/* Synapse — refined modern dark theme */
:root {
  --bg: #0c0e15;
  --bg-soft: #11141d;
  --panel: #161a24;
  --panel-2: #1b2030;
  --border: #262c3a;
  --border-hot: #394257;
  --text: #e6eaf3;
  --muted: #8c95ac;

  --accent: #7c93ff;        /* calm indigo */
  --accent-2: #b08bff;      /* soft violet */
  --accent-soft: rgba(124, 147, 255, 0.12);
  --green: #4cd6a0;
  --danger: #ff6b81;
  --amber: #efb44b;

  --radius: 14px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.25);

  --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html, body { margin: 0; height: 100%; }

body {
  font-family: var(--font-ui);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  background-color: var(--bg);
  background-image:
    radial-gradient(1000px 560px at 82% -12%, rgba(124, 147, 255, 0.10), transparent 60%),
    radial-gradient(820px 520px at 6% 8%, rgba(176, 139, 255, 0.07), transparent 58%);
  background-attachment: fixed;
}

.app {
  display: grid;
  grid-template-columns: 252px 1fr;
  height: 100vh;
}

/* ---------- sidebar ---------- */
.sidebar {
  background: rgba(17, 20, 29, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 22px 16px;
}

.brand { display: flex; align-items: center; gap: 12px; padding: 4px 8px 20px; }
.brand-icon { display: inline-flex; }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-text strong {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-text small { color: var(--muted); font-size: 12px; }

.search-box { position: relative; margin-bottom: 16px; }
.search-box .search-icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 14px; pointer-events: none;
}
.search-box input { width: 100%; padding-left: 34px; font-size: 13px; }

.nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 500;
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}
.nav-item:hover { background: rgba(255, 255, 255, 0.04); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: #fff; }
.nav-icon { width: 18px; text-align: center; opacity: 0.9; }
.nav-badge {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: 999px;
}
.nav-badge.empty { opacity: 0.4; }

.sidebar-footer { display: flex; gap: 8px; padding-top: 14px; border-top: 1px solid var(--border); }
.ghost-btn {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 9px;
  border-radius: 9px;
  font-size: 12px;
  cursor: pointer;
  transition: 0.15s;
}
.ghost-btn:hover { color: var(--text); border-color: var(--border-hot); }

/* ---------- main ---------- */
.main { overflow-y: auto; padding: 30px 38px 64px; }
.topbar { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 24px; gap: 16px; }
.topbar h1 { margin: 0; font-family: var(--font-display); font-size: 25px; font-weight: 700; letter-spacing: -0.01em; }
.topbar .muted { margin: 5px 0 0; font-size: 14px; }
.topbar-meta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.muted { color: var(--muted); }
.tiny { font-size: 11px; }
.small { font-size: 13px; }
.danger { color: var(--danger); }

/* ---------- hero / stats ---------- */
.hero { margin-bottom: 22px; }
.hero h2 { margin: 0 0 5px; font-family: var(--font-display); font-size: 22px; font-weight: 600; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; margin-bottom: 26px; }
.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 17px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  transition: transform 0.14s, border-color 0.15s, box-shadow 0.15s;
}
.stat-card:hover { transform: translateY(-2px); border-color: var(--border-hot); box-shadow: var(--shadow-sm); }
.stat-icon { font-size: 15px; color: var(--muted); }
.stat-value { font-family: var(--font-display); font-size: 30px; font-weight: 700; }
.stat-label { font-size: 12px; color: var(--muted); }
.stat-card.danger .stat-value { color: var(--danger); }
.stat-card.danger .stat-icon { color: var(--danger); }

/* ---------- panels ---------- */
.dash-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 13px; }
.panel-head h3 { margin: 0; font-family: var(--font-display); font-size: 15px; font-weight: 600; }
.link-btn { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 13px; font-weight: 500; }
.link-btn:hover { text-decoration: underline; }

/* ---------- lists / todos ---------- */
.list { display: flex; flex-direction: column; gap: 8px; }
.big-list { margin-top: 18px; }

.todo {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 12px 13px;
  transition: border-color 0.15s;
}
.todo:hover { border-color: var(--border-hot); }
.todo.done { opacity: 0.55; }
.todo.done .todo-text { text-decoration: line-through; }
.check {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 7px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--green);
  cursor: pointer;
  font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: 0.15s;
}
.check:hover { border-color: var(--green); }
.todo.done .check { background: var(--green); border-color: var(--green); color: #06281a; }
.todo-body { flex: 1; min-width: 0; }
.todo-text { font-size: 14px; word-break: break-word; }
.todo-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 7px; }

.tag {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  border: 1px solid var(--border);
}
.tag-soft { background: var(--accent-soft); color: #c2ccff; border-color: transparent; }
.tag-proj { color: #cbbcff; border-color: rgba(176, 139, 255, 0.3); }
.tag-danger { color: var(--danger); border-color: rgba(255, 107, 129, 0.4); }
.prio-high { color: var(--danger); border-color: rgba(255, 107, 129, 0.35); }
.prio-medium { color: var(--amber); border-color: rgba(239, 180, 75, 0.3); }
.prio-low { color: var(--muted); }

.icon-btn {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 13px; padding: 4px 6px; border-radius: 7px; flex-shrink: 0; transition: 0.15s;
}
.icon-btn:hover { color: var(--danger); background: rgba(255, 107, 129, 0.1); }

/* ---------- forms ---------- */
input, textarea, select {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 9px;
  padding: 10px 13px;
  font-family: var(--font-ui);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
input::placeholder, textarea::placeholder { color: var(--muted); }
textarea { resize: vertical; width: 100%; }
select option { background: #11141d; }

.primary-btn {
  background: var(--accent);
  border: none;
  color: #0a0e1c;
  font-family: var(--font-ui);
  font-weight: 600;
  padding: 10px 19px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 14px;
  transition: filter 0.15s, transform 0.12s;
}
.primary-btn:hover { filter: brightness(1.08); transform: translateY(-1px); }
.primary-btn.small { padding: 9px 14px; }

.todo-form { display: flex; flex-direction: column; gap: 11px; }
.todo-form > input[name="text"] { width: 100%; }
.todo-form-row { display: flex; gap: 10px; flex-wrap: wrap; }
.todo-form-row select, .todo-form-row input { flex: 1; min-width: 120px; }

.quick-add { display: flex; gap: 8px; margin-bottom: 13px; }
.quick-add input { flex: 1; }

.thought-form { display: flex; flex-direction: column; gap: 11px; margin-bottom: 22px; }
.thought-form-row { display: flex; gap: 10px; }
.thought-form-row input { flex: 1; }

.project-form { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
.project-form input[name="name"] { flex: 1; min-width: 200px; }
.project-form input[name="desc"] { flex: 2; min-width: 200px; }

/* ---------- search results / inline edit ---------- */
.search-section { margin-bottom: 28px; }
.search-h { font-family: var(--font-display); font-size: 15px; font-weight: 600; margin: 0 0 12px; }
.inline-edit { width: 100%; font-size: 14px; }
.todo-text[data-act="edit"], .thought-body[data-act="edit-thought"] { cursor: text; }
.todo-text[data-act="edit"]:hover { text-decoration: underline dotted var(--muted); }

/* ---------- thoughts ---------- */
.thought-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(244px, 1fr)); gap: 14px; }
.thought-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 15px;
  transition: border-color 0.15s, transform 0.14s, box-shadow 0.15s;
}
.thought-card:hover { border-color: var(--border-hot); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.thought-body { margin: 0 0 12px; font-size: 14px; line-height: 1.55; white-space: pre-wrap; }
.thought-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.thought-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.card-del { position: absolute; top: 9px; right: 9px; opacity: 0; transition: 0.15s; }
.thought-card:hover .card-del { opacity: 1; }

/* ---------- projects ---------- */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(244px, 1fr)); gap: 14px; }
.project-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 17px;
  cursor: pointer;
  transition: transform 0.14s, border-color 0.15s, box-shadow 0.15s;
}
.project-card:hover { transform: translateY(-2px); border-color: var(--border-hot); box-shadow: var(--shadow-sm); }
.project-card-head { display: flex; align-items: center; justify-content: space-between; }
.project-card-head h3 { margin: 0; font-family: var(--font-display); font-size: 16px; font-weight: 600; }
.progress { height: 6px; background: var(--bg-soft); border-radius: 999px; margin: 13px 0 8px; overflow: hidden; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 0.4s; }
.project-meta { color: var(--muted); }

/* ---------- misc ---------- */
.empty {
  padding: 30px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.seg { display: inline-flex; background: var(--panel); border: 1px solid var(--border); border-radius: 9px; padding: 3px; }
.seg button {
  border: none; background: transparent; color: var(--muted);
  padding: 6px 15px; border-radius: 7px; cursor: pointer;
  font-size: 13px; font-weight: 500; transition: 0.15s;
}
.seg button.active { background: var(--accent-soft); color: #fff; }

/* ---------- mind map ---------- */
.map-toolbar { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.map-add-note { display: flex; gap: 8px; flex: 1; min-width: 240px; }
.map-add-note input { flex: 1; }
.map-add-existing select { min-width: 200px; max-width: 260px; }
.map-tools { display: flex; gap: 8px; margin-left: auto; }

.map-hint {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
  padding: 9px 13px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 9px;
}
.map-hint.active { color: var(--accent); border-color: var(--accent); }

.map-scroll {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  background-color: #0a0c13;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px;
  height: calc(100vh - 240px);
  min-height: 420px;
}
.map-canvas { position: relative; }
.map-canvas.linking { cursor: crosshair; }
.map-edges { position: absolute; top: 0; left: 0; pointer-events: none; }
.map-edge { fill: none; stroke: var(--accent); stroke-width: 2; opacity: 0.55; }
.map-edge-dot {
  fill: var(--panel-2); stroke: var(--accent); stroke-width: 1.5;
  pointer-events: all; cursor: pointer; opacity: 0; transition: opacity 0.15s;
}
.map-canvas:hover .map-edge-dot { opacity: 0.9; }
.map-edge-dot:hover { fill: var(--danger); stroke: var(--danger); }

.map-node {
  position: absolute;
  width: 168px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 11px;
  padding: 11px 13px;
  cursor: grab;
  user-select: none;
  box-shadow: var(--shadow-sm);
  touch-action: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.map-node:hover { box-shadow: var(--shadow); border-color: var(--border-hot); }
.map-node.dragging { cursor: grabbing; z-index: 20; box-shadow: var(--shadow); }
.map-node.done .map-node-label { text-decoration: line-through; opacity: 0.55; }
.map-node.link-src { outline: 2px solid var(--accent); }
.map-node-kind {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 5px;
}
.map-node-label { display: block; font-size: 13px; line-height: 1.4; word-break: break-word; }
.kind-thought { border-left-color: var(--accent-2); }
.kind-todo { border-left-color: var(--green); }
.kind-project { border-left-color: #c5b3ff; }
.kind-note { border-left-color: var(--amber); }

.map-link-handle, .map-node-del {
  position: absolute;
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  cursor: pointer;
  font-size: 12px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.15s;
}
.map-link-handle { right: -10px; top: 50%; transform: translateY(-50%); }
.map-node-del { right: -10px; top: -10px; }
.map-node:hover .map-link-handle, .map-node:hover .map-node-del { opacity: 1; }
.map-link-handle:hover { color: var(--accent); border-color: var(--accent); }
.map-node-del:hover { color: var(--danger); border-color: var(--danger); }

/* ---------- account / sync ---------- */
/* Hidden until the sync module (js/supabase-sync.js) reveals it when configured. */
.account-area { display: none; margin-top: 8px; }
.account-signin {
  width: 100%;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: 0.15s;
}
.account-signin:hover { border-color: var(--accent); }
.account-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel);
}
.sync-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex-shrink: 0; }
.account-email { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.account-link { background: none; border: none; color: var(--accent); font-size: 12px; cursor: pointer; flex-shrink: 0; }
.account-link:hover { text-decoration: underline; }

/* ---------- modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(5, 7, 12, 0.7);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.modal {
  width: 100%; max-width: 400px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.modal h3 { margin: 0 0 8px; font-family: var(--font-display); font-size: 18px; }
.modal p { margin: 0 0 16px; line-height: 1.5; }
.modal form { display: flex; flex-direction: column; gap: 14px; }
.modal input { width: 100%; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; }
.login-msg { margin: 14px 0 0; }

/* ---------- scrollbars ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); border-radius: 999px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.2); background-clip: content-box; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; align-items: center; overflow-x: auto; padding: 10px 12px; }
  .brand { padding: 0 12px 0 4px; }
  .brand-text, .search-box { display: none; }
  .nav { flex-direction: row; flex: 1; }
  .nav-badge { display: none; }
  .sidebar-footer { border: none; padding: 0; }
  .main { padding: 20px 16px 60px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .dash-cols { grid-template-columns: 1fr; }
}