/* ============================================================
   White Peaks Solutions — Virtual Data Room design system
   Brand: cyan #00E0F5 → blue #2B8CF0 → violet #9B4DEB
   ============================================================ */

:root {
  --wps-cyan: #00E0F5;
  --wps-blue: #2B8CF0;
  --wps-violet: #9B4DEB;
  --wps-ink: #14181f;
  --wps-charcoal: #303030;

  --wps-bg: #f6f8fb;
  --wps-surface: #ffffff;
  --wps-border: #e6ebf3;
  --wps-border-strong: #d5dde9;
  --wps-text: #1c2230;
  --wps-muted: #67728a;
  --wps-faint: #98a2b8;

  --wps-gradient: linear-gradient(120deg, var(--wps-cyan), var(--wps-blue) 45%, var(--wps-violet));
  --wps-gradient-soft: linear-gradient(120deg, rgba(0,224,245,.10), rgba(43,140,240,.10) 45%, rgba(155,77,235,.10));

  --wps-radius: 14px;
  --wps-radius-sm: 9px;
  --wps-shadow-sm: 0 1px 2px rgba(20, 24, 31, 0.05);
  --wps-shadow: 0 10px 30px -12px rgba(43, 140, 240, 0.25);
  --wps-shadow-lg: 0 24px 60px -20px rgba(20, 24, 31, 0.25);

  --wps-font: "Inter", "SF Pro Text", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--wps-font);
  font-size: 15px;
  line-height: 1.55;
  color: var(--wps-text);
  background: var(--wps-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--wps-blue); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--wps-violet); }

h1, h2, h3, h4 { color: var(--wps-ink); letter-spacing: -0.015em; }
h3 { margin-top: 0; font-size: 1.05rem; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85em;
}

/* ---------- Header ---------- */

.wps-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1.25rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--wps-border);
}

.wps-header::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--wps-gradient);
  opacity: .9;
}

.wps-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 650;
  font-size: 0.95rem;
  color: var(--wps-ink);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.wps-brand img { height: 34px; width: auto; display: block; }

.wps-brand-tag {
  font-weight: 500;
  color: var(--wps-muted);
  border-left: 1px solid var(--wps-border-strong);
  padding-left: 0.7rem;
}

.wps-nav { display: flex; align-items: center; gap: 0.35rem; }

.wps-nav a {
  color: var(--wps-muted);
  font-size: 0.9rem;
  font-weight: 550;
  padding: 0.45rem 0.75rem;
  border-radius: var(--wps-radius-sm);
}
.wps-nav a:hover { color: var(--wps-ink); background: var(--wps-bg); }

.wps-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  width: 100%;
}

/* ---------- Cards ---------- */

.wps-card {
  background: var(--wps-surface);
  border: 1px solid var(--wps-border);
  border-radius: var(--wps-radius);
  padding: 1.4rem 1.5rem;
  box-shadow: var(--wps-shadow-sm);
}

.wps-card + .wps-card { margin-top: 1.1rem; }

/* ---------- Typography helpers ---------- */

.wps-title {
  margin: 0 0 0.35rem;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--wps-ink);
}

.wps-subtitle {
  color: var(--wps-muted);
  margin: 0 0 1.4rem;
  font-size: 0.93rem;
}

/* ---------- Buttons ---------- */

.wps-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: var(--wps-radius-sm);
  padding: 0.6rem 1.15rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(120deg, var(--wps-blue), var(--wps-violet));
  box-shadow: 0 6px 16px -6px rgba(43, 140, 240, 0.55);
  transition: transform .12s ease, box-shadow .15s ease, filter .15s ease;
}
.wps-btn:hover { filter: brightness(1.06); transform: translateY(-1px); box-shadow: 0 10px 22px -8px rgba(43, 140, 240, 0.6); }
.wps-btn:active { transform: translateY(0); }

.wps-btn-secondary {
  background: var(--wps-surface);
  color: var(--wps-text);
  border: 1px solid var(--wps-border-strong);
  box-shadow: var(--wps-shadow-sm);
}
.wps-btn-secondary:hover { filter: none; background: var(--wps-bg); }

.wps-btn-danger {
  background: #e05252;
  box-shadow: 0 6px 16px -6px rgba(224, 82, 82, 0.5);
}

.wps-btn-sm { padding: 0.3rem 0.7rem; font-size: 0.78rem; border-radius: 7px; }

/* ---------- Forms ---------- */

.wps-form-grid { display: grid; gap: 1.05rem; }

.wps-form-grid label {
  display: grid;
  gap: 0.4rem;
  font-weight: 590;
  font-size: 0.86rem;
  color: var(--wps-ink);
}

.wps-form-grid input,
.wps-form-grid select,
.wps-form-grid textarea {
  border: 1px solid var(--wps-border-strong);
  border-radius: var(--wps-radius-sm);
  padding: 0.65rem 0.85rem;
  font: inherit;
  color: var(--wps-text);
  background: var(--wps-surface);
  transition: border-color .15s ease, box-shadow .15s ease;
  width: 100%;
}

.wps-form-grid input:focus,
.wps-form-grid select:focus,
.wps-form-grid textarea:focus {
  outline: none;
  border-color: var(--wps-blue);
  box-shadow: 0 0 0 3px rgba(43, 140, 240, 0.18);
}

.wps-form-grid input::placeholder { color: var(--wps-faint); }

/* ---------- Tables ---------- */

.wps-table-wrap, .wps-card { overflow-x: auto; }

.wps-table { width: 100%; border-collapse: collapse; min-width: 560px; }

.wps-table th, .wps-table td {
  padding: 0.7rem 0.75rem;
  border-bottom: 1px solid var(--wps-border);
  text-align: left;
  vertical-align: middle;
}

.wps-table th {
  color: var(--wps-muted);
  font-size: 0.72rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.wps-table tbody tr:last-child td { border-bottom: none; }
.wps-table tbody tr { transition: background .12s ease; }
.wps-table tbody tr:hover { background: #fafbfe; }

/* ---------- Alerts / badges ---------- */

.wps-alert {
  padding: 0.75rem 1rem;
  border-radius: var(--wps-radius-sm);
  margin-bottom: 1.1rem;
  font-size: 0.9rem;
}
.wps-alert-error   { background: #fdf0f0; color: #932838; border: 1px solid #f3cdd3; }
.wps-alert-success { background: #edfaf3; color: #14724a; border: 1px solid #bfe9d4; }
.wps-alert-info    { background: #eef5ff; color: #1c5aa8; border: 1px solid #cadff8; }

.wps-badge {
  display: inline-block;
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  background: var(--wps-gradient-soft);
  color: #2861b8;
  border: 1px solid rgba(43, 140, 240, 0.22);
  white-space: nowrap;
}

/* ---------- Admin shell ---------- */

.wps-shell { display: flex; min-height: calc(100vh - 60px); }

.wps-sidebar {
  width: 232px;
  flex-shrink: 0;
  background: var(--wps-surface);
  border-right: 1px solid var(--wps-border);
  padding: 1.1rem 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.wps-sidebar-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--wps-faint);
  padding: 0.9rem 0.8rem 0.4rem;
}
.wps-sidebar-label:first-child { padding-top: 0.1rem; }

.wps-sidebar a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--wps-muted);
  font-size: 0.9rem;
  font-weight: 550;
  padding: 0.52rem 0.8rem;
  border-radius: var(--wps-radius-sm);
  transition: background .13s ease, color .13s ease;
}

.wps-sidebar a svg { width: 17px; height: 17px; flex-shrink: 0; opacity: .75; }

.wps-sidebar a:hover { background: var(--wps-bg); color: var(--wps-ink); }

.wps-sidebar a.active {
  background: var(--wps-gradient-soft);
  color: var(--wps-blue);
  font-weight: 650;
}
.wps-sidebar a.active svg { opacity: 1; }

.wps-content { flex: 1; min-width: 0; }
.wps-content .wps-main { padding-top: 1.75rem; }

/* Mobile nav toggle (checkbox hack, no JS needed) */
.wps-nav-toggle { display: none; }

.wps-nav-toggle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--wps-radius-sm);
  border: 1px solid var(--wps-border-strong);
  background: var(--wps-surface);
  cursor: pointer;
  flex-shrink: 0;
}
.wps-nav-toggle-btn svg { width: 18px; height: 18px; }

/* ---------- Auth (login / 2FA) ---------- */

.wps-auth-body {
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(52rem 30rem at -8% -12%, rgba(0, 224, 245, 0.13), transparent 60%),
    radial-gradient(46rem 30rem at 108% 0%, rgba(155, 77, 235, 0.12), transparent 60%),
    radial-gradient(40rem 26rem at 50% 118%, rgba(43, 140, 240, 0.10), transparent 60%),
    var(--wps-bg);
}

.wps-auth-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.25rem;
}

.wps-auth-card {
  width: 100%;
  max-width: 430px;
  background: var(--wps-surface);
  border: 1px solid var(--wps-border);
  border-radius: 20px;
  padding: 2.4rem 2.2rem 2.2rem;
  box-shadow: var(--wps-shadow-lg);
  position: relative;
  overflow: hidden;
}

.wps-auth-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--wps-gradient);
}

.wps-auth-card.wide { max-width: 560px; }

.wps-auth-logo { display: block; margin: 0 auto 1.6rem; height: 52px; width: auto; }

.wps-auth-title {
  margin: 0 0 0.3rem;
  text-align: center;
  font-size: 1.32rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--wps-ink);
}

.wps-auth-sub {
  margin: 0 0 1.7rem;
  text-align: center;
  color: var(--wps-muted);
  font-size: 0.9rem;
}

.wps-auth-footer {
  text-align: center;
  padding: 1.2rem;
  color: var(--wps-faint);
  font-size: 0.8rem;
}

.wps-field-hint { font-weight: 400; color: var(--wps-faint); font-size: 0.78rem; }

/* ---------- Dashboard stats ---------- */

.wps-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
}

.wps-stat {
  background: var(--wps-surface);
  border: 1px solid var(--wps-border);
  border-radius: var(--wps-radius);
  padding: 1.15rem 1.3rem;
  box-shadow: var(--wps-shadow-sm);
  position: relative;
  overflow: hidden;
}

.wps-stat::after {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--wps-gradient);
  opacity: .85;
}

.wps-stat-value {
  font-size: 1.75rem;
  font-weight: 750;
  letter-spacing: -0.03em;
  color: var(--wps-ink);
  line-height: 1.2;
}

.wps-stat-label {
  color: var(--wps-muted);
  font-size: 0.82rem;
  font-weight: 550;
  margin-top: 0.15rem;
}

/* ---------- Page header row ---------- */

.wps-page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}
.wps-page-head .wps-title { margin-bottom: 0.15rem; }
.wps-page-head .wps-subtitle { margin-bottom: 0; }

/* ---------- Tree / explorer ---------- */

.wps-tree ul { list-style: none; padding-left: 0; margin: 0; }
.wps-tree ul ul { padding-left: 1.25rem; }

.wps-tree li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.45rem 0.35rem;
  border-radius: var(--wps-radius-sm);
}
.wps-tree li:hover { background: var(--wps-bg); }

/* ---------- Document explorer ---------- */

.doc-explorer { display: flex; flex-direction: column; gap: 1rem; min-height: 520px; }

.doc-explorer-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.doc-explorer-toolbar-left { display: flex; flex-direction: column; gap: 0.35rem; }
.doc-explorer-toolbar-left .wps-title { margin: 0; }

.doc-explorer-toolbar-actions { display: flex; gap: 0.45rem; flex-wrap: wrap; }

.doc-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
  font-size: 0.88rem;
  color: var(--wps-muted);
}

.doc-breadcrumb a { color: var(--wps-blue); font-weight: 550; }
.doc-bc-sep { color: var(--wps-faint); margin: 0 0.15rem; }

.doc-explorer-panes {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  border: 1px solid var(--wps-border);
  border-radius: var(--wps-radius);
  background: var(--wps-surface);
  min-height: 480px;
  overflow: hidden;
}

.doc-tree-pane {
  border-right: 1px solid var(--wps-border);
  background: #fafbfd;
  overflow-y: auto;
  padding: 0.75rem 0.5rem;
}

.doc-tree-header {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--wps-faint);
  padding: 0.25rem 0.5rem 0.6rem;
}

.doc-tree, .doc-tree-children { list-style: none; margin: 0; padding: 0; }
.doc-tree-children { padding-left: 1rem; display: none; }
.doc-tree li.expanded > .doc-tree-children { display: block; }

.doc-tree-node {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.45rem;
  border-radius: var(--wps-radius-sm);
  cursor: pointer;
  font-size: 0.88rem;
  user-select: none;
}

.doc-tree-node:hover { background: var(--wps-bg); }
.doc-tree-node.active { background: var(--wps-gradient-soft); color: var(--wps-blue); font-weight: 600; }
.doc-tree-node.drag-over { outline: 2px dashed var(--wps-blue); outline-offset: -2px; }

.doc-tree-toggle {
  border: none; background: none; padding: 0; width: 1rem;
  font-size: 0.7rem; color: var(--wps-muted); cursor: pointer; flex-shrink: 0;
}
.doc-tree-toggle.invisible { visibility: hidden; }

.doc-tree-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-tree-count { font-size: 0.72rem; color: var(--wps-faint); }

.doc-content-pane {
  position: relative;
  overflow-y: auto;
  padding: 1rem 1.1rem;
  min-height: 480px;
}

.doc-drop-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(43, 140, 240, 0.08);
  border: 2px dashed var(--wps-blue);
  border-radius: var(--wps-radius-sm);
  z-index: 10;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.doc-drop-overlay.visible { display: flex; }

.doc-drop-message {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--wps-blue);
  background: var(--wps-surface);
  padding: 1rem 1.5rem;
  border-radius: var(--wps-radius);
  box-shadow: var(--wps-shadow);
}

.doc-section-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--wps-faint);
  margin: 0.75rem 0 0.4rem;
}
.doc-section-label:first-child { margin-top: 0; }

.doc-item-list { list-style: none; margin: 0; padding: 0; }

.doc-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.5rem;
  border-radius: var(--wps-radius-sm);
  border-bottom: 1px solid var(--wps-border);
  flex-wrap: wrap;
}
.doc-item:last-child { border-bottom: none; }
.doc-item:hover { background: var(--wps-bg); }
.doc-item.drag-over { outline: 2px dashed var(--wps-blue); }

.doc-item-icon { font-size: 1.1rem; flex-shrink: 0; }
.doc-item-name { flex: 1; min-width: 120px; font-weight: 550; color: var(--wps-ink); }
.doc-item-name:hover { color: var(--wps-blue); }
.doc-item-meta { font-size: 0.8rem; color: var(--wps-muted); }

.doc-status-ready { background: #edfaf3 !important; color: #14724a !important; border-color: #bfe9d4 !important; }
.doc-status-processing { background: #eef5ff !important; color: #1c5aa8 !important; }
.doc-status-failed { background: #fdf0f0 !important; color: #932838 !important; }

.doc-empty { color: var(--wps-muted); font-size: 0.92rem; padding: 2rem 0; text-align: center; }

.doc-upload-panel {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  width: min(420px, calc(100vw - 2rem));
  background: var(--wps-surface);
  border: 1px solid var(--wps-border);
  border-radius: var(--wps-radius);
  box-shadow: var(--wps-shadow-lg);
  z-index: 100;
  padding: 1rem;
}

.doc-upload-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.doc-upload-progress {
  height: 4px;
  background: var(--wps-border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.doc-upload-progress-bar {
  height: 100%;
  width: 0;
  background: var(--wps-gradient);
  transition: width 0.2s ease;
}

.doc-upload-summary { font-size: 0.82rem; color: var(--wps-muted); margin-bottom: 0.5rem; }

.doc-upload-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 200px;
  overflow-y: auto;
}

.doc-upload-item {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--wps-border);
}
.doc-upload-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-upload-status { flex-shrink: 0; font-weight: 600; }
.doc-upload-done { color: #14724a; }
.doc-upload-error { color: #932838; }
.doc-upload-pending { color: var(--wps-muted); }

@media (max-width: 900px) {
  .doc-explorer-panes { grid-template-columns: 1fr; }
  .doc-tree-pane { max-height: 200px; border-right: none; border-bottom: 1px solid var(--wps-border); }
}

/* ---------- Viewer ---------- */

.viewer-shell { display: grid; grid-template-columns: 190px 1fr; gap: 1rem; }

.viewer-canvas-wrap {
  position: relative;
  background: #191c22;
  border-radius: var(--wps-radius);
  overflow: hidden;
  min-height: 520px;
  border: 1px solid var(--wps-border);
}
.viewer-canvas-wrap canvas, .viewer-canvas-wrap img { width: 100%; height: auto; display: block; }

.viewer-toolbar { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.75rem; }

.viewer-blackout { position: fixed; inset: 0; background: #000; z-index: 9999; display: none; }

.viewer-watermark {
  position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(-30deg, transparent, transparent 120px, rgba(255,255,255,0.04) 120px, rgba(255,255,255,0.04) 240px);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .wps-nav-toggle-btn { display: inline-flex; }

  .wps-shell { display: block; }

  .wps-sidebar {
    position: fixed;
    top: 59px;
    left: 0;
    bottom: 0;
    width: 260px;
    z-index: 60;
    transform: translateX(-102%);
    transition: transform .22s ease;
    box-shadow: var(--wps-shadow-lg);
    overflow-y: auto;
  }

  .wps-nav-toggle:checked ~ .wps-shell .wps-sidebar { transform: translateX(0); }

  .wps-brand-tag { display: none; }
  .wps-main { padding: 1.4rem 1rem 2.5rem; }
  .wps-card { padding: 1.1rem 1.1rem; }
  .wps-auth-card { padding: 1.9rem 1.4rem 1.7rem; }
}

@media (max-width: 640px) {
  .viewer-shell { grid-template-columns: 1fr; }
  .wps-header { padding: 0.55rem 0.9rem; }
  .wps-brand img { height: 28px; }
  .wps-brand span { font-size: 0.85rem; }
  .wps-title { font-size: 1.25rem; }
}

/* ---------- Print lock ---------- */

@media print {
  body * { visibility: hidden !important; }
  body::before {
    content: "Printing is disabled in the WPS Virtual Data Room.";
    visibility: visible !important;
    display: block;
    font-size: 2rem;
    padding: 4rem;
    color: #000;
  }
}