:root { --bg:#0f172a; --card:#111827; --text:#e5e7eb; --muted:#9ca3af; --brand:#22c55e; --brand-2:#60a5fa; }
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";color:var(--text);background:radial-gradient(1200px 600px at 20% 0%, #1e293b 0%, var(--bg) 60%)}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(1100px,92%);margin:0 auto}

/* Botones */
.btn{display:inline-block;padding:12px 18px;border-radius:12px;font-weight:600;border:1px solid #334155;background:linear-gradient(180deg,#1f2937 0%,#0b1220 100%);color:#fff;box-shadow:0 8px 20px rgba(0,0,0,.35);transition:transform .15s ease,box-shadow .2s ease,background .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.45);background:linear-gradient(180deg,#2a3648 0%,#0e1626 100%)}
.btn.primary{background:linear-gradient(180deg,var(--brand) 0%,#16a34a 100%);border-color:#166534;color:#052e16}
.btn.primary:hover{background:linear-gradient(180deg,#34d399 0%,#16a34a 100%)}
.btn.nohover:hover{transform:none;box-shadow:0 8px 20px rgba(0,0,0,.35);background:linear-gradient(180deg,#1f2937 0%,#0b1220 100%)}
.btn.primary .icon-plane{margin-left:6px;font-size:1.1em;color:inherit}

/* Header */
header{position:sticky;top:0;backdrop-filter:blur(8px);background:rgba(2,6,23,.6);border-bottom:1px solid #0b1220;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;gap:10px;align-items:center}
.brand .logo{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:inset 0 0 20px rgba(255,255,255,.15),0 6px 18px rgba(0,0,0,.35)}
.brand h1{font-size:18px;margin:0;letter-spacing:.3px}
nav a{padding:8px 10px;color:var(--muted)}
nav a:hover{color:#fff}

/* Hero */
.hero{padding:90px 0 40px;text-align:center;position:relative;overflow:hidden}
.hero h2{font-size:clamp(28px,4vw,44px);margin:0 0 10px}
.hero p{margin:0 auto 22px;color:var(--muted);max-width:60ch}
.hero .cta{margin-top:10px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-overlay{background:rgba(0,0,0,.55);padding:80px 20px;border-radius:16px;position:relative;z-index:2}
.pill{display:inline-block;padding:6px 10px;border-radius:999px;border:1px solid #1f2937;background:rgba(0,0,0,.6);font-size:12px;color:#cbd5e1}

/* Slider */
.slider{position:absolute;inset:0;z-index:-1;overflow:hidden}
.slides{display:flex;height:100%;transition:transform .6s ease}
.slides img{width:100%;height:100%;object-fit:cover;flex:0 0 100%}
.controls{position:absolute;inset:0;display:flex;align-items:center;justify-content:space-between;padding:0 8px;pointer-events:none}
.arrow{pointer-events:all;border:1px solid #334155;background:rgba(2,6,23,.65);width:38px;height:38px;border-radius:999px;display:grid;place-items:center;cursor:pointer;backdrop-filter:blur(4px);color:#e5e7eb}
.arrow:hover{background:rgba(2,6,23,.85)}
.dots{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);display:flex;gap:8px}
.dot{width:8px;height:8px;border-radius:999px;border:1px solid #e5e7ebaa;background:#ffffff22;cursor:pointer}
.dot.active{background:#e5e7eb}

/* Layout básicos */
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.feature{grid-column:span 12;padding:18px;border:1px solid #111827;background:linear-gradient(180deg,#0b1220 0%,#0a0f1a 100%);border-radius:16px;box-shadow:0 10px 24px rgba(0,0,0,.35);display:flex;align-items:flex-start;gap:12px}
.feature h3{margin-top:0;font-size:18px}
.feature p{color:var(--muted);margin-bottom:0}
.icon{width:28px;height:28px;flex:0 0 28px;display:inline-flex;align-items:center;justify-content:center;color:var(--brand)}
@media(min-width:720px){.feature{grid-column:span 4}}

.section-title{font-size:3rem;margin:0 0 12px;color:#fff;text-align:left}
.hl{color:var(--brand);font-weight:700}

/* Cards y vitrinas */
.showcase{margin:40px 0;display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.showcase.turismo{grid-template-columns:repeat(4,1fr)}
.card{border:1px solid #0b1220;background:#0a1220;border-radius:16px;overflow:hidden;box-shadow:0 10px 24px rgba(0,0,0,.35);position:relative}
.card .body{padding:14px}
.card .muted{color:var(--muted)}
.actions{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}

/* Colores Turismo */
.card.esencial{border-color:#334155;background:linear-gradient(180deg,#0b1220 0%,#0a1020 100%)}
.card.clasico{border-color:#4c1d95;background:radial-gradient(600px 300px at 100% 0%,#1f1140 0%,#0a1020 60%)}
.card.plus{border-color:#166534;background:radial-gradient(600px 300px at 0% 0%,#113f20 0%,#0a1020 60%)}
.card.elite{border-color:#a16207;background:radial-gradient(600px 300px at 50% 0%,#40210a 0%,#0a1020 60%)}
.card.extra1{border-color:#0ea5e9;background:radial-gradient(600px 300px at 50% 0%,#1e3a8a 0%,#0a1020 60%)}
.card.extra2{border-color:#f59e0b;background:radial-gradient(600px 300px at 50% 0%,#92400e 0%,#0a1020 60%)}

/* Colores Estudio */
.card.student-basic{border-color:#334155;background:linear-gradient(180deg,#0b1220 0%,#0a1020 100%)}
.card.student-plus{border-color:#166534;background:radial-gradient(600px 300px at 0% 0%,#113f20 0%,#0a1020 60%)}
.card.student-premium{border-color:#a16207;background:radial-gradient(600px 300px at 0% 0%,#3b2604 0%,#0a1020 60%)}

/* Beneficios */
.benefits{margin:50px 0;}
.benefits h2{font-size:2.6em;margin-bottom:24px;text-align:left;color:#fff;}
.benefits-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.benefit-card{padding:20px;border:1px solid #111827;border-radius:16px;background:#0a1220;box-shadow:0 10px 24px rgba(0,0,0,.35);}
.benefit-card h3{margin-top:0;color:#fff;}
.benefit-card p{color:var(--muted);}

/* Contacto */
.contact-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));margin-top:20px}
.contact-card{padding:20px;border:1px solid #111827;border-radius:16px;background:#0a1220;box-shadow:0 10px 24px rgba(0,0,0,.35)}
.contact-card h3{margin-top:0}
.contact-form{margin-top:10px;background:#fff;border-radius:16px;padding:18px;border:1px solid #e2e8f0;color:#0b1220}
.contact-form .btn.primary{color:#052e16}
form{display:grid;gap:12px}
input,textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #cbd5e1;background:#fff;color:#0b1220}
textarea{min-height:120px;resize:vertical}

/* Membresías */
.membership-grid{display:grid;gap:18px;margin:20px 0;grid-template-columns:1fr}
@media(min-width:720px){.membership-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.membership-grid{grid-template-columns:repeat(3,1fr)}}
.membership-card{border-radius:16px;overflow:hidden;box-shadow:0 8px 20px rgba(0,0,0,.35);position:relative;padding-bottom:50px}
.membership-card .badge{position:absolute;top:12px;right:12px;font-size:12px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid #1f2937}
.membership-card .body{padding:18px}
.membership-card h3{margin:0 0 8px}
.membership-card ul{margin:10px 0 20px;padding-left:18px;color:var(--muted)}
.price-tag{position:absolute;bottom:12px;right:12px;font-size:14px;font-weight:600}
.basic{border:1px solid #334155;background:linear-gradient(180deg,#0b1220,#0a1020)}
.plus{border:1px solid #4c1d95;background:radial-gradient(600px 300px at 100% 0%,#1f1140,#0a1020 60%)}
.premium{border:1px solid #a16207;background:radial-gradient(600px 300px at 0% 0%,#3b2604,#0a1020 60%)}
.platinum{border:1px solid #38bdf8;background:radial-gradient(600px 300px at 0% 0%,#0b3a52,#0a1020 60%)}
.estudiantil{border:1px solid #22c55e;background:radial-gradient(600px 300px at 0% 0%,#0d3b2a,#0a1020 60%)}
.diamond{border:1px solid #1e40af;background:radial-gradient(600px 300px at 0% 0%,#102040,#0a1020 60%)}
.basic .price-tag{color:#22c55e}
.plus .price-tag{color:#8b5cf6}
.premium .price-tag{color:#a16207}
.platinum .price-tag{color:#38bdf8}
.estudiantil .price-tag{color:#22c55e}
.diamond .price-tag{color:#60a5fa}