/* -------------------- */
/*        BODY          */
/* -------------------- */
body {
    font-family: "Poppins", Arial, sans-serif;
    background: #152235;
    color: #e8e8e8;
    overflow-x: hidden;
}

/* -------------------- */
/*       HEADER         */
/* -------------------- */
header {
    background: rgba(0, 80, 140, 0.65);
    color: white;
    padding: 18px 45px;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 6px 14px rgba(0,0,0,0.35);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.22);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center; 
}

.header-buttons {
    display: flex;
    gap: 12px;
    justify-self: end; /* Para grid */
    align-items: center;
}

.title {
    margin: 0;
    font-size: 2.1rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-align: center;
    width: 100%;
    grid-column: 2;
    justify-self: center;
}

h2 {
    margin: 0 0 30px;
    font-size: 2.1rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-align: center;
    width: 100%;
    grid-column: 2;
    justify-self: center;
}

p {
    grid-column: 2;
    justify-self: center;
}

/* -------------------- */
/*       BOTONES        */
/* -------------------- */
.btn {
    background-color: white;
    color: #003a63;
    padding: 9px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    transition: 0.25s;
}

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

.btn-login {
    background-color: #ff5e5e;
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: bold;
    transition: 0.25s;
}

.btn-login:hover {
    background-color: #d90000;
    transform: scale(1.06);
}

/* -------------------- */
/*       MENU LATERAL    */
/* -------------------- */
:root {
    --menu-bg: rgba(0, 0, 0, 0.55);
    --menu-blur: blur(14px);
}

.menu-toggle-left {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    font-size: 26px;
    cursor: pointer;
    z-index: 1002;
    color: white;
    background: var(--menu-bg);
    backdrop-filter: var(--menu-blur);
    padding: 6px 12px;
    border-radius: 8px;
}

.side-menu-left {
    position: fixed;
    top: 0;
    left: -25vw;
    width: 25vw;
    height: 100vh;
    background: var(--menu-bg);
    backdrop-filter: var(--menu-blur);
    padding-top: 100px;
    transition: left 0.35s ease;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.side-menu-left.open {
    left: 0;
}

.side-menu-left .side-btn {
    display: block;
    padding: 14px 18px;
    margin: 0 20px;
    color: white;
    text-decoration: none;
    font-size: 18px;
    border: 1px solid rgba(255,255,255,0.6);
    border-radius: 8px;
    text-align: center;
    backdrop-filter: blur(3px);
}

/* -------------------- */
/*      ACORDEÓN        */
/* -------------------- */
.container {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 15px;
}

.accordion {
    background-color: #1f2a44;
    color: #e8e8e8;
    cursor: pointer;
    padding: 15px 20px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 1.1rem;
    transition: background-color 0.25s, transform 0.2s;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.accordion:hover {
    background-color: #284164;
    transform: translateY(-2px);
}

.accordion.active {
    background-color: #003a63;
}

.panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    background-color: #192233;
    padding: 0 20px;
    border-radius: 0 0 8px 8px;
    margin-bottom: 10px;
}

.panel.open {
    padding: 20px 25px; /* un poco más de espacio interno */
    background: linear-gradient(135deg, #1f2a44, #253350); /* degradado sutil */
    border-left: 4px solid #00aaff; /* línea de acento azul */
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5); /* sombra sutil */
    border-radius: 0 0 12px 12px; /* bordes redondeados solo en la parte inferior */
    transition: all 0.35s ease; /* transición suave */
}

/* Icono giratorio al abrir */
.accordion .icon {
    transition: transform 0.3s ease;
}

.accordion.active .icon {
    transform: rotate(90deg);
}


/* -------------------- */
/*       RESPONSIVE     */
/* -------------------- */

/* Tablets y pantallas medianas */
@media (max-width: 1024px) {
    header {
        padding: 12px 25px;
        grid-template-columns: auto 1fr auto;
    }

    .title, h2, p {
        font-size: 1.8rem;
    }

    .side-menu-left {
        width: 40vw;
        left: -40vw;
        padding-top: 80px;
    }

    .side-menu-left .side-btn {
        font-size: 16px;
        padding: 12px 16px;
        margin: 0 15px;
    }

    .container {
        max-width: 90%;
        margin: 30px auto;
        padding: 0 10px;
    }

    .accordion {
        font-size: 1rem;
        padding: 12px 18px;
    }

    .panel.open {
        padding: 18px 20px;
    }
}

/* Móviles pequeños */
@media (max-width: 768px) {
    header {
        padding: 10px 15px;
    }

    .title, h2, p {
        font-size: 1.5rem;
    }

    .menu-toggle-left {
        font-size: 24px;
        padding: 5px 10px;
    }

    .side-menu-left {
        width: 70vw;
        left: -70vw;
        padding-top: 70px;
    }

    .side-menu-left .side-btn {
        font-size: 15px;
        padding: 10px 14px;
        margin: 0 12px;
    }

    .container {
        max-width: 95%;
        margin: 25px auto;
        padding: 0 8px;
    }

    .accordion {
        font-size: 0.95rem;
        padding: 10px 15px;
    }

    .panel.open {
        padding: 15px 18px;
    }
}

/* Extra pequeños / móviles muy estrechos */
@media (max-width: 480px) {
    header {
        padding: 8px 12px;
    }

    .title, h2, p {
        font-size: 1.3rem;
    }

    .menu-toggle-left {
        font-size: 22px;
        padding: 4px 8px;
    }

    .side-menu-left {
        width: 80vw;
        left: -80vw;
        padding-top: 60px;
    }

    .side-menu-left .side-btn {
        font-size: 14px;
        padding: 8px 12px;
        margin: 0 10px;
    }

    .container {
        max-width: 100%;
        margin: 20px auto;
        padding: 0 5px;
    }

    .accordion {
        font-size: 0.9rem;
        padding: 8px 12px;
    }

    .panel.open {
        padding: 12px 15px;
    }
}