:root {
    --tu-study-navy: #17283b;
    --tu-study-ink: #082744;
    --tu-study-teal: #2f5d59;
    --tu-study-gold: #c9a24f;
    --tu-study-gold-dark: #8d6c1d;
    --tu-study-soft: #f2f5f7;
    --tu-study-paper: #ffffff;
    --tu-study-muted: #5f7082;
    --tu-study-border: rgba(8, 39, 68, 0.1);
}

* {
    box-sizing: border-box;
}

body.tu-study-home {
    margin: 0;
    background: #fafbfc;
    color: var(--tu-study-ink);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.tu-modal-open {
    overflow: hidden;
}

.tu-study-container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.tu-study-hero {
    background: linear-gradient(135deg, #17283b 0%, #20364c 100%);
    color: #fff;
    padding: clamp(34px, 6vw, 74px) 0;
}

.tu-study-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
}

.tu-study-topbar {
    background: linear-gradient(180deg, #0a1423 0%, #101827 100%);
}

.tu-study-topbar__inner {
    display: flex;
    align-items: center;
    gap: clamp(6px, 1vw, 16px);
    min-height: 72px;
}

.tu-study-topbar__logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    margin-right: 8px;
}

.tu-study-topbar__logo img {
    width: 54px;
    height: 54px;
}

.tu-study-topbar__nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: clamp(2px, 0.5vw, 8px);
    margin: 0;
    padding: 0;
    list-style: none;
}

.tu-study-topbar__toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    margin-left: auto;
    background: transparent;
    border: 0;
    border-radius: 6px;
    color: #fff;
    cursor: pointer;
}

.tu-study-topbar__toggle:hover,
.tu-study-topbar__toggle:focus-visible {
    background: rgba(255, 255, 255, 0.08);
}

.tu-study-topbar__toggle svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.tu-study-topbar__nav a {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding-inline: clamp(9px, 0.8vw, 14px);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
}

.tu-study-topbar__nav a:hover,
.tu-study-topbar__nav a.is-current {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.tu-study-topbar__nav-item {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.tu-study-topbar__submenu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    padding: 0;
    margin-left: 2px;
    background: transparent;
    border: 0;
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.9);
    cursor: pointer;
}

.tu-study-topbar__submenu-toggle:hover,
.tu-study-topbar__submenu-toggle:focus-visible {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.tu-study-topbar__submenu-toggle svg {
    width: 11px;
    height: 11px;
    fill: currentColor;
    transition: transform 0.15s ease;
}

.tu-study-topbar__nav-item.is-open .tu-study-topbar__submenu-toggle svg {
    transform: rotate(180deg);
}

.tu-study-topbar__submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 20;
    min-width: 220px;
    margin: 6px 0 0;
    padding: 8px;
    list-style: none;
    background: #101827;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    box-shadow: 0 18px 40px rgba(8, 39, 68, 0.35);
}

.tu-study-topbar__nav-item.is-open .tu-study-topbar__submenu {
    display: block;
}

.tu-study-topbar__submenu a {
    display: block;
    padding: 9px 12px;
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.tu-study-topbar__submenu a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

@media (min-width: 721px) {
    .tu-study-topbar__nav-item:hover .tu-study-topbar__submenu,
    .tu-study-topbar__nav-item:focus-within .tu-study-topbar__submenu {
        display: block;
    }
}

.tu-study-topbar__icons {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}

.tu-study-topbar__icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.78);
    text-decoration: none;
}

.tu-study-topbar__icons a:hover {
    color: #fff;
}

.tu-study-topbar__icons svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

@media (max-width: 720px) {
    .tu-study-topbar__inner {
        flex-wrap: wrap;
        min-height: 0;
        padding-block: 12px;
        position: relative;
    }

    .tu-study-topbar__toggle {
        display: inline-flex;
    }

    .tu-study-topbar__nav {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        order: 3;
        margin-top: 12px;
        gap: 2px;
    }

    .tu-study-topbar__nav.is-open {
        display: flex;
    }

    .tu-study-topbar__nav a {
        min-height: 42px;
        font-size: 0.85rem;
        padding-inline: 12px;
        width: 100%;
    }

    .tu-study-topbar__icons {
        margin-left: 0;
    }

    .tu-study-topbar__nav-item {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .tu-study-topbar__nav-item > a {
        flex: 1 1 auto;
    }

    .tu-study-topbar__submenu-toggle {
        position: absolute;
        top: 4px;
        right: 4px;
        width: 34px;
        height: 34px;
    }

    .tu-study-topbar__submenu {
        position: static;
        display: none;
        width: 100%;
        margin: 2px 0 4px;
        box-shadow: none;
        background: rgba(255, 255, 255, 0.04);
    }

    .tu-study-topbar__nav-item.is-open .tu-study-topbar__submenu {
        display: block;
    }
}

.tu-study-kicker,
.tu-study-track__top span,
.tu-study-track__top small,
.tu-study-track__content h4 {
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.tu-study-kicker {
    margin: 0 0 14px;
    color: var(--tu-study-gold);
    font-size: 0.78rem;
    font-weight: 800;
}

.tu-study-hero h1,
.tu-study-section h2,
.tu-study-cta h2 {
    margin: 0;
    letter-spacing: 0;
    line-height: 1.08;
}

.tu-study-hero h1 {
    max-width: 860px;
    color: #fff;
    font-size: clamp(1.85rem, 3.3vw, 3.25rem);
}

.tu-study-lead {
    max-width: 800px;
    margin: 24px 0 0;
    color: rgba(255, 255, 255, 0.84);
    font-size: clamp(1.05rem, 1.4vw, 1.24rem);
    line-height: 1.75;
}

.tu-study-actions,
.tu-study-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-top: 30px;
}

.tu-study-button,
.tu-study-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: 6px;
    font-weight: 400;
    letter-spacing: 0.04em;
    text-decoration: none;
    text-transform: uppercase;
}

.tu-study-button {
    border: 1px solid rgba(255, 255, 255, 0.28);
    color: #fff;
    padding: 8px 18px;
}

.tu-study-button--primary {
    border-color: var(--tu-study-gold);
    background: var(--tu-study-gold);
    color: #111;
}

.tu-study-button:hover,
.tu-study-link:hover {
    transform: translateY(-1px);
}

.tu-study-notice {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-left: 4px solid var(--tu-study-gold);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    padding: 24px;
}

.tu-study-notice span {
    display: block;
    margin-bottom: 10px;
    color: var(--tu-study-gold);
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
}

.tu-study-notice p,
.tu-study-intro p,
.tu-study-track p,
.tu-study-cta p {
    line-height: 1.72;
}

.tu-study-notice p {
    margin: 0;
    color: rgba(255, 255, 255, 0.84);
}

.tu-study-section {
    padding: clamp(44px, 6vw, 76px) 0;
}

.tu-study-section--soft {
    background: var(--tu-study-soft);
}

.tu-study-intro,
.tu-study-cta__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.52fr);
    gap: clamp(28px, 5vw, 70px);
    align-items: start;
}

.tu-study-section h2,
.tu-study-cta h2 {
    color: var(--tu-study-ink);
    font-size: clamp(1.8rem, 3vw, 3rem);
}

.tu-study-intro p,
.tu-study-section__header p,
.tu-study-cta p {
    max-width: 820px;
    color: var(--tu-study-muted);
    font-size: 1.06rem;
}

.tu-study-order {
    margin: 0;
    padding: 24px 24px 24px 46px;
    border: 1px solid var(--tu-study-border);
    border-radius: 8px;
    background: var(--tu-study-paper);
    box-shadow: 0 14px 36px rgba(34, 56, 101, 0.06);
}

.tu-study-order li + li {
    margin-top: 12px;
}

.tu-study-section__header {
    margin-bottom: 28px;
}

.tu-study-section__header p {
    margin: 12px 0 0;
}

.tu-study-tracks {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.tu-study-track {
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-height: 100%;
    border: 1px solid var(--tu-study-border);
    border-radius: 8px;
    background: var(--tu-study-paper);
    box-shadow: 0 14px 36px rgba(34, 56, 101, 0.06);
    padding: 24px;
}

.tu-study-track--featured {
    border-left: 5px solid var(--tu-study-gold);
}

.tu-study-track__top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
}

.tu-study-track__top span {
    color: var(--tu-study-gold-dark);
    font-size: 0.78rem;
    font-weight: 800;
}

.tu-study-track__top small {
    color: var(--tu-study-muted);
    font-size: 0.72rem;
}

.tu-study-track h3 {
    margin: 0;
    color: var(--tu-study-ink);
    font-size: clamp(1.35rem, 2vw, 2rem);
    line-height: 1.18;
}

.tu-study-track p {
    margin: 0;
    color: var(--tu-study-muted);
}

.tu-study-track__content {
    border-top: 1px solid var(--tu-study-border);
    padding-top: 16px;
}

.tu-study-track__content h4 {
    margin: 0 0 10px;
    color: var(--tu-study-gold-dark);
    font-size: 0.78rem;
}

.tu-study-track__content ol,
.tu-study-track__content ul {
    margin: 0;
    padding-left: 22px;
}

.tu-study-track__content li + li {
    margin-top: 7px;
}

.tu-study-track__note {
    border-left: 4px solid var(--tu-study-gold);
    color: var(--tu-study-ink) !important;
    margin: 0;
    padding: 4px 0 4px 16px;
}

.tu-study-track__enrol {
    border-top: 1px solid var(--tu-study-border);
    margin-top: auto;
    padding-top: 18px;
}

.tu-study-track__enrol .tu-study-button {
    width: fit-content;
}

.tu-study-track__enrol--soon {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}

.tu-study-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.tu-study-badge--soon {
    background: rgba(95, 113, 132, 0.14);
    color: var(--tu-study-muted);
}

.tu-study-track__enrol-note {
    margin: 0;
    color: var(--tu-study-muted);
    font-size: 0.85rem;
}

.tu-course-link {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--tu-study-ink);
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    padding: 0;
    text-align: left;
    text-decoration: underline;
    text-decoration-color: rgba(201, 162, 79, 0.55);
    text-underline-offset: 4px;
}

.tu-course-link:hover,
.tu-course-link:focus-visible {
    color: var(--tu-study-gold-dark);
}

.tu-course-link:focus-visible,
.tu-course-modal__close:focus-visible,
.tu-study-footer__link:focus-visible {
    outline: 3px solid rgba(201, 162, 79, 0.45);
    outline-offset: 4px;
}

.tu-course-modal[hidden] {
    display: none;
}

.tu-course-modal {
    display: grid;
    place-items: center;
    position: fixed;
    inset: 0;
    z-index: 1000;
    padding: 20px;
}

.tu-course-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 18, 30, 0.72);
    backdrop-filter: blur(4px);
}

.tu-course-modal__panel {
    position: relative;
    width: min(680px, 100%);
    max-height: min(82vh, 720px);
    overflow: auto;
    border: 1px solid rgba(201, 162, 79, 0.28);
    border-radius: 8px;
    background: var(--tu-study-paper);
    box-shadow: 0 28px 70px rgba(8, 18, 30, 0.28);
    padding: clamp(24px, 4vw, 36px);
}

.tu-course-modal__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 14px;
    right: 14px;
    width: 38px;
    height: 38px;
    border: 1px solid var(--tu-study-border);
    border-radius: 6px;
    background: #fff;
    color: var(--tu-study-ink);
    cursor: pointer;
    font-size: 1.55rem;
    line-height: 1;
}

.tu-course-modal__close:hover {
    background: var(--tu-study-soft);
}

.tu-course-modal__kicker {
    display: block;
    margin: 0 44px 12px 0;
    color: var(--tu-study-gold-dark);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.tu-course-modal h2 {
    margin: 0 44px 18px 0;
    color: var(--tu-study-ink);
    font-size: clamp(1.45rem, 3vw, 2.2rem);
    line-height: 1.16;
}

.tu-course-modal p {
    margin: 0;
    color: var(--tu-study-muted);
    font-size: 1.04rem;
    line-height: 1.75;
}

.tu-course-modal p + p {
    margin-top: 16px;
}

.tu-course-modal__panel--document {
    width: min(760px, 100%);
}

.tu-course-modal__panel--form {
    width: min(760px, 100%);
}

.tu-enrol-form {
    display: grid;
    gap: 18px;
    margin-top: 24px;
}

.tu-enrol-form__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.tu-enrol-form label {
    display: grid;
    gap: 7px;
    color: var(--tu-study-ink);
    font-size: 0.95rem;
    font-weight: 700;
}

.tu-enrol-form input {
    min-height: 46px;
    border: 1px solid var(--tu-study-border);
    border-radius: 6px;
    background: #f8fafb;
    color: var(--tu-study-ink);
    font: inherit;
    font-weight: 500;
    padding: 9px 12px;
}

.tu-enrol-form input:focus {
    border-color: var(--tu-study-teal);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(47, 93, 89, 0.16);
    outline: 0;
}

.tu-enrol-form__status {
    border-left: 4px solid var(--tu-study-gold);
    background: #fff8e8;
    color: var(--tu-study-ink);
    line-height: 1.55;
    padding: 12px 14px;
}

.tu-enrol-form__status--error {
    border-left-color: #b64242;
    background: #fff1f1;
}

.tu-enrol-form__trap {
    display: none !important;
}

.tu-study-support {
    background: var(--tu-study-soft);
    padding: 0 0 clamp(44px, 6vw, 76px);
}

.tu-study-support__box {
    display: grid;
    grid-template-columns: minmax(220px, 0.32fr) minmax(0, 1fr);
    gap: clamp(24px, 5vw, 64px);
    border: 1px solid var(--tu-study-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 14px 36px rgba(34, 56, 101, 0.04);
    padding: clamp(24px, 4vw, 36px);
}

.tu-study-support__kicker {
    margin: 0 0 10px;
    color: var(--tu-study-gold-dark);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.tu-study-support h2 {
    margin: 0;
    color: var(--tu-study-ink);
    font-size: clamp(1.35rem, 2.2vw, 2rem);
    line-height: 1.16;
}

.tu-study-support__content {
    max-width: 800px;
}

.tu-study-support__content p {
    margin: 0;
    color: var(--tu-study-muted);
    font-size: 1.02rem;
    line-height: 1.72;
}

.tu-study-support__content p + p {
    margin-top: 14px;
}

.tu-study-support__pix {
    display: grid;
    gap: 7px;
    margin: 18px 0;
    border-left: 4px solid var(--tu-study-gold);
    background: #fff;
    padding: 14px 16px;
}

.tu-study-support__pix span {
    color: var(--tu-study-gold-dark);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.tu-study-support__pix strong {
    color: var(--tu-study-ink);
    font-family: Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: clamp(0.88rem, 2vw, 1rem);
    font-weight: 700;
    overflow-wrap: anywhere;
}

.tu-study-cta {
    background: var(--tu-study-navy);
    color: rgba(255, 255, 255, 0.82);
    padding: clamp(42px, 6vw, 72px) 0;
}

.tu-study-cta h2 {
    color: #fff;
}

.tu-study-cta p {
    color: rgba(255, 255, 255, 0.78);
}

.tu-study-cta__actions {
    justify-content: flex-end;
    margin-top: 0;
}

.tu-study-link {
    color: #fff;
}

.tu-study-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: #0f1c2b;
    color: rgba(255, 255, 255, 0.68);
    padding: 22px 0;
}

.tu-study-footer__inner {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 24px;
    align-items: center;
    justify-content: space-between;
}

.tu-study-footer__inner > span {
    font-size: 0.92rem;
}

.tu-study-footer__nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    align-items: center;
}

.tu-study-footer__link {
    appearance: none;
    border: 0;
    background: transparent;
    color: rgba(255, 255, 255, 0.82);
    cursor: pointer;
    font: inherit;
    font-size: 0.92rem;
    padding: 0;
    text-align: left;
    text-decoration: underline;
    text-decoration-color: rgba(201, 162, 79, 0.5);
    text-underline-offset: 4px;
}

.tu-study-footer__link:hover {
    color: #fff;
    text-decoration-color: var(--tu-study-gold);
}

.tu-back-to-top {
    align-items: center;
    background: var(--tu-study-gold);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    bottom: 22px;
    box-shadow: 0 14px 34px rgba(8, 39, 68, 0.22);
    color: #111;
    cursor: pointer;
    display: inline-flex;
    height: 46px;
    justify-content: center;
    position: fixed;
    right: 22px;
    transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    width: 46px;
    z-index: 999;
}

.tu-back-to-top[hidden] {
    display: none;
}

.tu-back-to-top:hover,
.tu-back-to-top:focus-visible {
    background: #d7b25d;
    box-shadow: 0 18px 40px rgba(8, 39, 68, 0.28);
    transform: translateY(-2px);
}

.tu-back-to-top:focus-visible {
    outline: 3px solid rgba(201, 162, 79, 0.35);
    outline-offset: 4px;
}

.tu-back-to-top svg {
    fill: currentColor;
    height: 22px;
    width: 22px;
}

@media (max-width: 900px) {
    .tu-study-hero__grid,
    .tu-study-intro,
    .tu-study-cta__inner,
    .tu-study-tracks {
        grid-template-columns: 1fr;
    }

    .tu-study-cta__actions {
        justify-content: flex-start;
    }

    .tu-study-footer__inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .tu-study-support__box {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .tu-study-container {
        width: min(100% - 28px, 1180px);
    }

    .tu-study-brand {
        margin-bottom: 26px;
    }

    .tu-study-brand img {
        width: 48px;
        height: 48px;
    }

    .tu-study-actions,
    .tu-study-cta__actions {
        align-items: stretch;
        flex-direction: column;
    }

    .tu-study-button,
    .tu-study-link {
        width: 100%;
    }

    .tu-study-track,
    .tu-study-notice,
    .tu-study-order {
        padding: 20px;
    }

    .tu-enrol-form__grid {
        grid-template-columns: 1fr;
    }

    .tu-course-modal {
        align-items: end;
        padding: 12px;
    }

    .tu-course-modal__panel {
        max-height: 88vh;
        padding: 24px 20px;
    }

    .tu-study-footer__nav {
        align-items: flex-start;
        flex-direction: column;
    }

    .tu-back-to-top {
        bottom: 18px;
        height: 42px;
        right: 18px;
        width: 42px;
    }
}