:root {
    --font-size-base: 16px;
    --font-size-muted: 14px;
    --font-size-key: 0.75rem;
    --font-size-radio: 0.95rem;
    --font-size-file-name: 0.9rem;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-input: 8px;
    --radius-list: 10px;
    --radius-alert: 10px;
    --radius-badge: 8px;
    --radius-setting-row: 0.75rem;
    --radius-radio: 0.7rem;
    --radius-file-item: 12px;
    --padding-card-body: 20px;
    --padding-setting-row-y: 0.875rem;
    --padding-setting-row-x: 1rem;
    --padding-radio-y: 0.5rem;
    --padding-radio-x: 0.9rem;
    --padding-file-item-y: 14px;
    --padding-file-item-x: 16px;
    --gap-settings: 1rem;
    --gap-settings-list: 0.875rem;
    --gap-radio: 0.5rem;
    --gap-file-list: 0.75rem;
    --gap-file-content: 0.6rem;
    --qr-max-width: 220px;
    --radio-min-width: 72px;
    --file-item-max-width: 720px;
}

html {
    font-size: var(--font-size-base);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.navbar-brand {
    letter-spacing: 0.5px;
}

.navbar-user-chip {
    align-items: center;
    display: inline-flex;
    gap: 0.45rem;
    min-width: 0;
}

.navbar-user-chip__name {
    max-width: 11rem;
    opacity: 0.75;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.navbar-user-avatar {
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 50%;
    flex: 0 0 auto;
    height: 30px;
    object-fit: cover;
    width: 30px;
}

.navbar-user-avatar--fallback {
    align-items: center;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.82);
    display: inline-flex;
    font-size: 0.78rem;
    font-weight: 700;
    justify-content: center;
    text-transform: uppercase;
}

.card {
    border: none;
    border-radius: var(--radius-card);
}

.card-body {
    padding: var(--padding-card-body);
}

.btn {
    border-radius: var(--radius-btn);
    font-weight: 500;
}

.form-control {
    border-radius: var(--radius-input);
}

.list-group-item {
    border-radius: var(--radius-list) !important;
    margin-bottom: 8px;
    transition: all 0.15s ease;
}

    .list-group-item:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

.text-muted {
    font-size: var(--font-size-muted);
}

.alert {
    border-radius: var(--radius-alert);
}

.badge {
    border-radius: var(--radius-badge);
    font-weight: 500;
}

.card h2.h5 {
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    :root {
        --font-size-base: 12px;
        --font-size-muted: 11px;
        --font-size-key: 0.65rem;
        --font-size-radio: 0.8rem;
        --font-size-file-name: 0.8rem;
        --padding-card-body: 12px;
        --padding-setting-row-y: 0.6rem;
        --padding-setting-row-x: 0.7rem;
        --padding-radio-y: 0.4rem;
        --padding-radio-x: 0.6rem;
        --padding-file-item-y: 12px;
        --padding-file-item-x: 14px;
        --gap-settings: 0.6rem;
        --gap-settings-list: 0.6rem;
        --gap-file-list: 0.65rem;
        --gap-file-content: 0.5rem;
        --qr-max-width: 140px;
        --radio-min-width: 55px;
        --radius-card: 9px;
        --radius-btn: 6px;
        --radius-input: 6px;
        --radius-list: 7px;
        --radius-alert: 7px;
        --radius-badge: 6px;
        --radius-file-item: 10px;
    }

    html {
        font-size: 12px !important;
    }

    body {
        font-size: 12px !important;
    }

    h1, .h1 {
        font-size: 1.2rem !important;
    }

    h2, .h2 {
        font-size: 1.1rem !important;
    }

    h3, .h3 {
        font-size: 1rem !important;
    }

    h4, .h4 {
        font-size: 0.95rem !important;
    }

    h5, .h5 {
        font-size: 0.9rem !important;
    }

    .btn {
        font-size: 0.8rem !important;
        padding: 0.35rem 0.6rem !important;
    }

    .form-control {
        font-size: 0.8rem !important;
    }

    .text-muted,
    small,
    .small {
        font-size: 0.7rem !important;
    }

    .badge {
        font-size: 0.65rem !important;
    }

    .nav-link {
        font-size: 0.8rem !important;
    }
}

@media (max-width: 767.98px) {
    .session-page .session-hero-card .card-body,
    .session-page .card.shadow-sm > .card-body {
        padding: 0.95rem;
    }

    .session-page .session-panel,
    .session-page .session-stat-card,
    .session-page .session-participant-card,
    .session-page .session-hero-card__meta-item {
        padding: 0.85rem;
    }

    .session-page .session-section-stack,
    .session-page .session-hero-card__meta {
        gap: 0.7rem;
    }

    .session-page .session-stat-grid,
    .session-page .session-chip-list {
        gap: 0.55rem;
    }

    .session-page .session-hero-card__eyebrow,
    .session-page .session-chip,
    .session-page .session-live-indicator {
        font-size: 0.72rem;
    }

    .session-page .session-chip {
        padding: 0.45rem 0.7rem;
    }

    .session-page .session-panel__badge {
        min-width: 2rem;
        padding: 0.35rem 0.6rem;
    }

    .session-page .session-participant-card__avatar {
        width: 2.3rem;
        height: 2.3rem;
    }
}

@media (max-width: 575.98px) {
    main.container {
        margin-top: 0.85rem !important;
        margin-bottom: 0.85rem !important;
    }

    .container {
        padding-inline: 0.75rem;
    }

    .navbar .container {
        gap: 0.45rem;
    }

    .navbar-brand {
        font-size: 0.95rem;
    }

    .navbar-user-chip__name {
        max-width: 7rem;
    }

    .navbar-user-avatar {
        height: 26px;
        width: 26px;
    }

    .navbar .d-flex.align-items-center.gap-3.ms-auto {
        gap: 0.45rem !important;
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .list-group-item {
        margin-bottom: 6px;
    }

    #home-page-root .row.g-4,
    .session-page.row.g-4 {
        --bs-gutter-x: 0.8rem;
        --bs-gutter-y: 0.8rem;
    }

    #home-page-root hr {
        margin: 0.75rem 0;
    }

    #home-page-root .card > .card-body,
    #home-page-root .list-group-item,
    #home-page-root .collapse .card-body,
    .session-page .session-hero-card .card-body,
    .session-page .card.shadow-sm > .card-body,
    .session-page .session-panel,
    .session-page .session-stat-card,
    .session-page .session-participant-card,
    .session-page .session-hero-card__meta-item {
        padding: 0.8rem;
    }

    .session-page .tab-content {
        min-height: 0;
    }

    .session-page .session-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 0.35rem;
        margin-bottom: 0.75rem !important;
        padding-bottom: 0.2rem;
    }

    .session-page .session-tabs .nav-item {
        flex: 0 0 auto;
    }

    .session-page .session-tabs .nav-link {
        padding: 0.4rem 0.75rem;
        font-size: 0.75rem !important;
    }

    .session-page .session-hero-card__eyebrow,
    .session-page .session-chip,
    .session-page .session-live-indicator {
        padding: 0.3rem 0.6rem;
    }

    .session-page .session-chip-list,
    .session-page .session-panel__header,
    .session-page .session-file-item__top,
    .session-page .session-participant-card {
        gap: 0.65rem;
    }

    .session-page .session-panel__header {
        margin-bottom: 0.75rem;
    }

    .session-page .session-hero-card h1 {
        font-size: 1.05rem !important;
    }

    .session-page .session-panel__header .small {
        display: none;
    }

    .session-page .join-access-card__hint {
        min-height: 88px;
        padding: 0.75rem 0.85rem;
    }

    .session-page .participant-remove-form,
    .session-page .participant-remove-form .btn,
    .session-page .session-file-actions,
    .session-page .session-file-item__top .btn {
        width: 100%;
    }
}