/* ═══════════════════════════════════════════════
   ThumbAI — Base CSS (Light Purple / Taskify Theme)
   ═══════════════════════════════════════════════ */

:root {
  /* ── Core palette ── */
  --primary:       #7c3aed;
  --primary-light: #a78bfa;
  --primary-dark:  #5b21b6;
  --primary-bg:    #f3f0ff;
  --primary-bg2:   #ede9fe;

  /* ── Surfaces ── */
  --bg:         #f5f3ff;
  --bg2:        #ffffff;
  --bg3:        #faf8ff;
  --surface:    #ffffff;
  --surface2:   #f9f7ff;

  /* ── Borders ── */
  --border:     #e5e0f5;
  --border2:    #d4cce8;

  /* ── Accents ── */
  --green:      #10b981;
  --green-light:#d1fae5;
  --amber:      #f59e0b;
  --red:        #ef4444;
  --blue:       #2563eb;

  /* ── Text ── */
  --text:       #1e1b3a;
  --text2:      #6b6394;
  --text3:      #a39ec4;

  /* ── Layout ── */
  --sidebar-w:  250px;
  --topbar-h:   60px;
  --radius:     14px;
  --radius-sm:  9px;

  /* ── Shadows ── */
  --shadow-sm:  0 1px 3px rgba(124,58,237,0.06);
  --shadow-md:  0 4px 12px rgba(124,58,237,0.08);
  --shadow-lg:  0 8px 30px rgba(124,58,237,0.12);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ═══════════════════════════════════════════════
   SHELL — sidebar + main area
   ═══════════════════════════════════════════════ */
.shell {
  position: relative;
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ──────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform 0.28s cubic-bezier(.4,0,.2,1);
  overflow-y: auto;
  overflow-x: hidden;
  box-shadow: 2px 0 12px rgba(124,58,237,0.04);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.4rem 1.2rem 1.1rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 1.1rem; color: #fff;
  box-shadow: 0 2px 12px rgba(124,58,237,0.3);
  flex-shrink: 0;
}

.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name {
  font-size: 1.05rem; font-weight: 800;
  color: var(--primary-dark);
}
.logo-tag {
  font-size: 0.62rem; font-weight: 600;
  color: var(--text3); text-transform: uppercase; letter-spacing: 1px;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-label {
  font-size: 0.62rem; font-weight: 700;
  color: var(--text3); text-transform: uppercase;
  letter-spacing: 1.2px; padding: 0.5rem 0.6rem 0.3rem;
}

.nav-divider {
  height: 1px; background: var(--border);
  margin: 0.6rem 0;
}

.nav-item {
  display: flex; align-items: center;
  gap: 0.7rem;
  padding: 0.6rem 0.75rem;
  border-radius: 10px;
  color: var(--text2);
  text-decoration: none;
  font-size: 0.85rem; font-weight: 500;
  transition: background 0.18s, color 0.18s;
  position: relative;
  cursor: pointer;
}

.nav-item:hover:not(.disabled) {
  background: var(--primary-bg);
  color: var(--primary);
}

.nav-item.active {
  background: var(--primary-bg2);
  color: var(--primary);
  border: 1px solid rgba(124,58,237,0.2);
  font-weight: 600;
}

.nav-item.disabled {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

.nav-item-icon { font-size: 1rem; flex-shrink: 0; width: 20px; text-align: center; }
.nav-item-label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.nav-item-badge {
  font-size: 0.6rem; font-weight: 700;
  padding: 1px 6px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: 0.4px;
  flex-shrink: 0;
}

.new-badge {
  background: var(--primary-bg2);
  border: 1px solid rgba(124,58,237,0.3);
  color: var(--primary);
}

.soon-badge {
  background: #f3f1f8;
  border: 1px solid var(--border);
  color: var(--text3);
}

.sidebar-footer {
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.ai-status {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.6rem 0.8rem;
  background: var(--green-light);
  border: 1px solid rgba(16,185,129,0.25);
  border-radius: 10px;
}

.ai-status-text { display: flex; flex-direction: column; line-height: 1.3; }
.ai-model { font-size: 0.78rem; font-weight: 600; color: var(--text); }
.ai-state { font-size: 0.67rem; color: #059669; }

/* ── MAIN AREA ───────────────────────────────── */
.main-area {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── TOP BAR ────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 1rem;
  padding: 0 1.8rem;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-toggle {
  display: none;
  flex-direction: column; gap: 4px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.sidebar-toggle span {
  display: block; width: 20px; height: 2px;
  background: var(--text2); border-radius: 2px;
  transition: background 0.2s;
}
.sidebar-toggle:hover span { background: var(--text); }

.topbar-breadcrumb {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.85rem; flex: 1;
}
.breadcrumb-root { color: var(--text3); font-weight: 500; }
.breadcrumb-sep  { color: var(--text3); }
.breadcrumb-current { color: var(--text); font-weight: 600; }

.topbar-right {
  display: flex; align-items: center; gap: 0.8rem;
}

/* ── Theme Toggle ──────────────────────────── */
.theme-toggle {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface2);
  cursor: pointer;
  display: grid; place-items: center;
  font-size: 1rem;
  transition: background 0.2s, border-color 0.2s;
  flex-shrink: 0;
  padding: 0;
}
.theme-toggle:hover {
  background: var(--primary-bg);
  border-color: var(--primary-light);
}
.theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: inline; }

.topbar-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: grid; place-items: center;
  font-size: 0.8rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(124,58,237,0.2);
}

/* ── PAGE CONTENT ───────────────────────────── */
.page-content {
  flex: 1;
  padding: 1.8rem 2rem 3rem;
  max-width: 1300px;
  width: 100%;
}

/* ── FOOTER ─────────────────────────────────── */
.site-footer {
  padding: 1rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-text {
  font-size: 0.75rem;
  color: var(--text3);
  font-weight: 500;
}

/* ── Status dot ──────────────────────────────── */
.status-dot {
  width: 7px; height: 7px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse-dot { 0%,100%{opacity:1;} 50%{opacity:0.4;} }

/* ── Stat chips ──────────────────────────────── */
.stat-chip {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.76rem; color: var(--text2);
  font-weight: 500; white-space: nowrap;
  box-shadow: var(--shadow-sm);
}

/* ── Spinner ─────────────────────────────────── */
.spinner {
  display: inline-block; width: 13px; height: 13px;
  border: 2px solid rgba(124,58,237,0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  vertical-align: middle; margin-right: 0.35rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-area { margin-left: 0; }
  .sidebar-toggle { display: flex; }
  .page-content { padding: 1.2rem 1rem 3rem; }
}

/* ═══════════════════════════════════════════════
   DARK MODE
   ═══════════════════════════════════════════════ */
[data-theme="dark"] {
  --bg:         #0c0a1a;
  --bg2:        #110f22;
  --bg3:        #16132e;
  --surface:    rgba(255,255,255,0.04);
  --surface2:   rgba(255,255,255,0.06);

  --border:     rgba(255,255,255,0.08);
  --border2:    rgba(255,255,255,0.14);

  --primary-bg:  rgba(124,58,237,0.12);
  --primary-bg2: rgba(124,58,237,0.18);

  --green-light: rgba(16,185,129,0.1);

  --text:       #f0eeff;
  --text2:      #8b87b0;
  --text3:      #4a4670;

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.2);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg:  0 8px 30px rgba(0,0,0,0.4);
}

[data-theme="dark"] .sidebar {
  background: rgba(11,9,26,0.95);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .topbar {
  background: rgba(11,9,26,0.88);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .logo-name {
  color: var(--primary-light);
}

[data-theme="dark"] .ai-status {
  background: rgba(16,185,129,0.08);
}

[data-theme="dark"] .ai-state {
  color: #6ee7b7;
}