/* =========================================================
 * UPSTART theme - main.css
 * Color: Navy x Orange
 * =======================================================*/

/* ---------- Design tokens ---------- */
:root {
    --color-navy-900: #0b1d3a;
    --color-navy-800: #112a55;
    --color-navy-700: #1a3a73;
    --color-navy-500: #2e5aa8;
    --color-orange-500: #ff7a1a;
    --color-orange-600: #e8650b;
    --color-orange-100: #fff2e6;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f7fb;
    --color-text: #1a2540;
    --color-text-muted: #5a6477;
    --color-border: #e3e7ef;
    --color-white: #ffffff;

    --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
    --font-en: "Montserrat", "Helvetica Neue", Arial, sans-serif;

    --container: 1120px;
    --container-narrow: 800px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-md: 0 10px 30px rgba(11, 29, 58, 0.08);
    --shadow-lg: 0 20px 50px rgba(11, 29, 58, 0.12);
    --header-h: 80px;
    --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
    margin: 0;
    font-family: var(--font-jp);
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-navy-700); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-orange-500); }
ul, ol { padding-left: 1.25em; }
h1, h2, h3, h4 { line-height: 1.4; margin: 0 0 0.6em; font-weight: 700; letter-spacing: 0.02em; }

.screen-reader-text {
    position: absolute !important;
    clip: rect(1px, 1px, 1px, 1px);
    width: 1px; height: 1px;
    overflow: hidden;
}
.skip-link {
    position: absolute; top: -100px; left: 0; padding: 8px 16px;
    background: var(--color-navy-900); color: #fff; z-index: 1000;
}
.skip-link:focus { top: 0; }

.is-hidden-sp { display: inline; }

/* ---------- Layout ---------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
.container--narrow { max-width: var(--container-narrow); }

.section {
    padding: 100px 0;
    position: relative;
}
.section--page { padding-top: calc(var(--header-h) + 60px); }
.section__head {
    text-align: center;
    margin-bottom: 60px;
}
.section__eyebrow {
    font-family: var(--font-en);
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-orange-500);
    margin: 0 0 0.6em;
    font-size: 14px;
}
.section__title {
    font-size: clamp(28px, 4vw, 38px);
    margin: 0;
    color: var(--color-navy-900);
}
.section__title::after {
    content: "";
    display: block;
    width: 56px; height: 3px;
    background: var(--color-orange-500);
    margin: 16px auto 0;
}
.section__desc { margin-top: 20px; color: var(--color-text-muted); }
.section__head--invert .section__title { color: #fff; }
.section__head--invert .section__desc { color: rgba(255,255,255,0.85); }
.section__head--invert .section__eyebrow { color: var(--color-orange-500); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 200px;
    padding: 16px 28px;
    border-radius: 999px;
    font-weight: 700;
    letter-spacing: 0.06em;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
    text-align: center;
}
.btn--primary {
    background: var(--color-orange-500);
    color: #fff;
    box-shadow: 0 10px 24px rgba(255, 122, 26, 0.35);
}
.btn--primary:hover {
    background: var(--color-orange-600);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(255, 122, 26, 0.45);
}
.btn--ghost {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.6);
}
.btn--ghost:hover {
    background: #fff;
    color: var(--color-navy-900);
    border-color: #fff;
}

/* ---------- Header ---------- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(10px);
    -webkit-backdrop-filter: saturate(180%) blur(10px);
    z-index: 100;
    transition: box-shadow var(--transition), background var(--transition);
}
.site-header.is-scrolled {
    background: #fff;
    box-shadow: 0 6px 20px rgba(11, 29, 58, 0.08);
}
.site-header__inner {
    height: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.site-header__title {
    display: flex;
    flex-direction: column;
    color: var(--color-navy-900);
    line-height: 1.1;
}
.site-header__title-main {
    font-family: var(--font-en);
    font-weight: 900;
    font-size: 26px;
    letter-spacing: 0.08em;
}
.site-header__title-sub {
    font-size: 11px;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    margin-top: 2px;
}
.site-header .custom-logo-link img {
    max-height: 50px;
    width: auto;
}

/* Nav */
.site-nav__toggle {
    display: none;
    width: 44px; height: 44px;
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 110;
}
.site-nav__toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-navy-900);
    margin: 5px auto;
    transition: transform var(--transition), opacity var(--transition);
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(2) { opacity: 0; }
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.site-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 28px;
}
.site-nav__list a {
    color: var(--color-navy-900);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    padding: 6px 0;
}
.site-nav__list a::after {
    content: "";
    position: absolute;
    left: 0; bottom: 0;
    width: 100%; height: 2px;
    background: var(--color-orange-500);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}
.site-nav__list a:hover { color: var(--color-orange-500); }
.site-nav__list a:hover::after { transform: scaleX(1); }
.site-nav__list .current-menu-item > a,
.site-nav__list .is-current > a { color: var(--color-orange-500); }

.site-nav__list .site-nav__cta a,
.site-nav__list li.site-nav__cta > a,
.site-nav__list .menu-item-cta > a {
    background: var(--color-orange-500);
    color: #fff;
    padding: 10px 22px;
    border-radius: 999px;
    box-shadow: 0 8px 18px rgba(255, 122, 26, 0.3);
}
.site-nav__list .site-nav__cta a:hover,
.site-nav__list .menu-item-cta > a:hover {
    background: var(--color-orange-600);
    color: #fff;
}
.site-nav__list .site-nav__cta a::after,
.site-nav__list .menu-item-cta > a::after { display: none; }

/* ---------- Main ---------- */
.site-main { padding-top: var(--header-h); }
.is-front-page .site-main { padding-top: 0; }

/* ---------- Hero ---------- */
.section--hero { padding: 0; }
.hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-navy-900) 0%, var(--color-navy-700) 60%, var(--color-navy-500) 100%);
    color: #fff;
    overflow: hidden;
    display: flex;
    align-items: center;
}
.hero__inner {
    position: relative;
    z-index: 2;
    max-width: var(--container);
    width: 100%;
    margin: 0 auto;
    padding: 140px 24px 100px;
}
.hero__eyebrow {
    font-family: var(--font-en);
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--color-orange-500);
    margin: 0 0 24px;
    font-size: 14px;
}
.hero__title {
    font-size: clamp(34px, 6vw, 64px);
    font-weight: 900;
    margin: 0 0 28px;
    line-height: 1.25;
    letter-spacing: 0.02em;
}
.hero__title-accent {
    background: linear-gradient(180deg, transparent 60%, rgba(255,122,26,0.35) 60%);
    color: var(--color-orange-500);
}
.hero__lead {
    font-size: clamp(15px, 1.6vw, 18px);
    line-height: 2;
    margin: 0 0 40px;
    color: rgba(255,255,255,0.9);
}
.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}
.hero__decoration {
    position: absolute;
    right: -120px;
    top: -120px;
    width: 540px;
    height: 540px;
    background: radial-gradient(closest-side, rgba(255,122,26,0.35), transparent 70%);
    filter: blur(8px);
    z-index: 1;
}
.hero::after {
    content: "";
    position: absolute;
    left: -150px; bottom: -150px;
    width: 480px; height: 480px;
    background: radial-gradient(closest-side, rgba(46, 90, 168, 0.6), transparent 70%);
    z-index: 1;
}

/* ---------- About ---------- */
.section--about { background: var(--color-bg); }
.about__grid {
    display: grid;
    gap: 60px;
}
.about__lead { font-size: 17px; line-height: 2; color: var(--color-text); text-align: center; }
.about__points {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.about__points li {
    background: var(--color-bg-alt);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}
.about__points li:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}
.about__points-num {
    font-family: var(--font-en);
    font-weight: 900;
    color: var(--color-orange-500);
    font-size: 32px;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 8px;
}
.about__points h3 { font-size: 18px; color: var(--color-navy-900); margin: 0 0 12px; }
.about__points p { margin: 0; color: var(--color-text-muted); font-size: 15px; }

/* ---------- Services ---------- */
.section--services { background: var(--color-bg-alt); }
.services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 880px;
    margin: 0 auto;
}
.service-card {
    background: #fff;
    padding: 44px 32px;
    border-radius: var(--radius-lg);
    box-shadow: 0 6px 20px rgba(11, 29, 58, 0.05);
    transition: transform var(--transition), box-shadow var(--transition);
    border-top: 4px solid var(--color-navy-700);
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}
.service-card--accent { border-top-color: var(--color-orange-500); }
.service-card__icon {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: var(--color-orange-100);
    color: var(--color-orange-500);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 20px;
}
.service-card__title {
    font-size: 22px;
    color: var(--color-navy-900);
    margin: 0 0 12px;
}
.service-card__lead { color: var(--color-text-muted); margin: 0 0 18px; font-size: 15px; }
.service-card__list {
    list-style: none;
    padding: 0; margin: 0;
}
.service-card__list li {
    position: relative;
    padding-left: 22px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text);
}
.service-card__list li::before {
    content: "";
    position: absolute;
    left: 0; top: 0.7em;
    width: 10px; height: 2px;
    background: var(--color-orange-500);
}

/* ---------- Flow ---------- */
.section--flow { background: var(--color-bg); }
.flow {
    list-style: none;
    margin: 0; padding: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: flow;
}
.flow__item {
    background: var(--color-bg-alt);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    position: relative;
    border-left: 4px solid var(--color-orange-500);
}
.flow__step {
    font-family: var(--font-en);
    font-weight: 700;
    color: var(--color-orange-500);
    font-size: 13px;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 10px;
}
.flow__item h3 { font-size: 18px; margin: 0 0 8px; color: var(--color-navy-900); }
.flow__item p { margin: 0; color: var(--color-text-muted); font-size: 14px; }

/* ---------- Company ---------- */
.section--company { background: var(--color-bg-alt); }
.company-table {
    margin: 0;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(11, 29, 58, 0.05);
}
.company-table__row {
    display: grid;
    grid-template-columns: 200px 1fr;
    border-bottom: 1px solid var(--color-border);
}
.company-table__row:last-child { border-bottom: 0; }
.company-table dt {
    background: var(--color-navy-900);
    color: #fff;
    padding: 18px 24px;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.05em;
}
.company-table dd {
    padding: 18px 24px;
    margin: 0;
    color: var(--color-text);
    font-size: 15px;
}

/* ---------- Contact ---------- */
.section--contact {
    background: linear-gradient(135deg, var(--color-navy-900) 0%, var(--color-navy-700) 100%);
    color: #fff;
}
.contact-form {
    background: #fff;
    color: var(--color-text);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.cf7-fallback {
    padding: 24px;
    background: #fffbe6;
    border: 1px dashed #d4b400;
    color: #7d6500;
    border-radius: var(--radius-sm);
    text-align: center;
}

/* Contact Form 7 baseline styles */
.contact-form .wpcf7-form p { margin: 0 0 24px; }
.contact-form .wpcf7-form > p:last-of-type,
.contact-form .wpcf7-form p:has(> .wpcf7-submit) {
    text-align: center;
    margin: 8px 0 0;
}

.contact-form label {
    display: block;
    font-weight: 700;
    color: var(--color-navy-900);
    font-size: 14px;
    letter-spacing: 0.04em;
    line-height: 1.6;
}
.contact-form .wpcf7-form-control-wrap {
    display: block;
    margin-top: 8px;
}

/* 必須マーク: required input を含む label に "*" を付ける */
.contact-form label:has(.wpcf7-validates-as-required)::after {
    content: " *";
    color: #e74c3c;
    font-weight: 700;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="tel"],
.contact-form input[type="url"],
.contact-form input[type="number"],
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font: inherit;
    background: #fff;
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: #a8b0bf; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-orange-500);
    box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.15);
}
.contact-form textarea { min-height: 180px; resize: vertical; }

.contact-form .wpcf7-submit,
.contact-form input[type="submit"] {
    display: inline-block;
    background: var(--color-orange-500);
    color: #fff;
    border: 0;
    padding: 16px 56px;
    border-radius: 999px;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    font: inherit;
    letter-spacing: 0.08em;
    box-shadow: 0 10px 24px rgba(255, 122, 26, 0.3);
    min-width: 220px;
}
.contact-form .wpcf7-submit:hover,
.contact-form input[type="submit"]:hover {
    background: var(--color-orange-600);
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(255, 122, 26, 0.4);
}
.contact-form .wpcf7-submit:disabled,
.contact-form input[type="submit"]:disabled {
    opacity: 0.6;
    cursor: wait;
    transform: none;
}

.contact-form .wpcf7-not-valid-tip {
    color: #e74c3c;
    font-size: 13px;
    margin-top: 6px;
    display: block;
    font-weight: 500;
}
.contact-form .wpcf7-not-valid {
    border-color: #e74c3c !important;
    background: #fff5f5;
}
.contact-form .wpcf7-response-output {
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin: 20px 0 0;
    border-width: 1px;
    font-size: 14px;
    line-height: 1.7;
}
.contact-form .wpcf7 form.sent .wpcf7-response-output {
    border-color: #2ecc71;
    background: #f0faf4;
    color: #1e7e44;
}
.contact-form .wpcf7 form.invalid .wpcf7-response-output,
.contact-form .wpcf7 form.unaccepted .wpcf7-response-output {
    border-color: #e74c3c;
    background: #fff5f5;
    color: #c0392b;
}

.contact-form .wpcf7-spinner {
    margin: 0 0 0 12px;
    vertical-align: middle;
}

/* ---------- Page (legal, default) ---------- */
.page-article {
    background: #fff;
    padding: 60px clamp(24px, 5vw, 60px);
    border-radius: var(--radius-lg);
    box-shadow: 0 6px 20px rgba(11, 29, 58, 0.05);
}
.page-article__head { margin-bottom: 40px; border-bottom: 1px solid var(--color-border); padding-bottom: 24px; }
.page-article__eyebrow {
    font-family: var(--font-en);
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-orange-500);
    margin: 0 0 8px;
    font-size: 13px;
}
.page-article__title {
    font-size: clamp(26px, 4vw, 34px);
    color: var(--color-navy-900);
    margin: 0 0 16px;
}
.page-article__lead { color: var(--color-text-muted); margin: 0; }
.page-article__body h2 {
    font-size: 20px;
    color: var(--color-navy-900);
    margin: 40px 0 16px;
    padding-left: 14px;
    border-left: 4px solid var(--color-orange-500);
}
.page-article__body p { margin: 0 0 1em; }
.page-article__body ol, .page-article__body ul { margin: 0 0 1em; padding-left: 1.6em; }
.page-article__body li { margin-bottom: 0.4em; }

/* ---------- 404 ---------- */
.error-404 { text-align: center; padding: 40px 0; }
.error-404__code {
    font-family: var(--font-en);
    font-size: clamp(80px, 16vw, 160px);
    font-weight: 900;
    color: var(--color-navy-900);
    line-height: 1;
    margin: 0 0 8px;
    letter-spacing: 0.05em;
}
.error-404__title { font-size: 24px; color: var(--color-navy-900); margin: 0 0 16px; }
.error-404__desc { color: var(--color-text-muted); margin: 0 0 32px; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-navy-900);
    color: rgba(255,255,255,0.85);
    padding: 64px 0 0;
}
.site-footer a { color: rgba(255,255,255,0.85); }
.site-footer a:hover { color: var(--color-orange-500); }
.site-footer__inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px 40px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
}
.site-footer__logo {
    font-family: var(--font-en);
    font-weight: 900;
    font-size: 28px;
    letter-spacing: 0.08em;
    margin: 0 0 8px;
    color: #fff;
}
.site-footer__tagline { font-size: 13px; color: rgba(255,255,255,0.7); margin: 0 0 16px; letter-spacing: 0.04em; }
.site-footer__address { font-style: normal; font-size: 14px; line-height: 1.9; }
.site-footer__list {
    list-style: none;
    margin: 0; padding: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 24px;
}
.site-footer__list a { font-size: 14px; }
.site-footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 24px;
    text-align: center;
}
.site-footer__copy { font-size: 12px; color: rgba(255,255,255,0.55); letter-spacing: 0.08em; }

/* ---------- Back to top ---------- */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-orange-500);
    color: #fff !important;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    text-decoration: none;
    box-shadow: 0 10px 24px rgba(255, 122, 26, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition), transform var(--transition), background var(--transition);
    z-index: 90;
}
.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover { background: var(--color-orange-600); color: #fff !important; }

/* ---------- Pagination ---------- */
.pagination { margin-top: 40px; text-align: center; }
.pagination .page-numbers {
    display: inline-block;
    padding: 8px 14px;
    margin: 0 4px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-alt);
    color: var(--color-navy-900);
    text-decoration: none;
    font-size: 14px;
}
.pagination .page-numbers.current,
.pagination .page-numbers:hover {
    background: var(--color-orange-500);
    color: #fff;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .about__points { grid-template-columns: 1fr; }
    .services__grid { grid-template-columns: 1fr; max-width: 480px; }
    .flow { grid-template-columns: repeat(2, 1fr); }
    .site-footer__inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    :root { --header-h: 64px; }
    .section { padding: 72px 0; }
    .section__head { margin-bottom: 40px; }
    .is-hidden-sp { display: none; }

    .site-nav__toggle { display: block; }
    .site-nav__list {
        position: fixed;
        inset: 0;
        background: var(--color-navy-900);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        padding: 80px 24px;
        transform: translateX(100%);
        transition: transform var(--transition);
    }
    .site-nav__list a { color: #fff; font-size: 18px; }
    .site-nav.is-open .site-nav__list { transform: translateX(0); }
    body.is-nav-open { overflow: hidden; }

    .hero__inner { padding: 120px 24px 80px; }
    .hero__actions .btn { width: 100%; min-width: 0; }

    .flow { grid-template-columns: 1fr; }
    .company-table__row { grid-template-columns: 1fr; }
    .company-table dt { padding: 12px 16px; }
    .company-table dd { padding: 12px 16px; }
    .contact-form { padding: 32px 20px; }
    .page-article { padding: 36px 20px; }
    .site-footer__list { grid-template-columns: 1fr; }
}