/*
Theme Name: Takaoka
Theme URI: https://shutoken-takaoka.net/
Author: TODO
Description: 首都圏高岡高校同窓会のためのテーマ。会のチラシに合わせ、濃紺と金、明朝体を基調とした落ち着いた意匠。
Version: 1.0.2
Requires at least: 6.5
Requires PHP: 8.1
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: takaoka
Tags: one-column, custom-logo, custom-menu, translation-ready
*/

/* ==========================================================================
   1. デザイントークン
   ========================================================================== */

:root {
	--tk-navy-900: #081a33;
	--tk-navy-800: #0d2340;
	--tk-navy-700: #16375e;
	--tk-navy-600: #23507f;

	--tk-gold:       #b8913f;
	--tk-gold-light: #d4b46a;
	--tk-gold-pale:  #e7d6a8;

	--tk-ivory: #f5f1e8;
	--tk-paper: #ffffff;
	--tk-line:  #ded6c4;

	--tk-ink:   #22282f;
	--tk-muted: #5d6772;

	--tk-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
	--tk-sans:  "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;

	--tk-measure: 46rem;
	--tk-wide:    64rem;
}

/* ==========================================================================
   2. 基本
   ========================================================================== */

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

html { -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	background: var(--tk-ivory);
	color: var(--tk-ink);
	font-family: var(--tk-sans);
	font-size: 16px;
	line-height: 1.95;
	letter-spacing: .02em;
	font-feature-settings: "palt";
}

img { max-width: 100%; height: auto; }

a {
	color: var(--tk-navy-600);
	text-underline-offset: .18em;
	text-decoration-thickness: 1px;
}

a:hover,
a:focus { color: var(--tk-gold); }

:focus-visible {
	outline: 2px solid var(--tk-gold);
	outline-offset: 2px;
}

.tk-skip-link {
	position: absolute;
	left: -9999px;
}

.tk-skip-link:focus {
	left: 1rem;
	top: 1rem;
	z-index: 100;
	background: var(--tk-paper);
	padding: .6em 1.2em;
	border-radius: 3px;
}

/* ==========================================================================
   3. 見出し・本文
   ========================================================================== */

h1, h2, h3, h4 {
	font-family: var(--tk-serif);
	font-weight: 600;
	line-height: 1.5;
	letter-spacing: .06em;
	color: var(--tk-navy-800);
	margin: 2.6em 0 .9em;
}

h1 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.3rem); }
h2 { font-size: clamp(1.3rem, 1.1rem + .9vw, 1.65rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1.5em; }

/* 見出しに金の罫線と◆ ── チラシの区切り装飾に合わせる */
.tk-rule {
	display: flex;
	align-items: center;
	gap: 1em;
	justify-content: center;
	text-align: center;
	margin-block: 2.8em 1.4em;
}

.tk-rule::before,
.tk-rule::after {
	content: "";
	flex: 1;
	height: 1px;
	background: linear-gradient(90deg, transparent, var(--tk-gold) 45%, var(--tk-gold));
	max-width: 6rem;
}

.tk-rule::after { background: linear-gradient(270deg, transparent, var(--tk-gold) 45%, var(--tk-gold)); }

.tk-rule > span { display: inline-block; }

.tk-rule > span::before,
.tk-rule > span::after {
	content: "◆";
	color: var(--tk-gold);
	font-size: .55em;
	vertical-align: .35em;
	margin: 0 .9em;
}

/* 金の帯ラベル ── チラシの「実行委員」バッジに相当 */
.tk-badge {
	display: inline-block;
	background: var(--tk-gold);
	color: #fff;
	font-family: var(--tk-serif);
	font-size: .85rem;
	letter-spacing: .14em;
	padding: .35em 1.5em;
	border-radius: 2px;
}

/* ==========================================================================
   4. レイアウト
   ========================================================================== */

.tk-shell {
	width: min(100% - 2.5rem, var(--tk-wide));
	margin-inline: auto;
}

.tk-narrow { max-width: var(--tk-measure); margin-inline: auto; }

.tk-main { padding-block: 0 5rem; }

.tk-card {
	background: var(--tk-paper);
	border: 1px solid var(--tk-line);
	border-radius: 3px;
	padding: clamp(1.6rem, 1rem + 2.5vw, 3.2rem);
	margin-block: 2.5rem;
	box-shadow: 0 1px 3px rgba(8, 26, 51, .05);
}

/* ==========================================================================
   5. ヘッダー
   ========================================================================== */

.tk-header {
	background: var(--tk-navy-800);
	color: #fff;
	border-bottom: 3px solid var(--tk-gold);
	position: relative;
}

/* 上辺の細い金のライン */
.tk-header::before {
	content: "";
	display: block;
	height: 3px;
	background: linear-gradient(90deg, var(--tk-gold), var(--tk-gold-pale), var(--tk-gold));
}

.tk-header__inner {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 1rem 2rem;
	padding-block: 1.5rem;
}

.tk-header__title {
	margin: 0;
	font-family: var(--tk-serif);
	font-size: clamp(1.15rem, .95rem + 1vw, 1.6rem);
	font-weight: 600;
	letter-spacing: .16em;
	color: #fff;
	line-height: 1.4;
}

.tk-header__title a { color: inherit; text-decoration: none; }
.tk-header__title a:hover { color: var(--tk-gold-pale); }

.tk-header__tagline {
	margin: .3em 0 0;
	font-size: .8rem;
	letter-spacing: .12em;
	color: var(--tk-gold-pale);
}

.tk-nav ul {
	display: flex;
	flex-wrap: wrap;
	gap: 1.6rem;
	list-style: none;
	margin: 0;
	padding: 0;
	font-size: .9rem;
	letter-spacing: .1em;
}

.tk-nav a {
	color: #e6ecf3;
	text-decoration: none;
	padding-bottom: .3em;
	border-bottom: 1px solid transparent;
}

.tk-nav a:hover,
.tk-nav .current-menu-item > a {
	color: #fff;
	border-bottom-color: var(--tk-gold);
}

.tk-nav li { list-style: none; }

/* メール登録は細い金の外枠線のボタンにする */
.tk-nav a[href$="/mail/"] {
	display: inline-block;
	padding: .55em 1.6em;
	border: 1px solid var(--tk-gold);
	border-radius: 2px;
	color: var(--tk-gold-pale);
	font-family: var(--tk-serif);
	letter-spacing: .16em;
	line-height: 1.4;
	transition: background .15s ease, color .15s ease;
}

.tk-nav a[href$="/mail/"]:hover,
.tk-nav a[href$="/mail/"]:focus-visible {
	background: var(--tk-gold);
	border-color: var(--tk-gold);
	color: var(--tk-navy-900);
}

.tk-nav a[href$="/mail/"][aria-current="page"] {
	background: rgba(184, 145, 63, .16);
	color: #fff;
}

/* ==========================================================================
   6. ヒーロー（フロントページ）
   ========================================================================== */

.tk-hero {
	background:
		radial-gradient(120% 90% at 15% 0%, var(--tk-navy-700) 0%, transparent 60%),
		linear-gradient(180deg, var(--tk-navy-800) 0%, var(--tk-navy-900) 100%);
	color: #fff;
	text-align: center;
	padding-block: clamp(2.25rem, 1.5rem + 3.5vw, 4rem);
	position: relative;
	overflow: hidden;
}

/* 隅の金のドット模様 ── チラシ左上の意匠 */
.tk-hero::before,
.tk-hero::after {
	content: "";
	position: absolute;
	width: 11rem;
	height: 11rem;
	background-image: radial-gradient(var(--tk-gold) 1.1px, transparent 1.1px);
	background-size: 13px 13px;
	opacity: .28;
	pointer-events: none;
}

.tk-hero::before { top: -2.5rem; left: -2.5rem; }
.tk-hero::after  { bottom: -2.5rem; right: -2.5rem; }

.tk-hero__eyebrow {
	font-family: var(--tk-serif);
	font-size: .95rem;
	letter-spacing: .3em;
	color: var(--tk-gold-light);
	margin: 0 0 .5em;
}

.tk-hero__title {
	font-family: var(--tk-serif);
	/* スマホ幅 (360px〜) でも「会」だけが改行されないよう下限を抑える */
	font-size: clamp(1.5rem, .9rem + 3.4vw, 3.2rem);
	font-weight: 600;
	letter-spacing: .18em;
	line-height: 1.45;
	color: #fff;
	margin: 0;
	text-indent: .18em;
}

.tk-hero__lead {
	font-family: var(--tk-serif);
	font-size: clamp(1rem, .92rem + .5vw, 1.3rem);
	letter-spacing: .1em;
	color: var(--tk-gold-pale);
	margin: .9em 0 0;
}

.tk-hero__divider {
	width: 5rem;
	height: 1px;
	background: var(--tk-gold);
	border: 0;
	margin: 1.4rem auto 0;
}

/* ==========================================================================
   7. 記事本文・固定ページ
   ========================================================================== */

.tk-page-header {
	background: var(--tk-navy-800);
	color: #fff;
	text-align: center;
	padding-block: clamp(2.2rem, 1.5rem + 3vw, 3.6rem);
	border-bottom: 1px solid var(--tk-gold);
}

.tk-page-header h1 {
	color: #fff;
	margin: 0;
	letter-spacing: .18em;
	text-indent: .18em;
}

.tk-entry > *:first-child { margin-top: 0; }
.tk-entry > *:last-child  { margin-bottom: 0; }

.tk-entry h2 {
	border-bottom: 1px solid var(--tk-line);
	padding-bottom: .5em;
}

.tk-entry h2::before {
	content: "◆";
	color: var(--tk-gold);
	font-size: .6em;
	vertical-align: .3em;
	margin-right: .7em;
}

.tk-entry ul,
.tk-entry ol { padding-left: 1.4em; margin: 0 0 1.6em; }

.tk-entry li { margin-bottom: .5em; }

.tk-entry hr {
	border: 0;
	border-top: 1px solid var(--tk-line);
	margin: 3rem 0;
}

.tk-entry blockquote {
	margin: 2em 0;
	padding: .2em 0 .2em 1.4em;
	border-left: 3px solid var(--tk-gold);
	color: var(--tk-muted);
}

.tk-meta {
	font-size: .82rem;
	letter-spacing: .1em;
	color: var(--tk-muted);
	margin-bottom: 2em;
}

/* 記事一覧 */
.tk-list { list-style: none; margin: 0; padding: 0; }

.tk-list li {
	border-bottom: 1px solid var(--tk-line);
	padding: 1.3rem 0;
}

.tk-list time {
	display: block;
	font-size: .8rem;
	letter-spacing: .12em;
	color: var(--tk-muted);
}

.tk-list a {
	font-family: var(--tk-serif);
	font-size: 1.05rem;
	text-decoration: none;
	color: var(--tk-navy-800);
}

.tk-list a:hover { color: var(--tk-gold); }

.tk-empty {
	text-align: center;
	color: var(--tk-muted);
	padding: 3rem 0;
}

/* ==========================================================================
   8. ボタン・フォーム（Newsletter プラグインと解除フォーム）
   ========================================================================== */

.tk-button,
.tk-entry .tnp-submit,
.shutoken-unsubscribe-form button,
.tnp-button-form .tnp-submit {
	display: inline-block;
	background: var(--tk-gold);
	color: #fff;
	font-family: var(--tk-serif);
	font-size: 1rem;
	letter-spacing: .16em;
	border: 0;
	border-radius: 2px;
	padding: .85em 2.6em;
	cursor: pointer;
	text-decoration: none;
	transition: background .15s ease;
	-webkit-appearance: none;
	appearance: none;
}

.tk-button:hover,
.tk-entry .tnp-submit:hover,
.shutoken-unsubscribe-form button:hover,
.tnp-button-form .tnp-submit:hover {
	background: var(--tk-navy-700);
	color: #fff;
}

.tk-entry input[type="email"],
.tk-entry input[type="text"],
.tk-entry select {
	width: 100%;
	max-width: 26rem;
	font: inherit;
	color: var(--tk-ink);
	background: #fdfcf9;
	border: 1px solid var(--tk-line);
	border-radius: 2px;
	padding: .7em .9em;
}

.tk-entry input[type="email"]:focus,
.tk-entry input[type="text"]:focus,
.tk-entry select:focus {
	border-color: var(--tk-gold);
	outline: none;
	box-shadow: 0 0 0 3px rgba(184, 145, 63, .16);
}

/* 卒業回生などのプルダウン。ネイティブの矢印を金の山形に差し替える */
.tk-entry select {
	-webkit-appearance: none;
	appearance: none;
	padding-right: 2.4em;
	background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%23b8913f' d='M1 1.5 6 6.5l5-5'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right .95em center;
	background-size: .7em auto;
}

.tk-entry label {
	display: inline-block;
	font-size: .88rem;
	letter-spacing: .1em;
	color: var(--tk-muted);
	margin-bottom: .4em;
}

/* Newsletter プラグインが出力するフォーム */
.tnp-subscription,
.tnp-subscription-minimal { margin: 0; max-width: 26rem; }

.tnp-field { margin-bottom: 1.2em; }

.tnp-field-button { margin-top: 1.6em; }

/* 登録・解除フローの結果メッセージ */
.shutoken-newsletter-message,
.shutoken-form-message {
	font-family: var(--tk-serif);
	letter-spacing: .04em;
	border-left: 3px solid var(--tk-gold);
	background: #fbf7ed !important;
	color: var(--tk-navy-800);
	border-radius: 0 3px 3px 0 !important;
}

.shutoken-newsletter-message p:last-child,
.shutoken-form-message:last-child { margin-bottom: 0; }

.shutoken-form-message--error {
	border-left-color: #a8332a;
	background: #fbf0ef !important;
}

/* ==========================================================================
   9. フッター
   ========================================================================== */

.tk-footer {
	background: var(--tk-navy-900);
	color: #c4ceda;
	border-top: 3px solid var(--tk-gold);
	padding-block: 3rem;
	font-size: .85rem;
	letter-spacing: .08em;
	text-align: center;
}

.tk-footer a { color: var(--tk-gold-pale); }

.tk-footer__name {
	font-family: var(--tk-serif);
	font-size: 1.05rem;
	letter-spacing: .2em;
	color: #fff;
	margin: 0 0 1em;
}

.tk-footer__links {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 1.6rem;
	margin: 0 0 1.6em;
	padding: 0;
}

.tk-footer__copyright {
	margin: 0;
	font-size: .78rem;
	color: #8e9bab;
	letter-spacing: .1em;
}

/* ==========================================================================
   10. 画面幅の調整
   ========================================================================== */

@media (max-width: 600px) {
	body { font-size: 15px; line-height: 1.9; }

	.tk-header__inner { flex-direction: column; align-items: flex-start; }

	.tk-nav ul { gap: 1.1rem; }

	.tk-rule::before,
	.tk-rule::after { max-width: 2.5rem; }
}