/* Common CSS - 全ページ共通スタイル */

/* ====================
   カラーパレット
==================== */
:root {
    --primary-color: #FFFFFF;
    --accent-color: #E63946;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #F8F9FA;
    --border-color: #E0E0E0;
}

/* ====================
   共通レイアウト
==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 20px auto 0;
}

/* ====================
   ヘッダー
==================== */
.header {
    background-color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.logo-image {
    width: 50px;
    height: 50px;
    background-color: var(--bg-light);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--text-light);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: 5px 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu a:hover {
    opacity: 1;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: all 0.3s;
}

/* ====================
   フッター
==================== */
.footer {
    background-color: #2C2C2C;
    color: #FFFFFF;
    padding: 50px 0 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-section ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-section a {
    color: #CCCCCC;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--accent-color);
    opacity: 1;
}

.footer-info p {
    margin-bottom: 10px;
    color: #CCCCCC;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    color: #999;
}

/* ====================
   ボタン
==================== */
.btn {
    display: inline-block;
    padding: 15px 40px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s;
}

.btn:hover {
    background-color: #C8102E;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(230, 57, 70, 0.3);
    opacity: 1;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: white;
}

.btn-contact {
    background-color: var(--accent-color);
    color: white !important;
    padding: 10px 20px;
    border-radius: 5px;
}

/* ====================
   レスポンシブ
==================== */
@media (max-width: 768px) {
    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .header-container {
        padding: 15px 20px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: white;
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 30px;
        gap: 20px;
        transition: right 0.3s;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.2rem;
    }

    .logo-image {
        width: 40px;
        height: 40px;
    }

    .section-title {
        font-size: 1.5rem;
    }
}

/* ====================
   ローダー
==================== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}