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

:root {
    --primary-color: #4A90E2;
    --secondary-color: #7B68EE;
    --success-color: #50C878;
    --warning-color: #FFB347;
    --danger-color: #FF6B6B;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border-color: #E1E8ED;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.8;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   ヘッダー
   =================================== */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 40px 0;
    box-shadow: var(--shadow-md);
}

.header-content {
    text-align: center;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.logo i {
    font-size: 2.2rem;
}

.tagline {
    font-size: 1rem;
    opacity: 0.95;
    font-weight: 300;
}

/* ===================================
   メインコンテンツ
   =================================== */
.main {
    padding: 40px 0 60px;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title i {
    color: var(--primary-color);
}

/* ===================================
   投稿フォーム
   =================================== */
.post-section {
    margin-bottom: 50px;
}

.post-form-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.required {
    color: var(--danger-color);
    font-size: 0.85rem;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.char-count {
    text-align: right;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 6px;
}

/* ===================================
   ボタン
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* ===================================
   フィルターバー
   =================================== */
.filter-section {
    margin-bottom: 30px;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    background: var(--bg-white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-dark);
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.filter-btn i {
    margin-right: 6px;
}

/* ===================================
   相談一覧
   =================================== */
.consultations-list {
    display: grid;
    gap: 24px;
}

.consultation-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.consultation-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.consultation-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.consultation-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.category-badge {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.consultation-content {
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 16px;
    white-space: pre-wrap;
}

.consultation-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 10px;
}

.consultation-author {
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.consultation-author i {
    color: var(--primary-color);
}

.consultation-date {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* ===================================
   空状態
   =================================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.empty-state-sub {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ===================================
   トースト通知
   =================================== */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--text-dark);
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
    max-width: 350px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--danger-color);
}

/* ===================================
   フッター
   =================================== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 30px 0;
    margin-top: auto;
}

.footer-content {
    text-align: center;
}

.footer-content p {
    margin-bottom: 8px;
    opacity: 0.9;
}

.footer-note {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.footer-note i {
    color: var(--danger-color);
}

/* ===================================
   レスポンシブデザイン
   =================================== */
@media (max-width: 768px) {
    .logo {
        font-size: 1.5rem;
    }

    .logo i {
        font-size: 1.6rem;
    }

    .tagline {
        font-size: 0.9rem;
    }

    .post-form-card {
        padding: 20px;
    }

    .section-title {
        font-size: 1.3rem;
    }

    .filter-bar {
        padding: 15px;
    }

    .filter-btn {
        font-size: 0.85rem;
        padding: 8px 16px;
    }

    .consultation-card {
        padding: 20px;
    }

    .consultation-title {
        font-size: 1.1rem;
    }

    .toast {
        right: 15px;
        left: 15px;
        bottom: 15px;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 30px 0;
    }

    .logo {
        font-size: 1.3rem;
        flex-direction: column;
        gap: 8px;
    }

    .main {
        padding: 30px 0 40px;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .consultation-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .consultation-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}