:root {
  --bg: #eef3f8;
  --panel: #ffffff;
  --line: #d7e0ea;
  --text: #17324d;
  --muted: #61758a;
  --accent: #1d5fa7;
  --accent-strong: #15487e;
  --success-bg: #ebf8f1;
  --success-text: #1a7f4b;
  --shadow: 0 16px 40px rgba(23, 50, 77, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f6f9fc 0%, var(--bg) 100%);
}

a {
  color: inherit;
}

.page {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 48px 16px 56px;
}

.compact-page {
  max-width: 860px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(135deg, #ffffff 0%, #f3f7fb 100%);
  box-shadow: var(--shadow);
}

body.page-drop-active {
  background: linear-gradient(180deg, #eef6ff 0%, #dfeefc 100%);
}

body.page-drop-active .dropzone {
  border-color: var(--accent);
  background: linear-gradient(180deg, #f7fbff 0%, #eaf2fb 100%);
  transform: translateY(-2px);
}

.compact-hero {
  display: block;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: 42px;
  line-height: 1.1;
}

.lead {
  max-width: 620px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.panel {
  margin-top: 18px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hidden {
  display: none !important;
}

.subtle-panel {
  padding-top: 18px;
  padding-bottom: 18px;
}

.quick-links {
  display: flex;
  gap: 16px;
}

.route-card {
  display: block;
  width: 50%;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fbfdff;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.route-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(23, 50, 77, 0.08);
}

.route-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.15rem;
}

.route-card span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
}

.route-tag {
  color: var(--accent) !important;
  font-size: 0.85rem;
  font-weight: 700;
}

.dropzone {
  position: relative;
  min-height: 240px;
  border: 2px dashed #9cb8d5;
  border-radius: 22px;
  background: linear-gradient(180deg, #fbfdff 0%, #f2f7fb 100%);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.dropzone.dragover {
  transform: translateY(-2px);
  border-color: var(--accent);
  background: linear-gradient(180deg, #f7fbff 0%, #eaf2fb 100%);
}

.dropzone-inner {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  padding: 0 20px;
  text-align: center;
  transform: translate(-50%, -50%);
}

.dropzone-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
}

.dropzone-subtitle {
  margin: 8px 0 0;
  color: var(--muted);
}

.selected-files {
  margin-top: 14px;
}

.selected-files:empty {
  display: none;
}

.selected-file,
.file-item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fbfdff;
}

.file-meta {
  min-width: 0;
  flex: 1 1 auto;
}

.file-name {
  font-weight: 700;
  word-break: break-all;
}

.file-sub {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92rem;
}

.file-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex: 0 0 auto;
}

.vault-title {
  margin-top: 16px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f7fbff;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
}

.admin-panel h2 {
  margin: 0 0 18px;
  font-size: 1.1rem;
}

.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.admin-file-item {
  align-items: center;
}

.vault-card {
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fbfdff;
}

.vault-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
  align-items: center;
}

.vault-name {
  margin: 0 0 6px;
  font-size: 1.15rem;
}

.vault-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex: 0 0 auto;
}

.submit-bar {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  align-items: stretch;
}

.submit-bar input {
  flex: 1 1 auto;
  min-width: 0;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--text);
  background: #ffffff;
}

input:focus {
  outline: 2px solid rgba(29, 95, 167, 0.18);
  border-color: var(--accent);
}

.primary-button,
.ghost-button,
.download-link {
  display: inline-block;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 0.96rem;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

.primary-button {
  min-width: 132px;
  border: 1px solid transparent;
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.ghost-button,
.download-link {
  border: 1px solid var(--line);
  color: var(--text);
  background: #ffffff;
}

.primary-button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

.primary-button:hover,
.ghost-button:hover,
.download-link:hover {
  transform: translateY(-1px);
}

.inline-status {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.inline-status.success {
  color: var(--success-text);
}

.mini-nav {
  display: flex;
  gap: 12px;
}

.file-list {
  min-height: 40px;
  margin-top: 18px;
}

.file-list.empty {
  color: var(--muted);
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  max-width: 320px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(23, 50, 77, 0.94);
  color: #ffffff;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 720px) {
  .page {
    padding-top: 24px;
  }

  .hero,
  .quick-links,
  .submit-bar,
  .mini-nav,
  .admin-toolbar,
  .vault-header,
  .selected-file,
  .file-item {
    display: block;
  }

  .hero {
    padding: 24px;
  }

  .hero-card,
  .route-card {
    width: auto;
    margin-top: 16px;
  }

  h1 {
    font-size: 32px;
  }

  .panel {
    padding: 18px;
    border-radius: 20px;
  }

  .submit-bar input,
  .submit-bar .primary-button,
  .mini-nav .ghost-button,
  .download-link {
    width: 100%;
    margin-top: 10px;
    text-align: center;
  }

  .file-actions {
    display: block;
  }

  .vault-actions {
    display: block;
  }

  .file-actions .download-link,
  .file-actions .ghost-button,
  .vault-actions .ghost-button {
    width: 100%;
    margin-top: 10px;
    text-align: center;
  }
}