body {
    min-height: 100vh;
    background:
        radial-gradient(circle at top, rgba(13, 110, 253, 0.18), transparent 32%),
        linear-gradient(180deg, #0a1630 0%, #10213f 48%, #132849 100%);
}

.app-shell {
    padding-bottom: 3rem;
}

.brand-logo {
    width: clamp(160px, 28vw, 300px);
    height: auto;
}

.nav-gap {
    gap: 0.5rem;
}

.hero-section {
    display: grid;
    gap: 1.25rem;
    justify-items: center;
    padding: 2rem 1.5rem;
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
}

.hero-logo {
    width: min(100%, 360px);
    height: auto;
}

.hero-copy {
    max-width: 42rem;
    margin: 0;
    line-height: 1.6;
}

.form-panel {
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.15);
}

.section-title {
    margin: 0;
}

.results-table-wrap {
    width: 100%;
    overflow-x: auto;
}

.time-range-group {
    align-items: center;
    gap: 0.75rem;
}

.time-separator {
    flex: 0 0 auto;
    font-weight: 600;
}

.input-group-text {
    white-space: nowrap;
}

.btn {
    min-width: 7rem;
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        padding-top: 1rem;
    }

    .navbar-nav {
        gap: 0.25rem;
    }
}

@media (max-width: 767.98px) {
    .app-shell {
        padding-bottom: 2rem;
    }

    .hero-section,
    .form-panel {
        padding: 1.25rem;
        border-radius: 1rem;
    }

    .input-group {
        flex-direction: column;
        align-items: stretch;
    }

    .input-group > .input-group-text,
    .input-group > .form-select,
    .input-group > .form-control,
    .input-group > .btn,
    .input-group > .dropdown-toggle {
        width: 100%;
        border-radius: 0.75rem;
    }

    .time-range-group {
        gap: 0.5rem;
    }

    .time-separator {
        align-self: center;
    }

    .btn {
        min-width: 100%;
    }

    .table {
        min-width: 36rem;
    }
}