:root{
  --bg: #0b0b12;
  --bg-elev: #121220;
  --bg-card: #15151f;
  --bg-card-hover: #191927;
  --border: #23232f;
  --text: #f2f2f7;
  --text-dim: #9a9aab;
  --text-faint: #64646f;
  --accent: #8b6dff;
  --accent-2: #6c8bff;
  --accent-soft: rgba(139,109,255,0.14);
  --green: #35d68f;
  --amber: #ffb84d;
  --red: #ff6b6b;
  --pink: #ff6bd8;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --sidebar-w: 240px;
}

[data-theme="light"]{
  --bg: #f4f4f8;
  --bg-elev: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0eefc;
  --border: #e6e6ef;
  --text: #17171f;
  --text-dim: #63636f;
  --text-faint: #8d8d99;
  --accent-soft: rgba(139,109,255,0.12);
  --shadow: 0 10px 30px rgba(20,20,40,0.08);
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }
::selection{ background: var(--accent); color:#fff; }

.app-shell{
  display:grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height:100vh;
}

/* ---------- Sidebar ---------- */
.sidebar{
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  padding: 20px 14px;
  display:flex;
  flex-direction:column;
  gap: 22px;
  position: sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
}
.brand{ display:flex; align-items:center; gap:10px; padding: 0 6px; }
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display:flex;align-items:center;justify-content:center;
  font-size:15px; color:#fff; flex-shrink:0;
}
.brand-name{ font-weight:700; font-size:16.5px; letter-spacing:-0.02em; }
.sidebar-close{ display:none; margin-left:auto; background:none; border:none; color:var(--text-dim); font-size:22px; cursor:pointer; }

.nav{ display:flex; flex-direction:column; gap:2px; }
.nav-item{
  display:flex; align-items:center; gap:11px;
  padding:9px 12px; border-radius: var(--radius-sm);
  color: var(--text-dim); font-size:14px; font-weight:500;
  transition: background .15s, color .15s;
}
.nav-ic{ width:18px; text-align:center; font-size:14px; opacity:.9; }
.nav-item:hover{ background: var(--bg-card-hover); color: var(--text); }
.nav-item.active{ background: var(--accent-soft); color: var(--accent); }

.pinned{ margin-top:4px; }
.pinned-title{ font-size:11px; text-transform:uppercase; letter-spacing:.08em; color:var(--text-faint); padding: 0 12px 8px; }
.pinned-list{ display:flex; flex-direction:column; gap:2px; }
.pinned-item{
  display:flex; align-items:center; gap:9px; padding:7px 12px; border-radius:var(--radius-sm);
  font-size:13.5px; color:var(--text-dim); cursor:default;
}
.pinned-dot{ width:6px;height:6px;border-radius:50%; flex-shrink:0; }

.upgrade-card{
  margin-top:auto;
  background: linear-gradient(160deg, var(--accent-soft), transparent);
  border:1px solid var(--border);
  border-radius: var(--radius-md);
  padding:14px;
}
.upgrade-title{ font-size:13px; font-weight:600; margin-bottom:4px; }
.upgrade-card p{ font-size:12px; color:var(--text-dim); margin:0; line-height:1.5; }

.sidebar-scrim{ display:none; }

/* ---------- Topbar ---------- */
.main{ min-width:0; display:flex; flex-direction:column; }
.topbar{
  display:flex; align-items:center; gap:16px;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  position: sticky; top:0; background: var(--bg); z-index: 20;
}
.menu-btn{ display:none; }
.icon-btn{
  background: var(--bg-card); border:1px solid var(--border); color:var(--text-dim);
  width:36px; height:36px; border-radius:10px; cursor:pointer; font-size:15px;
  display:flex; align-items:center; justify-content:center;
  transition: background .15s, color .15s;
}
.icon-btn:hover{ background:var(--bg-card-hover); color:var(--text); }

.search{
  flex:1; max-width:520px; display:flex; align-items:center; gap:8px;
  background: var(--bg-card); border:1px solid var(--border);
  border-radius: 10px; padding:8px 12px; color:var(--text-faint);
}
.search input{
  border:none; background:none; outline:none; color:var(--text); font-size:13.5px; flex:1;
}
.search input::placeholder{ color: var(--text-faint); }
.search kbd{
  font-size:11px; color:var(--text-faint); border:1px solid var(--border); border-radius:5px; padding:1px 6px;
}

.top-actions{ display:flex; align-items:center; gap:14px; margin-left:auto; }
.profile{ display:flex; align-items:center; gap:9px; }
.avatar{
  width:34px;height:34px;border-radius:50%;
  background: linear-gradient(135deg, var(--accent), var(--pink));
  display:flex;align-items:center;justify-content:center; font-weight:700; font-size:13px; color:#fff;
}
.profile-meta{ line-height:1.25; }
.profile-name{ font-size:13.5px; font-weight:600; }
.profile-plan{ font-size:11.5px; color: var(--accent); }

/* ---------- Content ---------- */
.content{ padding: 24px 28px 60px; }
.page-head{ margin-bottom:22px; }
.page-head h1{ margin:0 0 4px; font-size:22px; letter-spacing:-0.02em; }
.page-head p{ margin:0; color:var(--text-dim); font-size:13.5px; }

.grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:18px;
}
.col-2{ grid-column: span 2; }
.col-3{ grid-column: span 3; }
.col-4{ grid-column: span 4; }
.col-1{ grid-column: span 1; }

.card{
  background: var(--bg-card);
  border:1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; }
.card-head h3{ margin:0; font-size:14.5px; font-weight:650; display:flex; align-items:center; gap:8px; }
.card-head .view-all, .card-head .link-btn{
  font-size:12.5px; color:var(--text-dim); cursor:pointer; background:none; border:none; font-family:inherit;
}
.card-head .link-btn{ color: var(--accent); font-weight:600; }

/* buttons */
.btn{
  border:none; cursor:pointer; font-family:inherit; font-weight:600; font-size:13px;
  padding: 9px 14px; border-radius: 10px; transition: filter .15s, transform .1s;
}
.btn:active{ transform: scale(.97); }
.btn-primary{ background: linear-gradient(135deg, var(--accent), var(--accent-2)); color:#fff; }
.btn-primary:hover{ filter:brightness(1.08); }
.btn-ghost{ background: var(--bg-card-hover); color: var(--text); border:1px solid var(--border); }
.btn-sm{ padding:6px 10px; font-size:12px; }
.btn-danger{ background: rgba(255,107,107,.15); color: var(--red); }

/* schedule list */
.sched-list{ display:flex; flex-direction:column; gap:2px; }
.sched-row{
  display:flex; align-items:center; gap:10px; padding:8px 4px; border-radius:8px; font-size:13px;
  border-bottom: 1px solid var(--border);
}
.sched-row:last-child{ border-bottom:none; }
.sched-time{ width:74px; color:var(--text-dim); font-size:12px; flex-shrink:0; }
.sched-title{ flex:1; }
.dot{ width:7px;height:7px;border-radius:50%; flex-shrink:0; }

/* mini calendar */
.mini-cal{ }
.mini-cal-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; font-size:13px; font-weight:600; }
.mini-cal-nav{ display:flex; gap:4px; }
.mini-cal-nav button{ background:none; border:none; color:var(--text-dim); cursor:pointer; font-size:14px; padding:2px 6px; }
.mini-cal-grid{ display:grid; grid-template-columns: repeat(7,1fr); gap:4px; text-align:center; }
.mini-cal-grid .dow{ font-size:10.5px; color:var(--text-faint); padding-bottom:4px; }
.mini-cal-grid .day{
  font-size:12px; padding:6px 0; border-radius:8px; color:var(--text-dim); cursor:pointer; position:relative;
}
.mini-cal-grid .day.muted{ color: var(--text-faint); opacity:.4; }
.mini-cal-grid .day:hover{ background: var(--bg-card-hover); }
.mini-cal-grid .day.today{ background: var(--accent); color:#fff; font-weight:700; }
.mini-cal-grid .day .ind{ position:absolute; bottom:2px; left:50%; transform:translateX(-50%); width:4px;height:4px;border-radius:50%; background:var(--accent); }

/* AI assistant card */
.ai-orb-wrap{ display:flex; flex-direction:column; align-items:center; text-align:center; padding: 6px 0 4px; }
.ai-orb{
  width:74px;height:74px;border-radius:50%;
  background: radial-gradient(circle at 35% 30%, #b9a4ff, var(--accent) 55%, #4b34a8 100%);
  box-shadow: 0 0 0 8px var(--accent-soft), 0 0 40px rgba(139,109,255,.45);
  margin-bottom:12px; position:relative;
}
.ai-orb::after{
  content:""; position:absolute; width:10px;height:10px; border-radius:50%; background:#0b0b12;
  top:50%; left:50%; transform:translate(-50%,-50%);
}
.ai-orb-wrap h4{ margin:0 0 2px; font-size:14.5px; }
.ai-orb-wrap p{ margin:0; font-size:12px; color:var(--text-dim); }

.ai-rec{
  margin-top:14px; background: var(--accent-soft); border:1px solid rgba(139,109,255,.25);
  border-radius: var(--radius-md); padding:12px;
}
.ai-rec-title{ display:flex; align-items:center; gap:6px; font-size:12.5px; font-weight:650; margin-bottom:6px; color: var(--accent); }
.ai-rec p{ margin:0 0 10px; font-size:12.5px; color: var(--text-dim); line-height:1.55; }

/* Notes */
.note-item{ padding:10px 4px; border-bottom:1px solid var(--border); }
.note-item:last-child{ border-bottom:none; }
.note-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:4px; }
.note-title{ font-size:13.5px; font-weight:600; }
.note-time{ font-size:11px; color: var(--text-faint); flex-shrink:0; }
.note-body{ font-size:12.5px; color:var(--text-dim); line-height:1.5; overflow:hidden; text-overflow:ellipsis; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; }

/* Goals */
.goal-row{ display:flex; align-items:center; gap:12px; padding:10px 2px; }
.goal-ic{ width:34px;height:34px;border-radius:10px; display:flex;align-items:center;justify-content:center; font-size:15px; flex-shrink:0; }
.goal-body{ flex:1; min-width:0; }
.goal-top{ display:flex; justify-content:space-between; font-size:13px; margin-bottom:6px; }
.goal-top b{ font-weight:600; }
.bar{ height:6px; border-radius:4px; background: var(--border); overflow:hidden; }
.bar > i{ display:block; height:100%; border-radius:4px; }

/* Habit builder */
.habit-row{ display:flex; align-items:center; gap:12px; padding:11px 2px; }
.habit-ic{ width:34px;height:34px;border-radius:10px; display:flex;align-items:center;justify-content:center; font-size:15px; flex-shrink:0; }
.habit-body{ flex:1; min-width:0; }
.habit-top{ display:flex; justify-content:space-between; font-size:13px; margin-bottom:3px; }
.habit-streak{ font-size:11.5px; color:var(--text-faint); margin-bottom:6px; }

/* Expense donut */
.expense-total{ text-align:left; margin-bottom:14px; }
.expense-total .amt{ font-size:26px; font-weight:750; letter-spacing:-0.02em; }
.expense-total .delta{ font-size:12px; color: var(--red); margin-left:6px; }
.expense-flex{ display:flex; align-items:center; gap:20px; }
.donut-wrap{ position:relative; width:132px; height:132px; flex-shrink:0; }
.donut-center{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.donut-center b{ font-size:16px; }
.donut-center span{ font-size:10.5px; color:var(--text-faint); }
.legend{ flex:1; display:flex; flex-direction:column; gap:8px; }
.legend-row{ display:flex; align-items:center; gap:8px; font-size:12px; }
.legend-row .sw{ width:8px;height:8px;border-radius:50%; flex-shrink:0; }
.legend-row .lbl{ color:var(--text-dim); flex:1; }
.legend-row .val{ font-weight:600; }

/* Projects */
.proj-row{ display:flex; align-items:center; gap:12px; padding:11px 2px; }
.proj-ic{ width:34px;height:34px;border-radius:10px; display:flex;align-items:center;justify-content:center; font-size:14px; flex-shrink:0; }
.proj-body{ flex:1; min-width:0; }
.proj-top{ display:flex; justify-content:space-between; font-size:13px; margin-bottom:4px; }
.proj-sub{ font-size:11.5px; color:var(--text-faint); margin-bottom:6px; }

/* Quick actions */
.qa-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:10px; }
.qa-btn{
  background: var(--bg-elev); border:1px solid var(--border); border-radius: var(--radius-md);
  padding:12px; text-align:left; cursor:pointer; color:var(--text); display:flex; flex-direction:column; gap:8px;
}
.qa-btn:hover{ background: var(--bg-card-hover); }
.qa-ic{ width:30px;height:30px;border-radius:9px; display:flex;align-items:center;justify-content:center; font-size:14px; }
.qa-btn b{ font-size:12.5px; display:block; }
.qa-btn small{ color: var(--text-faint); font-size:11px; }

/* Forms (Tasks/Notes/etc pages) */
.inline-form{ display:flex; gap:8px; margin-bottom:16px; flex-wrap:wrap; }
.inline-form input[type=text], .inline-form input[type=number], .inline-form input[type=date], .inline-form select, .inline-form textarea{
  background: var(--bg-elev); border:1px solid var(--border); color:var(--text); border-radius:10px;
  padding:9px 12px; font-size:13px; font-family:inherit; outline:none;
}
.inline-form input:focus, .inline-form select:focus, .inline-form textarea:focus{ border-color: var(--accent); }
.inline-form input[type=text]{ flex:1; min-width:160px; }

.list{ display:flex; flex-direction:column; gap:8px; }
.list-item{
  display:flex; align-items:center; gap:12px; background: var(--bg-card); border:1px solid var(--border);
  border-radius: var(--radius-md); padding:12px 14px;
}
.list-item.done{ opacity:.55; }
.list-item.done .li-title{ text-decoration: line-through; }
.checkbox{
  width:19px;height:19px;border-radius:6px; border:1.5px solid var(--border); flex-shrink:0; cursor:pointer;
  display:flex; align-items:center; justify-content:center; font-size:12px; color:#fff; background:var(--bg-elev);
}
.checkbox.checked{ background: var(--accent); border-color: var(--accent); }
.li-body{ flex:1; min-width:0; }
.li-title{ font-size:13.5px; font-weight:560; }
.li-meta{ font-size:11.5px; color:var(--text-faint); margin-top:2px; display:flex; gap:8px; flex-wrap:wrap; }
.tag{ padding:2px 8px; border-radius:20px; font-size:10.5px; font-weight:650; }
.li-actions{ display:flex; gap:6px; flex-shrink:0; }
.li-actions button{ background:none; border:none; color:var(--text-faint); cursor:pointer; font-size:14px; padding:4px; }
.li-actions button:hover{ color: var(--red); }

.empty{ text-align:center; padding: 50px 20px; color: var(--text-faint); }
.empty .em-ic{ font-size:30px; margin-bottom:10px; }

/* Note cards page */
.notes-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:14px; }
.note-card{ background:var(--bg-card); border:1px solid var(--border); border-radius: var(--radius-md); padding:14px; display:flex; flex-direction:column; gap:8px; min-height:120px; }
.note-card textarea{ background:none; border:none; color:var(--text); font-size:13px; resize:none; outline:none; flex:1; font-family:inherit; line-height:1.5; }
.note-card-foot{ display:flex; justify-content:space-between; align-items:center; }

/* Calendar page */
.cal-page-grid{ display:grid; grid-template-columns: repeat(7,1fr); gap:1px; background: var(--border); border:1px solid var(--border); border-radius: var(--radius-md); overflow:hidden; }
.cal-page-grid .dow{ background: var(--bg-elev); text-align:center; padding:8px 0; font-size:11px; color:var(--text-faint); font-weight:600; }
.cal-cell{ background: var(--bg-card); min-height:96px; padding:8px; font-size:12px; }
.cal-cell .num{ color:var(--text-dim); font-size:12px; margin-bottom:6px; }
.cal-cell.today{ background: var(--accent-soft); }
.cal-cell.today .num{ color:var(--accent); font-weight:700; }
.cal-cell.muted{ opacity:.35; }
.cal-ev{ background: var(--accent-soft); color: var(--accent); border-radius:5px; padding:2px 6px; font-size:10.5px; margin-bottom:3px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* Assistant page */
.chat-wrap{ display:flex; flex-direction:column; height: calc(100vh - 180px); }
.chat-log{ flex:1; overflow-y:auto; display:flex; flex-direction:column; gap:14px; padding: 6px 2px 16px; }
.msg{ max-width:72%; padding:11px 14px; border-radius:14px; font-size:13.5px; line-height:1.55; }
.msg.ai{ background: var(--bg-card); border:1px solid var(--border); align-self:flex-start; border-bottom-left-radius:4px; }
.msg.user{ background: linear-gradient(135deg, var(--accent), var(--accent-2)); color:#fff; align-self:flex-end; border-bottom-right-radius:4px; }
.chat-input-row{ display:flex; gap:10px; border-top:1px solid var(--border); padding-top:14px; }
.chat-input-row input{ flex:1; background: var(--bg-card); border:1px solid var(--border); border-radius:12px; padding:12px 14px; color:var(--text); font-size:13.5px; outline:none; font-family:inherit; }
.chat-input-row input:focus{ border-color: var(--accent); }
.insight-chip{ display:inline-flex; align-items:center; gap:6px; background: var(--bg-card); border:1px solid var(--border); border-radius:20px; padding:6px 12px; font-size:12px; color:var(--text-dim); cursor:pointer; }
.insight-chip:hover{ border-color: var(--accent); color:var(--text); }
.chips-row{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:14px; }

/* toast */
.toast{
  position:fixed; bottom:24px; left:50%; transform:translateX(-50%) translateY(20px);
  background: var(--bg-elev); border:1px solid var(--border); color:var(--text);
  padding:10px 18px; border-radius:10px; font-size:13px; box-shadow: var(--shadow);
  opacity:0; pointer-events:none; transition: opacity .25s, transform .25s; z-index:100;
}
.toast.show{ opacity:1; transform:translateX(-50%) translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1180px){
  .grid{ grid-template-columns: repeat(2,1fr); }
  .col-2, .col-3, .col-4{ grid-column: span 2; }
  .notes-grid{ grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 860px){
  .app-shell{ grid-template-columns: 1fr; }
  .sidebar{
    position: fixed; z-index: 60; left:0; top:0; height:100vh; width: 78%; max-width:280px;
    transform: translateX(-100%); transition: transform .25s ease; box-shadow: var(--shadow);
  }
  .sidebar.open{ transform: translateX(0); }
  .sidebar-close{ display:block; }
  .sidebar-scrim{ display:none; position:fixed; inset:0; background: rgba(0,0,0,.5); z-index:55; }
  .sidebar-scrim.show{ display:block; }
  .menu-btn{ display:flex; }
  .search{ max-width:none; }
  .search kbd{ display:none; }
  .profile-meta{ display:none; }
  .grid{ grid-template-columns: 1fr; }
  .col-1,.col-2,.col-3,.col-4{ grid-column: span 1; }
  .content{ padding: 18px 14px 60px; }
  .topbar{ padding: 12px 14px; gap:10px; }
  .notes-grid{ grid-template-columns: 1fr; }
  .cal-cell{ min-height:64px; padding:5px; font-size:10.5px; }
  .msg{ max-width:88%; }
}