@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  color-scheme: light dark;

  --green-50: #ecfdf5;
  --green-100: #d1fae5;
  --green-200: #a7f3d0;
  --green-300: #6ee7b7;
  --green-400: #34d399;
  --green-500: #10b981;
  --green-600: #059669;
  --green-700: #047857;
  --green-800: #065f46;

  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  --red-50: #fef2f2;
  --red-100: #fee2e2;
  --red-200: #fecaca;
  --red-500: #ef4444;
  --red-600: #dc2626;
  --red-700: #b91c1c;

  --amber-50: #fffbeb;
  --amber-100: #fef3c7;
  --amber-500: #f59e0b;
  --amber-600: #d97706;

  --blue-50: #eff6ff;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;

  --white: #ffffff;

  --bg: var(--slate-50);
  --surface: var(--white);
  --surface-hover: var(--slate-50);
  --text: var(--slate-900);
  --text-secondary: var(--slate-600);
  --text-muted: var(--slate-400);
  --line: var(--slate-200);
  --line-light: var(--slate-100);

  --primary: var(--green-600);
  --primary-hover: var(--green-700);
  --primary-light: var(--green-50);
  --primary-border: var(--green-200);

  --danger: var(--red-600);
  --danger-hover: var(--red-700);
  --danger-bg: var(--red-50);
  --danger-border: var(--red-200);

  --success: var(--green-600);
  --success-bg: var(--green-50);
  --success-border: var(--green-200);

  --warning: var(--amber-600);
  --warning-bg: var(--amber-50);
  --warning-border: var(--amber-100);

  --info: var(--blue-600);
  --info-bg: var(--blue-50);

  --font-sans: "Inter", "Segoe UI", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", "Cascadia Code", Consolas, monospace;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-focus: 0 0 0 3px rgba(5, 150, 105, 0.18);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-full: 9999px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 200ms;
  --duration-slow: 300ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--primary-hover);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(16px, 4vw, 40px);
  background: var(--slate-900);
  background-image: linear-gradient(135deg, var(--slate-900), #0d1b2a);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: var(--white);
  font-size: 18px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.3);
}

.topbar-brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.topbar-eyebrow {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green-400);
  line-height: 1;
}

.topbar h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

button,
.primary-link,
.ghost-button,
.danger-button {
  position: relative;
  min-height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 16px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  user-select: none;
  overflow: hidden;
}

button::after,
.primary-link::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  pointer-events: none;
}

button:active,
.primary-link:active,
.ghost-button:active,
.danger-button:active {
  transform: scale(0.97);
}

button,
.primary-link {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

button:hover,
.primary-link:hover {
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.35);
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.ghost-button {
  background: var(--white);
  color: var(--text-secondary);
  border-color: var(--line);
}

.ghost-button:hover {
  background: var(--slate-50);
  border-color: var(--slate-300);
  color: var(--text);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.danger-button {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-border);
}

.danger-button:hover {
  background: var(--danger);
  color: var(--white);
  border-color: var(--danger);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
  transform: translateY(-1px);
}

.icon-button {
  width: 40px;
  padding: 0;
  font-size: 16px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
}

input,
select {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--text);
  font-size: 14px;
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
  appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 14px;
  padding-right: 36px;
  cursor: pointer;
}

input:hover,
select:hover {
  border-color: var(--slate-300);
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--shadow-focus);
}

input::placeholder {
  color: var(--text-muted);
}

textarea {
  font: inherit;
  letter-spacing: 0;
}

.checkline,
.radio-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
}

.checkline input,
.radio-line input {
  width: 18px;
  min-height: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--primary);
  cursor: pointer;
}

.notice {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding: 12px 16px;
  border: 1px solid var(--success-border);
  border-radius: var(--radius-md);
  background: var(--success-bg);
  color: var(--green-800);
  font-weight: 600;
  font-size: 14px;
  animation: slideDown var(--duration-slow) var(--ease-out);
}

.notice-icon {
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1;
}

.alert {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding: 12px 16px;
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-md);
  background: var(--danger-bg);
  color: var(--danger);
  font-weight: 600;
  font-size: 14px;
  animation: slideDown var(--duration-slow) var(--ease-out);
}

.alert-icon {
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1;
}

.page {
  width: min(1120px, calc(100% - 40px));
  margin: 24px auto 48px;
  display: grid;
  gap: 24px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: clamp(20px, 3vw, 32px);
  transition: box-shadow var(--duration-normal) var(--ease-out), border-color var(--duration-normal) var(--ease-out);
}

.panel:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--slate-300);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0;
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-head-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary-light), var(--green-100));
  color: var(--primary);
  font-size: 14px;
  flex-shrink: 0;
}

.counter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  padding: 0 10px;
  background: linear-gradient(135deg, var(--primary-light), var(--green-100));
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.upload-form {
  display: grid;
  gap: 16px;
}

.upload-fields {
  display: grid;
  grid-template-columns: 1fr 160px 200px auto;
  gap: 14px;
  align-items: end;
}

.upload-fields label {
  margin-bottom: 0;
}

.file-picker {
  position: relative;
}

.file-picker input[type="file"] {
  padding: 8px 12px;
  cursor: pointer;
  min-height: 42px;
  display: flex;
  align-items: center;
}

.file-picker input[type="file"]::file-selector-button {
  min-height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--slate-50);
  color: var(--text-secondary);
  padding: 0 12px;
  font-weight: 600;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  margin-right: 10px;
}

.file-picker input[type="file"]::file-selector-button:hover {
  background: var(--slate-100);
  border-color: var(--slate-300);
}

.upload-progress {
  display: grid;
  gap: 12px;
  padding: 16px 20px;
  border: 1.5px solid var(--primary-border);
  border-radius: var(--radius-md);
  background: var(--primary-light);
  animation: slideDown var(--duration-slow) var(--ease-out);
}

.progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.progress-head strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--green-800);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 60%;
}

.progress-head span {
  font-size: 14px;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.progress-track {
  width: 100%;
  height: 8px;
  overflow: hidden;
  border-radius: var(--radius-full);
  background: var(--green-200);
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green-500), var(--green-600));
  transition: width 200ms var(--ease-out);
  position: relative;
}

.progress-track span::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.file-list {
  display: grid;
  gap: 12px;
}

.bulk-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--slate-50);
  transition: all var(--duration-normal) var(--ease-out);
}

.bulk-toolbar.has-selection {
  background: linear-gradient(135deg, var(--primary-light), var(--green-50));
  border-color: var(--primary-border);
}

.bulk-toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--line);
  flex-shrink: 0;
}

.selected-count {
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  min-width: 80px;
}

.selected-count.has-count {
  color: var(--primary);
  font-weight: 700;
}

.copy-status {
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

.file-row {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 16px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 20px;
  background: var(--surface);
  transition: all var(--duration-normal) var(--ease-out);
}

.file-row:hover {
  border-color: var(--slate-300);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

.file-row.is-new {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1), var(--shadow-sm);
  animation: highlightFade 3s var(--ease-out) forwards;
}

@keyframes highlightFade {
  0%, 30% {
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15), var(--shadow-md);
  }
  100% {
    box-shadow: var(--shadow-sm);
  }
}

.select-column {
  padding-top: 2px;
}

.select-column input {
  width: 18px;
  min-height: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

.file-main {
  min-width: 0;
}

.file-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.file-main h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  overflow-wrap: anywhere;
  line-height: 1.4;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 26px;
  border-radius: var(--radius-full);
  padding: 0 10px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.badge-locked {
  background: linear-gradient(135deg, var(--amber-100), #fde68a);
  color: var(--amber-600);
}

.badge-unlocked {
  background: var(--slate-100);
  color: var(--text-muted);
}

.file-meta {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin: 12px 0 14px;
}

.file-meta-item {
  min-width: 0;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: var(--slate-50);
}

.file-meta-item dt {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.file-meta-item dd {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}

.share-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--slate-50);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  cursor: text;
  transition: all var(--duration-fast) var(--ease-out);
}

.share-input:hover {
  background: var(--white);
  border-color: var(--slate-300);
}

.share-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--shadow-focus);
  background: var(--white);
  color: var(--text);
}

.file-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line-light);
}

.file-actions form {
  margin: 0;
}

.edit-panel {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-top: 14px;
  animation: slideDown var(--duration-slow) var(--ease-out);
  overflow: hidden;
}

.edit-form {
  display: grid;
  grid-template-columns: 160px 1fr 200px 160px auto;
  gap: 14px;
  align-items: end;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 10px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
}

legend {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  padding: 0 4px;
}

fieldset .radio-line + .radio-line {
  margin-top: 10px;
}

.edit-checkline {
  flex-direction: row;
  padding-top: 6px;
}

.auth-page,
.share-page {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(5, 150, 105, 0.06), rgba(245, 158, 11, 0.08)),
    linear-gradient(45deg, rgba(59, 130, 246, 0.03), transparent),
    var(--bg);
}

.auth-shell,
.share-shell {
  width: min(440px, 100%);
}

.auth-panel,
.share-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  padding: clamp(28px, 5vw, 40px);
}

.auth-panel-header,
.share-panel-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.auth-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--green-100), var(--green-50));
  color: var(--primary);
  font-size: 26px;
  flex-shrink: 0;
}

.auth-panel h1,
.share-panel h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
}

.auth-panel .eyebrow,
.share-panel .eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stack {
  display: grid;
  gap: 16px;
}

.stack .alert {
  margin: 0;
}

.share-panel-header-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--green-100), var(--green-50));
  color: var(--primary);
  font-size: 28px;
  flex-shrink: 0;
}

.share-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 20px 0;
}

.share-meta-item {
  border: 1px solid var(--line-light);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  background: var(--slate-50);
}

.share-meta-item dt {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.share-meta-item dd {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.share-download-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: var(--white);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
  position: relative;
  overflow: hidden;
}

.share-download-link::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  pointer-events: none;
}

.share-download-link:hover {
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.4);
  transform: translateY(-2px);
  color: var(--white);
}

.share-download-link:active {
  transform: translateY(0);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 20px;
  text-align: center;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 56px;
  opacity: 0.35;
  line-height: 1;
  filter: grayscale(0.3);
}

.empty-state-text {
  font-size: 15px;
  font-weight: 600;
}

.empty-state-hint {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
}

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: grid;
  gap: 10px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  background: var(--slate-900);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  pointer-events: auto;
  animation: toastIn var(--duration-slow) var(--ease-out);
  max-width: 380px;
}

.toast-success {
  background: linear-gradient(135deg, var(--green-700), var(--green-800));
}

.toast-error {
  background: linear-gradient(135deg, var(--red-600), var(--red-700));
}

.toast-icon {
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1;
}

.toast-message {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
}

.toast-dismiss {
  flex-shrink: 0;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  padding: 0;
  font-size: 16px;
  line-height: 1;
  min-height: auto;
  box-shadow: none;
}

.toast-dismiss:hover {
  color: var(--white);
  background: none;
  box-shadow: none;
  transform: none;
}

.toast-leave {
  animation: toastOut var(--duration-normal) var(--ease-in-out) forwards;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(-8px) scale(0.95);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--slate-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--slate-400);
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.badge-p2p-only {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 26px;
  border-radius: var(--radius-full);
  padding: 0 10px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--blue-50), #dbeafe);
  color: var(--blue-600);
}

.p2p-only-form {
  display: grid;
  gap: 16px;
}

.p2p-only-fields {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: end;
}

.p2p-only-panel {
  display: grid;
  gap: 12px;
  padding: 16px 20px;
  border: 1.5px solid var(--primary-border);
  border-radius: var(--radius-md);
  background: var(--primary-light);
  animation: slideDown var(--duration-slow) var(--ease-out);
}

.p2p-only-panel .p2p-sender-status {
  font-size: 14px;
}

.p2p-only-share {
  display: grid;
  gap: 6px;
}

.p2p-only-share label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  flex-direction: row;
}

.p2p-only-share-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.p2p-only-share-row .share-input {
  font-size: 13px;
}

.transfer-mode-area {
  margin: 16px 0;
}

.transfer-mode-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.transfer-mode-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.transfer-mode-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 12px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  text-align: center;
  position: relative;
}

.transfer-mode-option:hover {
  border-color: var(--slate-300);
  background: var(--slate-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.transfer-mode-option.transfer-mode-active {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary-light), var(--green-50));
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.12), var(--shadow-sm);
}

.transfer-mode-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.transfer-mode-icon {
  font-size: 28px;
  line-height: 1;
  color: var(--text);
  transition: color var(--duration-fast) var(--ease-out);
}

.transfer-mode-active .transfer-mode-icon {
  color: var(--primary);
}

.transfer-mode-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.transfer-mode-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.3;
}

.p2p-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background var(--duration-normal) var(--ease-out);
  background: var(--text-muted);
}

.p2p-dot-waiting { background: var(--amber-500); animation: pulse 1.5s infinite; }
.p2p-dot-connecting { background: var(--blue-500); animation: pulse 1.5s infinite; }
.p2p-dot-online { background: var(--green-500); box-shadow: 0 0 6px rgba(16, 185, 129, 0.5); }
.p2p-dot-transfer { background: var(--primary); animation: pulse 1.2s infinite; box-shadow: 0 0 8px rgba(5, 150, 105, 0.4); }
.p2p-dot-offline { background: var(--text-muted); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.p2p-panel {
  border-top: 1px solid var(--line-light);
  padding-top: 14px;
  margin-top: 12px;
  display: grid;
  gap: 10px;
  animation: slideDown var(--duration-slow) var(--ease-out);
}

.p2p-sender-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.p2p-sender-progress {
  display: grid;
  gap: 6px;
}

.p2p-progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 700;
}

.p2p-progress-head span:first-child {
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.p2p-progress-head span:last-child {
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.p2p-btn:disabled {
  opacity: 0.7;
  cursor: default;
}

.p2p-stop-btn {
  font-size: 12px;
  min-height: 32px;
  padding: 0 12px;
  justify-self: start;
}

.p2p-receiver-status {
  margin: 16px 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--slate-50);
  display: grid;
  gap: 10px;
  animation: slideDown var(--duration-slow) var(--ease-out);
}

.p2p-receiver-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
}

.p2p-receiver-progress {
  display: grid;
  gap: 8px;
}

.p2p-fallback-msg {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-md);
  background: var(--warning-bg);
  color: var(--amber-600);
  font-size: 13px;
  font-weight: 600;
  animation: slideDown var(--duration-slow) var(--ease-out);
}

@media (max-width: 900px) {
  .upload-fields {
    grid-template-columns: 1fr 160px 180px;
  }

  .edit-form {
    grid-template-columns: 1fr 1fr;
  }

  .file-meta {
    grid-template-columns: repeat(3, 1fr);
  }

  .page {
    width: min(100% - 32px, 1120px);
  }
}

@media (max-width: 720px) {
  .upload-fields {
    grid-template-columns: 1fr;
  }

  .p2p-only-fields {
    grid-template-columns: 1fr;
  }

  .file-meta {
    grid-template-columns: repeat(2, 1fr);
  }

  .edit-form {
    grid-template-columns: 1fr;
  }

  .file-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }

  .select-column {
    order: -1;
  }

  .topbar {
    padding: 12px 16px;
  }

  .panel {
    padding: 16px;
  }

  .file-title-row {
    flex-direction: column;
  }

  .bulk-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .bulk-toolbar-divider {
    display: none;
  }

  .file-actions {
    justify-content: flex-start;
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }

  .toast {
    max-width: none;
  }
}

@media (max-width: 480px) {
  .page {
    width: calc(100% - 20px);
    margin-top: 16px;
    gap: 16px;
  }

  .file-meta {
    grid-template-columns: 1fr;
  }

  .share-meta-grid {
    grid-template-columns: 1fr;
  }

  .auth-panel,
  .share-panel {
    border-radius: var(--radius-xl);
    padding: 24px 20px;
  }

  .file-actions button,
  .file-actions a,
  .file-actions form {
    width: 100%;
  }

  .file-actions form button {
    width: 100%;
  }

  .transfer-mode-options {
    grid-template-columns: 1fr;
  }
}