/* Reset and Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #e8e4dd;
}

/* Container */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem;
}

/* Header */
header h1 {
  text-align: center;
  color: #2a2520;
  margin-bottom: 1rem;
  font-family: Georgia, 'Palatino Linotype', Palatino, serif;
  letter-spacing: 0.02em;
}

/* Instructions */
.info {
  background-color: #faf8f3;
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid #e0dbd3;
}

.info h3 {
  margin-bottom: 0.5rem;
  color: #2a2520;
}

.info p {
  color: #555;
}

/* Upload Form */
.upload {
  margin-bottom: 1.5rem;
}

.upload form {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.upload textarea {
  flex: 1;
  min-width: 200px;
  min-height: 80px;
  padding: 0.5rem;
  border: 1px solid #c8c3ba;
  border-radius: 4px;
  font-family: Georgia, 'Palatino Linotype', Palatino, serif;
  font-size: 1rem;
  resize: vertical;
  background-color: #faf8f3;
  color: #333;
}

.upload textarea:focus {
  outline: none;
  border-color: #8a8279;
  box-shadow: 0 0 0 2px rgba(138, 130, 121, 0.2);
}

.upload button {
  padding: 0.5rem 1.5rem;
  background: linear-gradient(to bottom, #5a7a9a, #4a6a8a);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s, transform 0.1s;
}

.upload button:hover {
  background: linear-gradient(to bottom, #4a6a8a, #3a5a7a);
}

.upload button:active {
  transform: scale(0.97);
}

/* Main Grid - Story and Poem side by side */
.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .main-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Story Section - Paper aesthetic */
.story-section {
  background-color: #faf8f3;
  padding: 1rem;
  border-radius: 4px;
  border: 1px solid #e0dbd3;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.06),
    inset 0 0 40px rgba(0, 0, 0, 0.02);
  /* Paper texture via layered gradients */
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 27px,
      rgba(0, 0, 0, 0.015) 27px,
      rgba(0, 0, 0, 0.015) 28px
    ),
    linear-gradient(
      135deg,
      rgba(200, 180, 150, 0.06) 0%,
      transparent 50%,
      rgba(200, 180, 150, 0.04) 100%
    );
  background-color: #faf8f3;
}

.story-section h3 {
  padding-top: 0;
  margin-bottom: 0.5rem;
  color: #2a2520;
  font-family: Georgia, 'Palatino Linotype', Palatino, serif;
}

.story-section .subtitle {
  font-weight: normal;
  font-size: 0.9rem;
  color: #8a8279;
}

.story {
  font-family: Georgia, 'Palatino Linotype', Palatino, serif;
  font-size: 18px;
  margin-top: 5px;
  line-height: 2;
  color: #2a2520;
}

/* Poem Section */
.poem-section {
  padding: 1rem;
  background-color: #faf8f3;
  border-radius: 4px;
  border: 1px solid #e0dbd3;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.poem-section h3 {
  margin-bottom: 0.5rem;
  color: #2a2520;
  font-family: Georgia, 'Palatino Linotype', Palatino, serif;
}

.poem {
  font-family: Georgia, 'Palatino Linotype', Palatino, serif;
  font-size: 28px;
  line-height: 1.4;
  color: #2a2520;
}

/* Token Spans - Base styles for clickable elements */
span.token {
  opacity: 1;
  transition: opacity 0.5s ease-in-out, background 0.3s ease-in-out;
  border-radius: 3px;
  cursor: pointer;
  padding: 1px 2px;
  position: relative;
}

span.token:hover:not(.blocked):not(.faded) {
  background-color: rgba(255, 230, 0, 0.2);
}

/* Word tokens */
span.token.word {
  border-radius: 3px;
}

/* Punctuation tokens - slightly different style */
span.token.punctuation {
  border-radius: 2px;
  padding: 1px 1px;
}

span.token.punctuation:hover:not(.blocked):not(.faded) {
  background-color: rgba(255, 200, 100, 0.3);
}

/* Marked - selected for poem (highlighter effect) */
/* Yellow bg on element (no distortion); ragged edge on ::before */
.marked {
  background-color: rgba(255, 230, 0, 0.4);
  position: relative;
  border-radius: 2px;
  isolation: isolate;
}

.marked::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -4px;
  right: -4px;
  bottom: -2px;
  background-color: rgba(255, 230, 0, 0.25);
  filter: url(#highlighter-texture);
  border-radius: 2px;
  z-index: -1;
}

/* Blocked - marker blackout effect */
.blocked {
  background: linear-gradient(
    175deg,
    #111 0%,
    #1a1a1a 30%,
    #222 60%,
    #181818 100%
  );
  color: transparent;
  filter: url(#marker-texture);
  border-radius: 3px;
  transition: none;
  box-shadow:
    0 0 1px 0 rgba(0, 0, 0, 0.6),
    0 1px 2px -1px rgba(0, 0, 0, 0.3),
    inset 0 0 3px rgba(50, 50, 50, 0.4);
}

/* Blocked hover - no cursor change since it's blacked out */
.blocked:hover {
  cursor: default;
}

/* Faded - completely hidden */
.faded {
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  border-radius: 4px;
}

/* Marker stroke animation - sweeps left to right */
@keyframes marker-stroke {
  from {
    clip-path: inset(0 100% 0 0);
  }
  to {
    clip-path: inset(0 0 0 0);
  }
}

/* Marker reveal animation - sweeps right to left for unblocking */
@keyframes marker-reveal {
  from {
    clip-path: inset(0 0 0 0);
  }
  to {
    clip-path: inset(0 100% 0 0);
  }
}

/* Animation classes applied via JS */
.animate-in {
  animation: marker-stroke 0.15s ease-out forwards;
}

.animate-out {
  animation: marker-reveal 0.15s ease-in forwards;
}

/* Menu */
.menu {
  background: linear-gradient(to bottom, #d5d0c8, #cac5bc);
  padding: 1rem;
  border: 1px solid #b5b0a7;
  border-radius: 4px;
}

.menu p {
  margin-bottom: 0.5rem;
  color: #4a4540;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Secondary button row */
.buttons.secondary {
  margin-top: 0.5rem;
}

/* Buttons - polished */
.btn {
  border-radius: 6px;
  background: linear-gradient(to bottom, #faf8f3, #eae6df);
  border: 1px solid #b5b0a7;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.btn:hover {
  background: linear-gradient(to bottom, #f0ede6, #e0dbd3);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn:active {
  transform: scale(0.97);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0.1);
}

.btn.reset {
  background: linear-gradient(to bottom, #e04050, #c82333);
  color: white;
  border-color: #b51d2e;
}

.btn.reset:hover {
  background: linear-gradient(to bottom, #d03040, #b81d2d);
}

.btn.blockout {
  background: linear-gradient(to bottom, #444, #2a2a2a);
  color: white;
  border-color: #222;
}

.btn.blockout:hover {
  background: linear-gradient(to bottom, #555, #3a3a3a);
}

.btn.blockout:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn.clear {
  background: linear-gradient(to bottom, #ffd030, #e8b800);
  color: #333;
  border-color: #c8a000;
}

.btn.clear:hover {
  background: linear-gradient(to bottom, #f0c020, #d8a800);
}

/* Secondary action buttons - neutral muted gradient */
.btn.export,
.btn.import,
.btn.image,
.btn.share {
  background: linear-gradient(to bottom, #d8d4cc, #c8c4bb);
  color: #3a3530;
  border-color: #b0aba2;
}

.btn.export:hover,
.btn.import:hover,
.btn.image:hover,
.btn.share:hover {
  background: linear-gradient(to bottom, #ccc8c0, #bbb7ae);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(30, 28, 25, 0.92);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1000;
  max-width: 90vw;
  text-align: center;
}

.toast.show {
  opacity: 1;
}

/* Shared banner */
.shared-banner {
  background: linear-gradient(to right, #e8dfc8, #f0eadb);
  border: 1px solid #d5cdb8;
  border-radius: 4px;
  padding: 0.6rem 1rem;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #5a5040;
}

.banner-dismiss {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: #8a8279;
  padding: 0 0.25rem;
  line-height: 1;
}

.banner-dismiss:hover {
  color: #2a2520;
}

/* Headings */
h3 {
  padding-top: 1em;
}

/* Responsive */
@media (max-width: 600px) {
  .upload form {
    flex-direction: column;
  }

  .upload button {
    width: 100%;
  }

  .buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .poem {
    font-size: 22px;
  }
}