/* ═══════════════════════════════════════════════
   STN — base.css
   Solo variables de tema y clases que Tailwind
   no puede manejar directamente
   ═══════════════════════════════════════════════ */

/* ── TEMA OSCURO ── */
:root {
  --bg:           #0a0b0e;
  --bg2:          #111318;
  --bg3:          #181c24;
  --surface:      #1e2330;
  --border:       rgba(255,255,255,0.07);
  --text:         #f0f2f7;
  --text2:        #8b92a8;
  --text3:        #555d75;
  --accent:       #0257e5;
  --accent2:      #52cb06;
  --accent-rgb:   2,87,229;
  --nav-bg:       rgba(10,11,14,0.92);
  --card-bg:      #1e2330;
  --section-alt:  #111318;
  --input-bg:     #181c24;
}

/* ── TEMA CLARO ── */
[data-theme="light"] {
  --bg:           #f5f4f0;
  --bg2:          #eeede9;
  --bg3:          #e5e3dd;
  --surface:      #ffffff;
  --border:       rgba(0,0,0,0.08);
  --text:         #111318;
  --text2:        #4a5168;
  --text3:        #9099b2;
  --accent:       #0257e5;
  --accent2:      #52cb06;
  --accent-rgb:   2,87,229;
  --nav-bg:       rgba(245,244,240,0.94);
  --card-bg:      #ffffff;
  --section-alt:  #eeede9;
  --input-bg:     #e5e3dd;
}

/* ── BASE ── */
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); transition: background .4s, color .4s; overflow-x: hidden; }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* ── NAV LINKS ── */
.nav-link {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .8rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; text-decoration: none;
  color: var(--text2); padding: .4rem .75rem; border-radius: 4px;
  transition: all .3s; position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: 0; left: 50%; right: 50%;
  height: 1.5px; background: var(--accent); transition: all .3s;
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after, .nav-link.nav-active::after { left: .75rem; right: .75rem; }
.nav-link.nav-active { color: var(--accent); }

.mobile-link {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1rem; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; text-decoration: none;
  color: var(--text2); padding: .75rem 1rem; border-radius: 8px;
  transition: all .3s; display: block;
}
.mobile-link:hover, .mobile-link.nav-active { color: var(--accent); background: rgba(var(--accent-rgb),.05); }

.footer-link {
  font-size: .85rem; color: var(--text2); text-decoration: none;
  font-weight: 300; transition: all .3s;
  display: flex; align-items: center; gap: .4rem;
}
.footer-link::before { content: '→'; font-size: .65rem; }
.footer-link:hover { color: var(--accent); gap: .6rem; }

/* ── HAMBURGER ABIERTO ── */
.menu-open .ham-1 { transform: translateY(6.5px) rotate(45deg); }
.menu-open .ham-2 { opacity: 0; }
.menu-open .ham-3 { transform: translateY(-6.5px) rotate(-45deg); }

/* ── HERO GRID BACKGROUND ── */
.hero-grid {
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
                    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 100% 80% at 50% 50%, black 30%, transparent 80%);
}

/* ── STAT CARD borde izquierdo ── */
.stat-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--accent); border-radius: 12px 0 0 12px;
}

/* ── ACORDEÓN ── */
.serv-body { max-height: 0; overflow: hidden; transition: max-height .4s ease; }

/* ── SECTION ALTERNADA ── */
.section-alt { background: var(--section-alt); }

/* ── MAPA SVG ── */
.mexico-svg { width: 90%; height: 90%; padding: 1rem; }

/* ── INPUTS ── */
input, textarea, select {
  background: var(--input-bg); border: 1px solid var(--border);
  color: var(--text); font-family: 'Barlow', sans-serif;
  transition: all .3s; -webkit-appearance: none; outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: rgba(var(--accent-rgb),.6);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb),.08);
}
select option { background: var(--bg2); }

/* ── CARD HOVER LINE ── */
.card-line::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0); transform-origin: left; transition: all .35s;
}
.card-line:hover::after { transform: scaleX(1); }