:root {
    --primary: #10b531;
    --primary-dark: #0d9428;
    --white: #FFFFFF;
    --bg-light: #f8f9fc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    overflow: hidden;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: 
        linear-gradient(135deg, rgba(16, 181, 49, 0.15) 0%, rgba(13, 148, 40, 0.25) 100%),
        url('../images/login_bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 20px;
    position: relative;
}

.login-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.08;
}

.circle-1 {
    width: 400px;
    height: 400px;
    top: -200px;
    right: -100px;
}

.circle-2 {
    width: 300px;
    height: 300px;
    bottom: -150px;
    left: -150px;
}

.circle-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    right: 10%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.login-box {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 50px 40px;
    width: 100%;
    max-width: 450px;
    z-index: 1;
    position: relative;
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-logo {
    max-width: 150px;
    height: auto;
    margin-bottom: 20px;
}

.login-header h1 {
    font-size: 2.25rem;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-weight: 700;
}

.login-header p {
    color: var(--primary);
    font-size: 1rem;
    font-weight: 500;
}

.login-form {
    width: 100%;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-error {
    background-color: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

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

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    background-color: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(16, 181, 49, 0.1);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 0.85rem;
}

.checkbox-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--text-secondary);
}

.checkbox-container input {
    margin-right: 8px;
    cursor: pointer;
}

.forgot-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.forgot-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.btn {
    width: 100%;
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: block;
    text-align: center;
}

.btn-login {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-back {
    background-color: var(--white);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-back:hover {
    background-color: var(--bg-light);
}

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

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--light-gray);
}

.divider span {
    position: relative;
    background-color: var(--white);
    padding: 0 15px;
    color: #999;
    font-size: 0.9rem;
}

.login-footer {
    margin-top: 30px;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--light-gray);
}

.login-footer p {
    color: #999;
    font-size: 0.85rem;
}

@media (max-width: 576px) {
    .login-box {
        padding: 40px 30px;
    }

    .login-header h1 {
        font-size: 2rem;
    }

    .form-options {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
}