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

/* ── THEME VARIABLES ── */
[data-theme="dark"] {
  --bg: #0d0f14;
  --surface: #161a22;
  --surface2: #1e2330;
  --border: #2a3040;
  --text: #e8eaf0;
  --text-muted: #7a8299;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --card-hover: 0 8px 24px rgba(0,0,0,0.3);
}
[data-theme="light"] {
  --bg: #f0f2f8;
  --surface: #ffffff;
  --surface2: #f4f6fb;
  --border: #dde1ee;
  --text: #1a1d2e;
  --text-muted: #6b7280;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --card-hover: 0 8px 24px rgba(0,0,0,0.12);
}

:root {
  --accent: #6c63ff;
  --accent2: #a78bfa;
  --tasks: #34d399;
  --goals: #60a5fa;
  --budget: #fbbf24;
  --habits: #f472b6;
  --danger: #f87171;
  --radius: 12px;
  --radius-sm: 8px;
}

/* ── BACKGROUNDS ── */
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); font-size: 15px; min-height: 100vh; transition: background 0.3s, color 0.3s; }
body.bg-gradient1 { background: linear-gradient(135deg, #0d0f14 0%, #1a1040 50%, #0d1a2e 100%) !important; }
body.bg-gradient2 { background: linear-gradient(135deg, #1a0a00 0%, #2d1010 50%, #1a1500 100%) !important; }
body.bg-gradient3 { background: linear-gradient(135deg, #001a2e 0%, #002d40 50%, #001020 100%) !important; }
body.bg-gradient4 { background: linear-gradient(135deg, #001a10 0%, #0a2d1a 50%, #001208 100%) !important; }
body.bg-gradient5 { background: linear-gradient(135deg, #1a0020 0%, #2d0030 50%, #100020 100%) !important; }
[data-theme="light"] body.bg-gradient1 { background: linear-gradient(135deg, #ede9ff 0%, #ddd6fe 100%) !important; }
[data-theme="light"] body.bg-gradient2 { background: linear-gradient(135deg, #fff1ee 0%, #fecaca 100%) !important; }
[data-theme="light"] body.bg-gradient3 { background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%) !important; }
[data-theme="light"] body.bg-gradient4 { background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%) !important; }
[data-theme="light"] body.bg-gradient5 { background: linear-gradient(135deg, #fce7f3 0%, #fbcfe8 100%) !important; }

html, body { height: 100%; }
.screen { display: none; }
.screen.active { display: flex; }

/* ── LOGIN ── */
#login-screen {
  min-height: 100vh; align-items: center; justify-content: center;
  background: var(--bg);
  background-image: radial-gradient(ellipse at 30% 20%, rgba(108,99,255,0.12) 0%, transparent 60%),
                    radial-gradient(ellipse at 80% 80%, rgba(167,139,250,0.08) 0%, transparent 50%);
}
.login-card { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 48px 40px; width: 340px; box-shadow: var(--shadow); text-align: center; }
.login-logo { margin-bottom: 36px; }
.logo-icon { font-size: 2.2rem; color: var(--accent2); display: block; margin-bottom: 12px; }
.logo-icon.small { font-size: 1.2rem; margin-bottom: 0; display: inline; }
.login-logo h1 { font-family: 'Space Grotesk', sans-serif; font-size: 1.6rem; font-weight: 700; }
.login-logo p { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; letter-spacing: 0.05em; }
.pin-container label { display: block; color: var(--text-muted); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 16px; }
.pin-display { display: flex; gap: 12px; justify-content: center; margin-bottom: 28px; }
.pin-dot { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--border); transition: all 0.2s; }
.pin-dot.filled { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 10px rgba(108,99,255,0.5); }
.pin-pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.pin-btn { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 1.2rem; font-family: 'Space Grotesk', sans-serif; font-weight: 500; padding: 16px; cursor: pointer; transition: all 0.15s; }
.pin-btn:hover { background: var(--border); border-color: var(--accent); }
.pin-btn:active { transform: scale(0.94); }
.pin-clear { color: var(--text-muted); font-size: 1rem; }
.pin-go { background: var(--accent); border-color: var(--accent); color: white; font-size: 1.3rem; }
.pin-go:hover { background: var(--accent2); border-color: var(--accent2); }
.pin-error { color: var(--danger); font-size: 0.82rem; margin-top: 14px; min-height: 20px; }

/* ── APP LAYOUT ── */
#app-screen { height: 100vh; overflow: hidden; }
.sidebar { width: 220px; min-width: 220px; background: var(--surface); border-right: 1px solid var(--border); display: flex; flex-direction: column; padding: 24px 0; transition: background 0.3s; }
.sidebar-header { display: flex; align-items: center; gap: 10px; padding: 0 20px 24px; border-bottom: 1px solid var(--border); }
.sidebar-title { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 0.95rem; }
.sidebar-nav { flex: 1; padding: 16px 10px; display: flex; flex-direction: column; gap: 4px; }
.nav-item { display: flex; align-items: center; gap: 12px; background: none; border: none; color: var(--text-muted); font-family: 'Inter', sans-serif; font-size: 0.9rem; padding: 10px 12px; border-radius: var(--radius-sm); cursor: pointer; text-align: left; width: 100%; transition: all 0.15s; }
.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: rgba(108,99,255,0.15); color: var(--accent2); font-weight: 500; }
.nav-icon { font-size: 1rem; width: 18px; text-align: center; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; font-size: 0.82rem; color: var(--text-muted); }
.logout-btn { background: none; border: none; color: var(--text-muted); font-size: 0.8rem; cursor: pointer; padding: 4px 8px; border-radius: 4px; transition: all 0.15s; }
.logout-btn:hover { color: var(--danger); }

.main-content { flex: 1; overflow-y: auto; padding: 32px 36px; }
.section { display: none; }
.section.active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.section-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 20px; gap: 16px; }
.section-header h2 { font-family: 'Space Grotesk', sans-serif; font-size: 1.7rem; font-weight: 700; }
.section-sub { color: var(--text-muted); font-size: 0.88rem; margin-top: 4px; }
.section-desc { color: var(--text-muted); font-size: 0.85rem; margin-top: 5px; max-width: 480px; line-height: 1.5; }

/* ── QUOTE CARD ── */
.quote-card { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 24px; display: flex; align-items: center; gap: 14px; }
.quote-icon { font-size: 1.5rem; color: var(--accent2); opacity: 0.7; flex-shrink: 0; }
.quote-text { flex: 1; font-size: 0.9rem; color: var(--text-muted); font-style: italic; line-height: 1.5; }
.quote-refresh { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.1rem; padding: 4px 8px; border-radius: 4px; transition: all 0.2s; flex-shrink: 0; }
.quote-refresh:hover { color: var(--accent2); transform: rotate(180deg); }

/* ── HOME ── */
.home-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; }
.home-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; display: flex; align-items: center; gap: 16px; cursor: pointer; transition: all 0.2s; }
.home-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--card-hover); }
.home-card-icon { width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700; flex-shrink: 0; }
.tasks-color { background: rgba(52,211,153,0.15); color: var(--tasks); }
.goals-color { background: rgba(96,165,250,0.15); color: var(--goals); }
.budget-color { background: rgba(251,191,36,0.15); color: var(--budget); }
.habits-color { background: rgba(244,114,182,0.15); color: var(--habits); }
.home-card-num { font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: 700; display: block; }
.home-card-label { font-size: 0.78rem; color: var(--text-muted); }
.today-focus { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.today-focus h3 { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; }

/* ── FILTER ── */
.filter-bar { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.filter-btn { background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); padding: 7px 16px; border-radius: 20px; font-size: 0.82rem; cursor: pointer; transition: all 0.15s; }
.filter-btn:hover { color: var(--text); border-color: var(--accent); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: white; }

/* ── BUTTONS ── */
.add-btn { background: var(--accent); border: none; color: white; padding: 9px 18px; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all 0.15s; font-family: 'Inter', sans-serif; white-space: nowrap; }
.add-btn:hover { background: var(--accent2); transform: translateY(-1px); }
.secondary-btn { background: var(--surface) !important; border: 1px solid var(--border) !important; color: var(--text) !important; }
.secondary-btn:hover { border-color: var(--accent) !important; background: var(--surface2) !important; transform: translateY(-1px); }

/* ── CARDS ── */
.card-list { display: flex; flex-direction: column; gap: 10px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; display: flex; align-items: flex-start; gap: 14px; transition: all 0.2s; }
.card:hover { box-shadow: var(--card-hover); }
.card-main { flex: 1; }
.card-title { font-weight: 500; font-size: 0.95rem; margin-bottom: 4px; }
.card-meta { font-size: 0.78rem; color: var(--text-muted); display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 0.72rem; font-weight: 600; }
.badge-red    { background: rgba(248,113,113,0.15); color: var(--danger); }
.badge-yellow { background: rgba(251,191,36,0.15); color: var(--budget); }
.badge-green  { background: rgba(52,211,153,0.15); color: var(--tasks); }
.badge-blue   { background: rgba(96,165,250,0.15); color: var(--goals); }
.badge-purple { background: rgba(108,99,255,0.15); color: var(--accent2); }
.badge-gray   { background: rgba(122,130,153,0.15); color: var(--text-muted); }
.card-actions { display: flex; gap: 6px; flex-shrink: 0; }
.icon-btn { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 5px 7px; border-radius: 4px; font-size: 0.85rem; transition: all 0.15s; }
.icon-btn:hover { color: var(--danger); background: rgba(248,113,113,0.1); }
.icon-btn.star:hover { color: var(--budget); background: rgba(251,191,36,0.1); }
.icon-btn.progress-btn:hover { color: var(--goals); background: rgba(96,165,250,0.1); }
.checkbox-btn { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--border); background: none; cursor: pointer; flex-shrink: 0; margin-top: 2px; transition: all 0.2s; display: flex; align-items: center; justify-content: center; }
.checkbox-btn.done { background: var(--tasks); border-color: var(--tasks); }
.checkbox-btn.done::after { content: '✓'; color: white; font-size: 0.7rem; }

/* ── PROGRESS BAR ── */
.progress-wrap { margin-top: 8px; }
.progress-bar-bg { background: var(--surface2); border-radius: 20px; height: 6px; overflow: hidden; margin-top: 4px; }
.progress-bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 20px; transition: width 0.4s ease; }
.progress-label { font-size: 0.75rem; color: var(--text-muted); display: flex; justify-content: space-between; }

/* ── BUDGET ── */
.budget-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 24px; }
.budget-stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; text-align: center; }
.budget-stat-label { display: block; font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
.budget-stat-num { font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: 700; }
.income .budget-stat-num { color: var(--tasks); }
.expenses .budget-stat-num { color: var(--danger); }
.balance .budget-stat-num { color: var(--accent2); }

/* ── HABITS ── */
.habit-week-header { display: flex; align-items: center; margin-bottom: 8px; padding: 0 20px; }
.habit-name-col { flex: 1; font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.habit-days { display: flex; gap: 6px; }
.habit-day-label { width: 36px; text-align: center; font-size: 0.72rem; color: var(--text-muted); }
.habit-row { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 20px; display: flex; align-items: center; margin-bottom: 8px; transition: all 0.2s; }
.habit-row:hover { box-shadow: var(--card-hover); }
.habit-row-name { flex: 1; font-size: 0.92rem; font-weight: 500; }
.habit-row-cat { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.habit-checks { display: flex; gap: 6px; }
.habit-check { width: 36px; height: 36px; border-radius: 8px; border: 2px solid var(--border); background: none; cursor: pointer; font-size: 0.85rem; transition: all 0.15s; display: flex; align-items: center; justify-content: center; color: transparent; }
.habit-check:hover { border-color: var(--habits); }
.habit-check.checked { background: rgba(244,114,182,0.2); border-color: var(--habits); color: var(--habits); }
.habit-del { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 6px; margin-left: 10px; border-radius: 4px; font-size: 0.82rem; transition: all 0.15s; }
.habit-del:hover { color: var(--danger); }

/* ── JOURNAL ── */
.journal-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 10px; transition: all 0.2s; }
.journal-card:hover { box-shadow: var(--card-hover); }
.journal-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; }
.journal-card-title { font-weight: 600; font-size: 0.95rem; }
.journal-card-meta { font-size: 0.75rem; color: var(--text-muted); margin-top: 3px; }
.journal-card-body { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }

/* ── SETTINGS ── */
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.settings-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.settings-card.full-width { grid-column: 1 / -1; }
.settings-card-title { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.settings-card-desc { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 16px; line-height: 1.5; }
.settings-row { display: flex; gap: 10px; align-items: center; }
.settings-row input { flex: 1; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); padding: 9px 14px; font-family: 'Inter', sans-serif; font-size: 0.88rem; outline: none; transition: border-color 0.15s; }
.settings-row input:focus { border-color: var(--accent); }

.theme-toggle-row { display: flex; gap: 10px; }
.theme-btn { flex: 1; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-muted); padding: 10px; font-size: 0.88rem; cursor: pointer; transition: all 0.15s; }
.theme-btn.active { background: rgba(108,99,255,0.15); border-color: var(--accent); color: var(--accent2); font-weight: 600; }

.bg-options { display: flex; gap: 12px; flex-wrap: wrap; }
.bg-option { background: none; border: 2px solid var(--border); border-radius: 10px; padding: 8px; cursor: pointer; transition: all 0.2s; text-align: center; color: var(--text-muted); font-size: 0.78rem; }
.bg-option.active { border-color: var(--accent); color: var(--accent2); }
.bg-option:hover { border-color: var(--accent); }
.bg-preview { width: 64px; height: 40px; border-radius: 6px; margin-bottom: 6px; }
.bg-preview-default { background: #0d0f14; }
.bg-preview-gradient1 { background: linear-gradient(135deg, #0d0f14, #1a1040); }
.bg-preview-gradient2 { background: linear-gradient(135deg, #1a0a00, #2d1010); }
.bg-preview-gradient3 { background: linear-gradient(135deg, #001a2e, #002d40); }
.bg-preview-gradient4 { background: linear-gradient(135deg, #001a10, #0a2d1a); }
.bg-preview-gradient5 { background: linear-gradient(135deg, #1a0020, #2d0030); }

.accent-options { display: flex; gap: 10px; flex-wrap: wrap; }
.accent-dot { width: 36px; height: 36px; border-radius: 50%; border: 3px solid transparent; cursor: pointer; transition: all 0.2s; }
.accent-dot:hover { transform: scale(1.15); border-color: white; }

/* ── MODALS ── */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); z-index: 100; }
.modal-overlay.open { display: block; }
.modal { display: none; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); background: var(--surface); border: 1px solid var(--border); border-radius: 16px; width: 440px; max-width: 95vw; z-index: 101; box-shadow: 0 20px 60px rgba(0,0,0,0.5); max-height: 90vh; overflow-y: auto; }
.modal.open { display: flex; flex-direction: column; animation: modalIn 0.2s ease; }
@keyframes modalIn { from { opacity: 0; transform: translate(-50%, -48%); } to { opacity: 1; transform: translate(-50%, -50%); } }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600; }
.modal-header button { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1rem; padding: 4px; border-radius: 4px; transition: color 0.15s; }
.modal-header button:hover { color: var(--text); }
.modal-body { padding: 20px 24px; display: flex; flex-direction: column; gap: 12px; }
.modal-body label { font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; display: block; margin-bottom: 4px; }
.modal-body input, .modal-body select, .modal-body textarea { width: 100%; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); padding: 10px 14px; font-family: 'Inter', sans-serif; font-size: 0.88rem; transition: border-color 0.15s; outline: none; }
.modal-body input:focus, .modal-body select:focus, .modal-body textarea:focus { border-color: var(--accent); }
.modal-body textarea { min-height: 100px; resize: vertical; }
.modal-body select option { background: var(--surface2); }
.modal-hint { font-size: 0.8rem; color: var(--text-muted); }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; padding: 16px 24px; border-top: 1px solid var(--border); }
.btn-primary { background: var(--accent); border: none; color: white; padding: 9px 20px; border-radius: var(--radius-sm); font-size: 0.88rem; font-weight: 600; cursor: pointer; transition: all 0.15s; }
.btn-primary:hover { background: var(--accent2); }
.btn-secondary { background: var(--surface2); border: 1px solid var(--border); color: var(--text-muted); padding: 9px 20px; border-radius: var(--radius-sm); font-size: 0.88rem; cursor: pointer; transition: all 0.15s; }
.btn-secondary:hover { color: var(--text); }

/* ── TOAST ── */
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--surface2); border: 1px solid var(--border); color: var(--text); padding: 12px 20px; border-radius: var(--radius-sm); font-size: 0.85rem; z-index: 200; opacity: 0; transition: opacity 0.3s; pointer-events: none; box-shadow: var(--shadow); }
.toast.show { opacity: 1; }

.empty-state { color: var(--text-muted); font-size: 0.85rem; padding: 32px 0; text-align: center; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .sidebar { width: 60px; min-width: 60px; }
  .sidebar-title, .nav-item span:last-child, .sidebar-footer span, .logout-btn { display: none; }
  .sidebar-header { justify-content: center; padding: 0 0 24px; }
  .nav-item { justify-content: center; padding: 10px; }
  .home-grid { grid-template-columns: repeat(2, 1fr); }
  .settings-grid { grid-template-columns: 1fr; }
  .main-content { padding: 24px 16px; }
}
@media (max-width: 500px) {
  .home-grid { grid-template-columns: 1fr 1fr; }
  .budget-summary { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; }
}