@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #D81B60;
    --primary-hover: #ad144d;
    --secondary-color: #FF00CC;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-color: #333;
    --text-muted: #666;
    --border-radius: 16px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Sarabun', sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    overflow: hidden;
}

.login-container {
    display: flex;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    width: 900px;
    max-width: 95%;
    min-height: 550px;
    position: relative;
    backdrop-filter: blur(10px);
}

.login-info {
    flex: 1;
    background: linear-gradient(135deg, #D81B60 0%, #FF00CC 100%);
    color: white;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-info::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.login-info h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.login-info h4 {
    font-size: 1.2rem;
    font-weight: 400;
    margin: 5px 0;
    z-index: 1;
    opacity: 0.9;
}

.login-form-wrap {
    flex: 1;
    padding: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: white;
}

.login-header {
    margin-bottom: 30px;
    text-align: center;
}

.login-header h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #eee;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: 'Sarabun', sans-serif;
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(216, 27, 96, 0.1);
}

.form-label {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    padding: 0 5px;
    color: #999;
    transition: all 0.3s ease;
    pointer-events: none;
}

.form-control:focus + .form-label,
.form-control:not(:placeholder-shown) + .form-label {
    top: 0;
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(216, 27, 96, 0.2);
}

.btn-login:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(216, 27, 96, 0.3);
}

.btn-login:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.forgot-password {
    text-align: center;
    margin-top: 20px;
}

.forgot-password a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.forgot-password a:hover {
    color: var(--primary-color);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .login-container {
        flex-direction: column;
        width: 100%;
        height: 100vh;
        border-radius: 0;
    }

    .login-info {
        padding: 30px 20px;
        flex: 0 0 auto;
        min-height: 200px;
    }

    .login-form-wrap {
        padding: 30px 20px;
        border-radius: 20px 20px 0 0;
        margin-top: -20px;
        position: relative;
        z-index: 2;
    }
}