/* ===== リセット & ベーススタイル ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #0a0a0a;
    --dark-gray: #1a1a1a;
    --blue: #2563eb;
    --blue-light: #3b82f6;
    --orange: #f97316;
    --orange-light: #fb923c;
    --white: #ffffff;
    --gray: #9ca3af;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--black);
    color: var(--white);
    overflow-x: hidden;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.main-container {
    min-height: 100vh;
    position: relative;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 大きな画面用のコンテナ拡張 */
@media (min-width: 1600px) {
    .container {
        max-width: 1600px;
        padding: 0 3rem;
    }
}

@media (min-width: 1920px) {
    .container {
        max-width: 1800px;
        padding: 0 4rem;
    }
}

@media (min-width: 2560px) {
    .container {
        max-width: 2200px;
        padding: 0 5rem;
    }
}

/* ===== ヘッダー ===== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 3rem;
    background: rgba(10,10,10,0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.header-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin: 0;
}

.title-blue {
    color: var(--blue-light);
    text-shadow: 0 0 20px rgba(37,99,235,0.5);
}

.title-orange {
    color: var(--orange);
    text-shadow: 0 0 20px rgba(249,115,22,0.5);
    margin: 0 0.5rem;
}

/* ===== 名刺読み込みバー ===== */
.businesscard-bar {
    position: static;
    padding: 0.25rem 0;
    margin-top: 0.25rem;
    animation: slideDown 0.3s ease-out;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.businesscard-bar-content {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    letter-spacing: 0.05em;
    line-height: 1.2;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== ホームセクション（丸ベースのデザイン） ===== */
.home-section {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    background: var(--black);
    padding-top: 80px;
    transition: padding-top 0.3s ease-out;
}

.home-section.has-businesscard-bar {
    padding-top: 120px;
}

/* 背景画像 */
.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/homecell1.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.25;
    z-index: 1;
}

.background-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(10,10,10,0.9) 70%, rgba(10,10,10,1) 100%);
}

/* 大きな淡い光の球体（夜の街明かり風） */
.ambient-lights {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.light-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: ambientPulse 8s ease-in-out infinite;
    opacity: 0.4;
}

.light-orb.medium {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(37,99,235,0.6) 0%, transparent 70%);
}

.light-orb.large {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(249,115,22,0.5) 0%, transparent 70%);
}

.light-orb.xlarge {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(139,92,246,0.4) 0%, transparent 70%);
}

@keyframes ambientPulse {
    0%, 100% {
        transform: scale(1) translateY(0);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.1) translateY(-20px);
        opacity: 0.6;
    }
}

.light-orb:nth-child(1) { animation-delay: 0s; animation-duration: 10s; }
.light-orb:nth-child(2) { animation-delay: 2s; animation-duration: 12s; }
.light-orb:nth-child(3) { animation-delay: 4s; animation-duration: 9s; }
.light-orb:nth-child(4) { animation-delay: 1s; animation-duration: 11s; }
.light-orb:nth-child(5) { animation-delay: 3s; animation-duration: 13s; }

/* タイトルコンテナ削除 */

/* 丸のコンテナ */
.circles-container {
    position: relative;
    width: 100%;
    height: 100vh;
    z-index: 10;
}

/* 中央の自己紹介円形ウィンドウ */
.center-intro-window {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(37,99,235,0.15) 0%, rgba(249,115,22,0.1) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 3px solid rgba(255,255,255,0.25);
    box-shadow: 0 0 60px rgba(37,99,235,0.4), 0 0 100px rgba(37,99,235,0.2), inset 0 0 60px rgba(255,255,255,0.05);
    overflow: hidden;
    z-index: 50;
    animation: bubbleFloat 6s ease-in-out infinite;
}

/* 大きな画面用のスケールアップ */
@media (min-width: 1400px) {
    .center-intro-window {
        width: 600px;
        height: 600px;
    }
    
    .slide-title {
        font-size: 2.8rem;
    }
    
    .slide-text {
        font-size: 1.3rem;
        line-height: 1.7;
    }
    
    .nav-circle.size-medium {
        width: 180px;
        height: 180px;
    }
    
    .size-medium .circle-icon svg {
        width: 50px;
        height: 50px;
    }
    
    .size-medium .circle-label {
        font-size: 1.1rem;
    }
}

@media (min-width: 1800px) {
    .center-intro-window {
        width: 700px;
        height: 700px;
    }
    
    .slide-content {
        padding: 3rem;
    }
    
    .slide-title {
        font-size: 3.5rem;
        margin-bottom: 1.5rem;
    }
    
    .slide-text {
        font-size: 1.6rem;
        line-height: 1.8;
    }
    
    .nav-circle.size-medium {
        width: 200px;
        height: 200px;
    }
    
    .size-medium .circle-icon svg {
        width: 60px;
        height: 60px;
    }
    
    .size-medium .circle-label {
        font-size: 1.3rem;
    }
}

@media (min-width: 2560px) {
    .center-intro-window {
        width: 800px;
        height: 800px;
    }
    
    .slide-content {
        padding: 4rem;
    }
    
    .slide-title {
        font-size: 4rem;
        margin-bottom: 2rem;
    }
    
    .slide-text {
        font-size: 1.8rem;
        line-height: 2;
    }
    
    .nav-circle.size-medium {
        width: 220px;
        height: 220px;
    }
    
    .size-medium .circle-icon svg {
        width: 70px;
        height: 70px;
    }
    
    .size-medium .circle-label {
        font-size: 1.4rem;
    }
    
    .main-header {
        padding: 2rem 5rem;
    }
    
    .header-title {
        font-size: 2.5rem;
    }
}

@keyframes bubbleFloat {
    0%, 100% {
        transform: translate(-50%, -50%) translateY(0);
    }
    50% {
        transform: translate(-50%, -50%) translateY(-15px);
    }
}

.intro-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.intro-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.intro-slide.active {
    opacity: 1;
}

.slide-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.3;
    z-index: 1;
}

/* ===== ニュースセクション ===== */
.news-wrapper {
    width: 100%;
    position: relative;
}
.news-slider-viewport {
    overflow: hidden;
    width: 100%;
}
.news-slider {
    display: flex;
    gap: 1rem;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
    padding: 1rem 0;
}
.news-slide {
    position: relative;
    min-width: 320px;
    max-width: 720px;
    width: 80%;
    border-radius: 12px;
    overflow: hidden;
    flex: 0 0 auto;
    background: #111;
    box-shadow: 0 8px 30px rgba(0,0,0,0.6);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}
.news-slide img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}
.news-overlay {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 60%;
    pointer-events: none;
    mix-blend-mode: normal;
    filter: blur(18px) saturate(120%);
}
.news-content {
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 16px;
    z-index: 30;
    color: var(--white);
    text-shadow: 0 6px 18px rgba(0,0,0,0.6);
}
.news-content h3 {
    margin: 0 0 6px 0;
    font-size: 1.2rem;
}
.news-content p {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.95;
}
.news-indicators {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 10px;
}
.news-indicators .dot {
    width: 10px;
    height: 10px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
}
.news-indicators .dot.active {
    background: var(--blue-light);
    box-shadow: 0 0 8px rgba(59,130,246,0.5);
}

@media (min-width: 900px) {
    .news-slide img { height: 300px; }
    .news-slide { width: 45%; }
}

@media (min-width: 1400px) {
    .news-slide { width: 33%; }
}


.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
}

.slide-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
    text-shadow: 0 2px 8px rgba(0,0,0,0.8);
}

.slide-text {
    font-size: 1.2vw;
    line-height: 1.6;
    color: rgba(255,255,255,0.9);
    text-shadow: 0 1px 4px rgba(0,0,0,0.8);
}

/* スライドインジケーター */
.slide-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: var(--orange);
    box-shadow: 0 0 10px var(--orange);
    transform: scale(1.2);
}

.indicator:hover {
    background: rgba(255,255,255,0.6);
}

/* 丸の基本スタイル */
.circle {
    position: absolute;
    border-radius: 50%;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ナビゲーション用の丸（クリック可能） */
.nav-circle {
    background: linear-gradient(135deg, rgba(37,99,235,0.25) 0%, rgba(249,115,22,0.15) 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px solid rgba(255,255,255,0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(37,99,235,0.3), 0 0 40px rgba(37,99,235,0.1);
    animation: floatIn 1s ease-out backwards, starGlow 3s ease-in-out infinite;
    
    /* ゆったりと遠くまで移動するトランジション */
    transition: top 4s cubic-bezier(0.25, 0.1, 0.25, 1),
                left 4s cubic-bezier(0.25, 0.1, 0.25, 1),
                transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.4s ease,
                border-color 0.4s ease,
                box-shadow 0.4s ease;
}

/* サイズバリエーション */
.nav-circle.size-tiny { width: 100px; height: 100px; }
.nav-circle.size-small { width: 130px; height: 130px; }
.nav-circle.size-medium { width: 160px; height: 160px; }
.nav-circle.size-large { width: 190px; height: 190px; }
.nav-circle.size-xlarge { width: 220px; height: 220px; }

/* 星のように光るアニメーション */
@keyframes starGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(37,99,235,0.3), 0 0 40px rgba(37,99,235,0.1);
    }
    50% {
        box-shadow: 0 0 30px rgba(37,99,235,0.5), 0 0 60px rgba(37,99,235,0.2), 0 0 80px rgba(249,115,22,0.1);
    }
}

.nav-circle:nth-child(1) { animation-delay: 0.1s, 0s; }
.nav-circle:nth-child(2) { animation-delay: 0.2s, 0.8s; }
.nav-circle:nth-child(3) { animation-delay: 0.3s, 1.5s; }
.nav-circle:nth-child(4) { animation-delay: 0.4s, 0.5s; }
.nav-circle:nth-child(5) { animation-delay: 0.5s, 2s; }
.nav-circle:nth-child(6) { animation-delay: 0.6s, 1s; }

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.nav-circle:hover {
    transform: scale(1.15);
    background: linear-gradient(135deg, rgba(37,99,235,0.45) 0%, rgba(249,115,22,0.3) 100%);
    border-color: rgba(255,255,255,0.4);
    box-shadow: 0 0 40px rgba(37,99,235,0.6), 0 0 70px rgba(37,99,235,0.3), 0 0 100px rgba(249,115,22,0.2);
}

/* 各メニューごとに異なる色 */
.nav-circle[data-section="profile"] {
    background: linear-gradient(135deg, rgba(37,99,235,0.3) 0%, rgba(59,130,246,0.2) 100%);
    border-color: rgba(59,130,246,0.25);
    box-shadow: 0 0 30px rgba(37,99,235,0.5), 0 0 50px rgba(37,99,235,0.25);
}

.nav-circle[data-section="blog"] {
    background: linear-gradient(135deg, rgba(249,115,22,0.3) 0%, rgba(251,146,60,0.2) 100%);
    border-color: rgba(249,115,22,0.25);
    box-shadow: 0 0 30px rgba(249,115,22,0.5), 0 0 50px rgba(249,115,22,0.25);
}

.nav-circle[data-section="awards"] {
    background: linear-gradient(135deg, rgba(234,179,8,0.3) 0%, rgba(250,204,21,0.2) 100%);
    border-color: rgba(234,179,8,0.25);
    box-shadow: 0 0 30px rgba(234,179,8,0.5), 0 0 50px rgba(234,179,8,0.25);
}

.nav-circle[data-section="certifications"] {
    background: linear-gradient(135deg, rgba(168,85,247,0.3) 0%, rgba(192,132,252,0.2) 100%);
    border-color: rgba(168,85,247,0.25);
    box-shadow: 0 0 30px rgba(168,85,247,0.5), 0 0 50px rgba(168,85,247,0.25);
}

.nav-circle[data-section="projects"] {
    background: linear-gradient(135deg, rgba(34,197,94,0.3) 0%, rgba(74,222,128,0.2) 100%);
    border-color: rgba(34,197,94,0.25);
    box-shadow: 0 0 30px rgba(34,197,94,0.5), 0 0 50px rgba(34,197,94,0.25);
}

.nav-circle[data-section="contact"] {
    background: linear-gradient(135deg, rgba(236,72,153,0.3) 0%, rgba(244,114,182,0.2) 100%);
    border-color: rgba(236,72,153,0.25);
    box-shadow: 0 0 30px rgba(236,72,153,0.5), 0 0 50px rgba(236,72,153,0.25);
}

/* ホバー時に各色を強調 */
.nav-circle[data-section="profile"]:hover {
    background: linear-gradient(135deg, rgba(37,99,235,0.5) 0%, rgba(59,130,246,0.35) 100%);
    box-shadow: 0 0 40px rgba(37,99,235,0.7), 0 0 70px rgba(37,99,235,0.4);
}

.nav-circle[data-section="blog"]:hover {
    background: linear-gradient(135deg, rgba(249,115,22,0.5) 0%, rgba(251,146,60,0.35) 100%);
    box-shadow: 0 0 40px rgba(249,115,22,0.7), 0 0 70px rgba(249,115,22,0.4);
}

.nav-circle[data-section="awards"]:hover {
    background: linear-gradient(135deg, rgba(234,179,8,0.5) 0%, rgba(250,204,21,0.35) 100%);
    box-shadow: 0 0 40px rgba(234,179,8,0.7), 0 0 70px rgba(234,179,8,0.4);
}

.nav-circle[data-section="certifications"]:hover {
    background: linear-gradient(135deg, rgba(168,85,247,0.5) 0%, rgba(192,132,252,0.35) 100%);
    box-shadow: 0 0 40px rgba(168,85,247,0.7), 0 0 70px rgba(168,85,247,0.4);
}

.nav-circle[data-section="projects"]:hover {
    background: linear-gradient(135deg, rgba(34,197,94,0.5) 0%, rgba(74,222,128,0.35) 100%);
    box-shadow: 0 0 40px rgba(34,197,94,0.7), 0 0 70px rgba(34,197,94,0.4);
}

.nav-circle[data-section="contact"]:hover {
    background: linear-gradient(135deg, rgba(236,72,153,0.5) 0%, rgba(244,114,182,0.35) 100%);
    box-shadow: 0 0 40px rgba(236,72,153,0.7), 0 0 70px rgba(236,72,153,0.4);
}

.circle-content {
    text-align: center;
    pointer-events: none;
}

.circle-icon {
    margin-bottom: 0.5rem;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.8));
    color: rgba(255,255,255,0.9);
}

.circle-icon svg {
    width: 100%;
    height: auto;
    stroke: currentColor;
}

.size-tiny .circle-icon svg { width: 28px; height: 28px; }
.size-small .circle-icon svg { width: 36px; height: 36px; }
.size-medium .circle-icon svg { width: 40px; height: 40px; }
.size-large .circle-icon svg { width: 48px; height: 48px; }
.size-xlarge .circle-icon svg { width: 52px; height: 52px; }

.circle-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}

.size-tiny .circle-label { font-size: 0.65rem; }
.size-small .circle-label { font-size: 0.75rem; }
.size-medium .circle-label { font-size: 0.85rem; }
.size-large .circle-label { font-size: 0.95rem; }
.size-xlarge .circle-label { font-size: 1.05rem; }

/* 装飾用の丸（星のような光る丸） */
.star-circle {
    background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
    border: none;
    pointer-events: none;
    animation: twinkle 4s ease-in-out infinite, float 8s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(255,255,255,0.6), 0 0 20px rgba(255,255,255,0.3);
}

.star-circle.tiny { width: 8px; height: 8px; }
.star-circle.small { width: 15px; height: 15px; }
.star-circle.medium { width: 25px; height: 25px; }

@keyframes twinkle {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* 単色の丸 */
.solid-circle {
    pointer-events: none;
    animation: solidGlow 5s ease-in-out infinite, float 10s ease-in-out infinite;
}

.solid-circle.tiny { width: 12px; height: 12px; }
.solid-circle.small { width: 20px; height: 20px; }
.solid-circle.medium { width: 35px; height: 35px; }

.blue-circle {
    background: radial-gradient(circle, rgba(37,99,235,0.8) 0%, rgba(37,99,235,0.3) 70%, transparent 100%);
    box-shadow: 0 0 15px rgba(37,99,235,0.5), 0 0 30px rgba(37,99,235,0.2);
}

.orange-circle {
    background: radial-gradient(circle, rgba(249,115,22,0.8) 0%, rgba(249,115,22,0.3) 70%, transparent 100%);
    box-shadow: 0 0 15px rgba(249,115,22,0.5), 0 0 30px rgba(249,115,22,0.2);
}

.white-circle {
    background: radial-gradient(circle, rgba(255,255,255,0.6) 0%, rgba(255,255,255,0.2) 70%, transparent 100%);
    box-shadow: 0 0 15px rgba(255,255,255,0.4), 0 0 30px rgba(255,255,255,0.1);
}

@keyframes solidGlow {
    0%, 100% {
        opacity: 0.5;
        filter: brightness(1);
    }
    50% {
        opacity: 0.9;
        filter: brightness(1.3);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-15px) translateX(10px);
    }
    50% {
        transform: translateY(-10px) translateX(-8px);
    }
    75% {
        transform: translateY(-20px) translateX(5px);
    }
}

/* 各丸に異なるアニメーションディレイ */
.deco-circle:nth-child(7) { animation-delay: 0s, 0s; animation-duration: 4s, 7s; }
.deco-circle:nth-child(8) { animation-delay: 1s, 1s; animation-duration: 3.5s, 8s; }
.deco-circle:nth-child(9) { animation-delay: 2s, 0.5s; animation-duration: 4.5s, 6.5s; }
.deco-circle:nth-child(10) { animation-delay: 0.5s, 1.5s; animation-duration: 3s, 9s; }
.deco-circle:nth-child(11) { animation-delay: 1.5s, 2s; animation-duration: 4.2s, 7.5s; }
.deco-circle:nth-child(12) { animation-delay: 2.5s, 0.8s; animation-duration: 3.8s, 8.5s; }
.deco-circle:nth-child(13) { animation-delay: 0.8s, 2.5s; animation-duration: 4.3s, 6.8s; }
.deco-circle:nth-child(14) { animation-delay: 1.8s, 1.2s; animation-duration: 3.3s, 7.8s; }
.deco-circle:nth-child(15) { animation-delay: 2.2s, 0.3s; animation-duration: 4.7s, 9.2s; }
.deco-circle:nth-child(16) { animation-delay: 0.3s, 2.8s; animation-duration: 3.6s, 8.3s; }
.deco-circle:nth-child(17) { animation-delay: 1.3s, 1.8s; animation-duration: 4.1s, 7.1s; }
.deco-circle:nth-child(18) { animation-delay: 2.3s, 0.6s; animation-duration: 3.9s, 6.9s; }
.deco-circle:nth-child(19) { animation-delay: 0.6s, 2.3s; animation-duration: 4.4s, 8.8s; }
.deco-circle:nth-child(20) { animation-delay: 1.6s, 1.6s; animation-duration: 3.4s, 7.4s; }

.solid-circle:nth-child(21) { animation-delay: 0.4s, 1.1s; animation-duration: 5.5s, 9.5s; }
.solid-circle:nth-child(22) { animation-delay: 1.4s, 2.1s; animation-duration: 4.8s, 10.5s; }
.solid-circle:nth-child(23) { animation-delay: 2.4s, 0.7s; animation-duration: 5.2s, 8.9s; }
.solid-circle:nth-child(24) { animation-delay: 0.7s, 2.4s; animation-duration: 4.6s, 11s; }
.solid-circle:nth-child(25) { animation-delay: 1.7s, 1.4s; animation-duration: 5.8s, 9.8s; }
.solid-circle:nth-child(26) { animation-delay: 2.7s, 0.9s; animation-duration: 4.9s, 10.2s; }

/* ===== 旧ヒーローセクション削除 ===== */

/* ===== コンテンツセクション ===== */
.content-section {
    margin-top: 1rem;
    padding: 2rem 0;
    background: var(--black);
    position: relative;
}

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

.content-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 2rem;
    color: var(--white);
    border-bottom: 3px solid var(--orange);
    padding-bottom: 1rem;
    display: inline-block;
}

.content-body {
    font-size: 1.2rem;
    color: var(--gray);
    line-height: 1.8;
}

/* ===== プロフィールセクション ===== */
.profile-card {
    position: relative;
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    overflow: hidden;
}

.profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/profileback.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: blur(3px) brightness(0.4) contrast(0.8) saturate(0.6);
    opacity: 0.6;
    z-index: 1;
    pointer-events: none;
}

.profile-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            rgba(0, 0, 0, 0.15),
            rgba(0, 0, 0, 0.15) 2px,
            transparent 2px,
            transparent 4px
        ),
        repeating-linear-gradient(
            90deg,
            rgba(0, 0, 0, 0.15),
            rgba(0, 0, 0, 0.15) 2px,
            transparent 2px,
            transparent 4px
        );
    z-index: 2;
    pointer-events: none;
    border-radius: 1rem;
}

.profile-intro-wrapper {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    align-items: flex-start;
    margin-bottom: 2rem;
    position: relative;
    z-index: 3;
}

.profile-image-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255,255,255,0.1);
    box-shadow: 0 0 30px rgba(0,0,0,0.5), inset 0 0 30px rgba(0,0,0,0.3), 0 0 60px rgba(0,0,0,0.4);
    filter: drop-shadow(0 0 20px rgba(0,0,0,0.4)) drop-shadow(0 0 40px rgba(0,0,0,0.3));
    flex-shrink: 0;
}

.profile-intro-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.profile-header {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--orange);
}

.profile-header h3 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.profile-subtitle {
    font-size: 1.2rem;
    color: var(--blue-light);
}

.profile-intro-content > p {
    color: var(--gray);
    line-height: 1.8;
}

.profile-section {
    margin-bottom: 2rem;
    position: relative;
    z-index: 3;
}

.profile-section h4 {
    font-size: 1.5rem;
    color: var(--orange);
    margin-bottom: 1rem;
}

.profile-section p {
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.tech-list {
    list-style: none;
    padding-left: 0;
}

.tech-list li {
    padding: 0.5rem 0;
    color: var(--gray);
    border-left: 3px solid var(--blue);
    padding-left: 1rem;
    margin-bottom: 0.5rem;
}

/* レスポンシブ調整 */
@media (max-width: 768px) {
    .profile-intro-wrapper {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .profile-header h3 {
        font-size: 1.8rem;
    }
}

/* ===== タイムラインセクション ===== */
/* 横並びラッパー */
.dual-timeline-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 1200px) {
    .dual-timeline-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
    
    /* 横並び時は一列表示に変更 */
    .dual-timeline-wrapper .timeline-container::before {
        left: 20px;
        transform: none;
    }
    
    .dual-timeline-wrapper .timeline-item {
        flex-direction: row !important;
    }
    
    .dual-timeline-wrapper .timeline-item:nth-child(odd) {
        flex-direction: row !important;
    }
    
    .dual-timeline-wrapper .timeline-item:nth-child(even) {
        flex-direction: row !important;
    }
    
    .dual-timeline-wrapper .timeline-year {
        flex: 0 0 auto;
        min-width: 100px;
        text-align: left !important;
        padding-left: 50px;
        padding-right: 0;
    }
    
    .dual-timeline-wrapper .timeline-dot {
        position: absolute;
        left: 11px;
    }
    
    .dual-timeline-wrapper .timeline-content {
        flex: 1;
        margin-left: 1rem !important;
        margin-right: 0 !important;
    }
    
    .dual-timeline-wrapper .timeline-item:nth-child(odd) .timeline-content {
        margin-left: 1rem !important;
        margin-right: 0 !important;
    }
    
    .dual-timeline-wrapper .timeline-item:nth-child(even) .timeline-content {
        margin-left: 1rem !important;
        margin-right: 0 !important;
    }
}

.timeline-section {
    width: 100%;
}

.timeline-section .content-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
}

.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--blue-light) 0%, var(--orange) 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    flex: 0 0 45%;
    text-align: center;
    font-size: 1rem;
    font-weight: bold;
    color: var(--blue-light);
    padding: 0 1rem;
}

.timeline-item:nth-child(even) .timeline-year {
    text-align: center;
}

.timeline-dot {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--blue-light) 0%, var(--orange) 100%);
    border-radius: 50%;
    border: 4px solid rgba(10,10,10,0.9);
    box-shadow: 0 0 20px rgba(37,99,235,0.6);
    z-index: 2;
    position: relative;
    animation: timelinePulse 2s ease-in-out infinite;
}

@keyframes timelinePulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(37,99,235,0.6);
    }
    50% {
        box-shadow: 0 0 30px rgba(37,99,235,0.9), 0 0 40px rgba(249,115,22,0.5);
    }
}

/* 強調表示用のドット */
.timeline-dot.highlight-dot {
    background: linear-gradient(135deg, var(--orange) 0%, #fbbf24 100%);
    box-shadow: 0 0 25px rgba(249,115,22,0.8);
    animation: highlightPulse 2s ease-in-out infinite;
}

@keyframes highlightPulse {
    0%, 100% {
        box-shadow: 0 0 25px rgba(249,115,22,0.8);
    }
    50% {
        box-shadow: 0 0 35px rgba(249,115,22,1), 0 0 45px rgba(251,191,36,0.6);
    }
}

.timeline-content {
    flex: 0 0 45%;
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 0.8rem;
    padding: 1rem 1.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

/* 強調表示用のコンテンツ */
.timeline-highlight .timeline-content {
    background: linear-gradient(135deg, rgba(249,115,22,0.15) 0%, rgba(251,191,36,0.1) 100%);
    border: 2px solid rgba(249,115,22,0.5);
    box-shadow: 0 5px 20px rgba(249,115,22,0.2);
}

.timeline-highlight .timeline-content:hover {
    border-color: var(--orange);
    box-shadow: 0 8px 30px rgba(249,115,22,0.4);
}

.timeline-highlight .timeline-year {
    color: var(--orange);
    font-weight: 800;
}

.timeline-highlight .timeline-event {
    color: #fbbf24;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 1rem;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: 1rem;
}

.timeline-content:hover {
    transform: translateY(-3px);
    border-color: var(--blue-light);
    box-shadow: 0 8px 25px rgba(37,99,235,0.3);
}

.timeline-event {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin: 0 0 0.5rem 0;
}

.timeline-description {
    font-size: 0.9rem;
    color: var(--gray);
    margin: 0;
    line-height: 1.5;
}

/* モバイル対応 */
@media (max-width: 768px) {
    .timeline-container::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: row;
        padding-left: 0;
    }
    
    .timeline-year {
        flex: 0 0 auto;
        min-width: 100px;
        text-align: left;
        font-size: 1rem;
        padding-left: 50px;
    }
    
    .timeline-dot {
        position: absolute;
        left: 11px;
    }
    
    .timeline-content {
        flex: 1;
        margin-left: 1rem !important;
        margin-right: 0 !important;
    }
    
    .timeline-item:nth-child(even) .timeline-year {
        text-align: left;
    }
}

/* ===== ブログセクション ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--orange);
    box-shadow: 0 10px 30px rgba(249,115,22,0.3);
}

.blog-card h3 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.blog-date {
    font-size: 0.9rem;
    color: var(--orange);
    margin-bottom: 1rem;
}

.blog-card p:last-child {
    color: var(--gray);
}

.blog-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

/* ===== もっと見るボタン ===== */
.view-more-container {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}

.view-more-btn {
    background: linear-gradient(135deg, var(--blue-light) 0%, var(--orange) 100%);
    color: var(--white);
    border: none;
    padding: 1rem 3rem;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(37,99,235,0.3);
}

.view-more-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(37,99,235,0.5);
}

.view-more-btn.hidden {
    display: none;
}

/* ===== データなしメッセージ ===== */
.no-data-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    font-size: 1.5rem;
    color: var(--gray);
    background: rgba(26,26,26,0.5);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    border: 2px dashed rgba(255,255,255,0.1);
    margin: 2rem 0;
}

/* ===== 受賞歴セクション ===== */
.awards-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.award-item {
    display: flex;
    gap: 2rem;
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.award-item:hover {
    border-color: var(--blue);
    box-shadow: 0 10px 30px rgba(37,99,235,0.3);
}

.award-year {
    font-size: 2rem;
    font-weight: bold;
    color: var(--orange);
    min-width: 100px;
}

.award-content h3 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.award-content p {
    color: var(--gray);
}

/* ===== 資格セクション ===== */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.cert-card {
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-5px);
    border-color: var(--blue-light);
    box-shadow: 0 10px 30px rgba(59,130,246,0.3);
}

.cert-card h3 {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.cert-date {
    font-size: 0.9rem;
    color: var(--blue-light);
    margin-bottom: 1rem;
}

.cert-card p:last-child {
    color: var(--gray);
}

/* ===== 挑戦中バッジと燃えるエフェクト ===== */
.award-item.in-progress,
.cert-card.in-progress {
    position: relative;
    border: 2px solid rgba(249,115,22,0.5);
    background: linear-gradient(135deg, rgba(26,26,26,0.9) 0%, rgba(249,115,22,0.1) 100%);
}

.award-item.in-progress:hover,
.cert-card.in-progress:hover {
    border-color: var(--orange);
    box-shadow: 0 10px 40px rgba(249,115,22,0.4);
}

.challenge-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, rgba(249,115,22,0.3) 0%, rgba(239,68,68,0.3) 100%);
    border: 2px solid var(--orange);
    border-radius: 2rem;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--orange);
    margin-top: 1rem;
    box-shadow: 0 0 20px rgba(249,115,22,0.3);
    animation: badgePulse 2s ease-in-out infinite;
}

.fire-effect {
    display: inline-block;
    font-size: 1.2rem;
    animation: fireFlicker 1.5s ease-in-out infinite, fireFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 0 8px rgba(249,115,22,0.8)) drop-shadow(0 0 15px rgba(239,68,68,0.6));
}

@keyframes fireFlicker {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    25% {
        opacity: 0.8;
        transform: scale(1.1);
    }
    50% {
        opacity: 1;
        transform: scale(0.95);
    }
    75% {
        opacity: 0.9;
        transform: scale(1.05);
    }
}

@keyframes fireFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-3px) rotate(-5deg);
    }
    50% {
        transform: translateY(-5px) rotate(5deg);
    }
    75% {
        transform: translateY(-2px) rotate(-3deg);
    }
}

@keyframes badgePulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(249,115,22,0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(249,115,22,0.6), 0 0 40px rgba(239,68,68,0.4);
    }
}

/* ===== プロジェクトセクション ===== */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--orange);
    box-shadow: 0 10px 30px rgba(249,115,22,0.3);
}

.project-card h3 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.project-tech {
    font-size: 0.9rem;
    color: var(--blue-light);
    margin-bottom: 1rem;
    font-weight: 600;
}

.project-card > p {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
    color: var(--white);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    font-weight: 600;
}

.project-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37,99,235,0.4);
}

.project-link.disabled {
    background: rgba(100,100,100,0.3);
    color: rgba(255,255,255,0.3);
    cursor: not-allowed;
    pointer-events: none;
}

.project-link.disabled:hover {
    transform: none;
    box-shadow: none;
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

/* ===== コンタクトセクション ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.contact-info {
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--gray);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method h4 {
    font-size: 1.2rem;
    color: var(--orange);
    margin-bottom: 0.3rem;
}

.contact-method p {
    color: var(--gray);
}

.contact-form {
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
}

.contact-form h3 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--white);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background: rgba(10,10,10,0.5);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 0.5rem;
    color: var(--white);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 10px rgba(37,99,235,0.3);
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 100%);
    color: var(--white);
    border: none;
    border-radius: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(249,115,22,0.4);
}

/* ===== リンクセクション ===== */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.link-card {
    background: rgba(26,26,26,0.8);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
}

.link-card:hover {
    transform: translateY(-5px);
    border-color: var(--blue-light);
    box-shadow: 0 10px 30px rgba(37,99,235,0.3);
}

.link-card h3 {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.link-card h3::before {
    content: '🔗';
    font-size: 1.2rem;
}

.link-url {
    font-size: 0.9rem;
    color: var(--blue-light);
    margin-bottom: 1rem;
    word-break: break-all;
}

.link-description {
    font-size: 1rem;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== 結果待ち中バッジ ===== */
.cert-card.pending {
    position: relative;
    border: 2px solid rgba(59,130,246,0.5);
    background: linear-gradient(135deg, rgba(26,26,26,0.9) 0%, rgba(59,130,246,0.1) 100%);
}

.cert-card.pending:hover {
    border-color: var(--blue-light);
    box-shadow: 0 10px 40px rgba(59,130,246,0.4);
}

.pending-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, rgba(59,130,246,0.3) 0%, rgba(147,51,234,0.3) 100%);
    border: 2px solid var(--blue-light);
    border-radius: 2rem;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--blue-light);
    margin-top: 1rem;
    box-shadow: 0 0 20px rgba(59,130,246,0.3);
    animation: pendingPulse 3s ease-in-out infinite;
}

.hourglass-effect {
    display: inline-block;
    font-size: 1.2rem;
    animation: hourglassRotate 2s ease-in-out infinite;
    filter: drop-shadow(0 0 8px rgba(59,130,246,0.8)) drop-shadow(0 0 15px rgba(147,51,234,0.6));
}

@keyframes hourglassRotate {
    0%, 100% {
        transform: rotate(0deg);
        opacity: 1;
    }
    25% {
        transform: rotate(180deg);
        opacity: 0.9;
    }
    50% {
        transform: rotate(180deg);
        opacity: 1;
    }
    75% {
        transform: rotate(360deg);
        opacity: 0.9;
    }
}

@keyframes pendingPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(59,130,246,0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(59,130,246,0.6), 0 0 40px rgba(147,51,234,0.4);
    }
}
/* ===== 大画面用コンテンツスタイル ===== */
@media (min-width: 1600px) {
    .content-title {
        font-size: 3.5rem;
    }
    
    .content-body {
        font-size: 1.3rem;
    }
    
    .blog-grid,
    .cert-grid,
    .project-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 2.5rem;
    }
    
    .profile-header h3 {
        font-size: 3rem;
    }
    
    .profile-subtitle {
        font-size: 1.4rem;
    }
    
    .profile-section h4 {
        font-size: 1.8rem;
    }
}

@media (min-width: 2560px) {
    .content-title {
        font-size: 4rem;
    }
    
    .content-body {
        font-size: 1.5rem;
    }
    
    .blog-grid,
    .cert-grid,
    .project-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
        gap: 3rem;
    }
    
    .profile-card,
    .blog-card,
    .award-item,
    .cert-card,
    .project-card,
    .contact-info,
    .contact-form {
        padding: 3rem;
    }
    
    .profile-header h3 {
        font-size: 3.5rem;
    }
    
    .profile-subtitle {
        font-size: 1.6rem;
    }
    
    .profile-section h4 {
        font-size: 2rem;
    }
    
    .blog-card h3,
    .cert-card h3,
    .project-card h3 {
        font-size: 1.8rem;
    }
    
    .award-year {
        font-size: 2.5rem;
        min-width: 120px;
    }
    
    .award-content h3 {
        font-size: 1.8rem;
    }
}

/* ===== レスポンシブ対応 ===== */
@media (min-width: 1025px) and (max-width: 1399px) {
    .center-intro-window {
        width: 500px;
        height: 500px;
    }
    
    .slide-title {
        font-size: 2.4rem;
    }
    
    .slide-text {
        font-size: 2vw;
        line-height: 1.65;
    }
    
    .nav-circle.size-medium {
        width: 160px;
        height: 160px;
    }
    
    .size-medium .circle-icon svg {
        width: 44px;
        height: 44px;
    }
    
    .size-medium .circle-label {
        font-size: 1rem;
    }
}

@media (max-width: 1024px) {
    .main-header {
        padding: 1.2rem 2rem;
    }

    .header-title {
        font-size: 1.5rem;
    }

    .light-orb.medium { width: 250px; height: 250px; }
    .light-orb.large { width: 400px; height: 400px; }
    .light-orb.xlarge { width: 550px; height: 550px; }

    .nav-circle.size-tiny { width: 90px; height: 90px; }
    .nav-circle.size-small { width: 110px; height: 110px; }
    .nav-circle.size-medium { width: 140px; height: 140px; }
    .nav-circle.size-large { width: 160px; height: 160px; }
    .nav-circle.size-xlarge { width: 180px; height: 180px; }

    .size-tiny .circle-icon svg { width: 24px; height: 24px; }
    .size-small .circle-icon svg { width: 30px; height: 30px; }
    .size-medium .circle-icon svg { width: 36px; height: 36px; }
    .size-large .circle-icon svg { width: 42px; height: 42px; }
    .size-xlarge .circle-icon svg { width: 46px; height: 46px; }

    .center-intro-window {
        width: 380px;
        height: 380px;
    }
    
    .slide-title {
        font-size: 1.75rem;
    }
    
    .slide-text {
        font-size: 2vw;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 1rem 1.5rem;
    }

    .header-title {
        font-size: 1.2rem;
    }

    .title-orange {
        margin: 0 0.3rem;
    }

    .home-section {
        min-height: 100vh;
        padding-top: 70px;
    }

    .light-orb.medium { width: 200px; height: 200px; filter: blur(60px); }
    .light-orb.large { width: 300px; height: 300px; filter: blur(60px); }
    .light-orb.xlarge { width: 400px; height: 400px; filter: blur(60px); }

    .nav-circle.size-tiny { width: 80px; height: 80px; }
    .nav-circle.size-small { width: 95px; height: 95px; }
    .nav-circle.size-medium { width: 120px; height: 120px; }
    .nav-circle.size-large { width: 135px; height: 135px; }
    .nav-circle.size-xlarge { width: 150px; height: 150px; }

    .size-tiny .circle-icon svg { width: 20px; height: 20px; }
    .size-small .circle-icon svg { width: 26px; height: 26px; }
    .size-medium .circle-icon svg { width: 32px; height: 32px; }
    .size-large .circle-icon svg { width: 36px; height: 36px; }
    .size-xlarge .circle-icon svg { width: 40px; height: 40px; }

    .size-tiny .circle-label { font-size: 0.6rem; }
    .size-small .circle-label { font-size: 0.7rem; }
    .size-medium .circle-label { font-size: 0.75rem; }
    .size-large .circle-label { font-size: 0.8rem; }
    .size-xlarge .circle-label { font-size: 0.85rem; }

    .center-intro-window {
        width: 320px;
        height: 320px;
    }
    
    .slide-content {
        padding: 1.5rem;
    }
    
    .slide-title {
        font-size: 1.5rem;
        margin-bottom: 0.75rem;
    }
    
    .slide-text {
        font-size: 2.5vw;
    }
    
    .slide-indicators {
        bottom: 15px;
        gap: 8px;
    }
    
    .indicator {
        width: 8px;
        height: 8px;
    }

    /* モバイル用の丸の位置調整 - 上側に配置 */
    .nav-circle:nth-child(1) { top: 3% !important; left: 50% !important; transform: translateX(-50%) !important; }
    .nav-circle:nth-child(2) { top: 11% !important; left: 82% !important; transform: none !important; }
    .nav-circle:nth-child(3) { top: 11% !important; left: 18% !important; transform: none !important; }
    .nav-circle:nth-child(4) { top: 90% !important; left: 50% !important; transform: translateX(-50%) !important; }
    .nav-circle:nth-child(5) { top: 80% !important; left: 18% !important; transform: none !important; }
    .nav-circle:nth-child(6) { top: 80% !important; left: 82% !important; transform: none !important; }

    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .header-title {
        font-size: 1rem;
    }

    .title-orange {
        margin: 0 0.2rem;
    }

    .home-section {
        padding-top: 60px;
    }

    .nav-circle.size-tiny { width: 70px; height: 70px; }
    .nav-circle.size-small { width: 85px; height: 85px; }
    .nav-circle.size-medium { width: 100px; height: 100px; }
    .nav-circle.size-large { width: 115px; height: 115px; }
    .nav-circle.size-xlarge { width: 130px; height: 130px; }

    .size-tiny .circle-icon svg { width: 18px; height: 18px; }
    .size-small .circle-icon svg { width: 22px; height: 22px; }
    .size-medium .circle-icon svg { width: 28px; height: 28px; }
    .size-large .circle-icon svg { width: 32px; height: 32px; }
    .size-xlarge .circle-icon svg { width: 36px; height: 36px; }

    .star-circle.tiny { width: 6px; height: 6px; }
    .star-circle.small { width: 10px; height: 10px; }
    .star-circle.medium { width: 18px; height: 18px; }

    .solid-circle.tiny { width: 8px; height: 8px; }
    .solid-circle.small { width: 14px; height: 14px; }
    .solid-circle.medium { width: 24px; height: 24px; }

    .center-intro-window {
        width: 280px;
        height: 280px;
    }
    
    .slide-content {
        padding: 1rem;
    }
    
    .slide-title {
        font-size: 1.25rem;
        margin-bottom: 0.5rem;
    }
    
    .slide-text {
        font-size: 3.5vw;
        line-height: 1.4;
    }
    
    /* 480px以下でもナビゲーション円が動くように */
    .nav-circle:nth-child(1) { top: 2% !important; left: 50% !important; transform: translateX(-50%) !important; }
    .nav-circle:nth-child(2) { top: 10% !important; left: 78% !important; transform: none !important; }
    .nav-circle:nth-child(3) { top: 10% !important; left: 22% !important; transform: none !important; }
    .nav-circle:nth-child(4) { top: 88% !important; left: 50% !important; transform: translateX(-50%) !important; }
    .nav-circle:nth-child(5) { top: 78% !important; left: 22% !important; transform: none !important; }
    .nav-circle:nth-child(6) { top: 78% !important; left: 78% !important; transform: none !important; }
}