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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: #000;
    color: #fff;
    overflow-x: hidden;
    line-height: 1.6;
}

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

/* Video Background */
.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    overflow: hidden;
}

.video-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.4) saturate(1.2);
}

.fallback-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.7) 0%,
        rgba(255, 120, 50, 0.1) 50%,
        rgba(0, 0, 0, 0.8) 100%
    );
    z-index: -1;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 120, 50, 0.1);
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(0, 0, 0, 0.95);
    border-bottom-color: rgba(255, 120, 50, 0.3);
}

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

.logo {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, #ff7832);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-location {
    font-size: 0.9rem;
    color: #ff7832;
    font-weight: 600;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a:hover {
    color: #ff7832;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #ff7832, #ff9a56);
    transition: width 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #fff;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 50px;
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
}

.title-line {
    display: block;
    margin-bottom: 0.5rem;
}

.highlight {
    background: linear-gradient(135deg, #ff7832, #ff9a56);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.4rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    line-height: 1.7;
    opacity: 0;
    animation: fadeInUp 1s ease 0.7s forwards;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 1s ease 0.9s forwards;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 1.2rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #ff7832, #ff9a56);
    color: #fff;
    box-shadow: 0 8px 25px rgba(255, 120, 50, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(255, 120, 50, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: #ff7832;
    color: #ff7832;
    transform: translateY(-3px);
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff, #ff7832);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #ff7832, #ff9a56);
    margin: 0 auto;
    border-radius: 2px;
}

/* Features Section */
.features {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 120, 50, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 120, 50, 0.1), transparent);
    transition: left 0.6s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 120, 50, 0.3);
    box-shadow: 0 25px 50px rgba(255, 120, 50, 0.1);
}

.feature-card:hover::before {
    left: 100%;
}

.feature-icon {
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #ff7832;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

/* Services Section with Accordion */
.services {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.services-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 120, 50, 0.1);
    border-radius: 15px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.accordion-item:hover {
    border-color: rgba(255, 120, 50, 0.3);
}

.accordion-header {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    transition: all 0.3s ease;
}

.accordion-header:hover {
    background: rgba(255, 255, 255, 0.05);
}

.accordion-title {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.service-number {
    font-size: 1.2rem;
    font-weight: 800;
    color: #ff7832;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 120, 50, 0.1);
}

.accordion-title h3 {
    font-size: clamp(1.2rem, 4vw, 1.5rem);
    font-weight: 700;
    color: #fff;
}

.accordion-icon {
    font-size: 1.5rem;
    color: #ff7832;
    transition: transform 0.3s ease;
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

.accordion-body {
    padding: 0 2rem 2rem;
}

.accordion-body p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.5rem;
}

.service-features li {
    color: #fff;
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #ff7832;
    font-weight: bold;
}

/* Stats Section */
.stats {
    background: rgba(255, 120, 50, 0.05);
    backdrop-filter: blur(10px);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(255, 120, 50, 0.1);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 120, 50, 0.3);
}

.stat-number {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    color: #ff7832;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.clients-section {
    text-align: center;
}

.clients-section h3 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.client-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.client-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* CTA Section */
.cta-section {
    background: rgba(255, 120, 50, 0.1);
    text-align: center;
    backdrop-filter: blur(10px);
}

.cta-content h2 {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: clamp(1rem, 3vw, 1.3rem);
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.contact-info a {
    color: #ff7832;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.3rem;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.9);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ff7832;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: #ff7832;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    padding: 0.5rem 1rem;
    background: rgba(255, 120, 50, 0.1);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: rgba(255, 120, 50, 0.2);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    .nav-links {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        transition: left 0.3s ease;
        z-index: 999;
    }

    .nav-links.mobile-open {
        left: 0;
    }

    .nav-links a {
        font-size: 2rem;
        font-weight: 700;
    }
}
/* TODO お問合せと違う Mobile Menu Styles */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        transition: left 0.3s ease;
        z-index: 999;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links a {
        font-size: 2rem;
        font-weight: 700;
        color: #fff;
        text-decoration: none;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: clamp(2rem, 7vw, 3.5rem);
    }
    
    .section-header h2 {
        font-size: clamp(1.8rem, 5vw, 2.8rem);
    }

    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    section {
        padding: 60px 0;
    }

    .hero {
        padding: 120px 15px 60px;
    }

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

    .btn-primary,
    .btn-secondary {
        padding: 1rem 2rem;
        font-size: 1rem;
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .accordion-header {
        padding: 1rem 1.5rem;
    }

    .accordion-body {
        padding: 0 1.5rem 1.5rem;
    }

    .service-features {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stat-item {
        padding: 1.5rem;
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-buttons {
        gap: 1.5rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .social-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 10px 50px;
    }

    .logo-text {
        font-size: 1.5rem;
    }

    .logo-location {
        font-size: 0.8rem;
    }

    .accordion-title h3 {
        font-size: 1.1rem;
    }

    .service-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

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

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

    .btn-primary,
    .btn-secondary {
        padding: 0.9rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .feature-card:hover,
    .stat-item:hover,
    .client-item:hover {
        transform: none;
    }

    .btn-primary:hover,
    .btn-secondary:hover {
        transform: none;
    }

    .feature-card:active,
    .btn-primary:active,
    .btn-secondary:active {
        transform: scale(0.98);
    }
}

/* High DPI Display Optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .video-background video {
        filter: brightness(0.3) saturate(1.1);
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-title,
    .hero-subtitle,
    .hero-cta {
        opacity: 1;
        animation: none;
    }
}

/* Print Styles */
@media print {
    .video-background,
    .header,
    .footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .main-content {
        position: static;
    }
}