* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #F5F5F5 0%, #E8E8E8 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1 {
    color: #2D2D2D;
    margin-bottom: 1rem;
}

h2 {
    color: #3A3A3A;
    margin-top: 30px;
    border-bottom: 1px solid #B8B8B8;
    padding-bottom: 10px;
}

p {
    color: #4A4A4A;
    line-height: 1.6;
}


/* ============================================
   NAVEGACIÓN
   ============================================ */
nav {
    background: rgba(60, 60, 60, 0.95);
    padding: 0.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav a,
nav button {
    color: #E8E8E8;
    text-decoration: none;
    margin: 0 1rem;
    padding: 0.5rem 1rem;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1rem;
    transition: 0.3s;
}

nav a:hover,
nav button:hover {
    color: #FFFFFF;
}

.nav-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}


/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-block;
    margin: 0.5rem;
    background: #6B6B6B;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: 0.3s;
    border: none;
    cursor: pointer;    
}

.btn:hover {
    background: #4A4A4A;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #A0A0A0;
}

.btn-secondary:hover {
    background: #808080;
}

button {
    background-color: #6B6B6B;
    color: white;
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

button:hover {
    background-color: #4A4A4A;
}


/* ============================================
   CONTENEDOR PRINCIPAL
   ============================================ */
.container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    width: 100%;
}

.content {
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    text-align: center;
    max-width: 600px;
}

.image-container {
    display: flex;
    justify-content: center;
    align-items: start;
    height: 100%;
}


/* ============================================
   ENCABEZADO DEL CURSO
   ============================================ */
.curso-header {
    background: linear-gradient(135deg, rgba(100, 100, 100, 0.9) 0%, rgba(80, 80, 80, 0.9) 100%);
    padding: 2rem;
    margin: 0 auto 2rem auto;
    border-radius: 10px;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-width: 900px;
    width: 90%;
}

.curso-header h1 {
    font-family: 'Macondo', cursive;
    font-size: 2.5em;
    margin: 0 0 1rem 0;
    text-align: center;
    color: white;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

.curso-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.curso-info > .info-bloque:only-child {
    grid-column: 1 / -1;
}

.curso-info > .info-bloque:nth-child(1):nth-last-child(2),
.curso-info > .info-bloque:nth-child(2):nth-last-child(1) {
    grid-column: auto;
}

.info-bloque {
    background: rgba(255, 255, 255, 0.12);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 3px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
}

.info-bloque h3 {
    margin: 0 0 0.5rem 0;
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.95;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-weight: 500;
}

.info-bloque p {
    margin: 0;
    font-size: 1em;
    line-height: 1.5;
    color: white;
}


/* ============================================
   FECHAS DEL CURSO
   ============================================ */
.fecha-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.fecha-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 6px;
    text-align: center;
}

.fecha-item .label {
    font-size: 0.8em;
    text-transform: uppercase;
    opacity: 0.8;
    margin-bottom: 0.5rem;
    display: block;
    color: white;
}

.fecha-item .valor {
    font-size: 1.2em;
    font-weight: bold;
    color: white;
}

.no-programado {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-style: italic;
    opacity: 0.9;
    color: white;
}


/* ============================================
   CONTENEDOR FAQ
   ============================================ */
.faq-container {
    max-width: 900px;
    margin: 10px auto 0 auto;
    padding: 1rem;
    width: 90%;
}

.faq-container h2 {
    margin-bottom: 50px;
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    color: #2D2D2D;
    border: none;
    margin-top: 0;
    padding-bottom: 0;
}


/* ============================================
   DETALLES (ACORDEÓN)
   ============================================ */
details {
    background-color: #FAFAFA;
    width: 90%;
    max-width: 900px;
    margin: 10px auto 1rem auto;
    border-radius: 8px;
    border: 1px solid #D5D5D5;
    color: #3A3A3A;
    position: relative;
    box-sizing: border-box;
}

details summary {
    font-weight: 500;
    font-size: 1.25rem;
    padding: 1rem;
    cursor: pointer;
    list-style: none;
    color: #2D2D2D;
}

details p {
    padding: 1rem;
    margin: 0 1rem 1rem 1rem;
    background: #FAFAFA;
    border-left: 2px solid #B8B8B8;
    color: #3A3A3A;
}

details:hover,
details[open] {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

details[open] {
    background: #F0F0F0;
}

details[open] summary {
    font-weight: 600;
    color: #2D2D2D;
}

details summary::before {
    position: absolute;
    content: "+";
    font-size: 1.75rem;
    top: 10px;
    right: 16px;
    color: #6B6B6B;
}

details[open] summary::before {
    animation: rotate-emoji 0.6s ease-in-out both;
}

@keyframes rotate-emoji {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(45deg);
    }
}


/* ============================================
   BLOQUES DE CONTENIDO
   ============================================ */
.bloque1,
.bloque2,
.bloque3 {
    border-radius: 20px;
    text-align: center;
    padding: 20px;
    margin: 10px;
    width: 400px;
    background-color: white;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}

.bloque3 {
    border: 0px;
}


/* ============================================
   FORMULARIOS
   ============================================ */
.form2 {
    background-color: white;
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
    width: 400px;
    margin: auto;
    margin-top: 50px;
}

.form2 input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #D5D5D5;
    border-radius: 4px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #F9F9F9;
}

.form2 button {
    width: 100%;
    padding: 10px;
    background-color: #6B6B6B;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.form2 button:hover {
    background-color: #4A4A4A;
}

select,
input[type="text"],
input[type="date"],
textarea {
    padding: 8px;
    border: 1px solid #D5D5D5;
    border-radius: 4px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #F9F9F9;
}

textarea {
    width: 100%;
    resize: vertical;
    min-height: 80px;
}


/* ============================================
   PANEL ADMINISTRATIVO
   ============================================ */
.admin-container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12);
}

.back-link {
    margin-bottom: 20px;
}

.back-link a {
    color: #6B6B6B;
    text-decoration: none;
    font-weight: bold;
}

.back-link a:hover {
    text-decoration: underline;
}

.admin-container h1 {
    color: #6B6B6B;
}

.admin-container h2 {
    color: #3A3A3A;
    margin-top: 30px;
    border-bottom: 1px solid #B8B8B8;
    padding-bottom: 10px;
}

.mensaje {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 15px;
    font-weight: bold;
}

.mensaje.exito {
    background-color: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #C8E6C9;
}

.mensaje.error {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #FFCDD2;
}

.bloqueado {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #FFCDD2;
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 15px;
    font-weight: bold;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th,
td {
    border: 1px solid #D5D5D5;
    padding: 12px;
    text-align: left;
}

th {
    background-color: #6B6B6B;
    color: white;
}

tr:hover {
    background-color: #F5F5F5;
}

.admin-badge {
    background-color: #9A9A9A;
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-weight: bold;
}

.user-badge {
    background-color: #B8B8B8;
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
}

.blocked-badge {
    background-color: #A0A0A0;
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-weight: bold;
}

.verified {
    color: #2E7D32;
    font-weight: bold;
}

.not-verified {
    color: #C62828;
    font-weight: bold;
}

.config-section {
    background-color: #F5F5F5;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #6B6B6B;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #3A3A3A;
}

.form-group input[type="text"],
.form-group input[type="date"],
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #D5D5D5;
    border-radius: 4px;
    font-size: 14px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #F9F9F9;
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group label {
    margin: 0;
    display: inline;
    font-weight: normal;
    cursor: pointer;
}

.fecha-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.button-group {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}


/* ============================================
   RESPONSIVE - DESKTOP (min-width: 768px)
   ============================================ */
@media (min-width: 768px) {
    .curso-header h1 {
        font-size: 3em;
    }

    .curso-info {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    .fecha-container {
        grid-template-columns: 1fr 1fr;
    }

    .container {
        display: flex;
        justify-content: center;
        align-items: start;
        height: 100%;
        width: 100%;
    }

    .bloque1,
    .bloque2,
    .bloque3 {
        margin: auto;
        width: 400px;
    }

    .fecha-group {
        grid-template-columns: 1fr 1fr;
    }

    .button-group {
        justify-content: flex-end;
    }

    .nav-buttons {
        flex-direction: row;
    }
}


/* ============================================
   RESPONSIVE - TABLET (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
    .curso-info {
        grid-template-columns: 1fr;
    }

    .fecha-container {
        grid-template-columns: 1fr;
    }

    .fecha-group {
        grid-template-columns: 1fr;
    }

    .button-group {
        justify-content: center;
    }

    details {
        width: 95%;
    }

    .curso-header {
        width: 95%;
    }

    .nav-buttons {
        flex-direction: row;
    }
}


/* ============================================
   RESPONSIVE - MÓVIL (max-width: 600px)
   ============================================ */
@media (max-width: 600px) {
    nav {
        flex-wrap: wrap;
    }

    .nav-buttons {
        flex-direction: column;
        gap: 0.3rem;
        align-items: flex-end;
    }

    nav a,
    nav button {
        margin: 0;
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
    }

    .curso-header {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
        width: 95%;
    }

    .curso-header h1 {
        font-size: 1.8em;
    }

    .curso-info {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .info-bloque {
        padding: 1rem;
    }

    .fecha-container {
        grid-template-columns: 1fr;
    }

    .container {
        justify-content: center;
        align-items: start;
        height: 100%;
    }

    .bloque1,
    .bloque2,
    .bloque3 {
        margin: 5px;
        margin-top: 50px;
        width: auto;
    }

    .form2 {
        width: auto;
        margin: auto;
        margin-top: 50px;
    }

    .form2 input {
        width: 100%;
        padding: 10px;
        margin-bottom: 10px;
        border: 1px solid #D5D5D5;
        border-radius: 4px;
        background-color: #F9F9F9;
    }

    .form2 button {
        width: 100%;
        padding: 10px;
        background-color: #6B6B6B;
        color: white;
        border: none;
        border-radius: 4px;
        cursor: pointer;
    }

    .form2 button:hover {
        background-color: #4A4A4A;
    }

    .admin-container {
        margin: 10px;
        padding: 15px;
    }

    table {
        font-size: 0.9rem;
    }

    th,
    td {
        padding: 8px;
    }

    .fecha-group {
        grid-template-columns: 1fr;
    }

    .button-group {
        justify-content: center;
        flex-direction: column;
    }

    .button-group button {
        width: 100%;
    }

    details {
        width: 95%;
    }

    .faq-container {
        width: 95%;
    }
}