/* ========================================
   基本設定
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Arial', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
    background: #fff;
    color: #000;
    overflow-x: hidden;
    line-height: 1.8;
}

@media (max-width: 768px) {
    body {
        cursor: default;
    }
}



/* ========================================
   エフェクト用オーバーレイ
======================================== */
.flash-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    opacity: 0;
    pointer-events: none;
    z-index: 9998;
}

/* ========================================
   ローディング画面
======================================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 1.2s ease;
}

.loader.fade-out {
    opacity: 0;
}

.daruma-container {
    width: 400px;
    height: 400px;
}

@media (max-width: 768px) {
    .daruma-container {
        width: 300px;
        height: 300px;
    }
}

.daruma-svg {
    width: 100%;
    height: 100%;
}

.daruma-path {
    fill: none;
    stroke: #000;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ========================================
   ナビゲーション
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 9000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo img {
    height: 40px;
    width: auto;
    display: block;
}

.logo-text {
    font-size: 24px;
    font-weight: 900;
    color: #000;
    letter-spacing: 0.1em;
    display: none;
}

.hamburger {
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: 9001;
}

.hamburger span {
    position: absolute;
    width: 100%;
    height: 3px;
    background: #000;
    transition: all 0.3s ease;
    left: 0;
    border-radius: 2px;
}

.hamburger span:nth-child(1) {
    top: 0;
}

.hamburger span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger span:nth-child(3) {
    bottom: 0;
}

.hamburger.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* メニューオーバーレイ */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: 8999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.menu-overlay.active {
    opacity: 1;
    pointer-events: all;
}

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

.menu-list {
    list-style: none;
    padding: 0;
}

.menu-list li {
    margin: 30px 0;
}

.menu-link {
    font-size: 8vw;
    font-weight: 900;
    color: #000;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
}

@media (min-width: 769px) {
    .menu-link {
        font-size: 3.5rem;
    }
}

.menu-en {
    font-size: 1em;
    line-height: 1;
}

.menu-jp {
    font-size: 0.35em;
    color: #666;
    letter-spacing: 0.1em;
}

.menu-link:hover {
    color: #666;
    transform: scale(1.05);
}

.menu-link:hover .menu-jp {
    color: #999;
}

.menu-sns {
    margin-top: 60px;
    display: flex;
    gap: 30px;
    justify-content: center;
}

.menu-sns a {
    font-size: 32px;
    color: #000;
    transition: all 0.3s ease;
}

.menu-sns a:hover {
    color: #666;
    transform: scale(1.2);
}

/* ========================================
   トップに戻るボタン
======================================== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #000;
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 8998;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.scroll-to-top.show {
    opacity: 1;
    pointer-events: all;
}

.scroll-to-top:hover {
    background: #333;
    transform: translateY(-5px);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

/* ========================================
   ヒーローセクション
======================================== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: #000;
}

/* 背景グリッドエフェクト */
.grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

/* ロゴコンテナ */
.logo-container {
    position: relative;
    z-index: 2;
    max-width: 800px;
    width: 90%;
    opacity: 0;
}

@media (max-width: 768px) {
    .logo-container {
        width: 85%;
        max-width: 400px;
    }
}

.hero-svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 40px rgba(255, 255, 255, 0.3));
}

/* SVGパスアニメーション */
.hero-svg path {
    fill: #fff;
    stroke: #fff;
    stroke-width: 0.5;
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
}

/* タグライン */
.tagline {
    position: absolute;
    bottom: 15%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 2;
    opacity: 0;
}

@media (max-width: 768px) {
    .tagline {
        bottom: 20%;
    }
}

.tagline h2 {
    font-size: clamp(1.5rem, 4vw, 3rem);
    color: #fff;
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .tagline h2 {
        letter-spacing: 0.2em;
    }
}

.tagline p {
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.1em;
}

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    opacity: 0;
}

.scroll-indicator::before {
    content: '';
    display: block;
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, transparent, #fff, transparent);
    margin: 0 auto 10px;
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% {
        transform: translateY(-10px);
        opacity: 0;
    }
    50% {
        transform: translateY(10px);
        opacity: 1;
    }
}

.scroll-indicator span {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* グローエフェクト */
.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.5;
    }
}

/* ========================================
   共通要素
======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 769px) {
    .container {
        padding: 0 40px;
    }
}

.section-title {
    font-size: 12vw;
    font-weight: 900;
    margin-bottom: 20px;
    color: #000 !important;
    letter-spacing: 0.05em;
}

@media (min-width: 769px) {
    .section-title {
        font-size: 6vw;
    }
}

.section-subtitle {
    font-size: 4vw;
    color: #999;
    margin-bottom: 60px;
    letter-spacing: 0.2em;
}

@media (min-width: 769px) {
    .section-subtitle {
        font-size: 2vw;
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
}

/* ========================================
   画像付きセクション
======================================== */
.section-with-image {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 60px;
}

@media (min-width: 769px) {
    .section-with-image {
        flex-direction: row;
        align-items: center;
        gap: 60px;
    }
    
    .section-with-image.reverse {
        flex-direction: row-reverse;
    }
}

.image-container {
    flex: 1;
    border-radius: 20px;
    overflow: hidden;
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    min-height: 300px;
}

.text-container {
    flex: 1;
}

/* ========================================
   コンセプトセクション
======================================== */
.concept-section {
    padding: 100px 0;
    background: #fff;
}

@media (max-width: 768px) {
    .concept-section {
        padding: 80px 0;
    }
}

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

.lead-text {
    font-size: 5vw;
    font-weight: 700;
    margin-bottom: 40px;
    line-height: 1.6;
    color: #000;
}

@media (min-width: 769px) {
    .lead-text {
        font-size: 1.4rem;
    }
}

.concept-content p {
    font-size: 4.2vw;
    margin-bottom: 30px;
    color: #333;
}

@media (min-width: 769px) {
    .concept-content p {
        font-size: 1.1rem;
    }
}

.concept-content strong {
    color: #000;
    font-weight: 700;
}

/* ========================================
   事業内容セクション
======================================== */
.business-section {
    padding: 100px 0;
    background: #f8f8f8;
}

@media (max-width: 768px) {
    .business-section {
        padding: 80px 0;
    }
}

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

.business-content p {
    font-size: 4.2vw;
    margin-bottom: 30px;
    color: #333;
}

@media (min-width: 769px) {
    .business-content p {
        font-size: 1.1rem;
    }
}

.business-content strong {
    color: #000;
    font-weight: 700;
}

/* ========================================
   サービスセクション
======================================== */
.service-section {
    padding: 100px 0;
    background: #fff;
}

@media (max-width: 768px) {
    .service-section {
        padding: 80px 0;
    }
}

.service-item {
    margin-bottom: 80px;
    padding: 40px 0;
    border-bottom: 1px solid #eee;
}

.service-item:last-child {
    border-bottom: none;
}

@media (max-width: 768px) {
    .service-item {
        margin-bottom: 60px;
        padding: 30px 0;
    }
}

.service-header {
    margin-bottom: 30px;
}

.service-number {
    font-size: 10vw;
    font-weight: 900;
    color: #000;
    opacity: 0.1;
    margin-bottom: 20px;
    line-height: 1;
}

@media (min-width: 769px) {
    .service-number {
        font-size: 5rem;
    }
}

.service-title {
    font-size: 6vw;
    font-weight: 900;
    margin-bottom: 30px;
    color: #000;
}

@media (min-width: 769px) {
    .service-title {
        font-size: 2.5rem;
    }
}

.service-body {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

@media (min-width: 769px) {
    .service-body {
        flex-direction: row;
        align-items: flex-start;
        gap: 40px;
    }
}

.service-image {
    width: 100%;
    flex-shrink: 0;
    border-radius: 15px;
    overflow: hidden;
}

@media (min-width: 769px) {
    .service-image {
        width: 45%;
        max-width: 45%;
    }
}

.service-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    min-height: 250px;
}

@media (min-width: 769px) {
    .service-image img {
        min-height: 300px;
    }
}

.service-description {
    width: 100%;
}

@media (min-width: 769px) {
    .service-description {
        width: 55%;
        flex-shrink: 1;
    }
}

.service-description p {
    font-size: 4.2vw;
    margin-bottom: 20px;
    color: #333;
    line-height: 1.8;
}

@media (min-width: 769px) {
    .service-description p {
        font-size: 1.1rem;
    }
}

/* サービスボディのリバース（偶数番号用） */
@media (min-width: 769px) {
    .service-body.reverse {
        flex-direction: row-reverse;
    }
}

/* ========================================
   実績セクション
======================================== */
.works-section {
    padding: 100px 0;
    background: #fff;
}

@media (max-width: 768px) {
    .works-section {
        padding: 80px 0;
    }
}

.works-header {
    margin-bottom: 60px;
}

.works-section .section-title {
    color: #000 !important;
}

.works-section .section-subtitle {
    color: #999;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .works-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 30px;
    }
}

.works-logo-item {
    background: transparent;
    padding: 30px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    min-height: 150px;
    border: none;
}

@media (max-width: 768px) {
    .works-logo-item {
        padding: 20px;
        min-height: 120px;
    }
}

.works-logo-item:hover {
    transform: scale(1.05);
    background: rgba(0, 0, 0, 0.02);
}

.works-logo-item img {
    max-width: 100%;
    max-height: 100px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(0%);
    opacity: 1;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .works-logo-item img {
        max-height: 80px;
    }
}

.works-logo-item:hover img {
    transform: scale(1.1);
}

.works-note {
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    margin-top: 20px;
}

/* ========================================
   会社情報セクション
======================================== */
.company-section {
    padding: 100px 0;
    background: #fff;
}

@media (max-width: 768px) {
    .company-section {
        padding: 80px 0;
    }
}

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

.company-list {
    background: #fff;
}

.company-item {
    display: flex;
    flex-direction: column;
    padding: 30px 0;
    border-bottom: 1px solid #e0e0e0;
}

@media (min-width: 769px) {
    .company-item {
        flex-direction: row;
    }
}

.company-item:last-child {
    border-bottom: none;
}

.company-item dt {
    font-size: 1rem;
    font-weight: 700;
    color: #000;
    margin-bottom: 15px;
    min-width: 180px;
}

@media (min-width: 769px) {
    .company-item dt {
        margin-bottom: 0;
    }
}

.company-item dd {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    flex: 1;
}

.company-item dd a {
    color: #000;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.company-item dd a:hover {
    color: #666;
}

/* ========================================
   会社案内ページ
======================================== */
.about-page {
    min-height: 100vh;
    padding: 120px 0 60px;
    background: #fff;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 769px) {
    .about-content {
        padding: 0 40px;
    }
}

.about-title {
    font-size: 8vw;
    font-weight: 900;
    margin-bottom: 20px;
    color: #000;
    letter-spacing: 0.05em;
}

@media (min-width: 769px) {
    .about-title {
        font-size: 4rem;
    }
}

.about-subtitle {
    font-size: 1.2rem;
    color: #999;
    margin-bottom: 60px;
    letter-spacing: 0.1em;
}

.about-section {
    margin-bottom: 80px;
}

.about-section h2 {
    font-size: 2rem;
    font-weight: 900;
    color: #000;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid #000;
}

@media (max-width: 768px) {
    .about-section h2 {
        font-size: 1.5rem;
    }
}

.about-section h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #000;
    margin: 30px 0 15px;
}

.about-section p {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 20px;
}

.about-section ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

.about-section ul li {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 10px;
}

.about-vision-box {
    background: #f8f8f8;
    padding: 40px;
    border-radius: 10px;
    margin: 30px 0;
}

@media (max-width: 768px) {
    .about-vision-box {
        padding: 30px 20px;
    }
}

.about-vision-box p {
    font-size: 1.2rem;
    font-weight: 700;
    color: #000;
    text-align: center;
    line-height: 2;
    margin: 0;
}

.about-back-link {
    text-align: center;
    margin-top: 60px;
}

.about-back-link a {
    display: inline-block;
    padding: 15px 40px;
    background: #000;
    color: #fff;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
}

.about-back-link a:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ========================================
   フッターリンク
======================================== */
.footer-links {
    margin: 30px 0 20px;
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
}

.footer-links a {
    color: #999;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

.footer-links span {
    color: #666;
}

/* ========================================
   プライバシーポリシーページ
======================================== */
.privacy-page {
    min-height: 100vh;
    padding: 120px 0 60px;
    background: #fff;
}

.privacy-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 769px) {
    .privacy-content {
        padding: 0 40px;
    }
}

.privacy-title {
    font-size: 8vw;
    font-weight: 900;
    margin-bottom: 20px;
    color: #000;
    letter-spacing: 0.05em;
}

@media (min-width: 769px) {
    .privacy-title {
        font-size: 4rem;
    }
}

.privacy-subtitle {
    font-size: 1.2rem;
    color: #999;
    margin-bottom: 60px;
    letter-spacing: 0.1em;
}

.privacy-text {
    margin-bottom: 60px;
}

.privacy-text p {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 20px;
}

.privacy-section {
    margin-bottom: 50px;
}

.privacy-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #000;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #000;
}

.privacy-section h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #000;
    margin: 30px 0 15px;
}

.privacy-section p,
.privacy-section li {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 15px;
}

.privacy-section ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

.privacy-section ul li {
    list-style-type: disc;
    margin-bottom: 10px;
}

.privacy-back-link {
    text-align: center;
    margin-top: 60px;
}

.privacy-back-link a {
    display: inline-block;
    padding: 15px 40px;
    background: #000;
    color: #fff;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
}

.privacy-back-link a:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}


/* ========================================
   お問い合わせセクション
======================================== */
.contact-section {
    padding: 100px 0;
    background: #fff;
}

@media (max-width: 768px) {
    .contact-section {
        padding: 80px 0;
    }
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
}

.contact-lead {
    font-size: 5vw;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: #000;
}

@media (min-width: 769px) {
    .contact-lead {
        font-size: 1.5rem;
    }
}

.contact-form {
    background: #f8f8f8;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

@media (max-width: 768px) {
    .contact-form {
        padding: 30px 20px;
    }
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #000;
}

.required {
    color: #000;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
    background: #fff;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #000;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 20px;
    background: #000;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.1em;
}

.submit-btn:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ========================================
   フッター
======================================== */
.footer {
    padding: 100px 0;
    text-align: center;
    background: #000;
    color: #fff;
}

@media (max-width: 768px) {
    .footer {
        padding: 80px 0;
    }
}

.footer-title {
    font-size: 10vw;
    font-weight: 900;
    margin-bottom: 30px;
    line-height: 1.2;
}

@media (min-width: 769px) {
    .footer-title {
        font-size: 5rem;
    }
}

.footer-sns {
    display: flex;
    gap: 30px;
    justify-content: center;
    margin: 40px 0;
}

.footer-sns a {
    font-size: 32px;
    color: #fff;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .footer-sns a {
        font-size: 28px;
    }
}

.footer-sns a:hover {
    color: #999;
    transform: scale(1.2);
}

.footer-company {
    font-size: 3.5vw;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

@media (min-width: 769px) {
    .footer-company {
        font-size: 1rem;
    }
}

.footer-copyright {
    margin-top: 40px;
    font-size: 0.9rem;
    color: #666;
    text-align: center;
}