/*
 * PSU Wattage Calculator — app styles.
 *
 * Tokens only (see main.css). Mobile-first. The help-panel base styles come
 * from main.css; .psu-help only extends the app container width.
 */

/* ---------- container ---------- */

.psu-container {
    max-width: var(--app-container-max);
    margin: 0 auto;
}

.psu-privacy {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.psu {
    padding: var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.psu:focus {
    outline: var(--focus-ring);
    outline-offset: 2px;
}

/* ---------- result ---------- */

.psu-recommended {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--color-primary) 10%, var(--color-bg-card));
    border: 1px solid color-mix(in srgb, var(--color-primary) 30%, var(--color-border));
}

.psu-recommended-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text);
}

.psu-recommended-value {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.1;
}

.psu-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    margin: 0;
}

.psu-stat {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    text-align: center;
}

.psu-stat dt {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
}

.psu-stat dd {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.psu-subtitle {
    margin: 0;
    font-size: var(--font-size-base);
}

.psu-breakdown {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.psu-bd-row {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
}

.psu-bd-name {
    color: var(--color-text);
    overflow-wrap: anywhere;
}

.psu-bd-dots {
    flex: 1 1 auto;
    min-width: var(--space-4);
    border-bottom: 1px dotted var(--color-border);
    transform: translateY(-0.25em);
}

.psu-bd-watts {
    font-weight: 600;
    white-space: nowrap;
}

/* ---------- notes & caveat ---------- */

.psu-note {
    margin: 0;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.psu-note:empty {
    display: none;
}

.psu-note--info {
    background: color-mix(in srgb, var(--color-primary) 10%, transparent);
    color: var(--color-text);
}

.psu-note--warn {
    background: color-mix(in srgb, var(--color-warning) 14%, transparent);
    color: var(--color-text);
}

.psu-caveat {
    padding: var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid color-mix(in srgb, var(--color-warning) 40%, var(--color-border));
    background: color-mix(in srgb, var(--color-warning) 10%, transparent);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.psu-caveat p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

/* ---------- controls ---------- */

.psu-controls fieldset {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    margin: 0;
}

.psu-controls legend {
    font-weight: 600;
    font-size: var(--font-size-base);
    padding: 0 var(--space-1);
}

.psu-hint {
    margin: 0 0 var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.psu-picker {
    position: relative;
}

.psu-picker input[type="search"] {
    width: 100%;
    box-sizing: border-box;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.psu-picker input[type="search"]:hover {
    border-color: var(--color-primary);
}

.psu-picker input[type="search"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.psu-list {
    position: absolute;
    z-index: 20;
    top: calc(100% + var(--space-1));
    left: 0;
    right: 0;
    margin: 0;
    padding: var(--space-1);
    list-style: none;
    max-height: 16rem;
    overflow-y: auto;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.psu-list-btn {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-2) var(--space-2);
    font-size: var(--font-size-sm);
    text-align: left;
    color: var(--color-text);
    background: transparent;
    border: 0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.psu-list-btn:hover,
.psu-list-btn:focus {
    background: color-mix(in srgb, var(--color-primary) 12%, transparent);
    outline: var(--focus-ring);
}

.psu-list-btn:active {
    background: color-mix(in srgb, var(--color-primary) 20%, transparent);
}

.psu-list-watts {
    font-weight: 600;
    white-space: nowrap;
    color: var(--color-text-muted);
}

.psu-no-match {
    margin: var(--space-2) 0 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.psu-custom {
    margin-top: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.psu-custom-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.psu-custom-input {
    width: 8rem;
    max-width: 100%;
    padding: var(--space-2) var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.psu-custom-input:hover {
    border-color: var(--color-primary);
}

.psu-custom-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.psu-error {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-error-text);
}

.psu-selected-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-2);
    min-height: 1.5rem;
}

.psu-selected {
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    background: color-mix(in srgb, var(--color-primary) 12%, transparent);
    color: var(--color-text);
}

.psu-clear {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-1) var(--space-2);
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.psu-clear:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
}

.psu-clear:focus {
    outline: var(--focus-ring);
}

.psu-clear:active {
    background: color-mix(in srgb, var(--color-primary) 10%, transparent);
}

/* ---------- counts ---------- */

.psu-counts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-3);
}

.psu-count {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.psu-count label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.psu-count input {
    width: 100%;
    box-sizing: border-box;
    padding: var(--space-2);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.psu-count input:hover {
    border-color: var(--color-primary);
}

.psu-count input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

/* ---------- modes ---------- */

.psu-modes {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.psu-mode {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.psu-mode input {
    accent-color: var(--color-primary);
    margin: 0;
}

.psu-mode input:focus-visible {
    outline: var(--focus-ring);
    outline-offset: 2px;
}

/* ---------- custom components ---------- */

.psu-custom-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.psu-custom-fields {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
}

.psu-custom-name-input {
    flex: 1 1 10rem;
    min-width: 0;
    padding: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.psu-custom-name-input:hover {
    border-color: var(--color-primary);
}

.psu-custom-name-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.psu-btn {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary-text);
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-4);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.psu-btn:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.psu-btn:focus {
    outline: var(--focus-ring);
    outline-offset: 2px;
}

.psu-btn:active {
    background: var(--color-primary-dark);
}

.psu-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.psu-custom-list {
    list-style: none;
    margin: var(--space-2) 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.psu-custom-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    padding: var(--space-1) var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.psu-custom-name {
    flex: 1 1 auto;
    overflow-wrap: anywhere;
}

.psu-custom-watts {
    font-weight: 600;
    white-space: nowrap;
}

.psu-custom-remove {
    flex: 0 0 auto;
    font-size: var(--font-size-base);
    line-height: 1;
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    width: 1.6rem;
    height: 1.6rem;
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.psu-custom-remove:hover {
    color: var(--color-error-text);
    border-color: var(--color-error);
}

.psu-custom-remove:focus {
    outline: var(--focus-ring);
}

.psu-custom-remove:active {
    background: color-mix(in srgb, var(--color-error) 12%, transparent);
}

/* ---------- related ---------- */

.psu-related {
    max-width: var(--app-container-max);
    margin: var(--space-6) auto 0;
    padding: 0 var(--space-4);
}

.psu-related h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-3);
}

.psu-related-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.psu-related-list a {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.psu-related-list a:hover {
    border-color: var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 8%, transparent);
}

.psu-related-list a:focus {
    outline: var(--focus-ring);
}

/* ---------- narrow screens ---------- */

@media (max-width: 480px) {
    .psu-stats {
        grid-template-columns: 1fr;
    }

    .psu-recommended-value {
        font-size: var(--font-size-3xl);
    }

    .psu-custom-fields {
        flex-direction: column;
        align-items: stretch;
    }

    .psu-custom-name-input,
    .psu-btn {
        width: 100%;
    }
}