#calc-basica-app {
    max-width: 360px;
    margin: 0 auto;
}

#calc-basica-app .calc-calculator-container {
    width: 100%;
    display: flex;
    flex-direction: column;
}

/* ===== Fullscreen ===== */
#calc-basica-app.calc-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    margin: 0;
    z-index: 9999;
    background: var(--pp-surface, #f8f9fa);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    padding: 16px;
    flex-direction: column;
}

#calc-basica-app.calc-fullscreen .calc-calculator-container {
    width: min(360px, 100%);
    box-sizing: border-box;
    flex-shrink: 0;
    transform-origin: center center;
}

/* ===== Display ===== */
#calc-basica-app .calc-display-wrapper {
    background: var(--pp-surface, #f8f9fa);
    border: 2px solid var(--pp-line, #e0e0e0);
    border-radius: 12px 12px 0 0;
    padding: 16px;
    text-align: right;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

#calc-basica-app .calc-expresao {
    font-size: 14px;
    color: var(--pp-text-soft, #6c757d);
    min-height: 20px;
    word-break: break-all;
    margin-bottom: 4px;
}

#calc-basica-app .calc-resultado {
    font-size: 32px;
    font-weight: 600;
    color: var(--pp-text, #172033);
    word-break: break-all;
    line-height: 1.2;
}

/* ===== Histórico ===== */
#calc-basica-app .calc-historico-header {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--pp-surface, #f8f9fa);
    border-left: 2px solid var(--pp-line, #e0e0e0);
    border-right: 2px solid var(--pp-line, #e0e0e0);
    font-size: 12px;
    color: var(--pp-text-soft, #6c757d);
}

#calc-basica-app .calc-header-actions {
    display: flex;
    flex-wrap: wrap;
    margin-left: auto;
    align-items: center;
    gap: 2px;
}

#calc-basica-app .calc-header-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    color: var(--pp-text-soft, #6c757d);
    transition: background 0.15s, color 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

#calc-basica-app .calc-header-btn:hover {
    background: var(--pp-surface-muted, #e9ecef);
    color: var(--pp-text, #172033);
}

#calc-basica-app .calc-historico {
    background: var(--pp-surface, #f8f9fa);
    border: 2px solid var(--pp-line, #e0e0e0);
    border-top: none;
    border-radius: 0 0 8px 8px;
    max-height: 150px;
    overflow-y: auto;
    margin-bottom: 8px;
}

#calc-basica-app .calc-historico:empty {
    display: none;
}

#calc-basica-app .calc-historico-item {
    padding: 8px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--pp-line, #e0e0e0);
    transition: background 0.15s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#calc-basica-app .calc-historico-item:last-child {
    border-bottom: none;
}

#calc-basica-app .calc-historico-item:hover {
    background: var(--pp-surface-muted, #e9ecef);
}

#calc-basica-app .calc-historico-conteudo {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;
    cursor: pointer;
    min-width: 0;
}

#calc-basica-app .calc-historico-delete {
    background: none;
    border: none;
    color: var(--pp-text-soft, #6c757d);
    font-size: 18px;
    line-height: 1;
    padding: 2px 6px;
    margin-left: 8px;
    cursor: pointer;
    border-radius: 4px;
    opacity: 1;
    transition: opacity 0.2s, color 0.2s, background 0.2s;
    flex-shrink: 0;
}

#calc-basica-app .calc-historico-item:hover .calc-historico-delete {
    opacity: 1;
}

#calc-basica-app .calc-historico-delete:hover {
    color: #ff6b6b;
    background: rgba(255,107,107,0.1);
}

#calc-basica-app .calc-historico-expr {
    font-size: 12px;
    color: var(--pp-text-soft, #6c757d);
}

#calc-basica-app .calc-historico-res {
    font-size: 14px;
    font-weight: 600;
    color: var(--pp-accent, #3f59f9);
}

/* ===== Teclado ===== */
#calc-basica-app .calc-teclado {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    background: var(--pp-surface, #f8f9fa);
    border: 2px solid var(--pp-line, #e0e0e0);
    border-top: none;
    border-radius: 0;
}

#calc-basica-app .calc-linha {
    display: flex;
    gap: 8px;
}

#calc-basica-app .calc-btn {
    flex: 1;
    height: 56px;
    border: none;
    border-radius: 8px;
    font-size: 20px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    touch-action: manipulation;
}

#calc-basica-app .calc-btn:active {
    transform: scale(0.95);
}

/* Botões numéricos - cores adaptativas para light/dark mode */
#calc-basica-app .calc-btn-num {
    background: var(--pp-surface-elevated, #ffffff);
    color: var(--pp-text, #172033);
    border: 1px solid var(--pp-line, #e0e0e0);
}

#calc-basica-app .calc-btn-num:hover {
    background: var(--pp-surface-muted, #f6f8fc);
}

#calc-basica-app .calc-btn-op {
    background: var(--pp-accent, #3f59f9);
    color: var(--calc-action-text, #ffffff);
    opacity: 0.9;
}

#calc-basica-app .calc-btn-op:hover {
    opacity: 1;
}

#calc-basica-app .calc-btn-clear {
    background: var(--calc-clear-bg, #d83d4b);
    color: var(--calc-action-text, #ffffff);
}

#calc-basica-app .calc-btn-clear:hover {
    filter: brightness(0.92);
}

#calc-basica-app .calc-btn-equals {
    background: var(--pp-accent, #3f59f9);
    color: var(--calc-action-text, #ffffff);
    font-weight: 700;
}

#calc-basica-app .calc-btn-equals:hover {
    filter: brightness(0.92);
}

#calc-basica-app .calc-copy-row {
    margin-top: 12px;
}

/* ===== Modal ===== */
#calc-modal-help kbd {
    display: inline-block;
    padding: 2px 8px;
    font-size: 12px;
    font-family: monospace;
    background: var(--pp-surface, #f8f9fa);
    border: 1px solid var(--pp-line, #e0e0e0);
    border-radius: 4px;
    box-shadow: 0 1px 0 var(--pp-line, #ccc);
}

#calc-modal-help .uk-table {
    margin-bottom: 16px;
}

#calc-modal-help h4 {
    margin-top: 16px;
    margin-bottom: 8px;
}

/* The site theme owns surfaces and text in both explicit and automatic themes. */
html[data-theme="dark"] #calc-basica-app {
    --calc-action-text: #0f172a;
    --calc-clear-bg: #f38ba8;
}
@media (prefers-color-scheme: dark) {
    html:not([data-theme="light"]) #calc-basica-app {
        --calc-action-text: #0f172a;
        --calc-clear-bg: #f38ba8;
    }
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
    #calc-basica-app {
        max-width: 100%;
        padding: 0 8px;
    }

    #calc-basica-app .calc-btn {
        height: 52px;
        font-size: 18px;
    }

    #calc-basica-app .calc-resultado {
        font-size: 28px;
    }
}

@media (max-width: 360px) {
    #calc-basica-app .calc-btn {
        height: 46px;
        font-size: 16px;
    }

    #calc-basica-app .calc-linha {
        gap: 6px;
    }
}

#calc-basica-app.calc-fullscreen { max-width: none; box-sizing: border-box; height: 100dvh; }
#calc-basica-app .calc-historico-conteudo { border: 0; background: transparent; text-align: left; gap: 8px; padding: 6px 0; font: inherit; }
#calc-basica-app .calc-historico-expr { overflow-wrap: anywhere; }
#calc-basica-app .calc-historico-delete { min-width: 44px; min-height: 44px; }
#calc-basica-app .calc-header-btn { min-width: 44px; min-height: 44px; }
#calc-basica-app .calc-copy-row { display: grid; gap: 8px; }
#calc-basica-app button:focus-visible, #calc-basica-app select:focus-visible { outline: 3px solid var(--pp-accent, #3f59f9); outline-offset: 2px; }

#calc-basica-app { box-sizing: border-box; }
#calc-basica-app .calc-copy-row .uk-button-primary {
    background: var(--pp-accent, #3f59f9);
    color: var(--calc-action-text, #ffffff);
}

#calc-basica-app.calc-fullscreen.calc-scroll {
    justify-content: flex-start;
}