.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--app-canvas);
    color: var(--app-text-primary);
    transition: background 0.35s ease, color 0.35s ease;
}

.app-header {
    background: var(--app-surface);
    border-bottom: 1px solid var(--app-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 12px 32px rgba(18, 24, 18, 0.08);
}

.app-header__inner {
    max-width: var(--desktop);
    margin: 0 auto;
    padding: 1.15rem var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.app-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
    color: var(--app-accent-strong);
}

.app-logo img {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-lg);
    background-color: var(--honeydew);
    padding: 0.35rem;
}

.app-header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.app-user {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    font-size: 0.95rem;
}

.app-user__name {
    font-weight: 600;
    color: var(--app-text-primary);
}

.app-user__email {
    color: var(--app-text-muted);
    font-size: 0.85rem;
}

.theme-toggle {
    border: 1px solid var(--app-border);
    background: var(--app-surface-alt);
    color: var(--app-text-primary);
    border-radius: 999px;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    border-color: var(--app-accent);
    color: var(--app-accent-strong);
    outline: none;
}

.theme-toggle__icon {
    font-size: 1.2rem;
}

[data-theme="dark"] .theme-toggle__icon--light {
    opacity: 0.35;
}

[data-theme="light"] .theme-toggle__icon--dark {
    opacity: 0.35;
}

.app-main {
    flex: 1;
    max-width: var(--desktop);
    margin: 0 auto;
    padding: 3rem var(--spacing-sm) 4rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.app-hero {
    background: var(--app-surface);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--app-shadow);
    border: 1px solid var(--app-border);
}

.app-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 0.75rem;
}

.app-hero p {
    max-width: 640px;
    color: var(--app-text-muted);
    line-height: 1.7;
}

.app-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--spacing-sm);
}

.app-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.app-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.app-card,
.app-section {
    background: var(--app-surface);
    border-radius: var(--radius-xl);
    padding: 1.8rem;
    box-shadow: var(--app-shadow);
    border: 1px solid var(--app-border);
    transition: background 0.35s ease, color 0.35s ease, border-color 0.35s ease;
}

.app-card header,
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 1.35rem;
}

.section-header p {
    color: var(--app-text-muted);
    font-size: 0.95rem;
}

.profile-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.profile-card header {
    gap: 0.75rem;
}

.profile-card header h2 {
    margin-right: auto;
}

.profile-card .status-dot {
    margin-right: 0.2rem;
}

.profile-primary {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.profile-name {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--app-text-primary);
}

.profile-email {
    color: var(--app-text-muted);
    font-size: 0.95rem;
    word-break: break-word;
}

.role-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-radius: 999px;
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--app-surface-alt);
    color: var(--app-accent-strong);
    border: 1px solid var(--app-border);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.profile-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    color: var(--app-text-muted);
    font-size: 0.9rem;
}

.profile-meta dt {
    font-weight: 600;
    color: var(--app-text-secondary);
}

.support-card ul {
    list-style: none;
    display: grid;
    gap: 0.6rem;
    margin-top: 0.8rem;
    color: var(--app-text-primary);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-sm);
}

.metric-card {
    background: var(--app-surface-alt);
    border-radius: var(--radius-lg);
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border: 1px solid var(--app-border);
    box-shadow: inset 0 0 0 1px rgba(155, 179, 156, 0.08);
}

.metric-label {
    font-size: 0.9rem;
    color: var(--app-text-muted);
    font-weight: 600;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--app-text-primary);
}

.metric-helper {
    font-size: 0.85rem;
    color: var(--app-text-muted);
}

.app-card--inline {
    display: grid;
    gap: 0.9rem;
}

.app-card--inline strong {
    font-size: 1.05rem;
}

.upcoming-primary {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.upcoming-time {
    font-size: 0.95rem;
    color: var(--app-text-muted);
}

.upcoming-meta {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.5rem;
    font-size: 0.85rem;
}

.upcoming-meta span:first-child {
    color: var(--app-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    font-size: 0.75rem;
}

.upcoming-meta span:last-child {
    font-weight: 600;
    color: var(--app-text-primary);
}

.activity-feed {
    list-style: none;
    display: grid;
    gap: 1.2rem;
}

.activity-item {
    display: grid;
    gap: 0.4rem;
    padding-left: 1.5rem;
    position: relative;
}

.activity-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 0.65rem;
    height: 0.65rem;
    border-radius: 50%;
    background: var(--app-accent);
    box-shadow: 0 0 0 4px rgba(155, 179, 156, 0.2);
}

.activity-item time {
    font-size: 0.8rem;
    color: var(--app-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-section .roadmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-sm);
}

.info-section article {
    background: var(--app-surface-alt);
    border: 1px solid var(--app-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: inset 0 0 0 1px rgba(155, 179, 156, 0.1);
    color: var(--app-text-secondary);
}

.settings-tabs {
    display: inline-flex;
    gap: 0.4rem;
    background: var(--app-surface-alt);
    border-radius: var(--radius-lg);
    padding: 0.3rem;
    border: 1px solid var(--app-border);
}

.settings-tab {
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    padding: 0.55rem 1.2rem;
    font-weight: 600;
    color: var(--app-text-muted);
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.settings-tab.is-active {
    background: var(--app-surface);
    color: var(--app-accent-strong);
    box-shadow: 0 8px 20px rgba(18, 24, 18, 0.08);
}

.settings-panels {
    margin-top: 1.5rem;
}

.settings-panel {
    display: none;
    flex-direction: column;
    gap: 1.2rem;
}

.settings-panel.is-active {
    display: flex;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.settings-control {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.settings-control label {
    font-weight: 600;
    color: var(--app-text-secondary);
}

.settings-control input,
.settings-control select,
.settings-control textarea {
    border: 1px solid var(--app-border);
    border-radius: var(--radius-lg);
    padding: 0.8rem 1rem;
    font-size: 1rem;
    background: var(--app-surface-alt);
    color: var(--app-text-primary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.settings-control input:focus-visible,
.settings-control select:focus-visible,
.settings-control textarea:focus-visible {
    outline: none;
    border-color: var(--app-accent);
    box-shadow: 0 0 0 3px rgba(155, 179, 156, 0.22);
}

.preference-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--app-border);
    background: var(--app-surface-alt);
}

.preference-toggle label {
    font-weight: 600;
    color: var(--app-text-primary);
}

.preference-toggle span {
    color: var(--app-text-muted);
    font-size: 0.85rem;
}

.notifications-list {
    display: grid;
    gap: 0.75rem;
}

.notifications-list label {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    font-weight: 600;
    color: var(--app-text-primary);
}

.notifications-list input {
    width: 18px;
    height: 18px;
}

.form-status {
    padding: 0.75rem 0.9rem;
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    display: none;
}

.form-status.is-visible {
    display: block;
}

.form-status.success {
    background: rgba(155, 179, 156, 0.15);
    color: var(--app-text-primary);
    border: 1px solid rgba(155, 179, 156, 0.35);
}

.form-status.error {
    background: rgba(217, 82, 82, 0.15);
    color: #7f2121;
    border: 1px solid rgba(217, 82, 82, 0.35);
}

.app-footer {
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.9rem;
    color: var(--app-text-muted);
}

@media (max-width: 1024px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .app-header__inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .app-header__actions {
        width: 100%;
        justify-content: space-between;
    }

    .app-section,
    .app-card,
    .app-hero {
        padding: 1.5rem;
    }

    .settings-tabs {
        width: 100%;
    }

    .settings-tab {
        flex: 1;
        text-align: center;
    }
}