/* Variables globales */
:root {
    --bg-dark: #040814;
    --bg-card: #0a122c;
    --accent-blue: #0D5A97;
    --accent-green: #0d1588;
    --accent-green-glow: #4688b4;
    --whatsapp-color: #2576d3;
    --text-main: #ffffff;
    --text-muted: #a0aec0;
    --font-title: 'Syncopate', sans-serif;
    --font-body: 'Exo 2', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    overflow-x: hidden; /* Oculta barras horizontales, pero permite a GSAP leer el scroll vertical */
    position: relative;
}
body.is-animating { overflow: hidden !important; }

/* Fondo y cuadricula base (actúa como filtro sobre el carrusel en el home) */
.interactive-bg {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: radial-gradient(circle at 50% 50%, rgba(13, 37, 92, 0.7) 0%, rgba(4, 8, 20, 0.95) 80%);
    z-index: -2;
}

.grid-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px; z-index: -1; pointer-events: none;
}

.main-layout { padding-top: 100px; }
.page-content { padding-top: 120px; min-height: 100vh; }

/* Menú Superior */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; display: flex;
    justify-content: space-between; align-items: center; padding: 25px 50px;
    z-index: 1000; background: rgba(4, 8, 20, 0.85); backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo { font-family: var(--font-title); font-weight: 700; font-size: 1.2rem; letter-spacing: 2px; }
.logo span { color: var(--accent-green); font-weight: 400; }

.nav-links { display: flex; list-style: none; gap: 30px; }
.nav-link {
    color: var(--text-muted); text-decoration: none; font-family: var(--font-title);
    font-size: 0.85rem; letter-spacing: 1px; transition: color 0.3s ease; position: relative; padding-bottom: 5px;
}
.nav-link:hover, .nav-link.active { color: var(--text-main); }
.nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
    background-color: var(--accent-green); transition: width 0.3s ease;
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* Botones compartidos */
.btn-primary {
    display: inline-block; padding: 15px 35px; background-color: transparent; color: var(--text-main);
    font-family: var(--font-title); font-size: 0.8rem; letter-spacing: 2px; text-decoration: none;
    border: 1px solid var(--text-main); border-radius: 4px; transition: all 0.3s ease;
}
.btn-primary:hover { border-color: var(--accent-green-glow); box-shadow: 0 0 20px rgba(19, 216, 241, 0.63); }

.btn-whatsapp {
    display: inline-block; padding: 15px 35px; background-color: var(--whatsapp-color); color: #fff;
    font-family: var(--font-title); font-size: 0.8rem; font-weight: 700; letter-spacing: 1px;
    text-decoration: none; border-radius: 4px; transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover { transform: translateY(-3px); background-color: #1b50b3; box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5); }
.small-wa { padding: 10px 15px; font-size: 0.7rem; margin-top: 15px; text-align: center; width: 100%; }

/* Tipografía Compartida */
.text-gradient {
    background: linear-gradient(45deg, var(--text-main) 30%, var(--accent-blue) 70%, var(--accent-green) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.section-title { font-family: var(--font-title); font-size: 2.5rem; letter-spacing: 2px; margin-bottom: 15px; }
.section-subtitle { color: var(--text-muted); font-size: 1.1rem; }

.standard-footer {
    padding: 40px; text-align: center; border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem; color: var(--text-muted); margin-top: 50px;
}