/* ============================================================
   AkurAI-CRM Design System — Native ESM, No Build
   ============================================================ */

/* ----- Design Tokens ----- */
/* Color tokens aliased to AkurAI-Framework semantic tokens (themes.css).
   Non-color tokens (spacing, type, layout) are independent and unchanged. */
:root {
  /* Sidebar — uses deepest bg layer so it recedes behind content */
  --color-sidebar-bg: var(--bg);
  --color-sidebar-hover: var(--panel);
  --color-sidebar-active: var(--panel-2);
  --color-sidebar-text: var(--muted);
  --color-sidebar-text-active: var(--fg);
  --color-sidebar-brand: var(--accent);

  /* Page / surface */
  --color-bg: var(--bg-2);
  --color-surface: var(--panel);
  --color-surface-hover: var(--panel-2);
  --color-border: var(--border-2);
  --color-border-light: var(--border);

  /* Accent / primary */
  --color-primary: var(--accent);
  --color-primary-hover: var(--accent-2);
  --color-primary-light: color-mix(in srgb, var(--accent) 14%, var(--panel));
  --color-primary-subtle: color-mix(in srgb, var(--accent) 8%, transparent);

  /* Status */
  --color-success: var(--ok);
  --color-success-light: color-mix(in srgb, var(--ok) 14%, var(--panel));
  --color-warning: var(--warn);
  --color-warning-light: color-mix(in srgb, var(--warn) 14%, var(--panel));
  --color-danger: var(--danger);
  --color-danger-light: color-mix(in srgb, var(--danger) 14%, var(--panel));
  --color-info: var(--info);
  --color-info-light: color-mix(in srgb, var(--info) 14%, var(--panel));

  /* Text */
  --color-text: var(--fg);
  --color-text-secondary: var(--muted);
  --color-text-tertiary: var(--muted);
  --color-text-inverse: #ffffff;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', Menlo, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.813rem;
  --text-base: 0.938rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  --sidebar-width: 260px;
  --topbar-height: 64px;
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ----- Reset & Base ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-sans); font-size: var(--text-base); line-height: var(--leading-normal); color: var(--color-text); background: var(--color-bg); }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-hover); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: var(--weight-semibold); line-height: var(--leading-tight); color: var(--color-text); }

/* ----- Layout Shell ----- */
.app-shell { display: flex; min-height: 100vh; }
.main-area { flex: 1; display: flex; flex-direction: column; min-width: 0; margin-left: var(--sidebar-width); }
.main-content { flex: 1; padding: var(--space-8); overflow-y: auto; }

/* ----- Sidebar ----- */
.sidebar { position: fixed; top: 0; left: 0; width: var(--sidebar-width); height: 100vh; background: var(--color-sidebar-bg); display: flex; flex-direction: column; z-index: 50; overflow-y: auto; }
.sidebar-brand { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-6); border-bottom: 1px solid rgba(255,255,255,0.06); }
.sidebar-brand-icon { width: 32px; height: 32px; background: linear-gradient(150deg, var(--color-primary), var(--color-primary-hover)); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0; }
.sidebar-brand-icon svg { width: 18px; height: 18px; display: block; }
.sidebar-brand-text { font-size: var(--text-lg); font-weight: var(--weight-bold); color: var(--color-sidebar-text-active); letter-spacing: -0.02em; }
.sidebar-brand-text span { color: var(--color-sidebar-brand); }

.sidebar-nav { flex: 1; padding: var(--space-3) var(--space-3); display: flex; flex-direction: column; gap: var(--space-1); }
.sidebar-section { padding: var(--space-4) var(--space-4) var(--space-2); font-size: var(--text-xs); font-weight: var(--weight-semibold); text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-sidebar-text); opacity: 0.6; }

.nav-link { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); color: var(--color-sidebar-text); font-size: var(--text-sm); font-weight: var(--weight-medium); transition: all var(--transition-fast); text-decoration: none; }
.nav-link:hover { background: var(--color-sidebar-hover); color: var(--color-sidebar-text-active); }
.nav-link.active { background: var(--color-sidebar-active); color: var(--color-sidebar-text-active); }
.nav-link svg { width: 20px; height: 20px; flex-shrink: 0; opacity: 0.7; }
.nav-link.active svg { opacity: 1; }
.nav-link .badge { margin-left: auto; }

.sidebar-footer { padding: var(--space-4); border-top: 1px solid rgba(255,255,255,0.06); }

/* ----- Top Bar / Header ----- */
.topbar { height: var(--topbar-height); display: flex; align-items: center; padding: 0 var(--space-8); border-bottom: 1px solid var(--color-border); background: var(--color-surface); gap: var(--space-4); flex-shrink: 0; }
.topbar-title { font-size: var(--text-xl); font-weight: var(--weight-semibold); color: var(--color-text); }
.topbar-spacer { flex: 1; }

.search-bar { position: relative; width: 320px; }
.search-bar svg { position: absolute; left: var(--space-3); top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--color-text-tertiary); pointer-events: none; }
.search-bar input { width: 100%; padding: var(--space-2) var(--space-4) var(--space-2) var(--space-10); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: var(--text-sm); color: var(--color-text); background: var(--color-bg); transition: all var(--transition-fast); outline: none; }
.search-bar input:focus { border-color: var(--color-primary); background: var(--color-surface); box-shadow: 0 0 0 3px var(--color-primary-subtle); }
.search-bar input::placeholder { color: var(--color-text-tertiary); }

.topbar-actions { display: flex; align-items: center; gap: var(--space-3); }

.icon-btn { width: 36px; height: 36px; border-radius: var(--radius-md); border: none; background: transparent; color: var(--color-text-secondary); display: flex; align-items: center; justify-content: center; transition: all var(--transition-fast); position: relative; }
.icon-btn:hover { background: var(--color-surface-hover); color: var(--color-text); }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn .dot { position: absolute; top: 6px; right: 6px; width: 8px; height: 8px; background: var(--color-danger); border-radius: 50%; border: 2px solid var(--color-surface); }

.avatar { width: 32px; height: 32px; border-radius: var(--radius-full); background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: var(--text-xs); font-weight: var(--weight-bold); flex-shrink: 0; }
.avatar-sm { width: 28px; height: 28px; font-size: 10px; }
.avatar-lg { width: 48px; height: 48px; font-size: var(--text-lg); }
.avatar-initials { text-transform: uppercase; letter-spacing: 0.02em; }

/* ----- Cards ----- */
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); box-shadow: var(--shadow-sm); transition: box-shadow var(--transition-base), border-color var(--transition-base); }
.card:hover { box-shadow: var(--shadow-md); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-4); }
.card-title { font-size: var(--text-base); font-weight: var(--weight-semibold); color: var(--color-text); }
.card-body { }
.card-footer { margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--color-border); }

/* Stat Cards */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); margin-bottom: var(--space-8); }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); box-shadow: var(--shadow-sm); }
.stat-card .stat-label { font-size: var(--text-sm); color: var(--color-text-secondary); margin-bottom: var(--space-1); }
.stat-card .stat-value { font-size: var(--text-2xl); font-weight: var(--weight-bold); color: var(--color-text); line-height: 1.2; }
.stat-card .stat-change { font-size: var(--text-xs); color: var(--color-success); margin-top: var(--space-1); }
.stat-card .stat-icon { width: 40px; height: 40px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: var(--space-3); }
.stat-card .stat-icon svg { width: 20px; height: 20px; }
.stat-card .stat-icon.indigo { background: var(--color-primary-light); color: var(--color-primary); }
.stat-card .stat-icon.green { background: var(--color-success-light); color: var(--color-success); }
.stat-card .stat-icon.amber { background: var(--color-warning-light); color: var(--color-warning); }
.stat-card .stat-icon.blue { background: var(--color-info-light); color: var(--color-info); }

/* ----- Buttons ----- */
.btn { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-5); border-radius: var(--radius-md); font-size: var(--text-sm); font-weight: var(--weight-medium); border: 1px solid transparent; transition: all var(--transition-fast); white-space: nowrap; line-height: 1.4; }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover { background: var(--color-surface-hover); border-color: var(--color-text-tertiary); }
.btn-danger { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.btn-danger:hover { background: #dc2626; border-color: #dc2626; }
.btn-ghost { background: transparent; color: var(--color-text-secondary); border-color: transparent; }
.btn-ghost:hover { background: var(--color-surface-hover); color: var(--color-text); }
.btn-sm { padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-3) var(--space-6); font-size: var(--text-base); }
.btn-icon { width: 36px; height: 36px; padding: 0; justify-content: center; }
.btn-group { display: flex; gap: var(--space-2); }

/* ----- Forms ----- */
.form-group { margin-bottom: var(--space-5); }
.form-label { display: block; font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--color-text); margin-bottom: var(--space-1); }
.form-label .optional { color: var(--color-text-tertiary); font-weight: var(--weight-normal); }
.form-input, .form-select, .form-textarea { width: 100%; padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: var(--text-sm); color: var(--color-text); background: var(--color-surface); transition: all var(--transition-fast); outline: none; }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-subtle); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--color-text-tertiary); }
.form-textarea { resize: vertical; min-height: 80px; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 32px; }
.form-hint { font-size: var(--text-xs); color: var(--color-text-tertiary); margin-top: var(--space-1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-actions { display: flex; gap: var(--space-3); justify-content: flex-end; margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--color-border); }
.form-inline { display: flex; align-items: center; gap: var(--space-2); }
.form-checkbox { display: flex; align-items: center; gap: var(--space-2); cursor: pointer; font-size: var(--text-sm); }
.form-checkbox input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--color-primary); cursor: pointer; }

/* ----- Tables ----- */
.table-container { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
.table-toolbar { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-6); border-bottom: 1px solid var(--color-border); gap: var(--space-4); }
.table-toolbar .search-bar { width: 240px; }
table { width: 100%; border-collapse: collapse; }
thead { background: var(--color-bg); }
thead th { padding: var(--space-3) var(--space-6); text-align: left; font-size: var(--text-xs); font-weight: var(--weight-semibold); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-secondary); border-bottom: 1px solid var(--color-border); white-space: nowrap; user-select: none; }
thead th.sortable { cursor: pointer; }
thead th.sortable:hover { color: var(--color-text); }
tbody tr { border-bottom: 1px solid var(--color-border-light); transition: background var(--transition-fast); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--color-surface-hover); }
tbody td { padding: var(--space-3) var(--space-6); font-size: var(--text-sm); color: var(--color-text); vertical-align: middle; }
tbody td a { color: var(--color-text); font-weight: var(--weight-medium); }
tbody td a:hover { color: var(--color-primary); }
table .cell-muted { color: var(--color-text-secondary); font-size: var(--text-xs); }

/* ----- Badges / Tags ----- */
.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: var(--radius-full); font-size: var(--text-xs); font-weight: var(--weight-medium); line-height: 1.5; white-space: nowrap; }
.badge-slate { background: var(--panel-2); color: var(--muted); }
.badge-blue { background: var(--color-info-light); color: var(--info); }
.badge-indigo { background: var(--color-primary-light); color: var(--accent); }
.badge-violet { background: color-mix(in srgb, var(--accent-2) 14%, var(--panel)); color: var(--accent-2); }
.badge-amber { background: var(--color-warning-light); color: var(--warn); }
.badge-green { background: var(--color-success-light); color: var(--ok); }
.badge-red { background: var(--color-danger-light); color: var(--danger); }
.badge-gray { background: var(--panel-2); color: var(--muted); }
.badge-new { background: var(--panel-2); color: var(--muted); }

/* ----- Kanban Board ----- */
.kanban-board { display: grid; grid-template-columns: repeat(7, 1fr); gap: var(--space-4); min-height: 500px; overflow-x: auto; padding-bottom: var(--space-4); }
.kanban-column { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg); min-width: 200px; display: flex; flex-direction: column; }
.kanban-header { padding: var(--space-3) var(--space-4); font-size: var(--text-xs); font-weight: var(--weight-semibold); text-transform: uppercase; letter-spacing: 0.06em; border-bottom: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; }
.kanban-header .count { font-size: var(--text-xs); color: var(--color-text-tertiary); font-weight: var(--weight-normal); }
.kanban-cards { padding: var(--space-3); display: flex; flex-direction: column; gap: var(--space-3); flex: 1; }
.kanban-card { background: var(--color-surface); border: 1px solid var(--color-border); border-left: 3px solid var(--color-text-tertiary); border-radius: var(--radius-md); padding: var(--space-4); cursor: grab; transition: all var(--transition-fast); box-shadow: var(--shadow-xs); }
.kanban-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-border); transform: translateY(-1px); }
.kanban-card:active { cursor: grabbing; }
.kanban-card .card-title { font-size: var(--text-sm); font-weight: var(--weight-medium); margin-bottom: var(--space-1); }
.kanban-card .card-subtitle { font-size: var(--text-xs); color: var(--color-text-secondary); }
.kanban-card .card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: var(--space-3); padding-top: var(--space-2); border-top: 1px solid var(--color-border-light); }
.kanban-card .card-amount { font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.kanban-dropzone { min-height: 60px; border: 2px dashed var(--color-border); border-radius: var(--radius-md); margin: var(--space-2); display: flex; align-items: center; justify-content: center; font-size: var(--text-xs); color: var(--color-text-tertiary); }

/* Column stage colors */
.kanban-column.new .kanban-card { border-left-color: var(--muted); }
.kanban-column.screening .kanban-card { border-left-color: var(--info); }
.kanban-column.meeting .kanban-card { border-left-color: var(--accent); }
.kanban-column.proposal .kanban-card { border-left-color: var(--accent-2); }
.kanban-column.negotiation .kanban-card { border-left-color: var(--warn); }
.kanban-column.won .kanban-card { border-left-color: var(--ok); }
.kanban-column.lost .kanban-card { border-left-color: var(--danger); }

/* ----- Pipeline visualization ----- */
.pipeline-chart { display: flex; align-items: flex-end; gap: var(--space-3); height: 200px; padding: var(--space-4) 0; }
.pipeline-bar { flex: 1; display: flex; flex-direction: column; align-items: center; gap: var(--space-2); }
.pipeline-bar .bar { width: 100%; max-width: 60px; border-radius: var(--radius-sm) var(--radius-sm) 0 0; transition: height var(--transition-slow); min-height: 4px; }
.pipeline-bar .bar-label { font-size: var(--text-xs); color: var(--color-text-secondary); white-space: nowrap; }
.pipeline-bar .bar-value { font-size: var(--text-xs); font-weight: var(--weight-semibold); }

/* ----- Activity Feed / Timeline ----- */
.feed { display: flex; flex-direction: column; gap: 0; }
.feed-item { display: flex; gap: var(--space-4); padding: var(--space-4) 0; border-bottom: 1px solid var(--color-border-light); }
.feed-item:last-child { border-bottom: none; }
.feed-icon { width: 32px; height: 32px; border-radius: var(--radius-full); background: var(--color-bg); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--color-text-secondary); }
.feed-icon svg { width: 16px; height: 16px; }
.feed-content { flex: 1; min-width: 0; }
.feed-content .feed-text { font-size: var(--text-sm); color: var(--color-text); }
.feed-content .feed-text strong { font-weight: var(--weight-semibold); }
.feed-content .feed-meta { font-size: var(--text-xs); color: var(--color-text-tertiary); margin-top: 2px; }
.feed-content .feed-preview { font-size: var(--text-xs); color: var(--color-text-secondary); margin-top: var(--space-1); }
.feed-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.feed-line { width: 2px; background: var(--color-border); margin: 0 auto; flex: 1; }

/* Timeline (vertical) */
.timeline { position: relative; padding-left: var(--space-8); }
.timeline::before { content: ''; position: absolute; left: 15px; top: 4px; bottom: 4px; width: 2px; background: var(--color-border); }
.timeline-item { position: relative; padding-bottom: var(--space-6); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot { position: absolute; left: calc(-1 * var(--space-8) + 8px); top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--color-surface); border: 2px solid var(--color-border); z-index: 1; }
.timeline-dot.primary { border-color: var(--color-primary); background: var(--color-primary-light); }
.timeline-dot.success { border-color: var(--color-success); background: var(--color-success-light); }
.timeline-dot.warning { border-color: var(--color-warning); background: var(--color-warning-light); }
.timeline-dot.danger { border-color: var(--color-danger); background: var(--color-danger-light); }
.timeline-content { }
.timeline-title { font-size: var(--text-sm); font-weight: var(--weight-medium); }
.timeline-text { font-size: var(--text-sm); color: var(--color-text-secondary); margin-top: 2px; }
.timeline-meta { font-size: var(--text-xs); color: var(--color-text-tertiary); margin-top: 2px; }

/* ----- Tasks ----- */
.task-list { display: flex; flex-direction: column; }
.task-item { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border-light); transition: background var(--transition-fast); }
.task-item:last-child { border-bottom: none; }
.task-item:hover { background: var(--color-surface-hover); }
.task-checkbox { width: 18px; height: 18px; accent-color: var(--color-primary); cursor: pointer; flex-shrink: 0; }
.task-title { flex: 1; font-size: var(--text-sm); color: var(--color-text); }
.task-item.done .task-title { text-decoration: line-through; color: var(--color-text-tertiary); }
.task-meta { display: flex; align-items: center; gap: var(--space-2); flex-shrink: 0; }
.task-due { font-size: var(--text-xs); color: var(--color-text-secondary); }
.task-entity { font-size: var(--text-xs); color: var(--color-primary); }
.task-filter-tabs { display: flex; gap: var(--space-1); padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); }
.task-filter-tab { padding: var(--space-1) var(--space-3); border-radius: var(--radius-sm); font-size: var(--text-xs); font-weight: var(--weight-medium); color: var(--color-text-secondary); cursor: pointer; border: none; background: transparent; transition: all var(--transition-fast); }
.task-filter-tab:hover { background: var(--color-surface-hover); color: var(--color-text); }
.task-filter-tab.active { background: var(--color-primary); color: #fff; }

/* ----- Notes Grid ----- */
.notes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-4); }
.note-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-5); cursor: pointer; transition: all var(--transition-fast); box-shadow: var(--shadow-sm); }
.note-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--color-primary-light); }
.note-card .note-date { font-size: var(--text-xs); color: var(--color-text-tertiary); margin-bottom: var(--space-2); }
.note-card .note-title { font-size: var(--text-base); font-weight: var(--weight-semibold); margin-bottom: var(--space-2); color: var(--color-text); }
.note-card .note-preview { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: var(--leading-relaxed); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.note-card .note-tags { display: flex; gap: var(--space-2); margin-top: var(--space-3); flex-wrap: wrap; }

/* ----- Detail Panel / Slide Over ----- */
.detail-panel { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.detail-header { display: flex; align-items: flex-start; gap: var(--space-5); padding: var(--space-8); border-bottom: 1px solid var(--color-border); }
.detail-avatar { width: 64px; height: 64px; border-radius: var(--radius-xl); background: var(--color-primary-light); color: var(--color-primary); display: flex; align-items: center; justify-content: center; font-size: var(--text-2xl); font-weight: var(--weight-bold); flex-shrink: 0; }
.detail-info { flex: 1; }
.detail-info h1 { font-size: var(--text-2xl); font-weight: var(--weight-bold); margin-bottom: var(--space-1); }
.detail-info .detail-subtitle { font-size: var(--text-sm); color: var(--color-text-secondary); }
.detail-info .detail-subtitle a { color: var(--color-primary); }

.detail-actions { display: flex; gap: var(--space-2); }

.detail-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--color-border); padding: 0 var(--space-8); }
.detail-tab { padding: var(--space-3) var(--space-5); font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--color-text-secondary); border-bottom: 2px solid transparent; cursor: pointer; transition: all var(--transition-fast); background: transparent; border-top: none; border-left: none; border-right: none; }
.detail-tab:hover { color: var(--color-text); }
.detail-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

.detail-body { padding: var(--space-8); }

.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); }
.info-field { }
.info-field .info-label { font-size: var(--text-xs); font-weight: var(--weight-semibold); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-tertiary); margin-bottom: var(--space-1); }
.info-field .info-value { font-size: var(--text-sm); color: var(--color-text); }
.info-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); margin-bottom: var(--space-4); }
.info-card h3 { font-size: var(--text-sm); font-weight: var(--weight-semibold); margin-bottom: var(--space-3); color: var(--color-text); }

/* Stage Progression */
.stage-progress { display: flex; align-items: center; gap: 0; padding: var(--space-4) 0; }
.stage-step { display: flex; flex-direction: column; align-items: center; gap: var(--space-1); flex: 1; position: relative; }
.stage-step .stage-circle { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: var(--weight-bold); border: 2px solid var(--color-border); background: var(--color-surface); color: var(--color-text-tertiary); z-index: 1; transition: all var(--transition-fast); }
.stage-step .stage-label { font-size: 10px; color: var(--color-text-tertiary); white-space: nowrap; text-align: center; }
.stage-step.completed .stage-circle { background: var(--color-success); border-color: var(--color-success); color: #fff; }
.stage-step.completed .stage-label { color: var(--color-success); }
.stage-step.active .stage-circle { background: var(--color-primary); border-color: var(--color-primary); color: #fff; box-shadow: 0 0 0 4px var(--color-primary-subtle); }
.stage-step.active .stage-label { color: var(--color-primary); font-weight: var(--weight-medium); }
.stage-connector { flex: 1; height: 2px; background: var(--color-border); margin: 0 -1px; }
.stage-connector.completed { background: var(--color-success); }

/* ----- Modal / Dialog ----- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; z-index: 100; opacity: 0; visibility: hidden; transition: all var(--transition-base); }
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal { background: var(--color-surface); border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); width: 100%; max-width: 520px; max-height: 80vh; overflow-y: auto; transform: scale(0.95) translateY(10px); transition: transform var(--transition-base); }
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-border); }
.modal-header h2 { font-size: var(--text-lg); font-weight: var(--weight-semibold); }
.modal-close { width: 32px; height: 32px; border-radius: var(--radius-md); border: none; background: transparent; color: var(--color-text-secondary); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all var(--transition-fast); }
.modal-close:hover { background: var(--color-surface-hover); color: var(--color-text); }
.modal-body { padding: var(--space-6); }
.modal-footer { display: flex; align-items: center; justify-content: flex-end; gap: var(--space-3); padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-border); }

/* ----- Toast / Notifications ----- */
.toast-container { position: fixed; top: var(--space-4); right: var(--space-4); z-index: 200; display: flex; flex-direction: column; gap: var(--space-3); }
.toast { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-5); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); font-size: var(--text-sm); min-width: 300px; max-width: 420px; animation: toastIn var(--transition-base) ease forwards; }
.toast.toast-success { border-left: 3px solid var(--color-success); }
.toast.toast-error { border-left: 3px solid var(--color-danger); }
.toast.toast-warning { border-left: 3px solid var(--color-warning); }
.toast.toast-info { border-left: 3px solid var(--color-info); }
.toast .toast-icon { width: 20px; height: 20px; flex-shrink: 0; }
.toast .toast-message { flex: 1; }
.toast .toast-close { width: 20px; height: 20px; border: none; background: transparent; cursor: pointer; color: var(--color-text-tertiary); padding: 0; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.toast .toast-close:hover { color: var(--color-text); }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(20px); } }

/* ----- Empty State ----- */
.empty-state { text-align: center; padding: var(--space-12) var(--space-6); }
.empty-state-icon { width: 64px; height: 64px; margin: 0 auto var(--space-4); background: var(--color-bg); border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; color: var(--color-text-tertiary); }
.empty-state-icon svg { width: 28px; height: 28px; }
.empty-state h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); color: var(--color-text); }
.empty-state p { font-size: var(--text-sm); color: var(--color-text-secondary); max-width: 360px; margin: 0 auto var(--space-6); }

/* ----- Pagination ----- */
.pagination { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-border); }
.pagination-info { font-size: var(--text-xs); color: var(--color-text-tertiary); }
.pagination-buttons { display: flex; gap: var(--space-1); }
.pagination-btn { width: 32px; height: 32px; border-radius: var(--radius-md); border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text-secondary); display: flex; align-items: center; justify-content: center; font-size: var(--text-xs); cursor: pointer; transition: all var(--transition-fast); }
.pagination-btn:hover { background: var(--color-surface-hover); border-color: var(--color-text-tertiary); }
.pagination-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ----- Loading / Skeleton ----- */
.skeleton { background: linear-gradient(90deg, var(--color-border-light) 25%, var(--color-border) 50%, var(--color-border-light) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
.skeleton-text { height: 14px; margin-bottom: var(--space-2); width: 100%; }
.skeleton-text.short { width: 60%; }
.skeleton-avatar { width: 40px; height: 40px; border-radius: var(--radius-full); }
.skeleton-card { height: 100px; border-radius: var(--radius-lg); }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

.loading-spinner { width: 24px; height: 24px; border: 3px solid var(--color-border); border-top-color: var(--color-primary); border-radius: 50%; animation: spin 0.6s linear infinite; }
.loading-spinner-sm { width: 16px; height: 16px; border-width: 2px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ----- Settings Layout ----- */
.settings-layout { display: flex; gap: var(--space-8); max-width: 960px; }
.settings-nav { width: 200px; flex-shrink: 0; }
.settings-nav-item { display: block; padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); font-size: var(--text-sm); color: var(--color-text-secondary); cursor: pointer; transition: all var(--transition-fast); border: none; background: none; width: 100%; text-align: left; }
.settings-nav-item:hover { background: var(--color-surface-hover); color: var(--color-text); }
.settings-nav-item.active { background: var(--color-primary-light); color: var(--color-primary); font-weight: var(--weight-medium); }
.settings-section { flex: 1; }
.settings-section-title { font-size: var(--text-lg); font-weight: var(--weight-semibold); margin-bottom: var(--space-1); }
.settings-section-desc { font-size: var(--text-sm); color: var(--color-text-secondary); margin-bottom: var(--space-6); }
.settings-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); margin-bottom: var(--space-6); }

/* ----- Transitions ----- */
.fade-in { animation: fadeIn var(--transition-base) ease forwards; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.slide-up { animation: slideUp var(--transition-base) ease forwards; }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* ----- Login Page ----- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); position: relative; overflow: hidden; }
.login-page::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at 30% 50%, color-mix(in srgb, var(--accent) 8%, transparent) 0%, transparent 50%), radial-gradient(circle at 70% 50%, color-mix(in srgb, var(--accent) 6%, transparent) 0%, transparent 50%); pointer-events: none; }
.login-card { position: relative; background: var(--color-surface); border-radius: var(--radius-xl); padding: var(--space-10); width: 100%; max-width: 420px; box-shadow: var(--shadow-xl); }
.login-brand { text-align: center; margin-bottom: var(--space-8); }
.login-brand .brand-icon { width: 48px; height: 48px; background: linear-gradient(150deg, var(--color-primary), var(--color-primary-hover)); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; margin: 0 auto var(--space-4); color: #fff; }
.login-brand .brand-icon svg { width: 28px; height: 28px; display: block; }
.login-brand h1 { font-size: var(--text-2xl); font-weight: var(--weight-bold); color: var(--color-text); }
.login-brand p { font-size: var(--text-sm); color: var(--color-text-secondary); margin-top: var(--space-1); }
.login-error { background: var(--color-danger-light); color: #dc2626; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); font-size: var(--text-sm); margin-bottom: var(--space-4); display: none; }
.login-footer { text-align: center; margin-top: var(--space-6); font-size: var(--text-sm); color: var(--color-text-secondary); }
.login-footer a { color: var(--color-primary); font-weight: var(--weight-medium); }

/* ----- Page Header ----- */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-6); }
.page-header h1 { font-size: var(--text-2xl); font-weight: var(--weight-bold); }
.page-header-actions { display: flex; gap: var(--space-3); }

/* ----- Two-column layout ----- */
.two-col { display: grid; grid-template-columns: 1fr 380px; gap: var(--space-8); }
.two-col-main { min-width: 0; }
.two-col-side { min-width: 0; }

/* ----- People list inline avatar ----- */
.person-cell { display: flex; align-items: center; gap: var(--space-3); }
.person-cell .avatar { width: 28px; height: 28px; font-size: 10px; }

/* ----- Responsive ----- */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .kanban-board { grid-template-columns: repeat(4, 1fr); }
  .info-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-area { margin-left: 0; }
  .main-content { padding: var(--space-4); }
  .topbar { padding: 0 var(--space-4); }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .search-bar { width: 200px; }
  .kanban-board { grid-template-columns: repeat(2, 1fr); }
  .settings-layout { flex-direction: column; }
  .settings-nav { width: 100%; display: flex; gap: var(--space-1); overflow-x: auto; }
  .form-row { grid-template-columns: 1fr; }
  .notes-grid { grid-template-columns: 1fr; }
  .detail-tabs { overflow-x: auto; }
  .login-card { margin: var(--space-4); padding: var(--space-6); }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .kanban-board { grid-template-columns: 1fr; }
}

/* ----- Theme Picker — token-driven, re-themes with everything else ----- */
.theme-picker { display: inline-flex; align-items: center; }
.theme-select {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  padding: 6px 28px 6px 11px;
  cursor: pointer;
  line-height: 1.2;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 15px) center, calc(100% - 10px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  transition: border-color .15s ease, background-color .15s ease;
}
.theme-select:hover { border-color: var(--fg); }
.theme-select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.theme-select optgroup { color: var(--fg); background: var(--panel); font-weight: 700; }
.theme-select option { color: var(--fg); background: var(--panel); font-weight: 500; }