/* --- VARIABLES Y TIPOGRAFÍA --- */
:root {
    --primary-dark: #1e293b;
    --primary-black: #0f172a;
    --accent-blue: #3b82f6;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-600: #475569;
    --slate-800: #1e293b;
    --white: #ffffff;
}

/* Usamos fuentes del sistema para no depender de Google Fonts */
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--slate-50);
    color: var(--slate-800);
    line-height: 1.6;
    overflow-x: hidden;
}

html { scroll-behavior: smooth; }

/* --- LAYOUT GENERAl --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    box-sizing: border-box;
}

.grid { display: grid; gap: 2rem; }
@media (min-width: 768px) {
    .grid-2 { grid-template-columns: 1fr 1fr; }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* --- HEADER Y NAV --- */
.gradient-bg {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-black) 100%);
    color: var(--white);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.navbar {
    position: absolute;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 50;
}

.nav-content { display: flex; align-items: center; gap: 1rem; }
.logo-wrap {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 4px;
    display: flex;
}

/* --- COMPONENTES --- */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-blue { background-color: var(--accent-blue); color: white; }
.btn-outline { background: rgba(255,255,255,0.1); color: white; border: 1px solid rgba(255,255,255,0.2); }
.btn:hover { transform: translateY(-2px); opacity: 0.9; }

.card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--slate-200);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover { transform: translateY(-10px); box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }

.icon-box {
    width: 50px;
    height: 50px;
    background: #eff6ff;
    color: var(--accent-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.accent-border {
    border-left: 4px solid var(--accent-blue);
    padding-left: 1.5rem;
    margin-bottom: 3rem;
}

.pill {
    padding: 0.5rem 1.2rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50px;
    font-size: 0.85rem;
}

/* --- ANIMACIONES SCROLL REVEAL --- */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease-out; }
.reveal-left { opacity: 0; transform: translateX(-30px); transition: all 0.8s ease-out; }
.active { opacity: 1; transform: translate(0); }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}
.animate-float { animation: float 6s ease-in-out infinite; }