/* ═══════════════════════════════════════════════════════
   NOVELLA ENGINE CSS v1.3
   + Weather FX styles (canvas, fog)
   ═══════════════════════════════════════════════════════ */

:root {
  --cyan: #00f0ff;
  --magenta: #ff00aa;
  --dark: #050510;
  --panel-bg: rgba(5,5,20,0.92);
  --text: #e0e0f0;
  --name-cyan: #00f0ff;
  --name-magenta: #ff00aa;
  --name-zero: #00ff88;
  --border-glow: 0 0 15px rgba(0,240,255,0.3);
}

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

body {
  width: 100vw; height: 100vh; overflow: hidden;
  background: var(--dark);
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  user-select: none; -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#game {
  position: relative; width: 100%; height: 100%;
  display: flex; flex-direction: column;
}

/* Background layer */
#bg-layer {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  transition: background-image 1.2s ease-in-out, filter 0.8s;
}
#bg-layer.glitching {
  animation: glitch-bg 0.3s infinite;
}
@keyframes glitch-bg {
  0% { filter: hue-rotate(0deg) brightness(1); }
  25% { filter: hue-rotate(90deg) brightness(1.5); }
  50% { filter: hue-rotate(180deg) brightness(0.7); }
  75% { filter: hue-rotate(270deg) brightness(1.3); }
  100% { filter: hue-rotate(360deg) brightness(1); }
}

/* Weather FX canvas — between bg and sprite */
#fx-canvas {
  position: absolute; inset: 0; z-index: 1;
  pointer-events: none;
}

/* Fog overlay — CSS-based, gentle drift */
#fog-overlay {
  position: absolute; inset: 0; z-index: 1;
  pointer-events: none; display: none;
  background: radial-gradient(ellipse at 30% 50%, rgba(180,200,220,0.1) 0%, rgba(160,180,200,0.06) 40%, transparent 70%);
  animation: fog-drift 12s ease-in-out infinite;
}
#fog-overlay.active { display: block; }
@keyframes fog-drift {
  0% { transform: translateX(-5%); opacity: 0.7; }
  25% { transform: translateX(3%); opacity: 1; }
  50% { transform: translateX(8%); opacity: 0.6; }
  75% { transform: translateX(2%); opacity: 0.9; }
  100% { transform: translateX(-5%); opacity: 0.7; }
}

/* Rain overlay */
#rain-overlay {
  position: absolute; inset: 0; z-index: 1;
  pointer-events: none; opacity: 0.25;
  background: repeating-linear-gradient(
    transparent, transparent 2px,
    rgba(0,240,255,0.05) 2px, rgba(0,240,255,0.05) 4px
  );
  animation: rain 0.3s linear infinite;
  display: none;
}
#rain-overlay.active { display: block; }
@keyframes rain {
  from { background-position: 0 0; }
  to { background-position: 20px 20px; }
}

/* Character sprite */
#sprite-layer {
  position: absolute; inset: 0; z-index: 2;
  display: flex; align-items: flex-end; justify-content: center;
  pointer-events: none; transition: opacity 0.6s;
}
#sprite-img {
  max-height: 80vh; max-width: 50vw;
  object-fit: contain; object-position: bottom;
  filter: drop-shadow(0 0 30px rgba(0,240,255,0.3));
  transition: transform 0.6s, opacity 0.6s;
}
#sprite-img.enter-left { transform: translateX(-100px); opacity: 0; }
#sprite-img.enter-right { transform: translateX(100px); opacity: 0; }
#sprite-img.visible { transform: translateX(0); opacity: 1; }
#sprite-img.glitch-sprite {
  animation: glitch-sprite 0.15s infinite;
}
@keyframes glitch-sprite {
  0% { transform: translate(0); filter: drop-shadow(0 0 30px rgba(0,240,255,0.3)); }
  33% { transform: translate(-5px, 3px); filter: drop-shadow(5px 0 rgba(255,0,170,0.5)); }
  66% { transform: translate(5px, -3px); filter: drop-shadow(-5px 0 rgba(0,255,136,0.5)); }
  100% { transform: translate(0); filter: drop-shadow(0 0 30px rgba(0,240,255,0.3)); }
}

/* Scanlines */
#scanlines {
  position: absolute; inset: 0; z-index: 3;
  pointer-events: none; opacity: 0.06;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px, rgba(0,0,0,0.3) 2px, rgba(0,0,0,0.3) 4px
  );
}

/* Text panel */
#text-panel {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 10;
  background: linear-gradient(transparent, var(--panel-bg) 20%, var(--panel-bg));
  padding: 30px 40px 35px;
  min-height: 220px;
  cursor: pointer;
  border-top: 1px solid rgba(0,240,255,0.15);
  box-shadow: 0 -10px 40px rgba(0,0,0,0.6);
  transition: opacity 0.3s;
  text-align: center;
}
#text-panel:hover { border-top-color: rgba(0,240,255,0.3); }

#name-tag {
  font-size: 16px; font-weight: 700; letter-spacing: 3px;
  text-transform: uppercase; margin-bottom: 12px;
  display: inline-block; padding: 4px 16px;
  border-left: 2px solid var(--cyan);
  transition: color 0.3s, border-color 0.3s;
}
#name-tag.kira { color: var(--cyan); border-color: var(--cyan); }
#name-tag.raven { color: var(--magenta); border-color: var(--magenta); }
#name-tag.zero { color: var(--name-zero); border-color: var(--name-zero); }
/* Novel-defined character classes injected via JS */
#name-tag.narrator { color: #888; border-color: #555; font-style: italic; }

#dialogue-text {
  font-size: 18px; line-height: 1.7; color: var(--text);
  max-width: 800px; margin: 0 auto;
  letter-spacing: 0.5px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.8);
}

#click-hint {
  position: absolute; bottom: 12px; right: 24px;
  font-size: 11px; color: rgba(0,240,255,0.4);
  letter-spacing: 2px; animation: pulse-hint 2s infinite;
}
@keyframes pulse-hint {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

/* Choices */
#choices-panel {
  position: absolute; bottom: 220px; left: 0; right: 0; z-index: 11;
  display: flex; flex-direction: column; align-items: center;
  gap: 10px; padding: 0 40px 20px; display: none;
}
#choices-panel.active { display: flex; }

.choice-btn {
  width: 100%; max-width: 550px; padding: 14px 24px;
  font-size: 15px; color: var(--text); letter-spacing: 1px;
  background: rgba(5,5,20,0.85);
  border: 1px solid rgba(0,240,255,0.3);
  cursor: pointer; transition: all 0.3s;
  text-align: center; backdrop-filter: blur(8px);
}
.choice-btn:hover {
  background: rgba(0,240,255,0.12);
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(0,240,255,0.2);
  color: var(--cyan); transform: scale(1.02);
}

/* Title screen */
#title-screen {
  position: absolute; inset: 0; z-index: 100;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: var(--dark);
  transition: opacity 1s;
}
#title-screen.hidden { opacity: 0; pointer-events: none; }

#title-text {
  font-size: 42px; font-weight: 300; letter-spacing: 8px;
  color: var(--cyan); text-align: center;
  text-shadow: 0 0 30px rgba(0,240,255,0.5), 0 0 60px rgba(0,240,255,0.2);
  margin-bottom: 8px;
}
#title-sub {
  font-size: 15px; color: var(--magenta); letter-spacing: 5px;
  margin-bottom: 50px; opacity: 0.8;
}
#start-btn {
  padding: 16px 48px; font-size: 16px; letter-spacing: 4px;
  color: var(--cyan); background: transparent;
  border: 1px solid rgba(0,240,255,0.4);
  cursor: pointer; transition: all 0.4s;
}
#start-btn:hover {
  background: rgba(0,240,255,0.1);
  box-shadow: 0 0 30px rgba(0,240,255,0.3);
}

/* Ending screen */
#ending-screen {
  position: absolute; inset: 0; z-index: 100;
  display: none; flex-direction: column;
  align-items: center; justify-content: center;
  background: rgba(5,5,20,0.95);
  text-align: center; padding: 40px;
}
#ending-screen.active { display: flex; }
#ending-title {
  font-size: 36px; letter-spacing: 6px; margin-bottom: 20px;
}
#ending-text {
  font-size: 16px; color: var(--text); max-width: 500px;
  line-height: 1.8; margin-bottom: 40px; opacity: 0.8;
}
#restart-btn {
  padding: 12px 36px; font-size: 14px; letter-spacing: 3px;
  color: var(--cyan); background: transparent;
  border: 1px solid rgba(0,240,255,0.3);
  cursor: pointer; transition: all 0.3s;
}
#restart-btn:hover {
  background: rgba(0,240,255,0.1);
  box-shadow: 0 0 20px rgba(0,240,255,0.3);
}

/* Audio icons (top-right) */
#audio-icons {
  position: absolute; top: 14px; right: 14px; z-index: 50;
  display: flex; gap: 8px; transition: opacity 0.4s;
}
#audio-icons.hidden { opacity: 0; pointer-events: none; }
.audio-icon {
  width: 38px; height: 38px; border-radius: 6px;
  background: rgba(5,5,20,0.75); border: 1px solid rgba(0,240,255,0.25);
  color: var(--cyan); font-size: 17px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.3s; backdrop-filter: blur(6px);
  line-height: 1; user-select: none;
}
.audio-icon svg {
  width: 16px; height: 16px; stroke: var(--cyan); fill: none;
  stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
  transition: stroke 0.3s;
}
.audio-icon:hover { background: rgba(0,240,255,0.12); border-color: var(--cyan); }
.audio-icon.muted { border-color: rgba(255,255,255,0.08); }
.audio-icon.muted svg { stroke: rgba(255,255,255,0.2); }
.audio-icon.active { background: rgba(0,240,255,0.15); border-color: var(--cyan); box-shadow: 0 0 12px rgba(0,240,255,0.3); }

/* Save slots on title screen */
#save-slots-ui {
  margin-bottom: 24px;
  width: 100%; max-width: 360px;
}
#save-slots {
  display: flex; flex-direction: column; gap: 8px;
}
.save-slot {
  padding: 10px 16px;
  background: rgba(5,5,20,0.6);
  border: 1px solid rgba(255,255,255,0.1);
  cursor: pointer; transition: all 0.3s;
  display: flex; flex-direction: column; gap: 2px;
  border-radius: 4px;
}
.save-slot:hover {
  border-color: rgba(0,240,255,0.3);
  background: rgba(0,240,255,0.05);
}
.save-slot.active {
  border-color: var(--cyan);
  box-shadow: 0 0 10px rgba(0,240,255,0.15);
}
.slot-num {
  font-size: 11px; letter-spacing: 2px;
  color: rgba(0,240,255,0.5);
}
.slot-info {
  font-size: 12px; color: rgba(255,255,255,0.4);
}

/* Backlog panel */
#backlog-panel {
  position: absolute; inset: 0; z-index: 90;
  background: rgba(5,5,20,0.95); backdrop-filter: blur(8px);
  display: flex; flex-direction: column;
  opacity: 0; pointer-events: none; transition: opacity 0.25s;
}
#backlog-panel.open { opacity: 1; pointer-events: auto; }
#backlog-header {
  font-size: 12px; letter-spacing: 3px; color: var(--cyan);
  text-align: center; padding: 20px 0 12px;
  border-bottom: 1px solid rgba(0,240,255,0.1);
  opacity: 0.7;
}
#backlog-list {
  flex: 1; overflow-y: auto; padding: 12px 24px;
  scroll-behavior: smooth;
}
.backlog-entry {
  display: flex; flex-direction: column; gap: 4px;
  padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.03);
}
.backlog-name {
  font-size: 10px; letter-spacing: 2px;
  color: rgba(0,240,255,0.4); text-transform: uppercase;
}
.backlog-text {
  font-size: 14px; color: rgba(224,224,240,0.7); line-height: 1.6;
}
.backlog-empty {
  text-align: center; color: rgba(255,255,255,0.2);
  padding: 40px 0; font-size: 14px;
}
#backlog-close {
  text-align: center; padding: 14px 0 24px;
  font-size: 12px; letter-spacing: 2px;
  color: rgba(255,255,255,0.3); cursor: pointer;
  border-top: 1px solid rgba(0,240,255,0.1);
  transition: color 0.3s;
}
#backlog-close:hover { color: var(--cyan); }

/* Audio settings modal */
#audio-modal-overlay {
  position: absolute; inset: 0; z-index: 80;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.25s;
}
#audio-modal-overlay.open { opacity: 1; pointer-events: auto; }
#audio-modal {
  background: rgba(8,8,30,0.95); border: 1px solid rgba(0,240,255,0.25);
  padding: 28px 32px; min-width: 280px; text-align: center;
  box-shadow: 0 0 40px rgba(0,240,255,0.1);
}
#audio-modal h3 {
  font-size: 13px; letter-spacing: 3px; color: var(--cyan);
  margin-bottom: 20px; font-weight: 400;
}
#audio-modal .row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; margin-bottom: 14px;
}
#audio-modal label {
  font-size: 11px; color: rgba(0,240,255,0.5); letter-spacing: 2px;
  white-space: nowrap;
}
#modal-volume-slider {
  -webkit-appearance: none; flex: 1; height: 3px;
  background: rgba(0,240,255,0.3); outline: none; cursor: pointer;
}
#modal-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px;
  background: var(--cyan); border-radius: 50%; cursor: pointer;
}
#modal-volume-val {
  font-size: 13px; color: var(--cyan); min-width: 32px; text-align: right;
}
#audio-modal .modal-btn {
  width: 100%; padding: 10px; margin-top: 6px;
  font-size: 11px; letter-spacing: 2px;
  color: rgba(255,255,255,0.5); background: none;
  border: 1px solid rgba(255,255,255,0.15); cursor: pointer;
  transition: all 0.3s;
}
#audio-modal .modal-btn:hover {
  color: var(--cyan); border-color: var(--cyan);
}

/* Continue button on title screen */
#continue-btn {
  padding: 14px 40px; font-size: 15px; letter-spacing: 4px;
  color: rgba(255,255,255,0.6); background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  cursor: pointer; transition: all 0.4s;
  margin-top: 12px;
}
#continue-btn:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}

/* Choice Journal on ending screen */
#journal-panel {
  display: none;
  max-width: 500px; width: 100%;
  margin: 0 auto 24px;
  text-align: left;
  border-top: 1px solid rgba(0,240,255,0.15);
  padding-top: 16px;
}

#journal-header {
  font-size: 11px; letter-spacing: 3px;
  color: var(--cyan); margin-bottom: 12px;
  text-align: center; opacity: 0.7;
}

.journal-entry {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 6px 0; font-size: 12px; color: var(--text);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  opacity: 0.7; transition: opacity 0.3s;
}
.journal-entry:hover { opacity: 1; }

.journal-num {
  color: var(--cyan); font-weight: 700;
  min-width: 20px; opacity: 0.5;
}
.journal-text {
  flex: 1; font-style: italic; line-height: 1.5;
}
.journal-time {
  color: rgba(255,255,255,0.2); font-size: 10px;
  white-space: nowrap;
}

/* Auto-mode active */
#auto-icon.active {
  background: rgba(0,240,255,0.15);
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,240,255,0.3);
}
#auto-icon.active svg {
  fill: var(--cyan);
}

/* Backlog panel */
#backlog-overlay {
  position: absolute; inset: 0; z-index: 90;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(2px);
  opacity: 0; pointer-events: none; transition: opacity 0.25s;
}
#backlog-overlay.open { opacity: 1; pointer-events: auto; }

#backlog-panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 420px; max-width: 85vw;
  background: rgba(5,5,18,0.96);
  border-left: 1px solid rgba(0,240,255,0.15);
  display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform 0.3s ease;
}
#backlog-overlay.open #backlog-panel { transform: translateX(0); }

#backlog-inner {
  flex: 1; overflow-y: auto; padding: 16px 20px;
  scroll-behavior: smooth;
}
#backlog-header {
  font-size: 11px; letter-spacing: 3px;
  color: var(--cyan); margin-bottom: 16px;
  text-align: center; opacity: 0.6;
}

.blog-entry {
  margin-bottom: 12px; padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 13px; line-height: 1.6;
}
.blog-name {
  display: inline-block; font-size: 11px; font-weight: 700;
  letter-spacing: 1px; margin-right: 8px;
  padding: 1px 8px; border-left: 2px solid;
}
.blog-text { color: var(--text); opacity: 0.75; }

/* Save slots on title screen */
#save-slots {
  display: flex; flex-direction: column; gap: 8px;
  width: 100%; max-width: 340px; margin-bottom: 24px;
}
.save-slot {
  padding: 10px 14px; border: 1px solid rgba(255,255,255,0.08);
  cursor: default; transition: all 0.3s;
  text-align: left;
}
.save-slot.filled {
  border-color: rgba(0,240,255,0.2); cursor: pointer;
}
.save-slot.filled:hover {
  background: rgba(0,240,255,0.06);
  border-color: var(--cyan);
}
.save-slot.empty { opacity: 0.25; }
.slot-label {
  display: block; font-size: 10px; letter-spacing: 2px;
  color: var(--cyan); margin-bottom: 2px; opacity: 0.5;
}
.slot-date {
  display: block; font-size: 11px; color: rgba(255,255,255,0.3);
}
.slot-preview {
  display: block; font-size: 10px; color: rgba(255,255,255,0.15);
  margin-top: 3px; overflow: hidden; white-space: nowrap;
  text-overflow: ellipsis; max-width: 280px;
}

/* Speed slider in modal */
#modal-speed-slider {
  -webkit-appearance: none; flex: 1; height: 3px;
  background: rgba(0,240,255,0.3); outline: none; cursor: pointer;
}
#modal-speed-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px;
  background: var(--cyan); border-radius: 50%; cursor: pointer;
}
#modal-speed-val {
  font-size: 13px; color: var(--cyan); min-width: 24px; text-align: right;
}

/* Backlog responsive */
@media (max-width: 768px) {
  #title-text { font-size: 28px; letter-spacing: 4px; }
  #dialogue-text { font-size: 15px; }
  #text-panel { padding: 20px 20px 28px; min-height: 180px; }
  #name-tag { font-size: 13px; }
  .choice-btn { font-size: 13px; padding: 12px 16px; }
  #sprite-img { max-height: 60vh; max-width: 60vw; }
  #audio-icons { top: 8px; right: 8px; gap: 5px; }
  .audio-icon { width: 32px; height: 32px; }
  .audio-icon svg { width: 14px; height: 14px; }
  #save-slots-ui { max-width: 280px; }
  .save-slot { padding: 8px 12px; }
  .backlog-text { font-size: 13px; }
  #backlog-list { padding: 10px 16px; }
}