.animation-box {
    background: #16213e;
    padding: 30px;
    border-radius: 20px;
    margin-top: 20px;
}

.step {
    padding: 14px;
    margin: 12px 0;
    border-radius: 10px;
    background: #243b5a;
    opacity: 0.4;
    transition: all 0.4s ease;
}

.step.active {
    opacity: 1;
    background: #00e5ff;
    color: black;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 24px;
}

.nav-links a {
    color: white;
    text-decoration: none;
}

.section-container {
    padding: 50px;
}

.section-header {
    margin-bottom: 30px;
}

.upload-zone {
    border: 2px dashed cyan;
    border-radius: 20px;
    padding: 60px;
    text-align: center;
    cursor: pointer;
    transition: 0.3s;
    background: #111827;
}

.upload-zone:hover {
    background: #172554;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.upload-text h3 {
    margin-bottom: 10px;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    padding: 20px;
}

.modal-backdrop.active {
    display: flex;
}

.modal {
    width: min(800px, 90vw);
    background: #0f172a;
    border-radius: 24px;
    padding: 30px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.15);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25px;
}

.close-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
}

.process-flow {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25px;
    gap: 15px;
}

.process-stage {
    flex: 1;
    background: #1e293b;
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    opacity: 0.4;
    transition: 0.3s;
}

.progress-bar {
    width: 100%;
    height: 14px;
    background: #243b5a;
    border-radius: 10px;
    margin-top: 20px;
    overflow: hidden;
    margin: 20px 0;
}

.progress-fill {
    width: 0%;
    height: 100%;
    background: #00e5ff;
    transition: width 1s linear;
}