/* ============================================
   Post Tracker — Design System & Styles
   ============================================ */

/* ── Tokens ── */
:root {
  /* Palette — clean black & white minimalist mood */
  --clr-bg:          #ffffff;
  --clr-surface:     #f4f5f7;
  --clr-surface-2:   #ffffff;
  --clr-border:      #e0e2eb;
  --clr-text:        #111111;
  --clr-text-muted:  #6b7086;
  --clr-accent:      #111111;
  --clr-accent-glow: rgba(17, 17, 17, .15);
  --clr-accent-hover:#333333;
  --clr-danger:      #e53e3e;
  --clr-danger-hover:#c53030;
  --clr-success:     #38a169;
  --clr-warning:     #dd6b20;
  --clr-info:        #3182ce;

  /* Urgency badges */
  --clr-urgent:      #ff5c72;
  --clr-soon:        #ffb347;
  --clr-chill:       #3ddfa0;

  /* Typography */
  --ff: 'Inter', system-ui, -apple-system, sans-serif;

  /* Radii & spacing */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --transition: .2s ease;
}

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

body {
  font-family: var(--ff);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Utility ── */
.hidden { display: none !important; }
.spacer { flex: 1; }

/* ────────────────────────────────
   HEADER
──────────────────────────────── */
#app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--clr-border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--clr-accent);
}

#app-header h1 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--clr-text);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* ── View Toggle ── */
.view-toggle {
  display: flex;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 2px;
}
.view-btn {
  background: transparent;
  border: none;
  color: var(--clr-text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.view-btn svg { width: 16px; height: 16px; }
.view-btn:hover { color: var(--clr-text); }
.view-btn.active {
  background: var(--clr-surface);
  color: var(--clr-accent);
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

.date-badge {
  font-size: .8rem;
  color: var(--clr-text-muted);
  background: var(--clr-surface);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--clr-border);
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--clr-accent);
  color: #fff;
  border: none;
  padding: 9px 20px;
  border-radius: 999px;
  font-family: var(--ff);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 0 16px var(--clr-accent-glow);
}
.btn-primary svg { width: 16px; height: 16px; }
.btn-primary:hover {
  background: var(--clr-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 24px var(--clr-accent-glow);
}
.btn-primary:active { transform: scale(.97); }

.btn-secondary {
  background: var(--clr-surface-2);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
  padding: 9px 20px;
  border-radius: 999px;
  font-family: var(--ff);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-secondary:hover { background: var(--clr-border); }

.btn-danger {
  background: transparent;
  color: var(--clr-danger);
  border: 1px solid var(--clr-danger);
  padding: 9px 20px;
  border-radius: 999px;
  font-family: var(--ff);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.btn-danger:hover {
  background: var(--clr-danger);
  color: #fff;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--clr-text-muted);
  font-size: 1.6rem;
  cursor: pointer;
  transition: color var(--transition);
  line-height: 1;
}
.btn-icon:hover { color: var(--clr-text); }

/* ────────────────────────────────
   REMINDER BANNER
──────────────────────────────── */
#reminder-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 20px 32px 0;
  padding: 16px 22px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 179, 71, .12), rgba(255, 92, 114, .10));
  border: 1px solid rgba(255, 179, 71, .25);
  animation: bannerPulse 3s ease-in-out infinite;
}

@keyframes bannerPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 179, 71, .15); }
  50%      { box-shadow: 0 0 20px 2px rgba(255, 179, 71, .12); }
}

.reminder-icon svg {
  width: 24px;
  height: 24px;
  color: var(--clr-warning);
  animation: bellSwing 2s ease-in-out infinite;
}

@keyframes bellSwing {
  0%, 100% { transform: rotate(0); }
  15%      { transform: rotate(12deg); }
  30%      { transform: rotate(-10deg); }
  45%      { transform: rotate(6deg); }
  55%      { transform: rotate(0); }
}

#reminder-text {
  font-size: .88rem;
  color: var(--clr-text);
  line-height: 1.5;
}
#reminder-text strong {
  color: var(--clr-warning);
}

/* ────────────────────────────────
   STATS STRIP
──────────────────────────────── */
#stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 24px 32px 0;
}

.stat-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-2px);
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--clr-text);
}

.stat-label {
  font-size: .78rem;
  color: var(--clr-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ────────────────────────────────
   FILTER BAR
──────────────────────────────── */
#filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 32px 4px;
  flex-wrap: wrap;
}

.filter-toggles {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-selects {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.select-wrapper {
  position: relative;
}
.select-wrapper select {
  padding: 7px 32px 7px 16px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-family: var(--ff);
  font-size: .8rem;
  font-weight: 500;
  border-radius: 999px;
  cursor: pointer;
  appearance: none;
  transition: all var(--transition);
}
.select-wrapper select:hover, .select-wrapper select:focus {
  border-color: var(--clr-text-muted);
  outline: none;
}
.select-wrapper::after {
  content: '';
  position: absolute;
  top: 50%; right: 14px;
  transform: translateY(-50%);
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--clr-text-muted);
  pointer-events: none;
}

.filter-btn {
  background: var(--clr-surface);
  color: var(--clr-text-muted);
  border: 1px solid var(--clr-border);
  padding: 7px 18px;
  border-radius: 999px;
  font-family: var(--ff);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover { color: var(--clr-text); border-color: var(--clr-text-muted); }
.filter-btn.active {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
}

/* ────────────────────────────────
   POST LIST / CARDS
──────────────────────────────── */
#post-list {
  padding: 20px 32px 60px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--clr-text-muted);
}
.empty-state svg {
  width: 56px;
  height: 56px;
  margin-bottom: 16px;
  opacity: .35;
}
.empty-state h2 {
  font-size: 1.15rem;
  margin-bottom: 6px;
  color: var(--clr-text);
}
.empty-state p { font-size: .88rem; }

/* Card */
.post-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  animation: cardIn .35s ease both;
}
.post-card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,.25);
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Urgency strip on left */
.post-card .urgency-strip {
  width: 5px;
  align-self: stretch;
  border-radius: 999px;
  flex-shrink: 0;
}
.urgency-strip.urgent { background: var(--clr-urgent); box-shadow: 0 0 10px rgba(255,92,114,.4); }
.urgency-strip.soon   { background: var(--clr-soon); }
.urgency-strip.chill  { background: var(--clr-chill); }
.urgency-strip.done   { background: var(--clr-text-muted); }

.post-card .card-body {
  flex: 1;
  min-width: 0;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .78rem;
  color: var(--clr-text-muted);
}
.card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.card-meta svg {
  width: 14px;
  height: 14px;
}

/* Status & approval badges */
.badge {
  font-size: .72rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}
.badge-draft      { background: rgba(17,17,17,.08); color: var(--clr-text); }
.badge-ready      { background: rgba(49,130,206,.15); color: var(--clr-info); }
.badge-waiting    { background: rgba(221,107,32,.15); color: var(--clr-warning); }
.badge-posted     { background: rgba(56,161,105,.15); color: var(--clr-success); }
.badge-approved   { background: rgba(56,161,105,.15); color: var(--clr-success); border: 1px solid rgba(56,161,105,.3); margin-left: 6px; }

.card-badges {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ── Due countdown on card ── */
.due-countdown {
  font-size: .75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.due-countdown.urgent { background: rgba(255,92,114,.15); color: var(--clr-urgent); }
.due-countdown.soon   { background: rgba(255,179,71,.15); color: var(--clr-warning); }
.due-countdown.chill  { background: rgba(61,223,160,.1); color: var(--clr-chill); }
.due-countdown.done   { background: rgba(139,144,179,.1); color: var(--clr-text-muted); }


/* ────────────────────────────────
   CALENDAR VIEW (MONTHLY GRID)
──────────────────────────────── */
#calendar-view {
  padding: 20px 32px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.calendar-legend {
  display: flex;
  gap: 16px;
  font-size: .85rem;
  font-weight: 600;
  flex-wrap: wrap;
  align-items: center;
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-color { width: 12px; height: 12px; border-radius: 50%; }
.grp-hoai { background: #ff7a8c; box-shadow: 0 0 8px rgba(255,122,140,.4); } 
.grp-hd   { background: #47b0ff; box-shadow: 0 0 8px rgba(71,176,255,.4); }   
.grp-ssda { background: #3ddfa0; box-shadow: 0 0 8px rgba(61,223,160,.4); }   

.calendar-filters {
  display: flex;
  gap: 16px;
  margin-left: 16px;
  padding-left: 16px;
  border-left: 1px solid var(--clr-border);
}
.cal-filter-label { font-size: .75rem; color: var(--clr-text-muted); font-weight: 500; }
.cal-filter-label:hover { color: var(--clr-text); }
.cal-toggle-track { width: 28px; height: 16px; }
.cal-toggle-thumb { width: 12px; height: 12px; }
.cal-filter-label input:checked + .cal-toggle-track .cal-toggle-thumb { transform: translateX(12px); }

.calendar-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}
#calendar-month-title {
  font-size: 1.2rem;
  font-weight: 700;
  min-width: 140px;
  text-align: center;
}

/* Grid */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

.cal-day-name {
  text-align: center;
  font-size: .8rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  padding-bottom: 8px;
}

.cal-days-container {
  display: contents; /* Let children join the main grid */
}

.cal-day-cell {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  min-height: 120px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color var(--transition);
}
.cal-day-cell.empty {
  background: transparent;
  border-color: transparent;
}
.cal-day-cell.today {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 1px var(--clr-accent);
}
.cal-day-cell:not(.empty):hover {
  border-color: var(--clr-text-muted);
}

.cal-day-number {
  font-size: .9rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  align-self: flex-end;
}
.cal-day-cell.today .cal-day-number {
  color: var(--clr-accent);
}

/* Items inside the cell */
.cal-item {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-left: 3px solid transparent;
  border-radius: 4px;
  padding: 6px 8px;
  font-size: .75rem;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s, border-color 0.1s;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cal-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  border-right-color: var(--clr-text-muted);
  border-top-color: var(--clr-text-muted);
  border-bottom-color: var(--clr-text-muted);
}

.cal-item[data-grp="HOAI"] { border-left-color: #ff7a8c; }
.cal-item[data-grp="HD"]   { border-left-color: #47b0ff; }
.cal-item[data-grp="SSDA"] { border-left-color: #3ddfa0; }

.cal-item-title {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--clr-text);
}

.cal-item-type {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.type-apprv { color: var(--clr-warning); } 
.type-due   { color: var(--clr-urgent); }  
.type-post  { color: var(--clr-success); } 

/* Quick Status Selector in Calendar Item */
.cal-status-select {
  margin-top: 4px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 4px;
  color: var(--clr-text);
  font-size: .7rem;
  font-weight: 600;
  padding: 4px 6px;
  width: 100%;
  cursor: pointer;
  appearance: none; /* Remove default arrow to make room for colors */
  text-align: center;
  transition: all var(--transition);
}
.cal-status-select:focus {
  outline: none;
  border-color: var(--clr-text);
  box-shadow: 0 0 0 2px rgba(17,17,17,0.1);
}

/* Status colors for the dropdown */
.cal-status-draft-1, .cal-status-draft-2, .cal-status-draft-3 {
  background: rgba(17,17,17,.08);
  color: var(--clr-text);
  border-color: transparent;
}
.cal-status-ready {
  background: rgba(49,130,206,.15);
  color: var(--clr-info);
  border-color: rgba(49,130,206,.3);
}
.cal-status-waiting {
  background: rgba(221,107,32,.15);
  color: var(--clr-warning);
  border-color: rgba(221,107,32,.3);
}
.cal-status-posted {
  background: rgba(56,161,105,.15);
  color: var(--clr-success);
  border-color: rgba(56,161,105,.3);
}

/* ────────────────────────────────
   MODAL
──────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .6);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  animation: fadeIn .2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  box-shadow: 0 10px 40px rgba(0,0,0,.15);
  border-radius: var(--radius-lg);
  width: 520px;
  max-width: 94vw;
  max-height: 90vh;
  overflow-y: auto;
  padding: 28px 30px;
  animation: modalSlide .25s ease;
}
.modal-sm { width: 380px; }

@keyframes modalSlide {
  from { opacity: 0; transform: translateY(20px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}
.modal-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
}

/* Form */
.form-group {
  margin-bottom: 16px;
  flex: 1;
}
.form-group label {
  display: block;
  font-size: .78rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.optional {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.form-row {
  display: flex;
  gap: 16px;
}

input[type="text"],
input[type="datetime-local"],
select,
textarea {
  width: 100%;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--clr-text);
  font-family: var(--ff);
  font-size: .88rem;
  outline: none;
  transition: border-color var(--transition);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}

textarea { resize: vertical; }

select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b90b3' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5H7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* Toggle switch */
.checkbox-group {
  display: flex;
  align-items: flex-end;
  padding-bottom: 2px;
}
.toggle-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: .88rem;
  font-weight: 500;
  color: var(--clr-text);
  text-transform: none;
  letter-spacing: 0;
}
.toggle-label input { display: none; }
.toggle-track {
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: var(--clr-border);
  position: relative;
  transition: background var(--transition);
}
.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--clr-text-muted);
  transition: transform var(--transition), background var(--transition);
}
.toggle-label input:checked + .toggle-track {
  background: var(--clr-success);
}
.toggle-label input:checked + .toggle-track .toggle-thumb {
  transform: translateX(18px);
  background: #fff;
}

.save-error {
  font-size: .9rem;
  color: var(--clr-danger);
  margin-top: 8px;
  padding: 8px 12px;
  background: rgba(229, 62, 62, 0.08);
  border-radius: var(--radius-sm);
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}

.confirm-text {
  font-size: .88rem;
  color: var(--clr-text-muted);
  margin-bottom: 22px;
}

/* ────────────────────────────────
   RESPONSIVE
──────────────────────────────── */
@media (max-width: 720px) {
  #app-header { padding: 14px 18px; flex-wrap: wrap; gap: 12px; }
  .header-right { width: 100%; justify-content: space-between; }
  #stats-strip { grid-template-columns: repeat(2, 1fr); padding-left: 18px; padding-right: 18px; }
  #filter-bar, #post-list, #calendar-view { padding-left: 18px; padding-right: 18px; }
  #reminder-banner { margin-left: 18px; margin-right: 18px; }
  .form-row { flex-direction: column; gap: 0; }
  .post-card { flex-wrap: wrap; }
  .card-badges { width: 100%; margin-top: 8px;  }

  /* Grid mobile adjust */
  .calendar-header { flex-direction: column; gap: 14px; align-items: flex-start; }
  .calendar-filters { margin-left: 0; padding-left: 0; border-left: none; width: 100%; justify-content: space-between; margin-top: 8px; }
  .calendar-grid { display: flex; flex-direction: column; gap: 12px; }
  .cal-day-name { display: none; }
  .cal-day-cell { min-height: auto; }
  .cal-day-cell.empty { display: none; }
  .cal-day-cell::before {
    content: attr(data-date-label);
    font-size: .8rem;
    color: var(--clr-text-muted);
    font-weight: 600;
    margin-bottom: 8px;
  }
  .cal-day-number { display: none; }
}

@media (max-width: 480px) {
  #stats-strip { grid-template-columns: 1fr 1fr; gap: 10px; }
  .date-badge { display: none; }
  #app-header h1 { font-size: 1.05rem; }
}