/* assets/style.css - Professional & Fully Responsive */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #0056b3;
    --secondary-color: #007bff;
    --background-color: #f0f4f8;
    --white-color: #ffffff;
    --text-color: #333;
    --border-color: #dde4ec;
    --error-bg-color: #f8d7da;
    --error-text-color: #721c24;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.login-wrapper {
    display: flex;
    width: 950px;
    max-width: 100%;
    min-height: 620px;
    background-color: var(--white-color);
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    overflow: hidden;
    transition: all 0.3s ease-in-out;
}

.login-branding {
    background: linear-gradient(145deg, var(--secondary-color), var(--primary-color));
    color: var(--white-color);
    width: 45%;
    padding: 50px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.logo {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 5px solid rgba(255, 255, 255, 0.8);
    margin-bottom: 25px;
    background-color: #fff;
    padding: 5px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    object-fit: contain;
}

.school-name {
    font-size: 26px;
    margin: 0;
    font-weight: 700;
}

.school-address {
    font-size: 15px;
    margin: 5px 0 25px 0;
    opacity: 0.9;
}

.system-title-container {
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    padding-top: 25px;
    margin-top: 25px;
    width: 100%;
}

.system-title {
    font-size: 20px;
    font-weight: 500;
    margin: 0;
}

.login-form-container {
    width: 55%;
    padding: 50px 45px;
    display: flex;
    flex-direction: column;
}

.login-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 35px;
}

.tab-link {
    background: none;
    border: none;
    padding: 12px 25px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    color: #888;
    position: relative;
    transition: color 0.3s;
}

.tab-link.active {
    color: var(--primary-color);
}

.tab-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px 3px 0 0;
}

.login-form {
    display: none;
    flex-direction: column;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-form.active {
    display: flex;
}

.form-group {
    margin-bottom: 22px;
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
}

.form-group-row {
    display: flex;
    gap: 15px;
    width: 100%;
}

.btn-login {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: var(--white-color);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.3s;
    margin-top: 15px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 20px rgba(0, 91, 179, 0.3);
}

.error-message {
    background-color: var(--error-bg-color);
    color: var(--error-text-color);
    border: 1px solid #f5c6cb;
    padding: 12px 18px;
    border-radius: 8px;
    margin-bottom: 25px;
    text-align: center;
    font-size: 14px;
    animation: fadeIn 0.3s;
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 950px) {
    .login-wrapper {
        flex-direction: column;
        min-height: auto;
    }

    .login-branding, .login-form-container {
        width: 100%;
    }
    
    .login-branding {
        padding: 40px 20px;
        border-radius: 20px 20px 0 0;
    }
    
    .login-form-container {
        padding: 40px 30px;
    }
}

@media (max-width: 500px) {
    body {
        padding: 10px;
    }

    .login-form-container {
        padding: 30px 20px;
    }

    .form-group-row {
        flex-direction: column;
        gap: 0;
    }

    .form-group {
        margin-bottom: 18px;
    }

    .tab-link {
        padding: 10px 15px;
        font-size: 15px;
    }
}