:root {
    --ink: #173247;
    --muted: #5d7180;
    --surface: #ffffff;
    --surface-soft: #f4f8fa;
    --line: #dce6ed;
    --blue: #1265a8;
    --blue-dark: #0c4778;
    --teal: #0c8b86;
    --orange: #e86e2f;
    --shadow: 0 18px 50px rgba(30, 62, 84, .12);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--surface-soft);
    line-height: 1.65;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface-soft); }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .7rem 1rem; background: white; border-radius: .5rem; }
.skip-link:focus { top: 1rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(220,230,237,.9); background: rgba(255,255,255,.94); backdrop-filter: blur(16px); }
.nav-row { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: flex; align-items: center; gap: .85rem; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 43px; height: 43px; border-radius: 13px; color: white; background: linear-gradient(145deg, var(--blue), var(--teal)); font-weight: 800; box-shadow: 0 8px 22px rgba(18,101,168,.22); }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 1.02rem; letter-spacing: -.02em; }
.brand small { color: var(--muted); font-size: .78rem; }
nav { display: flex; align-items: center; gap: 1.15rem; }
nav a { text-decoration: none; font-weight: 650; font-size: .9rem; }
nav a:hover { color: var(--blue); }

.hero, .detail-hero { overflow: hidden; color: white; background: radial-gradient(circle at 82% 18%, rgba(43,190,183,.33), transparent 30%), linear-gradient(135deg, #0b365d 0%, #1265a8 56%, #0b7975 100%); }
.hero-grid { min-height: 570px; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(300px, .75fr); gap: clamp(2rem, 6vw, 6rem); align-items: center; padding-block: 76px; }
.eyebrow { margin: 0 0 .8rem; color: var(--teal); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero .eyebrow, .detail-hero .eyebrow, .cta-card .eyebrow { color: #49e0d7; }
.hero h1 { max-width: 820px; margin: 0; font-size: clamp(2.7rem, 6vw, 5.2rem); line-height: 1.02; letter-spacing: -.055em; }
.hero-copy { max-width: 780px; margin: 1.45rem 0 0; color: rgba(255,255,255,.84); font-size: clamp(1.05rem, 2vw, 1.24rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .75rem 1.2rem; border: 1px solid transparent; border-radius: 12px; text-decoration: none; font-weight: 750; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: var(--blue-dark); background: white; box-shadow: 0 13px 30px rgba(0,0,0,.18); }
.button.secondary { color: white; border-color: rgba(255,255,255,.45); background: rgba(255,255,255,.08); }
.button.light { color: var(--blue-dark); background: white; white-space: nowrap; }
.button.dark { color: white; background: var(--blue-dark); }
.hero-card { position: relative; padding: 2rem; border: 1px solid rgba(255,255,255,.22); border-radius: 26px; background: rgba(7,38,65,.34); box-shadow: 0 24px 70px rgba(0,0,0,.22); backdrop-filter: blur(13px); }
.hero-card h2 { margin: .8rem 0 1rem; font-size: 1.7rem; line-height: 1.18; }
.hero-card ul { margin: 0; padding-left: 1.2rem; color: rgba(255,255,255,.86); }
.hero-card li + li { margin-top: .65rem; }
.hero-code { display: inline-flex; padding: .34rem .62rem; border-radius: 8px; color: #052e35; background: #63e3da; font: 800 .78rem ui-monospace, SFMono-Regular, Menlo, monospace; }

.trust-strip { border-bottom: 1px solid var(--line); background: white; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid article { padding: 1.55rem 1.3rem; border-right: 1px solid var(--line); }
.trust-grid article:first-child { padding-left: 0; }
.trust-grid article:last-child { border-right: 0; }
.trust-grid strong, .trust-grid span { display: block; }
.trust-grid strong { font-size: 1.22rem; }
.trust-grid span { color: var(--muted); font-size: .82rem; }

.course-section, .books-section { padding-block: 82px 94px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 2rem; }
.section-heading h2, .learning-section h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.1; letter-spacing: -.04em; }
.narrow-heading { align-items: start; }
.heading-copy { max-width: 520px; margin: 0; color: var(--muted); }
.course-count { margin: 0; color: var(--muted); white-space: nowrap; }
.course-count strong { color: var(--ink); font-size: 1.45rem; }
.filters { display: grid; gap: 1rem; margin-bottom: 2rem; }
.search-field { position: relative; display: block; max-width: 610px; }
.search-field svg { position: absolute; left: 1rem; top: 50%; width: 20px; transform: translateY(-50%); fill: none; stroke: var(--muted); stroke-width: 1.8; stroke-linecap: round; }
.search-field input { width: 100%; min-height: 52px; padding: .8rem 1rem .8rem 3rem; border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: white; box-shadow: 0 8px 25px rgba(30,62,84,.05); outline: none; }
.search-field input:focus, input:focus, textarea:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(18,101,168,.12); outline: none; }
.filter-buttons { display: flex; flex-wrap: wrap; gap: .55rem; }
.filter-button { padding: .55rem .85rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: white; cursor: pointer; }
.filter-button:hover, .filter-button.is-active { color: white; border-color: var(--blue); background: var(--blue); }
.course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.course-card { display: flex; flex-direction: column; min-height: 100%; padding: 1.45rem; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); box-shadow: 0 8px 28px rgba(30,62,84,.07); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.course-card:hover { transform: translateY(-5px); border-color: #b7cfdf; box-shadow: var(--shadow); }
.course-card[hidden] { display: none; }
.card-topline { min-height: 31px; display: flex; align-items: start; justify-content: space-between; gap: .7rem; }
.topic-list { display: flex; flex-wrap: wrap; gap: .35rem; }
.topic-badge { padding: .25rem .52rem; border-radius: 999px; color: var(--blue-dark); background: #e8f3fb; font-size: .7rem; font-weight: 760; }
.availability { color: var(--teal); font-size: .72rem; font-weight: 800; white-space: nowrap; }
.course-card h3 { margin: 1rem 0 .5rem; font-size: 1.35rem; line-height: 1.22; letter-spacing: -.025em; }
.subtitle { margin: -.1rem 0 .5rem; color: var(--blue); font-weight: 650; }
.summary { flex-grow: 1; margin: .4rem 0 1.2rem; color: var(--muted); font-size: .94rem; }
.date-block { padding: .9rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.date-block strong, .date-block span { display: block; }
.date-block strong { font-size: .95rem; }
.date-block span { color: var(--muted); font-size: .82rem; }
details { margin-top: .35rem; }
details summary { color: var(--blue); font-size: .82rem; font-weight: 680; cursor: pointer; }
details ul { margin: .45rem 0 0; padding-left: 1.15rem; color: var(--muted); font-size: .82rem; }
.card-link, .text-link, .side-card a { display: flex; justify-content: space-between; gap: .7rem; margin-top: 1rem; color: var(--blue); text-decoration: none; font-weight: 760; }
.card-link:hover, .text-link:hover, .side-card a:hover { color: var(--orange); }
.notice { margin-bottom: 1.5rem; padding: 1rem 1.15rem; border-radius: 14px; }
.notice.warning { color: #684b00; border: 1px solid #eed78f; background: #fff8dc; }
.notice.error { color: #7a2020; border: 1px solid #efbaba; background: #fff0f0; }
.notice.success { color: #125c42; border: 1px solid #a6d9c5; background: #eefaf5; }
.notice h3 { margin: 0 0 .25rem; }
.notice p { margin: .25rem 0; }
.empty-result { padding: 2rem; text-align: center; color: var(--muted); }

.profile-section { padding-block: 90px; background: white; }
.trainer-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
.trainer-card { display: grid; grid-template-columns: auto 1fr; gap: 1.3rem; padding: 2rem; border: 1px solid var(--line); border-radius: 24px; background: var(--surface-soft); }
.trainer-initials { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 19px; color: white; background: linear-gradient(145deg, var(--blue), var(--teal)); font-weight: 850; font-size: 1.15rem; }
.trainer-card h3 { margin: 0; font-size: 1.65rem; }
.trainer-card p { color: var(--muted); }
.trainer-role { margin: .1rem 0 1rem; color: var(--blue) !important; font-weight: 700; }
.client-panel { margin-top: 1.4rem; padding: 1.5rem 1.7rem; border-radius: 20px; color: white; background: #123a55; }
.client-panel strong { display: block; margin-bottom: .8rem; }
.client-list { display: flex; flex-wrap: wrap; gap: .55rem; }
.client-list span { padding: .35rem .65rem; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; color: rgba(255,255,255,.88); font-size: .82rem; }

.learning-section { padding-block: 92px; color: white; background: #10283a; }
.learning-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; }
.learning-section p { color: rgba(255,255,255,.76); }
.check-list { padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 1.8rem; margin-top: .7rem; color: rgba(255,255,255,.86); }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: #49e0d7; font-weight: 900; }
.learning-card { padding: 1.6rem; border: 1px solid rgba(255,255,255,.14); border-radius: 22px; background: #081c2b; box-shadow: 0 30px 70px rgba(0,0,0,.25); }
.terminal-dot-row { display: flex; gap: .35rem; margin-bottom: 1.2rem; }
.terminal-dot-row i { width: 10px; height: 10px; border-radius: 50%; background: #ef7567; }
.terminal-dot-row i:nth-child(2) { background: #e7be55; }
.terminal-dot-row i:nth-child(3) { background: #61c884; }
.learning-card pre { margin: 0; color: #9ff3dc; font-size: 1rem; overflow: auto; }
.learning-card p { margin: 1.3rem 0 0; }

.book-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.book-grid-three { grid-template-columns: repeat(3, 1fr); }
.book-card { min-height: 250px; padding: 1.5rem; border: 1px solid var(--line); border-radius: 20px; background: white; box-shadow: 0 8px 28px rgba(30,62,84,.06); }
.book-card > span { display: inline-flex; align-items: center; justify-content: center; min-height: 32px; padding: .35rem .65rem; border-radius: 999px; color: white; background: var(--blue); font-weight: 800; font-size: .75rem; letter-spacing: .035em; text-transform: uppercase; }
.book-card h3 { margin: 1.45rem 0 .6rem; line-height: 1.2; }
.book-card p { margin: 0; color: var(--blue); font-weight: 700; }
.book-card small { display: block; margin-top: 1rem; color: var(--muted); }
.included-book-note { display: flex; justify-content: space-between; gap: 1.5rem; margin: 0 0 1.35rem; padding: 1.15rem 1.35rem; border: 1px solid #b7d8ce; border-radius: 16px; background: #edf9f5; }
.included-book-note strong { color: #0c624d; }
.included-book-note span { color: #41665c; }
.book-meta { margin: 1.15rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); }
.book-meta div { display: grid; grid-template-columns: 78px 1fr; gap: .7rem; padding: .22rem 0; }
.book-meta dt { color: var(--muted); font-size: .78rem; font-weight: 700; }
.book-meta dd { margin: 0; color: var(--ink); font-size: .84rem; font-weight: 650; }
.elearning-note { margin: 1.25rem 0 0; padding: 1rem 1.2rem; border-left: 4px solid var(--blue); background: #edf5fb; color: var(--muted); }

.cta-section { padding: 0 0 90px; }
.cta-card { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: clamp(2rem, 5vw, 4rem); border-radius: 28px; color: white; background: linear-gradient(120deg, #0c4778, #0c8b86); box-shadow: var(--shadow); }
.cta-card h2 { margin: 0; font-size: clamp(1.7rem, 4vw, 2.7rem); line-height: 1.1; }
.cta-card p:not(.eyebrow) { max-width: 720px; margin: .8rem 0 0; color: rgba(255,255,255,.82); }

.detail-hero-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(290px, .65fr); gap: clamp(2rem, 6vw, 5rem); align-items: center; padding-block: 70px; }
.breadcrumb { margin: 0 0 1.3rem; color: rgba(255,255,255,.72); }
.breadcrumb a { color: white; }
.breadcrumb span { padding: 0 .5rem; }
.light-badge { color: #073f55; background: #7ce7df; }
.detail-hero h1 { margin: 1rem 0 .8rem; font-size: clamp(2.45rem, 5vw, 4.5rem); line-height: 1.04; letter-spacing: -.045em; }
.detail-subtitle { margin: 0; color: #8df0e8; font-weight: 750; font-size: 1.15rem; }
.detail-lead { max-width: 780px; color: rgba(255,255,255,.85); font-size: 1.1rem; }
.date-panel { padding: 1.6rem; border: 1px solid rgba(255,255,255,.2); border-radius: 22px; background: rgba(5,34,54,.36); }
.date-panel h2 { margin-top: 0; }
.date-panel ul { padding: 0; list-style: none; }
.date-panel li { padding: .75rem 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.date-panel li strong, .date-panel li span { display: block; }
.date-panel li span { color: rgba(255,255,255,.7); font-size: .85rem; }
.date-panel .text-link { color: white; }
.detail-content { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 3rem; padding-block: 78px 95px; }
.content-block + .content-block { margin-top: 4rem; }
.content-block h2 { margin: 0 0 1.2rem; font-size: clamp(1.9rem, 3vw, 2.7rem); line-height: 1.15; }
.rich-text { color: #334d60; }
.rich-text ul, .rich-text ol { padding-left: 1.4rem; }
.rich-text li + li { margin-top: .4rem; }
.rich-text h2, .rich-text h3, .rich-text h4 { margin-top: 2rem; color: var(--ink); }
.rich-text hr { border: 0; border-top: 1px solid var(--line); }
.detail-side { display: grid; align-content: start; gap: 1rem; }
.side-card { padding: 1.35rem; border: 1px solid var(--line); border-radius: 18px; background: white; }
.side-card h3 { margin-top: 0; }
.side-card p { color: var(--muted); }
.compact-rich { font-size: .9rem; }

.simple-page { min-height: 60vh; padding-block: 80px 100px; }
.simple-page > h1, .contact-intro h1 { margin: 0 0 1.2rem; font-size: clamp(2.4rem, 5vw, 4.4rem); line-height: 1.04; letter-spacing: -.045em; }
.legal-page { max-width: 850px; }
.legal-page h2 { margin-top: 2.5rem; }
.legal-note { margin-top: 2.5rem; padding: 1rem; border-left: 4px solid var(--orange); background: #fff4ec; }
.contact-page { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.contact-intro > p { color: var(--muted); }
.contact-facts { margin-top: 2rem; }
.contact-facts p { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.contact-facts strong, .contact-facts span { display: block; }
.contact-facts span { color: var(--muted); font-size: .9rem; }
.form-card { padding: 2rem; border: 1px solid var(--line); border-radius: 24px; background: white; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.form-grid label { color: var(--ink); font-size: .88rem; font-weight: 700; }
.form-grid input, .form-grid textarea, .form-grid select { width: 100%; margin-top: .35rem; padding: .78rem .85rem; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: white; font-weight: 400; }
.full-field { grid-column: 1 / -1; }
.spam-protection { padding: 1rem 1.1rem; border: 1px solid #d8cfa9; border-radius: 14px; background: #fffaf0; }
.spam-protection > strong { display: block; color: #74530b; font-size: .98rem; }
.spam-protection > p { margin: .25rem 0 .75rem; color: #6b6250; font-size: .84rem; font-weight: 400; }
.spam-protection label { display: block; max-width: 360px; }
.privacy-check { display: flex; gap: .65rem; align-items: start; margin: 1.1rem 0 1.4rem; color: var(--muted); font-size: .88rem; }
.privacy-check input { margin-top: .25rem; }
.trap { position: absolute !important; left: -10000px !important; }

.site-footer { color: #d7e6ef; background: #10283a; }
.footer-grid { min-height: 120px; display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.footer-grid p { margin: .25rem 0 0; color: #9fb4c3; }
.footer-grid nav a { color: white; }
.copyright { padding: 1rem 0 1.5rem; border-top: 1px solid rgba(255,255,255,.1); color: #8fa5b4; font-size: .82rem; }

@media (max-width: 1000px) {
    nav { gap: .8rem; }
    nav a { font-size: .82rem; }
    .course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hero-grid, .detail-hero-grid, .learning-grid, .detail-content, .contact-page { grid-template-columns: 1fr; }
    .hero-card { max-width: 650px; }
    .date-panel { max-width: 650px; }
    .detail-side { grid-template-columns: repeat(2, 1fr); }
    .book-grid, .book-grid-three { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
    .shell { width: min(100% - 24px, 1180px); }
    .nav-row { min-height: 68px; }
    .brand small { display: none; }
    .site-header nav > a:not(:last-child) { display: none; }
    .hero-grid { padding-block: 55px; }
    .hero h1 { font-size: clamp(2.45rem, 13vw, 4rem); }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-grid article { border-bottom: 1px solid var(--line); }
    .trust-grid article:nth-child(2) { border-right: 0; }
    .course-section, .books-section { padding-block: 60px 72px; }
    .section-heading, .cta-card, .footer-grid { align-items: flex-start; flex-direction: column; }
    .trainer-grid, .course-grid, .detail-side, .form-grid { grid-template-columns: 1fr; }
    .trainer-card { grid-template-columns: 1fr; }
    .full-field { grid-column: auto; }
    .book-grid, .book-grid-three { grid-template-columns: 1fr; }
    .included-book-note { flex-direction: column; gap: .35rem; }
    .cta-card { border-radius: 22px; }
    .footer-grid { justify-content: center; padding-block: 2rem; gap: 1rem; }
    .footer-grid nav { flex-wrap: wrap; }
}