/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1DB8A8;
    --primary-dark: #159e90;
    --secondary: #7c3aed;
    --dark: #0d1117;
    --dark2: #161b22;
    --dark3: #21262d;
    --text: #e6edf3;
    --text-muted: rgba(230,237,243,0.6);
    --border: rgba(255,255,255,0.08);
    --gradient: linear-gradient(135deg, #1DB8A8, #7c3aed);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background: var(--dark);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13,17,23,0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(13,17,23,0.98);
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    flex-shrink: 0;
}

.logo-text {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 0.02em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(29,184,168,0.08);
}

.btn-contact {
    background: var(--gradient);
    color: #fff;
    border: none;
    padding: 10px 22px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.3s, transform 0.2s;
    font-family: 'Noto Sans JP', sans-serif;
    white-space: nowrap;
}

.btn-contact:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: block;
    position: relative;
    overflow: hidden;
    padding: 0;
    text-align: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}

#waveCanvas {
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 120px 40px 80px;
    min-height: 100vh;
}

.hero-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.3em;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 20px;
    display: block;
    text-align: center;
    width: 100%;
}

.hero-title {
    font-size: clamp(1.8rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    text-align: center;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-title-line1 {
    display: block;
    text-align: center;
    width: 100%;
}

.hero-title-accent {
    display: block;
    text-align: center;
    width: 100%;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    color: var(--text-muted);
    line-height: 1.9;
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stat {
    text-align: center;
}

.hero-stat-num {
    font-family: 'Inter', sans-serif;
    font-size: 2.2rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 4px;
}

.hero-stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
}

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

.btn-primary {
    background: var(--gradient);
    color: #fff;
    padding: 15px 40px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: transform 0.3s, box-shadow 0.3s, opacity 0.3s;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(29,184,168,0.35);
    opacity: 0.9;
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    padding: 14px 38px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    transition: all 0.3s;
    display: inline-block;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(29,184,168,0.06);
}

/* ===== SECTIONS ===== */
.section {
    padding: 100px 40px;
}

.section-alt {
    background: var(--dark2);
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== ABOUT ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.about-card {
    background: var(--dark3);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 28px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.about-card:hover {
    transform: translateY(-4px);
    border-color: rgba(29,184,168,0.3);
    box-shadow: 0 12px 32px rgba(29,184,168,0.08);
}

.about-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(29,184,168,0.15), rgba(124,58,237,0.15));
    border: 1px solid rgba(29,184,168,0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.about-hero-img {
    margin-bottom: 48px;
    border-radius: 16px;
    overflow: hidden;
    max-height: 400px;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.about-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.about-card-desc {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.8;
}

/* ===== PORTFOLIO ===== */
.card-img {
    height: 200px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.card-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.5) 100%);
    display: flex;
    align-items: flex-end;
    padding: 12px 16px;
}

.card-category {
    font-family: 'Inter', sans-serif;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: #fff;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(4px);
    padding: 4px 12px;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.25);
}

.card-header-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.card-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.tag {
    font-size: 0.72rem;
    padding: 3px 10px;
    border-radius: 50px;
    font-weight: 600;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 28px;
}

.portfolio-card {
    background: var(--dark3);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.portfolio-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(0,0,0,0.4);
    border-color: rgba(29,184,168,0.2);
}

.card-preview {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card-preview-content {
    text-align: center;
    z-index: 2;
    position: relative;
}

.card-preview-icon {
    font-size: 2.5rem;
    margin-bottom: 8px;
    display: block;
}

.card-preview-name {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
}

.card-body {
    padding: 24px;
}

.card-tag {
    display: inline-block;
    font-size: 0.68rem;
    letter-spacing: 0.15em;
    padding: 3px 10px;
    border-radius: 50px;
    margin-bottom: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.card-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.card-feature {
    font-size: 0.72rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 3px 10px;
    border-radius: 50px;
    color: var(--text-muted);
}

.card-btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 700;
    color: #fff;
    transition: opacity 0.3s, transform 0.2s;
}

.card-btn:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

/* ===== SERVICE INFO ===== */
.service-info {
    padding: 100px 40px;
    background: var(--dark);
}

.service-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 64px;
}

.service-info-card {
    background: var(--dark3);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 28px;
    transition: transform 0.3s, border-color 0.3s;
}

.service-info-card:hover {
    transform: translateY(-4px);
    border-color: rgba(29,184,168,0.3);
}

.service-info-card.highlight {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(29,184,168,0.08), rgba(124,58,237,0.08));
    position: relative;
    overflow: hidden;
}

.service-info-card.highlight::before {
    content: '先着20社限定';
    position: absolute;
    top: 16px;
    right: -24px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 4px 32px;
    transform: rotate(35deg);
    letter-spacing: 0.05em;
}

.service-info-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    display: block;
}

.service-info-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-info-desc {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.8;
}

.service-info-price {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 700;
}

/* ===== CTA ===== */
.cta {
    padding: 100px 40px;
    background: linear-gradient(135deg, rgba(29,184,168,0.12), rgba(124,58,237,0.12));
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.cta-title {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 900;
    margin-bottom: 16px;
}

.cta-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

/* ===== CONTACT ===== */
.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contact-info-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-info-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.contact-item-icon {
    width: 36px;
    height: 36px;
    background: rgba(29,184,168,0.1);
    border: 1px solid rgba(29,184,168,0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* FORM */
.contact-form {
    background: var(--dark3);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.form-label .required {
    color: #f87171;
    margin-left: 4px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text);
    font-size: 0.9rem;
    font-family: 'Noto Sans JP', sans-serif;
    transition: border-color 0.3s, box-shadow 0.3s;
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29,184,168,0.1);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%231DB8A8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-select option {
    background: var(--dark2);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-submit {
    width: 100%;
    background: var(--gradient);
    color: #fff;
    border: none;
    padding: 15px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.3s, transform 0.2s;
    font-family: 'Noto Sans JP', sans-serif;
    margin-top: 8px;
}

.form-submit:hover {
    opacity: 0.85;
    transform: translateY(-2px);
}

/* ===== FOOTER ===== */
.footer {
    background: #080d14;
    padding: 80px 40px 32px;
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 16px;
    display: inline-flex;
}

.footer-brand-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.8;
}

.footer-nav-title {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 20px;
}

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

.footer-nav li {
    margin-bottom: 10px;
}

.footer-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}

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

.footer-contact p {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.8;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-bottom p {
    font-size: 0.78rem;
    color: rgba(230,237,243,0.25);
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
    .contact-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 0 20px;
    }
    .nav {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(13,17,23,0.98);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border);
        gap: 4px;
    }
    .nav.open {
        display: flex;
    }
    .nav-link {
        padding: 12px 16px;
        width: 100%;
    }
    .hamburger {
        display: flex;
    }
    .btn-contact {
        display: none;
    }
    .section {
        padding: 70px 20px;
    }
    .hero {
        padding: 0;
        text-align: center;
    }
    .hero-content {
        text-align: center !important;
        width: 100% !important;
        padding: 100px 20px 60px !important;
        margin: 0 auto !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        min-height: 100vh !important;
    }
    .hero-title {
        text-align: center !important;
        width: 100% !important;
        font-size: 2rem !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        margin-left: auto !important;
        margin-right: auto !important;
    }
    .hero-title-line1 {
        display: block !important;
        text-align: center !important;
        width: 100% !important;
    }
    .hero-title-accent {
        display: block !important;
        text-align: center !important;
        width: 100% !important;
    }
    .hero-label {
        text-align: center;
        width: 100%;
    }
    .hero-desc {
        text-align: center;
        width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    .hero-btns {
        justify-content: center;
        width: 100%;
    }
    .hero-stats {
        gap: 24px;
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer {
        padding: 60px 20px 24px;
    }
    .service-info {
        padding: 70px 20px;
    }
    .cta {
        padding: 70px 20px;
    }
}