@import url('https://fonts.googleapis.com/css2?family=Russo+One&family=Share+Tech+Mono&display=swap');

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

:root {
  --bg: #F4F4F0;
  --text: #1A1A1A;
  --border: #ABABAB;
  --rule: #D4D4D0;
  --olive: #7A7A6E;
  --brass: #B8A060;
  --brass-bg: rgba(184, 160, 96, 0.06);
  --badge-bg: #E4E4E0;
  --badge-border: #D4D4D0;
  --badge-text: #4A4A4A;
  --input-bg: #FAFAF6;
  --mono: 'Share Tech Mono', monospace;
  --heading: 'Russo One', sans-serif;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */

button, .btn {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  padding: 4px 10px;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  white-space: nowrap;
}

button:hover, .btn:hover {
  border-color: var(--brass);
  color: var(--brass);
  background: var(--brass-bg);
}

button:active, .btn:active {
  background: rgba(184, 160, 96, 0.12);
}

/* ── Inputs ──────────────────────────────────────────────────────────── */

input[type="text"],
input[type="password"] {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  width: 100%;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 2px rgba(184, 160, 96, 0.2);
}

input::placeholder {
  color: var(--border);
}

/* ══════════════════════════════════════════════════════════════════════
   LOGIN PAGE
═══════════════════════════════════════════════════════════════════════ */

#login-root {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}

.login-card {
  width: 100%;
  max-width: 380px;
  padding: 40px 36px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.login-logo {
  font-family: var(--heading);
  font-size: 1.5rem;
  letter-spacing: 0.2em;
  color: #808080;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 10px;
}

.login-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 12px 0;
}

.login-subtitle {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--olive);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 28px;
}

.login-field {
  margin-bottom: 16px;
}

.login-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--olive);
  text-transform: uppercase;
  margin-bottom: 5px;
}

.login-submit {
  width: 100%;
  margin-top: 8px;
  padding: 9px 10px;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  border-color: var(--brass);
  color: var(--brass);
}

.login-submit:hover {
  background: rgba(184, 160, 96, 0.1);
}

.login-error {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: #C04040;
  text-align: center;
  min-height: 1em;
  text-transform: uppercase;
}

/* ══════════════════════════════════════════════════════════════════════
   APP LAYOUT
═══════════════════════════════════════════════════════════════════════ */

#app-root {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ── Topbar ───────────────────────────────────────────────────────────── */

#topbar {
  height: 40px;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  z-index: 10;
}

#topbar-logo {
  font-family: var(--heading);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  color: var(--text);
}

#topbar-logo span {
  color: var(--olive);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  margin-left: 8px;
  vertical-align: middle;
}

#topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

#topbar-user {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--olive);
  padding: 3px 8px;
  border: 1px solid var(--rule);
}

/* ── Main body ────────────────────────────────────────────────────────── */

#main-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Sidebar ──────────────────────────────────────────────────────────── */

#sidebar {
  width: 180px;
  min-width: 180px;
  border-right: 1px solid var(--rule);
  overflow-y: auto;
  background: var(--bg);
  padding: 12px 0;
}

.sidebar-header {
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--olive);
  padding: 0 14px 8px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 4px;
}

.sidebar-item {
  display: block;
  padding: 7px 14px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: uppercase;
}

.sidebar-item:hover {
  background: var(--brass-bg);
  color: var(--brass);
  border-left-color: rgba(184, 160, 96, 0.4);
}

.sidebar-item.active {
  background: rgba(184, 160, 96, 0.08);
  color: var(--brass);
  border-left-color: var(--brass);
}

.sidebar-root {
  color: var(--olive);
  font-size: 0.65rem;
}

/* ── File area ────────────────────────────────────────────────────────── */

#file-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#file-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  height: 38px;
  min-height: 38px;
  border-bottom: 1px solid var(--rule);
  gap: 12px;
}

#breadcrumb {
  display: flex;
  align-items: center;
  gap: 0;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--olive);
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
}

.breadcrumb-sep {
  margin: 0 5px;
  color: var(--rule);
}

.breadcrumb-seg {
  cursor: pointer;
  color: var(--brass);
  transition: color 0.1s;
}

.breadcrumb-seg:hover {
  color: var(--text);
  text-decoration: underline;
}

.breadcrumb-seg.current {
  color: var(--olive);
  cursor: default;
  text-decoration: none;
}

#toolbar-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* ── Drop zone ────────────────────────────────────────────────────────── */

#file-list-wrapper {
  flex: 1;
  overflow: auto;
  position: relative;
}

#file-list-wrapper.drag-over {
  outline: 2px solid var(--brass);
  outline-offset: -2px;
  background: rgba(184, 160, 96, 0.04);
}

/* ── File table ───────────────────────────────────────────────────────── */

#file-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

#file-table thead tr {
  border-bottom: 1px solid var(--rule);
}

#file-table th {
  text-align: left;
  padding: 7px 10px;
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--olive);
  font-weight: normal;
  white-space: nowrap;
}

#file-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--rule);
  vertical-align: middle;
  white-space: nowrap;
}

#file-table tbody tr:hover {
  background: rgba(0,0,0,0.02);
}

.col-type { width: 60px; }
.col-name { width: auto; min-width: 160px; }
.col-size { width: 80px; color: var(--olive); }
.col-modified { width: 130px; color: var(--olive); }
.col-actions { width: 110px; text-align: right; }

/* ── File type badge ─────────────────────────────────────────────────── */

.type-badge {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  padding: 1px 6px;
  color: var(--badge-text);
  text-transform: uppercase;
  display: inline-block;
}

.type-badge.dir {
  background: rgba(184, 160, 96, 0.12);
  border-color: rgba(184, 160, 96, 0.4);
  color: var(--brass);
}

/* ── File name cell ──────────────────────────────────────────────────── */

.file-name-link {
  cursor: pointer;
  color: var(--text);
  transition: color 0.1s;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.file-name-link:hover {
  color: var(--brass);
}

.file-name-link.dir-link {
  font-weight: bold;
}

/* ── Row actions ─────────────────────────────────────────────────────── */

.row-actions {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
}

.action-btn {
  font-size: 0.65rem;
  padding: 2px 6px;
  letter-spacing: 0.05em;
}

.action-btn.delete-btn:hover {
  border-color: #C04040;
  color: #C04040;
  background: rgba(192, 64, 64, 0.06);
}

/* ── Inline rename ───────────────────────────────────────────────────── */

.rename-input {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  background: var(--input-bg);
  border: 1px solid var(--brass);
  color: var(--text);
  padding: 2px 6px;
  width: 240px;
  text-transform: uppercase;
  outline: none;
}

/* ── Empty state ─────────────────────────────────────────────────────── */

#empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  font-size: 1.2rem;
  letter-spacing: 0.3em;
  color: var(--olive);
  text-transform: uppercase;
}

/* ── Bottom bar ───────────────────────────────────────────────────────── */

#bottombar {
  height: 40px;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-top: 1px solid var(--rule);
  background: var(--bg);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--olive);
}

/* ══════════════════════════════════════════════════════════════════════
   UPLOAD PROGRESS PANEL
═══════════════════════════════════════════════════════════════════════ */

#upload-panel {
  position: fixed;
  bottom: 40px;
  left: 0;
  right: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 10px 16px;
  z-index: 200;
  display: none;
}

#upload-panel.visible {
  display: block;
}

.upload-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--olive);
}

.upload-item {
  margin-bottom: 8px;
}

.upload-item-name {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--text);
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 600px;
}

.progress-track {
  height: 4px;
  background: var(--badge-bg);
  width: 100%;
}

.progress-fill {
  height: 4px;
  background: var(--brass);
  width: 0%;
  transition: width 0.2s;
}

/* ══════════════════════════════════════════════════════════════════════
   PREVIEW MODAL
═══════════════════════════════════════════════════════════════════════ */

#preview-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 500;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#preview-modal.open {
  display: flex;
}

#preview-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: rgba(0, 0, 0, 0.7);
  border-bottom: 1px solid rgba(184, 160, 96, 0.3);
  z-index: 10;
}

#preview-title {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--brass);
  text-transform: uppercase;
}

#preview-close {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  background: transparent;
  border: 1px solid rgba(184, 160, 96, 0.5);
  color: var(--brass);
  cursor: pointer;
  padding: 4px 12px;
  transition: background 0.15s;
}

#preview-close:hover {
  background: rgba(184, 160, 96, 0.15);
}

#preview-content {
  margin-top: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: calc(100vh - 44px);
  overflow: auto;
  padding: 20px;
}

#preview-content img {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
  display: block;
}

#preview-content iframe {
  width: 95vw;
  height: 90vh;
  border: none;
}

#preview-content video {
  max-width: 95vw;
  max-height: 90vh;
}

#preview-content audio {
  width: 480px;
  max-width: 90vw;
}

#preview-content pre {
  background: #1A1A1A;
  color: #E8E8E8;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 24px;
  overflow: auto;
  max-width: 90vw;
  max-height: 86vh;
  white-space: pre-wrap;
  word-break: break-all;
  text-transform: none;
  border: 1px solid #333;
}

.preview-download-wrap {
  text-align: center;
}

.preview-download-filename {
  font-size: 1rem;
  letter-spacing: 0.14em;
  color: var(--brass);
  margin-bottom: 20px;
}

.preview-download-btn {
  font-size: 0.8rem;
  padding: 10px 28px;
  border-color: var(--brass);
  color: var(--brass);
}

.preview-download-btn:hover {
  background: rgba(184, 160, 96, 0.15);
}

/* ── Confirm dialog ───────────────────────────────────────────────────── */

#confirm-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 600;
  align-items: center;
  justify-content: center;
}

#confirm-overlay.open {
  display: flex;
}

#confirm-box {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 28px 32px;
  max-width: 340px;
  width: 100%;
  text-align: center;
}

#confirm-msg {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.6;
}

.confirm-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.confirm-yes {
  border-color: #C04040;
  color: #C04040;
}

.confirm-yes:hover {
  background: rgba(192, 64, 64, 0.08);
}

/* ── Scrollbar ────────────────────────────────────────────────────────── */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--rule);
}

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