/**
 * WATERRE - Calculateur de devis
 * Styles spécifiques au calculateur
 * Version: 1.0
 */

/* ============================================
   CALCULATOR SECTION
   ============================================ */
.calculator-section {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, var(--blue-deep) 0%, #0A4A6E 100%);
    position: relative;
    overflow: hidden;
}

.calculator-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle,
        rgba(0, 184, 196, 0.15) 0%,
        transparent 70%
    );
    pointer-events: none;
}

.calculator-section .section-tag {
    color: var(--turquoise);
}

.calculator-section .section-title {
    color: var(--white);
}

.calculator-section .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.calculator-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   CALCULATOR FORM
   ============================================ */
.calculator-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

/* ============================================
   CALCULATOR STEPS
   ============================================ */
.calc-step {
    position: relative;
}

.calc-step-title {
    font-size: var(--text-xl);
    color: var(--white);
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--turquoise);
    color: var(--white);
    border-radius: 50%;
    font-size: var(--text-sm);
    font-weight: 700;
}

/* ============================================
   PROJECT TYPE OPTIONS
   ============================================ */
.calc-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.calc-option {
    cursor: pointer;
}

.calc-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.option-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    text-align: center;
}

.calc-option input[type="radio"]:checked + .option-card {
    background: rgba(0, 184, 196, 0.15);
    border-color: var(--turquoise);
    box-shadow: 0 0 20px rgba(0, 184, 196, 0.2);
    transform: translateY(-4px);
}

.option-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.option-icon {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    transition: background var(--transition-fast);
}

.calc-option input[type="radio"]:checked + .option-card .option-icon {
    background: var(--turquoise);
}

.option-icon img {
    width: 40px;
    height: 40px;
    filter: brightness(0) invert(1);
}

.option-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--white);
}

/* ============================================
   PARAMETERS
   ============================================ */
.calc-params {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.param-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.param-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.param-input-wrapper {
    position: relative;
}

/* Range Input Custom */
.param-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    outline: none;
    cursor: pointer;
    margin: var(--spacing-md) 0;
}

.param-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 28px;
    height: 28px;
    background: var(--turquoise);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(0, 184, 196, 0.5);
    transition: transform var(--transition-fast);
}

.param-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.param-range::-moz-range-thumb {
    width: 28px;
    height: 28px;
    background: var(--turquoise);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 15px rgba(0, 184, 196, 0.5);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    margin-top: var(--spacing-xs);
}

.range-value {
    position: absolute;
    top: -2rem;
    right: 0;
    background: var(--turquoise);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    transform: translateX(50%);
    pointer-events: none;
}

.range-value::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--turquoise);
}

/* Select Input */
.param-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    outline: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    appearance: none;
    -webkit-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='%23FFFFFF' 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;
}

.param-select:focus {
    border-color: var(--turquoise);
    box-shadow: 0 0 0 4px rgba(0, 184, 196, 0.1);
}

.param-select option {
    background: var(--blue-deep);
    color: var(--white);
}

/* Number Input */
.param-input {
    width: 100%;
    padding: 0.875rem 1rem;
    padding-right: 3rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    outline: none;
    transition: all var(--transition-fast);
}

.param-input:focus {
    border-color: var(--turquoise);
    box-shadow: 0 0 0 4px rgba(0, 184, 196, 0.1);
}

.param-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.input-suffix {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-sm);
    pointer-events: none;
}

/* ============================================
   CALCULATOR BUTTON
   ============================================ */
.btn-calculate {
    width: 100%;
    justify-content: center;
    padding: 1.25rem 2rem;
    font-size: var(--text-lg);
    background: var(--yellow-solar);
    border-color: var(--yellow-solar);
    color: var(--blue-deep);
}

.btn-calculate:hover {
    background: #E5A800;
    border-color: #E5A800;
    box-shadow: 0 10px 30px rgba(244, 180, 0, 0.3);
}

.btn-calculate:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   RESULT CARD
   ============================================ */
.calc-result {
    animation: resultSlideIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes resultSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.result-title {
    font-size: var(--text-xl);
    color: var(--white);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.result-amount {
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(0, 184, 196, 0.1);
    border: 2px solid var(--turquoise);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xl);
}

.amount-label {
    display: block;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.amount-value {
    display: block;
    font-size: var(--text-5xl);
    font-weight: 800;
    color: var(--yellow-solar);
    font-family: var(--font-display);
}

.amount-note {
    display: block;
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    margin-top: var(--spacing-sm);
    font-style: italic;
}

.result-details {
    margin-bottom: var(--spacing-xl);
}

.result-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-sm);
}

.result-detail-item:last-child {
    border-bottom: none;
}

.result-detail-label {
    color: rgba(255, 255, 255, 0.6);
}

.result-detail-value {
    font-weight: 600;
    color: var(--white);
}

.result-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.btn-whatsapp {
    background: #25D366;
    border-color: #25D366;
    justify-content: center;
    width: 100%;
}

.btn-whatsapp:hover {
    background: #128C7E;
    border-color: #128C7E;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.calc-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
}

.calc-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--turquoise);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.calc-loading-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
}