/* ===================================================
   DORMITORY MEMORY ARCHIVE - STYLESHEET
   Primary Color Theme: #314B6E (RGB 49, 75, 110)
   Strict 2-Slide Architecture
   =================================================== */

:root {
  --brand-primary: #314B6E;
  --bg-midnight: #0E1A27;
  --bg-navy: #192A3E;
  --bg-card: rgba(49, 75, 110, 0.3);
  --accent-slate: #314B6E;
  --accent-steel: #7E99B8;
  --text-mist: #D5E2F0;
  --text-white: #F4F7FA;
  --tile-bg: #132233;
  --tile-border: rgba(126, 153, 184, 0.3);
  --tile-hover: #213752;
  --tile-active: #314B6E;
  --tile-solved: #314B6E;
  --tile-solved-border: #D5E2F0;
  --font-serif: "EB Garamond", Georgia, "Times New Roman", serif;
  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "Space Mono", monospace;
  --ease-cinematic: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: var(--bg-midnight);
  color: var(--text-mist);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ----------------- Film Grain Overlay ----------------- */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  pointer-events: none;
  z-index: 999;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* ----------------- Main Viewport & Track ----------------- */
.viewport-stage {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  position: relative;
  background: radial-gradient(circle at 50% 15%, #253C5A 0%, #0E1A27 75%);
}

.slides-track {
  display: flex;
  width: 200vw;
  height: 100vh;
  height: 100dvh;
  transition: transform 0.75s var(--ease-cinematic);
  will-change: transform;
}

/* Active Slide States */
.viewport-stage[data-active-slide="1"] .slides-track {
  transform: translateX(0vw);
}

.viewport-stage[data-active-slide="2"] .slides-track {
  transform: translateX(-100vw);
}

/* ----------------- Common Slide Layout ----------------- */
.slide {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  flex-shrink: 0;
  position: relative;
}

.slide-1 {
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(1rem, env(safe-area-inset-top)) max(0.75rem, env(safe-area-inset-right)) max(1.5rem, env(safe-area-inset-bottom)) max(0.75rem, env(safe-area-inset-left));
}

.slide-2 {
  overflow: hidden;
}

.slide-inner {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.slide-2-scrollable {
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: max(1.5rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(4rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
}

/* Custom Scrollbar for Slide 2 */
.slide-2-scrollable::-webkit-scrollbar {
  width: 5px;
}
.slide-2-scrollable::-webkit-scrollbar-track {
  background: var(--bg-midnight);
}
.slide-2-scrollable::-webkit-scrollbar-thumb {
  background: var(--brand-primary);
  border-radius: 2px;
}

/* ===================================================
   SLIDE 1: INTERACTIVE WORD SEARCH PUZZLE
   =================================================== */

.archive-header {
  text-align: center;
  margin-bottom: clamp(0.75rem, 2vh, 1.25rem);
}

.archive-title {
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 4.5vw, 2.1rem);
  font-weight: 500;
  color: var(--text-white);
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.puzzle-instructions {
  font-size: clamp(0.8rem, 2.5vw, 0.95rem);
  color: var(--text-mist);
  font-weight: 400;
  opacity: 0.9;
}

/* Word Progress Tracker */
.target-words-tracker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(0.4rem, 1.5vw, 0.75rem);
  margin-bottom: clamp(0.75rem, 2vh, 1.25rem);
}

.tracker-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: clamp(0.4rem, 1vw, 0.55rem) clamp(0.5rem, 1.5vw, 0.8rem);
  background: rgba(49, 75, 110, 0.25);
  border: 1px solid rgba(126, 153, 184, 0.25);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 2vw, 0.78rem);
  transition: all 0.3s ease;
}

.tracker-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-steel);
  opacity: 0.5;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.tracker-label {
  color: var(--accent-steel);
  font-size: 0.7em;
}

.tracker-text {
  color: var(--text-white);
  font-weight: 700;
  letter-spacing: 0.03em;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tracker-status {
  font-size: 0.65em;
  color: var(--accent-steel);
  letter-spacing: 0.06em;
}

/* Solved state for tracker items */
.tracker-item.solved {
  background: rgba(49, 75, 110, 0.65);
  border-color: var(--text-mist);
  box-shadow: 0 0 12px rgba(49, 75, 110, 0.4);
}

.tracker-item.solved .tracker-indicator {
  background: var(--text-white);
  opacity: 1;
  box-shadow: 0 0 6px var(--text-white);
}

.tracker-item.solved .tracker-text {
  color: var(--text-white);
}

.tracker-item.solved .tracker-status {
  color: var(--text-mist);
  font-weight: 700;
}

/* Puzzle Board Wrapper */
.puzzle-board-wrapper {
  position: relative;
  background: rgba(14, 26, 39, 0.88);
  border: 1px solid rgba(126, 153, 184, 0.25);
  border-radius: 8px;
  padding: clamp(0.5rem, 1.8vw, 0.9rem);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
  margin-bottom: clamp(0.6rem, 1.5vh, 1rem);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

.selection-svg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.selection-svg-layer line {
  stroke: var(--text-mist);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-opacity: 0.8;
}

/* Crossword / Word Search Grid Matrix */
.crossword-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(2px, 0.8vw, 5px);
  width: 100%;
  max-width: 540px;
  margin: 0 auto;
}

.grid-cell {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-radius: 3px;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
  min-width: 0;
}

/* Active Tile Styles */
.grid-cell.tile-letter {
  background: var(--tile-bg);
  border: 1px solid var(--tile-border);
  color: var(--text-white);
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 2.4vw, 1.05rem);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.grid-cell.tile-letter:hover {
  background: var(--tile-hover);
  border-color: var(--accent-steel);
}

.grid-cell.tile-selected {
  background: var(--brand-primary) !important;
  border-color: var(--text-white) !important;
  color: var(--text-white) !important;
  transform: scale(0.95);
  box-shadow: 0 0 10px rgba(213, 226, 240, 0.45);
  z-index: 3;
}

.grid-cell.tile-solved {
  background: var(--brand-primary) !important;
  border-color: var(--tile-solved-border) !important;
  color: var(--text-white) !important;
  font-weight: 700;
}

.grid-cell.tile-solved::after {
  content: "";
  position: absolute;
  bottom: 2px;
  width: 3px;
  height: 3px;
  background: var(--text-mist);
  border-radius: 50%;
  opacity: 0.85;
}

/* Live Selection Tray */
.selection-live-tray {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.75rem;
  background: rgba(49, 75, 110, 0.25);
  border: 1px solid rgba(126, 153, 184, 0.25);
  border-radius: 4px;
  margin-bottom: 0.65rem;
  font-family: var(--font-mono);
}

.tray-caption {
  font-size: clamp(0.6rem, 1.8vw, 0.68rem);
  color: var(--accent-steel);
  letter-spacing: 0.08em;
}

.tray-spelling {
  font-size: clamp(0.82rem, 2.4vw, 0.95rem);
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.1em;
  min-height: 1.2rem;
}

/* Status Bar */
.puzzle-status-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.4rem;
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 2vw, 0.75rem);
  letter-spacing: 0.06em;
  color: var(--accent-steel);
  text-align: center;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-steel);
  border-radius: 50%;
  opacity: 0.7;
  flex-shrink: 0;
}

.puzzle-status-bar.success .status-dot {
  background: var(--text-white);
  box-shadow: 0 0 8px var(--text-white);
  animation: pulse-dot 1.2s infinite ease-in-out;
}

.puzzle-status-bar.success .status-message {
  color: var(--text-white);
  font-weight: 700;
  letter-spacing: 0.1em;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.3); }
}

/* ===================================================
   SLIDE 2: LETTER & SINGLE TOP PHOTOGRAPH
   ================================================== */

.letter-document {
  max-width: 560px;
  margin: 0 auto;
}

/* Single Editorial Photograph at Top */
.editorial-photo-card {
  margin: clamp(0.5rem, 1.5vh, 1rem) 0 clamp(1.25rem, 2.5vh, 1.75rem);
  position: relative;
}

.photo-card-top {
  transform: rotate(-0.3deg);
}

.photo-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  max-height: 320px;
  overflow: hidden;
  background: #0a1420;
  border: 1px solid rgba(126, 153, 184, 0.3);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  border-radius: 2px;
}

.archive-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-shadow: inset 0 0 35px rgba(14, 26, 39, 0.6);
  pointer-events: none;
}

.photo-caption {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-top: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-steel);
  letter-spacing: 0.12em;
  padding: 0 0.1rem;
}

/* Opening Quote */
.opening-quote {
  margin: clamp(1.25rem, 3vh, 1.8rem) 0 clamp(1rem, 2vh, 1.35rem);
  padding: 0 0.25rem;
}

.opening-quote p {
  font-family: var(--font-serif);
  font-size: clamp(1.18rem, 3.8vw, 1.48rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.55;
  color: var(--text-white);
  letter-spacing: -0.01em;
}

.editorial-hairline-separator {
  width: 40px;
  height: 1px;
  background: var(--brand-primary);
  opacity: 0.6;
  margin: clamp(1rem, 2vh, 1.35rem) 0.25rem;
}

/* Body Content */
.letter-body-content {
  font-size: clamp(0.92rem, 2.5vw, 1rem);
  line-height: 1.85;
  color: var(--text-mist);
  font-weight: 400;
  padding: 0 0.25rem;
}

.letter-paragraph {
  margin-bottom: clamp(1.1rem, 2.5vh, 1.4rem);
  text-align: left;
}

.letter-paragraph-final {
  margin-bottom: 0;
}

/* Central Highlighted Quote */
.mid-body-quote {
  margin: clamp(1.3rem, 2.8vh, 1.75rem) 0;
  padding: clamp(0.75rem, 1.8vw, 1rem) clamp(0.85rem, 2vw, 1.25rem);
  border-left: 2px solid var(--brand-primary);
  background: rgba(49, 75, 110, 0.25);
  border-radius: 0 4px 4px 0;
}

.mid-body-quote p {
  font-family: var(--font-serif);
  font-size: clamp(1.02rem, 3vw, 1.18rem);
  font-style: italic;
  line-height: 1.65;
  color: var(--text-white);
}

/* ===================================================
   RESPONSIVE ADJUSTMENTS
   =================================================== */

@media (max-width: 480px) {
  .target-words-tracker {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
  
  .tracker-item {
    padding: 0.4rem 0.6rem;
  }

  .puzzle-board-wrapper {
    padding: 0.45rem;
  }

  .crossword-grid {
    gap: 2px;
  }

  .editorial-photo-card {
    margin: 0.5rem 0 1.2rem;
  }
}