/* Think xD - Development Foundation CSS */

:root {
    --bg: #071a24;
    --bg2: #0c3037;
    --gold: #d7b66a;
    --cream: #f7f0df;
    --muted: #9fb6bd;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    color: var(--cream);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 20% 15%, rgba(215,182,106,.18), transparent 28%),
        radial-gradient(circle at 80% 30%, rgba(20,120,126,.22), transparent 34%),
        linear-gradient(135deg, var(--bg), var(--bg2));
}

.wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 32px;
}

.card {
    width: min(100%, 980px);
    padding: 42px;
    border: 1px solid rgba(215,182,106,.28);
    border-radius: 28px;
    background: rgba(255,255,255,.055);
    box-shadow: 0 24px 80px rgba(0,0,0,.24);
}

.kicker {
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: .18em;
    font-weight: 800;
    font-size: .78rem;
}

h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    margin: 0 0 12px;
    letter-spacing: -.06em;
}

h2 {
    margin-top: 34px;
    color: var(--gold);
}

.lead {
    color: var(--muted);
    font-size: 1.2rem;
    line-height: 1.6;
}

.grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
}

.dim {
    border: 1px solid rgba(215,182,106,.22);
    border-radius: 18px;
    padding: 18px;
    background: rgba(255,255,255,.05);
}

.dim strong {
    color: var(--gold);
    font-size: 1.5rem;
    display: block;
}

.dim span {
    display: block;
    font-weight: 750;
    margin-top: 4px;
}

.dim small {
    color: var(--muted);
}

@media (max-width: 800px) {
    .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card { padding: 26px; }
}

@media (max-width: 480px) {
    .grid { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------
   Phase 6.14M.3F.1
   Grouped top navigation
------------------------------------------------------------ */

.txd-top-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px 12px;
}

.txd-nav-link,
.txd-nav-group__button {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 7px 9px;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    border-radius: 10px;
}

.txd-nav-link:hover,
.txd-nav-link:focus,
.txd-nav-group__button:hover,
.txd-nav-group:focus-within .txd-nav-group__button,
.txd-nav-link.is-active {
    background: rgba(255, 255, 255, .08);
}

.txd-nav-group {
    position: relative;
}

.txd-nav-group__menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 50;
    min-width: 230px;
    display: none;
    padding: 8px;
    border-radius: 16px;
    border: 1px solid rgba(255, 218, 120, .16);
    background: #07161b;
    box-shadow: 0 18px 42px rgba(0, 0, 0, .34);
}

.txd-nav-group:hover .txd-nav-group__menu,
.txd-nav-group:focus-within .txd-nav-group__menu {
    display: grid;
    gap: 3px;
}

.txd-nav-group__menu .txd-nav-link {
    justify-content: flex-start;
    width: 100%;
    white-space: nowrap;
}

@media (max-width: 900px) {
    .topbar {
        align-items: flex-start;
    }

    .txd-top-nav {
        width: 100%;
        gap: 6px;
    }

    .txd-nav-group {
        position: static;
    }

    .txd-nav-group__menu {
        position: static;
        width: 100%;
        min-width: 0;
        margin-top: 4px;
        box-shadow: none;
    }
}

/* ------------------------------------------------------------
   Phase 6.14M.3F.2
   Stable grouped navigation + mobile menu
------------------------------------------------------------ */

.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
}

.txd-top-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px 10px;
}

.txd-nav-toggle {
    display: none;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    padding: 8px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255, 218, 120, .18);
    background: rgba(255, 255, 255, .06);
    color: inherit;
    font: inherit;
    font-weight: 900;
    cursor: pointer;
}

.txd-nav-toggle strong {
    font-size: 1.1rem;
    line-height: 1;
}

.txd-nav-link,
.txd-nav-group__button {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 7px 9px;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    /*font-weight: 800;*/
    text-decoration: none;
    cursor: pointer;
    border-radius: 10px;
}

.txd-nav-group__button {
    gap: 6px;
}

.txd-nav-group__chevron {
    font-size: .8em;
    opacity: .76;
    transition: transform .16s ease;
}

.txd-nav-group.is-open .txd-nav-group__chevron {
    transform: rotate(180deg);
}

.txd-nav-link:hover,
.txd-nav-link:focus,
.txd-nav-group__button:hover,
.txd-nav-group__button:focus,
.txd-nav-group.is-open .txd-nav-group__button,
.txd-nav-link.is-active {
    background: rgba(255, 255, 255, .08);
}

.txd-nav-group {
    position: relative;
}

.txd-nav-group__menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 200;
    min-width: 240px;
    display: none;
    padding: 8px;
    border-radius: 16px;
    border: 1px solid rgba(255, 218, 120, .16);
    background: #07161b;
    box-shadow: 0 18px 42px rgba(0, 0, 0, .34);
}

.txd-nav-group.is-open .txd-nav-group__menu {
    display: grid;
    gap: 3px;
}

.txd-nav-group__menu::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -10px;
    height: 10px;
}

.txd-nav-group__menu .txd-nav-link {
    justify-content: flex-start;
    width: 100%;
    white-space: nowrap;
}

/* Tablet / mobile */
@media (max-width: 980px) {
    .topbar {
        display: grid;
        grid-template-columns: auto auto;
        align-items: center;
        gap: 8px 12px;
    }

    .topbar-brand {
        grid-column: 1;
    }

    .txd-nav-toggle {
        display: inline-flex;
        grid-column: 2;
        justify-self: end;
    }

    .txd-top-nav {
        grid-column: 1 / -1;
        display: none;
        width: 100%;
        padding-top: 8px;
        border-top: 1px solid rgba(255, 255, 255, .08);
    }

    .txd-top-nav.is-open {
        display: grid;
        gap: 8px;
    }

    .txd-nav-link,
    .txd-nav-group__button {
        width: 100%;
        justify-content: space-between;
        min-height: 42px;
        padding: 10px 12px;
        border-radius: 12px;
        background: rgba(255, 255, 255, .04);
    }

    .txd-nav-group {
        position: static;
        width: 100%;
    }

    .txd-nav-group__menu {
        position: static;
        width: 100%;
        min-width: 0;
        margin-top: 6px;
        padding: 6px;
        border-radius: 14px;
        box-shadow: none;
        background: rgba(0, 0, 0, .18);
    }

    .txd-nav-group.is-open .txd-nav-group__menu {
        display: grid;
        gap: 5px;
    }

    .txd-nav-group__menu::before {
        display: none;
    }

    .txd-nav-group__menu .txd-nav-link {
        padding-left: 18px;
        white-space: normal;
    }
}

/* Very small screens */
@media (max-width: 520px) {
    .topbar {
        padding-inline: 12px;
    }

    .topbar-brand {
        font-size: 1.05rem;
    }

    .txd-nav-toggle span {
        display: none;
    }

    .txd-nav-toggle {
        min-width: 42px;
        justify-content: center;
    }
}

.txd-nav-link {
    /* font-size: 1.2rem !important; */
    font-weight: 400 !important;
}

.txd-nav-tree {
    min-width: 270px;
}

.txd-nav-tree__root {
    padding: 8px;
    border-radius: 14px;
    border: 1px solid rgba(255, 218, 120, .24);
    background: rgba(255, 218, 120, .08);
}

.txd-nav-tree__root .txd-nav-link {
    font-weight: 950;
    color: #e8c66a;
}

.txd-nav-tree__branches {
    position: relative;
    display: grid;
    gap: 4px;
    margin-top: 10px;
    padding: 10px 8px 8px 22px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, .08);
    background: rgba(255, 255, 255, .035);
}

.txd-nav-tree__branches::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 22px;
    width: 2px;
    height: calc(100% + 4px);
    background: rgba(255, 218, 120, .28);
}

.txd-nav-tree__branches .txd-nav-link {
    position: relative;
    padding-left: 16px;
}

.txd-nav-tree__branches .txd-nav-link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 10px;
    height: 2px;
    background: rgba(255, 218, 120, .35);
}