/* ═══════════════════════════════════════════════════════════════
   Evaluación de Proyectos — Hub
   Instituto Leonardo Murialdo · 7mo Informática 2026
   style.css
   ═══════════════════════════════════════════════════════════════ */

/* ── TOKENS ── */
:root {
  --ink:     #0f0f0f;
  --ink2:    #3a3a3a;
  --ink3:    #6b6b6b;
  --bg:      #f5f2ed;
  --bg2:     #eae6df;
  --bg3:     #ddd8cf;
  --accent:  #1a3a5c;
  --accent2: #2d6a4f;
  --warm:    #c45e1a;
  --card:    #ffffff;
  --border:  rgba(15,15,15,.12);
  --border2: rgba(15,15,15,.07);
  --radius:  14px;
  --rsm:     8px;
  --shadow:  0 2px 16px rgba(15,15,15,.08);
  --shadow-md: 0 8px 40px rgba(15,15,15,.12);
}

/* ── RESET ── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--ink); line-height: 1.65; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }

/* ── GRAIN OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .025;
  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)'/%3E%3C/svg%3E");
}

/* ══════════════════════════════════════════
   NAV
   ══════════════════════════════════════════ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(26,58,92,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 0 2rem;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.nav-logo {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: 14px;
  color: var(--bg);
  letter-spacing: .02em;
}
.nav-logo span { color: #5DCAA5; }

.nav-links { display: flex; gap: 4px; }
.nav-links a {
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  padding: 5px 10px;
  border-radius: 20px;
  transition: all .2s;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.act { background: rgba(255,255,255,0.12); color: var(--bg); }

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255,255,255,.1);
  border-radius: 8px;
  cursor: pointer;
  gap: 5px;
  flex-shrink: 0;
}
.nav-burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--bg);
  border-radius: 2px;
  transition: all .3s;
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-inst { font-size: 11px; color: rgba(255,255,255,0.5); letter-spacing: .04em; }

/* ── MOBILE MENU DRAWER ── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 56px; left: 0; right: 0;
  z-index: 99;
  background: rgba(26,58,92,0.98);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.1);
  padding: 1rem 1.5rem 1.5rem;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity .25s ease, transform .25s ease;
}
.mobile-menu.open { display: flex; opacity: 1; transform: translateY(0); }
.mobile-menu a {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.7);
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 10px;
  transition: all .2s;
  display: block;
}
.mobile-menu a:hover,
.mobile-menu a:active { background: rgba(255,255,255,.12); color: #fff; }
.mobile-menu-inst {
  font-size: 11px;
  color: rgba(255,255,255,.35);
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 12px 14px 0;
  margin-top: 4px;
  border-top: 1px solid rgba(255,255,255,.1);
}

/* ══════════════════════════════════════════
   HERO
   ══════════════════════════════════════════ */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 2rem 80px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
}
.hero-eyebrow::before { content: ''; display: block; width: 28px; height: 2px; background: var(--accent); }
.hero-eyebrow-pill {
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 3px 10px;
  border-radius: 20px;
}
.hero h1 {
  font-weight: 800;
  font-size: clamp(3rem,7vw,5.5rem);
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 900px;
}
.hero h1 em  { font-style: normal; color: var(--accent); }
.hero h1 .warm { color: var(--warm); }

.hero-sub {
  margin-top: 1.75rem;
  font-size: 1.05rem;
  color: var(--ink2);
  max-width: 520px;
  line-height: 1.75;
}
.hero-meta { margin-top: 2rem; display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.hm-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--ink3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  background: var(--card);
}
.hm-badge strong { color: var(--ink); font-weight: 600; }
.hero-ctas { margin-top: 3.5rem; display: flex; gap: 12px; flex-wrap: wrap; }

/* ══════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════ */
.btn-primary {
  font-size: 13px; font-weight: 600; padding: 12px 24px;
  background: var(--ink); color: var(--bg);
  border: none; border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .2s;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,58,92,.3); }

.btn-sec {
  font-size: 13px; font-weight: 500; padding: 12px 24px;
  background: transparent; color: var(--ink);
  border: 1.5px solid var(--border); border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .2s;
}
.btn-sec:hover { background: var(--bg2); }

.btn-accent {
  font-size: 13px; font-weight: 600; padding: 12px 24px;
  background: var(--accent); color: #fff;
  border: none; border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .2s;
}
.btn-accent:hover { background: #162e4a; transform: translateY(-2px); }

.btn-warm {
  font-size: 13px; font-weight: 600; padding: 12px 24px;
  background: var(--warm); color: #fff;
  border: none; border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .2s;
}
.btn-warm:hover { background: #a84e14; transform: translateY(-2px); }

/* ── Small button variants ── */
.btn-sm-accent {
  font-size: 12px; font-weight: 600; padding: 9px 18px;
  background: var(--accent); color: #fff;
  border: none; border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: all .2s;
}
.btn-sm-accent:hover { background: #162e4a; }

.btn-sm-green {
  font-size: 12px; font-weight: 600; padding: 9px 18px;
  background: var(--accent2); color: #fff;
  border: none; border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: all .2s;
}
.btn-sm-green:hover { background: #235a40; }

.btn-sm-out {
  font-size: 12px; font-weight: 500; padding: 9px 18px;
  background: transparent; color: var(--ink);
  border: 1.5px solid var(--border); border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: all .2s;
}
.btn-sm-out:hover { background: var(--bg2); }

/* ══════════════════════════════════════════
   LAYOUT UTILS
   ══════════════════════════════════════════ */
.divider { height: 1px; background: var(--border); max-width: 1200px; margin: 0 auto; }

section { padding: 80px 2rem; max-width: 1200px; margin: 0 auto; }

.sec-label {
  font-size: 11px; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: 8px;
}
.sec-label::before { content: ''; display: block; width: 16px; height: 2px; background: var(--accent); }

.sec-title { font-weight: 700; font-size: clamp(1.8rem,3.5vw,2.6rem); color: var(--ink); line-height: 1.15; margin-bottom: .75rem; letter-spacing: -.01em; }
.sec-desc  { font-size: 1rem; color: var(--ink2); max-width: 560px; line-height: 1.75; margin-bottom: 2.5rem; }

/* ══════════════════════════════════════════
   CONTEXT BAND
   ══════════════════════════════════════════ */
.context-band { background: var(--accent); color: #fff; padding: 64px 2rem; }
.context-band-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }

.cb-label { font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.5); margin-bottom: .75rem; }
.cb-title { font-weight: 800; font-size: clamp(1.8rem,3vw,2.8rem); line-height: 1.1; margin-bottom: 1.25rem; }
.cb-body  { font-size: .95rem; line-height: 1.8; color: rgba(255,255,255,.8); }
.cb-body p { margin-bottom: .75rem; }

.cb-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; margin-top: 2rem; }
.cb-stat  {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--rsm);
  padding: 1rem;
  text-align: center;
}
.cb-num  { font-weight: 800; font-size: 1.8rem; color: #fff; line-height: 1; }
.cb-desc { font-size: 11px; color: rgba(255,255,255,.6); margin-top: 4px; }

/* ── Fases flow ── */
.fases { display: flex; gap: 0; overflow-x: auto; padding: .5rem 0; }
.fase  { display: flex; flex-direction: column; align-items: center; gap: .4rem; min-width: 90px; position: relative; }
.fase::after { content: '→'; position: absolute; right: -12px; top: 22px; font-size: 14px; color: rgba(255,255,255,.4); }
.fase:last-child::after { display: none; }
.fase-n {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: .75rem; color: #fff; letter-spacing: .04em;
}
.fase-l { font-size: 10px; color: rgba(255,255,255,.6); text-align: center; line-height: 1.3; }

/* ══════════════════════════════════════════
   CASOS GRID
   ══════════════════════════════════════════ */
.casos-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.caso-card  {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s;
  box-shadow: var(--shadow);
}
.caso-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.cc-header         { padding: 2rem; display: flex; flex-direction: column; gap: 1rem; }
.cc-header.roberto { background: var(--accent); }
.cc-header.valeria { background: var(--accent2); }
.cc-num            { font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.6); }
.cc-avatar-row     { display: flex; align-items: center; gap: 1rem; }
.cc-avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; color: #fff; flex-shrink: 0;
}
.cc-name { font-weight: 700; font-size: 1.2rem; color: #fff; }
.cc-role { font-size: .8rem; color: rgba(255,255,255,.75); margin-top: 2px; }
.cc-tag  {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 500;
  padding: 4px 12px; border-radius: 20px;
  background: rgba(255,255,255,.2); color: #fff;
  align-self: flex-start;
}
.cc-body    { padding: 1.5rem 2rem; }
.cc-desc    { font-size: .9rem; color: var(--ink2); line-height: 1.7; margin-bottom: 1.25rem; }
.cc-datos   { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1.5rem; }
.cc-dato    { display: flex; gap: .75rem; align-items: flex-start; font-size: .83rem; }
.cc-dato-k  { min-width: 110px; color: var(--ink3); font-weight: 400; }
.cc-dato-v  { color: var(--ink); font-weight: 500; }
.cc-dato-v.warn { color: var(--warm); }
.cc-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ══════════════════════════════════════════
   MATERIALES
   ══════════════════════════════════════════ */
.materiales-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }
.mat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex; gap: 1rem; align-items: flex-start;
  transition: all .25s;
  box-shadow: var(--shadow);
}
.mat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.mat-icon {
  width: 44px; height: 44px;
  border-radius: var(--rsm);
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.mat-icon svg { width: 22px; height: 22px; fill: #fff; }
.mat-info { flex: 1; }
.mat-mod   { font-size: 10px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: .2rem; }
.mat-title { font-size: .9rem; font-weight: 700; color: var(--ink); margin-bottom: .3rem; line-height: 1.3; }
.mat-desc  { font-size: .8rem; color: var(--ink3); line-height: 1.5; margin-bottom: .75rem; }
.mat-link  { font-size: 11px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 4px; transition: gap .2s; }
.mat-link:hover { gap: 8px; }

/* ══════════════════════════════════════════
   METODOLOGÍA
   ══════════════════════════════════════════ */
.metod-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.25rem; margin-top: 2rem; }
.metod-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.metod-n     { font-weight: 800; font-size: 2.5rem; color: var(--bg3); line-height: 1; margin-bottom: .5rem; }
.metod-title { font-weight: 700; font-size: .95rem; color: var(--ink); margin-bottom: .5rem; }
.metod-desc  { font-size: .82rem; color: var(--ink3); line-height: 1.6; }

/* ══════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════ */
footer { background: var(--ink); color: var(--bg); padding: 3rem 2rem; margin-top: 4rem; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; }
.footer-brand     { font-weight: 800; font-size: 1.2rem; margin-bottom: .75rem; }
.footer-brand span { color: #5DCAA5; }
.footer-desc      { font-size: .82rem; opacity: .6; line-height: 1.6; }
.footer-col h4    { font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; opacity: .5; margin-bottom: .75rem; }
.footer-col a,
.footer-col p     { display: block; font-size: .82rem; opacity: .6; text-decoration: none; color: var(--bg); margin-bottom: .35rem; transition: opacity .2s; }
.footer-col a:hover { opacity: 1; }
.footer-bottom    { max-width: 1200px; margin: 2rem auto 0; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; align-items: center; font-size: .75rem; opacity: .4; flex-wrap: wrap; gap: .5rem; }

/* ── LinkedIn pill ── */
.linkedin-pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: .72rem; font-weight: 600;
  padding: 4px 10px; border-radius: 20px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--bg); text-decoration: none;
  opacity: 1; transition: background .2s;
}
.linkedin-pill:hover { background: rgba(255,255,255,.2); }

/* ══════════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════════ */
.fade-up { opacity: 0; transform: translateY(24px); animation: fadeUp .7s ease forwards; }
@keyframes fadeUp { to { opacity: 1; transform: none; } }
.d1 { animation-delay: .1s; }
.d2 { animation-delay: .2s; }
.d3 { animation-delay: .3s; }
.d4 { animation-delay: .45s; }
.d5 { animation-delay: .6s; }

/* ══════════════════════════════════════════
   RESPONSIVE — 900px
   ══════════════════════════════════════════ */
@media (max-width: 900px) {
  .context-band-inner  { grid-template-columns: 1fr; }
  .casos-grid          { grid-template-columns: 1fr; }
  .materiales-grid     { grid-template-columns: 1fr; }
  .metod-grid          { grid-template-columns: 1fr 1fr; }
  .footer-inner        { grid-template-columns: 1fr; gap: 2rem; }
  .nav-links           { display: none; }
  .nav-burger          { display: flex; }
  .nav-inst            { display: none; }
  .cb-stats            { grid-template-columns: 1fr 1fr 1fr; }
}

/* ══════════════════════════════════════════
   RESPONSIVE — 600px
   ══════════════════════════════════════════ */
@media (max-width: 600px) {
  /* Nav */
  nav { padding: 0 1rem; }

  /* Hero */
  .hero          { padding: 80px 1.25rem 48px; }
  .hero h1       { font-size: clamp(2.2rem,10vw,3rem); letter-spacing: -.025em; }
  .hero-eyebrow  { font-size: 10px; }
  .hero-sub      { font-size: .95rem; margin-top: 1.25rem; }
  .hero-meta     { gap: .75rem; margin-top: 1.5rem; }
  .hm-badge      { font-size: 11px; padding: 4px 10px; }
  .hero-ctas     { margin-top: 2.5rem; flex-direction: column; gap: 10px; }
  .hero-ctas .btn-primary,
  .hero-ctas .btn-sec { width: 100%; justify-content: center; padding: 14px 20px; font-size: 14px; }

  /* Sections */
  section    { padding: 56px 1.25rem; }
  .sec-title { font-size: clamp(1.5rem,6vw,2rem); }
  .sec-desc  { font-size: .93rem; }

  /* Context band */
  .context-band { padding: 48px 1.25rem; }
  .cb-title     { font-size: clamp(1.5rem,6vw,2rem); }
  .cb-stats     { grid-template-columns: 1fr 1fr; gap: .75rem; }
  .cb-num       { font-size: 1.5rem; }

  /* Fases */
  .fases  { gap: 0; padding: .25rem 0; }
  .fase   { min-width: 70px; }
  .fase-n { width: 36px; height: 36px; font-size: .65rem; }
  .fase-l { font-size: 9px; }

  /* Casos cards */
  .cc-body    { padding: 1.25rem 1.25rem; }
  .cc-header  { padding: 1.5rem 1.25rem; }
  .cc-datos   { gap: .5rem; }
  .cc-dato    { flex-direction: column; gap: .1rem; }
  .cc-dato-k  { min-width: unset; font-size: .78rem; }
  .cc-dato-v  { font-size: .85rem; }
  .cc-actions { flex-direction: column; gap: 8px; }
  .cc-actions a { text-align: center; justify-content: center; padding: 11px 16px; }

  /* Nota metodológica */
  .nota-met { flex-direction: column; gap: .75rem; }

  /* Materiales */
  .mat-card { flex-direction: column; gap: .75rem; }
  .mat-icon { width: 40px; height: 40px; }

  /* Metodología */
  .metod-grid { grid-template-columns: 1fr; gap: 1rem; }
  .metod-n    { font-size: 2rem; }

  /* Footer */
  footer          { padding: 2.5rem 1.25rem; margin-top: 2.5rem; }
  .footer-inner   { gap: 1.5rem; }
  .footer-bottom  { flex-direction: column; align-items: flex-start; gap: .5rem; }

  /* Buttons — touch targets */
  .btn-primary, .btn-sec, .btn-accent, .btn-warm { padding: 13px 22px; }
  .btn-sm-accent, .btn-sm-green, .btn-sm-out { padding: 11px 16px; font-size: 12px; }

  /* Divider */
  .divider { margin: 0 1.25rem; }
}