:root {
  --bg-deep: #1a1410;
  --bg-mid: #2a1f18;
  --ink: #f3e6d4;
  --ink-muted: #c4b09a;
  --accent: #d4783a;
  --accent-strong: #e8924f;
  --line: rgba(243, 230, 212, 0.14);
  --danger: #e26b5a;
  --ok: #7dba7a;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --font-display: "ZCOOL XiaoWei", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg-deep);
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 60% at 15% 10%, rgba(212, 120, 58, 0.28), transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 20%, rgba(120, 72, 40, 0.35), transparent 50%),
    linear-gradient(165deg, #241910 0%, #120e0b 45%, #1c1511 100%);
  z-index: -2;
  animation: drift 18s ease-in-out infinite alternate;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.08;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes drift {
  from { transform: scale(1) translateY(0); }
  to { transform: scale(1.05) translateY(-12px); }
}

.shell {
  width: min(920px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: clamp(3.5rem, 12vh, 7rem) 0 4rem;
}

.hero {
  animation: rise 0.8s ease both;
}

.hero--unlocked {
  margin-bottom: 2.5rem;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.brand {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 4.8rem);
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--ink);
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.headline {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.lede {
  margin: 0 0 2rem;
  max-width: 28rem;
  color: var(--ink-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.unlock-form {
  display: grid;
  gap: 1rem;
  max-width: 24rem;
  animation: rise 1s ease 0.15s both;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field__label {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.field__input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 247, 236, 0.05);
  color: var(--ink);
  border-radius: 0;
  padding: 0.95rem 1rem;
  font: inherit;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.field__input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(212, 120, 58, 0.7);
  background: rgba(255, 247, 236, 0.08);
}

.field textarea {
  min-height: 6rem;
  resize: vertical;
}

.form-error {
  margin: 0;
  color: var(--danger);
  font-size: 0.95rem;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.9rem 1.35rem;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.btn--primary {
  background: var(--accent);
  color: #1a120c;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.btn--primary:hover {
  background: var(--accent-strong);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-muted);
}

.btn--ghost:hover {
  color: var(--ink);
  border-color: rgba(243, 230, 212, 0.35);
}

.btn--download {
  background: transparent;
  border-color: rgba(212, 120, 58, 0.55);
  color: var(--accent-strong);
  min-width: 6.5rem;
  letter-spacing: 0.08em;
}

.btn--download:hover {
  background: rgba(212, 120, 58, 0.14);
}

.btn--danger {
  background: transparent;
  border-color: rgba(226, 107, 90, 0.5);
  color: var(--danger);
}

.lock-form {
  margin-top: 1.25rem;
}

.downloads {
  animation: rise 0.9s ease 0.1s both;
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
}

.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
}

.file-row__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
}

.file-row__desc,
.file-row__info,
.empty {
  margin: 0;
  color: var(--ink-muted);
  line-height: 1.6;
}

.file-row__info {
  margin-top: 0.55rem;
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.empty {
  padding: 1rem 0 2rem;
}

@media (max-width: 720px) {
  .file-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn--download {
    width: 100%;
  }
}

/* Backend */
.admin-body {
  min-height: 100vh;
}

.admin-shell {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.admin-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.admin-top h1 {
  margin: 0.2rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 400;
}

.admin-top .eyebrow {
  margin: 0;
  color: var(--ink-muted);
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.admin-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.panel {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 0.5rem;
  margin-bottom: 2rem;
  animation: rise 0.7s ease both;
}

.panel h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.flash {
  margin: 0 0 1.25rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  color: var(--ink);
}

.flash--ok {
  border-color: rgba(125, 186, 122, 0.45);
  color: var(--ok);
}

.flash--error {
  border-color: rgba(226, 107, 90, 0.45);
  color: var(--danger);
}

.table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  text-align: left;
  padding: 0.9rem 0.55rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-size: 0.95rem;
}

.admin-table th {
  color: var(--ink-muted);
  font-weight: 500;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.8rem;
}

.badge--on {
  border-color: rgba(125, 186, 122, 0.5);
  color: var(--ok);
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.login-card {
  width: min(420px, calc(100% - 2rem));
  margin: 12vh auto 0;
  animation: rise 0.8s ease both;
}

.login-card .brand {
  font-size: clamp(2.2rem, 7vw, 3.2rem);
  margin-bottom: 0.75rem;
}

.hint {
  margin: 0.75rem 0 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.source-panel {
  display: grid;
  gap: 1rem;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink-muted);
}

.pass-groups {
  display: grid;
  gap: 1.25rem;
}

.pass-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.pass-tile {
  appearance: none;
  border: 1px solid rgba(243, 230, 212, 0.16);
  background:
    linear-gradient(160deg, rgba(212, 120, 58, 0.18), rgba(255, 247, 236, 0.03) 42%),
    rgba(20, 15, 12, 0.55);
  color: inherit;
  text-align: left;
  padding: 1.2rem 1.15rem 1.05rem;
  cursor: pointer;
  min-height: 168px;
  display: grid;
  align-content: start;
  gap: 0.45rem;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  font: inherit;
}

.pass-tile:hover,
.pass-tile.is-active {
  transform: translateY(-2px);
  border-color: rgba(212, 120, 58, 0.55);
}

.pass-tile__label {
  color: var(--ink-muted);
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.pass-tile__code {
  font-family: var(--font-display);
  font-size: 1.85rem;
  letter-spacing: 0.06em;
  line-height: 1.15;
}

.pass-tile__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  color: var(--ink-muted);
  font-size: 0.88rem;
}

.pass-tile__preview {
  color: rgba(243, 230, 212, 0.72);
  font-size: 0.88rem;
  line-height: 1.45;
  min-height: 2.5em;
}

.pass-tile__cta {
  margin-top: auto;
  color: var(--accent-strong);
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}

.pass-drawer {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
}

.pass-drawer.is-open {
  display: block;
}

.pass-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 6, 5, 0.72);
}

.pass-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(520px, 100%);
  height: 100%;
  overflow: auto;
  background:
    linear-gradient(180deg, rgba(42, 31, 24, 0.98), rgba(18, 14, 11, 0.98));
  border-left: 1px solid var(--line);
  padding: 1.35rem 1.25rem 2rem;
  box-shadow: -20px 0 50px rgba(0, 0, 0, 0.35);
  animation: rise 0.25s ease both;
}

.pass-drawer__head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.1rem;
}

.pass-drawer__title {
  margin: 0.2rem 0 0.25rem;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.pass-drawer__rename {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.pass-drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pass-drawer__item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.pass-drawer__item:last-child {
  border-bottom: 0;
}

body.drawer-open {
  overflow: hidden;
}

.pass-card__eyebrow {
  margin: 0;
  color: var(--ink-muted);
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.pass-card__meta {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.pass-card__rename-row {
  display: flex;
  gap: 0.5rem;
}

.pass-card__item-main strong {
  font-size: 1.05rem;
}

.pass-card__item-main p {
  margin: 0.35rem 0 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
  line-height: 1.55;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.pass-card__url {
  word-break: break-all;
}

.ok-text {
  color: var(--ok);
}

@media (max-width: 800px) {
  .pass-drawer__item {
    flex-direction: column;
  }

  .pass-drawer__panel {
    width: 100%;
  }
}

@media (max-width: 800px) {
  .grid-2,
  .admin-top {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}