/**
 * VPR 7 - Task 6: Decoding Messages (Fano Codes)
 * Специфичные стили для задания 6 (Декодирование сообщений)
 */

/* Импорт общих стилей */
@import url("vpr7-common.css");

/* ============================================
   Fano Toggle
   ============================================ */
.fano-toggle {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 12px;
  margin-bottom: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.fano-toggle-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 15px;
  cursor: pointer;
  background: rgba(102, 126, 234, 0.1);
}

.fano-toggle-title {
  font-weight: 600;
  color: #667eea;
}

.fano-toggle-icon {
  transition: transform 0.3s;
}

.fano-toggle.open .fano-toggle-icon {
  transform: rotate(180deg);
}

.fano-content {
  padding: 0 15px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s;
}

.fano-toggle.open .fano-content {
  padding: 15px;
  max-height: 500px;
}

/* ============================================
   Code Table
   ============================================ */
.code-table-container {
  overflow-x: auto;
  margin: 15px 0;
}

.code-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: 8px;
  overflow: hidden;
}

.code-table th,
.code-table td {
  padding: 12px 15px;
  text-align: center;
  border: 1px solid #e0e0e0;
}

.code-table th {
  background: linear-gradient(145deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
}

.code-table td {
  font-family: "Consolas", monospace;
  font-size: 1rem;
  color: #333;
}

/* ============================================
   Answer Section
   ============================================ */
.answer-section {
  margin: 15px 0;
}

.answer-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #333;
}

.answer-input {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1.1rem;
  transition: all 0.2s;
}

.answer-input:focus {
  outline: none;
  border-color: #667eea;
}

.answer-input.correct {
  border-color: #38ef7d;
  background: rgba(17, 153, 142, 0.1);
}

.answer-input.incorrect {
  border-color: #f45c43;
  background: rgba(235, 51, 73, 0.1);
}

/* ============================================
   Hint Steps
   ============================================ */
#hintSteps {
  line-height: 1.6;
}

.hint-step {
  margin: 8px 0;
  padding: 8px 12px;
  background: #f8f9fa;
  border-radius: 6px;
}

.code-part {
  font-family: "Consolas", monospace;
  background: rgba(102, 126, 234, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  color: #667eea;
}

.letter-part {
  font-weight: bold;
  color: #11998e;
}

.result {
  display: block;
  margin-top: 10px;
  padding: 10px;
  background: linear-gradient(145deg, #11998e 0%, #38ef7d 100%);
  color: white;
  border-radius: 8px;
  text-align: center;
  font-size: 1.1rem;
}

/* ============================================
   Message Container (Interactive Decoding)
   ============================================ */
.message-container {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: nowrap;
  overflow-x: auto;
  margin: 15px 0;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
  font-family: "Consolas", "Courier New", monospace;
  white-space: nowrap;
}

.message-char {
  font-size: 1.4rem;
  font-weight: bold;
  color: #333;
  padding: 5px 2px;
  letter-spacing: 0.1em;
}

.message-divider-slot {
  width: 20px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
}

.message-divider-slot::after {
  content: "";
  position: absolute;
  width: 2px;
  height: 0;
  background: #667eea;
  transition: height 0.2s;
}

.message-divider-slot:hover::after {
  height: 20px;
  background: #667eea;
}

.message-divider-slot.has-divider::after {
  height: 30px;
  background: #667eea;
}

.divider-hint {
  text-align: center;
  font-size: 0.85rem;
  color: #666;
  margin: 10px 0;
  font-style: italic;
}

/* ============================================
   Print Styles (PDF Export)
   ============================================ */
@media print {
  .message-container {
    display: block;
    text-align: center;
    background: white;
    padding: 10px 0;
  }

  .message-char {
    display: inline-block;
    font-size: 1.6rem;
    padding: 5px 18px;
    letter-spacing: 0.8em;
    margin-right: 1em;
  }

  .message-divider-slot {
    display: none;
  }

  .divider-hint {
    display: none;
  }
}