/* ===== リセット・基本設定 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #FF6B35;
    --primary-light: #FFF3E0;
    --accent: #4CAF50;
    --blue: #2196F3;
    --dark: #212121;
    --gray-text: #666666;
    --gray-light: #E0E0E0;
    --gray-bg: #F5F5F5;
    --white: #FFFFFF;
    --radius: 12px;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
    background: var(--gray-bg);
    color: var(--dark);
    line-height: 1.6;
    padding-top: 110px;
    padding-bottom: 70px;
    min-height: 100vh;
}

/* ===== ヘッダー ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.header-title {
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
}

.header-location {
    color: var(--white);
    font-size: 12px;
    opacity: 0.9;
}

/* ===== フィルターバー ===== */
.filter-bar {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    height: 44px;
    background: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 16px;
    z-index: 99;
    border-bottom: 1px solid var(--gray-light);
}

.filter-select {
    padding: 6px 12px;
    border: 1px solid var(--gray-light);
    border-radius: 20px;
    font-size: 12px;
    background: var(--white);
    color: var(--dark);
    outline: none;
}

.filter-select:focus {
    border-color: var(--primary);
}

/* ===== メインコンテンツ ===== */
.main-content {
    max-width: 480px;
    margin: 0 auto;
    padding: 16px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* ===== お得情報カード ===== */
.deal-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.deal-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.2s;
}

.deal-card:active {
    transform: scale(0.98);
}

.deal-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.deal-store-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--dark);
}

.deal-distance {
    font-size: 11px;
    color: var(--primary);
    font-weight: 600;
}

.deal-product {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.deal-price-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 6px;
}

.deal-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.deal-original-price {
    font-size: 12px;
    color: var(--gray-text);
    text-decoration: line-through;
}

.deal-badge {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    margin-right: 4px;
}

.deal-badge-green {
    background: var(--accent);
}

.deal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--gray-bg);
}

.deal-deadline {
    font-size: 11px;
    color: var(--gray-text);
}

.deal-source {
    font-size: 10px;
    color: var(--gray-text);
}

/* ===== カテゴリタブ ===== */
.category-tabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 12px;
    margin-bottom: 12px;
}

.cat-tab {
    flex-shrink: 0;
    padding: 6px 14px;
    border: none;
    border-radius: 20px;
    font-size: 12px;
    background: var(--white);
    color: var(--dark);
    cursor: pointer;
    transition: all 0.2s;
}

.cat-tab.active {
    background: var(--primary);
    color: var(--white);
}

/* ===== 店舗一覧 ===== */
.store-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.store-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.store-info {
    flex: 1;
}

.store-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 2px;
}

.store-category {
    font-size: 11px;
    color: var(--gray-text);
}

.store-deal-count {
    font-size: 11px;
    color: var(--blue);
    margin-top: 2px;
}

.store-distance {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
}

/* ===== 設定画面 ===== */
.settings-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.settings-section {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

.settings-title {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.settings-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.settings-label {
    font-size: 12px;
    color: var(--gray-text);
    font-weight: 600;
}

.settings-input {
    padding: 10px 12px;
    border: 1px solid var(--gray-light);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    width: 100%;
}

.settings-input:focus {
    border-color: var(--primary);
}

.input-row {
    display: flex;
    gap: 8px;
}

.input-row .settings-input {
    flex: 1;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 8px;
    transition: opacity 0.2s;
}

.btn-primary:active {
    opacity: 0.8;
}

.btn-primary-sm {
    background: var(--blue);
    color: var(--white);
    border: none;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}

.address-result {
    font-size: 13px;
    color: var(--accent);
    padding: 8px;
    background: #E8F5E9;
    border-radius: 6px;
    display: none;
}

.address-result.show {
    display: block;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.checkbox-grid label {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.toggle-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

/* ===== 下部タブバー ===== */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--white);
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--gray-light);
    z-index: 100;
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px 12px;
    transition: color 0.2s;
    color: var(--gray-text);
}

.tab-item.active {
    color: var(--primary);
}

.tab-icon {
    font-size: 20px;
}

.tab-label {
    font-size: 10px;
    font-weight: 600;
}

/* ===== レスポンシブ ===== */
@media (min-width: 481px) {
    .main-content {
        padding: 16px 24px;
    }
}

/* ===== PWA時のスタンドアロン対応 ===== */
@media (display-mode: standalone) {
    body {
        padding-top: 110px;
    }
}