:root {
    --primary-color: #6B46C1;
    --secondary-color: #4FD1C5;
    --tertiary-color: #F687B3;
    --hover-color: #553C9A;
    --error-color: #dc3545;
    --text-color: #4A5568;
    --border-color: #E2E8F0;
    --white: #ffffff;
    --shadow-color: rgba(107, 70, 193, 0.1);
    --google-red: #db4437;
    --google-red-hover: #c53929;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #F7FAFC;
    padding-top: 60px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    box-shadow: 0 2px 15px var(--shadow-color);
    z-index: 1000;
}

.navbar-logo img {
    height: 40px;
    width: auto;
}

.navbar-signup,
.navbar-login {
    border-radius: 25px;
    padding: 10px 25px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.navbar-signup {
    background-color: var(--primary-color);
    color: var(--white) !important;
}

.navbar-signup:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(107, 70, 193, 0.3);
}

.navbar-login {
    background-color: var(--secondary-color);
    color: var(--white) !important;
}

.navbar-login:hover {
    background-color: #38B2AC;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 209, 197, 0.3);
}

.login-container,
.register-container {
    background-color: var(--white);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 10px 25px var(--shadow-color);
    width: min(500px, 90%);
    margin: 80px auto 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(107, 70, 193, 0.1);
}

.login-container:hover,
.register-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px var(--shadow-color);
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-control {
    border-radius: 25px;
    padding: 12px 15px 12px 45px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    width: 100%;
    font-size: 1rem;
    color: var(--text-color);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(107, 70, 193, 0.15);
    outline: none;
}

.form-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-color);
    transition: color 0.3s ease;
}

.form-control:focus + .form-icon {
    color: var(--primary-color);
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--text-color);
    transition: color 0.3s ease;
    padding: 5px;
}

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

.custom-control-label {
    color: var(--text-color);
    cursor: pointer;
}

.custom-control-label a {
    color: var(--primary-color);
    text-decoration: none;
}

.custom-control-label a:hover {
    text-decoration: underline;
}

.btn {
    border-radius: 25px;
    padding: 12px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    width: 100%;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--hover-color));
    color: var(--white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--hover-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(107, 70, 193, 0.3);
}

.btn-google {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    color: var(--text-color);
}

.btn-google:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--tertiary-color);
    color: var(--tertiary-color);
}

.text-danger {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    padding-left: 1rem;
}

#loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(107, 70, 193, 0.2);
}

.spinner-border {
    width: 3rem;
    height: 3rem;
    color: var(--primary-color);
}

.forgot-password {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
    display: inline-block;
    padding: 5px 10px;
    border-radius: 15px;
}

.forgot-password:hover {
    color: var(--primary-color);
    background-color: rgba(107, 70, 193, 0.05);
}

/* Custom checkbox styles */
.custom-control-input:checked ~ .custom-control-label::before {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.custom-control-input:focus ~ .custom-control-label::before {
    box-shadow: 0 0 0 0.2rem rgba(107, 70, 193, 0.25);
}

/* Responsive styles */
@media (max-width: 576px) {
    .login-container,
    .register-container {
        padding: 1.5rem;
        margin: 60px 1rem;
    }

    .navbar {
        padding: 0 10px;
    }

    .navbar-logo img {
        height: 30px;
    }

    .navbar-signup,
    .navbar-login {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
}