.app-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px;
    color: var(--text);
    min-height: 110px;
}

.app-card i {
    font-size: 1.4rem;
    color: var(--accent);
}

.app-card span {
    font-size: 0.95rem;
    font-weight: 600;
}

.app-card small {
    color: var(--text-soft);
    line-height: 1.35;
}

.calculator-display {
    width: 100%;
    margin-bottom: 12px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(0, 0, 0, 0.25);
    color: var(--text);
    font-size: 1.8rem;
    text-align: right;
    padding: 18px 16px;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.calc-btn {
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
    border-radius: 16px;
    padding: 16px 0;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 45vh;
    overflow: auto;
    margin-bottom: 14px;
}

.chat-message {
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
}