.overview-hero {
    position: relative;
    overflow: hidden;
    margin-bottom: 1.5rem;
    padding: clamp(1.5rem, 4vw, 3rem);
    border-radius: var(--radius-lg);
    background: var(--bg-sidebar);
    color: var(--text-on-dark);
    box-shadow: var(--elev-2, none);
}
.overview-hero::after {
    content: "";
    position: absolute;
    right: -6rem;
    top: -6rem;
    width: 22rem;
    height: 22rem;
    border: 1px solid color-mix(in srgb, var(--nav-accent) 35%, transparent);
    border-radius: 50%;
    box-shadow: 0 0 0 3rem color-mix(in srgb, var(--nav-accent) 6%, transparent);
    pointer-events: none;
}
.overview-hero .eyebrow { color: var(--nav-accent); }
.overview-hero h1 { position: relative; z-index: 1; margin: 0 0 0.6rem; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.1; letter-spacing: -0.02em; }
.overview-hero .home-intro { position: relative; z-index: 1; margin: 0; color: color-mix(in srgb, var(--text-on-dark) 78%, transparent); }
.home-intro { max-width: 46rem; font-size: 1.08rem; line-height: 1.55; }
.empty-state {
    display: grid;
    justify-items: center;
    gap: 0.4rem;
    padding: clamp(2.5rem, 6vw, 4.5rem) 1.5rem;
    border: 1px dashed var(--border-strong, var(--border));
    border-radius: var(--radius-lg);
    background: var(--surface);
    text-align: center;
}
.empty-state-mark { margin-bottom: 0.6rem; color: var(--primary); opacity: 0.55; }
.empty-state h2 { margin: 0; color: var(--heading, var(--primary)); font-size: 1.2rem; }
.empty-state p { max-width: 32rem; margin: 0; color: var(--muted); }
.login-options { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.login-option { display: inline-flex; align-items: center; min-height: 2.7rem; padding: 0.55rem 1rem; border: 1px solid var(--border-strong, var(--input-border)); border-radius: var(--radius); background: var(--surface); color: var(--text); font-weight: 600; }
.login-option:hover { background: var(--hover); text-decoration: none; }

.auth-button { display: inline-flex; align-items: center; margin-left: auto; min-height: 2.3rem; padding: 0.4rem 1.1rem; border: 1px solid var(--border-strong, var(--input-border)); border-radius: 999px; background: var(--surface); color: var(--text); font-size: 0.86rem; font-weight: 700; text-decoration: none; }
.auth-button:hover { background: var(--hover); text-decoration: none; }
.auth-button-primary { border-color: var(--bg-sidebar); background: var(--bg-sidebar); color: var(--text-on-dark); }
.auth-button-primary:hover { background: color-mix(in srgb, var(--bg-sidebar) 85%, var(--nav-accent)); color: var(--text-on-dark); }

.nav-section { margin: 1.1rem 0 0.25rem; padding: 0 0.65rem; color: color-mix(in srgb, var(--text-on-dark) 50%, transparent); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
.side-nav > .nav-item:not(.nav-section-link) { padding-left: 1.1rem; }
.side-nav > .nav-section-link { margin-top: 0.4rem; padding-left: 0.65rem; font-weight: 600; }

.menu-boxes { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); gap: 1rem; }
.menu-box { position: relative; display: grid; align-content: start; gap: 0.45rem; min-height: 11rem; padding: 1.4rem 1.4rem 2.6rem; border: 1px solid var(--border); border-top: 4px solid var(--nav-accent); border-radius: var(--radius-lg); background: var(--surface); color: var(--text); text-decoration: none; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.menu-box:hover { transform: translateY(-3px); box-shadow: var(--elev-2, 0 12px 28px rgb(0 0 0 / 12%)); text-decoration: none; color: var(--text); }
.menu-group { margin-top: 2rem; scroll-margin-top: 1rem; }
.menu-group-title { margin: 0 0 0.9rem; color: var(--muted); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
.menu-box h3 { margin: 0; color: var(--heading, var(--primary)); font-size: 1.15rem; line-height: 1.25; }
.menu-box p { margin: 0; color: var(--muted); line-height: 1.5; }
.menu-box-go { position: absolute; right: 1.2rem; bottom: 0.9rem; color: var(--primary); font-size: 1.2rem; font-weight: 700; }

.app-content:has(> .frame-view) { width: 100%; max-width: none; }
.frame-view { display: flex; flex-direction: column; height: calc(100dvh - 3.5rem); }
/* Embedded pages take the header's space too; on mobile the header keeps the menu button. */
@media (min-width: 761px) {
    .app-body:has(.frame-view) > .app-header { display: none; }
    .frame-view { height: 100dvh; }
}

.nav-collapse-btn { align-self: flex-end; margin-top: auto; width: 2rem; height: 2rem; border: 1px solid color-mix(in srgb, var(--nav-accent) 40%, transparent); border-radius: var(--radius); background: transparent; color: var(--nav-accent); font-size: 1.1rem; font-weight: 700; line-height: 1; }
.nav-collapse-btn:hover { background: color-mix(in srgb, var(--nav-accent) 14%, transparent); }
@media (min-width: 761px) {
    .app-shell.nav-collapsed { grid-template-columns: 3.4rem minmax(0, 1fr); }
    .nav-collapsed .app-sidebar { padding-inline: 0.5rem; }
    .nav-collapsed .brand-text, .nav-collapsed .side-nav { display: none; }
    .nav-collapsed .nav-collapse-btn { align-self: center; }
}
@media (max-width: 760px) {
    .nav-collapse-btn { display: none; }
}
.frame-bar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 0.55rem clamp(1rem, 2vw, 2rem); border-bottom: 1px solid var(--border); background: var(--surface); }
.frame-bar h1 { margin: 0; color: var(--heading, var(--primary)); font-size: 1rem; }
.frame-bar a { color: var(--muted); font-size: 0.82rem; font-weight: 600; white-space: nowrap; }
.frame-view iframe { flex: 1 1 auto; width: 100%; border: 0; background: #fff; }

.landing { display: grid; gap: clamp(2rem, 5vw, 3.5rem); padding: clamp(1.5rem, 4vw, 3.5rem) clamp(1rem, 3vw, 3rem) 4rem; }
.landing .error-message { margin: 0; }
.landing-hero { max-width: 52rem; }
.landing-kicker { margin: 0 0 1rem; color: var(--eyebrow, var(--muted)); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.landing-hero h1 { margin: 0 0 1.2rem; color: var(--heading, var(--primary)); font-size: clamp(2.2rem, 5.2vw, 4.2rem); line-height: 1.04; letter-spacing: -0.03em; }
.landing-lead { max-width: 42rem; margin: 0; color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.25rem); line-height: 1.6; }
.landing-photo { position: relative; margin: 0; overflow: hidden; border-radius: var(--radius-lg); background: var(--bg-sidebar); box-shadow: var(--elev-2, 0 18px 40px rgb(0 0 0 / 18%)); }
.landing-photo img { display: block; width: 100%; height: clamp(280px, 52vw, 620px); object-fit: cover; object-position: center 35%; }
.landing-photo figcaption { position: absolute; inset: auto 0 0 0; padding: 3rem clamp(1rem, 3vw, 2rem) 1.2rem; background: linear-gradient(transparent, rgb(0 0 0 / 70%)); color: #fff; font-size: 0.95rem; font-weight: 500; }
.landing-sections h2 { margin: 0 0 1.25rem; color: var(--heading, var(--primary)); font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: -0.02em; }
.landing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 1rem; }
.landing-card { display: grid; align-content: start; gap: 0.55rem; padding: 1.5rem; border: 1px solid var(--border); border-top: 4px solid var(--nav-accent); border-radius: var(--radius-lg); background: var(--surface); }
.landing-number { color: var(--primary); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; opacity: 0.7; }
.landing-card h3 { margin: 0; color: var(--heading, var(--primary)); font-size: 1.15rem; line-height: 1.25; }
.landing-card p { margin: 0; color: var(--muted); line-height: 1.55; }
.landing-note { max-width: 46rem; margin: 0; padding: 1.25rem 1.5rem; border-radius: var(--radius-lg); background: var(--bg-sidebar); color: var(--text-on-dark); line-height: 1.55; }
.management-section { margin-top: 2rem; }
.management-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); gap: 0.8rem; align-items: end; padding: 1rem; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
.management-form label { display: grid; gap: 0.35rem; color: var(--muted); font-size: 0.78rem; font-weight: 700; }
.management-form input, .management-form select { width: 100%; min-height: 2.5rem; padding: 0.4rem 0.6rem; border: 1px solid var(--input-border); border-radius: var(--radius); background: var(--surface); color: var(--text); }
.management-form button { min-height: 2.5rem; padding: 0.45rem 0.8rem; border: 1px solid var(--border-strong, var(--input-border)); border-radius: var(--radius); background: var(--primary); color: var(--on-primary); font-weight: 700; }
.management-list { display: grid; gap: 0.75rem; }
.management-row { padding: 1rem; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
.management-row summary { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; cursor: pointer; font-weight: 600; }
.management-row summary span { color: var(--muted); font-weight: 400; }
.management-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.management-actions button { min-height: 2.3rem; padding: 0.35rem 0.7rem; border: 1px solid var(--border-strong, var(--input-border)); border-radius: var(--radius); background: var(--surface); color: var(--text); font-weight: 600; }