/* General */
body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: #121212;
    color: #f5f5f5;
}

nav {
    background-color: #1c1c1c;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav h1 {
    color: #f44336;
    margin: 0;
}

nav a {
    margin-left: auto;
    color: #f5f5f5;
    text-decoration: none;
    background-color: #f44336;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: background 0.3s ease;
}

nav a:hover {
    background-color: #d32f2f;
}




/* Contenedor general */
.contenedor {
    max-width: 1000px;
    margin: auto;
    padding: 2rem;
}

/* Sección Intro */
section.intro {
    text-align: center;
    margin-bottom: 2rem;
}

section.intro h2 {
    font-size: 2rem;
    color: #e0e0e0;
}

section.intro p {
    color: #aaa;
}

/* Crear tema */
.crear-tema form {
    background-color: #1e1e1e;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(255, 69, 58, 0.2);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.crear-tema input,
.crear-tema textarea {
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    background-color: #2a2a2a;
    color: #fff;
    font-size: 1rem;
}

.crear-tema input::placeholder,
.crear-tema textarea::placeholder {
    color: #777;
}

.crear-tema button {
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    background-color: #f44336;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.crear-tema button:hover {
    background-color: #d32f2f;
}

/* Lista de temas */
.temas-recientes ul {
    list-style: none;
    padding: 0;
}

.temas-recientes li {
    background-color: #1c1c1c;
    border-left: 5px solid #f44336;
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 10px;
}
/* Contenedor principal */
.auth-container {
    min-height: 100vh;
    background: #121212;
    /* oscuro, para no usar blanco */
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    color: #f5f5f5;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.auth-box {
    background: #1c1c1c;
    border-radius: 12px;
    padding: 2rem 3rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.7);
}

/* Toggle botones */
.auth-toggle {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.auth-toggle button {
    flex: 1;
    padding: 0.75rem;
    background: #333;
    color: #f44336;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.3s ease;
}

.auth-toggle button.active,
.auth-toggle button:hover {
    background: #f44336;
    color: #fff;
}

/* Formularios */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auth-form.hidden {
    display: none;
}

.auth-form h2 {
    margin-bottom: 1rem;
    color: #f44336;
}

.auth-form label {
    font-size: 0.9rem;
    color: #ddd;
}

.auth-form input {
    padding: 0.75rem;
    border-radius: 8px;
    border: none;
    outline: none;
    font-size: 1rem;
    background: #333;
    color: #fff;
    transition: background 0.3s ease;
}

.auth-form input:focus {
    background: #444;
}

.btn-submit {
    margin-top: 1rem;
    background-color: #f44336;
    color: white;
    border: none;
    padding: 0.9rem;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-submit:hover {
    background-color: #d32f2f;
}

/* Responsive */
@media (max-width: 480px) {
    .auth-box {
        padding: 1.5rem;
        max-width: 90vw;
    }
}

/* Footer */
footer {
    background-color: #1c1c1c;
    color: #888;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .contenedor {
        padding: 1rem;
    }

    header {
        flex-direction: column;
        gap: 1rem;
    }

    section.intro h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .crear-tema form {
        padding: 1rem;
    }

    .crear-tema input,
    .crear-tema textarea,
    .crear-tema button {
        font-size: 0.9rem;
    }

    footer {
        font-size: 0.8rem;
    }
}