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

:root {
  --bg-deep:       #080c18;
  --bg-card:       #0f1624;
  --bg-panel:      #141d2e;
  --bg-tile:       #182236;
  --bg-tile-hover: #1e2d4a;
  --border:        rgba(139,124,248,0.12);
  --border-light:  rgba(226,232,240,0.06);
  --accent:        #8b7cf8;
  --accent-glow:   rgba(139,124,248,0.25);
  --amber:         #f59e0b;
  --amber-glow:    rgba(245,158,11,0.2);
  --danger:        #ef4444;
  --danger-glow:   rgba(239,68,68,0.2);
  --text-primary:  #e2e8f0;
  --text-muted:    #64748b;
  --text-dim:      #334155;
  --filled-glow:   rgba(139,124,248,0.4);
  --today-glow:    rgba(245,158,11,0.5);
  --radius-sm:     6px;
  --radius:        10px;
  --radius-lg:     16px;
  --shadow:        0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:     0 8px 48px rgba(0,0,0,0.7);
  --header-h:      64px;
  --strip-h:       56px;
  --transition:    0.2s ease;
}

html { font-size: 15px; scroll-behavior: smooth; }
body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── SCROLLBAR ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }

/* ── SECTION WRAPPER ───────────────────────────────────── */
/* Gives sticky children a scroll container scoped to the section */
#memory-view {
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ── HEADER ────────────────────────────────────────────── */
#app-header {
  /* sticky instead of fixed — sticks to the top of #memory-view,
     not the top of the viewport, so no gap above it */
  position: sticky;
  top: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: rgba(8,12,24,0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  gap: 12px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.app-logo {
  font-size: 1.3rem;
  color: var(--accent);
  line-height: 1;
  animation: pulse-logo 3s ease-in-out infinite;
}

@keyframes pulse-logo {
  0%,100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.app-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.header-center {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  justify-content: center;
}

.month-nav {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 28px; height: 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.month-nav:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

#current-month-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  min-width: 140px;
  text-align: center;
  letter-spacing: -0.01em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-header:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent);
}
.btn-header.btn-accent {
  border-color: var(--accent);
  background: rgba(139,124,248,0.15);
  color: var(--accent);
}
.btn-header.btn-accent:hover {
  background: rgba(139,124,248,0.3);
  box-shadow: 0 0 16px var(--accent-glow);
}
.btn-header.btn-danger:hover {
  border-color: var(--danger);
  background: var(--danger-glow);
  color: var(--danger);
}
.btn-icon { font-size: 0.9rem; }

/* ── YEAR HEATMAP STRIP ─────────────────────────────────── */
#year-strip {
  /* sticky so it sits just below the sticky header */
  position: sticky;
  top: var(--header-h);
  height: var(--strip-h);
  background: rgba(8,12,24,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  z-index: 90;
  overflow: hidden;
  padding: 8px 20px;
}

#heatmap-container {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
#heatmap-container::-webkit-scrollbar { display: none; }

.heatmap-month {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex-shrink: 0;
}

.heatmap-month-label {
  font-size: 0.6rem;
  color: var(--text-dim);
  text-align: center;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 2px;
  font-family: 'Space Grotesk', sans-serif;
}

.heatmap-row {
  display: flex;
  gap: 1px;
}

.heatmap-dot {
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--bg-panel);
  transition: all 0.3s ease;
  cursor: pointer;
}
.heatmap-dot.filled {
  background: var(--accent);
  box-shadow: 0 0 4px var(--accent-glow);
}
.heatmap-dot.today {
  background: var(--amber);
  box-shadow: 0 0 6px var(--amber-glow);
}
.heatmap-dot:hover { transform: scale(1.4); }

/* ── MAIN CONTENT ───────────────────────────────────────── */
#main-content {
  /* No margin-top needed — header and strip are sticky and flow
     naturally above this element in the document */
  padding: 24px 20px 40px;
  max-width: 960px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}

/* ── CALENDAR WEEKDAY HEADER ────────────────────────────── */
#calendar-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 6px;
  padding: 0 2px;
}
.cal-weekday {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 0;
}

/* ── CALENDAR GRID ──────────────────────────────────────── */
#calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.day-tile {
  aspect-ratio: 1;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  background: var(--bg-tile);
  position: relative;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.day-tile:hover {
  border-color: var(--accent);
  background: var(--bg-tile-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.day-tile.empty { opacity: 0.6; }
.day-tile.empty:hover { opacity: 1; }

.day-tile.filled {
  border-color: rgba(139,124,248,0.3);
  opacity: 1;
}
.day-tile.filled:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.day-tile.today {
  border-color: var(--amber) !important;
  box-shadow: 0 0 12px var(--amber-glow);
}

.day-tile.other-month {
  opacity: 0.2;
  pointer-events: none;
}

.tile-num {
  position: absolute;
  top: 5px; left: 7px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  font-family: 'Space Grotesk', sans-serif;
  z-index: 2;
  line-height: 1;
}

.day-tile.filled .tile-num { color: var(--text-primary); }
.day-tile.today .tile-num  { color: var(--amber); }

.tile-img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  animation: fade-in 0.4s ease;
}

@keyframes fade-in {
  from { opacity: 0; transform: scale(1.05); }
  to   { opacity: 1; transform: scale(1); }
}

.tile-empty-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  opacity: 0;
  transition: opacity var(--transition);
}
.day-tile:hover .tile-empty-icon { opacity: 0.4; }

.tile-filled-badge {
  position: absolute;
  bottom: 4px; right: 4px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  z-index: 3;
}

/* ── STATS BAR ──────────────────────────────────────────── */
#calendar-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.stat-sep { opacity: 0.4; }
#stat-filled, #stat-total { color: var(--accent); }

/* ── MODALS ─────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal.hidden { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
}

.modal-box {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 420px;
  animation: modal-in 0.25s ease;
  overflow: hidden;
}
.modal-box-wide { max-width: 520px; }

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.94) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
}

.modal-close {
  background: none;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  width: 28px; height: 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { border-color: var(--danger); color: var(--danger); }

.modal-body { padding: 20px; }

#modal-image {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: var(--radius);
  background: var(--bg-deep);
  display: block;
}

.modal-footer {
  display: flex;
  gap: 8px;
  padding: 16px 20px;
  border-top: 1px solid var(--border-light);
  justify-content: flex-end;
}

.btn-modal {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-tile);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-modal:hover { border-color: var(--accent); background: var(--accent-glow); }
.btn-modal-danger { border-color: rgba(239,68,68,0.3); color: var(--danger); }
.btn-modal-danger:hover { border-color: var(--danger); background: var(--danger-glow); }
.btn-modal-accent { border-color: var(--accent); background: rgba(139,124,248,0.15); color: var(--accent); }
.btn-modal-accent:hover { background: rgba(139,124,248,0.3); box-shadow: 0 0 16px var(--accent-glow); }

/* ── GENERATOR BODY ─────────────────────────────────────── */
.generator-body { padding: 20px; }
.gen-section { margin-bottom: 20px; }

.gen-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.gen-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.gen-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.gen-field-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.gen-input {
  background: var(--bg-tile);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  padding: 8px 10px;
  outline: none;
  transition: border-color var(--transition);
  color-scheme: dark;
  width: 100%;
}
.gen-input:focus { border-color: var(--accent); }

.gen-input-sm {
  width: 90px;
  text-align: center;
}

.gen-arrow {
  color: var(--text-dim);
  font-size: 1.1rem;
  padding-top: 18px;
}

.gen-durations {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.gen-dur-btn {
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-tile);
  color: var(--text-muted);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.gen-dur-btn:hover,
.gen-dur-btn.active {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent);
}

.gen-options { display: flex; flex-direction: column; gap: 10px; }

.gen-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
}
.gen-toggle input { display: none; }

.toggle-track {
  width: 32px; height: 18px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--bg-tile);
  position: relative;
  transition: all var(--transition);
  flex-shrink: 0;
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: all var(--transition);
}
.gen-toggle input:checked ~ .toggle-track {
  background: var(--accent-glow);
  border-color: var(--accent);
}
.gen-toggle input:checked ~ .toggle-track::after {
  left: 16px;
  background: var(--accent);
}

.gen-preview-count {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-dim);
  padding: 10px;
  border-top: 1px solid var(--border-light);
  margin-top: 4px;
}
.gen-preview-count.has-images { color: var(--accent); }

/* ── CLEAR WARNING ──────────────────────────────────────── */
.clear-warning {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--danger);
  opacity: 0.8;
}

/* ── VIDEO PLAYER ───────────────────────────────────────── */
#video-player {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}
#video-player.hidden { display: none; }

#player-bg {
  position: absolute;
  inset: 0;
  background: #000;
}

#player-frame {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#player-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.7s ease;
  position: absolute;
  inset: 0;
}
#player-img.kb-active {
  animation: ken-burns 8s ease-out forwards;
}

@keyframes ken-burns {
  from { transform: scale(1) translate(0%, 0%); }
  to   { transform: scale(1.08) translate(-2%, -1%); }
}

#player-overlay-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  padding: 24px 28px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 2;
}

#player-date-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

#player-counter {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  font-family: 'Space Grotesk', sans-serif;
}

#player-overlay-bottom {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 0 0 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
  z-index: 2;
}

#player-progress-bar {
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.15);
  margin-bottom: 16px;
}

#player-progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s linear;
  box-shadow: 0 0 8px var(--accent);
}

#player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 0 20px;
}

#player-controls button {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  width: 40px; height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--transition);
  display: flex; align-items: center; justify-content: center;
}
#player-controls button:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.3);
  transform: scale(1.05);
}

#ctrl-close {
  position: absolute;
  right: 20px;
}

#ctrl-info {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: 0.03em;
  pointer-events: none;
}

/* ── TOAST ──────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 0.82rem;
  z-index: 500;
  box-shadow: var(--shadow);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
#toast.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(10px);
  pointer-events: none;
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 680px) {
  .btn-label { display: none; }
  .btn-header { padding: 7px 10px; }
  #app-header { padding: 0 12px; }
  #main-content { padding: 16px 10px 40px; }
  #year-strip { display: none; }
  #calendar-grid { gap: 4px; }
  .day-tile { border-radius: 6px; }
  .tile-num { font-size: 0.6rem; top: 3px; left: 4px; }
  .modal-box { width: 95%; }
}

@media (max-width: 400px) {
  .header-center { display: none; }
}