/* How It Works Section Styles */
#how-it-works {
    padding: var(--spacing-24) 0;
    background: var(--gray-50);
    position: relative;
}

.how-it-works-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.how-it-works-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.how-it-works-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--bg-orange-100);
    color: var(--primary-orange);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    border: 1px solid var(--primary-orange-light);
}

.how-it-works-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    color: var(--gray-900);
}

.how-it-works-description {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.step-section {
    padding: var(--spacing-20) 0;
    border-bottom: 1px solid var(--gray-200);
}

.step-section:last-child {
    border-bottom: none;
}

.step-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
    min-height: 500px;
}

.step-grid.reverse {
    grid-template-columns: 1fr 1fr;
}

.step-grid.reverse .step-content {
    order: 2;
}

.step-grid.reverse .step-visual {
    order: 1;
}

.step-content {
    padding: var(--spacing-8);
}

.step-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-8);
}

.step-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    position: relative;
    transition: all 0.3s ease;
    text-align: center;
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-orange-light);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-orange), var(--secondary-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0 auto var(--spacing-6);
    box-shadow: var(--shadow-md);
    position: relative;
}

.step-number::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--primary-orange-light);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.step-card:hover .step-number::before {
    opacity: 1;
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--gray-900);
}

.step-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-6);
}

.step-features {
    list-style: none;
    padding: 0;
    text-align: left;
}

.step-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
    color: var(--gray-700);
    font-size: var(--font-size-sm);
}

.step-features li::before {
    content: '✓';
    width: 20px;
    height: 20px;
    background: var(--primary-orange);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

/* Process Flow */
.process-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-4);
    margin: var(--spacing-16) 0;
    flex-wrap: wrap;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.process-step-icon {
    width: 80px;
    height: 80px;
    background: var(--white);
    border: 3px solid var(--primary-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-orange);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.process-step:hover .process-step-icon {
    background: var(--primary-orange);
    color: var(--white);
    transform: scale(1.1);
}

.process-step-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
}

.process-step-description {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    max-width: 200px;
}

.process-arrow {
    color: var(--primary-orange);
    font-size: var(--font-size-2xl);
    margin: 0 var(--spacing-4);
    opacity: 0.6;
}

/* Step Mockups */
.step-mockup {
    width: 100%;
    max-width: 400px;
}

.setup-interface {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.interface-header {
    text-align: center;
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.interface-header h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.interface-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input {
    padding: var(--spacing-3);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: var(--gray-50);
}

/* Share Interface */
.share-interface {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-6);
}

.qr-display-large {
    width: 150px;
    height: 150px;
    background: var(--white);
    border: 3px solid var(--primary-orange);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.qr-pattern-large {
    width: 120px;
    height: 120px;
    background: 
        linear-gradient(45deg, var(--gray-900) 25%, transparent 25%),
        linear-gradient(-45deg, var(--gray-900) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--gray-900) 75%),
        linear-gradient(-45deg, transparent 75%, var(--gray-900) 75%);
    background-size: 15px 15px;
    background-position: 0 0, 0 7.5px, 7.5px -7.5px, -7.5px 0px;
    border-radius: var(--radius-sm);
}

.share-options {
    display: flex;
    gap: var(--spacing-3);
    flex-wrap: wrap;
    justify-content: center;
}

.share-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.3s ease;
}

.share-btn:hover {
    background: var(--primary-orange);
    color: var(--white);
    border-color: var(--primary-orange);
}

/* Collect Interface */
.collect-interface {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-6);
}

.scanner-mockup {
    width: 200px;
    height: 150px;
    background: var(--gray-900);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    position: relative;
    overflow: hidden;
}

.scanner-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.scan-line {
    width: 100%;
    height: 2px;
    background: var(--primary-orange);
    position: absolute;
    animation: scan 2s linear infinite;
}

@keyframes scan {
    0% { top: 0; }
    100% { top: 100%; }
}

.scan-text {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
}

.stamp-collected {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    background: var(--primary-orange);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    animation: pulse 1s ease-in-out;
}

.stamp-collected i {
    font-size: var(--font-size-lg);
}

/* Reward Interface */
.reward-interface {
    display: flex;
    justify-content: center;
    align-items: center;
}

.reward-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    width: 100%;
    max-width: 300px;
}

.reward-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-orange), var(--secondary-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xl);
}

.reward-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-1);
}

.reward-content p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-bottom: var(--spacing-3);
}

.reward-content .btn {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
}

/* Demo Section */
.demo-section {
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-12);
    text-align: center;
    box-shadow: var(--shadow-lg);
    margin-top: var(--spacing-16);
    position: relative;
    overflow: hidden;
}

.demo-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-orange), var(--secondary-orange));
}

.demo-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    color: var(--gray-900);
}

.demo-description {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.demo-video {
    width: 100%;
    max-width: 800px;
    height: 450px;
    background: var(--gray-100);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-8);
    position: relative;
    overflow: hidden;
}

.demo-video-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-4);
    color: var(--gray-500);
}

.demo-video-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    transition: all 0.3s ease;
}

.demo-video-icon:hover {
    transform: scale(1.1);
    background: var(--primary-orange-dark);
}

.demo-video-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* Background Decoration */
.how-it-works-bg-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.how-it-works-bg-shape {
    position: absolute;
    background: linear-gradient(135deg, var(--primary-orange-light), var(--secondary-orange));
    opacity: 0.05;
    border-radius: 50%;
}

.how-it-works-bg-shape:nth-child(1) {
    width: 300px;
    height: 300px;
    top: 20%;
    right: -150px;
}

.how-it-works-bg-shape:nth-child(2) {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: -100px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .steps-container {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-6);
    }
    
    .process-flow {
        flex-direction: column;
        gap: var(--spacing-8);
    }
    
    .process-arrow {
        transform: rotate(90deg);
        margin: var(--spacing-2) 0;
    }
}

@media (max-width: 768px) {
    .how-it-works-container {
        padding: 0 var(--spacing-3);
    }
    
    .how-it-works-title {
        font-size: var(--font-size-3xl);
    }
    
    .how-it-works-description {
        font-size: var(--font-size-lg);
    }
    
    .steps-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .step-card {
        padding: var(--spacing-6);
    }
    
    .demo-section {
        padding: var(--spacing-8);
    }
    
    .demo-title {
        font-size: var(--font-size-2xl);
    }
    
    .demo-description {
        font-size: var(--font-size-base);
    }
    
    .demo-video {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .how-it-works-title {
        font-size: var(--font-size-2xl);
    }
    
    .how-it-works-description {
        font-size: var(--font-size-base);
    }
    
    .step-card {
        padding: var(--spacing-4);
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    .process-step-icon {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-xl);
    }
    
    .demo-section {
        padding: var(--spacing-6);
    }
    
    .demo-video {
        height: 250px;
    }
}