* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #ffffff;
    color: #1e293b;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2rem;
    }
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 50;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    height: 4rem;
}

nav .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo .pink {
    color: #ec4899;
}

.logo .dark {
    color: #0f172a;
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-toggle {
    display: flex;
    background-color: #f3f4f6;
    border-radius: 9999px;
    padding: 0.25rem;
    border: 1px solid #e5e7eb;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

.lang-toggle button {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 9999px;
    transition: all 0.2s;
}

.lang-toggle button.active {
    background-color: white;
    color: #ec4899;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.lang-toggle button:not(.active) {
    color: #9ca3af;
}

/* Hero Section */
.hero {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 4rem;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.2), rgba(255, 255, 255, 1));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    max-width: 48rem;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(4px);
    padding: 3rem 3rem 2.5rem;
    border-radius: 1.5rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 4.5rem;
    }
}

.hero h1 .highlight {
    color: #fbcfe8;
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.6;
    display: block;
    margin-top: 1rem;
}

@media (min-width: 768px) {
    .hero h1 .highlight {
        font-size: 1.5rem;
    }
}

.hero p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 42rem;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

.hero-form {
    display: flex;
    gap: 0.75rem;
    max-width: 28rem;
    margin: 0 auto;
    flex-wrap: wrap;
    justify-content: center;
}

.hero-form input {
    flex: 1;
    min-width: 200px;
    height: 3.5rem;
    border-radius: 9999px;
    padding: 0 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.4);
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    color: white;
    font-size: 1rem;
}

.hero-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.hero-form input:focus {
    outline: none;
    border-color: #f472b6;
    box-shadow: 0 0 0 3px rgba(244, 114, 182, 0.3);
}

.hero-form button {
    height: 3.5rem;
    padding: 0 2rem;
    border-radius: 9999px;
    background-color: #ec4899;
    color: white;
    border: none;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 15px rgba(236, 72, 153, 0.3);
    transition: all 0.2s;
}

.hero-form button:hover {
    background-color: #db2777;
}

.hero-form button:active {
    transform: scale(0.95);
}

/* Event Details Section */
.events {
    padding: 6rem 0;
    background-color: #f9fafb;
}

.events-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 80rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .events-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.event-card {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid #e5e7eb;
    text-align: center;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.event-card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.event-icon {
    width: 3rem;
    height: 3rem;
    background-color: #fce7f3;
    color: #ec4899;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    transition: transform 0.2s;
}

.event-card:hover .event-icon {
    transform: scale(1.1);
}

.event-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #0f172a;
}

.event-card p {
    margin: 0;
    color: #6b7280;
}

.event-card .main {
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.5rem;
}

/* Why Join Section */
.why-join {
    padding: 6rem 0;
    background-color: white;
}

.why-join h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    color: #0f172a;
}

.why-join-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 60rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .why-join-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.why-card {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid #e5e7eb;
    transition: all 0.2s;
}

.why-card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-color: #ec4899;
}

.why-card-number {
    width: 2rem;
    height: 2rem;
    background-color: #ec4899;
    color: white;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 1rem;
}

.why-card p {
    color: #6b7280;
    line-height: 1.6;
}

.why-card img {
    transition: transform 0.3s ease;
}

.why-card:hover img {
    transform: scale(1.05);
}

/* Mood Board Gallery */
.mood-board {
    margin-top: 4rem;
    columns: 2;
    column-gap: 1rem;
}

@media (min-width: 768px) {
    .mood-board {
        columns: 3;
        column-gap: 1.25rem;
    }
}

@media (min-width: 1024px) {
    .mood-board {
        columns: 4;
        column-gap: 1.5rem;
    }
}

.mood-item {
    break-inside: avoid;
    margin-bottom: 1rem;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

@media (min-width: 768px) {
    .mood-item {
        margin-bottom: 1.25rem;
    }
}

@media (min-width: 1024px) {
    .mood-item {
        margin-bottom: 1.5rem;
    }
}

.mood-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.mood-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* About Us Section */
.about-us-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 90rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .about-us-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.about-us-photos {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 480px) {
    .about-us-photos {
        grid-template-columns: 1fr 1fr;
    }
}

.about-us-img {
    width: 100%;
    border-radius: 1rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-us-img:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

/* Newsletter Section */
.newsletter {
    padding: 6rem 0;
    background-color: #0f172a;
    color: white;
}

.newsletter .container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .newsletter .container {
        grid-template-columns: 2fr 1fr;
    }
}

.newsletter h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.newsletter p {
    font-size: 1.125rem;
    color: #9ca3af;
    margin-bottom: 2rem;
    max-width: 32rem;
}

.newsletter-form {
    display: flex;
    gap: 0.75rem;
    max-width: 28rem;
}

.newsletter-form input {
    flex: 1;
    height: 3.5rem;
    border-radius: 9999px;
    padding: 0 1.5rem;
    border: 1px solid #374151;
    background-color: #1e293b;
    color: white;
    font-size: 1rem;
}

.newsletter-form input::placeholder {
    color: #6b7280;
}

.newsletter-form input:focus {
    outline: none;
    border-color: #f472b6;
    box-shadow: 0 0 0 3px rgba(244, 114, 182, 0.3);
}

.newsletter-form button {
    height: 3.5rem;
    padding: 0 2rem;
    border-radius: 9999px;
    background-color: #ec4899;
    color: white;
    border: none;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 15px rgba(236, 72, 153, 0.3);
    transition: all 0.2s;
}

.newsletter-form button:hover {
    background-color: #db2777;
}

.instagram-box {
    background-color: #1e293b;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
}

.instagram-box h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.instagram-link {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: white;
}

.instagram-icon {
    width: 5rem;
    height: 5rem;
    background: linear-gradient(135deg, #fbbf24, #f87171, #a855f7);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
    font-size: 2.5rem;
}

.instagram-link:hover .instagram-icon {
    transform: scale(1.05);
}

.instagram-text {
    font-size: 1.125rem;
    font-weight: 500;
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
    background-color: #f9fafb;
}

.faq h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: #0f172a;
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 48rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.faq-item {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid #e5e7eb;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.faq-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #f9a8d4;
}

.faq-question {
    font-family: 'Outfit', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0.75rem;
}

.faq-item p {
    color: #6b7280;
    line-height: 1.6;
    margin: 0;
}

/* Footer */
footer {
    padding: 2rem 0;
    background-color: white;
    border-top: 1px solid #e5e7eb;
    text-align: center;
}

footer p {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
    animation: slideIn 0.3s ease-out;
    z-index: 100;
    font-weight: 500;
}

.toast.success {
    background-color: #10b981;
    color: white;
}

.toast.error {
    background-color: #ef4444;
    color: white;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hidden {
    display: none;
}

/* Language-specific content */
[data-lang="en"] {
    display: block;
}

[data-lang="ja"] {
    display: none;
}

body.lang-ja [data-lang="en"] {
    display: none;
}

body.lang-ja [data-lang="ja"] {
    display: block;
}

/* Language toggle buttons - both always visible */
.lang-btn {
    display: inline-block !important;
}