@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0d0f14;
  --bg2: #13161f;
  --bg3: #1a1e2a;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-active: rgba(99, 179, 237, 0.5);
  --accent: #63b3ed;
  --accent2: #9f7aea;
  --accent-glow: rgba(99, 179, 237, 0.15);
  --success: #68d391;
  --danger: #fc8181;
  --warning: #f6e05e;
  --text: #e2e8f0;
  --text-dim: #718096;
  --text-muted: #4a5568;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
}

html,
body {
  height: 100%;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* ─── Login Overlay ──────────────────────────────── */
.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 15, 20, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.login-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.login-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  transform: translateY(20px);
  transition: 0.3s ease;
}

.login-overlay.active .login-card {
  transform: translateY(0);
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* ─── Lightbox (Popup) ───────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: 0.2s ease;
}

.lightbox.show {
  opacity: 1;
  pointer-events: all;
}

.lightbox-img {
  max-width: 90%;
  max-height: 85vh;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 30px;
  right: 40px;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  opacity: 0.7;
  transition: 0.2s;
}

.lightbox-close:hover {
  opacity: 1;
  transform: scale(1.1);
}

.lightbox-caption {
  margin-top: 16px;
  font-size: 14px;
  font-family: monospace;
  color: var(--text-dim);
}

/* ─── Layout ─────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 18px;
}

.app-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.app-subtitle {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 1px;
}

.betty-status {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

.main-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 20px;
}

/* ─── Tabs ───────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg3);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  padding: 10px 20px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}

.tab-btn:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.tab-btn.active {
  background: linear-gradient(135deg, rgba(99, 179, 237, 0.15), rgba(159, 122, 234, 0.15));
  color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--border-active);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ─── Drop Zone ──────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--surface);
  position: relative;
}

.drop-zone:hover,
.drop-zone.dragging {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.drop-icon {
  font-size: 36px;
  margin-bottom: 10px;
}

.drop-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

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

/* ─── File Grid ──────────────────────────────────── */
.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

@media (max-width: 480px) {
  .file-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
}

.file-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: var(--transition);
}

.file-card:hover {
  border-color: rgba(99, 179, 237, 0.3);
}

.file-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.card-thumb {
  width: 100%;
  height: 120px;
  object-fit: cover;
  display: block;
  background: var(--bg2);
  cursor: pointer;
}

.card-thumb-placeholder {
  width: 100%;
  height: 120px;
  background: var(--bg2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--text-dim);
  font-size: 11px;
}

.card-thumb-placeholder .file-icon {
  font-size: 32px;
}

/* In the new UX, checkbox is next to the input */
.card-body {
  padding: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-select {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.card-name-input {
  flex: 1;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 11px;
  padding: 5px 8px;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
  min-width: 0;
}

.card-name-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.card-size,
.card-date {
  font-size: 9px;
  color: var(--text-dim);
  position: absolute;
  top: 102px;
  right: 6px;
  background: rgba(0, 0, 0, 0.6);
  padding: 2px 4px;
  border-radius: 4px;
  pointer-events: none;
}

/* ─── Toolbar ────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.toolbar .spacer {
  flex: 1;
}

/* ─── Buttons ────────────────────────────────────── */
.btn {
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 16px rgba(99, 179, 237, 0.2);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 179, 237, 0.35);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-hover);
  color: var(--text);
}

.btn-danger {
  background: rgba(252, 129, 129, 0.1);
  color: var(--danger);
  border: 1px solid rgba(252, 129, 129, 0.2);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(252, 129, 129, 0.2);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* ─── Path Bar ───────────────────────────────────── */
.path-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-bottom: 12px;
  font-size: 12px;
  font-family: monospace;
  overflow-x: auto;
}

.path-bar .path-text {
  flex: 1;
  color: var(--accent);
  word-break: break-all;
}

.path-bar .copy-btn {
  flex-shrink: 0;
  padding: 3px 8px;
  font-size: 11px;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--border-active);
  border-radius: 4px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.path-bar .copy-btn:hover {
  background: var(--accent);
  color: #fff;
}

/* ─── File Browser ───────────────────────────────── */
.browser-panel {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
}

.browser-header {
  padding: 10px 14px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}

.browser-list {
  max-height: 280px;
  overflow-y: auto;
}

.browser-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  font-size: 13px;
}

.browser-item:last-child {
  border-bottom: none;
}

.browser-item:hover {
  background: var(--surface-hover);
}

.browser-item .item-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.browser-item .item-name {
  flex: 1;
}

.browser-item .item-size {
  font-size: 11px;
  color: var(--text-muted);
}

.browser-item.is-dir {
  color: var(--accent);
}

.browser-item.loading-item,
.browser-item.empty-item {
  color: var(--text-muted);
  cursor: default;
  justify-content: center;
}

/* ─── Upload Result ──────────────────────────────── */
.upload-result {
  background: rgba(104, 211, 145, 0.08);
  border: 1px solid rgba(104, 211, 145, 0.2);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-top: 16px;
  display: none;
}

.upload-result.show {
  display: block;
}

.result-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--success);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.result-file {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-family: monospace;
  color: var(--text-dim);
  padding: 5px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.result-file:last-child {
  border-bottom: none;
}

.result-file .rf-icon {
  font-size: 14px;
}

.result-file .rf-path {
  flex: 1;
  color: var(--accent);
  word-break: break-all;
}

.result-file .rf-copy {
  padding: 2px 7px;
  font-size: 10px;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--border-active);
  border-radius: 4px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.result-file .rf-copy:hover {
  background: var(--accent);
  color: #fff;
}

.copy-all-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}

/* ─── Toast ──────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 13px;
  box-shadow: var(--shadow);
  transform: translateY(80px);
  opacity: 0;
  transition: 0.3s ease;
  z-index: 9999;
  max-width: 320px;
}

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

.toast.success {
  border-color: rgba(104, 211, 145, 0.4);
  color: var(--success);
}

.toast.error {
  border-color: rgba(252, 129, 129, 0.4);
  color: var(--danger);
}

/* ─── Spinner ────────────────────────────────────── */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 640px) {
  .app-header {
    padding: 12px 16px;
  }

  .main-container {
    padding: 16px 12px;
  }

  .betty-status span {
    display: none;
  }

  .lightbox-close {
    top: 15px;
    right: 20px;
  }
}