@font-face {
  font-family: "VijayaDV";
  src: url("../fonts/VijayaDV.woff2") format("woff2"),
       url("../fonts/VijayaDV.TTF") format("truetype");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

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

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: #f0f2f5;
  color: #1a1a2e;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  width: 100%;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  color: #fff;
  padding: 2rem 1rem 1.5rem;
  text-align: center;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

header p {
  margin-top: 0.4rem;
  font-size: 0.95rem;
  opacity: 0.8;
}

main {
  width: 100%;
  max-width: 1200px;
  padding: 2rem 1rem;
  flex: 1;
}

.card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #6b7280;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.legend {
  display: inline-flex;
  gap: 0.5rem;
  margin-left: auto;
  font-size: 0.7rem;
  text-transform: none;
  letter-spacing: normal;
}

textarea {
  width: 100%;
  min-height: 180px;
  border: 1.5px solid #d1d5db;
  border-radius: 8px;
  padding: 1rem;
  font-size: 1.15rem;
  line-height: 1.8;
  resize: vertical;
  font-family: "Noto Sans Devanagari", "Mangal", serif;
  color: #1a1a2e;
  transition: border-color 0.2s;
}

textarea:focus {
  outline: none;
  border-color: #0f3460;
  box-shadow: 0 0 0 3px rgba(15, 52, 96, 0.12);
}

textarea::placeholder {
  color: #9ca3af;
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 1rem;
}

.btn-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

button {
  padding: 0.6rem 1.4rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

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

.btn-primary {
  background: #0f3460;
  color: #fff;
}

.btn-primary:hover {
  background: #1a4a7a;
}

.btn-secondary {
  background: #e5e7eb;
  color: #374151;
}

.btn-secondary:hover {
  background: #d1d5db;
}

.btn-accent {
  background: #e0e7ff;
  color: #1e40af;
}

.btn-accent:hover {
  background: #c7d2fe;
}

.output-box {
  min-height: 120px;
  padding: 0.5rem 1rem;
  background-color: #f9fafb;
  border: 1.5px solid #e5e7eb;
  border-radius: 8px;
  font-size: 1.15rem;
  color: #1a1a2e;
  word-wrap: break-word;
}

.output-table {
  width: 100%;
  border-collapse: collapse;
}

.output-table tr {
  border-bottom: 1px solid #e5e5e5;
}

.output-table tr:last-child {
  border-bottom: none;
}

.line-check {
  width: 1.75rem;
  padding: 0 0.25rem 0 0;
  vertical-align: middle;
  text-align: center;
  user-select: none;
}

.line-check input[type="checkbox"] {
  cursor: pointer;
  width: 0.95rem;
  height: 0.95rem;
  accent-color: #0f3460;
}

.abbr-line {
  opacity: 0.85;
}

.line-num {
  width: 2.5rem;
  padding: 0 0.75rem 0 0;
  text-align: right;
  vertical-align: middle;
  font-size: 0.8rem;
  font-weight: 600;
  color: #9ca3af;
  font-variant-numeric: tabular-nums;
  user-select: none;
  white-space: nowrap;
}

.line-content {
  padding: 0;
  line-height: 2.85;
  white-space: pre-wrap;
  word-wrap: break-word;
}

#iast-output {
  font-size: 1.725rem;
}

.output-box:empty::before {
  content: "Output will appear here...";
  color: #9ca3af;
  font-style: italic;
}

.output-sanskrit .line-content {
  font-family: "VijayaDV", "Noto Sans Devanagari", "Mangal", serif;
  font-size: 1.3rem;
  font-feature-settings: "mark" 1, "mkmk" 1, "abvm" 1, "blwm" 1, "liga" 1, "clig" 1;
}

.accent-anudatta {
  background: #dbeafe;
  color: #1e40af;
  border-radius: 3px;
  padding: 0 2px;
  position: relative;
  top: 0.2em;
}

.accent-svarita {
  background: #fee2e2;
  color: #b91c1c;
  border-radius: 3px;
  padding: 0 2px;
  position: relative;
  top: -0.2em;
}

.accent-dirgha-svarita {
  background: #fca5a5;
  color: #7f1d1d;
  border-radius: 3px;
  padding: 0 2px;
  font-weight: 600;
  position: relative;
  top: -0.35em;
}

.avagraha {
  font-family: "VijayaDV", "Noto Sans Devanagari", serif;
  color: #9ca3af;
}

.jihvamuliya {
  font-family: "VijayaDV", serif;
}

.gum-kara {
  font-family: "Georgia", "Times New Roman", serif;
  font-style: italic;
  font-weight: 600;
  color: #6d28d9;
}

footer {
  width: 100%;
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
  color: #9ca3af;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 1.3rem;
  }

  textarea {
    min-height: 140px;
    font-size: 1rem;
  }

  .output-box {
    font-size: 1rem;
  }

  #iast-output {
    font-size: 1.5rem;
  }

  .btn-row {
    flex-direction: column;
  }

  button {
    width: 100%;
  }
}