/* ============================================================
   AIAW Theme — main.css
   ブランドガイドライン準拠（AIAW_Brand_Guideline.docx 参照）
   ============================================================ */

:root {
	--aiaw-black: #0A0A0A;
	--aiaw-white: #FFFFFF;
	--aiaw-carbon: #1C1C1C;
	--aiaw-titanium: #6E6E6E;
	--aiaw-aluminum: #C7C7C7;
	--aiaw-signal: #2F5EFF;

	--aiaw-font-head: "Helvetica Neue", "Hiragino Kaku Gothic ProN", Arial, sans-serif;
	--aiaw-font-body: "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
	--aiaw-font-mono: "JetBrains Mono", "Roboto Mono", monospace;

	--aiaw-container-width: 1120px;
	--aiaw-container-narrow: 760px;
	--aiaw-space-unit: 8px;
}

/* ---------- リセット ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
	margin: 0;
	background: var(--aiaw-black);
	color: var(--aiaw-white);
	font-family: var(--aiaw-font-body);
	font-size: 16px;
	line-height: 1.8;
	-webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--aiaw-font-head); }
p { margin: 0 0 1em; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

/* ---------- レイアウト共通 ---------- */
.aiaw-container {
	max-width: var(--aiaw-container-width);
	margin: 0 auto;
	padding: 0 24px;
}
.aiaw-container--narrow {
	max-width: var(--aiaw-container-narrow);
	margin: 0 auto;
	padding: 0 24px;
}
.aiaw-section { padding: 96px 0; background: var(--aiaw-black); }
.aiaw-section--dark { background: var(--aiaw-carbon); }
.aiaw-section__title {
	font-size: 28px;
	font-weight: 700;
	letter-spacing: 0.04em;
	margin-bottom: 40px;
	text-transform: uppercase;
}
.aiaw-section__title span {
	display: block;
	font-size: 14px;
	font-weight: 400;
	letter-spacing: 0.05em;
	color: var(--aiaw-titanium);
	text-transform: none;
	margin-top: 8px;
}

/* ---------- ヘッダー ---------- */
.aiaw-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(10, 10, 10, 0.92);
	backdrop-filter: blur(6px);
	border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.aiaw-header__inner {
	max-width: var(--aiaw-container-width);
	margin: 0 auto;
	padding: 20px 24px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.aiaw-header__logo {
	font-family: var(--aiaw-font-head);
	font-weight: 700;
	font-size: 22px;
	letter-spacing: 0.06em;
	color: var(--aiaw-white);
}
.aiaw-nav__list {
	display: flex;
	gap: 32px;
}
.aiaw-nav__list a {
	font-size: 14px;
	font-weight: 500;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--aiaw-white);
	transition: color 0.2s ease;
}
.aiaw-nav__list a:hover { color: var(--aiaw-signal); }
.aiaw-header__utility { display: flex; align-items: center; gap: 16px; }
.aiaw-search-toggle,
.aiaw-nav-toggle {
	background: none;
	border: none;
	color: var(--aiaw-white);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
}
.aiaw-icon-search::before { content: "⌕"; font-size: 18px; }
.aiaw-nav-toggle { display: none; flex-direction: column; gap: 4px; }
.aiaw-nav-toggle span { width: 20px; height: 2px; background: var(--aiaw-white); display: block; }

.aiaw-search-panel { border-top: 1px solid rgba(255,255,255,0.08); background: var(--aiaw-carbon); }
.aiaw-search-panel[hidden] { display: none; }
.aiaw-search-form { max-width: var(--aiaw-container-width); margin: 0 auto; padding: 16px 24px; display: flex; gap: 12px; }
.aiaw-search-form input {
	flex: 1;
	background: transparent;
	border: 1px solid var(--aiaw-titanium);
	color: var(--aiaw-white);
	padding: 10px 14px;
}
.aiaw-search-form button {
	background: var(--aiaw-signal);
	color: var(--aiaw-white);
	border: none;
	padding: 10px 20px;
}

/* ---------- ファーストビュー ---------- */
.aiaw-hero {
	min-height: 86vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: 40px 24px;
	background: var(--aiaw-black);
	position: relative;
}
.aiaw-hero__inner { max-width: 720px; }
.aiaw-hero__headline {
	font-size: clamp(32px, 5vw, 56px);
	font-weight: 700;
	letter-spacing: 0.02em;
	margin-bottom: 24px;
}
.aiaw-hero__sub {
	font-size: 16px;
	color: var(--aiaw-aluminum);
	line-height: 1.9;
}
.aiaw-hero__scroll {
	position: absolute;
	bottom: 32px;
	left: 50%;
	transform: translateX(-50%);
	color: var(--aiaw-titanium);
	font-size: 20px;
	animation: aiaw-bounce 2s infinite;
}
@keyframes aiaw-bounce {
	0%, 100% { transform: translate(-50%, 0); }
	50% { transform: translate(-50%, 8px); }
}

/* ---------- ブランドステートメント ---------- */
.aiaw-statement { text-align: center; }
.aiaw-statement__text {
	max-width: 680px;
	margin: 0 auto 24px;
	font-size: 17px;
	line-height: 2;
	color: var(--aiaw-aluminum);
}

/* ---------- リンク・ボタン ---------- */
.aiaw-link-arrow {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-size: 14px;
	font-weight: 500;
	letter-spacing: 0.03em;
	color: var(--aiaw-white);
	border-bottom: 1px solid var(--aiaw-signal);
	padding-bottom: 2px;
}
.aiaw-link-arrow::after { content: "→"; transition: transform 0.2s ease; }
.aiaw-link-arrow:hover::after { transform: translateX(4px); }

.aiaw-btn {
	display: inline-block;
	padding: 14px 32px;
	font-size: 14px;
	font-weight: 600;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	border: 1px solid var(--aiaw-white);
	background: transparent;
	color: var(--aiaw-white);
	transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.aiaw-btn--primary {
	background: var(--aiaw-signal);
	border-color: var(--aiaw-signal);
	color: var(--aiaw-white);
}
.aiaw-btn--primary:hover { opacity: 0.88; }
.aiaw-btn--outline:hover { background: var(--aiaw-white); color: var(--aiaw-black); }

/* ---------- カードグリッド ---------- */
.aiaw-card-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
	margin-bottom: 40px;
}
.aiaw-card {
	display: flex;
	flex-direction: column;
	background: rgba(255, 255, 255, 0.03);
	border: 1px solid rgba(255, 255, 255, 0.08);
	transition: border-color 0.2s ease, transform 0.2s ease;
}
.aiaw-card:hover { border-color: var(--aiaw-signal); transform: translateY(-2px); }
.aiaw-card--inline { flex-direction: row; }
.aiaw-card__thumb { aspect-ratio: 16 / 10; overflow: hidden; background: var(--aiaw-carbon); }
.aiaw-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.aiaw-card__thumb--empty {
	background: linear-gradient(135deg, var(--aiaw-carbon), var(--aiaw-black));
}
.aiaw-card__body { padding: 20px; }
.aiaw-card__title { font-size: 17px; font-weight: 600; margin: 12px 0 8px; line-height: 1.5; }
.aiaw-card__excerpt { font-size: 13px; color: var(--aiaw-titanium); line-height: 1.7; margin: 0; }

.aiaw-tag {
	display: inline-block;
	font-size: 11px;
	font-weight: 600;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--aiaw-signal);
	border: 1px solid var(--aiaw-signal);
	padding: 3px 10px;
}
.aiaw-tag--status { margin-bottom: 16px; }
.aiaw-tag--genre {
	color: var(--aiaw-aluminum);
	border-color: var(--aiaw-titanium);
	margin-left: 6px;
}
.aiaw-tag--stage {
	color: var(--aiaw-titanium);
	border-color: rgba(255, 255, 255, 0.15);
	margin-right: 8px;
	text-decoration: none;
}

.aiaw-empty { color: var(--aiaw-titanium); font-size: 14px; }

/* ---------- Video ---------- */
.aiaw-video__embed {
	aspect-ratio: 16 / 9;
	background: var(--aiaw-carbon);
	margin-bottom: 24px;
	display: flex;
	align-items: center;
	justify-content: center;
}
.aiaw-video__embed iframe { width: 100%; height: 100%; border: none; }
.aiaw-video__placeholder { color: var(--aiaw-titanium); font-size: 14px; }

/* ---------- 数字で見るAIAW ---------- */
.aiaw-stats { text-align: center; }
.aiaw-stats__lead { color: var(--aiaw-titanium); margin-bottom: 48px; }
.aiaw-stats__grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 32px;
}
.aiaw-stat__number {
	display: block;
	font-family: var(--aiaw-font-mono);
	font-size: 40px;
	font-weight: 700;
	color: var(--aiaw-signal);
	margin-bottom: 8px;
}
.aiaw-stat__label { font-size: 13px; color: var(--aiaw-titanium); letter-spacing: 0.03em; }

/* ---------- SNS ---------- */
.aiaw-sns { text-align: center; }
.aiaw-sns__note { color: var(--aiaw-titanium); margin-bottom: 20px; }

/* ---------- 記事・固定ページ ---------- */
.aiaw-article, .aiaw-page, .aiaw-project, .aiaw-gear { padding: 80px 0 100px; }
.aiaw-article__cats { display: flex; gap: 8px; margin-bottom: 16px; }
.aiaw-article__title, .aiaw-page__title, .aiaw-project__title, .aiaw-gear__title {
	font-size: clamp(26px, 4vw, 38px);
	font-weight: 700;
	line-height: 1.4;
	margin-bottom: 16px;
}
.aiaw-article__meta { color: var(--aiaw-titanium); font-size: 13px; margin-bottom: 32px; }
.aiaw-article__thumb, .aiaw-page__thumb, .aiaw-project__thumb, .aiaw-gear__thumb { margin-bottom: 40px; }
.aiaw-article__body, .aiaw-page__body, .aiaw-project__body, .aiaw-gear__body {
	font-size: 16px;
	line-height: 2;
	color: var(--aiaw-aluminum);
}
.aiaw-article__body h2, .aiaw-page__body h2, .aiaw-project__body h2, .aiaw-gear__body h2 {
	font-size: 22px;
	color: var(--aiaw-white);
	margin: 48px 0 16px;
}
.aiaw-article__body img, .aiaw-page__body img, .aiaw-project__body img, .aiaw-gear__body img { margin: 32px 0; }

.aiaw-related-project {
	margin-top: 56px;
	padding-top: 40px;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.aiaw-related-project__label { font-size: 12px; color: var(--aiaw-titanium); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.04em; }

/* ---------- Project 詳細 ---------- */
.aiaw-project__specs {
	display: flex;
	gap: 40px;
	padding: 24px 0;
	margin-bottom: 40px;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.aiaw-project__spec-label { display: block; font-size: 11px; color: var(--aiaw-titanium); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 6px; }
.aiaw-project__spec-value { font-family: var(--aiaw-font-mono); font-size: 15px; }

.aiaw-project__log { margin-top: 64px; }
.aiaw-timeline { border-left: 1px solid rgba(255, 255, 255, 0.15); padding-left: 32px; }
.aiaw-timeline__item { position: relative; padding-bottom: 40px; }
.aiaw-timeline__item::before {
	content: "";
	position: absolute;
	left: -37px;
	top: 4px;
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: var(--aiaw-signal);
}
.aiaw-timeline__date { display: block; font-family: var(--aiaw-font-mono); font-size: 12px; color: var(--aiaw-titanium); margin-bottom: 6px; }
.aiaw-timeline__title { display: block; font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.aiaw-timeline__title:hover { color: var(--aiaw-signal); }
.aiaw-timeline__excerpt { color: var(--aiaw-titanium); font-size: 14px; margin: 0; }

/* ---------- Gear ---------- */
.aiaw-spec-list li {
	padding: 12px 0;
	border-bottom: 1px solid rgba(255, 255, 255, 0.08);
	font-family: var(--aiaw-font-mono);
	font-size: 14px;
	color: var(--aiaw-aluminum);
}
.aiaw-gear__cta { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }

/* ---------- アーカイブ ---------- */
.aiaw-archive { padding: 80px 0 100px; }
.aiaw-archive__header { margin-bottom: 56px; }
.aiaw-archive__title { font-size: 36px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 16px; }
.aiaw-archive__lead { color: var(--aiaw-titanium); max-width: 560px; }
.aiaw-archive__filters { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.aiaw-archive__filters--genre { margin-top: 12px; }
.aiaw-filter { font-size: 13px; padding: 6px 16px; border: 1px solid var(--aiaw-titanium); color: var(--aiaw-titanium); }
.aiaw-filter--active { border-color: var(--aiaw-signal); color: var(--aiaw-signal); }
.aiaw-filter--tag { font-size: 12px; padding: 4px 12px; opacity: 0.85; }

.pagination, .aiaw-archive .nav-links,
.aiaw-pagination { display: flex; gap: 16px; justify-content: center; margin-top: 40px; font-size: 13px; }
.aiaw-pagination a, .aiaw-pagination span { color: var(--aiaw-titanium); }
.aiaw-pagination .current { color: var(--aiaw-signal); }

/* ---------- フォーム ---------- */
.aiaw-form { max-width: 560px; margin-top: 40px; }
.aiaw-form__row { margin-bottom: 24px; }
.aiaw-form__row label { display: block; font-size: 13px; margin-bottom: 8px; color: var(--aiaw-aluminum); }
.aiaw-form__required { color: var(--aiaw-signal); font-size: 11px; }
.aiaw-form__row input,
.aiaw-form__row textarea {
	width: 100%;
	background: transparent;
	border: 1px solid var(--aiaw-titanium);
	color: var(--aiaw-white);
	padding: 12px 14px;
}
.aiaw-form-message { padding: 16px; margin-bottom: 24px; font-size: 14px; }
.aiaw-form-message--success { border: 1px solid var(--aiaw-signal); color: var(--aiaw-signal); }
.aiaw-form-message--error { border: 1px solid #E85555; color: #E85555; }
.aiaw-form-note { margin-top: 24px; font-size: 12px; color: var(--aiaw-titanium); }

/* ---------- 404 ---------- */
.aiaw-404 { min-height: 60vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.aiaw-404__code { font-size: 96px; font-family: var(--aiaw-font-mono); color: var(--aiaw-signal); margin-bottom: 16px; }
.aiaw-404__text { color: var(--aiaw-titanium); margin-bottom: 32px; }

/* ---------- フッター ---------- */
.aiaw-footer { background: var(--aiaw-carbon); padding: 64px 0 32px; border-top: 1px solid rgba(255,255,255,0.08); }
.aiaw-footer__inner { max-width: var(--aiaw-container-width); margin: 0 auto; padding: 0 24px; text-align: center; }
.aiaw-footer__logo { font-family: var(--aiaw-font-head); font-size: 22px; font-weight: 700; letter-spacing: 0.06em; margin-bottom: 4px; }
.aiaw-footer__tagline { font-size: 11px; letter-spacing: 0.2em; color: var(--aiaw-titanium); margin-bottom: 32px; }
.aiaw-footer__list { display: flex; justify-content: center; gap: 24px; margin-bottom: 24px; flex-wrap: wrap; }
.aiaw-footer__list a { font-size: 13px; color: var(--aiaw-aluminum); }
.aiaw-footer__list a:hover { color: var(--aiaw-signal); }
.aiaw-footer__sns { display: flex; justify-content: center; gap: 20px; margin-bottom: 32px; }
.aiaw-footer__sns a { font-size: 12px; color: var(--aiaw-titanium); text-transform: uppercase; letter-spacing: 0.05em; }
.aiaw-footer__copyright { font-size: 11px; color: var(--aiaw-titanium); }

/* ---------- レスポンシブ ---------- */
@media (max-width: 900px) {
	.aiaw-card-grid { grid-template-columns: repeat(2, 1fr); }
	.aiaw-stats__grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}

@media (max-width: 680px) {
	.aiaw-nav { display: none; }
	.aiaw-nav-toggle { display: inline-flex; }
	.aiaw-nav.is-open {
		display: block;
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--aiaw-black);
		border-bottom: 1px solid rgba(255,255,255,0.08);
	}
	.aiaw-nav.is-open .aiaw-nav__list { flex-direction: column; padding: 24px; gap: 20px; }
	.aiaw-card-grid { grid-template-columns: 1fr; }
	.aiaw-stats__grid { grid-template-columns: 1fr; gap: 32px; }
	.aiaw-section { padding: 64px 0; }
	.aiaw-project__specs { flex-direction: column; gap: 16px; }
	.aiaw-card--inline { flex-direction: column; }
}