/* ===== PALETA DE COLORES ROVERLAP ===== */
:root {
    --color-negro: #000000;
    --color-azul-oscuro: #2C3E50;
    --color-gris-oscuro: #2A2A3A;
    --color-azul-moscuro: #1A1A2E;
    --color-gris-claro: #555555;
    --color-oro: #FFD700;
    --color-blanco: #FFFFFF;
    --color-gainsboro: #DCDCDC;
}

/* ===== RESET Y ESTILOS BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--color-negro);
    color: var(--color-gainsboro);
    min-height: 100vh;
}

/* ===== CONTENEDORES PRINCIPALES ===== */
.container {
    background: var(--color-azul-moscuro);
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    border: 2px solid var(--color-oro);
    overflow: hidden;
}

.content {
    padding: 30px;
    background: var(--color-azul-moscuro);
}

/* ===== HEADERS ===== */
.header {
    background: var(--color-azul-oscuro);
    color: var(--color-oro);
    padding: 30px;
    text-align: center;
    border-bottom: 2px solid var(--color-oro);
}

.header h1 {
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: bold;
}

.header p {
    font-size: 14px;
    opacity: 0.9;
    color: var(--color-gainsboro);
}

h2, h3, h4 {
    color: var(--color-oro);
}

/* ===== FORMULARIOS ===== */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--color-gainsboro);
    font-weight: 500;
}

input,
textarea,
select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--color-gris-oscuro);
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.3s;
    background: var(--color-gris-oscuro);
    color: var(--color-oro);
    font-weight: 500;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-oro);
    background: var(--color-gris-oscuro);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

input::placeholder,
textarea::placeholder {
    color: var(--color-gris-claro);
}

/* Mejorar legibilidad de selectores */
select {
    color: var(--color-oro);
}

select option {
    background: var(--color-gris-oscuro);
    color: var(--color-oro);
}

/* ===== BOTONES ===== */
button {
    width: 100%;
    padding: 14px;
    background: var(--color-gris-oscuro);
    color: var(--color-oro);
    border: 2px solid var(--color-oro);
    border-radius: 5px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

button:hover {
    background: var(--color-oro);
    color: var(--color-negro);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

button.btn-secondary {
    background: var(--color-gris-oscuro);
    color: var(--color-gainsboro);
    border-color: var(--color-gris-claro);
}

button.btn-secondary:hover {
    background: var(--color-gris-claro);
    color: var(--color-blanco);
}

button.btn-danger {
    border-color: #FF6B6B;
    color: #FF6B6B;
}

button.btn-danger:hover {
    background: #FF6B6B;
    color: var(--color-blanco);
}

/* ===== MENSAJES ===== */
.message {
    margin-top: 20px;
    padding: 12px;
    border-radius: 5px;
    display: none;
    animation: slideIn 0.3s ease;
}

.message.error {
    background: var(--color-gris-oscuro);
    color: #FF6B6B;
    border: 2px solid #FF6B6B;
    display: block;
}

.message.success {
    background: var(--color-gris-oscuro);
    color: var(--color-oro);
    border: 2px solid var(--color-oro);
    display: block;
}

/* ===== LOADING SPINNER ===== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 215, 0, 0.3);
    border-radius: 50%;
    border-top-color: var(--color-oro);
    animation: spin 0.8s linear infinite;
    margin-right: 10px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

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

/* ===== ENLACES ===== */
a {
    color: var(--color-oro);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
    color: var(--color-gainsboro);
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 20px;
    color: var(--color-oro);
    font-size: 14px;
}

.register-link,
.forgot-link {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
}

.register-link a,
.forgot-link a {
    color: var(--color-oro);
}

/* ===== MODALES ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--color-azul-moscuro);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    max-width: 400px;
    animation: slideIn 0.3s ease;
    border: 2px solid var(--color-oro);
    color: var(--color-gainsboro);
}

.modal-buttons {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    justify-content: center;
}

.modal-buttons button {
    width: auto;
    margin: 0;
    padding: 10px 20px;
}

.close-modal {
    background: var(--color-gris-oscuro);
    color: var(--color-gainsboro);
    border-color: var(--color-gris-claro);
}

.close-modal:hover {
    background: var(--color-gris-claro);
    color: var(--color-blanco);
}

/* ===== TABLAS Y LISTAS ===== */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

th {
    background: var(--color-gris-oscuro);
    color: var(--color-oro);
    padding: 12px;
    text-align: left;
    border-bottom: 2px solid var(--color-oro);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--color-gris-oscuro);
    color: var(--color-gainsboro);
}

tr:hover {
    background: var(--color-gris-oscuro);
}

/* ===== BADGES Y ETIQUETAS ===== */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

.badge-activa {
    background: var(--color-oro);
    color: var(--color-negro);
}

.badge-expirada {
    background: #FF6B6B;
    color: var(--color-blanco);
}

.badge-vinculado {
    background: var(--color-gris-oscuro);
    color: var(--color-oro);
    border: 1px solid var(--color-oro);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
    .modal-buttons {
        flex-direction: column;
    }

    .modal-buttons button {
        width: 100%;
    }

    button {
        padding: 12px;
        font-size: 14px;
    }

    .header {
        padding: 20px;
    }

    .content {
        padding: 20px;
    }
}