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

:root {
  --bg:       #04060f;
  --bg2:      #0a0f1e;
  --bg3:      #10182c;
  --border:   #0ff2;
  --accent:   #00f0ff;
  --accent2:  #ff2d78;
  --text:     #cfe8ff;
  --text-muted: #5f89a8;
  --success:  #00ff9f;
  --danger:   #ff2d78;
  --radius:   6px;
  --glow:     0 0 12px color-mix(in srgb, var(--accent) 33%, transparent),
              0 0 32px color-mix(in srgb, var(--accent) 13%, transparent);
  --shadow:   0 4px 40px rgba(0,0,0,0.6);
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;
  --font-body: 'Noto Sans KR', 'Malgun Gothic', sans-serif;
}

/* ── 테마: 라이트 ── */
html[data-theme="light"] {
  --bg:       #f4f6fb;
  --bg2:      #ffffff;
  --bg3:      #eef1f8;
  --accent:   #2563eb;
  --accent2:  #e11d48;
  --text:     #1a2233;
  --text-muted: #64748b;
  --success:  #059669;
  --danger:   #e11d48;
  --glow:     0 0 0 transparent;
  --shadow:   0 4px 24px rgba(15,23,42,0.08);
}

/* ── 테마: 모노 ── */
html[data-theme="mono"] {
  --bg:       #0a0a0a;
  --bg2:      #141414;
  --bg3:      #1c1c1c;
  --accent:   #e5e5e5;
  --accent2:  #9ca3af;
  --text:     #e5e5e5;
  --text-muted: #8a8a8a;
  --success:  #4ade80;
  --danger:   #f87171;
  --glow:     0 0 8px color-mix(in srgb, var(--accent) 25%, transparent);
  --shadow:   0 4px 40px rgba(0,0,0,0.7);
}

/* ── 테마: 포레스트 ── */
html[data-theme="forest"] {
  --bg:       #06120c;
  --bg2:      #0c1f15;
  --bg3:      #122b1c;
  --accent:   #34d399;
  --accent2:  #f59e0b;
  --text:     #d9f5e6;
  --text-muted: #6b9080;
  --success:  #34d399;
  --danger:   #f87171;
  --glow:     0 0 12px color-mix(in srgb, var(--accent) 33%, transparent),
              0 0 32px color-mix(in srgb, var(--accent) 13%, transparent);
  --shadow:   0 4px 40px rgba(0,0,0,0.6);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  line-height: 1.6;
  background-image:
    linear-gradient(color-mix(in srgb, var(--accent) 2.5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 2.5%, transparent) 1px, transparent 1px);
  background-size: 36px 36px;
}

a { color: inherit; text-decoration: none; }
.hidden { display: none !important; }

/* ── 초기 로딩 ── */
.loading-view {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 10000;
}

.loading-spinner {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 3px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── 토스트 알림 ── */
.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 20000;
  display: flex;
  flex-direction: column-reverse;
  gap: 0.5rem;
  max-width: min(360px, calc(100vw - 2rem));
}

.toast {
  background: var(--bg2);
  border: 1px solid var(--danger);
  border-left-width: 4px;
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  color: var(--text);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.toast.show { opacity: 1; transform: translateY(0); }

.toast-error   { border-color: var(--danger); }
.toast-success { border-color: var(--success); }
.toast-info    { border-color: var(--accent); }

/* ── 로그인 ── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background:
    radial-gradient(ellipse at 30% 40%, color-mix(in srgb, var(--accent) 7%, transparent) 0%, transparent 55%),
    radial-gradient(ellipse at 70% 60%, color-mix(in srgb, var(--accent2) 5%, transparent) 0%, transparent 55%);
}

.login-card {
  background: var(--bg2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--glow), var(--shadow);
}

.login-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--accent);
  text-shadow: var(--glow);
  margin-bottom: 0.3rem;
  letter-spacing: 0.04em;
}

.login-sub {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 2rem;
  letter-spacing: 0.06em;
}

/* ── 폼 ── */
.form-group { margin-bottom: 1.1rem; }
.form-row { display: flex; gap: 0.75rem; }
.form-row .form-group { flex: 1; }

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.form-control {
  width: 100%;
  background: var(--bg3);
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: var(--radius);
  padding: 0.6rem 0.85rem;
  color: var(--text);
  font-size: 0.92rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 12%, transparent);
}
textarea.form-control { resize: vertical; min-height: 80px; }

/* ── 버튼 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: var(--radius);
  padding: 0.6rem 1.1rem;
  font-size: 0.85rem;
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); box-shadow: var(--glow); color: #fff; }

.btn-danger {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
}
.btn-danger:hover { background: color-mix(in srgb, var(--accent2) 12%, transparent); }

.btn-ghost {
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text-muted);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-full { width: 100%; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.78rem; }
.nav-arrow { font-size: 1rem; padding: 0.4rem 0.7rem; }

/* ── 알럿 ── */
.alert {
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  font-size: 0.82rem;
  margin-bottom: 1rem;
}
.alert-error   { background: color-mix(in srgb, var(--accent2) 8%, transparent); color: var(--danger); border: 1px solid color-mix(in srgb, var(--accent2) 30%, transparent); }
.alert-success { background: rgba(0,255,159,0.08); color: var(--success); border: 1px solid rgba(0,255,159,0.3); }

/* ── 헤더 ── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 62px;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
  background: rgba(4,6,15,0.9);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
}

.app-logo {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--accent);
  text-shadow: var(--glow);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.header-actions { display: flex; gap: 0.5rem; flex-shrink: 0; }

/* ── 테마 스위처 ── */
.theme-switcher { position: relative; }

.theme-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--glow), var(--shadow);
  padding: 0.5rem;
  min-width: 140px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.theme-swatch-btn {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.6rem;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.82rem;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}
.theme-swatch-btn:hover { background: color-mix(in srgb, var(--accent) 8%, transparent); color: var(--text); }
.theme-swatch-btn.active { color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }

.theme-swatch-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid rgba(128,128,128,0.3);
}

/* ── 헤더 검색 ── */
.header-search {
  position: relative;
  flex: 1;
  max-width: 320px;
  margin: 0 1.25rem;
}

.search-input { padding: 0.45rem 0.8rem; font-size: 0.82rem; }

.search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--bg2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--glow), var(--shadow);
  max-height: 320px;
  overflow-y: auto;
  z-index: 50;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.8rem;
  cursor: pointer;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 8%, transparent);
  font-size: 0.82rem;
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: color-mix(in srgb, var(--accent) 8%, transparent); }

.search-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.search-item-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-item-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-shrink: 0;
}
.search-empty {
  padding: 0.8rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ── 레이아웃 (사이드바 + 캘린더) ── */
.main-layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

/* ── 오늘 사이드바 ── */
.today-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--bg2);
  border: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
  border-radius: var(--radius);
  padding: 1rem;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.sidebar-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
}

.today-agenda { margin-top: 0.9rem; display: flex; flex-direction: column; gap: 0.6rem; }
.today-sidebar.collapsed .today-agenda { display: none; }

/* ── 할 일(Todo) ── */
.todo-header {
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px solid color-mix(in srgb, var(--accent) 12%, transparent);
}

.todo-form { margin-top: 0.8rem; }
.todo-form .form-control { padding: 0.45rem 0.7rem; font-size: 0.82rem; }

.todo-list {
  margin-top: 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-height: 260px;
  overflow-y: auto;
}

.todo-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.2rem;
  border-radius: var(--radius);
}
.todo-item:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }

.todo-item-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  cursor: pointer;
  border: 1px solid rgba(128,128,128,0.25);
}

.todo-category-picker {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.todo-cat-dot-btn {
  padding: 3px;
  border-radius: 50%;
  cursor: pointer;
  border: 1.5px solid transparent;
  line-height: 0;
}
.todo-cat-dot-btn:hover { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.todo-cat-dot-btn.selected { border-color: var(--accent); }

.cat-dot.none-dot,
.todo-item-dot.none-dot {
  background: transparent !important;
  border: 1px dashed var(--text-muted);
}

.todo-checkbox {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--accent);
}

.todo-text {
  flex: 1;
  font-size: 0.82rem;
  word-break: break-word;
}
.todo-item.done .todo-text { text-decoration: line-through; color: var(--text-muted); }

.todo-delete {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  padding: 0.1rem 0.3rem;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
}
.todo-item:hover .todo-delete { opacity: 1; }
.todo-delete:hover { color: var(--danger); }

.todo-clear-btn { margin-top: 0.7rem; width: 100%; }

.today-sidebar.todo-collapsed .todo-form,
.today-sidebar.todo-collapsed .todo-list,
.today-sidebar.todo-collapsed .todo-clear-btn { display: none; }

.agenda-empty {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.agenda-item {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  cursor: pointer;
  padding: 0.4rem;
  border-radius: var(--radius);
  transition: background 0.15s;
}
.agenda-item:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }

.agenda-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-top: 4px;
  flex-shrink: 0;
}

.agenda-title { font-size: 0.82rem; }
.agenda-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── 캘린더 ── */
.calendar-wrap {
  flex: 1;
  min-width: 0;
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.month-label {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: 0.04em;
  min-width: 140px;
}

.today-btn-spacer { flex: 1; }

.weekday-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.05em;
}
.weekday-row .sun { color: var(--accent2); }
.weekday-row .sat { color: var(--accent); }

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.day-cell {
  background: var(--bg2);
  border: 1px solid color-mix(in srgb, var(--accent) 10%, transparent);
  border-radius: var(--radius);
  min-height: 96px;
  padding: 0.4rem;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: hidden;
}
.day-cell:hover { border-color: var(--accent); box-shadow: 0 0 10px color-mix(in srgb, var(--accent) 15%, transparent); }
.day-cell.other-month { opacity: 0.35; }
.day-cell.today { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.day-cell.drag-over { border-color: var(--success); box-shadow: 0 0 12px rgba(0,255,159,0.35); }
.day-cell.holiday { border-color: color-mix(in srgb, var(--accent2) 35%, transparent); }

.holiday-label {
  font-size: 0.64rem;
  color: var(--accent2);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: -2px;
}

.holiday-text { color: var(--accent2) !important; }

.day-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.day-cell.today .day-num { color: var(--accent); font-weight: bold; }
.day-cell .day-num.sun { color: var(--accent2); }

.day-events { display: flex; flex-direction: column; gap: 2px; flex: 1; overflow: hidden; }

.event-chip {
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 3px;
  color: #04060f;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: grab;
}
.event-chip.chip-recurring { cursor: pointer; }
.event-chip.dragging { opacity: 0.4; }
.event-chip.more-chip {
  background: transparent !important;
  color: var(--text-muted);
  font-weight: 400;
  cursor: default;
}

/* ── 폼: 체크박스 라벨 ── */
.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 0.4rem;
  text-transform: none !important;
  font-size: 0.85rem !important;
  color: var(--text) !important;
  cursor: pointer;
}
.checkbox-label input { width: 15px; height: 15px; cursor: pointer; }

.recurring-hint {
  font-size: 0.78rem;
  color: var(--accent2);
  background: color-mix(in srgb, var(--accent2) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent2) 25%, transparent);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  margin-bottom: 1rem;
}

.recurrence-fields {
  border: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
  border-radius: var(--radius);
  padding: 0.9rem;
  margin-bottom: 1.1rem;
}

/* ── 카테고리 선택 ── */
.category-picker { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.category-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  font-size: 0.78rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.category-chip:hover { border-color: var(--accent); }
.category-chip.selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.cat-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.add-category-btn { margin-top: 0.6rem; }

.new-category-form {
  margin-top: 0.75rem;
  padding: 0.75rem;
  border: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
  border-radius: var(--radius);
}

.new-category-form .form-control { margin-bottom: 0.6rem; }

.new-category-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

/* ── 모달 ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal {
  background: var(--bg2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.75rem;
  width: 100%;
  max-width: 460px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--glow), var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
}

.modal-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
}
.modal-close:hover { color: var(--danger); }

.modal-footer {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in srgb, var(--accent) 10%, transparent);
}
.modal-footer .btn-danger { margin-right: auto; }

/* ── 색상 선택 ── */
.color-picker { display: flex; gap: 0.5rem; }
.color-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s, border-color 0.15s;
}
.color-swatch:hover { transform: scale(1.1); }
.color-swatch.selected { border-color: #fff; }

/* ── 반응형 ── */
@media (max-width: 900px) {
  .main-layout { flex-direction: column; padding: 1.25rem 1rem; }
  .today-sidebar { width: 100%; }
  .today-sidebar:not(.collapsed) .today-agenda { display: flex; }
}

@media (max-width: 640px) {
  .app-header {
    flex-wrap: wrap;
    height: auto;
    padding: 0.75rem 1rem;
    gap: 0.6rem;
  }
  .header-search { order: 3; width: 100%; max-width: none; margin: 0; }
  .header-actions { order: 2; margin-left: auto; }

  .calendar-wrap { padding: 0; }
  .day-cell { min-height: 64px; font-size: 0.85rem; padding: 0.3rem; }
  .event-chip { font-size: 0.62rem; }
  .header-actions .btn-sm { padding: 0.35rem 0.6rem; font-size: 0.7rem; }

  .calendar-nav { flex-wrap: wrap; gap: 0.6rem; }
  .month-label { min-width: auto; flex: 1; text-align: center; }

  .modal { padding: 1.25rem; max-height: 95vh; }
  .form-row { flex-direction: column; gap: 0; }

  .category-chip { font-size: 0.74rem; padding: 0.3rem 0.6rem; }

  .todo-delete { opacity: 1; }
}