/* =========================================
   ESTILOS GENERALES Y ESTRUCTURA
   ========================================= */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: radial-gradient(circle at top left, rgba(41, 128, 185, 0.18), transparent 22%),
                radial-gradient(circle at bottom right, rgba(243, 156, 18, 0.16), transparent 22%),
                linear-gradient(150deg, #07111d 0%, #112640 45%, #0f1831 100%);
    color: #edf2f7;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

body::before,
body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(80px);
    opacity: 0.25;
}
body::before {
    width: 380px;
    height: 380px;
    top: -120px;
    left: -90px;
    background: rgba(41, 128, 185, 0.4);
}
body::after {
    width: 420px;
    height: 420px;
    bottom: -120px;
    right: -100px;
    background: rgba(243, 156, 18, 0.35);
}

header {
    background: rgba(10, 20, 40, 0.94);
    color: #f4f7fb;
    padding: 40px 20px;
    text-align: center;
    border-radius: 24px;
    width: min(100%, 960px);
    margin: 24px auto 32px auto;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -60px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(243, 156, 18, 0.18);
}

header::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -60px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(41, 128, 185, 0.16);
}

header h1 {
    margin: 0;
    font-size: clamp(32px, 4vw, 46px);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #ffffff;
    line-height: 1.05;
}

main {
    background: rgba(8, 18, 34, 0.92);
    width: min(100%, 960px);
    margin: 0 auto 40px auto;
    padding: 36px;
    border-radius: 28px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255,255,255,0.08);
}

main h2 {
    color: #f1c40f;
    margin-top: 0;
    text-transform: uppercase;
    font-size: 22px;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

/* =========================================
   DISEÑO DE LA TABLA
   ========================================= */
table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
}

th, td {
    padding: 16px 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

th {
    background-color: rgba(169, 50, 38, 0.95);
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    font-weight: 600;
}

tr {
    background-color: rgba(255,255,255,0.04);
    transition: background-color 0.3s ease, transform 0.2s ease;
}

tr:hover {
    background-color: rgba(243,156,18,0.12);
    transform: scale(1.01);
    box-shadow: 0 2px 12px rgba(0,0,0,0.14);
}

/* =========================================
   ESTILOS DEL MENÚ MÁGICO (TUS BOTONES)
   ========================================= */
.navigation {
    width: min(100%, 420px);
    height: 72px;
    background: rgba(255,255,255,0.09);
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 24px;
    margin: 20px auto;
    box-shadow: 0 18px 30px rgba(0, 0, 0, 0.18);
    border: 1px solid rgba(255,255,255,0.1);
}

.navigation ul {
    display: flex;
    width: 100%;
    max-width: 380px;
    padding: 0;
    margin: 0;
}

.navigation ul li {
    position: relative;
    list-style: none;
    width: 70px;
    height: 70px;
    z-index: 1;
}

.navigation ul li a {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 100%;
    text-align: center;
    font-weight: 600;
    text-decoration: none;
    color: #edf2f7;
}

.navigation ul li a .icon {
    position: relative;
    display: block;
    line-height: 75px;
    font-size: 1.35em;
    text-align: center;
    transition: 0.5s;
    color: #d1d8e0;
}

.navigation ul li a .text {
    position: absolute;
    color: #d1d8e0;
    font-weight: 500;
    font-size: 0.72em;
    letter-spacing: 0.05em;
    transition: 0.5s;
    opacity: 0;
    transform: translateY(20px);
}

.navigation ul li.active a .icon {
    transform: translateY(-32px);
    color: #f1c40f;
}

.navigation ul li.active a .text {
    opacity: 1;
    transform: translateY(10px);
}

.indicator {
    position: absolute;
    top: -50%;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #f1c40f, #e67e22);
    border-radius: 50%;
    border: 6px solid rgba(255,255,255,0.85);
    transition: 0.5s;
}

.indicator::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -22px;
    width: 20px;
    height: 20px;
    background: transparent;
    border-top-right-radius: 20px;
    box-shadow: 1px -10px 0 0 rgba(255,255,255,0.85);
}

.indicator::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -22px;
    width: 20px;
    height: 20px;
    background: transparent;
    border-top-left-radius: 20px;
    box-shadow: -1px -10px 0 0 rgba(255,255,255,0.85);
}

.navigation ul li:nth-child(1).active ~ .indicator { transform: translateX(calc(70px * 0)); }
.navigation ul li:nth-child(2).active ~ .indicator { transform: translateX(calc(70px * 1)); }
.navigation ul li:nth-child(3).active ~ .indicator { transform: translateX(calc(70px * 2)); }
.navigation ul li:nth-child(4).active ~ .indicator { transform: translateX(calc(70px * 3)); }

/* =========================================
   DISEÑO RESPONSIVO (TELÉFONOS)
   ========================================= */
@media (max-width: 768px) {
    body { padding: 16px; }
    header { width: 100%; margin: 18px 0 24px 0; padding: 32px 18px; }
    main { width: 100%; padding: 24px; }
    .navigation { width: 100%; max-width: 360px; }
}

/* =========================================
   ESTILOS DEL FORMULARIO DE REGISTRO
   ========================================= */
.formulario {
    display: grid;
    gap: 16px;
    max-width: 520px;
    margin: 16px auto 0 auto;
}

.formulario input,
.formulario select {
    width: 100%;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    color: #edf2f7;
    padding: 16px 18px;
    border-radius: 18px;
    font-size: 15px;
    transition: border-color 0.3s ease, transform 0.2s ease;
}

.formulario input:focus,
.formulario select:focus {
    border-color: #f1c40f;
    outline: none;
    transform: translateY(-1px);
}

.formulario button {
    background: linear-gradient(135deg, #f1c40f 0%, #f39c12 100%);
    color: #08101a;
    border: none;
    padding: 16px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.formulario button:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 32px rgba(243,156,18,0.3);
}

.formulario button:active {
    transform: translateY(0);
}

.texto-chivo {
    font-size: clamp(42px, 8vw, 64px);
    font-weight: 900;
    text-transform: uppercase;
    text-align: center;
    margin: 20px auto;
    background-image: linear-gradient(135deg, rgba(241,196,15,1), rgba(235,112,46,1));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}

@media (max-width: 768px) {
    .texto-chivo {
        font-size: clamp(32px, 10vw, 48px);
    }
    .formulario { max-width: 100%; }
}