/* ============================================
   WFM Integral — Estilos compartidos
   Base visual para index, diagnostico, erlang y pomodoro.
   Cada página define su tema de color en un <style> inline
   sobreescribiendo las variables --accent-*.
   ============================================ */

/* --- Reset --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

/* --- Variables base --- */
:root{
  --bg:#06090f;--bg2:#0b1120;--bg3:#101828;
  --surface:rgba(16,24,40,0.7);
  --border:rgba(56,189,248,0.08);--border-h:rgba(56,189,248,0.2);
  --cyan:#38bdf8;--cyan2:#0ea5e9;--cyan-glow:rgba(56,189,248,0.12);
  --amber:#f59e0b;--emerald:#34d399;--rose:#fb7185;--violet:#a78bfa;
  --text:#c1cee0;--text-dim:#6b7f99;--white:#eaf1f8;
  --font:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'JetBrains Mono',monospace;
  /* Variables semánticas de acento — defaults cyan, cada página sobreescribe */
  --accent:#38bdf8;
  --accent2:#0ea5e9;
  --accent-glow:rgba(56,189,248,0.12);
  --accent-soft:rgba(56,189,248,0.08);
  --accent-border:rgba(56,189,248,0.2);
}

/* --- Base --- */
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:.2s}
a:hover{color:var(--accent2)}

/* --- Fondo overlay --- */
body::before{
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse 800px 600px at 20% 10%,rgba(56,189,248,0.04),transparent),
    radial-gradient(ellipse 600px 400px at 80% 80%,rgba(245,158,11,0.03),transparent);
}

/* --- Scanline --- */
.scanline{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:repeating-linear-gradient(0deg,transparent,transparent 3px,rgba(56,189,248,0.008) 3px,rgba(56,189,248,0.008) 4px);
}

/* --- Contenido sobre fondo --- */
.content{position:relative;z-index:1}

/* --- Nav --- */
nav{
  position:fixed;top:0;width:100%;z-index:100;
  padding:14px 32px;display:flex;justify-content:space-between;align-items:center;
  background:rgba(6,9,15,0.92);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.logo{font-family:var(--mono);font-weight:700;font-size:15px;color:var(--white);display:flex;align-items:center;gap:10px;text-decoration:none}
.logo:hover{color:var(--white)}
.logo-mark{width:30px;height:30px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1}
.logo-text .lt-1{font-size:14px;color:var(--white);font-weight:700;letter-spacing:.5px}
.logo-text .lt-2{font-size:8px;color:var(--cyan);font-weight:500;letter-spacing:1.5px;margin-top:2px;text-transform:uppercase}
.logo-dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulse-dot 2s ease infinite}
@keyframes pulse-dot{0%,100%{opacity:1;box-shadow:0 0 12px var(--cyan)}50%{opacity:.5;box-shadow:0 0 4px var(--cyan)}}
.nav-r{display:flex;align-items:center;gap:28px}
.nav-r a{color:var(--text-dim);font-size:13px;font-weight:500}
.nav-r a:hover{color:var(--cyan)}
.nav-r a.active-page{color:var(--cyan)}
.nav-btn{
  background:transparent;border:1px solid var(--cyan);color:var(--cyan);
  padding:8px 20px;border-radius:6px;font-size:12px;font-weight:600;
  font-family:var(--mono);letter-spacing:.5px;cursor:pointer;transition:.3s;
}
.nav-btn:hover{background:var(--cyan);color:var(--bg)}

/* --- Hamburger --- */
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:4px;z-index:101}
.hamburger span{display:block;width:22px;height:2px;background:var(--white);margin:5px 0;border-radius:2px;transition:.3s}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* --- Botones --- */
.btn{padding:13px 24px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:.2s;border:none;font-family:var(--font)}
.btn-primary{background:var(--accent);color:var(--bg);box-shadow:0 4px 16px var(--accent-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 24px var(--accent-glow)}
.btn-primary:disabled{opacity:.35;cursor:default;transform:none;box-shadow:none}
.btn-secondary{background:rgba(255,255,255,0.06);color:var(--text);border:1px solid rgba(255,255,255,0.08)}
.btn-ghost{background:transparent;color:var(--text-dim);border:1px solid var(--border);font-size:13px}
.btn-fill{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:var(--bg);padding:15px 30px;
  border-radius:8px;font-weight:600;font-size:14px;border:none;cursor:pointer;
  transition:.3s;box-shadow:0 4px 20px var(--accent-glow);
}
.btn-fill:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow);color:var(--bg)}

/* --- Secondary links --- */
.secondary-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:16px 0 0}
.secondary-link,.secondary-link:visited,.secondary-link:focus{
  display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;
  border:1px solid var(--border);background:rgba(255,255,255,0.03);color:var(--text);
  font-size:12px;font-weight:600;text-decoration:none;transition:.2s;outline:none;
}
.secondary-link:hover{border-color:var(--accent-border);background:var(--accent-soft);color:var(--white)}
.secondary-link.active{border-color:var(--accent-border);background:var(--accent-soft);color:var(--white)}

/* --- Elementos de página reutilizables --- */
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:1.6px;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;border:1px solid var(--accent-border);background:var(--accent-soft);font-size:11px;color:var(--white);margin-bottom:12px}
.quick-note{margin:18px auto 0;max-width:620px;padding:14px 16px;border-radius:12px;border:1px solid var(--accent-border);background:var(--accent-soft);font-size:12px;color:var(--text-dim);line-height:1.6;text-align:left}
.quick-note strong{color:var(--white)}

/* --- CTA de cierre (usado en erlang, diagnostico, pomodoro) --- */
.closing-cta{margin:28px 0 8px}
.closing-cta-card{background:var(--surface);border:1px solid var(--accent-border);border-radius:16px;padding:28px 24px;text-align:center;position:relative;overflow:hidden}
.closing-cta-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.closing-cta-card h2{font-size:24px;color:var(--white);margin-bottom:10px}
.closing-cta-card p{max-width:620px;margin:0 auto 22px;color:var(--text-dim);font-size:14px;line-height:1.7}
.closing-cta-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.closing-cta-actions .btn,.closing-cta-actions a.btn{min-width:190px;justify-content:center;text-decoration:none}
.closing-cta-sub{margin-top:14px;font-size:12px;color:var(--text-dim)}
.closing-cta-profile{display:flex;align-items:center;justify-content:center;gap:12px;max-width:420px;margin:16px auto 0;padding-top:14px;border-top:1px solid rgba(255,255,255,0.06);text-align:left}
.closing-cta-profile img{width:52px;height:52px;border-radius:50%;object-fit:cover;border:1px solid var(--border);flex:0 0 52px}
.closing-cta-profile-text strong{display:block;color:var(--white);font-size:13px;margin-bottom:3px}
.closing-cta-profile-text span{display:block;color:var(--text-dim);font-size:12px;line-height:1.45}

/* --- Footer --- */
footer{text-align:center;padding:40px 32px;border-top:1px solid var(--border);font-size:12px;color:var(--text-dim);position:relative;z-index:1}

/* --- Modal de contacto --- */
.modal-overlay{
  position:fixed;inset:0;z-index:1000;
  background:rgba(6,9,15,0.85);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;padding:20px;
  opacity:0;transition:opacity .3s ease;
}
.modal-overlay.open{display:flex;opacity:1}
.modal-card{
  background:var(--bg2);border:1px solid var(--accent-border);border-radius:16px;
  max-width:480px;width:100%;padding:32px 28px;position:relative;
  transform:scale(.96);transition:transform .3s ease;
  box-shadow:0 30px 80px rgba(0,0,0,0.6);
  max-height:90vh;overflow-y:auto;
}
.modal-overlay.open .modal-card{transform:scale(1)}
.modal-close{
  position:absolute;top:16px;right:16px;
  background:transparent;border:none;color:var(--text-dim);
  font-size:24px;cursor:pointer;width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;border-radius:6px;
  transition:.2s;font-family:var(--font);
}
.modal-close:hover{background:rgba(255,255,255,0.05);color:var(--white)}
.modal-tag{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:10px}
.modal-card h3{font-size:22px;font-weight:700;color:var(--white);margin-bottom:8px;line-height:1.3}
.modal-card>p{font-size:13px;color:var(--text-dim);margin-bottom:22px;line-height:1.6}
.modal-form{display:flex;flex-direction:column;gap:12px}
.modal-form input,.modal-form textarea,.modal-form select{
  width:100%;padding:12px 14px;border-radius:8px;
  border:1px solid rgba(255,255,255,0.1);background:rgba(255,255,255,0.04);
  color:var(--white);font-size:14px;font-family:var(--font);
  transition:.2s;-webkit-appearance:none;
}
.modal-form input:focus,.modal-form textarea:focus,.modal-form select:focus{
  outline:none;border-color:var(--accent);background:var(--accent-soft);
}
.modal-form input::placeholder,.modal-form textarea::placeholder{color:var(--text-dim)}
.modal-form textarea{resize:vertical;min-height:100px;font-family:var(--font)}
.modal-form button{
  margin-top:6px;padding:14px;border:none;border-radius:8px;
  background:var(--accent);color:var(--bg);font-size:14px;font-weight:700;
  font-family:var(--font);cursor:pointer;transition:.3s;
  box-shadow:0 4px 16px var(--accent-glow);
}
.modal-form button:hover{transform:translateY(-1px);box-shadow:0 6px 24px var(--accent-glow)}
.modal-success{text-align:center;padding:20px 0}
.modal-success .ms-icon{font-size:48px;margin-bottom:12px}
.modal-success h4{font-size:18px;color:var(--white);margin-bottom:8px;font-weight:700}
.modal-success p{font-size:13px;color:var(--text-dim);line-height:1.6}

/* --- Animaciones de scroll --- */
@keyframes fadeIn{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.anim{opacity:0;animation:fadeIn .6s ease forwards}
.d1{animation-delay:.1s}.d2{animation-delay:.2s}.d3{animation-delay:.3s}.d4{animation-delay:.4s}

/* --- Accesibilidad: solo para lectores de pantalla --- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* --- Responsive: nav mobile --- */
@media(max-width:600px){
  nav{padding:12px 16px}
  .hamburger{display:block}
  .nav-r{
    display:none;flex-direction:column;position:absolute;top:100%;left:0;right:0;
    background:rgba(6,9,15,0.97);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);padding:16px 20px;gap:0;
  }
  .nav-r.open{display:flex}
  .nav-r a{padding:12px 0;font-size:14px;border-bottom:1px solid rgba(255,255,255,0.04);width:100%}
  .nav-r a:last-child{border-bottom:none}
  .nav-r .nav-btn{margin-top:8px;text-align:center;display:block;padding:12px 20px}
  .secondary-links{justify-content:flex-start;overflow:auto;padding-bottom:4px;flex-wrap:nowrap}
  .secondary-link{white-space:nowrap}
  footer{padding:28px 16px}
}

/* --- Responsive: modal mobile --- */
@media(max-width:500px){
  .modal-card{padding:24px 20px}
  .modal-card h3{font-size:18px}
}