/* ═══════════════════════════════════════════
   Currency Calculator – Styles
   ═══════════════════════════════════════════ */

/* ─── Rate setup ─── */
.rate-setup {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
}

.rate-setup .eq-sign {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent2);
    text-align: center;
}

.rate-field {
    display: flex;
    flex-direction: column;
    gap: .4rem;
}

.rate-field label {
    font-size: .78rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.rate-field input[type=number] {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: 'Sarabun', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: .6rem .9rem;
    outline: none;
    transition: border-color .2s;
}

.rate-field input[type=number]:focus {
    border-color: var(--accent2);
    box-shadow: 0 0 0 3px rgba(200, 168, 75, .12);
}

/* ─── Calc grid ─── */
.calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.calc-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.calc-box label {
    font-size: .8rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.calc-input-wrap {
    position: relative;
}

.calc-input-wrap input {
    width: 100%;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: 'Sarabun', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    padding: .7rem 3.5rem .7rem 1rem;
    outline: none;
    transition: border-color .2s;
}

.calc-input-wrap input:focus {
    border-color: var(--accent2);
    box-shadow: 0 0 0 3px rgba(200, 168, 75, .12);
}

.calc-input-wrap .unit-badge {
    position: absolute;
    right: .75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: .75rem;
    color: var(--muted);
    font-weight: 600;
    background: var(--surface);
    padding: .15rem .4rem;
    border-radius: 4px;
    pointer-events: none;
}

.calc-result {
    font-size: .9rem;
    color: var(--success);
    font-weight: 600;
    min-height: 1.4em;
}

/* ─── History ─── */
.history-list {
    display: flex;
    flex-direction: column;
    gap: .4rem;
    max-height: 240px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .5rem .85rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .83rem;
    animation: fadeSlide .2s ease;
}

@keyframes fadeSlide {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.history-item .hi-left {
    color: var(--muted);
}

.history-item .hi-right {
    font-weight: 600;
    color: var(--success);
}

.empty-history {
    text-align: center;
    color: var(--muted);
    font-size: .85rem;
    padding: 1.5rem 0;
}

/* ─── Responsive ─── */
@media (max-width: 560px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }

    .rate-setup {
        grid-template-columns: 1fr;
    }

    .rate-setup .eq-sign {
        display: none;
    }
}