/* ==========================================================================
   Header, brand, segmented theme control, card titles
   ========================================================================== */

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-16);
    padding: var(--space-24) var(--space-16) var(--space-16);
}

.app-brand {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    min-width: 0;
}

.app-logo {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.app-title-group {
    min-width: 0;
}

.app-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.app-subtitle {
    margin: 2px 0 0;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Segmented control */
segment-control {
    display: inline-flex;
    align-items: center;
    background: var(--color-surface-solid);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 3px;
    gap: 2px;
    box-shadow: var(--shadow-xs);
    flex-shrink: 0;
}

.segment {
    border: none;
    background: transparent;
    padding: 7px 16px;
    border-radius: var(--radius-full);
    font-size: 0.83rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: background-color var(--dur-fast) var(--ease),
                color var(--dur-fast) var(--ease),
                box-shadow var(--dur-fast) var(--ease);
    white-space: nowrap;
    font-family: inherit;
}

.segment:hover:not(.active) {
    color: var(--color-text);
}

.segment.active {
    background: var(--color-accent);
    color: var(--color-on-accent);
    box-shadow: var(--shadow-xs);
}

/* POR info button — visually distinct, ghost accent style */
.segment.por-mini {
    margin-left: 6px;
    padding-left: 14px;
    padding-right: 14px;
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-weight: 600;
    position: relative;
}

.segment.por-mini::before {
    content: "";
    position: absolute;
    left: -6px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 16px;
    background: var(--color-border-strong);
}

.segment.por-mini:hover {
    background: var(--color-accent);
    color: var(--color-on-accent);
}

/* Card title */
.card-title {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    font-size: 1.0625rem;
    font-weight: 650;
    margin: 0 0 var(--space-12);
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.card-title .card-icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}