fix(light-mode): legibilidad completa — opacidades, colores y fondos

- Hero: tagline opacity 1, color #334155; hero-name-accent filter reducido
- Terminal: prompt/cmd/out con colores oscuros legibles
- HUD card: hud-key, hud-title-text, hud-badge sin opacity — color #0369a1
- Skills: sd-title #0f172a, sd-sub #475569, sd-badge morado→indigo oscuro
- Projects: pc-desc #334155, pc-market #475569, pc-tech bg #f1f5f9
- Contact: cf-label/cf-title opacity 1, input bg #f8fafc sólido
- Nav: nav-num con color legible

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: devsart95

src/index.css

@@ -1020,6 +1020,61 @@ footer p { font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--m
 [data-theme="light"] .section-tag { color: #0284c7; }
 [data-theme="light"] .section-tag svg { stroke: #0284c7; }
 
+/* ── LIGHT MODE — correcciones de opacidad y legibilidad ── */
+
+/* Hero */
+[data-theme="light"] .hero-tagline-sub { opacity: 1; color: #334155; }
+[data-theme="light"] .hero-name-accent {
+  filter: drop-shadow(0 0 18px rgba(2,132,199,.18));
+}
+[data-theme="light"] .hero-role-sep { color: #94a3b8; }
+
+/* Terminal */
+[data-theme="light"] .terminal-prompt { opacity: 1; color: #4f46e5; }
+[data-theme="light"] .terminal-cmd    { color: #0284c7; }
+[data-theme="light"] .terminal-out    { color: #475569; }
+
+/* HUD card — sin opacidades que difuminan */
+[data-theme="light"] .hud-key        { opacity: 1; color: #0369a1; }
+[data-theme="light"] .hud-key::before{ color: #64748b; opacity: 1; }
+[data-theme="light"] .hud-title-text { opacity: 1; color: #0369a1; }
+[data-theme="light"] .hud-badge      { opacity: 1; color: #0369a1; border-color: rgba(3,105,161,.3); }
+[data-theme="light"] .hud-scan {
+  background: linear-gradient(90deg, transparent, rgba(2,132,199,.25), transparent);
+}
+
+/* Skills */
+[data-theme="light"] .sd-title  { color: #0f172a; }
+[data-theme="light"] .sd-sub    { color: #475569; }
+[data-theme="light"] .sd-badge  {
+  color: #4f46e5;
+  border-color: rgba(79,70,229,.35);
+  background: rgba(79,70,229,.07);
+}
+[data-theme="light"] .skill-domain { border-color: rgba(15,23,42,.1); }
+
+/* Projects */
+[data-theme="light"] .pc-desc   { color: #334155; }
+[data-theme="light"] .pc-market { color: #475569; }
+[data-theme="light"] .pc-tech   { background: #f1f5f9; color: #334155; border-color: rgba(15,23,42,.12); }
+
+/* Contact form */
+[data-theme="light"] .cf-label  { opacity: 1; color: #0369a1; }
+[data-theme="light"] .cf-title  { opacity: 1; color: #0369a1; }
+[data-theme="light"] .cf-title-line { background: linear-gradient(90deg, rgba(2,132,199,.25), transparent); }
+[data-theme="light"] .cf-input  { background: #f8fafc; }
+[data-theme="light"] .cf-spinner {
+  border-color: rgba(255,255,255,.4);
+  border-top-color: #fff;
+}
+[data-theme="light"] .cf-thanks-sub { color: #475569; }
+
+/* Social cards */
+[data-theme="light"] .social-card:hover { border-color: rgba(15,23,42,.18); }
+
+/* Misc */
+[data-theme="light"] .nav-num { opacity: 0.7; color: #64748b; }
+
 /* ── LANG SELECTOR ────────────────────────────────── */
 .lang-selector {
   position: fixed;