/* ============================================
   Build Optimizer - Custom Styles
   ============================================ */

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 20px 60px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.hero-section .last-updated {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

/* Optimizer Section */
.optimizer-section {
    padding: 60px 20px;
    background: linear-gradient(to bottom, #f8f9fa 0%, #ffffff 100%);
}

/* Step Indicator */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 50px;
    padding: 0 20px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #e9ecef;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.step.active .step-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transform: scale(1.1);
}

.step.completed .step-number {
    background: #28a745;
    color: white;
}

.step-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #6c757d;
    text-align: center;
}

.step.active .step-label {
    color: #667eea;
}

.step-line {
    width: 80px;
    height: 3px;
    background: #e9ecef;
    margin: 0 10px;
    position: relative;
    top: -18px;
}

.step.active + .step-line {
    background: linear-gradient(to right, #667eea 0%, #e9ecef 100%);
}

/* Form Container */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

.step-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.step-description {
    font-size: 1rem;
    color: #6c757d;
    margin-bottom: 2rem;
}

/* Form Groups */
.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.form-group input[type="number"] {
    width: 100%;
    padding: 12px 20px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input[type="number"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: #6c757d;
    font-size: 0.875rem;
}

/* Radio Groups */
.radio-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
}

.radio-option {
    cursor: pointer;
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    transition: all 0.3s ease;
    background: white;
}

.radio-option input[type="radio"]:checked + .radio-card {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.radio-card:hover {
    border-color: #667eea;
    transform: translateY(-2px);
}

.radio-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.radio-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 5px;
    color: #2c3e50;
}

.radio-desc {
    font-size: 0.85rem;
    color: #6c757d;
}

/* Checkbox Groups */
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.checkbox-option {
    cursor: pointer;
}

.checkbox-option input[type="checkbox"] {
    display: none;
}

.checkbox-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    transition: all 0.3s ease;
    background: white;
}

.checkbox-option input[type="checkbox"]:checked + .checkbox-card {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.checkbox-card:hover {
    border-color: #667eea;
    transform: translateY(-2px);
}

.checkbox-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.checkbox-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: #2c3e50;
}

/* Slider Groups */
.slider-group {
    margin-top: 1rem;
}

.slider-group input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #e9ecef;
    outline: none;
    -webkit-appearance: none;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.4);
}

.slider-group input[type="range"]::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.4);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.85rem;
    color: #6c757d;
}

.slider-labels span:nth-child(2) {
    font-weight: 700;
    color: #667eea;
}

/* Select Multiple */
.form-group select[multiple] {
    width: 100%;
    padding: 10px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    min-height: 150px;
    font-size: 0.95rem;
}

.form-group select[multiple]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group select option {
    padding: 8px;
    border-radius: 5px;
    margin: 2px 0;
}

.form-group select option:checked {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.form-actions button {
    padding: 14px 30px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-next,
.btn-generate {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-next:hover,
.btn-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-prev {
    background: #e9ecef;
    color: #495057;
}

.btn-prev:hover {
    background: #dee2e6;
    transform: translateY(-2px);
}

.btn-save {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.btn-save:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.btn-share {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(23, 162, 184, 0.3);
}

.btn-share:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(23, 162, 184, 0.4);
}

.btn-reset {
    background: #6c757d;
    color: white;
}

.btn-reset:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

/* Build Results */
#build-results {
    margin: 2rem 0;
}

.build-result-card {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border: 2px solid #667eea;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 20px;
}

.build-result-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.build-result-icon {
    font-size: 3rem;
}

.build-result-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 5px;
}

.build-result-subtitle {
    font-size: 1rem;
    color: #6c757d;
}

.build-section {
    margin-bottom: 25px;
}

.build-section-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #2c3e50;
    display: flex;
    align-items: center;
    gap: 10px;
}

.build-item {
    background: white;
    border-left: 4px solid #667eea;
    padding: 15px 20px;
    margin-bottom: 12px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.build-item-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: #2c3e50;
    margin-bottom: 5px;
}

.build-item-desc {
    color: #6c757d;
    font-size: 0.95rem;
    line-height: 1.6;
}

.build-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.stat-item {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.stat-label {
    font-size: 0.85rem;
    color: #6c757d;
    margin-bottom: 5px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
}

.tier-badge {
    display: inline-block;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-left: 10px;
}

.tier-s {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    color: #000;
}

.tier-a {
    background: linear-gradient(135deg, #ff6b6b 0%, #ff8787 100%);
    color: white;
}

.tier-b {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a39f 100%);
    color: white;
}

.tier-c {
    background: linear-gradient(135deg, #95afc0 0%, #778ca3 100%);
    color: white;
}

/* Features Section */
.features-section {
    padding: 60px 20px;
    background: white;
}

.features-section .section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 15px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 15px;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #2c3e50;
}

.feature-desc {
    font-size: 0.95rem;
    color: #6c757d;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .step-indicator {
        padding: 0 10px;
    }

    .step-line {
        width: 40px;
        margin: 0 5px;
    }

    .step-label {
        font-size: 0.75rem;
    }

    .form-container {
        padding: 25px 20px;
    }

    .step-title {
        font-size: 1.5rem;
    }

    .radio-group,
    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions button {
        width: 100%;
    }

    .features-section .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 60px 15px 40px;
    }

    .optimizer-section {
        padding: 40px 15px;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .step-line {
        width: 30px;
    }
}