:root {
    --app-bg: linear-gradient(180deg, #0a0f1e 0%, #10182a 48%, #0a0f1e 100%);
    --app-surface: rgba(17, 24, 39, 0.82);
    --app-surface-strong: rgba(10, 15, 30, 0.92);
    --app-border: rgba(255, 255, 255, 0.08);
    --app-border-accent: rgba(0, 188, 212, 0.32);
    --app-text: #e6f7fb;
    --app-muted: #90a4b8;
    --app-primary: #00bcd4;
    --app-primary-soft: rgba(0, 188, 212, 0.16);
    --app-accent: #ff4081;
    --app-success: #00e676;
}

body.app-page-body {
    min-height: 100vh;
    height: auto;
    overflow: auto;
    background:
        radial-gradient(circle at 15% 10%, rgba(0, 188, 212, 0.15), transparent 28%),
        radial-gradient(circle at 85% 18%, rgba(255, 64, 129, 0.12), transparent 22%),
        var(--app-bg);
    color: var(--app-text);
}

.app-topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    height: auto;
    min-height: 64px;
    padding: 12px 24px;
    background: rgba(10, 15, 30, 0.78);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--app-border-accent);
}

.app-topbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.app-topbar .nav-links {
    display: flex;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
}

.app-topbar .nav-link {
    color: var(--app-muted);
    text-decoration: none;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 999px;
    transition: color 0.2s, background 0.2s, transform 0.2s;
}

.app-topbar .nav-link:hover,
.app-topbar .nav-link.active {
    color: var(--app-text);
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-1px);
}

.app-shell {
    max-width: 1400px;
    margin: 0 auto;
    padding: 28px 24px 40px;
}

.app-hero {
    margin-bottom: 24px;
    padding: 28px;
    border-radius: 28px;
    background:
        linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02)),
        radial-gradient(circle at top right, rgba(0, 188, 212, 0.16), transparent 34%),
        var(--app-surface-strong);
    border: 1px solid var(--app-border);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.24);
}

.app-kicker {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid var(--app-border-accent);
    background: rgba(255, 255, 255, 0.04);
    color: var(--app-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
}

.app-hero h1 {
    margin: 0 0 10px;
    font-size: clamp(2rem, 3vw, 3.2rem);
    line-height: 1.05;
}

.app-hero p {
    margin: 0;
    max-width: 760px;
    color: var(--app-muted);
    line-height: 1.7;
}

.app-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 20px;
}

.app-grid-wide {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 20px;
}

.app-card,
.app-panel {
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 22px;
    padding: 22px;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.2);
}

.app-panel h2,
.app-card h2 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: 1.05rem;
    color: var(--app-primary);
}

.app-subtle {
    color: var(--app-muted);
}

.app-metric {
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    margin-bottom: 12px;
}

.app-metric-label {
    font-size: 0.8rem;
    color: var(--app-muted);
    margin-bottom: 6px;
}

.app-metric-value {
    font-size: 2rem;
    font-weight: 700;
}

.app-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.app-table th,
.app-table td {
    padding: 12px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    vertical-align: top;
}

.app-table th {
    color: var(--app-muted);
    font-weight: 600;
    text-align: left;
}

.app-table tr:hover td {
    background: rgba(255, 255, 255, 0.03);
}

.app-form-shell {
    margin-bottom: 22px;
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.app-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.app-form-grid label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.82rem;
    color: var(--app-muted);
}

.app-form-grid input,
.app-form-grid textarea,
.app-form-grid select,
.app-button {
    width: 100%;
    border-radius: 12px;
}

.app-button {
    border: 1px solid transparent;
    padding: 11px 16px;
    background: linear-gradient(135deg, var(--app-primary), #19d2e6);
    color: #03131a;
    font-weight: 700;
    cursor: pointer;
}

.app-button.secondary {
    background: transparent;
    color: var(--app-primary);
    border-color: var(--app-border-accent);
}

.app-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: rgba(255, 255, 255, 0.08);
}

.app-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.app-list-item {
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.app-empty {
    padding: 24px;
    text-align: center;
    color: var(--app-muted);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed rgba(255, 255, 255, 0.12);
}

.app-section-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 980px) {
    .app-grid,
    .app-grid-wide {
        grid-template-columns: 1fr;
    }

    .app-form-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .app-shell {
        padding: 20px 16px 32px;
    }

    .app-topbar {
        padding: 12px 16px;
    }
}