
}

.status-panel.error {
  border-color: var(--danger);
  background: #fdf1f2;
}

.status-panel.error p {
  color: var(--danger);
}

.status-panel.ok {
  border-color: var(--teal);
  background: #f0fbf9;
}

.status-panel.ok p {
  color: #0d7d70;
}

.header-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.6rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.header-grid div span {
  display: block;
}

.header-grid .label {
  color: var(--ink-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.header-grid .value {
  font-weight: 600;
  color: var(--navy);
}

.summary-chips {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.1rem;
}

.chip {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid var(--border-soft);
  background: #fff;
}

.chip-exact { color: var(--success); border-color: var(--success); }
.chip-short { color: var(--danger); border-color: var(--danger); }
.chip-over { color: var(--warn); border-color: var(--warn); }
.chip-unvalidated { color: var(--ink-muted); border-color: var(--border-soft); }

.asn-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.asn-table th {
  text-align: left;
  color: var(--ink-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border-soft);
}

.asn-table td {
  padding: 0.55rem 0.6rem;
  border-bottom: 1px solid #f0f2f7;
}

.status-pill {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.status-exact { background: rgba(31, 157, 90, 0.12); color: var(--success); }
.status-short { background: rgba(224, 52, 76, 0.12); color: var(--danger); }
.status-over { background: rgba(217, 140, 31, 0.12); color: var(--warn); }
.status-unvalidated { background: rgba(91, 103, 133, 0.1); color: var(--ink-muted); }

pre {
  margin-top: 0.4rem;
  background: #f7f8fb;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 1rem;
  overflow: auto;
  white-space: pre-wrap;
  color: var(--ink);
}

/* Login page */
.login-body {
  background: var(--bg-page);
}

.login-shell {
  max-width: 420px;
  margin: 4rem auto 0;
  padding: 0 1.5rem;
}

.login-panel {
  margin-top: 0;
}

.login-panel h1 {
  margin: 0 0 0.4rem;
  font-size: 1.5rem;
  color: var(--navy);
}

.login-sub {
  margin: 0 0 1.2rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.login-form {
  gap: 0.6rem;
}

.login-form .btn {
  margin-top: 0.6rem;
}

.login-error {
  background: #fdf1f2;
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}