/*
 * ================================================================
 *  PROYECTO  : Página de perfil — Dr. Igor Antonio Rivera González
 *  ARCHIVO   : dr_igor.css
 *  MÓDULO    : dr_igor_custom  (Odoo 18)
 *  RUTA ODOO : dr_igor_custom/static/src/css/dr_igor.css
 *  AUTOR     : Módulo personalizado UPIICSA-IPN
 *  VERSIÓN   : 1.0.0
 * ================================================================
 *
 *  TABLA DE CONTENIDO
 *  ──────────────────────────────────────────────────────────────
 *  01. TOKENS          Variables CSS (colores, tipografía, sombras)
 *  02. RESET           Normalización base
 *  03. NAV             Barra de navegación fija
 *  04. HERO            Sección principal con foto e información
 *  05. SECCIONES       Estilos comunes de sección
 *  06. RESUMEN         Tarjeta de resumen profesional
 *  07. ESTADÍSTICAS    Grid de métricas con contador animado
 *  08. LÍNEAS          Tarjetas de líneas de investigación
 *  09. FORMACIÓN       Timeline de grados y estancias
 *  10. PROYECTOS       Grid de proyectos de investigación
 *  11. PUBLICACIONES   Lista con buscador y filtros
 *  12. TESIS           Tabs por nivel académico
 *  13. REDES           Badges de redes científicas
 *  14. CONTACTO        Datos de contacto y formulario
 *  15. FOOTER          Pie de página con logos institucionales
 *  16. ANIMACIONES     Clases reveal para scroll
 *  17. RESPONSIVE      Media queries mobile/tablet
 * ================================================================
 */

/* ═══════════════════════════════════════
   TOKENS
═══════════════════════════════════════ */
:root{
  --ink:        #0d1117;
  --ink-2:      #1e2834;
  --ink-3:      #3d4f62;
  --muted:      #6b7c93;
  --border:     #d0d9e4;
  --surface:    #f5f7fa;
  --white:      #ffffff;
  --gold:       #9a6f2e;
  --gold-light: #f0e4c8;
  --gold-pale:  #faf6ee;
  --blue:       #1a4580;
  --blue-mid:   #2563a8;
  --blue-pale:  #edf2fb;
  --accent:     #c8102e; /* IPN rojo */
  --r:          6px;
  --r-lg:       14px;
  --shadow-sm:  0 1px 4px rgba(0,0,0,.06);
  --shadow-md:  0 4px 20px rgba(0,0,0,.09);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.12);
  --font-serif: 'EB Garamond', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;
  --font-mono:  'JetBrains Mono', monospace;
}

/* ═══════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-sans);color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* ═══════════════════════════════════════
   NAV
═══════════════════════════════════════ */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  padding:0 clamp(20px,5vw,80px);
  height:60px;
  display:flex;align-items:center;justify-content:space-between;
  transition:box-shadow .3s;
}
nav.scrolled{box-shadow:var(--shadow-md)}
.nav-logo{
  font-family:var(--font-serif);font-size:1.1rem;font-weight:500;
  color:var(--blue);letter-spacing:-.01em;
}
.nav-logo span{color:var(--accent);font-style:italic;}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{
  font-size:.78rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-3);transition:color .2s;
}
.nav-links a:hover{color:var(--blue)}
.nav-cta{
  background:var(--blue);color:#fff!important;
  padding:7px 18px;border-radius:var(--r);
  font-size:.75rem!important;
}
.nav-cta:hover{background:var(--blue-mid)!important}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* ═══════════════════════════════════════
   HERO
═══════════════════════════════════════ */
.hero{
  min-height:100vh;
  background:linear-gradient(160deg, var(--ink) 0%, var(--blue) 55%, #1a5285 100%);
  display:flex;align-items:center;
  padding:100px clamp(20px,6vw,100px) 60px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}
.hero-grid{
  max-width:1200px;width:100%;margin:0 auto;
  display:grid;grid-template-columns:1fr 340px;gap:60px;align-items:center;
  position:relative;z-index:1;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;
  color:rgba(255,255,255,.55);letter-spacing:.12em;text-transform:uppercase;
  margin-bottom:20px;
}
.hero-eyebrow::before{content:'';width:24px;height:1px;background:var(--gold)}
.hero-name{
  font-family:var(--font-serif);
  font-size:clamp(2.6rem,5vw,4rem);
  font-weight:400;line-height:1.08;
  color:#fff;margin-bottom:20px;letter-spacing:-.02em;
}
.hero-name em{color:var(--gold-light);font-style:normal;font-weight:500}
.hero-title{
  font-size:1rem;color:rgba(255,255,255,.75);
  margin-bottom:8px;font-weight:300;letter-spacing:.01em;
}
.hero-inst{
  display:flex;align-items:center;gap:8px;
  font-size:.85rem;color:rgba(255,255,255,.6);margin-bottom:6px;
}
.hero-inst svg{width:14px;height:14px;opacity:.6;flex-shrink:0}
.hero-ids{
  display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 32px;
}
.hero-id{
  font-family:var(--font-mono);font-size:.68rem;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);
  color:rgba(255,255,255,.8);padding:4px 10px;border-radius:20px;
  letter-spacing:.04em;
}
.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--gold);color:#fff;
  padding:12px 24px;border-radius:var(--r);
  font-size:.85rem;font-weight:500;transition:all .2s;
}
.btn-primary:hover{background:#7d5820;transform:translateY(-1px);box-shadow:0 6px 20px rgba(154,111,46,.4)}
.btn-secondary{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);color:#fff;
  border:1px solid rgba(255,255,255,.25);
  padding:12px 24px;border-radius:var(--r);
  font-size:.85rem;font-weight:400;transition:all .2s;
}
.btn-secondary:hover{background:rgba(255,255,255,.18)}
.hero-photo-wrap{
  display:flex;flex-direction:column;align-items:center;gap:20px;
}
.hero-photo{
  width:280px;height:320px;object-fit:cover;object-position:top;
  border-radius:var(--r-lg);
  border:3px solid rgba(255,255,255,.15);
  box-shadow:var(--shadow-lg);
}
.hero-sni{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);
  border-radius:var(--r);padding:12px 20px;text-align:center;width:100%;
}
.hero-sni-label{font-size:.65rem;color:rgba(255,255,255,.5);letter-spacing:.1em;text-transform:uppercase;margin-bottom:2px}
.hero-sni-value{font-family:var(--font-serif);font-size:1.1rem;color:var(--gold-light);font-weight:500}

/* ═══════════════════════════════════════
   SECTIONS BASE
═══════════════════════════════════════ */
section{padding:80px clamp(20px,6vw,100px)}
.section-inner{max-width:1200px;margin:0 auto}
.section-eyebrow{
  font-family:var(--font-mono);font-size:.7rem;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--blue);
  margin-bottom:10px;
}
.section-title{
  font-family:var(--font-serif);font-size:clamp(1.8rem,3vw,2.6rem);
  font-weight:400;color:var(--ink);letter-spacing:-.02em;margin-bottom:40px;
  line-height:1.15;
}
.section-title span{color:var(--blue)}

/* ═══════════════════════════════════════
   RESUMEN
═══════════════════════════════════════ */
.resumen{background:var(--surface)}
.resumen-card{
  background:var(--white);border-radius:var(--r-lg);
  border:1px solid var(--border);
  padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
  box-shadow:var(--shadow-md);
}
.resumen-text{
  font-family:var(--font-serif);font-size:1.18rem;
  color:var(--ink-2);line-height:1.7;
}
.resumen-text p+p{margin-top:16px}
.resumen-highlights{display:flex;flex-direction:column;gap:16px}
.resumen-item{
  padding:16px 20px;border-radius:var(--r);
  background:var(--blue-pale);border-left:3px solid var(--blue);
}
.resumen-item-label{
  font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--blue);font-weight:600;margin-bottom:4px;
}
.resumen-item-value{font-size:.9rem;color:var(--ink-2);font-weight:500}

/* ═══════════════════════════════════════
   ESTADÍSTICAS
═══════════════════════════════════════ */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-card{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:28px 24px;
  text-align:center;box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s;
  cursor:default;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stat-number{
  font-family:var(--font-serif);
  font-size:2.8rem;font-weight:500;
  color:var(--blue);line-height:1;margin-bottom:6px;
}
.stat-label{
  font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);font-weight:500;
}
.stat-card.highlight .stat-number{color:var(--accent)}

/* ═══════════════════════════════════════
   LÍNEAS
═══════════════════════════════════════ */
.lineas{background:var(--surface)}
.lineas-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.linea-card{
  background:var(--white);border-radius:var(--r-lg);
  border:1px solid var(--border);padding:28px 24px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.linea-card:hover{
  transform:translateY(-3px);box-shadow:var(--shadow-lg);
  border-color:var(--blue);
}
.linea-icon{
  width:48px;height:48px;border-radius:var(--r);
  background:var(--blue-pale);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;font-size:1.4rem;
}
.linea-title{
  font-family:var(--font-serif);font-size:1.1rem;
  color:var(--ink);font-weight:500;margin-bottom:8px;
}
.linea-desc{font-size:.85rem;color:var(--muted);line-height:1.55}

/* ═══════════════════════════════════════
   FORMACIÓN / TIMELINE
═══════════════════════════════════════ */
.timeline{position:relative;padding-left:32px}
.timeline::before{
  content:'';position:absolute;left:7px;top:6px;bottom:6px;
  width:2px;background:linear-gradient(to bottom, var(--blue), var(--border));
  border-radius:2px;
}
.timeline-item{position:relative;margin-bottom:36px}
.timeline-dot{
  position:absolute;left:-29px;top:4px;
  width:14px;height:14px;border-radius:50%;
  background:var(--blue);border:3px solid var(--white);
  box-shadow:0 0 0 2px var(--blue);
}
.timeline-dot.gold{background:var(--gold);box-shadow:0 0 0 2px var(--gold)}
.timeline-year{
  font-family:var(--font-mono);font-size:.68rem;color:var(--muted);
  letter-spacing:.1em;margin-bottom:4px;
}
.timeline-degree{
  font-family:var(--font-serif);font-size:1.1rem;
  color:var(--ink);font-weight:500;margin-bottom:2px;
}
.timeline-inst{font-size:.85rem;color:var(--blue-mid);margin-bottom:4px;font-weight:500}
.timeline-thesis{font-size:.82rem;color:var(--muted);font-style:italic;line-height:1.5}

/* ═══════════════════════════════════════
   PROYECTOS
═══════════════════════════════════════ */
.proyectos{background:var(--surface)}
.proyectos-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.proyecto-card{
  background:var(--white);border-radius:var(--r-lg);
  border:1px solid var(--border);padding:28px;
  transition:box-shadow .25s;
}
.proyecto-card:hover{box-shadow:var(--shadow-lg)}
.proyecto-anio{
  font-family:var(--font-mono);font-size:.65rem;letter-spacing:.1em;
  color:var(--blue);text-transform:uppercase;margin-bottom:6px;
}
.proyecto-title{
  font-family:var(--font-serif);font-size:1rem;
  color:var(--ink);font-weight:500;margin-bottom:8px;line-height:1.4;
}
.proyecto-fuente{
  font-size:.78rem;color:var(--muted);
  background:var(--surface);padding:3px 8px;border-radius:4px;
  display:inline-block;
}

/* ═══════════════════════════════════════
   PUBLICACIONES
═══════════════════════════════════════ */
.pub-filters{
  display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px;
}
.pub-filter{
  padding:6px 16px;border-radius:20px;font-size:.78rem;
  border:1px solid var(--border);background:var(--white);
  color:var(--ink-3);cursor:pointer;transition:.2s;
  font-family:var(--font-sans);
}
.pub-filter.active,.pub-filter:hover{
  background:var(--blue);color:#fff;border-color:var(--blue);
}
.pub-search{
  position:relative;margin-bottom:24px;
}
.pub-search input{
  width:100%;padding:10px 16px 10px 40px;
  border:1px solid var(--border);border-radius:var(--r);
  font-size:.88rem;font-family:var(--font-sans);
  color:var(--ink);background:var(--white);outline:none;
  transition:border-color .2s;
}
.pub-search input:focus{border-color:var(--blue)}
.pub-search svg{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--muted);pointer-events:none;
}
.pub-list{display:flex;flex-direction:column;gap:0}
.pub-item{
  padding:20px 0;border-bottom:1px solid var(--border);
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
}
.pub-item:last-child{border-bottom:none}
.pub-year{
  font-family:var(--font-mono);font-size:.75rem;
  color:var(--muted);width:40px;padding-top:2px;
}
.pub-title{font-size:.9rem;color:var(--ink);font-weight:500;line-height:1.45;margin-bottom:4px}
.pub-meta{font-size:.78rem;color:var(--muted);line-height:1.4}
.pub-badges{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.pub-badge{
  font-family:var(--font-mono);font-size:.6rem;letter-spacing:.06em;
  padding:2px 7px;border-radius:3px;
  background:var(--blue-pale);color:var(--blue);
}
.pub-badge.scopus{background:#f0f8e8;color:#3a7d0a}
.pub-badge.wos{background:#fff0e0;color:#a05800}
.pub-badge.cairn{background:#f5eaff;color:#6a2fa0}

/* ═══════════════════════════════════════
   TESIS
═══════════════════════════════════════ */
.tesis{background:var(--surface)}
.tesis-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:32px}
.tesis-tab{
  padding:10px 24px;font-size:.82rem;font-weight:500;
  color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;
  margin-bottom:-2px;transition:.2s;letter-spacing:.02em;
}
.tesis-tab.active{color:var(--blue);border-bottom-color:var(--blue)}
.tesis-panel{display:none}
.tesis-panel.active{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.tesis-card{
  background:var(--white);border-radius:var(--r);
  border:1px solid var(--border);padding:20px;
  transition:box-shadow .2s;
}
.tesis-card:hover{box-shadow:var(--shadow-md)}
.tesis-anio{
  font-family:var(--font-mono);font-size:.65rem;letter-spacing:.1em;
  color:var(--muted);margin-bottom:4px;
}
.tesis-alumno{font-size:.9rem;font-weight:600;color:var(--ink);margin-bottom:4px}
.tesis-titulo{font-size:.82rem;color:var(--muted);line-height:1.45;font-style:italic}
.tesis-distincion{
  display:inline-block;margin-top:8px;
  font-size:.65rem;padding:2px 8px;border-radius:3px;
  background:var(--gold-light);color:var(--gold);font-weight:600;letter-spacing:.05em;
}

/* ═══════════════════════════════════════
   REDES CIENTÍFICAS
═══════════════════════════════════════ */
.redes{background:var(--ink)}
.redes .section-eyebrow{color:rgba(255,255,255,.4)}
.redes .section-title{color:#fff}
.redes-grid{display:flex;flex-wrap:wrap;gap:16px}
.red-badge{
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-lg);padding:16px 24px;
  transition:.25s;cursor:pointer;text-decoration:none;
}
.red-badge:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.red-badge-icon{font-size:1.5rem}
.red-badge-info{}
.red-badge-name{
  font-size:.88rem;font-weight:500;color:#fff;margin-bottom:1px;
}
.red-badge-id{font-family:var(--font-mono);font-size:.68rem;color:rgba(255,255,255,.45)}

/* ═══════════════════════════════════════
   CONFERENCIAS
═══════════════════════════════════════ */
.conf-list{display:flex;flex-direction:column;gap:0}
.conf-item{
  display:grid;grid-template-columns:80px 1fr;gap:20px;
  padding:18px 0;border-bottom:1px solid var(--border);
  align-items:start;
}
.conf-item:last-child{border-bottom:none}
.conf-anio{
  font-family:var(--font-mono);font-size:.78rem;color:var(--blue);
  font-weight:500;padding-top:2px;
}
.conf-titulo{font-size:.88rem;color:var(--ink);font-weight:500;margin-bottom:3px;line-height:1.4}
.conf-lugar{font-size:.78rem;color:var(--muted)}

/* ═══════════════════════════════════════
   CONTACTO
═══════════════════════════════════════ */
.contacto{background:var(--surface)}
.contacto-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.contacto-info{display:flex;flex-direction:column;gap:20px}
.contacto-item{
  display:flex;align-items:flex-start;gap:14px;
}
.contacto-item-icon{
  width:40px;height:40px;border-radius:var(--r);
  background:var(--blue-pale);color:var(--blue);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.contacto-item-text{}
.contacto-item-label{font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.contacto-item-value{font-size:.9rem;color:var(--ink);font-weight:500}
.form-grid{display:flex;flex-direction:column;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-field{display:flex;flex-direction:column;gap:5px}
.form-field label{font-size:.75rem;font-weight:500;color:var(--ink-3);letter-spacing:.03em}
.form-field input,
.form-field textarea{
  padding:10px 14px;
  border:1px solid var(--border);border-radius:var(--r);
  font-size:.88rem;font-family:var(--font-sans);
  color:var(--ink);background:var(--white);outline:none;
  transition:border-color .2s;resize:vertical;
}
.form-field input:focus,
.form-field textarea:focus{border-color:var(--blue)}
.form-submit{
  background:var(--blue);color:#fff;
  border:none;padding:12px 28px;border-radius:var(--r);
  font-size:.88rem;font-weight:500;cursor:pointer;
  transition:background .2s,transform .15s;font-family:var(--font-sans);
  align-self:flex-start;
}
.form-submit:hover{background:var(--blue-mid);transform:translateY(-1px)}

/* ═══════════════════════════════════════
   FOOTER
═══════════════════════════════════════ */
footer{
  background:var(--ink-2);color:rgba(255,255,255,.5);
  padding:40px clamp(20px,6vw,100px);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px;
}
.footer-logos{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.footer-logo{
  font-family:var(--font-serif);font-size:1rem;
  color:rgba(255,255,255,.8);font-style:italic;
}
.footer-logo span{font-style:normal;font-size:.7rem;display:block;color:rgba(255,255,255,.4);margin-top:1px}
footer p{font-size:.75rem}

/* ═══════════════════════════════════════
   REVEAL ANIMATIONS
═══════════════════════════════════════ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}

/* ═══════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════ */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;text-align:center}
  .hero-photo-wrap{align-items:center;order:-1}
  .hero-inst{justify-content:center}
  .hero-ids{justify-content:center}
  .hero-buttons{justify-content:center}
  .hero-eyebrow{justify-content:center}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .lineas-grid{grid-template-columns:repeat(2,1fr)}
  .resumen-card{grid-template-columns:1fr}
  .proyectos-grid{grid-template-columns:1fr}
  .contacto-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  nav .nav-links{display:none}
  nav .nav-links.open{
    display:flex;flex-direction:column;
    position:fixed;top:60px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--border);
    padding:20px;gap:16px;box-shadow:var(--shadow-md);
  }
  .hamburger{display:flex}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .lineas-grid{grid-template-columns:1fr}
  .tesis-panel.active{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero-photo{width:220px;height:250px}
}