/* =========================================================================
   Ulises Rodriguez — Portfolio
   Design system: "Schematic" — graphite darks + signal red, PCB-trace motifs
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --bg:            #121316;
  --bg-alt:        #17191d;
  --surface:       #1d2024;
  --surface-hi:    #24272c;
  --border:        #2b2e34;
  --border-soft:   #23262b;
  --text:          #edeef0;
  --text-dim:      #a2a7af;
  --text-faint:    #6b7078;
  --red:           #c8393c;
  --red-bright:    #e14b4b;
  --red-dim:       #6e2224;
  --red-glow:      rgba(200,57,60,.35);
  --amber:         #d8933d;
  --amber-bright:  #f0ab54;
  --amber-glow:    rgba(216,147,61,.3);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --container: 1180px;
  --radius: 3px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html,body{ margin:0; padding:0; }

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* language toggling: default shown = es.
   Explicit per-tag display values are used instead of `inherit`, so that
   toggling never depends on (and breaks with) a parent's display context. */
[lang="en"]{ display:none; }

html[data-lang="en"] a[lang="en"]{ display:inline; }
html[data-lang="en"] button[lang="en"]{ display:inline-block; }
html[data-lang="en"] h1[lang="en"],
html[data-lang="en"] h2[lang="en"],
html[data-lang="en"] h3[lang="en"],
html[data-lang="en"] h4[lang="en"],
html[data-lang="en"] p[lang="en"]{ display:block; }
html[data-lang="en"] li[lang="en"]{ display:list-item; }
html[data-lang="en"] small[lang="en"],
html[data-lang="en"] span[lang="en"]{ display:inline; }

html[data-lang="en"] [lang="es"]{ display:none; }

a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
img{ max-width:100%; display:block; }
button{ font-family:inherit; cursor:pointer; }

::selection{ background:var(--red-dim); color:#fff; }

:focus-visible{
  outline:2px solid var(--red-bright);
  outline-offset:3px;
}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

/* ---------- typography helpers ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--red-bright);
  display:flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
}
.eyebrow::before{
  content:'';
  width:22px;
  height:1px;
  background:var(--red-bright);
  display:inline-block;
}
.eyebrow .sheet{
  color:var(--text-faint);
  font-weight:400;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  margin:0;
  color:var(--text);
  letter-spacing:-.01em;
}

.section-title{
  font-size:clamp(1.7rem,3vw,2.4rem);
  margin-bottom:10px;
}
.section-lede{
  color:var(--text-dim);
  max-width:640px;
  margin-bottom:48px;
  font-size:1rem;
}

.mono-tag{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.06em;
  color:var(--text-faint);
}

/* ---------- PCB trace divider (signature motif) ---------- */
.trace{
  position:relative;
  height:64px;
  width:100%;
  overflow:hidden;
}
.trace svg{ width:100%; height:100%; display:block; }
.trace path{
  fill:none;
  stroke:var(--border);
  stroke-width:1.5;
}
.trace circle{ fill:var(--red-dim); }

/* ---------- nav ---------- */
.nav{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:rgba(18,19,22,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border-soft);
}
.nav-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.nav-brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:1rem;
}
.nav-brand img{
  width:34px; height:34px;
  border-radius:6px;
  border:1px solid var(--border);
}
.nav-brand small{
  display:block;
  font-family:var(--font-mono);
  font-weight:400;
  font-size:.68rem;
  color:var(--text-faint);
  letter-spacing:.04em;
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-links a{
  font-size:.86rem;
  color:var(--text-dim);
  font-weight:500;
  position:relative;
  padding:6px 0;
  transition:color .2s;
}
.nav-links a:hover, .nav-links a.active{ color:var(--text); }
.nav-links a::after{
  content:'';
  position:absolute; left:0; bottom:0;
  width:0; height:1px;
  background:var(--red);
  transition:width .25s;
}
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }

.nav-actions{ display:flex; align-items:center; gap:14px; }

.lang-toggle{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.05em;
  background:transparent;
  border:1px solid var(--border);
  color:var(--text-dim);
  padding:7px 10px;
  border-radius:var(--radius);
  display:flex;
  gap:6px;
  transition:border-color .2s, color .2s;
}
.lang-toggle:hover{ border-color:var(--red); color:var(--text); }
.lang-toggle b{ color:var(--red-bright); font-weight:600; }
html[data-lang="en"] .lang-toggle .l-es{ color:var(--text-dim); font-weight:400; }
html[data-lang="en"] .lang-toggle .l-en{ color:var(--red-bright); font-weight:600; }
html[data-lang="es"] .lang-toggle .l-es{ color:var(--red-bright); font-weight:600; }
html[data-lang="es"] .lang-toggle .l-en{ color:var(--text-dim); font-weight:400; }

.btn{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.03em;
  padding:11px 20px;
  border-radius:var(--radius);
  border:1px solid var(--border);
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:all .2s;
  background:transparent;
  color:var(--text);
}
.btn:hover{ border-color:var(--text-dim); }
.btn-primary{
  background:var(--red);
  border-color:var(--red);
  color:#fff;
}
.btn-primary:hover{
  background:var(--red-bright);
  border-color:var(--red-bright);
  box-shadow:0 0 0 4px var(--red-glow);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  padding:6px;
}
.nav-toggle span{
  width:22px; height:2px; background:var(--text);
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:168px 0 100px;
  border-bottom:1px solid var(--border-soft);
  overflow:hidden;
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size:42px 42px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 20%, black, transparent);
  opacity:.5;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.3fr .7fr;
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:clamp(2.4rem,5vw,3.6rem);
  line-height:1.08;
  margin-bottom:20px;
}
.hero h1 .accent{ color:var(--red); }
.hero-role{
  font-family:var(--font-mono);
  color:var(--text-dim);
  font-size:1.05rem;
  margin-bottom:22px;
  min-height:1.6em;
}
.hero-role .cursor{ color:var(--red-bright); }
.hero-desc{
  color:var(--text-dim);
  max-width:520px;
  margin-bottom:34px;
  font-size:1.02rem;
}
.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:38px; }
.hero-meta{
  display:flex;
  gap:26px;
  flex-wrap:wrap;
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--text-faint);
}
.hero-meta a{ color:var(--text-dim); transition:color .2s; position:relative; }
.hero-meta a:hover{ color:var(--red-bright); }
.hero-meta span{ display:flex; align-items:center; gap:7px; }
.dot-live{
  width:7px; height:7px; border-radius:50%;
  background:var(--red-bright);
  box-shadow:0 0 0 3px var(--red-glow);
  display:inline-block;
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{ opacity:1; }
  50%{ opacity:.4; }
}

/* the "chip" avatar with scope trace */
.hero-visual{ position:relative; z-index:2; }
.chip-flip{ perspective:1200px; }
.chip-flip-inner{
  position:relative;
  width:100%;
  aspect-ratio:1/1;
  transform-style:preserve-3d;
  animation:chipflip 10s infinite;
}
.chip-face{
  position:absolute; inset:0;
  backface-visibility:hidden;
  border:1px solid var(--border);
  background:var(--surface);
  border-radius:10px;
  padding:26px;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.chip-face-front img{
  width:100%;
  border-radius:6px;
  filter:saturate(1.05);
}
.chip-face-back{
  transform:rotateY(180deg);
  flex-direction:column;
  gap:12px;
  color:var(--text-faint);
}
.chip-face-back svg{ width:40px; height:40px; opacity:.55; }
.chip-face-back span{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.04em;
  text-align:center;
}
.chip-face-back.has-photo{ padding:0; }
.chip-face-back.has-photo img{
  width:100%; height:100%;
  object-fit:cover;
  border-radius:10px;
}
@keyframes chipflip{
  0%, 42%   { transform:rotateY(0deg); }
  50%, 92%  { transform:rotateY(180deg); }
  100%      { transform:rotateY(360deg); }
}

/* ambient hero particles */
.hero-particles{ position:absolute; inset:0; z-index:1; pointer-events:none; overflow:hidden; }
.hero-particles span{
  position:absolute;
  width:5px; height:5px;
  border-radius:50%;
  background:var(--red);
  opacity:.45;
  animation:drift 7s ease-in-out infinite;
}
.hero-particles span:nth-child(1){ top:18%; left:8%;  animation-delay:0s; }
.hero-particles span:nth-child(2){ top:64%; left:14%; background:var(--amber); width:4px; height:4px; animation-delay:-1.5s; }
.hero-particles span:nth-child(3){ top:32%; left:46%; width:3px; height:3px; animation-delay:-3s; }
.hero-particles span:nth-child(4){ top:78%; left:52%; background:var(--amber); animation-delay:-4.5s; }
.hero-particles span:nth-child(5){ top:12%; left:78%; width:4px; height:4px; animation-delay:-2.2s; }
.hero-particles span:nth-child(6){ top:58%; left:88%; background:var(--amber); width:3px; height:3px; animation-delay:-5.5s; }
@keyframes drift{
  0%,100%{ transform:translateY(0) scale(1); opacity:.45; }
  50%{ transform:translateY(-16px) scale(1.3); opacity:.8; }
}

/* scroll cue */
.scroll-cue{
  position:absolute;
  bottom:20px; left:50%;
  transform:translateX(-50%);
  z-index:2;
  color:var(--text-faint);
  animation:bob 2.2s infinite;
  display:flex; flex-direction:column; align-items:center; gap:4px;
}
.scroll-cue span{
  font-family:var(--font-mono); font-size:.62rem; letter-spacing:.08em;
}
.scroll-cue svg{ width:16px; height:16px; }
@keyframes bob{
  0%,100%{ transform:translate(-50%,0); }
  50%{ transform:translate(-50%,7px); }
}

/* copy-to-clipboard feedback */
.copy-feedback{
  position:absolute; top:-34px; left:50%;
  transform:translateX(-50%) translateY(4px);
  background:var(--red);
  color:#fff;
  font-family:var(--font-mono);
  font-size:.66rem;
  padding:5px 10px;
  border-radius:5px;
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s, transform .2s;
}
.copy-feedback.show{ opacity:1; transform:translateX(-50%) translateY(0); }
.chip-scope{
  margin-top:16px;
  border:1px solid var(--border);
  background:var(--bg-alt);
  border-radius:6px;
  padding:10px 12px 4px;
}
.chip-scope svg{ width:100%; height:46px; display:block; }
.chip-scope-label{
  font-family:var(--font-mono);
  font-size:.62rem;
  color:var(--text-faint);
  letter-spacing:.06em;
  display:flex;
  justify-content:space-between;
  padding-bottom:6px;
}

/* ---------- sections shared ---------- */
section{ padding:96px 0; position:relative; }
.section-alt{ background:var(--bg-alt); }

/* ---------- perfil ---------- */
.perfil-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:start;
}
.perfil-text p{ color:var(--text-dim); margin-bottom:18px; }
.perfil-text strong{ color:var(--text); font-weight:600; }
.perfil-facts{ border:1px solid var(--border); border-radius:8px; overflow:hidden; }
.perfil-fact{
  display:flex; justify-content:space-between; gap:16px;
  padding:16px 20px;
  border-bottom:1px solid var(--border-soft);
  font-size:.9rem;
}
.perfil-fact:last-child{ border-bottom:none; }
.perfil-fact .k{ font-family:var(--font-mono); color:var(--text-faint); font-size:.76rem; letter-spacing:.03em; }
.perfil-fact .v{ color:var(--text); text-align:right; }

/* ---------- skills ---------- */
.skills-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--border);
  border:1px solid var(--border);
  border-radius:8px;
  overflow:hidden;
}
.skill-block{ background:var(--surface); padding:26px 28px; }
.skill-block h3{
  font-size:.95rem;
  margin-bottom:16px;
  display:flex; align-items:center; gap:10px;
}
.skill-icon{
  width:30px; height:30px;
  border-radius:7px;
  border:1px solid var(--border);
  background:var(--bg-alt);
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
  color:var(--red-bright);
  transition:transform .25s, border-color .25s;
}
.skill-icon svg{ width:16px; height:16px; }
.skill-block:nth-child(even) .skill-icon{ color:var(--amber-bright); }
.skill-block:hover .skill-icon{ transform:rotate(-8deg) scale(1.08); border-color:var(--red); }
.tags{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  font-family:var(--font-mono);
  font-size:.74rem;
  color:var(--text-dim);
  border:1px solid var(--border);
  padding:6px 11px;
  border-radius:20px;
  transition:border-color .2s, color .2s;
}
.tag:hover{ border-color:var(--red); color:var(--text); }

/* ---------- timeline (experience + leadership) ---------- */
.timeline{ position:relative; padding-left:108px; }
.timeline::before{
  content:'';
  position:absolute; left:57px; top:6px; bottom:6px;
  width:1px;
  background:var(--border);
}
@media (max-width:640px){
  .timeline{ padding-left:26px; }
  .timeline::before{ left:5px; }
}
.tl-item{ position:relative; padding-bottom:40px; padding-left:6px; }
.tl-item:last-child{ padding-bottom:0; }
.tl-item::before{
  content:'';
  position:absolute; left:-56px; top:5px;
  width:11px; height:11px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--red);
}
.tl-item.upcoming::before{
  border-color:var(--amber);
  border-style:dashed;
  background:var(--bg);
}
.tl-icon{
  position:absolute; left:-68px; top:-6px;
  width:34px; height:34px;
  border-radius:8px;
  border:1px solid var(--border);
  background:var(--surface);
  display:flex; align-items:center; justify-content:center;
  color:var(--red-bright);
}
.tl-item.upcoming .tl-icon{ color:var(--amber-bright); border-color:var(--amber); border-style:dashed; }
.tl-icon svg{ width:17px; height:17px; }
.tl-item .mono-tag{ margin-bottom:6px; display:flex; align-items:center; gap:10px; }
.pill-upcoming{
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.05em;
  color:var(--amber-bright);
  border:1px dashed var(--amber);
  padding:2px 8px;
  border-radius:20px;
}
.tl-item h3{ font-size:1.08rem; margin-bottom:4px; }
.tl-item .org{ color:var(--red-bright); font-size:.86rem; font-weight:500; margin-bottom:10px; display:block; }
.tl-item p, .tl-item li{ color:var(--text-dim); font-size:.92rem; }
.tl-item ul{ margin-top:8px; }
.tl-item li{ position:relative; padding-left:16px; margin-bottom:6px; }
.tl-item li::before{ content:'—'; position:absolute; left:0; color:var(--text-faint); }
@media (max-width:640px){
  .tl-icon{ display:none; }
  .tl-item::before{ left:-26px; }
}

/* ---------- projects ---------- */
.proj-filters{
  display:flex; gap:10px; flex-wrap:wrap; margin-bottom:36px;
}
.proj-filter{
  font-family:var(--font-mono);
  font-size:.74rem;
  padding:8px 14px;
  border:1px solid var(--border);
  border-radius:20px;
  color:var(--text-dim);
  background:transparent;
  transition:all .2s;
}
.proj-filter.active, .proj-filter:hover{ border-color:var(--red); color:var(--text); }

.proj-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.proj-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:8px;
  padding:26px;
  display:flex;
  flex-direction:column;
  min-height:230px;
  transition:transform .25s, border-color .25s, box-shadow .25s;
  position:relative;
  overflow:hidden;
}
.proj-card:hover{
  transform:translateY(-4px);
  border-color:var(--red-dim);
  box-shadow:0 14px 30px -14px rgba(0,0,0,.6);
}
.proj-card::after{
  content:'';
  position:absolute; top:0; right:0;
  width:60px; height:60px;
  background:linear-gradient(135deg, transparent 50%, var(--red-dim) 50%);
  opacity:0; transition:opacity .25s;
}
.proj-card:hover::after{ opacity:.5; }
.proj-card-top{
  display:flex;
  align-items:flex-start;
  justify-content:flex-end;
  margin-bottom:6px;
}
.proj-title-row{
  display:flex;
  align-items:center;
  gap:11px;
  margin-bottom:10px;
}
.proj-logo{
  width:72px; height:72px;
  border-radius:7px;
  border:1.5px dashed var(--border);
  background:var(--bg-alt);
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
  color:var(--text-faint);
  transition:border-color .25s, color .25s;
}
.proj-logo img{ width:100%; height:100%; object-fit:cover; border-radius:6px; }
.proj-logo svg{ width:14px; height:14px; }
.proj-card:hover .proj-logo{ border-color:var(--red-dim); color:var(--text-dim); }
.proj-logo.has-logo{ border-style:solid; border-color:var(--border); }
.proj-title-row h3{ margin-bottom:0; }
.proj-badge{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  padding:4px 10px;
  border-radius:20px;
  white-space:nowrap;
  height:fit-content;
}
.proj-badge.personal{
  background:var(--amber);
  color:#1a1408;
  font-weight:600;
}
.proj-badge.academic{
  border:1px solid var(--border);
  color:var(--text-faint);
}
.proj-cat{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.05em;
  color:var(--red-bright);
  text-transform:uppercase;
  margin-bottom:14px;
  display:block;
}
.proj-card h3{ font-size:1.15rem; margin-bottom:10px; line-height:1.3; }
.proj-card p{ color:var(--text-dim); font-size:.87rem; flex-grow:1; }
.proj-tags{ display:flex; flex-wrap:wrap; gap:6px; margin:16px 0 18px; }
.proj-tags span{
  font-family:var(--font-mono);
  font-size:.66rem;
  color:var(--text-faint);
  border:1px solid var(--border-soft);
  padding:3px 8px;
  border-radius:3px;
}
.proj-link{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--text);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.proj-link svg{ width:13px; height:13px; transition:transform .2s; }
.proj-card:hover .proj-link svg{ transform:translateX(3px); }

/* ---------- education / languages ---------- */
.edu-lang-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:22px;
}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:8px;
  padding:28px;
}
.edu-item{ margin-bottom:22px; }
.edu-item:last-child{ margin-bottom:0; }
.edu-item h3{ font-size:1rem; margin-bottom:4px; }
.edu-item .org{ color:var(--text-dim); font-size:.88rem; }
.edu-item .mono-tag{ margin-top:4px; display:block; }
.lang-row{
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 0; border-bottom:1px solid var(--border-soft);
}
.lang-row:last-child{ border-bottom:none; }
.lang-bar{
  width:110px; height:5px; background:var(--border); border-radius:3px; overflow:hidden;
}
.lang-bar i{ display:block; height:100%; background:var(--red); }

/* ---------- contact ---------- */
.contact-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.contact-list{ margin-top:28px; display:flex; flex-direction:column; gap:16px; }
.contact-list a{
  position:relative;
  display:flex; align-items:center; gap:14px;
  padding:16px 18px;
  border:1px solid var(--border);
  border-radius:8px;
  font-size:.92rem;
  transition:border-color .2s, transform .2s;
}
.contact-list a:hover{ border-color:var(--red); transform:translateX(4px); }
.contact-list .ico{
  width:34px; height:34px;
  border-radius:6px;
  background:var(--bg-alt);
  display:flex; align-items:center; justify-content:center;
  color:var(--red-bright);
  flex-shrink:0;
}
.contact-list .ico svg{ width:16px; height:16px; }
.contact-list a:nth-child(even) .ico{ color:var(--amber-bright); }
.contact-list small{ display:block; color:var(--text-faint); font-family:var(--font-mono); font-size:.68rem; margin-bottom:2px; }

/* ---------- footer ---------- */
footer{
  border-top:1px solid var(--border-soft);
  padding:34px 0;
}
.footer-inner{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--text-faint);
}

/* ---------- reveal on scroll ---------- */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }

/* ---------- project detail page ---------- */
.proj-hero{
  padding:150px 0 60px;
  border-bottom:1px solid var(--border-soft);
}
.proj-hero .back-link{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--text-dim);
  display:inline-flex; align-items:center; gap:8px;
  margin-bottom:28px;
}
.proj-hero .back-link:hover{ color:var(--red-bright); }
.proj-hero h1{ font-size:clamp(1.9rem,4vw,2.8rem); margin-bottom:16px; max-width:780px; }
.proj-hero-meta{ display:flex; gap:26px; flex-wrap:wrap; margin-top:22px; }
.proj-hero-meta .item small{ display:block; font-family:var(--font-mono); font-size:.68rem; color:var(--text-faint); margin-bottom:4px; }
.proj-hero-meta .item span{ font-size:.92rem; }

.media-placeholder{
  border:1.5px dashed var(--border);
  border-radius:10px;
  aspect-ratio:16/9;
  display:flex; align-items:center; justify-content:center;
  flex-direction:column;
  gap:10px;
  color:var(--text-faint);
  font-family:var(--font-mono);
  font-size:.8rem;
  text-align:center;
  padding:20px;
}
.media-placeholder svg{ width:30px; height:30px; opacity:.5; }

.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.gallery-grid .media-placeholder{ aspect-ratio:4/3; }

.proj-body{
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:56px;
  align-items:start;
}
.proj-body h2{ font-size:1.3rem; margin-bottom:14px; }
.proj-body .placeholder-text{
  color:var(--text-faint);
  font-family:var(--font-mono);
  font-size:.84rem;
  border-left:2px solid var(--border);
  padding-left:16px;
}
.proj-side .card{ margin-bottom:20px; }
.proj-side h4{ font-size:.82rem; text-transform:uppercase; letter-spacing:.05em; color:var(--text-faint); margin-bottom:14px; font-family:var(--font-mono); }
.report-btn{
  width:100%; justify-content:center;
  margin-bottom:12px;
}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-visual{ max-width:320px; }
  .perfil-grid, .contact-wrap, .proj-body{ grid-template-columns:1fr; }
  .skills-grid{ grid-template-columns:1fr; }
  .proj-grid{ grid-template-columns:repeat(2,1fr); }
  .edu-lang-grid{ grid-template-columns:1fr; }
}
@media (max-width:720px){
  .nav-links{
    position:fixed; top:68px; left:0; right:0;
    background:var(--bg);
    border-bottom:1px solid var(--border);
    flex-direction:column;
    padding:20px 28px 26px;
    gap:18px;
    transform:translateY(-130%);
    transition:transform .3s;
  }
  .nav-links.open{ transform:translateY(0); }
  .nav-toggle{ display:flex; }
  .proj-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:1fr 1fr; }
  .hero{ padding:140px 0 70px; }
}
@media (max-width:480px){
  .gallery-grid{ grid-template-columns:1fr; }
  .hero-cta{ flex-direction:column; align-items:stretch; }
  .hero-meta{ gap:14px; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  html{ scroll-behavior:auto; }
}