/* ==================== ESTIMATOR.CSS ==================== */
.estimator-section {
    padding: 40px 0 100px;
    background-color: #0b0f19;
    background-image: 
        radial-gradient(circle at 15% 40%, rgba(31, 182, 232, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 60%, rgba(142, 60, 247, 0.1) 0%, transparent 50%);
    position: relative;
    overflow: hidden;
}

.estimator-container {
    max-width: 1000px;
    margin: 60px auto 0;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 50px 40px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
}

.estimator-back-btn {
    position: absolute;
    top: 30px;
    left: 40px;
    background: none;
    border: none;
    color: #64748b;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    z-index: 10;
}

.estimator-back-btn:hover {
    color: var(--primary-blue);
    transform: translateX(-5px);
}

.step-progress {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    margin-bottom: 50px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 33.33%;
    background: var(--primary-gradient);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.estimator-step {
    display: none;
    animation: fadeInStep 0.5s ease-out forwards;
}

.estimator-step.active {
    display: block;
}

@keyframes fadeInStep {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.estimator-step h3 {
    font-size: 2rem;
    color: #ffffff;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 800;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4 cards on desktop */
    gap: 20px;
    margin-top: 30px;
    width: 100%;
}

@media (max-width: 886px) {
    .options-grid {
        grid-template-columns: repeat(2, 1fr); /* 2x2 on tablets/mobile */
        gap: 15px;
    }
    
    .option-card {
        min-height: 160px;
        padding: 25px 15px;
    }
}

.option-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 35px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    min-height: 180px;
    justify-content: center;
}

.option-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.option-card.selected {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-blue);
    box-shadow: 0 15px 35px rgba(31, 182, 232, 0.2);
}

.option-card i {
    font-size: 2.2rem; /* Sized down slightly for 4-in-a-row */
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.option-card span {
    font-weight: 700;
    color: #e2e8f0;
    font-size: 0.95rem;
}

.estimator-step[data-step="3"].active {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.input-group-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    width: 100%;
}

.estimator-step[data-step="3"].active h3,
.estimator-step[data-step="3"].active .input-group-grid,
.estimator-step[data-step="3"].active textarea,
.estimator-step[data-step="3"].active button {
    grid-column: 1;
}

#estimator-form input,
#estimator-form textarea,
#estimator-form select {
    width: 100%;
    padding: 18px 25px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

#estimator-form select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='rgba(255,255,255,0.6)'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px center;
    background-size: 18px;
    cursor: pointer;
    padding-right: 50px;
}

#estimator-form select option {
    background: #0b0f2a;
    color: white;
}

#estimator-form textarea {
    height: 120px;
    resize: none;
    padding-top: 15px;
}

@media (max-width: 768px) {
    .input-group-grid {
        grid-template-columns: 1fr;
    }
}

#estimator-form input:focus,
#estimator-form textarea:focus {
    border-color: var(--primary-blue);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(31, 182, 232, 0.15);
}

.estimator-nav {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

/* Mobile Adjustments */
@media (max-width: 992px) {
    .options-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .estimator-container {
        padding: 60px 20px 40px; /* Increased top padding to 60px */
    }
    
    .estimator-back-btn {
        top: 20px; /* Moved up slightly */
        left: 20px; /* Aligned with container padding */
        font-size: 0.9rem;
    }
    
    .estimator-step h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .estimator-container {
        padding: 65px 15px 35px;
    }

    .estimator-back-btn {
        top: 18px;
        left: 15px;
    }

    .options-grid {
        gap: 12px;
    }
    
    .option-card {
        padding: 20px 10px;
    }
    
    .option-card span {
        font-size: 0.85rem;
    }
}