.shell {
    width: min(100vw, 1680px);
    margin: 0 auto;
    padding: 16px;
    min-height: 100vh;
}

.workspace {
    display: grid;
    grid-template-columns: 290px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(199, 214, 230, 0.95);
    border-radius: 28px;
    backdrop-filter: blur(10px);
    box-shadow: 0 18px 40px var(--shadow);
    position: sticky;
    top: 16px;
}

.nav-links {
    display: grid;
    gap: 8px;
    align-content: start;
    overflow: auto;
}

.nav-user {
    display: grid;
    gap: 10px;
    margin-top: auto;
}

.brand-lockup {
    display: grid;
    gap: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
}

.brand-lockup img {
    width: 100%;
    max-width: 170px;
    height: auto;
    display: block;
    border-radius: 14px;
}

.brand-copy {
    display: grid;
    gap: 4px;
}

.brand-copy strong {
    font-size: 1.1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav a {
    padding: 11px 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--brand);
    transition: transform 140ms ease, background 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
    font-size: 0.95rem;
    font-weight: 600;
}

.nav a:hover {
    transform: translateY(-1px);
    background: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 10px 18px rgba(17, 57, 109, 0.08);
}

.nav form {
    display: block;
}

.nav button {
    width: 100%;
    padding: 10px 14px;
    border-radius: 14px;
}

.content-area {
    display: grid;
    grid-template-rows: auto;
    gap: 14px;
    min-width: 0;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(200px, 0.55fr);
    gap: 18px;
    padding: 20px 22px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.97), rgba(236, 245, 253, 0.98)),
        linear-gradient(135deg, var(--brand), var(--accent));
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: 0 18px 40px var(--shadow);
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    right: -90px;
    top: -70px;
    width: 240px;
    height: 240px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(22, 112, 184, 0.20) 0%, rgba(22, 112, 184, 0) 68%);
}

.hero-copy,
.hero-brand {
    position: relative;
    z-index: 1;
}

.hero h1 {
    margin: 0 0 6px;
    font-size: 1.8rem;
    line-height: 1.1;
}

.hero p {
    margin: 0;
    color: var(--muted);
    max-width: 860px;
    font-size: 0.95rem;
}

.hero-brand {
    display: grid;
    align-content: center;
    justify-items: end;
    gap: 10px;
}

.hero-brand img {
    width: min(100%, 220px);
    height: auto;
    border-radius: 20px;
    filter: drop-shadow(0 14px 22px rgba(22, 112, 184, 0.16));
}

.page-scroll {
    overflow: visible;
}

.page {
    display: grid;
    gap: 14px;
}

.page-grid {
    display: grid;
    grid-template-columns: minmax(300px, 400px) minmax(0, 1fr);
    gap: 14px;
    align-items: start;
}

.sidebar-stack,
.content-stack {
    display: grid;
    gap: 14px;
    min-width: 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 14px;
    align-items: start;
}

@media (max-width: 1100px) {
    .shell {
        min-height: 100vh;
    }

    .workspace {
        grid-template-columns: 1fr;
    }

    .nav {
        position: static;
    }

    .content-area {
        grid-template-rows: auto;
    }

    .page-scroll {
        overflow: visible;
        padding-right: 0;
    }

    .page-grid {
        grid-template-columns: 1fr;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 860px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .hero-brand {
        justify-items: start;
    }
}