:root {
    --primary: #0055A2;
    --primary-dark: #0055A2;
    --background: white;
    --text: #1b1b1b;
    --light: #ffffff;
    --gray: #cccccc;
    --radius: 1rem;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text);
    max-width: 480px;
    margin: auto;
}

.tab-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--gray);
}

.tab-button {
    flex: 1;
    text-align: center;
    padding: 0.5rem 0;
    font-size: 0.85rem;
    color: var(--primary-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.tab-button.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    font-weight: 600;
}

.tab-button i {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

main {
    padding: 2rem 1rem 6rem;
}

.login-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
    width: 100%;
}

.login-container input {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--gray);
    border-radius: var(--radius);
    font-size: 1rem;
}

.login-container button {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    cursor: pointer;
    font-weight: 600;
}

.login-container h2 {
    text-align: center;
    margin: 20px 0;
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-dark);
    background: linear-gradient(45deg, var(--primary), #007bff);
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.banner {
    background-color: var(--primary);
    color: white;
    padding: 1.5rem;
    border-radius: var(--radius);
    margin: 1rem 0;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-dialog {
    max-width: 90vw;
    margin: 1rem auto;
}

.modal-content {
    border-radius: var(--radius);
    background-color: var(--light);
    border: 1px solid var(--gray);
}

.modal-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--gray);
}

.modal-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

.modal-body {
    padding: 1rem;
}

.modal-body .form-group {
    margin-bottom: 1rem;
}

.modal-body label {
    font-size: 0.9rem;
    color: var(--text);
}

.modal-body input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray);
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.modal-footer {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--gray);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.modal-footer .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    border-radius: var(--radius);
    font-weight: 600;
}

.modal-footer .btn-secondary {
    background-color: var(--gray);
    border: none;
    color: var(--text);
}

.modal-footer .btn-primary {
    background-color: var(--primary);
    border: none;
    color: var(--light);
}

.modal-dialog-centered {
    min-height: calc(100vh - 2rem);
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 576px) {
    .modal-dialog {
        max-width: 95vw;
        margin: 0.5rem auto;
    }

    .modal-title {
        font-size: 0.9rem;
    }

    .modal-body input {
        font-size: 0.85rem;
        padding: 0.65rem;
    }

    .modal-footer .btn {
        padding: 0.65rem 1.25rem;
        font-size: 0.85rem;
    }
}

.logo {
    border-radius: 10px;
    display: block;
    margin: 0 auto 20px auto;
    max-width: 100%;
    height: auto;
}