/* =========================================================================
   DEAL VAULT — DESIGN SYSTEM
   Dark-first (default). Light theme via [data-theme="light"] on <html>.
   ========================================================================= */

:root {
  /* Brand */
  --accent: #3B7BFF;
  --accent-2: #6FA1FF;
  --accent-soft: rgba(59,123,255,0.14);

  /* Dark surfaces */
  --bg:        #070b14;
  --bg-2:      #0b1322;
  --panel:     rgba(255,255,255,0.04);
  --panel-2:   rgba(255,255,255,0.06);
  --border:    rgba(255,255,255,0.08);
  --border-2:  rgba(255,255,255,0.14);

  /* Text */
  --text:      #E2E8F0;
  --text-2:    #94A3B8;
  --text-3:    #64748B;
  --text-mute: #334155;

  /* States */
  --success: #10B981;
  --warning: #F59E0B;
  --error:   #F43F5E;
  --info:    #38BDF8;

  /* Radii */
  --r-sm: 8px;
  --r:    12px;
  --r-lg: 16px;
  --r-xl: 22px;

  /* Spacing scale */
  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px;
  --s-5: 20px; --s-6: 24px; --s-7: 32px; --s-8: 40px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow:    0 8px 24px rgba(0,0,0,.35);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.5);

  /* Type */
  --font-sans: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Fira Code', 'Consolas', ui-monospace, monospace;

  /* Layout */
  --sidebar-w: 264px;
  --topbar-h:  60px;
}

html[data-theme="light"] {
  --bg:       #F6F8FB;
  --bg-2:     #FFFFFF;
  --panel:    rgba(15,23,42,0.03);
  --panel-2:  rgba(15,23,42,0.05);
  --border:   rgba(15,23,42,0.10);
  --border-2: rgba(15,23,42,0.18);
  --text:     #0F172A;
  --text-2:   #475569;
  --text-3:   #64748B;
  --text-mute:#94A3B8;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow:    0 8px 24px rgba(15,23,42,.08);
  --shadow-lg: 0 24px 60px rgba(15,23,42,.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Body background gradient for depth */
body::before {
  content: "";
  position: fixed; inset: 0;
  background:
    radial-gradient(900px 600px at 10% -10%, rgba(59,123,255,0.08), transparent 60%),
    radial-gradient(800px 500px at 110% 110%, rgba(99,102,241,0.06), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
html[data-theme="light"] body::before { opacity: .5; }

/* ------------------------- Typography ------------------------- */
h1,h2,h3,h4,h5 { margin: 0 0 var(--s-3); font-weight: 700; letter-spacing: -0.01em; color: var(--text); }
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 17px; }
h4 { font-size: 14px; }
p  { margin: 0 0 var(--s-3); color: var(--text-2); }
small, .muted { color: var(--text-2); }
.text-dim { color: var(--text-3); }
.text-mute { color: var(--text-mute); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, .mono { font-family: var(--font-mono); font-size: 12.5px; }

/* ------------------------- Layout shell ------------------------- */
.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}
.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: sticky; top: 0;
  height: 100vh;
  overflow: hidden;
}
.main-content {
  flex: 1;
  min-width: 0;
  display: flex; flex-direction: column;
}
.topbar {
  height: var(--topbar-h);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  display: flex; align-items: center;
  padding: 0 var(--s-6);
  gap: var(--s-4);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1, .topbar .title { font-size: 16px; margin: 0; }
.topbar .spacer { flex: 1; }
.page {
  padding: var(--s-6);
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* ------------------------- Sidebar ------------------------- */
.sb-brand {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-5) var(--s-5) var(--s-4);
  border-bottom: 1px solid var(--border);
}
.sb-brand .mark {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  display: grid; place-items: center;
  color: #fff; font-weight: 800;
  box-shadow: 0 4px 14px rgba(59,123,255,0.4);
}
.sb-brand .name { font-weight: 700; letter-spacing: .2px; }
.sb-brand .name small { display: block; color: var(--text-3); font-weight: 500; font-size: 11px; }

.sb-nav { flex: 1; overflow-y: auto; padding: var(--s-4) var(--s-3); }
.sb-section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-3);
  padding: var(--s-4) var(--s-3) var(--s-2);
}
.sb-link {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 9px var(--s-3);
  border-radius: var(--r-sm);
  color: var(--text-2);
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  transition: background .15s, color .15s;
}
.sb-link:hover { background: var(--panel); color: var(--text); text-decoration: none; }
.sb-link.active { background: var(--accent-soft); color: var(--accent-2); }
.sb-link i, .sb-link svg { width: 18px; text-align: center; }

.sb-foot {
  padding: var(--s-4) var(--s-5);
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: var(--s-3);
  background: var(--bg-2);
}
.sb-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, var(--accent));
  display: grid; place-items: center; color: #fff; font-weight: 700;
}
.sb-foot .meta { line-height: 1.2; }
.sb-foot .meta b { display: block; font-size: 13px; }
.sb-foot .meta small { font-size: 11px; color: var(--text-3); }

/* ------------------------- Glass panels ------------------------- */
.glass-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-5);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.kpi-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-5);
  display: flex; flex-direction: column; gap: var(--s-2);
}
.kpi-card .label { color: var(--text-3); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.kpi-card .value { font-size: 24px; font-weight: 700; color: var(--text); }
.kpi-card .delta { font-size: 12px; color: var(--success); }
.kpi-card .delta.neg { color: var(--error); }

.grid { display: grid; gap: var(--s-4); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
}

/* ------------------------- Buttons ------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--s-2);
  padding: 9px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-2);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  font-size: 13.5px;
  font-family: inherit;
  transition: transform .08s, background .15s, border-color .15s, box-shadow .15s;
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { background: var(--panel); border-color: var(--accent); color: var(--text); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #6366f1);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 18px rgba(59,123,255,0.32);
}
.btn-primary:hover { filter: brightness(1.05); color: #fff; box-shadow: 0 8px 22px rgba(59,123,255,0.45); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--panel); border-color: var(--border); color: var(--text); }
.btn-danger { background: rgba(244,63,94,0.12); border-color: rgba(244,63,94,0.4); color: #FFB1C0; }
.btn-danger:hover { background: rgba(244,63,94,0.2); border-color: var(--error); color: #FFDCE3; }
.btn-success { background: rgba(16,185,129,0.14); border-color: rgba(16,185,129,0.4); color: #6EE7B7; }
.btn-sm { padding: 6px 10px; font-size: 12.5px; border-radius: 7px; }
.btn-lg { padding: 12px 20px; font-size: 15px; }
.btn-block { width: 100%; }

/* ------------------------- Inputs ------------------------- */
.input, textarea.input, select.input {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-2);
  background: var(--bg-2);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.label { display: block; font-size: 12.5px; color: var(--text-2); margin-bottom: 6px; font-weight: 500; }
.field { margin-bottom: var(--s-4); }

/* ------------------------- Tabs ------------------------- */
.tab-nav {
  display: flex; gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--s-5);
  overflow-x: auto;
}
.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-2);
  padding: 12px var(--s-4);
  cursor: pointer;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
  transition: color .15s, border-color .15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent-2); border-bottom-color: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ------------------------- Badges & chips ------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--text-2);
  font-weight: 600;
  letter-spacing: .02em;
}
.badge.success { background: rgba(16,185,129,.12); color: #6EE7B7; border-color: rgba(16,185,129,.35); }
.badge.warning { background: rgba(245,158,11,.12); color: #FCD34D; border-color: rgba(245,158,11,.35); }
.badge.error   { background: rgba(244,63,94,.12); color: #FFB1C0; border-color: rgba(244,63,94,.35); }
.badge.info    { background: rgba(56,189,248,.12); color: #7DD3FC; border-color: rgba(56,189,248,.35); }
.badge.brand   { background: var(--accent-soft); color: var(--accent-2); border-color: rgba(59,123,255,.35); }
.badge .dot    { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ------------------------- Tables ------------------------- */
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.tbl th, .tbl td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.tbl th {
  color: var(--text-3);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.tbl tr:hover td { background: var(--panel); }

/* ===========================================================
   VDR — the centerpiece
   =========================================================== */
.vdr-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--s-4);
  min-height: 540px;
}
@media (max-width: 900px) { .vdr-shell { grid-template-columns: 1fr; } }

.vdr-folder-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-3);
  display: flex; flex-direction: column;
}
.vdr-folder-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-2) var(--s-3) var(--s-3);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--s-2);
}
.vdr-folder-panel-header h4 { margin: 0; font-size: 12px; text-transform: uppercase; letter-spacing: .07em; color: var(--text-3); }
.vdr-folder-list { flex: 1; overflow-y: auto; }
.vdr-folder-row {
  display: flex; align-items: center; gap: var(--s-2);
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-2);
  font-size: 13.5px;
  font-weight: 500;
  position: relative;
  transition: background .12s, color .12s;
}
.vdr-folder-row:hover { background: var(--panel-2); color: var(--text); }
.vdr-folder-row.active { background: var(--accent-soft); color: var(--accent-2); }
.vdr-folder-arrow { width: 12px; color: var(--text-3); }
.vdr-folder-icon { color: var(--accent); width: 16px; }
.vdr-folder-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.vdr-folder-badge {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text-3);
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 999px;
  font-weight: 600;
}
.vdr-folder-row.active .vdr-folder-badge { background: rgba(59,123,255,.18); color: var(--accent-2); border-color: rgba(59,123,255,.4); }
.vdr-folder-delete {
  opacity: 0;
  background: transparent;
  border: none;
  color: var(--error);
  cursor: pointer;
  padding: 2px 4px;
  font-size: 12px;
}
.vdr-folder-row:hover .vdr-folder-delete { opacity: .7; }
.vdr-folder-delete:hover { opacity: 1 !important; }

.vdr-add-folder {
  margin-top: var(--s-2);
  display: flex; gap: 6px;
  padding: var(--s-2);
  border-top: 1px solid var(--border);
}
.vdr-add-folder input { flex: 1; padding: 7px 10px; font-size: 13px; }

/* File panel */
.vdr-file-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  display: flex; flex-direction: column;
  min-height: 540px;
}
.vdr-file-header {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--border);
}
.vdr-file-header h3 { margin: 0; font-size: 15px; }
.vdr-file-header .spacer { flex: 1; }
.vdr-file-body { flex: 1; padding: var(--s-3) var(--s-3) var(--s-4); overflow-y: auto; }

.file-row {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 10px 12px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  margin-bottom: 4px;
  transition: background .12s, border-color .12s;
}
.file-row:hover { background: var(--panel-2); border-color: var(--border); }
.file-icon {
  width: 38px; height: 38px;
  border-radius: 8px;
  display: grid; place-items: center;
  font-size: 11px; font-weight: 800; letter-spacing: .02em;
  color: #fff;
  flex: 0 0 38px;
  background: linear-gradient(135deg, #6366f1, var(--accent));
}
.file-icon.pdf  { background: linear-gradient(135deg, #ef4444, #f59e0b); }
.file-icon.xls,
.file-icon.xlsx { background: linear-gradient(135deg, #10b981, #059669); }
.file-icon.doc,
.file-icon.docx { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.file-icon.ppt,
.file-icon.pptx { background: linear-gradient(135deg, #f97316, #ea580c); }
.file-icon.img  { background: linear-gradient(135deg, #ec4899, #a855f7); }
.file-icon.zip  { background: linear-gradient(135deg, #6b7280, #374151); }
.file-info { flex: 1; min-width: 0; }
.file-name { font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-meta { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.file-actions { display: flex; gap: 4px; }
.file-action-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-3);
  width: 30px; height: 30px;
  border-radius: 7px;
  display: grid; place-items: center;
  cursor: pointer;
  transition: color .12s, background .12s, border-color .12s;
}
.file-action-btn:hover { color: var(--text); background: var(--panel); border-color: var(--border); }
.file-action-btn.danger:hover { color: var(--error); background: rgba(244,63,94,.1); border-color: rgba(244,63,94,.3); }

.vdr-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--s-8) var(--s-5);
  color: var(--text-3);
  text-align: center;
}
.vdr-empty i, .vdr-empty .ico {
  font-size: 36px;
  margin-bottom: var(--s-3);
  opacity: .5;
}

/* Drop zone */
.dropzone {
  border: 2px dashed var(--border-2);
  border-radius: var(--r);
  padding: var(--s-6);
  text-align: center;
  color: var(--text-2);
  transition: border-color .15s, background .15s;
  cursor: pointer;
  margin: var(--s-3) var(--s-3) 0;
}
.dropzone:hover, .dropzone.is-drag {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}
.dropzone i, .dropzone .ico { font-size: 26px; display: block; margin-bottom: 8px; color: var(--accent); }

/* Drive status pill */
.drive-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(16,185,129,.12);
  border: 1px solid rgba(16,185,129,.35);
  color: #6EE7B7;
}
.drive-pill.syncing { background: rgba(245,158,11,.12); color: #FCD34D; border-color: rgba(245,158,11,.35); }
.drive-pill.error   { background: rgba(244,63,94,.12); color: #FFB1C0; border-color: rgba(244,63,94,.35); }
.drive-pill .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: pulse 1.4s infinite; }
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .4 } }

/* Modal */
.modal-bg {
  position: fixed; inset: 0;
  background: rgba(7,11,20,0.7);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center; justify-content: center;
  z-index: 999;
  padding: var(--s-5);
}
.modal-bg.open { display: flex; }
.modal {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  overflow: hidden;
  animation: modalIn .18s ease-out;
}
@keyframes modalIn { from { transform: translateY(8px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-head { padding: var(--s-5); border-bottom: 1px solid var(--border); display: flex; align-items: center; }
.modal-head h3 { margin: 0; flex: 1; }
.modal-body { padding: var(--s-5); }
.modal-foot { padding: var(--s-4) var(--s-5); border-top: 1px solid var(--border); display: flex; gap: var(--s-2); justify-content: flex-end; }

/* Toast */
.toast-stack {
  position: fixed;
  bottom: var(--s-5); right: var(--s-5);
  display: flex; flex-direction: column; gap: 8px;
  z-index: 9999;
  max-width: 360px;
}
.toast {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--r);
  padding: 12px 14px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: var(--shadow-lg);
  font-size: 13.5px;
  color: var(--text);
  animation: toastIn .2s ease-out;
  border-left: 3px solid var(--accent);
}
.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--error); }
.toast.warning { border-left-color: var(--warning); }
.toast .ico { font-size: 16px; }
.toast.success .ico { color: var(--success); }
.toast.error   .ico { color: var(--error); }
.toast.warning .ico { color: var(--warning); }
@keyframes toastIn { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Skeleton */
.skel {
  display: inline-block;
  background: linear-gradient(90deg, var(--panel) 0%, var(--panel-2) 50%, var(--panel) 100%);
  background-size: 200% 100%;
  animation: skel 1.4s infinite;
  border-radius: 6px;
  height: 14px;
}
@keyframes skel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Utility */
.row { display: flex; align-items: center; gap: var(--s-3); }
.col { display: flex; flex-direction: column; gap: var(--s-3); }
.gap-2 { gap: var(--s-2); }
.gap-3 { gap: var(--s-3); }
.gap-4 { gap: var(--s-4); }
.mt-2 { margin-top: var(--s-2); } .mt-3 { margin-top: var(--s-3); } .mt-4 { margin-top: var(--s-4); } .mt-5 { margin-top: var(--s-5); } .mt-6 { margin-top: var(--s-6); }
.mb-2 { margin-bottom: var(--s-2); } .mb-3 { margin-bottom: var(--s-3); } .mb-4 { margin-bottom: var(--s-4); } .mb-5 { margin-bottom: var(--s-5); }
.flex-1 { flex: 1; }
.hidden { display: none !important; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.right { margin-left: auto; }

/* Scrollbars (subtle) */
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; }
*::-webkit-scrollbar-thumb:hover { background: var(--border-2); }

/* Auth pages */
.auth-shell {
  min-height: 100vh;
  display: grid; place-items: center;
  padding: var(--s-6);
  position: relative; z-index: 1;
}
.auth-card {
  width: 100%; max-width: 440px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--s-7);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.auth-brand { display: flex; align-items: center; gap: 12px; margin-bottom: var(--s-6); }
.auth-brand .mark { width: 40px; height: 40px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), #6366f1); display: grid; place-items: center; color: #fff; font-weight: 800; }
