/* ==========================================================================
   Fertigrasen Hedderich - Preisrechner Styles
   Calculator form, results panel, and related components
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Calculator Container
   -------------------------------------------------------------------------- */
.calculator {
    max-width: 720px;
    margin: 0 auto;
}

.calculator__intro {
    text-align: center;
    margin-bottom: var(--space-2xl);
    font-size: var(--font-size-lg);
    color: #555;
}


/* --------------------------------------------------------------------------
   2. Calculator Form
   -------------------------------------------------------------------------- */
.calculator__form {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-xl);
}

.calculator__fields {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-end;
    flex-wrap: wrap;
}

.calculator__field {
    flex: 1;
    min-width: 160px;
}

.calculator__label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
}

.calculator__label-hint {
    font-weight: 400;
    font-size: var(--font-size-xs);
    color: #888;
    display: block;
    margin-top: 2px;
}

/* Select field */
.calculator__select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-input);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-white);
    cursor: pointer;
    transition: border-color var(--transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23333' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.calculator__select:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.1);
}

/* Number input */
.calculator__input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-input);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    color: var(--color-text);
    transition: border-color var(--transition-fast);
    -moz-appearance: textfield;
}

.calculator__input::-webkit-inner-spin-button,
.calculator__input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.calculator__input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.1);
}

.calculator__input::placeholder {
    color: #bbb;
}

/* PLZ input */
.calculator__input--plz {
    letter-spacing: 1px;
    font-weight: 600;
}

/* Submit button */
.calculator__submit {
    flex-shrink: 0;
    padding: 0.75rem 2rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-btn);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    min-height: 48px;
}

.calculator__submit:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.calculator__submit:active {
    transform: translateY(0);
}

/* Validation error */
.calculator__field--error .calculator__select,
.calculator__field--error .calculator__input {
    border-color: #ef4444;
}

.calculator__error-msg {
    font-size: var(--font-size-xs);
    color: #ef4444;
    margin-top: var(--space-xs);
    display: none;
}

.calculator__field--error .calculator__error-msg {
    display: block;
}


/* --------------------------------------------------------------------------
   3. Results Panel
   -------------------------------------------------------------------------- */
.calculator__results {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--color-white);
    border-radius: var(--radius-card);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(12px);
    transition: all var(--transition-slow);
    display: none;
}

.calculator__results.is-visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.calculator__results-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

/* Price breakdown */
.calculator__breakdown {
    margin-bottom: var(--space-xl);
}

.calculator__breakdown dl {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-sm) var(--space-md);
    align-items: baseline;
}

.calculator__breakdown dt {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.calculator__breakdown dd {
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: right;
}

/* Total price */
.calculator__total {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-top: var(--space-lg);
    border-top: 2px solid rgba(255, 255, 255, 0.3);
    margin-bottom: var(--space-xl);
}

.calculator__total-label {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.calculator__total-price {
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 800;
}

.calculator__total-note {
    font-size: var(--font-size-xs);
    opacity: 0.7;
    text-align: right;
    margin-top: var(--space-xs);
}

/* Zone info */
.calculator__zone-info {
    font-size: var(--font-size-sm);
    opacity: 0.85;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-btn);
}

/* Contact message for Zone 3 */
.calculator__contact-message {
    text-align: center;
    padding: var(--space-xl);
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

.calculator__contact-message a {
    color: var(--color-accent-light);
    text-decoration: underline;
}

/* Order button */
.calculator__order-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background-color: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-btn);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--font-size-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.calculator__order-btn:hover {
    background-color: #c49a38;
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 168, 67, 0.4);
}

.calculator__order-btn:active {
    transform: translateY(0);
}


/* --------------------------------------------------------------------------
   4. Loading State
   -------------------------------------------------------------------------- */
.calculator__loading {
    display: none;
    text-align: center;
    padding: var(--space-2xl);
}

.calculator__loading.is-active {
    display: block;
}

.calculator__spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto var(--space-md);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.calculator__loading-text {
    font-size: var(--font-size-sm);
    color: #888;
}


/* --------------------------------------------------------------------------
   5. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .calculator__fields {
        flex-direction: column;
    }

    .calculator__field {
        min-width: 100%;
    }

    .calculator__submit {
        width: 100%;
    }

    .calculator__form {
        padding: var(--space-lg);
    }

    .calculator__results {
        padding: var(--space-lg);
    }

    .calculator__total-price {
        font-size: var(--font-size-2xl);
    }

    .calculator__breakdown dl {
        gap: var(--space-xs) var(--space-sm);
    }
}

@media (max-width: 480px) {
    .calculator__form {
        padding: var(--space-md);
    }

    .calculator__results {
        padding: var(--space-md);
    }
}