/**
 * CoilCalc Frontend-Styles
 *
 * Design orientiert am Look der iOS-App und am Liquidrechner,
 * kompatibel mit dem Shoptimizer-Child-Theme.
 *
 * @package CoilCalc
 */

/* -------- Farbvariablen (einfach anpassbar) -------- */
.coilcalc-container {
    --cc-primary: #673AB7;
    --cc-primary-dark: #5e35b1;
    --cc-bg: #ffffff;
    --cc-surface: #f7f7fb;
    --cc-surface-2: #eceef4;
    --cc-border: #e3e5ec;
    --cc-text: #1f2230;
    --cc-text-muted: #5c6070;
    --cc-safe: #2e7d32;
    --cc-warning: #ef6c00;
    --cc-danger: #c62828;
    --cc-radius: 10px;
    --cc-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

/* -------- Container -------- */
.coilcalc-container {
    max-width: 820px;
    margin: 0 auto;
    padding: 24px;
    background-color: var(--cc-bg);
    border-radius: var(--cc-radius);
    box-shadow: var(--cc-shadow);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    color: var(--cc-text);
    line-height: 1.4;
}

.coilcalc-title {
    color: var(--cc-primary);
    font-size: 24px;
    margin: 0 0 20px;
    text-align: center;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--cc-primary);
}

.coilcalc-section-title {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--cc-text-muted);
    margin: 16px 0 12px;
}

/* -------- Formular-Zeilen -------- */
.coilcalc-form-row {
    margin-bottom: 18px;
    padding: 14px;
    background: var(--cc-surface);
    border-radius: 8px;
}

.coilcalc-form-row > label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--cc-text);
    margin-bottom: 10px;
    font-size: 14px;
}

.coilcalc-value {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-weight: 700;
    color: var(--cc-primary);
    background: var(--cc-surface-2);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 13px;
}

.coilcalc-hint {
    font-size: 12px;
    color: var(--cc-text-muted);
    margin-top: 6px;
}

.coilcalc-input-group { display: flex; align-items: center; }

/* -------- Selects -------- */
.coilcalc-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--cc-border);
    border-radius: 8px;
    font-size: 15px;
    background: #fff;
    color: var(--cc-text);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23673AB7' d='M6 9 1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.coilcalc-select:focus {
    outline: none;
    border-color: var(--cc-primary);
    box-shadow: 0 0 0 3px rgba(103, 58, 183, 0.15);
}

/* -------- Slider (jQuery UI Overrides) -------- */
.coilcalc-slider {
    flex: 1;
    height: 6px;
    background: var(--cc-surface-2);
    border-radius: 4px;
    border: none;
    margin: 14px 4px;
}

.ui-slider.coilcalc-slider .ui-slider-handle {
    background: #fff;
    border: 2px solid var(--cc-primary);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    top: -8px;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.15s;
}
.ui-slider.coilcalc-slider .ui-slider-handle:hover,
.ui-slider.coilcalc-slider .ui-slider-handle:focus {
    transform: scale(1.12);
    outline: none;
}
.ui-slider.coilcalc-slider .ui-slider-range {
    background: var(--cc-primary);
    border-radius: 4px;
}

/* -------- Segmented Control -------- */
.coilcalc-segmented {
    display: flex;
    background: var(--cc-surface-2);
    padding: 4px;
    border-radius: 10px;
    gap: 4px;
}

.coilcalc-segment {
    flex: 1;
    padding: 9px 10px;
    border: none;
    background: transparent;
    border-radius: 7px;
    font-size: 14px;
    font-weight: 600;
    color: var(--cc-text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.coilcalc-segment:hover { color: var(--cc-text); }

.coilcalc-segment.is-active {
    background: #fff;
    color: var(--cc-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* -------- Toggle (iOS-Style) -------- */
.coilcalc-toggle-label {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.coilcalc-toggle-label input[type="checkbox"] { display: none; }

.coilcalc-toggle {
    width: 44px;
    height: 26px;
    background: #ccc;
    border-radius: 13px;
    position: relative;
    transition: background 0.2s;
    flex-shrink: 0;
}

.coilcalc-toggle::before {
    content: "";
    position: absolute;
    top: 2px; left: 2px;
    width: 22px; height: 22px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
}

.coilcalc-toggle-label input:checked ~ .coilcalc-toggle { background: var(--cc-primary); }
.coilcalc-toggle-label input:checked ~ .coilcalc-toggle::before { transform: translateX(18px); }

.coilcalc-voltage-wrap { margin-top: 10px; }
.coilcalc-value-row { text-align: right; margin-bottom: 4px; }

/* -------- Ergebnisse -------- */
.coilcalc-results {
    margin-top: 24px;
    padding: 20px;
    background: var(--cc-surface);
    border-radius: var(--cc-radius);
    border-left: 4px solid var(--cc-primary);
    animation: cc-fadeIn 0.35s ease-out;
}

.coilcalc-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}

.coilcalc-result-item {
    background: #fff;
    padding: 14px 16px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.coilcalc-result-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--cc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.coilcalc-result-value {
    font-size: 22px;
    color: var(--cc-primary);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* Safety-Status-Badge */
.coilcalc-safety {
    display: inline-block;
    margin-top: 6px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 10px;
}
.coilcalc-safety.is-safe      { background: #e8f5e9; color: var(--cc-safe); }
.coilcalc-safety.is-warning   { background: #fff3e0; color: var(--cc-warning); }
.coilcalc-safety.is-dangerous { background: #ffebee; color: var(--cc-danger); }

/* -------- Formeln (Details) -------- */
.coilcalc-formulas {
    margin-top: 20px;
    padding: 14px 16px;
    background: var(--cc-surface);
    border-radius: 8px;
    font-size: 14px;
}
.coilcalc-formulas summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--cc-primary);
    padding: 2px 0;
}
.coilcalc-formulas summary::-webkit-details-marker { color: var(--cc-primary); }
.coilcalc-formulas-body h4 { margin: 14px 0 6px; color: var(--cc-text); font-size: 14px; }
.coilcalc-formulas-body pre {
    background: #fff;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    margin: 0 0 6px;
    overflow-x: auto;
    border: 1px solid var(--cc-border);
}
.coilcalc-vars { font-size: 12px; color: var(--cc-text-muted); margin-top: 10px; }

/* -------- Fehlermeldung / Disclaimer -------- */
.coilcalc-error {
    margin-top: 16px;
    padding: 12px 14px;
    background: #ffebee;
    border-left: 4px solid var(--cc-danger);
    color: var(--cc-danger);
    border-radius: 4px;
    font-size: 14px;
}

.coilcalc-disclaimer {
    margin-top: 20px;
    padding: 12px 14px;
    background: #fff8e1;
    border-left: 3px solid #f9a825;
    color: #5d4037;
    font-size: 13px;
    border-radius: 4px;
}

/* -------- Responsive -------- */
@media (max-width: 640px) {
    .coilcalc-container { padding: 16px; }
    .coilcalc-result-value { font-size: 20px; }
    .coilcalc-segment { padding: 8px 4px; font-size: 13px; }
    .coilcalc-results-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 420px) {
    .coilcalc-results-grid { grid-template-columns: 1fr; }
}

/* -------- Animation -------- */
@keyframes cc-fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}