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

body {
    background-color: #f0f2f5; /* Nền xám bao quanh thẻ */
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 500px;
    width: 100%;
}

.meta-card {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 40px;
    text-align: center;
}

/* Logo & Tiêu đề */
.meta-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

.meta-logo svg {
    width: 44px;
    height: 44px;
}

.meta-title {
    font-size: 22px;
    font-weight: 700;
    color: #1c1e21;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Icon Tick Xanh tròn */
.verified-badge {
    background-color: #1877f2; /* Màu xanh dương */
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Khung cảnh báo màu xám */
.alert-box {
    background-color: #f7f8fa;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
    text-align: center;
}

.alert-title {
    font-size: 16px;
    font-weight: 600;
    color: #1c1e21;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 8px;
}

.alert-icon {
    color: #fa383e;
    font-size: 18px;
}

.alert-subtitle {
    font-size: 14px;
    color: #1c1e21;
    margin-bottom: 6px;
}

.alert-date {
    font-size: 12px;
    color: #65676b;
}

/* Phần nội dung chữ */
.text-section {
    text-align: left;
    margin-bottom: 20px;
}

.text-section h3 {
    font-size: 15px;
    font-weight: 700;
    color: #1c1e21;
    margin-bottom: 6px;
}

.text-section p {
    font-size: 14px;
    color: #1c1e21;
    line-height: 1.5;
}

/* Nút bấm xanh */
.btn-disagree {
    width: 100%;
    padding: 14px;
    background-color: #1877f2; /* Xanh Facebook */
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 10px;
    margin-bottom: 24px;
}

.btn-disagree:hover {
    background-color: #166fe5;
}

/* Footer của thẻ */
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #e4e6eb;
    padding-top: 16px;
    font-size: 11px;
    color: #8a8d91;
}

.footer-left strong {
    color: #1c1e21;
}

/* FORM ĐĂNG NHẬP (Khối 2) */
.login-header {
    margin-bottom: 24px;
}

.meta-logo-small svg {
    width: 36px;
    height: 36px;
    margin-bottom: 10px;
}

.login-header h2 {
    font-size: 20px;
    color: #1c1e21;
    margin-bottom: 6px;
}

.login-header p {
    font-size: 14px;
    color: #65676b;
}

.login-body {
    text-align: left;
}

.input-group {
    margin-bottom: 12px;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    border: 1px solid #dddfe2;
    border-radius: 6px;
    outline: none;
    color: #1d2129;
    transition: border-color 0.2s;
    background-color: #ffffff;
}

.input-group input:focus {
    border-color: #1877f2;
    box-shadow: 0 0 0 2px #e7f3ff;
}

.btn-verify {
    width: 100%;
    padding: 12px;
    background-color: #1877f2;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 8px;
}

.btn-verify:hover { background-color: #166fe5; }
.btn-verify:disabled { background-color: #bcc0c4; cursor: not-allowed; }

.message { text-align: center; font-size: 14px; margin-top: 16px; font-weight: 500; }
.message.error { color: #fa383e; }
.message.success { color: #28a745; }

/* Class ẩn/hiện */
.hidden {
    display: none !important;
}
/* CSS MỚI CHO FORM ĐIỀN THÔNG TIN */
.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.form-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: #1c1e21;
}

.btn-close {
    background: none;
    border: none;
    font-size: 18px;
    color: #65676b;
    cursor: pointer;
    padding: 4px;
}

.btn-close:hover {
    color: #1c1e21;
}

.input-group input, 
.input-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 1px solid #ccd0d5;
    border-radius: 10px; /* Bo tròn giống ảnh */
    outline: none;
    color: #1d2129;
    background-color: #ffffff;
    font-family: inherit;
}

.input-group textarea {
    resize: vertical;
}

.input-group input:focus, 
.input-group textarea:focus {
    border-color: #1877f2;
}

/* Số điện thoại có cờ */
.phone-group {
    display: flex;
}

.country-code {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 12px;
    border: 1px solid #ccd0d5;
    border-right: none;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    background-color: #fff;
    font-size: 15px;
    color: #1c1e21;
}

.country-code img {
    width: 18px;
}

.country-code .arrow {
    font-size: 10px;
    color: #65676b;
}

/* Ngày sinh */
.dob-label {
    font-size: 14px;
    color: #65676b;
    margin: 12px 0 8px 0;
    font-weight: 600;
}

.dob-group {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
}

.dob-group input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid #ccd0d5;
    border-radius: 10px;
    font-size: 15px;
    outline: none;
}

/* Ghi chú */
.response-time {
    font-size: 13px;
    color: #65676b;
    margin: 10px 0 16px 0;
}

/* Checkbox Điều khoản */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #1c1e21;
    margin-bottom: 20px;
    cursor: pointer;
}

.checkbox-group input {
    width: 18px;
    height: 18px;
    accent-color: #1877f2;
    cursor: pointer;
}

.terms-link {
    color: #1877f2;
    text-decoration: none;
}

/* Nút Send */
.btn-send {
    width: 100%;
    padding: 14px;
    background-color: #0064e0; /* Màu xanh giống ảnh */
    color: #ffffff;
    border: none;
    border-radius: 24px; /* Bo tròn hoàn toàn */
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-send:hover {
    background-color: #0052b4;
}

.btn-send:disabled {
    background-color: #bcc0c4;
    cursor: not-allowed;
}