@charset "UTF-8";
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');
@import url("grid.css");

:root { /* 色変更される場合は、#以降のカラーコードを変更してください IE非対応 */
    --base-color: #0b1f3a;
    --accent-color: #e6644c;
    --accent-color-soft: #fce7e2;
    --link-color: #0b1f3a;
    --linkhover-color: #e6644c;
    --back-color: #f4f5f9;
    --border-color: #d7dceb;
    --white-color: #fff;
    --shadow-color: rgba(7, 25, 53, 0.08);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
    color: var(--base-color);
    line-height: 1.75;
    margin: 0;
    background: radial-gradient(circle at top, #ffffff 0%, #eef2ff 55%, #e6f5ff 100%);
    min-height: 100vh;
}

img {
	max-width:100%;
	height: auto;/*高さ自動*/
    display: block;
}
a {
    display:block;
    color: var(--link-color);
    text-decoration-line: none;
    transition: color 0.2s ease, transform 0.2s ease;
}
a:hover { 
    color: var(--linkhover-color);
    transform: translateY(-1px);
}


/*ヘッダー
-------------------------------------*/
header {
    padding: 2rem 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.85);
    border-bottom: 1px solid rgba(11,31,58,0.08);
}
.header {
	display: flex;
    flex-direction: row;
    padding: 0;
    align-items: flex-start;
    gap: 1rem;
}
.header h1 {
    font-size: clamp(1.4rem, 2vw, 1.9rem);
    font-weight: 700;
    margin: 0;
    line-height: 1.4;
}
.header h1 a {
    color: var(--base-color);
}
.header-box {
	margin-left: auto;
	margin-top: 8px;
}
.contact-button {
	padding: 1rem;
	border: 2px solid var(--base-color);
}
nav {
    width: 100%;
    margin-top: 1rem;
}
nav ul {
	display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
	margin: 1.5rem 0 0 0;
    padding: 0.5rem;
    gap: 0.5rem;
    border-radius: 999px;
    background-color: rgba(255,255,255,0.92);
    box-shadow: 0 12px 30px var(--shadow-color);
}
nav li {
	flex: 0 1 auto;
}
nav li a {
    text-decoration: none;
    text-align: center;
    width: 100%;
    padding: 0.65rem 1.5rem;
    border-radius: 999px;
    font-weight: 500;
    letter-spacing: 0.02em;
}
nav a:hover {
    background-color: var(--accent-color);
    color: var(--white-color);   
}

@media screen and (min-width: 769px){
/* PC時はMENUボタンを非表示 */
#open,#close {
    display: none !important;
}

#navi {
    display: block !important;
}
}

@media screen and (max-width: 768px){
.header {
	flex-direction: column;
    margin-bottom: 10px;
}
.header #open,#close  {
    position: absolute;
    top: 20px;
    right: 12px;
}
nav ul {
	flex-direction: column;
}
.header li {
	padding-top: 0;
}
/* スマホ時はMENUボタンを表示 */
#open {
    display: block;
    background: url(../img/button.png);
    background-repeat: no-repeat;
    background-size: contain;
    width: 50px;
    height: 50px;
    border: none;
    position: absolute;
    top: 20px;
    right: 12px;
}
#close  {
    display: block;
    background: url(../img/button2.png);
    background-repeat: no-repeat;
    background-size: contain;
    width: 50px;
    height: 50px;
    border: none;
    position: absolute;
    top: 20px;
    right: 12px;
}
/* スマホ時はメニューを非表示 */
#navi {
    display: none;
}
}
    
/*メイン画像
-------------------------------------*/
.mainimg img {
    width: 100%;
    border-radius: 28px;
    box-shadow: 0 25px 60px rgba(11,31,58,0.25);
    object-fit: cover;
    max-height: 540px;
}
.mainimg {
    width: min(1100px, 92vw);
    margin: 2rem auto 0;
    position: relative;
}
.mainimg::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 28px;
    border: 1px solid rgba(255,255,255,0.6);
    pointer-events: none;
}

/*メインコンテンツ
-------------------------------------*/
main {
    width: min(1100px, 92vw);
    margin: 5rem auto 0;
    background-color: rgba(255,255,255,0.92);
    border-radius: 32px;
    padding: 3rem 4vw 4rem;
    box-shadow: 0 40px 60px rgba(11,31,58,0.12);
    position: relative;
    z-index: 1;
}
main::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 32px;
    background: linear-gradient(135deg, rgba(255,255,255,0.35), rgba(255,255,255,0));
    z-index: -1;
}
section {
	margin: 5rem 0;
	padding: 3.5rem 3rem;
    border-radius: 28px;
    border: 1px solid rgba(11,31,58,0.08);
    box-shadow: inset 0 0 25px rgba(11,31,58,0.05);
}
.gray-back {
	background: linear-gradient(135deg, #fff 0%, #fef7f4 40%, var(--back-color) 100%);
}

/*キャッチコピー
-------------------------------------*/
.catch {
    text-align: center;
    background: linear-gradient(135deg, #fefefe 0%, #f0f9ff 80%);
    padding: 3rem 2.5rem;
    border-radius: 32px;
    box-shadow: 0 18px 40px var(--shadow-color);
}
.catch h2 {
    padding-bottom: 1rem;
    margin-top: 0;
}
.under {
    border-bottom: 0.4rem solid var(--accent-color);
    padding:0 1rem 1rem 1rem;
}
.center {
	text-align: center;
	margin-bottom: 4rem;
}

section .container {
    max-width: 820px;
    margin: 0 auto;
}
section a {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-bottom: 0.5rem;
    padding: 0.35rem 0.2rem;
    color: var(--accent-color);
    border-bottom: 1px dashed rgba(230,100,76,0.4);
}
section a::after {
    content: "↗";
    font-size: 0.75em;
}

/*申し込みの流れ
-------------------------------------*/
.flow.row {
	margin-bottom: 3rem;
}

/*フッター
-------------------------------------*/
footer {
    background: linear-gradient(120deg, #0b1f3a 0%, #12376d 100%);
    padding: 5rem 0 3rem;
    margin-top: 4rem;
    border-top-left-radius: 32px;
    border-top-right-radius: 32px;
    box-shadow: 0 -20px 50px rgba(11,31,58,0.2);
}
footer h4 {
    border-bottom: 3px solid rgba(255,255,255,0.2);
    color: var(--white-color);
}

/*お問い合わせ
-------------------------------------*/
.contact-box {
	border: 1px solid var(--border-color);
	text-align: center;
	padding: 2rem 0;
}
.table {
	margin: 4rem 0;
}
.table th {
	width: 250px;
}

/*コピーライト
-------------------------------------*/
.copyright {
    text-align: center;
    padding: 1rem 0;
    background-color: transparent;
}
.copyright a {
    color: var(--white-color);
    text-decoration: none;
	display: inline;
}

/*ページトップへ戻るボタン
-------------------------------------*/
#pagetop {
    position: fixed;
    bottom: 15px;
    right: 15px;
}
#pagetop a {
    display: block;
    background-color: var(--base-color);
    color: var(--white-color);
    width: 50px;
    padding: 10px 5px;
    text-align: center;
}
#pagetop a:hover {
    background-color: var(--link-color);
}

/* 幅768px以下の表示
-------------------------------------*/
@media screen and (max-width: 768px){
	
/*ヘッダー
-------------------------------------*/
.header-box {
	display: none;
}
.header {
    align-items: flex-start;
}
nav ul {
    flex-direction: column;
    border-radius: 20px;
}
.mainimg {
    width: 94vw;
}
.mainimg img {
    max-height: 320px;
}
main {
    width: 94vw;
}
section {
    padding: 2.5rem 1.5rem;
}
.catch {
    padding: 2rem 1.4rem;
}
/*お問い合わせ
-------------------------------------*/
.table th {
	width: 100%;
	display: block;
}	
	.table td {
		display: block;
	}
}

.chapter {
    text-align: center;
    padding: 20px;
    background-color: var(--back-color);
    border: 1px solid #000;
}

/* 3.4 セクション用 */
#section-3-4 {
    padding-top: 4rem;
}
.process-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.process-card {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
}
.process-card__header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}
.process-badge {
    display: inline-flex;
    align-self: flex-start;
    padding: 0.2rem 0.8rem;
    border-radius: 999px;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    background: #e9f2ff;
    color: #1b64d8;
}
.process-card h3 {
    margin: 0;
    font-size: 1.2rem;
}
.process-card h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}
.process-list {
    list-style: none;
    margin: 0;
    padding-left: 1.4rem;
    line-height: 1.8;
    position: relative;
}
.process-list li {
    position: relative;
    padding-left: 0.5rem;
}
.process-list li::before {
    content: "●";
    position: absolute;
    left: -1.4rem;
    color: var(--base-color);
}
.process-note {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.4rem 0.8rem;
    background-color: var(--back-color);
    border-left: 3px solid var(--base-color);
    font-size: 0.95rem;
}

@media screen and (max-width: 768px){
    .process-card {
        padding: 1.5rem;
    }
}

.milestone-section {
    background: linear-gradient(180deg, var(--back-color) 0%, #fff 45%, var(--back-color) 100%);
    padding-top: 4rem;
    padding-bottom: 4rem;
}
.milestone-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}
.milestone-card {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
}
.milestone-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.6);
    pointer-events: none;
}
.media-box {
    margin-top: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    background-color: #fdfdfd;
    box-shadow: 0 10px 18px rgba(0,0,0,0.06);
}
.media-box img {
    display: block;
    width: 100%;
}
.media-box figcaption {
    padding: 0.8rem 1rem;
    font-size: 0.9rem;
    background-color: var(--back-color);
}
.milestone-checkpoints {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    border-left: 4px solid var(--base-color);
    background-color: rgba(0,0,0,0.03);
}
.milestone-label {
    font-weight: bold;
    margin-bottom: 0.5rem;
}
.evaluation-section {
    padding-bottom: 5rem;
}
.highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}
.highlight-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    background-color: var(--white-color);
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}
.numbered-list {
    counter-reset: item;
    list-style: none;
    padding-left: 0;
    margin: 0;
}
.numbered-list li {
    counter-increment: item;
    margin-bottom: 0.5rem;
    padding-left: 2.2rem;
    position: relative;
    line-height: 1.7;
}
.numbered-list li::before {
    content: counter(item, decimal-leading-zero);
    position: absolute;
    left: 0;
    top: 0;
    font-weight: bold;
    color: var(--base-color);
}
.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.model-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    background-color: #fafafa;
}
.metric-panel {
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    background-color: var(--back-color);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.6);
}

@media screen and (max-width: 768px) {
    .milestone-card,
    .highlight-card,
    .model-card,
    .metric-panel {
        padding: 1.25rem;
    }
    .media-box figcaption {
        font-size: 0.85rem;
    }
}

/* Chapter 4 layout */
.chapter-lead {
    background: radial-gradient(circle at top, #ffffff 0%, #f7f9ff 60%, #eef2ff 100%);
    padding: 4rem 0 3rem;
}
.key-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}
.key-metric {
    padding: 1.2rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--white-color);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.08);
    text-align: center;
}
.key-metric__label {
    font-size: 0.9rem;
    color: #666;
}
.key-metric__value {
    font-size: 1.2rem;
    font-weight: bold;
    margin-top: 0.4rem;
}
.content-section {
    padding: 4rem 0;
}
.content-section.alt {
    background-color: var(--back-color);
}
.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    align-items: start;
}
.rule-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    background: linear-gradient(180deg, #fff 0%, #f9fbff 100%);
    box-shadow: 0 10px 20px rgba(0,0,0,0.07);
}
.rule-card h3 {
    margin-top: 0;
}
.rule-card ul {
    margin-left: 1rem;
    line-height: 1.8;
}
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}
.media-grid figure {
    margin: 0;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 25px rgba(0,0,0,0.08);
}
.media-grid img {
    display: block;
    width: 100%;
    height: auto;
}
.insight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.2rem;
    margin-top: 2rem;
}
.insight-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    background-color: var(--white-color);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}
.insight-card h4 {
    margin-top: 0;
}
.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}
.challenge-card {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.8rem;
    background-color: #fefefe;
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}
.result-highlight {
    border-radius: 16px;
    padding: 2rem;
    background: #fff;
    box-shadow: 0 12px 28px rgba(0,0,0,0.08);
}
.result-table-wrapper {
    margin: 2rem 0;
}
.result-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background-color: var(--white-color);
    box-shadow: 0 8px 18px rgba(0,0,0,0.05);
}
.result-table th,
.result-table td {
    border: 1px solid var(--border-color);
    padding: 0.8rem 1rem;
    text-align: left;
}
.result-table thead {
    background-color: #f0f4ff;
}
.result-table.compact th,
.result-table.compact td {
    font-size: 0.9rem;
    padding: 0.6rem 0.8rem;
}
.model-table-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.result-note {
    border-left: 4px solid var(--base-color);
    padding: 0.8rem 1rem;
    background-color: #f8f8f8;
    margin-top: 0.8rem;
}
@media screen and (max-width: 768px) {
    .key-metrics,
    .two-column,
    .media-grid,
    .insight-grid,
    .challenge-grid,
    .model-table-grid {
        grid-template-columns: 1fr;
    }
}

/* Chapter 5 layout */
.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.achievement-card {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}
.achievement-card h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--base-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}
.capability-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.capability-card {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 6px 15px rgba(0,0,0,0.06);
}
.capability-card.highlight {
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0ff 100%);
    border: 2px solid #4a90e2;
}
.capability-card h4 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--base-color);
}
.contribution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.contribution-card {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}
.contribution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.12);
}
.contribution-card h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--base-color);
    font-size: 1.1rem;
    border-left: 4px solid var(--base-color);
    padding-left: 1rem;
}
.contribution-card p {
    margin: 0;
    color: #666;
    line-height: 1.7;
}
.future-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.future-card {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    text-align: center;
}
.future-card h4 {
    margin-top: 0;
    margin-bottom: 0.8rem;
    color: var(--base-color);
    font-size: 1rem;
}
.future-card p {
    margin: 0;
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

@media screen and (max-width: 768px) {
    .achievement-grid,
    .capability-grid,
    .contribution-grid,
    .future-grid {
        grid-template-columns: 1fr;
    }
}