/*
 |--------------------------------------------------------------------------
 | AUDAGRAMA — Sistema de Diseño Global
 | Fuentes: Syne (display) + Space Mono (técnico)
 |--------------------------------------------------------------------------
 */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Syne:wght@400;700;800&display=swap');

:root {
    --bg:        #121417;
    --bg2:       #0d0f11;
    --surface:   rgba(255,255,255,0.03);
    --border:    rgba(255,255,255,0.08);
    --white:     #FDFDFD;
    --gray:      #555;
    --gray-mid:  #999;
    --red:       #FF4C68;
    --font-d:    'Syne', sans-serif;
    --font-mono: 'Space Mono', monospace;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
    background:var(--bg);
    color:var(--white);
    font-family:var(--font-d);
    line-height:1.6;
    overflow-x:hidden;
    min-height:100vh;
    display:flex;
    flex-direction:column;
}
a { color:inherit; text-decoration:none; transition:color .2s; }

::-webkit-scrollbar { width:2px; }
::-webkit-scrollbar-track { background:var(--bg2); }
::-webkit-scrollbar-thumb { background:var(--red); }

body::before {
    content:'';
    position:fixed; inset:0;
    background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events:none; z-index:9999; opacity:.35;
}

/* ─── HEADER ─── */
.header {
    position:fixed; top:0; left:0; right:0; z-index:500;
    display:flex; justify-content:space-between; align-items:center;
    padding:1.75rem 4rem;
    background:rgba(18,20,23,.9);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
}
.logo {
    font-family:var(--font-d); font-weight:800; font-size:1.2rem;
    letter-spacing:.18em; text-transform:uppercase; color:var(--white);
}
.logo .accent { color:var(--red); }

.nav { display:flex; align-items:center; gap:2.5rem; }

.nav-link {
    font-family:var(--font-mono); font-size:.7rem;
    letter-spacing:.12em; text-transform:uppercase; color:var(--gray-mid);
}
.nav-link:hover, .nav-link.active { color:var(--white); }

.nav-cta {
    font-family:var(--font-mono); font-size:.7rem;
    letter-spacing:.12em; text-transform:uppercase;
    color:var(--red); border:1px solid var(--red);
    padding:.6rem 1.5rem; transition:all .3s;
}
.nav-cta:hover, .nav-cta.active { background:var(--red); color:var(--bg); }

.hamburger {
    display:none; flex-direction:column; gap:5px;
    cursor:pointer; background:none; border:none; padding:4px;
}
.hamburger span { display:block; width:22px; height:1.5px; background:var(--white); transition:all .3s; }

/* ─── SECTION HELPERS ─── */
main { flex:1; padding-top:6rem; }

.section-label {
    font-family:var(--font-mono); font-size:.65rem;
    letter-spacing:.22em; text-transform:uppercase;
    color:var(--red); margin-bottom:1.5rem;
    display:flex; align-items:center; gap:1rem;
}
.section-label::before { content:''; display:block; width:28px; height:1px; background:var(--red); }

.section-title {
    font-family:var(--font-d); font-weight:800;
    font-size:clamp(2.2rem,4vw,3.5rem);
    text-transform:uppercase; letter-spacing:-.01em;
    line-height:1.05; margin-bottom:1.5rem;
}
.section-sub {
    font-family:var(--font-mono); font-size:.82rem;
    color:var(--gray-mid); max-width:520px; line-height:1.9;
}

/* ─── BUTTONS ─── */
.btn-primary {
    display:inline-block; font-family:var(--font-mono);
    font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
    background:var(--red); color:var(--bg); padding:.85rem 2.4rem;
    font-weight:700; transition:opacity .2s;
}
.btn-primary:hover { opacity:.85; color:var(--bg); }

.btn-outline {
    display:inline-block; font-family:var(--font-mono);
    font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
    color:var(--red); border:1px solid var(--red);
    padding:.85rem 2.4rem; transition:all .3s;
}
.btn-outline:hover { background:var(--red); color:var(--bg); }

/* ─── FOOTER ─── */
.footer-global {
    border-top:1px solid var(--border);
    padding:2rem 4rem;
    display:flex; justify-content:space-between; align-items:center;
    font-family:var(--font-mono); font-size:.65rem;
    letter-spacing:.1em; text-transform:uppercase;
    color:var(--gray); margin-top:auto;
}
.footer-global .footer-links { display:flex; gap:2rem; }
.footer-global a { color:var(--gray); }
.footer-global a:hover { color:var(--white); }

/* ─── MOBILE ─── */
@media (max-width:900px) {
    .header { padding:1.25rem 1.5rem; }
    .nav { display:none; }
    .nav.open {
        display:flex; flex-direction:column;
        position:fixed; inset:0;
        background:var(--bg);
        align-items:center; justify-content:center;
        gap:2.5rem; z-index:499;
    }
    .nav.open .nav-link, .nav.open .nav-cta { font-size:1rem; letter-spacing:.15em; }
    .hamburger { display:flex; z-index:501; }
    .footer-global { flex-direction:column; gap:1rem; text-align:center; padding:2rem; }
}