/* ===================================
   Benten Club - Casual & Pop Design
   =================================== */

/* CSS Variables */
:root {
    --primary-color: #FF6B6B;
    --primary-light: #FF8E8E;
    --secondary-color: #4ECDC4;
    --accent-color: #FFE66D;
    --accent-pink: #FF9FF3;
    --accent-purple: #A29BFE;
    --text-dark: #2D3436;
    --text-light: #636E72;
    --bg-light: #FFF9F0;
    --bg-white: #FFFFFF;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-small: 10px;
    --radius-full: 50px;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ===================================
   Header
   =================================== */
header {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary-color);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-pink));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    transform: rotate(-5deg);
}

nav ul {
    display: flex;
    gap: 8px;
}

nav a {
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

nav a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

nav a.active {
    background: var(--primary-color);
    color: white;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: 0.3s;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 80px;
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    opacity: 0.3;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-pink) 0%, transparent 70%);
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.5);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), #45B7AA);
    color: white;
    box-shadow: 0 4px 15px rgba(78, 205, 196, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(78, 205, 196, 0.5);
}

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

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

/* ===================================
   Section Common
   =================================== */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-title p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ===================================
   Features Section
   =================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.feature-card:nth-child(1) .feature-icon { background: linear-gradient(135deg, #FFE5E5, #FFF); }
.feature-card:nth-child(2) .feature-icon { background: linear-gradient(135deg, #E5FFF9, #FFF); }
.feature-card:nth-child(3) .feature-icon { background: linear-gradient(135deg, #FFF5E5, #FFF); }
.feature-card:nth-child(4) .feature-icon { background: linear-gradient(135deg, #F0E5FF, #FFF); }

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===================================
   Members Section
   =================================== */
.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.member-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.member-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.member-avatar {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

.member-info {
    padding: 25px;
    text-align: center;
}

.member-info h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.member-role {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.member-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.member-sns {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 15px;
}

.member-sns a {
    width: 36px;
    height: 36px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.member-sns a:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

/* ===================================
   Works Section
   =================================== */
.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.work-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.work-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.work-thumbnail {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.work-info {
    padding: 25px;
}

.work-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.work-tag {
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-light);
}

.work-info h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.work-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===================================
   News Section
   =================================== */
.news-list {
    max-width: 800px;
    margin: 0 auto;
}

.news-item {
    display: flex;
    gap: 25px;
    padding: 25px;
    background: var(--bg-white);
    border-radius: var(--radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-hover);
}

.news-date {
    min-width: 70px;
    text-align: center;
}

.news-date .day {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.news-date .month {
    font-size: 0.85rem;
    color: var(--text-light);
}

.news-content {
    flex: 1;
}

.news-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent-color);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.news-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.news-content p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===================================
   Contact Form
   =================================== */
.contact-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form {
    background: var(--bg-white);
    padding: 50px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group label span {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #E8E8E8;
    border-radius: var(--radius-small);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--bg-white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.1);
}

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

/* ===================================
   Footer
   =================================== */
footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-section p {
    color: #B2BEC3;
    font-size: 0.9rem;
    line-height: 1.8;
}

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

.footer-section a {
    color: #B2BEC3;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid #3D3D3D;
    padding-top: 30px;
    text-align: center;
    color: #B2BEC3;
    font-size: 0.85rem;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* ===================================
   Page Header
   =================================== */
.page-header {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ===================================
   Legal Pages
   =================================== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: 50px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.legal-content h2 {
    font-size: 1.4rem;
    margin: 40px 0 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bg-light);
    color: var(--text-dark);
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p {
    margin-bottom: 15px;
    color: var(--text-light);
}

.legal-content ul {
    margin: 15px 0;
    padding-left: 25px;
}

.legal-content li {
    list-style: disc;
    margin-bottom: 8px;
    color: var(--text-light);
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        padding: 20px;
        box-shadow: var(--shadow);
        display: none;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: 5px;
    }

    nav a {
        display: block;
        text-align: center;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .news-item {
        flex-direction: column;
        gap: 15px;
    }

    .news-date {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .news-date .day {
        font-size: 1.5rem;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .legal-content {
        padding: 30px 20px;
    }
}