/*
Theme Name: BURNOUT Modern
Theme URI: https://burnout.jp
Author: BURNOUT.
Author URI: https://burnout.jp
Description: モダンでアニメーション豊富なBURNOUT.テーマ
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: burnout-modern
*/

/* ===================================
   ローディングアニメーション
=================================== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #a4d65e 0%, #7fb62e 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    color: white;
}

.loader-logo {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 2rem;
    letter-spacing: 3px;
    animation: fadeInScale 1s ease;
}

@keyframes fadeInScale {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.bike-loader {
    position: relative;
    width: 300px;
    height: 100px;
    margin: 0 auto;
    overflow: hidden;
}

.bike-icon-loader {
    position: absolute;
    left: -80px;
    bottom: 20px;
    width: 80px;
    height: 80px;
    font-size: 60px;
    line-height: 80px;
    text-align: center;
    animation: bikeRide 2s ease-in-out infinite;
}

/* バイク画像用のスタイル（後で画像に置き換える用） */
.bike-icon-loader img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

@keyframes bikeRide {
    0% {
        left: -80px;
    }
    100% {
        left: 100%;
    }
}

.road-line {
    position: absolute;
    bottom: 10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
    overflow: hidden;
}

.road-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 10px,
        white 10px,
        white 20px
    );
    animation: roadMove 1s linear infinite;
}

@keyframes roadMove {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* スピードライン（オプション） */
.speed-lines {
    position: absolute;
    left: 0;
    bottom: 30px;
    width: 100%;
    height: 60px;
    pointer-events: none;
}

.speed-line {
    position: absolute;
    height: 2px;
    background: rgba(255, 255, 255, 0.6);
    animation: speedLine 0.5s linear infinite;
}

.speed-line:nth-child(1) {
    top: 10px;
    animation-delay: 0s;
}

.speed-line:nth-child(2) {
    top: 25px;
    animation-delay: 0.1s;
}

.speed-line:nth-child(3) {
    top: 40px;
    animation-delay: 0.2s;
}

@keyframes speedLine {
    0% {
        left: 30%;
        width: 0;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        left: 0;
        width: 30%;
        opacity: 0;
    }
}

.loading-text {
    margin-top: 2rem;
    font-size: 1.2rem;
    font-weight: 500;
    opacity: 0.9;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

/* ===================================
   リセット & ベース設定
=================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2d3436;
    --accent-color: #a4d65e;
    --accent-dark: #7fb62e;
    --gradient-start: #a4d65e;
    --gradient-end: #7fb62e;
    --text-light: #ffffff;
    --text-dark: #333333;
    --bg-light: #f8f9fa;
    --card-bg: rgba(255, 255, 255, 0.1);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    background: var(--bg-light);
    overflow-x: hidden;
}

/* ===================================
   カスタムスクロールバー
=================================== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--gradient-start), var(--gradient-end));
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* ===================================
   ヘッダー
=================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(45, 52, 54, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.site-header.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 30px rgba(164, 214, 94, 0.2);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.custom-logo-link {
    padding-top: 7px;
}
.custom-logo-link img {
    max-width: 200px;
    height: auto;
}
.site-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    letter-spacing: 2px;
    transition: var(--transition);
}

.site-logo:hover {
    color: var(--accent-color);
    transform: scale(1.05);
}

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

.main-nav a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
    padding: 0.5rem 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.main-nav a:hover {
    color: var(--accent-color);
}

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

/* ===================================
   ヒーローセクション
=================================== */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #a4d65e 0%, #7fb62e 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,144C960,149,1056,139,1152,122.7C1248,107,1344,85,1392,74.7L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') bottom center no-repeat;
    background-size: cover;
    animation: wave 15s ease-in-out infinite;
}

@keyframes wave {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--text-light);
    padding: 2rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.3s;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.6s;
}

.typing-text {
    display: inline-block;
    border-right: 3px solid var(--accent-color);
    padding-right: 5px;
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 100% { border-color: transparent; }
    50% { border-color: var(--accent-color); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cta-button {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--accent-color);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.9s, pulse 2s ease-in-out infinite 2s;
    box-shadow: 0 4px 15px rgba(164, 214, 94, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(164, 214, 94, 0.6);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ===================================
   サービスセクション
=================================== */
.services-section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.services-grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (min-width: 1200px) {
    .services-grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 900px) {
    .services-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .services-grid-4 {
        grid-template-columns: 1fr;
    }
}

.service-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(164, 214, 94, 0.2);
    opacity: 0;
    transform: translateY(50px);
}

.service-card.animate {
    animation: slideInUp 0.6s ease forwards;
}

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

.service-card:nth-child(2) {
    animation-delay: 0.2s;
}

.service-card:nth-child(3) {
    animation-delay: 0.4s;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(164, 214, 94, 0.3);
    border-color: var(--accent-color);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card p {
    color: #666;
    line-height: 1.6;
}

/* ===================================
   TOPICSセクション
=================================== */
.topics-section {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
}

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

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.topic-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(30px);
}

.topic-card.animate {
    animation: fadeInUp 0.6s ease forwards;
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.topic-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.topic-card:hover .topic-card-image {
    transform: scale(1.1);
}

.topic-card-content {
    padding: 1.5rem;
}

.topic-date {
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.topic-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.topic-card a {
    color: inherit;
    text-decoration: none;
}

/* ===================================
   フッター
=================================== */
.site-footer {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 3rem 2rem 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

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

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: var(--accent-color);
    transform: translateX(5px);
}

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

/* ===================================
   レスポンシブ
=================================== */
@media (max-width: 768px) {
    .main-nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .services-grid,
    .topics-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   ユーティリティクラス
=================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* バイクアイコンのアニメーション */
.bike-icon {
    display: inline-block;
    animation: bikeRide 2s ease-in-out infinite;
}

@keyframes bikeRide {
    0%, 100% { transform: translateX(0) rotate(0deg); }
    25% { transform: translateX(5px) rotate(2deg); }
    75% { transform: translateX(-5px) rotate(-2deg); }
}