.tt-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--tt-space-2);
    min-height: 2.5rem;
    padding: 0 var(--tt-space-4);
    color: #fff;
    background: var(--tt-color-brand-600);
    border: 1px solid var(--tt-color-brand-600);
    border-radius: var(--tt-radius-sm);
    font-weight: 650;
    text-decoration: none;
}

.tt-button:hover {
    background: var(--tt-color-brand-700);
    border-color: var(--tt-color-brand-700);
}

.tt-button:disabled,
.tt-button[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: .6;
}

.tt-button--secondary {
    color: var(--tt-color-brand-700);
    background: var(--tt-color-surface);
    border-color: var(--tt-color-line);
}

.tt-button--secondary:hover {
    background: var(--tt-color-brand-soft);
    border-color: var(--tt-color-brand-600);
}

.tt-field {
    display: grid;
    gap: var(--tt-space-2);
    color: var(--tt-color-ink);
    font-weight: 650;
}

.tt-input {
    width: 100%;
    min-height: 2.75rem;
    padding: 0 var(--tt-space-3);
    color: var(--tt-color-ink);
    background: var(--tt-color-surface);
    border: 1px solid var(--tt-color-line);
    border-radius: var(--tt-radius-sm);
}

.tt-input:focus {
    border-color: var(--tt-color-brand-600);
    outline: 0;
    box-shadow: 0 0 0 3px var(--tt-focus-ring);
}

.tt-card,
.tt-empty-state {
    padding: var(--tt-space-6);
    background: var(--tt-color-surface);
    border: 1px solid var(--tt-color-line);
    border-radius: var(--tt-radius-lg);
    box-shadow: var(--tt-shadow-card);
}

.tt-alert {
    padding: var(--tt-space-3) var(--tt-space-4);
    color: #735324;
    background: #fff6e7;
    border: 1px solid #f3dfb3;
    border-radius: var(--tt-radius-md);
}

.tt-alert--error {
    color: var(--tt-color-danger-600);
    background: var(--tt-color-danger-soft);
    border-color: color-mix(in srgb, var(--tt-color-danger-600) 28%, white);
}

.tt-alert--success {
    color: var(--tt-color-success);
    background: var(--tt-color-success-soft);
    border-color: color-mix(in srgb, var(--tt-color-success) 28%, white);
}

.tt-alert--info {
    color: var(--tt-color-info-600);
    background: var(--tt-color-info-soft);
    border-color: color-mix(in srgb, var(--tt-color-info-600) 28%, white);
}

.tt-page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--tt-space-4);
    margin-bottom: var(--tt-space-6);
}

.tt-empty-state {
    color: var(--tt-color-muted);
    text-align: center;
}

.tt-dashboard-status {
    display: flex;
    align-items: center;
    gap: var(--tt-space-3);
    margin-bottom: var(--tt-space-6);
    padding: var(--tt-space-4);
    border: 1px solid var(--tt-color-line);
    border-radius: var(--tt-radius-md);
}

.tt-dashboard-status--attention {
    color: var(--tt-color-warning);
    background: #fff6e7;
    border-color: #f3dfb3;
}

.tt-dashboard-status--success {
    color: var(--tt-color-success);
    background: var(--tt-color-success-soft);
    border-color: color-mix(in srgb, var(--tt-color-success) 28%, white);
}

.tt-dashboard-metrics,
.tt-dashboard-quick-actions {
    display: grid;
    gap: var(--tt-space-4);
}

.tt-dashboard-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tt-dashboard-metric,
.tt-dashboard-panel,
.tt-dashboard-quick-action {
    background: var(--tt-color-surface);
    border: 1px solid var(--tt-color-line);
    border-radius: var(--tt-radius-lg);
    box-shadow: var(--tt-shadow-card);
}

.tt-auth-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(22rem, 1fr) minmax(28rem, 1fr); font-family: var(--tt-font-ui); }
.tt-auth-shell__brand { display: flex; flex-direction: column; justify-content: center; gap: var(--tt-space-4); padding: clamp(2rem, 6vw, 5rem); color: white; background: linear-gradient(145deg, var(--tt-color-brand-600), var(--tt-color-brand-700)); }
.tt-auth-shell__brand img { width: 7rem; height: auto; }
.tt-auth-shell__brand h1 { margin: 0; font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.05; }
.tt-auth-shell__brand p { max-width: 34rem; margin: 0; }
.tt-auth-shell__brand small { margin-top: var(--tt-space-6); opacity: .78; text-transform: uppercase; letter-spacing: .08em; }
.tt-auth-shell__content { display: grid; place-items: center; padding: var(--tt-space-6); background: var(--tt-color-canvas); }

.tt-dashboard-panel {
    padding: var(--tt-space-6);
}

.tt-dashboard-panel__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--tt-space-4);
}

.tt-dashboard-quick-actions {
    grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}

.tt-dashboard-quick-action {
    display: flex;
    align-items: center;
    gap: var(--tt-space-3);
    padding: var(--tt-space-4);
}

@media (max-width: 48rem) {
    .tt-dashboard-metrics,
    .tt-dashboard-quick-actions {
        grid-template-columns: 1fr;
    }
}