:root {
    --dark-bg: #0b0f19;
    --card-bg: rgba(18, 24, 38, 0.7);
    --nexus-white: #ffffff;
    --nexus-blue: #7a88ff;
    --neon-cyan: #00f0ff;
    --neon-purple: #9d4edd;
    --border-radius: 12px;
    --border-color: rgba(255, 255, 255, 0.08);
}

/* Evitar el scroll horizontal globalmente */
html, body { 
    overflow-x: hidden; 
    width: 100%; 
    max-width: 100vw; 
}

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

body { 
    font-family: 'Poppins', sans-serif; 
    background-color: var(--dark-bg); 
    color: var(--nexus-white); 
    background-image: radial-gradient(circle at 50% 0%, rgba(122, 136, 255, 0.05) 0%, transparent 50%);
}

/* Header & Nav */
header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 20px 50px; 
    background-color: rgba(11, 15, 25, 0.9); 
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color); 
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 30px; }
.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #a0aabf;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 8px;
    background: rgba(255,255,255,0.03);
    border: 1px solid transparent;
}
.back-btn svg { width: 16px; height: 16px; }
.back-btn:hover { 
    color: var(--nexus-white); 
    background: rgba(255,255,255,0.08);
    border-color: var(--border-color);
}

.logo { font-size: 24px; font-weight: 700; letter-spacing: 0.5px; }
.logo .nexus-blue { color: var(--nexus-blue); }
.project-title { font-size: 14px; color: #7a8299; font-weight: 500; background: rgba(255,255,255,0.05); padding: 6px 16px; border-radius: 20px;}

.container { padding: 50px 10%; max-width: 1400px; margin: 0 auto;}

/* Hero */
.hero { text-align: center; margin-bottom: 70px; padding-top: 20px; }
.hero h1 { font-size: 46px; font-weight: 700; margin-bottom: 15px; line-height: 1.2; background: linear-gradient(to right, #fff, #a0aabf); -webkit-background-clip: text; -webkit-text-fill-color: transparent;}
.hero p { font-size: 18px; color: #8a94a6; margin-bottom: 35px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-button { 
    padding: 16px 36px; 
    font-size: 16px; 
    font-weight: 600; 
    border-radius: 8px; 
    border: 1px solid var(--neon-cyan); 
    color: var(--neon-cyan); 
    background: rgba(0, 240, 255, 0.05); 
    cursor: pointer; 
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
    letter-spacing: 1px;
}
.cta-button:hover { 
    background: var(--neon-cyan); 
    color: #000; 
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.4); 
    transform: translateY(-3px);
}

/* Layout Principal */
.main-section { display: grid; grid-template-columns: 1.8fr 1.2fr; gap: 50px; margin-bottom: 80px;}

/* Catálogo */
.catalog-container h2 { font-size: 22px; margin-bottom: 30px; font-weight: 600; color: #e2e8f0; }
.catalog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.catalog-card { 
    background: var(--card-bg); 
    backdrop-filter: blur(12px);
    border-radius: var(--border-radius); 
    padding: 20px; 
    text-align: center; 
    border: 1px solid var(--border-color); 
    transition: all 0.3s ease; 
    position: relative;
    overflow: hidden;
}
.catalog-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    opacity: 0; transition: 0.3s;
}
.catalog-card:hover { 
    transform: translateY(-8px); 
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5); 
}
.catalog-card:hover::before { opacity: 1; }

.catalog-card .placeholder-img { 
    height: 140px; 
    background: rgba(255,255,255,0.02); 
    border-radius: 8px; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    color: #5a657c; 
    font-size: 13px;
    margin-bottom: 15px; 
    border: 1px dashed rgba(255,255,255,0.1); 
    transition: 0.3s;
}
.catalog-card:hover .placeholder-img { border-color: rgba(0, 240, 255, 0.4); color: #8a94a6; }

.catalog-card .service-title { font-weight: 600; font-size: 15px; margin-bottom: 6px; }
.catalog-card .service-desc { font-size: 13px; color: #8a94a6; margin-bottom: 12px; line-height: 1.4; }
.catalog-card .service-price { font-weight: 700; color: var(--neon-cyan); margin-bottom: 15px; font-size: 16px;}
.catalog-card .select-btn { 
    width: 100%;
    padding: 10px; 
    border-radius: 6px; 
    border: 1px solid var(--border-color); 
    background: rgba(255,255,255,0.03); 
    color: var(--nexus-white); 
    cursor: pointer; 
    font-size: 13px; 
    font-weight: 500;
    transition: 0.3s; 
}
.catalog-card .select-btn:hover { background: rgba(0, 240, 255, 0.1); border-color: var(--neon-cyan); color: var(--neon-cyan); }

/* Panel de Reserva */
.reservation-panel { display: flex; flex-direction: column; gap: 24px; }
.panel-card { 
    background: var(--card-bg); 
    backdrop-filter: blur(12px);
    border-radius: var(--border-radius); 
    padding: 30px; 
    border: 1px solid var(--border-color); 
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}
.panel-card h3 { font-size: 18px; margin-bottom: 25px; font-weight: 600; color: var(--nexus-white); display: flex; align-items: center; gap: 10px;}

.form-group { margin-bottom: 20px; }
.form-group label, .hours-label { display: block; font-size: 13px; color: #8a94a6; margin-bottom: 8px; font-weight: 500;}
.dark-select { 
    width: 100%; 
    padding: 14px; 
    background-color: #0f141f; 
    border: 1px solid var(--border-color); 
    color: var(--nexus-white); 
    border-radius: 8px; 
    font-family: inherit;
    font-size: 14px;
    cursor: pointer;
    outline: none;
    transition: 0.3s;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%238a94a6%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right 15px top 50%;
    background-size: 10px auto;
}
.dark-select:focus { border-color: var(--neon-cyan); box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.1); }
.dark-select option { background-color: #0f141f; color: white; padding: 10px; }

.calendar-visual { 
    font-size: 14px; color: #8a94a6; text-align: center; border: 1px solid var(--border-color); 
    border-radius: 8px; padding: 20px; margin-bottom: 20px; background: rgba(0,0,0,0.2); 
    display: flex; justify-content: center; align-items: center; gap: 8px;
}
.cal-icon { font-size: 18px; }

.hours-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 25px;}
.hour-btn { padding: 10px; font-size: 13px; font-weight: 500; background: rgba(255,255,255,0.03); border: 1px solid var(--border-color); color: #e2e8f0; border-radius: 6px; cursor: pointer; transition: all 0.2s; }
.hour-btn:hover { background: rgba(255,255,255,0.08); border-color: #5a657c; }
.hour-btn.selected { background-color: rgba(0, 240, 255, 0.1); border-color: var(--neon-cyan); color: var(--neon-cyan); box-shadow: 0 0 15px rgba(0, 240, 255, 0.15); }

.confirm-btn { width: 100%; padding: 16px; border-radius: 8px; font-weight: 700; }

.contact-panel { border-top: 3px solid var(--nexus-blue); padding: 25px 30px;}
.contact-btn { width: 100%; padding: 14px; margin-bottom: 12px; border-radius: 8px; border: 1px solid var(--border-color); background: rgba(255,255,255,0.02); color: #e2e8f0; cursor: pointer; font-size: 14px; font-weight: 500; text-align: left; transition: 0.3s; }
.contact-btn:hover { background-color: rgba(255,255,255,0.06); transform: translateX(5px); border-color: rgba(255,255,255,0.2);}
.contact-btn:last-child { margin-bottom: 0; }

.features-extra { margin-top: 40px; padding-top: 40px; border-top: 1px solid var(--border-color); }
.features-extra h2 { text-align: center; margin-bottom: 30px; font-size: 24px;}
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.feature-box { background: rgba(255,255,255,0.02); padding: 25px; border-radius: 12px; text-align: center; border: 1px solid transparent; transition: 0.3s;}
.feature-box:hover { border-color: var(--border-color); background: rgba(255,255,255,0.04);}
.f-icon { font-size: 30px; margin-bottom: 15px; }
.feature-box h4 { margin-bottom: 10px; color: var(--nexus-white); }
.feature-box p { font-size: 13px; color: #8a94a6; line-height: 1.5; }

/* Animaciones */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pulseGlow { 0% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.4); } 70% { box-shadow: 0 0 0 15px rgba(0, 240, 255, 0); } 100% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); } }
.animate-fade-in { animation: fadeIn 0.8s ease-out forwards; }
.animate-slide-up { opacity: 0; animation: slideUp 0.6s cubic-bezier(0.165, 0.84, 0.44, 1) forwards; }
.animate-slide-in-right { opacity: 0; animation: slideInRight 0.6s cubic-bezier(0.165, 0.84, 0.44, 1) forwards; }
.pulse-anim { animation: pulseGlow 2s infinite; }
.delay-1 { animation-delay: 0.1s; } .delay-2 { animation-delay: 0.2s; } .delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; } .delay-5 { animation-delay: 0.5s; } .delay-6 { animation-delay: 0.6s; }


/* ------------- RESPONSIVE (Tablets) ------------- */
@media (max-width: 992px) {
    .main-section { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .container { padding: 30px 5%; }
}

/* ------------- RESPONSIVE (Celulares - CORRECCIONES) ------------- */
@media (max-width: 768px) {
    /* Reparación del header aplastado */
    header { flex-direction: column; align-items: center; padding: 15px; gap: 15px; }
    .header-left { width: 100%; justify-content: space-between; gap: 10px; }
    .logo { font-size: 20px; }
    
    /* Separar el título superior */
    .hero { padding-top: 40px; margin-bottom: 40px; }
    .hero h1 { font-size: 32px; }
    
    /* Catálogo compacto de 2 columnas */
    .catalog-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .catalog-card { padding: 12px; }
    .catalog-card .placeholder-img { height: 80px; font-size: 10px; }
    .catalog-card .service-title { font-size: 13px; line-height: 1.2; }
    .catalog-card .service-desc { font-size: 11px; margin-bottom: 8px; }
    .catalog-card .service-price { font-size: 14px; margin-bottom: 10px; }
    .catalog-card .select-btn { padding: 8px; font-size: 11px; }
    
    .hours-grid { grid-template-columns: repeat(2, 1fr); }
}