:root {
  --bg: #090b10;
  --bg-elevated: #111520;
  --bg-card: #161b28;
  --bg-card-hover: #1c2233;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f0f2f7;
  --text-dim: #8b95a8;
  --accent: #8b7cf6;
  --accent-bright: #a594ff;
  --accent-soft: rgba(139, 124, 246, 0.12);
  --accent-glow: rgba(139, 124, 246, 0.35);
  --success: #5dd39e;
  --error: #ff7b7b;
  --radius: 14px;
  --radius-sm: 10px;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "DM Sans", -apple-system, "Segoe UI", sans-serif;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  --transition: 0.18s ease;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Backgrounds ---------- */
.app-bg,
.login-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 60% at 10% -10%, rgba(139, 124, 246, 0.18), transparent 50%),
    radial-gradient(ellipse 60% 50% at 90% 110%, rgba(93, 211, 158, 0.08), transparent 50%),
    var(--bg);
}

.app-bg::after,
.login-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

/* ---------- Layout ---------- */
.app {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 64px;
  animation: fadeIn 0.4s ease;
}

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

/* ---------- Topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  margin-bottom: 28px;
  background: rgba(22, 27, 40, 0.7);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand__mark {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-soft), rgba(139, 124, 246, 0.06));
  border: 1px solid rgba(139, 124, 246, 0.25);
  color: var(--accent-bright);
}

.brand__mark--lg {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
}

.brand__text h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand__text p {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-dim);
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.bucket-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
}

.bucket-pill__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(93, 211, 158, 0.6);
  animation: pulse 2s ease infinite;
}

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

.user-menu {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 4px 4px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.user-menu__name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
}

/* ---------- Breadcrumbs ---------- */
.crumbs {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.crumbs button {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.crumbs button:hover,
.crumbs button:focus-visible {
  color: var(--accent-bright);
  background: var(--accent-soft);
  outline: none;
}

.crumbs .crumbs__sep {
  opacity: 0.35;
  user-select: none;
}

.crumbs .crumbs__current {
  color: var(--text);
  font-weight: 500;
  padding: 4px 8px;
}

/* ---------- Panels ---------- */
.panel {
  margin-bottom: 20px;
}

.panel--upload {
  background: rgba(22, 27, 40, 0.5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
}

/* ---------- Dropzone ---------- */
.dropzone {
  border: 1.5px dashed var(--border-strong);
  border-radius: calc(var(--radius) - 4px);
  padding: 40px 24px;
  text-align: center;
  background: transparent;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.dropzone.is-dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 4px rgba(139, 124, 246, 0.08);
}

.dropzone__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.dropzone__icon-wrap {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-bright);
  margin-bottom: 4px;
}

.dropzone__title {
  margin: 0;
  font-weight: 600;
  font-size: 16px;
}

.dropzone__sub {
  margin: 0 0 8px;
  color: var(--text-dim);
  font-size: 13px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 10px 20px;
  cursor: pointer;
  transition: transform 0.1s ease, background var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), #6e5ce0);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn--primary:hover:not(:disabled) {
  box-shadow: 0 6px 24px var(--accent-glow);
}

.btn--ghost {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.btn--ghost:hover:not(:disabled) {
  border-color: rgba(139, 124, 246, 0.4);
  color: var(--accent-bright);
  background: var(--accent-soft);
}

.btn--danger {
  background: rgba(255, 123, 123, 0.12);
  border-color: rgba(255, 123, 123, 0.35);
  color: var(--error);
}

.btn--danger:hover:not(:disabled) {
  background: rgba(255, 123, 123, 0.22);
  border-color: rgba(255, 123, 123, 0.5);
}

.btn--sm {
  padding: 7px 14px;
  font-size: 12px;
}

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

/* ---------- Upload list ---------- */
.upload-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 12px 12px;
}

.upload-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 13px;
  animation: slideIn 0.25s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.upload-item__name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 12px;
}

.upload-item__status {
  color: var(--text-dim);
  font-size: 12px;
}

.upload-item.is-done .upload-item__status {
  color: var(--success);
}

.upload-item.is-error .upload-item__status {
  color: var(--error);
}

/* ---------- Toolbar ---------- */
.toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

/* ---------- Grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}

.empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
  padding: 56px 20px;
  background: rgba(22, 27, 40, 0.4);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.card:hover,
.card:focus-visible {
  border-color: rgba(139, 124, 246, 0.35);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  outline: none;
}

.card__thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card__thumb img,
.card__thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card:hover .card__thumb img,
.card:hover .card__thumb video {
  transform: scale(1.04);
}

.card__folder-icon {
  color: var(--accent-bright);
  opacity: 0.85;
}

.card__file-icon {
  color: var(--text-dim);
}

.card__label {
  font-size: 11px;
  font-family: var(--mono);
  padding: 10px 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-top: 1px solid var(--border);
}

.card__actions {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 2;
}

.card:hover .card__actions,
.card:focus-within .card__actions {
  opacity: 1;
  transform: translateY(0);
}

.card__action {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: rgba(9, 11, 16, 0.85);
  backdrop-filter: blur(8px);
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.card__action:hover {
  background: var(--accent-soft);
  border-color: rgba(139, 124, 246, 0.4);
  color: var(--accent-bright);
}

.card__action--danger:hover {
  background: rgba(255, 123, 123, 0.12);
  border-color: rgba(255, 123, 123, 0.35);
  color: var(--error);
}

/* ---------- Footer ---------- */
.footer {
  margin-top: 48px;
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  opacity: 0.7;
}

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 10, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
  animation: fadeIn 0.2s ease;
}

.modal[hidden] {
  display: none;
}

.modal__card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 380px;
  position: relative;
  box-shadow: var(--shadow);
}

.modal__card--wide {
  max-width: 540px;
}

.modal__card h2 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.modal__desc {
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--text-dim);
}

.modal__warning {
  margin: 0 0 18px;
  font-size: 12px;
  color: var(--error);
  background: rgba(255, 123, 123, 0.08);
  border: 1px solid rgba(255, 123, 123, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.modal__error {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--error);
}

.rename-row {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.rename-row:focus-within {
  border-color: rgba(139, 124, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(139, 124, 246, 0.12);
}

.rename-row input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
}

.rename-row input:focus {
  outline: none;
  box-shadow: none;
}

.rename-row__ext {
  padding: 12px 14px 12px 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  user-select: none;
  white-space: nowrap;
}

.modal__card input[type="text"] {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.modal__card input[type="text"]:focus {
  outline: none;
  border-color: rgba(139, 124, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(139, 124, 246, 0.12);
}

.modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

.modal__close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.modal__close:hover {
  color: var(--text);
  background: var(--accent-soft);
}

/* ---------- Preview ---------- */
.preview__media {
  width: 100%;
  max-height: 340px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  border: 1px solid var(--border);
}

.preview__media img,
.preview__media video {
  width: 100%;
  max-height: 340px;
  object-fit: contain;
}

.preview__name {
  font-family: var(--mono);
  font-size: 12px;
  margin: 0 0 16px;
  word-break: break-all;
  color: var(--text-dim);
}

.preview__label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  display: block;
  margin-bottom: 8px;
}

.preview__urlrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.preview__urlrow input {
  flex: 1;
  min-width: 200px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
}

.preview__hint {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}

.preview__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

/* ---------- Move browser ---------- */
.move-browser {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 16px;
}

.move-browser__crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  font-family: var(--mono);
  font-size: 11px;
  margin-bottom: 12px;
}

.move-browser__crumbs button {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 6px;
  border-radius: 5px;
}

.move-browser__crumbs button:hover {
  color: var(--accent-bright);
  background: var(--accent-soft);
}

.move-browser__dest {
  margin-bottom: 12px;
}

.move-browser__dest-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.move-browser__dest-path {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-bright);
  word-break: break-all;
}

.move-browser__list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.move-browser__item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition), background var(--transition);
}

.move-browser__item:hover:not(:disabled) {
  border-color: rgba(139, 124, 246, 0.35);
  background: var(--bg-card-hover);
}

.move-browser__item:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.move-browser__empty {
  margin: 0;
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
  padding: 16px 8px;
}

/* ---------- Login page ---------- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: rgba(22, 27, 40, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-strong);
  border-radius: calc(var(--radius) + 4px);
  padding: 40px 36px;
  box-shadow: var(--shadow);
  animation: fadeIn 0.5s ease;
}

.login-card__brand {
  text-align: center;
  margin-bottom: 32px;
}

.login-card__brand h1 {
  margin: 0 0 6px;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.login-card__brand p {
  margin: 0;
  font-size: 14px;
  color: var(--text-dim);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 7px;
  letter-spacing: 0.02em;
}

.field input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.field input:focus {
  outline: none;
  border-color: rgba(139, 124, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(139, 124, 246, 0.12);
}

.login-form__error {
  margin: 0;
  font-size: 13px;
  color: var(--error);
  background: rgba(255, 123, 123, 0.08);
  border: 1px solid rgba(255, 123, 123, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.login-card__footer {
  margin: 24px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  opacity: 0.8;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .app {
    padding: 16px 16px 48px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
  }

  .topbar__actions {
    justify-content: space-between;
  }

  .grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 10px;
  }

  .login-card {
    padding: 32px 24px;
  }
}