:root {
  --green: #7ed957;
  --green-dark: #5fbf3a;
  --orange: #ffbd59;
  --orange-dark: #f0a83a;
  --purple: #4c56af;
  --purple-deep: #353c87;
  --ink: #1f2438;
  --muted: #6b728a;
  --line: rgba(76, 86, 175, 0.16);
  --panel: rgba(255, 255, 255, 0.88);
  --shadow: 0 24px 60px rgba(53, 60, 135, 0.18);
  --radius: 18px;
  --font: "Segoe UI", "Trebuchet MS", "Avenir Next", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 18%, rgba(126, 217, 87, 0.28), transparent 34%),
    radial-gradient(circle at 88% 12%, rgba(255, 189, 89, 0.34), transparent 30%),
    radial-gradient(circle at 70% 88%, rgba(76, 86, 175, 0.22), transparent 36%),
    linear-gradient(160deg, #f7f9ff 0%, #eef4ff 42%, #fff8ef 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(76, 86, 175, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76, 86, 175, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 85%);
}

.shell {
  position: relative;
  width: min(960px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3.5rem;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.75rem;
  text-align: center;
}

.brand img {
  width: min(320px, 82vw);
  height: auto;
  filter: drop-shadow(0 10px 24px rgba(76, 86, 175, 0.18));
}

.brand p,
.secure-line {
  margin: 0;
  max-width: 34rem;
  color: var(--purple-deep);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.5;
}

.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;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(126, 217, 87, 0.12), rgba(255, 189, 89, 0.12));
}

.panel-head h1 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.panel-body {
  padding: 1.35rem;
}

.login-wrap {
  width: min(440px, 100%);
  margin: 0 auto;
}

.login-wrap .panel-body {
  padding: 1.6rem 1.5rem 1.7rem;
}

label {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--purple-deep);
}

.field {
  width: 100%;
  padding: 0.85rem 0.95rem;
  border: 1px solid rgba(76, 86, 175, 0.22);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 4px rgba(76, 86, 175, 0.14);
}

.actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.78rem 1.25rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
  color: #163014;
  box-shadow: 0 10px 22px rgba(126, 217, 87, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #8ee265 0%, var(--green) 100%);
}

.btn-accent {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: #4a3208;
  box-shadow: 0 10px 22px rgba(255, 189, 89, 0.35);
}

.btn-ghost {
  background: rgba(76, 86, 175, 0.08);
  color: var(--purple-deep);
}

.alert {
  margin: 0 0 1rem;
  padding: 0.8rem 0.95rem;
  border-radius: 12px;
  font-size: 0.92rem;
}

.alert-error {
  background: #fff1f1;
  color: #9b1c1c;
  border: 1px solid #ffc9c9;
}

.alert-info {
  background: #f3f7ff;
  color: var(--purple-deep);
  border: 1px solid rgba(76, 86, 175, 0.18);
}

.alert-warn {
  background: #fff7e8;
  color: #7a4d08;
  border: 1px solid rgba(255, 189, 89, 0.55);
  font-weight: 700;
  text-align: center;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(76, 86, 175, 0.08);
  color: var(--purple-deep);
  font-size: 0.82rem;
  font-weight: 600;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

th,
td {
  padding: 0.9rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: rgba(247, 249, 255, 0.9);
}

tr:last-child td {
  border-bottom: 0;
}

.file-name {
  font-weight: 700;
  color: var(--ink);
  word-break: break-word;
}

.file-meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.count {
  display: inline-flex;
  min-width: 2rem;
  justify-content: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 189, 89, 0.22);
  color: #7a4d08;
  font-weight: 700;
  font-size: 0.86rem;
}

.empty {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--muted);
}

.footer-note {
  margin-top: 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 640px) {
  .panel-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}