/* ============================================================
   5G SignBoost — Sistema de diseño SaaS
   ============================================================ */
:root {
    --bg: #0b1020;
    --bg-soft: #101830;
    --card: #141d38;
    --card-2: #182448;
    --border: rgba(148, 163, 255, 0.14);
    --text: #e8ecff;
    --muted: #9aa5c9;
    --brand: #4f7cff;
    --brand-2: #22d3ee;
    --accent: #a78bfa;
    --success: #34d399;
    --radius: 16px;
    --shadow: 0 20px 50px rgba(3, 8, 24, 0.45);
    --gradient: linear-gradient(135deg, #4f7cff 0%, #22d3ee 100%);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: "Segoe UI", "Inter", Arial, sans-serif;
    background:
        radial-gradient(1200px 600px at 80% -10%, rgba(79, 124, 255, 0.18), transparent 60%),
        radial-gradient(900px 500px at -10% 30%, rgba(34, 211, 238, 0.10), transparent 55%),
        var(--bg);
    color: var(--text);
    line-height: 1.6;
}

img { max-width: 100%; }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Tipografía ---------- */
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }

.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--brand-2);
    margin-bottom: 14px;
}

.section { padding: 90px 0; }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 1.05rem; }

/* ---------- Botones ---------- */
.btn {
    display: inline-block;
    padding: 13px 28px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.98rem;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    cursor: pointer;
    border: none;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 10px 30px rgba(79, 124, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 14px 36px rgba(79, 124, 255, 0.5); }

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--brand); }

.cta {
    display: inline-block;
    background: var(--gradient);
    color: #fff;
    padding: 12px 26px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    margin: 10px 0;
    box-shadow: 0 8px 24px rgba(79, 124, 255, 0.3);
    transition: transform 0.15s ease;
}
.cta:hover { transform: translateY(-2px); background: var(--gradient); }

/* ---------- Navbar ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    background: rgba(11, 16, 32, 0.75);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    max-width: 1120px;
    margin: 0 auto;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--text);
    text-decoration: none;
}
.logo-badge {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: var(--gradient);
    display: grid;
    place-items: center;
    font-size: 0.85rem;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 6px 18px rgba(79, 124, 255, 0.4);
}
.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
    align-items: center;
}
.nav-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
    padding: 9px 20px;
    font-size: 0.9rem;
}

/* ---------- Hero ---------- */
.hero { padding: 110px 0 80px; }
.hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}
.hero p.lead {
    color: var(--muted);
    font-size: 1.15rem;
    margin: 22px 0 34px;
    max-width: 520px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
    display: flex;
    gap: 34px;
    margin-top: 48px;
    flex-wrap: wrap;
}
.stat strong {
    display: block;
    font-size: 1.7rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.stat span { color: var(--muted); font-size: 0.88rem; }

/* Tarjeta mockup del dashboard */
.mockup {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px;
    position: relative;
    overflow: hidden;
}
.mockup::before {
    content: "";
    position: absolute;
    inset: -40% -20% auto auto;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(79,124,255,0.25), transparent 70%);
    pointer-events: none;
}
.mockup-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    margin-bottom: 18px;
    font-size: 0.95rem;
}
.live-dot {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.75rem;
    color: var(--success);
    font-weight: 700;
}
.live-dot::before {
    content: "";
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 1.6s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5); }
    70% { box-shadow: 0 0 0 10px rgba(52, 211, 153, 0); }
    100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.signal-row {
    display: grid;
    grid-template-columns: 110px 1fr 64px;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.signal-row:last-child { border-bottom: none; }
.signal-row .site { font-size: 0.85rem; color: var(--muted); font-weight: 600; }
.bar-track {
    height: 8px;
    background: rgba(148, 163, 255, 0.12);
    border-radius: 999px;
    overflow: hidden;
}
.bar-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--gradient);
}
.signal-row .val {
    font-size: 0.85rem;
    font-weight: 700;
    text-align: right;
}

/* ---------- Features ---------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}
.feature-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: transform 0.18s ease, border-color 0.18s ease;
}
.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(79, 124, 255, 0.45);
}
.feature-icon {
    width: 46px; height: 46px;
    border-radius: 12px;
    background: rgba(79, 124, 255, 0.15);
    display: grid;
    place-items: center;
    font-size: 1.3rem;
    margin-bottom: 18px;
}
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Cómo funciona ---------- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    counter-reset: step;
}
.step {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 26px;
}
.step::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 14px;
}
.step h3 { margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Planes ---------- */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    align-items: stretch;
}
.plan {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
}
.plan.featured {
    border: 2px solid var(--brand);
    box-shadow: 0 20px 50px rgba(79, 124, 255, 0.25);
    position: relative;
}
.plan-badge {
    position: absolute;
    top: -14px; left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 5px 16px;
    border-radius: 999px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
}
.plan h3 { font-size: 1.2rem; }
.plan .price {
    font-size: 2.4rem;
    font-weight: 800;
    margin: 14px 0 4px;
}
.plan .price small {
    font-size: 1rem;
    color: var(--muted);
    font-weight: 500;
}
.plan .plan-desc { color: var(--muted); font-size: 0.92rem; margin-bottom: 20px; }
.plan ul {
    list-style: none;
    margin: 0 0 26px;
    padding: 0;
    flex: 1;
}
.plan li {
    padding: 7px 0;
    color: var(--text);
    font-size: 0.95rem;
}
.plan li::before {
    content: "✓";
    color: var(--success);
    font-weight: 800;
    margin-right: 10px;
}
.plan .btn, .plan .cta { text-align: center; width: 100%; }

/* ---------- Testimonios ---------- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}
.testimonial {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}
.testimonial p.quote {
    font-size: 1rem;
    color: var(--text);
    border-left: 3px solid var(--brand);
    padding-left: 16px;
    margin-bottom: 18px;
}
.testimonial .author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.avatar {
    width: 42px; height: 42px;
    border-radius: 50%;
    background: var(--gradient);
    display: grid;
    place-items: center;
    font-weight: 800;
    color: #fff;
}
.testimonial .author .name { font-weight: 700; font-size: 0.95rem; }
.testimonial .author .role { color: var(--muted); font-size: 0.82rem; }

/* ---------- CTA final ---------- */
.cta-band {
    background:
        radial-gradient(600px 200px at 50% 0%, rgba(79,124,255,0.25), transparent 70%),
        var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 64px 32px;
    text-align: center;
}
.cta-band p { color: var(--muted); max-width: 520px; margin: 14px auto 30px; }

/* ---------- Formulario / contacto ---------- */
.contacto {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
}
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 22px;
}
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 6px; color: var(--muted); }
input, select, textarea {
    width: 100%;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(79, 124, 255, 0.2);
}
textarea { min-height: 110px; resize: vertical; }
.form-note { font-size: 0.82rem; color: var(--muted); margin-top: 12px; }

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    margin-top: 40px;
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.footer p { color: var(--muted); font-size: 0.9rem; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--text); }

/* ---------- Página de servicios ---------- */
.page-header {
    padding: 90px 0 40px;
    max-width: 700px;
}
.page-header p { color: var(--muted); font-size: 1.1rem; margin-top: 16px; }

.servicio-block {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 22px;
}
.servicio-block h2 {
    font-size: 1.35rem;
    border: none;
    margin-bottom: 6px;
}
.servicio-block > p { color: var(--muted); margin-bottom: 16px; }
.servicio-block ul { list-style: none; }
.servicio-block li {
    padding: 8px 0;
    font-size: 0.98rem;
}
.servicio-block li::before {
    content: "→";
    color: var(--brand-2);
    font-weight: 800;
    margin-right: 10px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; }
    .features-grid, .steps, .plans-grid, .testimonials-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .section { padding: 64px 0; }
}