* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    z-index: 0;
}

.login-container {
    width: 100%;
    max-width: 1200px;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.login-wrapper {
    display: flex;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    min-height: 600px;
}

.login-header {
    flex: 1;
    background: linear-gradient(135deg, #1E88E5 0%, #1565C0 100%);
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
}

.login-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg"><circle cx="100" cy="100" r="80" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="2"/><circle cx="100" cy="100" r="60" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="2"/><circle cx="100" cy="100" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="2"/></svg>');
    opacity: 0.5;
}

.school-logo {
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.login-header h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 16px;
    opacity: 0.95;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.login-box {
    flex: 1;
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-box form {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 600;
    font-size: 14px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    z-index: 1;
    pointer-events: none;
}

.form-group input {
    width: 100%;
    height: 50px;
    padding: 0 16px 0 48px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus {
    border-color: #1E88E5;
    outline: none;
    background: white;
    box-shadow: 0 0 0 4px rgba(30, 136, 229, 0.1);
}

.form-group input::placeholder {
    color: #999;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: #666;
}

.remember-me input {
    width: auto;
    height: auto;
    margin-right: 8px;
    cursor: pointer;
}

.forgot-password {
    color: #1E88E5;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.forgot-password:hover {
    color: #1565C0;
    text-decoration: underline;
}

.login-button {
    width: 100%;
    height: 50px;
    background: linear-gradient(135deg, #1E88E5 0%, #1565C0 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(30, 136, 229, 0.4);
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 136, 229, 0.5);
}

.login-button:active {
    transform: translateY(0);
}

.login-button svg {
    transition: transform 0.3s;
}

.login-button:hover svg {
    transform: translateX(4px);
}

.login-footer {
    margin-top: 40px;
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
}

.login-footer p {
    font-size: 12px;
    color: #999;
    line-height: 1.6;
}

.error-message {
    background: #ffebee;
    color: #c62828;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    border-left: 4px solid #c62828;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-message::before {
    content: '⚠';
    font-size: 18px;
}

@media (max-width: 968px) {
    .login-wrapper {
        flex-direction: column;
    }
    
    .login-header {
        padding: 40px 30px;
    }
    
    .login-box {
        padding: 40px 30px;
    }
    
    .login-header h1 {
        font-size: 24px;
    }
    
    .subtitle {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 10px;
    }
    
    .login-wrapper {
        border-radius: 12px;
    }
    
    .login-header {
        padding: 30px 20px;
    }
    
    .login-box {
        padding: 30px 20px;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}