:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #0f172a;
    --card-bg: #0b1220;
    --accent: #22c55e;
    --text-main: #e5e7eb;
    --text-muted: #9ca3af;
    --border: #1f2937;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #1d4ed8 0, #020617 45%, #000 100%);
    color: var(--text-main);
}

.shell {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 24px;
}

.container {
    width: 100%;
    max-width: 1100px;
    background: rgba(15,23,42,0.96);
    border-radius: 24px;
    padding: 24px 20px 32px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.6);
    border: 1px solid rgba(148,163,184,0.18);
    backdrop-filter: blur(18px);
}

/* Header + nav */

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 30%, #ffffff 0, #22c55e 35%, #2563eb 80%);
    box-shadow: 0 10px 25px rgba(37,99,235,0.7);
}

.logo-text {
    font-weight: 700;
    letter-spacing: 0.03em;
    font-size: 1.1rem;
}

nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

nav a {
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--text-muted);
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: all 0.18s ease;
}

nav a:hover {
    color: #e5e7eb;
    border-color: rgba(148,163,184,0.5);
    background: rgba(15,23,42,0.9);
}

/* Hero */

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.1fr);
    gap: 30px;
    align-items: center;
    margin-bottom: 32px;
}

.hero-title {
    font-size: clamp(2.2rem, 4vw, 2.7rem);
    line-height: 1.1;
    margin-bottom: 12px;
}

.hero-highlight {
    background: linear-gradient(90deg, #22c55e, #38bdf8);
    -webkit-background-clip: text;
    color: transparent;
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 0.98rem;
    max-width: 460px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0;
}

.badge {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(148,163,184,0.55);
    color: var(--text-muted);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-top: 10px;
}

/* Botones */

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 10px 30px rgba(37,99,235,0.6);
    transition: transform 0.1s ease, box-shadow 0.1s ease, filter 0.1s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
    box-shadow: 0 14px 35px rgba(37,99,235,0.8);
}

.btn-secondary {
    background: transparent;
    border-radius: 999px;
    padding: 8px 14px;
    border: 1px solid rgba(148,163,184,0.6);
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Hero right card */

.hero-right {
    background: radial-gradient(circle at top, rgba(37,99,235,0.32) 0, rgba(15,23,42,0.9) 45%);
    border-radius: 20px;
    padding: 18px 18px 20px;
    border: 1px solid rgba(148,163,184,0.5);
    box-shadow: 0 14px 40px rgba(15,23,42,0.9);
}

.hero-card-title {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.hero-card-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 14px;
    align-items: center;
}

.mini-metric {
    padding: 6px 8px;
    border-radius: 14px;
    background: rgba(15,23,42,0.9);
    border: 1px solid rgba(148,163,184,0.45);
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4px;
}

.mini-metric strong {
    color: var(--text-main);
    font-size: 0.82rem;
}

.pill {
    font-size: 0.7rem;
    padding: 2px 7px;
    border-radius: 999px;
    background: rgba(34,197,94,0.12);
    color: #4ade80;
    border: 1px solid rgba(74,222,128,0.5);
}

/* Secciones y tarjetas */

.section-title {
    font-size: 1rem;
    margin-bottom: 4px;
}

.section-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 14px 13px 15px;
    border: 1px solid var(--border);
    font-size: 0.88rem;
}

.card h3 {
    font-size: 0.95rem;
    margin-bottom: 6px;
}

.card p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 4px;
}

.chip {
    font-size: 0.7rem;
    padding: 3px 7px;
    border-radius: 999px;
    background: rgba(15,23,42,0.9);
    border: 1px solid rgba(148,163,184,0.5);
    color: var(--text-muted);
}

/* Simulador */

.simulator {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 10px;
}

label {
    font-size: 0.78rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 3px;
}

input, select, textarea {
    width: 100%;
    padding: 7px 9px;
    border-radius: 10px;
    border: 1px solid rgba(148,163,184,0.6);
    background: rgba(15,23,42,0.9);
    color: var(--text-main);
    font-size: 0.85rem;
}

input::placeholder,
textarea::placeholder {
    color: #6b7280;
}

.result-box {
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(15,23,42,0.95);
    border: 1px solid rgba(148,163,184,0.7);
    font-size: 0.82rem;
}

.result-main {
    font-size: 0.92rem;
    margin-bottom: 4px;
}

.result-tagline {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.legal-note {
    font-size: 0.7rem;
    color: #6b7280;
    margin-top: 8px;
}

/* Páginas internas */

.page {
    margin-top: 10px;
}

.page-title {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.page-lead {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.page-section {
    margin-top: 14px;
    font-size: 0.88rem;
}

.page-section h2 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.page-section p,
.page-section ul,
.page-section li {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Footer */

footer {
    border-top: 1px solid rgba(31,41,55,0.9);
    margin-top: 14px;
    padding-top: 10px;
    font-size: 0.7rem;
    color: #6b7280;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 6px;
}

/* Responsive */

@media (max-width: 880px) {
    .hero {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 720px) {
    .container {
        padding: 18px 14px 22px;
        border-radius: 20px;
    }
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    nav {
        justify-content: flex-start;
    }
    .grid {
        grid-template-columns: minmax(0, 1fr);
    }
    .form-row {
        grid-template-columns: minmax(0, 1fr);
    }
}