* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: #ffffff;
    height: 100vh;
    overflow: hidden;
    color: #1c1e21;
}

/* Screen Management */
.screen {
    display: none;
    height: 100vh;
    width: 100vw;
    position: absolute;
    top: 0;
    left: 0;
    background: #fff;
    flex-direction: column;
}

.screen.active {
    display: flex;
}

/* --- SCREEN 1: Loading --- */
#screen-loading {
    justify-content: center;
    align-items: center;
}

.footer-content {
    position: absolute;
    bottom: 50px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.from-text {
    color: #65676B;
    font-size: 14px;
    margin-bottom: 5px;
}

/* --- SCREEN 2: Verify Identity --- */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid #e4e6eb;
}

.top-bar h2 {
    font-size: 16px;
    font-weight: 600;
}

.content {
    padding: 30px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.blue-circle {
    background-color: #1877F2;
}

.title {
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    line-height: 1.3;
}

.subtitle {
    font-size: 15px;
    color: #65676B;
    text-align: center;
    line-height: 1.4;
    /* margin-bottom: 30px; */
}

.upload-option {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-top: 1px solid #e4e6eb;
    border-bottom: 1px solid #e4e6eb;
    cursor: pointer;
}

.option-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.option-text h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.option-text p {
    font-size: 13px;
    color: #65676B;
}

.radio-btn {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid #ccd0d5;
}

/* --- SCREEN 3: Error --- */
#screen-error {
    justify-content: space-between;
}

.error-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 32px;
}

.icon-warning {
    margin-bottom: 20px;
}

.warning-text {
    margin-top: 16px;
}

.bottom-action {
    padding: 16px 24px 34px 24px;
}

#close-btn {
    width: 100%;
    background-color: #1877F2;
    color: white;
    border: none;
    border-radius: 8px;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

#close-btn:active {
    background-color: #166fe5;
}