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

body {
    background-color: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    display: flex;
    width: 1100px;
    height: 750px;
    background: #fff;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

/* PHẦN FORM BÊN TRÁI */
.signup-section {
    flex: 1;
    padding: 30px 60px;
    display: flex;
    flex-direction: column;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: #1a4a8e;
    margin-bottom: 20px;
}

.logo-img { width: 32px; }

.form-wrapper h1 {
    font-size: 2rem;
    color: #111;
    margin-bottom: 5px;
}

.subtitle {
    color: #888;
    font-size: 0.90rem;
    margin-bottom: 20px;
}

.input-group {
    position: relative;
    margin-bottom: 25px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 10px 15px;
    transition: all 0.3s;
}

.input-group.active, .input-group:focus-within {
    border-color: #4285f4;
    box-shadow: 0 0 0 1px #4285f4;
}

.input-group label {
    position: absolute;
    top: -10px;
    left: 15px;
    background: white;
    padding: 0 6px;
    font-size: 0.8rem;
    color: #777;
    font-weight: 500;
}

.input-group.active label, .input-group:focus-within label {
    color: #4285f4;
}

.input-group input {
    width: 100%;
    border: none;
    outline: none;
    font-size: 1rem;
    color: #333;
    background: transparent;
    padding-top: 5px;
}

.input-with-icon {
    display: flex;
    align-items: center;
}

.input-with-icon i {
    color: #999;
    margin-right: 10px;
    font-size: 1.1rem;
}

.input-with-icon input { flex: 1; }

#togglePassword {
    margin-right: 0;
    margin-left: 10px;
    cursor: pointer;
}

.btn-signup {
    width: 100%;
    padding: 14px;
    background: #3b82f6;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
    transition: background 0.3s;
}

.btn-signup:hover { background: #2563eb; }

.divider {
    text-align: center;
    margin: 25px 0;
    position: relative;
}

.divider::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 1px;
    background: #eee;
    left: 0; top: 50%;
}

.divider span {
    background: #fff;
    padding: 0 15px;
    position: relative;
    color: #aaa;
    font-size: 0.9rem;
}

.btn-google {
    width: 100%;
    padding: 12px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    color: #444;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-google:hover { background: #f9f9f9; }

.btn-google img { width: 20px; }

.footer-text {
    text-align: center;
    margin-top: 30px;
    color: #666;
    font-size: 0.9rem;
}

.footer-text a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 600;
}

.banner-section {
    flex: 1.1;
    overflow: hidden;
}

.banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}