/* ========================================
   Videofac - Simple & Stylish
   ======================================== */

:root {
    --black: #0a0a0a;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-900: #171717;
    --accent: #0066ff;
    --font-sans: 'Inter', 'Noto Sans JP', -apple-system, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.7;
    color: var(--gray-900);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   Typography
   ======================================== */
.section-label {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--black);
    margin-bottom: 24px;
}

.section-desc {
    font-size: 18px;
    color: var(--gray-500);
    max-width: 600px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.btn-primary:hover {
    background: var(--gray-900);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--black);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--black);
}

.btn-ghost {
    background: transparent;
    color: var(--gray-600);
    padding: 14px 0;
}

.btn-ghost:hover {
    color: var(--black);
}

.btn-white {
    background: var(--white);
    color: var(--black);
}

.btn-white:hover {
    background: var(--gray-100);
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-100);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-list a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    transition: color 0.2s;
}

.nav-list a:hover {
    color: var(--black);
}

.nav-list .btn {
    padding: 10px 20px;
    background: var(--black);
    color: var(--white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 20px;
    height: 1.5px;
    background: var(--black);
    transition: 0.2s;
}

/* ========================================
   Hero
   ======================================== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding-top: 72px;
}

.hero .container {
    padding: 80px 24px 80px 80px;
}

.hero-label {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 32px;
}

.hero-title span {
    color: var(--accent);
}

.hero-desc {
    font-size: 18px;
    color: var(--gray-500);
    margin-bottom: 48px;
    max-width: 480px;
}

.hero-cta {
    display: flex;
    gap: 16px;
}

.hero-visual {
    height: 100%;
    min-height: 600px;
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================
   Service
   ======================================== */
.service {
    padding: 160px 0;
    background: var(--gray-50);
}

.service .container {
    text-align: center;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-top: 80px;
}

.service-card {
    text-align: left;
    padding: 48px 40px;
    background: var(--white);
    border-radius: 12px;
}

.service-num {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: var(--gray-500);
    margin-bottom: 24px;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.8;
}

/* ========================================
   Features
   ======================================== */
.features {
    padding: 160px 0;
}

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 160px;
}

.feature-block:last-child {
    margin-bottom: 0;
}

.feature-block.reverse {
    direction: rtl;
}

.feature-block.reverse>* {
    direction: ltr;
}

.feature-content p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.9;
}

.feature-image {
    border-radius: 12px;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

/* ========================================
   Pricing
   ======================================== */
.pricing {
    padding: 160px 0;
    background: var(--gray-50);
    text-align: center;
}

.pricing .section-desc {
    margin-left: auto;
    margin-right: auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 64px auto 0;
}

.pricing-card {
    position: relative;
    padding: 48px 40px;
    background: var(--white);
    border-radius: 16px;
    text-align: left;
    border: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border-color: var(--black);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 40px;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    background: var(--black);
    color: var(--white);
    border-radius: 20px;
}

.pricing-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.pricing-price span {
    font-size: 40px;
    font-weight: 700;
    color: var(--black);
}

.pricing-features {
    margin-bottom: 32px;
    flex: 1;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-100);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-card .btn {
    width: 100%;
    margin-top: auto;
}

/* ========================================
   About
   ======================================== */
.about {
    padding: 160px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-image {
    border-radius: 12px;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
}

/* ========================================
   CTA
   ======================================== */
.cta {
    padding: 120px 0;
    background: var(--black);
    text-align: center;
}

.cta h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
}

.cta p {
    font-size: 16px;
    color: var(--gray-400);
    margin-bottom: 40px;
}

/* ========================================
   Contact
   ======================================== */
.contact {
    padding: 160px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info p {
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 48px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 8px;
}

.contact-item a {
    font-size: 18px;
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--accent);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group label span {
    color: var(--accent);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    font-family: inherit;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    transition: border-color 0.2s;
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--black);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    align-self: flex-start;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--gray-100);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
}

.footer-nav {
    display: flex;
    gap: 32px;
}

.footer-nav a {
    font-size: 14px;
    color: var(--gray-500);
}

.footer-nav a:hover {
    color: var(--black);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--gray-400);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .hero .container {
        padding: 120px 24px 80px;
        text-align: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        min-height: 400px;
    }

    .service-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .feature-block,
    .feature-block.reverse {
        grid-template-columns: 1fr;
        gap: 48px;
        direction: ltr;
    }

    .feature-block {
        margin-bottom: 100px;
    }

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-image {
        order: -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 64px;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 32px;
    }

    .service,
    .features,
    .pricing,
    .about,
    .contact {
        padding: 100px 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-list {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: center;
        gap: 32px;
        background: var(--white);
        opacity: 0;
        visibility: hidden;
        transition: 0.3s;
    }

    .nav-list.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-list a {
        font-size: 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 32px;
    }

    .footer-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-desc br {
        display: none;
    }

    .service-card {
        padding: 32px 24px;
    }

    .pricing-card {
        padding: 40px 24px;
    }

    .cta {
        padding: 80px 0;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-up {
    animation: fadeUp 0.8s ease forwards;
}