/* =============================================
   Pattern 30: Automotive (自動車販売・整備)
   Drive Dynamics — 品質向上版
   ★ 独自構成: 斜めダイアゴナルUI, 水平スクロール車両一覧, 太字/斜体
   ============================================= */

:root {
    --c-dark: #121212;
    --c-gray: #2C2C2C;
    --c-gray-light: #F0F2F5;
    --c-red: #D22B2B;
    /* レーシングレッド */
    --c-white: #ffffff;
    --c-text: #333333;
    --c-text-muted: #888888;
    --f-display: "Oswald", sans-serif;
    --f-body: "Noto Sans JP", sans-serif;
}

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

body {
    font-family: var(--f-body);
    color: var(--c-text);
    background: var(--c-white);
    line-height: 1.6;
    font-weight: 400;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.container--about {
    max-width: 900px;
}

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

.text-white {
    color: var(--c-white) !important;
}

.text-red {
    color: var(--c-red) !important;
}

.relative {
    position: relative;
    z-index: 2;
}

/* ===== ユーティリティ・ダイアゴナル ===== */
.sect-subtitle {
    display: block;
    font-family: var(--f-display);
    font-size: 1.2rem;
    color: var(--c-red);
    font-weight: 500;
    letter-spacing: 0.15em;
    margin-bottom: 10px;
}

.clip-diagonal-bottom {
    clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
    margin-bottom: -5vw;
    padding-bottom: 5vw;
    z-index: 2;
    position: relative;
}

.clip-diagonal-both {
    clip-path: polygon(0 5vw, 100% 0, 100% 95vw, 0 100%);
    margin-top: -5vw;
    padding-top: 10vw;
    padding-bottom: 10vw;
    margin-bottom: -5vw;
    z-index: 1;
    position: relative;
}

.clip-diagonal-top {
    clip-path: polygon(0 5vw, 100% 0, 100% 100%, 0 100%);
    padding-top: 10vw;
    position: relative;
    margin-top: -5vw;
    z-index: 0;
}

/* ===== ヘッダー ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 25px 40px;
    transition: all 0.3s;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
}

.header.is-scrolled {
    background: rgba(18, 18, 18, 0.98);
    padding: 15px 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    text-decoration: none;
    color: var(--c-white);
    transform: skewX(-10deg);
}

.logo-main {
    font-family: var(--f-display);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.logo-sub {
    font-family: var(--f-display);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--c-red);
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav a {
    font-family: var(--f-display);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--c-white);
    transition: color 0.3s;
    letter-spacing: 0.1em;
}

.nav a:hover {
    color: var(--c-red);
}

.nav-contact {
    background: var(--c-red);
    padding: 8px 25px;
    transform: skewX(-10deg);
    display: inline-block;
}

.nav-contact:hover {
    background: #b02020;
    color: var(--c-white) !important;
}

/* ハンバーガーは初期非表示、JSで切り替え推奨だが今回は簡易実装 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--c-white);
    margin-bottom: 5px;
    transition: 0.3s;
}

/* ===== ヒーロー ===== */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

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

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(10%) contrast(1.1);
    transform: scale(1.05);
    animation: heroZoom 20s ease-out forwards;
}

@keyframes heroZoom {
    100% {
        transform: scale(1);
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 0, 0, 0) 100%);
}

.hero-content {
    width: 100%;
    position: relative;
    z-index: 2;
}

.hero-text-area {
    max-width: 600px;
    color: var(--c-white);
}

.hero-subtitle {
    display: block;
    font-family: var(--f-display);
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    color: var(--c-red);
    border-left: 4px solid var(--c-red);
    padding-left: 15px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 700;
    font-style: italic;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 30px;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.hero-desc {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 40px;
    font-weight: 500;
}

/* ===== ボタン ===== */
.btn-primary {
    display: inline-block;
    background: var(--c-red);
    color: var(--c-white);
    font-family: var(--f-display);
    font-size: 1.2rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    padding: 15px 40px;
    text-decoration: none;
    text-transform: uppercase;
    transform: skewX(-10deg);
    transition: background 0.3s;
}

.btn-primary:hover {
    background: #b02020;
}

.btn-outline {
    display: inline-block;
    border: 2px solid var(--c-dark);
    color: var(--c-dark);
    font-family: var(--f-display);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    padding: 10px 30px;
    text-decoration: none;
    text-transform: uppercase;
    transform: skewX(-10deg);
    transition: all 0.3s;
}

.btn-outline:hover {
    background: var(--c-dark);
    color: var(--c-white);
}

.link-arrow {
    font-family: var(--f-display);
    color: var(--c-red);
    font-size: 1.1rem;
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.1em;
    transition: opacity 0.3s;
}

.link-arrow:hover {
    opacity: 0.8;
}

/* ===== セクションベース ===== */
.section {
    padding: 100px 0;
}

.section--dark {
    background: var(--c-dark);
    color: var(--c-white);
}

.section-head {
    margin-bottom: 50px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.section-head h2 {
    font-size: 2.8rem;
    font-weight: 700;
    font-style: italic;
    letter-spacing: -0.02em;
}

.head-action {
    margin-bottom: 10px;
}

/* ===== About ===== */
.about-text {
    margin-bottom: 60px;
    text-align: center;
}

.about-text h2 {
    font-size: 2.6rem;
    font-style: italic;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--c-dark);
}

.about-desc {
    font-size: 1.05rem;
    line-height: 2;
    color: var(--c-text-muted);
}

.about-stats {
    display: flex;
    justify-content: space-around;
    background: var(--c-gray-light);
    padding: 50px;
    transform: skewX(-5deg);
}

.stat-item {
    text-align: center;
    transform: skewX(5deg);
}

.stat-num {
    display: block;
    font-family: var(--f-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--c-dark);
    line-height: 1;
    margin-bottom: 10px;
}

.stat-num small {
    font-size: 1.5rem;
    color: var(--c-red);
}

.stat-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--c-text-muted);
    letter-spacing: 0.1em;
}

/* ===== Inventory (水平スクロール) ===== */
.inventory-scroll-wrap {
    padding: 0 40px 40px;
    overflow-x: auto;
    scrollbar-width: none;
}

.inventory-scroll-wrap::-webkit-scrollbar {
    display: none;
}

.inventory-track {
    display: flex;
    gap: 30px;
    width: max-content;
}

.car-card {
    background: var(--c-gray);
    width: 380px;
    flex-shrink: 0;
    transition: transform 0.3s;
}

.car-card:hover {
    transform: translateY(-10px);
}

.car-img-wrap {
    width: 100%;
    height: 260px;
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
}

.car-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.car-card:hover .car-img-wrap img {
    transform: scale(1.1);
}

.car-badge {
    position: absolute;
    top: 20px;
    left: 0;
    background: var(--c-red);
    color: var(--c-white);
    font-family: var(--f-display);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 5px 20px;
    transform: skewX(-10deg);
    z-index: 2;
}

.car-info {
    padding: 20px 30px 40px;
}

.car-name {
    font-family: var(--f-display);
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 5px;
    color: var(--c-white);
}

.car-price {
    font-family: var(--f-display);
    font-size: 1.4rem;
    color: var(--c-red);
    font-weight: 700;
    margin-bottom: 20px;
}

.car-specs {
    list-style: none;
    margin-bottom: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.car-specs li {
    font-size: 0.9rem;
    color: #aaaaaa;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px dotted rgba(255, 255, 255, 0.1);
    padding-bottom: 8px;
}

.car-specs strong {
    color: var(--c-white);
    font-weight: 500;
}

.car-card .btn-outline {
    border-color: var(--c-white);
    color: var(--c-white);
    width: 100%;
    text-align: center;
}

.car-card .btn-outline:hover {
    background: var(--c-red);
    border-color: var(--c-red);
}

/* ===== Services ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-box {
    background: var(--c-gray-light);
    overflow: hidden;
    position: relative;
}

.service-box::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 4px;
    background: var(--c-red);
    transition: width 0.4s;
}

.service-box:hover::after {
    width: 100%;
}

.service-box-img {
    width: 100%;
    height: 250px;
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
}

.service-box-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(30%);
    transition: transform 0.5s, filter 0.5s;
}

.service-box:hover .service-box-img img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.service-box-text {
    padding: 20px 30px 40px;
}

.service-box-text h3 {
    font-family: var(--f-display);
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--c-dark);
    margin-bottom: 5px;
    text-transform: uppercase;
}

.service-box-text h4 {
    font-size: 1rem;
    color: var(--c-red);
    margin-bottom: 15px;
    font-weight: 700;
}

.service-box-text p {
    font-size: 0.95rem;
    color: var(--c-text-muted);
    line-height: 1.8;
}

/* ===== FAQ ===== */
.faq-list {
    margin: 0 auto;
}

.faq-item {
    background: var(--c-gray-light);
    border-left: 4px solid var(--c-red);
    margin-bottom: 20px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    transform: skewX(-5deg);
}

.faq-item:hover {
    transform: skewX(-5deg) translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.faq-q {
    font-size: 1.1rem;
    color: var(--c-dark);
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    transform: skewX(5deg);
}

.faq-q::before {
    content: 'Q.';
    font-family: var(--f-display);
    color: var(--c-red);
    font-size: 1.6rem;
    line-height: 1;
}

.faq-a {
    color: var(--c-text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    transform: skewX(5deg);
}

.faq-a::before {
    content: 'A.';
    color: var(--c-dark);
    font-family: var(--f-display);
    font-size: 1.6rem;
    line-height: 1;
    opacity: 0.8;
}

/* ===== CTA ===== */
.section--cta {
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.cta-bg-image {
    position: absolute;
    inset: 0;
    background: var(--c-dark);
}

.cta-bg-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 3.2rem;
    font-weight: 700;
    font-style: italic;
    color: var(--c-white);
    margin-bottom: 30px;
}

.cta-desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-actions {
    display: flex;
    gap: 30px;
    justify-content: center;
    align-items: center;
}

.btn-tel {
    font-family: var(--f-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--c-white);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    line-height: 1;
    transition: color 0.3s;
}

.btn-tel:hover {
    color: var(--c-red);
}

.btn-tel small {
    font-family: var(--f-body);
    font-size: 0.8rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 10px;
    letter-spacing: 0.1em;
}

/* ===== フッター ===== */
.footer {
    background: var(--c-dark);
    color: var(--c-text-muted);
    padding: 80px 0 30px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    font-family: var(--f-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--c-white);
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    transform: skewX(-10deg);
    display: inline-block;
}

.footer-address {
    line-height: 1.8;
    font-size: 0.9rem;
}

.footer-col h3 {
    font-family: var(--f-display);
    font-size: 1.2rem;
    color: var(--c-white);
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

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

.footer-col li {
    margin-bottom: 12px;
}

.footer-col a {
    color: var(--c-text-muted);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.9rem;
}

.footer-col a:hover {
    color: var(--c-red);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-family: var(--f-display);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

/* ===== アニメーション ===== */
.anim {
    opacity: 0;
    transition: all 1s cubic-bezier(0.22, 1, 0.36, 1);
}

.anim.anim-up {
    transform: translateY(40px);
}

.anim.is-visible {
    opacity: 1;
    transform: translate(0);
}

.anim-d1 {
    transition-delay: 0.2s;
}

.anim-d2 {
    transition-delay: 0.4s;
}

.anim-d3 {
    transition-delay: 0.6s;
}

.anim-d4 {
    transition-delay: 0.8s;
}

.anim-hero {
    opacity: 0;
    transform: translateX(-30px) skewX(-10deg);
    transition: all 1s cubic-bezier(0.22, 1, 0.36, 1);
}

.anim-hero.is-visible {
    opacity: 1;
    transform: translateX(0) skewX(0);
}

/* ===== レスポンシブ ===== */
@media (max-width: 900px) {
    .clip-diagonal-bottom {
        clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
        margin-bottom: -10vw;
        padding-bottom: 10vw;
    }

    .clip-diagonal-both {
        clip-path: polygon(0 10vw, 100% 0, 100% 90vw, 0 100%);
        margin-top: -10vw;
        padding-top: 20vw;
        padding-bottom: 20vw;
        margin-bottom: -10vw;
    }

    .clip-diagonal-top {
        clip-path: polygon(0 10vw, 100% 0, 100% 100%, 0 100%);
        margin-top: -10vw;
        padding-top: 20vw;
    }

    .hero-title {
        font-size: 2.6rem;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
        gap: 20px;
    }

    .about-stats {
        flex-direction: column;
        gap: 30px;
        transform: skewX(0);
    }

    .stat-item {
        transform: skewX(0);
    }

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

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

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .nav {
        display: none;
    }

    .menu-toggle {
        display: block;
    }
}