/* ─────────────────────────────────────────────────────
   DECODE — App Screen Styles (app.html)
   Modern Bold Design
   ───────────────────────────────────────────────────── */

.app-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 5rem 2.5rem 8rem;
}

.app-header {
  margin-bottom: 3rem;
}

.app-title {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--black);
  margin-bottom: 0.75rem;
}

.app-sub {
  font-size: 1.0625rem;
  color: var(--accent-gray);
  font-weight: 400;
}

/* ── Field label ── */
.field-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent-gray);
  margin-bottom: 0.875rem;
}

/* ── Textarea ── */
textarea {
  width: 100%;
  min-height: 240px;
  background: var(--white);
  border: 2px solid var(--black);
  border-radius: var(--radius-sm);
  padding: 1.5rem 1.75rem;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--black);
  resize: vertical;
  outline: none;
  transition: all 0.2s;
  font-weight: 400;
}

textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}
textarea::placeholder { color: var(--accent-gray); font-style: italic; font-weight: 400; }

/* ── Type selector ── */
.type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.type-btn {
  background: var(--white);
  border: 2px solid var(--black);
  border-radius: var(--radius-sm);
  padding: 1.5rem 1.5rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--sans);
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.type-btn:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.type-btn.active {
  border-color: var(--accent);
  background: var(--accent-light);
  border-width: 3px;
}

.type-tag {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--black);
  display: block;
}

.type-btn.active .type-tag { color: var(--accent); }

.type-desc {
  font-size: 0.8125rem;
  color: var(--accent-gray);
  font-weight: 400;
  line-height: 1.5;
  display: block;
}

/* ── Decode button ── */
.decode-btn {
  margin-top: 2.5rem;
  width: 100%;
  background: var(--black);
  color: var(--beige);
  border: 3px solid var(--black);
  border-radius: var(--radius-sm);
  padding: 1.25rem 2.5rem;
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.875rem;
  transition: all 0.2s var(--ease);
}

.decode-btn:hover:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.decode-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.decode-arrow {
  font-family: var(--sans);
  font-size: 1rem;
  transition: transform 0.2s var(--ease);
}

.decode-btn:hover:not(:disabled) .decode-arrow { transform: translateX(5px); }

/* ── Loader ── */
.loader {
  display: none;
  align-items: center;
  gap: 1rem;
  padding: 2rem 0 0;
  font-size: 0.9375rem;
  color: var(--black);
  font-weight: 500;
  font-style: italic;
}

.loader.active { display: flex; }

.loader-dots {
  display: flex;
  gap: 6px;
}

.loader-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: dotPulse 1.2s ease-in-out infinite;
}

.loader-dots span:nth-child(2) { animation-delay: 0.18s; }
.loader-dots span:nth-child(3) { animation-delay: 0.36s; }

@keyframes dotPulse {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50%       { opacity: 1;    transform: scale(1.2);   }
}

/* ── Error ── */
.error-msg {
  margin-top: 1.5rem;
  background: #FFE8E0;
  border: 2px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--black);
  font-weight: 500;
}

/* ── Back button ── */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gray);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-bottom: 2.5rem;
  transition: all 0.2s;
  font-weight: 600;
}

.back-btn:hover {
  color: var(--black);
  transform: translateX(-3px);
}

/* ── Input echo ── */
.input-echo {
  background: var(--white);
  border-left: 4px solid var(--accent);
  padding: 1.25rem 1.75rem;
  margin-bottom: 3rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.0625rem;
  color: var(--black);
  line-height: 1.7;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  max-height: 80px;
  overflow: hidden;
  font-weight: 500;
  -webkit-mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
}

/* ── Clarity report ── */
.report-section {
  padding: 2.5rem 0;
  border-bottom: 2px solid var(--beige-dark);
  opacity: 0;
  transform: translateY(12px);
  animation: sectionReveal 0.45s var(--ease) forwards;
}

.report-section:last-child { border-bottom: none; }

.report-section:nth-child(1) { animation-delay: 0.1s; }
.report-section:nth-child(2) { animation-delay: 0.22s;  }
.report-section:nth-child(3) { animation-delay: 0.34s; }
.report-section:nth-child(4) { animation-delay: 0.46s; }

@keyframes sectionReveal {
  to { opacity: 1; transform: translateY(0); }
}

.report-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.report-marker {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  flex-shrink: 0;
}

.report-title {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent-gray);
}

.report-body {
  padding-left: 3rem;
  font-size: 1.0625rem;
  color: var(--black);
  line-height: 1.8;
  font-weight: 400;
}

.report-body ul {
  list-style: none;
  padding: 0;
}

.report-body li {
  padding: 0.5rem 0 0.5rem 1.5rem;
  position: relative;
}

.report-body li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 700;
  top: 0.5rem;
}

.report-success {
  font-family: var(--serif);
  font-size: 1.375rem;
  font-style: italic;
  font-weight: 500;
  color: var(--black);
  line-height: 1.65;
}

/* ── App screen animations ── */
.app-screen { animation: fadeSlide 0.4s var(--ease) both; }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0);    }
}

@media (max-width: 600px) {
  .app-wrap { padding: 3rem 1.5rem 6rem; }
  .type-grid { grid-template-columns: 1fr; }
  
  .app-title {
    font-size: 2.25rem;
  }
  
  .decode-btn {
    padding: 1.125rem 2rem;
    font-size: 1.25rem;
  }
  
  .report-body {
    padding-left: 0;
  }
  
  .report-header {
    margin-bottom: 1.25rem;
  }
}