/* ========================================
   LoM Net - 共通デザインテンプレート
   各業種サイトで共通利用するベーススタイル
======================================== */

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

:root {
    /* カラーパレット - カスタマイズ可能 */
    --color-bg: #ffffff;
    --color-mint: #B2F5EA;
    --color-pink: #FFC0CB;
    --color-blue: #B3E5FC;
    --color-tiffany: #81D8D0;
    --color-lavender: #E6E6FA;
    --color-peach: #FFE5B4;
    --color-yellow: #FFF9C4;
    --color-text: #333333;
    --color-text-light: #666666;

    /* グラデーション */
    --gradient-pastel: linear-gradient(135deg, var(--color-pink) 0%, var(--color-blue) 50%, var(--color-mint) 100%);
    --gradient-tiffany: linear-gradient(135deg, var(--color-tiffany) 0%, var(--color-blue) 100%);

    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* フォント */
    --font-main: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'M PLUS Rounded 1c', var(--font-main);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

/* ========================================
   ヘッダー
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 3px solid var(--color-tiffany);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header:hover {
    border-bottom-color: var(--color-pink);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-text);
    text-decoration: none;
    position: relative;
    transition: all 0.3s ease;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-pastel);
    border-radius: 2px;
    animation: rainbow 3s ease-in-out infinite;
}

@keyframes rainbow {

    0%,
    100% {
        transform: scaleX(1);
    }

    50% {
        transform: scaleX(1.1);
    }
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger:hover span {
    background: var(--color-tiffany);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.nav-menu a:hover {
    background: var(--color-mint);
    color: var(--color-text);
    transform: translateY(-2px);
}

/* ========================================
   ヒーローセクション
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    overflow: hidden;
    background: linear-gradient(180deg, #ffffff 0%, var(--color-blue) 30%, var(--color-pink) 70%, var(--color-mint) 100%);
    background-size: 100% 300%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 0%;
    }

    50% {
        background-position: 0% 100%;
    }
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}

.hero::before {
    top: 10%;
    left: 10%;
    width: 100px;
    height: 100px;
    background: var(--color-yellow);
}

.hero::after {
    bottom: 20%;
    right: 15%;
    width: 150px;
    height: 150px;
    background: var(--color-lavender);
    animation-delay: 2s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

.hero-image {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 500px;
    height: auto;
    z-index: 1;
    animation: bounce 3s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translate(-50%, -50%) translateY(0);
    }

    50% {
        transform: translate(-50%, -50%) translateY(-20px);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

.hero-label {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 255, 255, 0.9);
    border: 3px solid var(--color-tiffany);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    animation: wiggle 2s ease-in-out infinite;
}

@keyframes wiggle {

    0%,
    100% {
        transform: rotate(0deg);
    }

    25% {
        transform: rotate(-3deg);
    }

    75% {
        transform: rotate(3deg);
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    text-shadow: 3px 3px 0 var(--color-pink), 6px 6px 0 var(--color-blue);
    animation: titlePop 1s ease-out;
}

@keyframes titlePop {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    background: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-sm);
    border-radius: 20px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 3px solid transparent;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--color-tiffany);
    color: var(--color-text);
    border-color: var(--color-tiffany);
    box-shadow: 0 5px 15px rgba(129, 216, 208, 0.4);
}

.btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 25px rgba(129, 216, 208, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-text);
}

.btn-secondary:hover {
    background: var(--color-pink);
    border-color: var(--color-pink);
    transform: translateY(-5px) scale(1.05);
}

/* ========================================
   セクション共通
======================================== */
.section {
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
    z-index: 1;
}

.section:nth-child(even) {
    background: linear-gradient(180deg, rgba(179, 229, 252, 0.1) 0%, rgba(255, 192, 203, 0.1) 100%);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-label {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-yellow);
    border: 3px solid var(--color-text);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    transform: rotate(-2deg);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   記事グリッド
======================================== */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.article-card {
    background: #ffffff;
    border: 4px solid var(--color-text);
    border-radius: 25px;
    padding: var(--spacing-md);
    transition: all 0.3s ease;
    box-shadow: 6px 6px 0 var(--color-blue);
}

.article-card:hover {
    transform: translateY(-8px) rotate(-1deg);
    box-shadow: 10px 10px 0 var(--color-pink);
}

.article-date {
    color: var(--color-tiffany);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.article-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.article-title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-title a:hover {
    color: var(--color-tiffany);
}

.article-excerpt {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.read-more {
    color: var(--color-tiffany);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: var(--color-pink);
    text-decoration: underline;
}

/* ========================================
   フッター
======================================== */
.footer {
    background: var(--color-mint);
    border-top: 5px solid var(--color-text);
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    font-weight: 900;
}

.footer-section p,
.footer-section a {
    color: var(--color-text-light);
    text-decoration: none;
    line-height: 2;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--color-text);
    text-decoration: underline;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 3px solid var(--color-text);
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ========================================
   アニメーション
======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(50px) scale(0.9);
    transition: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 30px 30px;
        transition: right 0.4s ease;
        border-left: 5px solid var(--color-tiffany);
    }

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

    .hero {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .article-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
        text-shadow: 2px 2px 0 var(--color-pink), 4px 4px 0 var(--color-blue);
    }

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

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .article-card {
        box-shadow: 4px 4px 0 var(--color-pink);
    }
}