:root {
    /* Earth & Vivid Theme */
    --color-bg: #f9f8f4;
    /* 生成り色 */
    --color-surface: #ffffff;
    --color-text: #45403b;
    /* ダークブラウングレー */
    --color-subtext: #787572;
    --color-accent-pop: #ff6f2d;
    /* ビビッドオレンジ（ポップコーン） */
    --color-accent-green: #376e48;
    /* アースグリーン */
    --color-border: #e0ded9;

    --font-main: 'Noto Sans JP', sans-serif;
    --font-logo: 'Zen Maru Gothic', sans-serif;

    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;

    --border-radius: 12px;
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.1);

    --container-width: 1024px;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

/* Utility */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-accent-pop);
    color: white;
    box-shadow: 0 4px 10px rgba(255, 111, 45, 0.3);
}

.btn-primary:hover {
    background-color: #e65100;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 111, 45, 0.4);
}

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

.section-title {
    font-size: 2rem;
    color: var(--color-accent-green);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-logo);
}

.section-subtitle {
    color: var(--color-subtext);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(249, 248, 244, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-list {
    display: none;
    /* Mobile first hidden */
}

@media (min-width: 768px) {
    .nav-list {
        display: flex;
        gap: var(--spacing-lg);
        align-items: center;
    }

    .nav-list a {
        font-weight: 500;
        font-size: 0.95rem;
    }

    .btn-nav {
        padding: 8px 24px;
        background-color: var(--color-text);
        color: white;
    }
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    position: absolute;
    transition: 0.3s;
}

.mobile-menu-btn span:nth-child(1) {
    top: 0;
}

.mobile-menu-btn span:nth-child(2) {
    top: 9px;
}

.mobile-menu-btn span:nth-child(3) {
    bottom: 0;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* Hero */
.hero {
    padding: 120px 0 80px;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

@media (min-width: 768px) {
    .hero-container {
        grid-template-columns: 1.2fr 1fr;
        gap: var(--spacing-xl);
    }
}

.hero-title {
    font-size: 2.2rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-lg);
    font-feature-settings: "palt";
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-accent-green);
    font-weight: 500;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.hero-text {
    margin-bottom: var(--spacing-lg);
    color: var(--color-subtext);
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: auto;
    box-shadow: var(--shadow-soft);
    position: relative;
    z-index: 1;
}

.hero-shape {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent-pop);
    border-radius: var(--border-radius);
    opacity: 0.1;
    z-index: 0;
}

/* Sections */
.section {
    padding: 80px 0;
}

.about {
    background-color: white;
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 2;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

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

.service-card {
    background-color: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent-pop);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent-green);
}

/* Service Examples */
.service-examples {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px dashed var(--color-border);
}

.examples-title {
    text-align: center;
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-logo);
}

.examples-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.example-item {
    display: flex;
    gap: var(--spacing-md);
    background-color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    align-items: center;
    border-left: 4px solid var(--color-accent-green);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.example-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.example-head {
    font-size: 1.1rem;
    color: var(--color-accent-green);
    margin-bottom: 4px;
}

.example-text p {
    font-size: 0.95rem;
    color: var(--color-subtext);
    line-height: 1.5;
}

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

    .example-item:last-child {
        grid-column: span 2;
        /* To make the 5th item centered or full width if preferred, or just list them */
    }
}

/* Events */
.events-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.event-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: start;
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
}

.event-image-placeholder {
    width: 60px;
    height: 60px;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 50%;
    flex-shrink: 0;
}

/* FAQ */
.faq-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    border-left: 4px solid var(--color-accent-green);
}

.faq-question {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent-green);
    margin-bottom: var(--spacing-sm);
}

.faq-answer {
    color: var(--color-text);
    line-height: 1.8;
}

/* Contact */
.contact {
    text-align: center;
}

.contact-box {
    background-color: white;
    padding: 60px var(--spacing-lg);
    border-radius: var(--border-radius);
    border-top: 5px solid var(--color-accent-pop);
    box-shadow: var(--shadow-soft);
}

.btn-large {
    font-size: 1.2rem;
    padding: 16px 48px;
    margin-top: var(--spacing-lg);
}

.contact-note {
    margin-top: var(--spacing-md);
    font-size: 0.8rem;
    color: var(--color-subtext);
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    background-color: var(--color-text);
    color: white;
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Mobile Menu Active State */
@media (max-width: 767px) {
    .nav {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: rgba(255, 255, 255, 0.95);
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-150%);
        transition: transform 0.3s ease-in-out;
        z-index: 999;
    }

    .nav.active {
        transform: translateY(0);
        box-shadow: var(--shadow-hover);
    }

    .nav-list {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 9px;
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg);
    bottom: 9px;
}