:root {
    --coresnap-blue: #2f80ed;
    --coresnap-blue-strong: #256ed4;
    --coresnap-blue-soft: #d8e9ff;
    --coresnap-navy: #0d1b3e;
    --coresnap-navy-soft: #162852;
    --coresnap-ink: #0f1a33;
    --coresnap-muted: #5e6b85;
    --coresnap-line: #d8e1ef;
    --coresnap-surface: #ffffff;
    --coresnap-bg: #f4f7fb;
    --coresnap-error-soft: rgba(211, 47, 47, 0.12);
    --coresnap-error-strong: rgba(211, 47, 47, 0.22);
}

html,
body {
    background:
        radial-gradient(circle at top right, rgba(47, 128, 237, 0.12), transparent 28rem),
        linear-gradient(180deg, #fbfdff 0%, var(--coresnap-bg) 100%);
    color: var(--coresnap-ink);
}

.public-shell {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(47, 128, 237, 0.16), transparent 20rem),
        linear-gradient(180deg, #fbfdff 0%, var(--coresnap-bg) 100%);
}

.public-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.login-card {
    width: 100%;
    max-width: 440px;
    padding: 2rem;
    border: 1px solid rgba(216, 225, 239, 0.9);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 24px 60px rgba(13, 27, 62, 0.12);
    backdrop-filter: blur(10px);
}

.page-hero::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--coresnap-blue), #7ab6ff);
}

.login-brand {
    margin-bottom: 1.5rem;
    text-align: center;
}

.login-logo {
    width: 100%;
    max-width: 260px;
    height: auto;
}

.login-title {
    color: var(--coresnap-ink);
}

.login-subtitle {
    max-width: 28ch;
}

.app-shell {
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, rgba(47, 128, 237, 0.1), transparent 24rem),
        linear-gradient(180deg, #f8fbff 0%, var(--coresnap-bg) 100%);
}

.app-topbar {
    background: linear-gradient(135deg, var(--coresnap-navy) 0%, var(--coresnap-navy-soft) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}

.brand-mark-wrap {
    width: 2.6rem;
    height: 2.6rem;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
}

.brand-mark {
    height: 2rem;
    width: auto;
    display: block;
}

.brand-title {
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.topbar-user {
    color: rgba(248, 251, 255, 0.84);
}

.app-drawer {
    border-right: 1px solid var(--coresnap-line);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(244, 247, 251, 0.92) 100%);
}

.app-nav {
    padding: 1rem 0.75rem;
}

.app-nav .mud-nav-link {
    margin-bottom: 0.35rem;
    border-radius: 14px;
}

.app-content {
    padding-top: 6rem;
    padding-bottom: 2rem;
}

.page-hero {
    position: relative;
    padding: 1.5rem 1.75rem;
    border: 1px solid rgba(216, 225, 239, 0.9);
    border-radius: 28px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(244, 247, 251, 0.94) 100%);
    box-shadow: 0 16px 40px rgba(13, 27, 62, 0.08);
    overflow: hidden;
}

.page-eyebrow {
    color: var(--coresnap-blue);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.page-title {
    color: var(--coresnap-ink);
    margin-bottom: 0.25rem;
}

.page-subtitle {
    max-width: 54ch;
    color: var(--coresnap-muted);
}

.page-meta {
    display: inline-block;
    margin-top: 0.75rem;
    color: var(--coresnap-muted);
}

.hero-action {
    white-space: nowrap;
}

.panel-card {
    border: 1px solid rgba(216, 225, 239, 0.9);
    border-radius: 24px;
    box-shadow: 0 16px 36px rgba(13, 27, 62, 0.06);
    background: rgba(255, 255, 255, 0.96);
}

.table-shell {
    overflow: hidden;
}

.config-item {
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(248, 251, 255, 0.95) 0%, rgba(255, 255, 255, 1) 100%);
}

.sound-upload-grid {
    display: grid;
    grid-template-columns: minmax(14rem, 1.4fr) auto auto;
    gap: 1rem;
    align-items: center;
}

.sound-hash {
    max-width: 16rem;
    word-break: break-all;
    color: var(--coresnap-muted);
}

.mud-paper {
    border: 1px solid rgba(216, 225, 239, 0.72);
}

.mud-button-filled.mud-button-filled-primary {
    box-shadow: 0 14px 30px rgba(47, 128, 237, 0.22);
}

.mud-input-control > .mud-input-control-input-container > .mud-input-label-inputcontrol {
    color: var(--coresnap-muted);
}

.mud-input-control.mud-input-error .mud-input-outlined-border {
    border-color: var(--mud-palette-error) !important;
    border-width: 2px;
    box-shadow: 0 0 0 4px var(--coresnap-error-soft);
}

.mud-input-control.mud-input-error .mud-input-slot.mud-input-root-filled,
.mud-input-control.mud-input-error .mud-input-slot.mud-input-root {
    background-color: rgba(211, 47, 47, 0.03);
}

.mud-input-control.mud-input-error .mud-input-label-inputcontrol,
.mud-input-control.mud-input-error .mud-input-adornment,
.mud-input-control.mud-input-error .mud-select-input,
.mud-input-control.mud-input-error .mud-input-helper-text {
    color: var(--mud-palette-error) !important;
}

.mud-input-control.mud-input-error .mud-input-helper-text {
    font-weight: 600;
}

.mud-input-control.mud-input-error:not(.mud-disabled) .mud-input-outlined-border:hover,
.mud-input-control.mud-input-error.mud-input-control-margin-dense .mud-input-outlined-border:hover,
.mud-input-control.mud-input-error:focus-within .mud-input-outlined-border {
    border-color: var(--mud-palette-error) !important;
    box-shadow: 0 0 0 4px var(--coresnap-error-strong);
}

.mud-table {
    background: transparent;
}

.mud-table-head .mud-table-cell {
    color: var(--coresnap-muted);
    font-weight: 700;
    background: rgba(244, 247, 251, 0.85);
}

.mud-table-row .mud-table-cell {
    border-bottom-color: rgba(216, 225, 239, 0.72);
}

.mud-nav-link.active:not(.mud-nav-link-disabled) {
    background: linear-gradient(90deg, rgba(47, 128, 237, 0.14), rgba(47, 128, 237, 0.04));
    color: var(--coresnap-blue-strong);
}

@media (max-width: 959.98px) {
    .app-content {
        padding-top: 5.5rem;
    }

    .login-card {
        padding: 1.5rem;
        border-radius: 24px;
    }

    .public-container {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }

    .page-hero {
        padding: 1.25rem;
    }

    .brand-mark-wrap {
        width: 2.2rem;
        height: 2.2rem;
    }

    .sound-upload-grid {
        grid-template-columns: 1fr;
        align-items: stretch;
    }
}