/* ===================================
   Komunikace - Layout
   =================================== */

.communication-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

/* ===================================
   Form Cards (Rozbalovací sekce)
   =================================== */

.form-card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-base);
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.form-card:hover {
  box-shadow: var(--shadow-lg);
}

.form-card-header {
  padding: var(--spacing-lg);
  cursor: pointer;
  position: relative;
  transition: background var(--transition-base);
  user-select: none;
}

.form-card-header:hover {
  background: var(--bg-secondary);
}

.form-card.is-open .form-card-header {
  background: transparent;
  pointer-events: auto;
}

.form-card.is-open .form-card-header:hover {
  background: transparent;
}

.form-card-header .section-title {
  font-size: 1.125rem;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
  border-bottom: none;
  padding-bottom: 0;
  padding-right: 40px;
}

.info-description {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin: 0;
  padding-right: 40px;
}

.toggle-form {
  position: absolute;
  right: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}

.icon-chevron {
  width: 24px;
  height: 24px;
  color: var(--text-light);
  transition: transform var(--transition-base);
}

.form-card.is-open .icon-chevron {
  transform: rotate(180deg);
}

.toggle-form:hover .icon-chevron {
  color: var(--accent);
}

.form-card-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.3s ease-out;
  padding: 0 var(--spacing-lg);
}

.form-card.is-open .form-card-content {
  max-height: 1000px;
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
  transition: max-height 0.4s ease-in, padding 0.3s ease-in;
}

/* ===================================
   Formuláře
   =================================== */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
}

.label-optional {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-light);
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--text-dark);
  transition: all var(--transition-base);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-light);
  opacity: 0.6;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.form-group textarea {
  min-height: 120px;
}

.btn-submit {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--transition-base);
  margin-top: var(--spacing-sm);
}

.btn-submit:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}

.btn-submit:active {
  transform: translateY(0);
}

/* ===================================
   Prefix předvolby u telefonu
   =================================== */

.input-prefix-wrapper {
  display: flex;
  align-items: stretch;
}

.input-prefix {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary, #f5f5f5);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--text-light);
  pointer-events: none;
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.input-prefix-wrapper input[type="tel"] {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  flex: 1;
  min-width: 0;
}

.input-prefix-wrapper input[type="tel"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

/* ===================================
   Alert boxy
   =================================== */

.alert {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 18px;
  font-size: 0.95rem;
  line-height: 1.5;
  animation: alertFadeIn 0.3s ease;
}

.alert-success {
  background: #edfaf3;
  border: 1px solid #6fcf97;
  color: #1a6b3a;
}

.alert-error {
  background: #fff0f0;
  border: 1px solid #e57373;
  color: #8b0000;
}

.alert-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.alert-text strong {
  display: block;
  margin-bottom: 2px;
}

@keyframes alertFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===================================
   Validace – chybná pole
   =================================== */

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #e57373;
  background: #fff8f8;
}

.field-error {
  display: block;
  margin-top: 4px;
  font-size: 0.82rem;
  color: #c0392b;
}

/* ===================================
   Animace při načítání stránky
   =================================== */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.form-card:nth-child(1) { animation-delay: 0.1s; }
.form-card:nth-child(2) { animation-delay: 0.2s; }
.form-card:nth-child(3) { animation-delay: 0.3s; }
.form-card:nth-child(4) { animation-delay: 0.4s; }

/* ===================================
   Mobilní optimalizace
   =================================== */

@media (max-width: 768px) {
  .communication-layout {
    gap: var(--spacing-md);
  }

  .form-card-header {
    padding: var(--spacing-md);
  }

  .form-card-header .section-title {
    font-size: 1rem;
    padding-right: 36px;
  }

  .info-description {
    font-size: 0.85rem;
    padding-right: 36px;
  }

  .toggle-form {
    right: var(--spacing-md);
  }

  .icon-chevron {
    width: 20px;
    height: 20px;
  }

  .form-card-content {
    padding: 0 var(--spacing-md);
  }

  .form-card.is-open .form-card-content {
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
  }

  .contact-form {
    gap: var(--spacing-md);
  }

  .form-group input,
  .form-group textarea {
    font-size: 16px; /* Prevence zoomu na iOS */
  }

  .btn-submit {
    padding: var(--spacing-md);
  }
}