/* ===========================
   フォーム共通スタイル
   =========================== */
.form-input {
  display: block;
  width: 100%;
  border: 1.5px solid #e5e7eb;
  border-radius: 0.625rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  background-color: #fff;
  color: #111827;
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

select.form-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

/* ===========================
   カード
   =========================== */
.card {
  background: #fff;
  border-radius: 0.875rem;
  padding: 1rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07), 0 0 0 1px rgba(0, 0, 0, 0.04);
}

.section-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: #374151;
  margin-bottom: 0.75rem;
}

.field-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: #6b7280;
  margin-bottom: 0.125rem;
}

.copy-btn {
  font-size: 0.7rem;
  color: #3b82f6;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 0.375rem;
  background: #eff6ff;
  transition: background 0.1s;
}

.copy-btn:active {
  background: #dbeafe;
}

/* ===========================
   タブナビ
   =========================== */
.tab-btn {
  border-bottom: 3px solid transparent;
  color: #9ca3af;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: color 0.15s, border-color 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.tab-btn.active {
  border-bottom-color: #ef4444;
  color: #ef4444;
  font-weight: 700;
}

/* ===========================
   タブコンテンツのフェードイン
   =========================== */
.tab-content {
  animation: fadeSlide 0.18s ease-out;
}

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

/* ===========================
   ボタン共通
   =========================== */
button {
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
  user-select: none;
}

button:active {
  opacity: 0.85;
  transform: scale(0.98);
}

/* ===========================
   テキスト行数制限
   =========================== */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===========================
   iOS セーフエリア対応
   =========================== */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  body {
    padding-bottom: max(env(safe-area-inset-bottom), 8px);
  }
}

/* ===========================
   スムーズスクロール
   =========================== */
html {
  scroll-behavior: smooth;
}

/* ===========================
   モーダルアニメーション
   =========================== */
#mercari-modal:not(.hidden) {
  animation: modalUp 0.25s cubic-bezier(0.32, 0.72, 0, 1);
}

@keyframes modalUp {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

#mercari-modal > div {
  animation: slideUp 0.28s cubic-bezier(0.32, 0.72, 0, 1);
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

/* ===========================
   数値入力（スピナー非表示）
   =========================== */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}