:root {
    --sortium-purple: #a200ff;
    --sortium-cyan: #00f2fe;
    --bg-deep: radial-gradient(circle at top, #090511 0%, #040416 35%, #020812 100%);
    --font-heading: 'Michroma', sans-serif;
    --font-main: 'Muli', sans-serif;
    --transition-standard: all 0.3s ease;
}

body {
    margin: 0;
    background: var(--bg-deep);
    color: #f5f8ff;
    font-family: var(--font-main);
    overflow-x: hidden;
}

.sortium-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 20px 80px;
    background: radial-gradient(circle at top left, rgba(75, 0, 130, 0.16), transparent 25%),
                linear-gradient(135deg, #020817 0%, #00101f 100%);
    overflow: hidden;
}

.sortium-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(162, 0, 255, 0.16), transparent 18%),
                radial-gradient(circle at bottom left, rgba(0, 242, 254, 0.10), transparent 15%);
    pointer-events: none;
    animation: glow 12s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { opacity: 0.65; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.02); }
}

.sortium-content h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.1rem, 3vw, 1.8rem);
    letter-spacing: 0.15rem;
    color: #ffffff;
    text-shadow: 0 0 15px rgba(0, 242, 254, 0.6);
    text-transform: uppercase;
}

.section-title h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    color: #ffffff !important;
    text-shadow: 0 0 15px rgba(0, 242, 254, 0.6);
}

.section-title span {
    color: var(--sortium-purple) !important;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.main-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(4, 8, 21, 0.70);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(162, 0, 255, 0.18);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1440px;
    margin: 0 auto;
    padding: 14px 24px;
}

.nav-link {
    color: #e3f3ff;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.25s ease;
}

.nav-link:hover { color: var(--sortium-cyan); }

.btn-sortium {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 190px;
    padding: 16px 26px;
    border-radius: 999px;
    font-weight: 700;
    text-transform: uppercase;
    transition: var(--transition-standard);
}

.btn-primary-sortium {
    background: linear-gradient(135deg, var(--sortium-cyan) 0%, var(--sortium-purple) 100%);
    color: #02131e;
    box-shadow: 0 10px 30px rgba(162, 0, 255, 0.3);
}

.btn-sortium:hover {
    transform: translateY(-3px);
    box-shadow: 0 24px 50px rgba(0, 230, 255, 0.24);
}

.sortium-visual {
    position: relative;
    min-height: 500px;
    background: rgba(10, 7, 32, 0.94);
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 40px 90px rgba(0, 0, 0, 0.35);
}

.network-card {
    padding: 28px;
    background: rgba(12,14,40,0.88);
    border-radius: 24px;
    border: 1px solid rgba(0,242,254,0.3);
    backdrop-filter: blur(12px);
    transition: var(--transition-standard);
}

.network-card:hover { transform: translateY(-8px); }

.feature-list {
    list-style: none;
    display: grid;
    gap: 14px;
    padding: 0;
}

.feature-list li {
    padding: 18px 20px;
    background: rgba(255,255,255,0.05);
    border-radius: 18px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 18px;
    align-items: center;
}

.feature-list li i {
    font-size: 1.5rem;
    color: var(--sortium-cyan);
    text-shadow: 0 0 18px rgba(0,242,254,0.45);
}

.sortium-footer {
    background: #050417;
    padding: 45px 0 28px;
    border-top: 1px solid rgba(162, 0, 255, 0.18);
}

.footer-links a {
    color: #9bbcff;
    text-decoration: none;
    transition: color 0.25s ease;
}

.footer-links a:hover { color: var(--sortium-cyan); }

/* Órbitas Animadas */
.orbit-path {
    position: absolute;
    top: 50%; left: 50%;
    width: 420px; height: 420px;
    transform: translate(-50%, -50%);
}

.orbit-sphere {
    position: absolute;
    width: 18px; height: 18px;
    border-radius: 50%;
}

.orbit-sphere.yellow { background: #ffe75c; animation: orbitYellow 12s linear infinite; }
.orbit-sphere.green { background: #4cff86; animation: orbitGreen 10s linear infinite; }
.orbit-sphere.purple { background: #b300ff; animation: orbitPurple 8s linear infinite; }

@keyframes orbitYellow {
    0% { transform: translate(-50%, -50%) rotate(0deg) translateX(210px); }
    100% { transform: translate(-50%, -50%) rotate(360deg) translateX(210px); }
}

/* Responsive */
@media (max-width: 768px) {
    .navbar { flex-wrap: wrap; justify-content: center; }
    .nav-links { width: 100%; justify-content: center; order: 2; margin: 15px 0; }
    .footer-links { align-items: center; }
    .network-grid { grid-template-columns: 1fr; }
}

@media (min-width: 769px) {
    .network-grid { grid-template-columns: repeat(2, 1fr); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes floatUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}