/* Mechanical Key Gen — components: cards, password display, buttons, controls, checkboxes, strength, history, toast */

/* ─── Cards ───────────────────────────────────────────────── */

.card {
    background: var(--color-surface);
    border: 2px solid var(--color-outline);
    padding: var(--space-lg);
}

.card--row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

/* ─── Password display ───────────────────────────────────── */

.password-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    position: relative;
}

.password-display__value {
    font-family: var(--font-mono);
    font-size: 28px;
    font-weight: 400;
    letter-spacing: 0.02em;
    word-break: break-all;
    user-select: all;
    flex: 1;
    min-height: 1.2em;
}

.password-display__actions {
    display: flex;
    gap: var(--space-sm);
}

/* ─── Buttons (mechanical click effect) ──────────────────── */

.btn {
    appearance: none;
    border: 2px solid var(--color-outline);
    background: var(--color-surface);
    color: var(--color-on-surface);
    font-family: inherit;
    font-size: inherit;
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    box-shadow: 2px 2px 0 0 var(--color-outline);
    transition: transform 80ms ease, box-shadow 80ms ease, background 120ms ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.btn:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn:focus-visible {
    outline: 3px solid var(--color-secondary);
    outline-offset: 3px;
}

.btn:active {
    transform: translate(2px, 2px);
    box-shadow: 0 0 0 0 var(--color-outline);
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
}

.btn--icon {
    padding: var(--space-sm);
    font-family: var(--font-sans);
    font-weight: 700;
}

.btn--block {
    width: 100%;
    padding: var(--space-lg);
    font-size: 22px;
    font-weight: 700;
}

.btn--ghost {
    box-shadow: none;
    background: transparent;
    border-color: transparent;
}

.btn--ghost:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-outline);
}

/* ─── Controls card ──────────────────────────────────────── */

.controls {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.control__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.control__label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.control__value {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-mono);
    min-width: 2ch;
    text-align: right;
}

.divider {
    height: 1px;
    background: var(--color-outline);
    opacity: 0.5;
    margin: var(--space-sm) 0;
}

/* ─── Range slider ───────────────────────────────────────── */

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    background: transparent;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
    height: 2px;
    background: var(--color-outline);
}

input[type="range"]::-moz-range-track {
    height: 2px;
    background: var(--color-outline);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 18px;
    width: 18px;
    background: var(--color-secondary);
    border: 2px solid var(--color-outline);
    margin-top: -8px;
}

input[type="range"]::-moz-range-thumb {
    height: 18px;
    width: 18px;
    background: var(--color-secondary);
    border: 2px solid var(--color-outline);
    border-radius: 0;
}

input[type="range"]:focus-visible {
    outline: 3px solid var(--color-secondary);
    outline-offset: 4px;
}

/* ─── Checkboxes grid ────────────────────────────────────── */

.checkbox-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

@media (min-width: 480px) {
    .checkbox-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .checkbox-grid { grid-template-columns: 1fr 1fr 1fr; }
}

.checkbox {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    user-select: none;
}

.checkbox input[type="checkbox"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-outline);
    background: transparent;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
}

.checkbox input[type="checkbox"]:checked::after {
    content: "X";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    color: var(--color-outline);
    line-height: 1;
}

.checkbox input[type="checkbox"]:focus-visible {
    outline: 3px solid var(--color-secondary);
    outline-offset: 3px;
}

.checkbox__label {
    font-size: 14px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ─── Strength indicator ─────────────────────────────────── */

.strength {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.strength__label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.strength__meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-xs);
}

.strength__level {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.strength__bars {
    display: flex;
    gap: 4px;
}

.strength__bar {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-outline);
    background: transparent;
}

.strength__bar--filled {
    background: var(--color-secondary);
}

.strength[data-level="1"] .strength__level { color: var(--color-error); }
.strength[data-level="2"] .strength__level { color: #a06000; }
.strength[data-level="3"] .strength__level { color: var(--color-secondary); }
.strength[data-level="4"] .strength__level { color: #1a7a1a; }

/* ─── History panel ──────────────────────────────────────── */

.history {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.history__title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.history__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    max-height: 200px;
    overflow-y: auto;
}

.history__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    border-bottom: 1px dashed rgba(0, 0, 0, 0.2);
    font-size: 14px;
}

.history__value {
    flex: 1;
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
    word-break: break-all;
}

.history__value--masked {
    filter: blur(3px);
    transition: filter 120ms;
}

.history__value--masked:hover,
.history__value--masked:focus {
    filter: blur(0);
}

.history__empty {
    font-size: 12px;
    color: var(--color-muted);
    font-style: italic;
}

/* ─── Toast ──────────────────────────────────────────────── */

.toast {
    position: fixed;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-outline);
    color: var(--color-surface);
    padding: var(--space-sm) var(--space-md);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease;
    z-index: 100;
}

.toast--visible {
    opacity: 1;
}