/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* SEO: H1 semántico oculto visualmente pero indexable por Google y accesible */
.seo-h1 {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
/* address en sección contacto: reset de estilo itálico por defecto */
address { font-style: normal; }

/* ===== DARK THEME (default) ===== */
:root,
[data-theme="dark"] {
  --bg:          #141414;
  --bg-2:        #1c1c1c;
  --bg-card:     #1f1f1f;
  --bg-card-h:   #262626;
  --text:        #f0ece6;
  --text-muted:  #888;
  --text-dim:    #444;
  --accent:      #4d9fff;
  --accent-glow: rgba(77,159,255,.12);
  --accent-d:    #2f7fe0;
  --green:       #6fcf97;
  --border:      rgba(255,255,255,.07);
  --border-h:    rgba(77,159,255,.35);
  --shadow:      0 4px 24px rgba(0,0,0,.45);
  --shadow-h:    0 12px 48px rgba(0,0,0,.65);
  --grain-op:    .045;
  --nav-bg:      rgba(20,20,20,.88);
  --toggle-bg:   #2a2a2a;
  --badge-bg:    rgba(20,20,20,.92);
}

/* ===== LIGHT THEME ===== */
[data-theme="light"] {
  --bg:          #f0ede8;
  --bg-2:        #e6e2dd;
  --bg-card:     #e2ddd8;
  --bg-card-h:   #d8d4cf;
  --text:        #0d0d0d;
  --text-muted:  #555;
  --text-dim:    #aaa;
  --accent:      #1a6fd8;
  --accent-glow: rgba(26,111,216,.1);
  --accent-d:    #1459b0;
  --green:       #27ae60;
  --border:      rgba(0,0,0,.09);
  --border-h:    rgba(26,111,216,.35);
  --shadow:      0 4px 24px rgba(0,0,0,.1);
  --shadow-h:    0 12px 48px rgba(0,0,0,.18);
  --grain-op:    .02;
  --nav-bg:      rgba(240,237,232,.88);
  --toggle-bg:   #d8d4cf;
  --badge-bg:    rgba(240,237,232,.92);
}

/* ===== THEME TRANSITION ===== */
.theme-transitioning,
.theme-transitioning *,
.theme-transitioning *::before,
.theme-transitioning *::after {
  transition:
    background-color .35s ease,
    color .35s ease,
    border-color .35s ease,
    box-shadow .35s ease !important;
}

/* ===== BASE ===== */
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

strong { color: var(--accent); font-weight: 600; }
::selection { background: var(--accent); color: #fff; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section    { padding: 8rem 0; }
.section-alt { background: var(--bg-2); }

/* ===== GRAIN ===== */
.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: var(--grain-op);
  mix-blend-mode: overlay;
  /* Capa GPU propia para no arrastrar repintado del navbar y otros fixed */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}
.grain-overlay svg { width: 100%; height: 100%; }

/* ===== FLOATING BADGE ===== */
.floating-badge {
  position: fixed;
  top: 5rem;
  left: 50%;
  transform: translateX(-50%) translateY(-12px);
  display: flex;
  align-items: center;
  gap: .6rem;
  background: var(--badge-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .4rem 1.1rem .4rem .5rem;
  font-size: .78rem;
  color: var(--text-muted);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  pointer-events: none;
  z-index: 88;
  transition: opacity .4s ease, transform .4s ease;
  white-space: nowrap;
}
.floating-badge.visible { opacity: 1; transform: translateX(-50%) translateY(0); }
.floating-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
}

/* ===== NAV ===== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s ease, box-shadow .3s ease;
  /* GPU compositing: evita saltos durante la animación
     de la barra del navegador en móviles (iOS/Android) */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  will-change: transform;
}
#navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: 'Antonio', sans-serif;
  font-size: 1.5rem; font-weight: 700; color: var(--text);
  letter-spacing: -.02em;
}
.dot { color: var(--accent); }
.nav-links {
  display: flex; gap: 2.5rem; align-items: center;
}
.nav-links a {
  font-size: .875rem; font-weight: 500;
  color: var(--text-muted);
  transition: color .25s;
  letter-spacing: .02em;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent) !important; color: #fff !important;
  padding: .5rem 1.25rem !important; border-radius: 6px;
  font-weight: 600 !important;
  transition: opacity .25s, transform .25s !important;
}
.nav-cta:hover { opacity: .85; transform: translateY(-1px); }
.nav-right { display: flex; align-items: center; gap: .75rem; }

/* Theme button */
.theme-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--toggle-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-muted);
  transition: background .25s, border-color .25s, color .25s, transform .2s;
  flex-shrink: 0;
}
.theme-btn:hover { border-color: var(--accent); color: var(--accent); transform: scale(1.08); }
.theme-btn svg { width: 18px; height: 18px; }
/* show sun in dark, moon in light */
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: .3s ease;
}
.nav-mobile {
  display: none;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
}
.nav-mobile ul { display: flex; flex-direction: column; gap: 1.25rem; }
.nav-mobile a { font-size: 1.1rem; color: var(--text-muted); font-weight: 500; }
.nav-mobile a:hover { color: var(--accent); }
#navbar.menu-open .nav-mobile { display: block; }
#navbar.menu-open .hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#navbar.menu-open .hamburger span:nth-child(2) { opacity: 0; }
#navbar.menu-open .hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--accent); color: #fff;
  font-weight: 600; font-size: .9rem;
  padding: .75rem 1.75rem; border-radius: 8px;
  border: none; cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: opacity .25s, transform .25s, box-shadow .25s;
}
.btn-primary:hover {
  opacity: .85; transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}
.btn-outline {
  display: inline-flex; align-items: center; gap: .5rem;
  background: transparent; color: var(--text);
  font-weight: 600; font-size: .9rem;
  padding: .75rem 1.75rem; border-radius: 8px;
  border: 1px solid var(--border); cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: border-color .25s, color .25s, transform .25s;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: .4rem;
  background: transparent; color: var(--text-muted);
  font-size: .9rem; font-weight: 500; cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: color .25s;
}
.btn-ghost:hover { color: var(--accent); }
.btn-full { width: 100%; justify-content: center; }
.btn-arrow { transition: transform .25s; display: inline-block; }
.btn-primary:hover .btn-arrow,
.btn-outline:hover .btn-arrow { transform: translateX(4px); }

/* ===== HERO ===== */
#hero {
  min-height: 100vh;   /* fallback navegadores antiguos */
  min-height: 100svh;  /* svh = "small viewport height": estable incluso cuando
                          la barra del browser aparece/desaparece en móviles */
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 7rem 2rem 4rem;
  position: relative; overflow: hidden;
  gap: 0;
}

/* subtle radial glow behind */
#hero::before {
  content: '';
  position: absolute;
  top: -20%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

/* Name row */
.hero-name-row {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1.5rem;
  position: relative; z-index: 1;
}
.hero-name-text {
  font-family: 'Antonio', sans-serif;
  font-size: clamp(.85rem, 1.5vw, 1.05rem);
  font-weight: 400; letter-spacing: .15em;
  color: var(--text-muted); text-transform: uppercase;
}
.hero-name-tag {
  font-size: .8rem; color: var(--text-dim);
  letter-spacing: .08em;
}

/* MAIN ROW: FULL [card] STACK */
.hero-main-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 2vw, 2.5rem);
  width: 100%;
  position: relative; z-index: 1;
}

.hero-word {
  font-family: 'Antonio', sans-serif;
  font-size: clamp(4.5rem, 13vw, 16rem);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.03em;
  color: var(--text);
  flex: 1;
  user-select: none;
}
.hero-word-left  { text-align: right; }
.hero-word-right {
  text-align: left;
  display: flex; flex-direction: column;
  justify-content: flex-end; gap: 1.5rem;
}
.hero-side-desc {
  font-size: clamp(.78rem, 1.2vw, .95rem);
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 260px;
  font-weight: 400;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0;
}

/* Image card */
.hero-card-wrap {
  flex-shrink: 0;
  width: clamp(180px, 22vw, 340px);
  position: relative;
  z-index: 2;
  will-change: transform;
}

.hero-card {
  position: relative;
  border-radius: clamp(14px, 2vw, 22px);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: rotate(-2.5deg);
  transition: transform .5s cubic-bezier(.23,1,.32,1), box-shadow .5s ease;
}
.hero-card:hover {
  transform: rotate(0deg) scale(1.02);
  box-shadow: var(--shadow-h);
}
.hero-img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top center;
  display: block;
}
.hero-img-fallback {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Antonio', sans-serif;
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700; color: var(--text-dim);
  background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-2) 100%);
}
/* hide fallback by default; JS removes broken img → fallback becomes first child → shows */
.hero-card:has(.hero-img) .hero-img-fallback { display: none; }
.hero-card-badge {
  position: absolute; bottom: 1rem; left: 50%;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: .45rem;
  background: var(--badge-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .3rem .9rem;
  font-size: .72rem; font-weight: 600;
  color: var(--text-muted);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  white-space: nowrap;
}

/* DEVELOPER row */
.hero-dev-row {
  font-family: 'Antonio', sans-serif;
  font-size: clamp(2rem, 7vw, 9rem);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.03em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--border-h);
  margin-top: clamp(.5rem, 1.5vw, 1.5rem);
  position: relative; z-index: 1;
  user-select: none;
}
[data-theme="light"] .hero-dev-row {
  -webkit-text-stroke: 1.5px rgba(26,111,216,.25);
}

/* Actions row */
.hero-actions-row {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
  position: relative; z-index: 1;
}
.hero-stats-inline {
  display: flex; align-items: center; gap: .6rem;
  font-size: .82rem; color: var(--text-dim);
  margin-left: .5rem;
}
.hero-stats-inline strong {
  color: var(--text); font-size: 1.05rem;
  font-family: 'Antonio', sans-serif;
}
.stat-sep { color: var(--text-dim); }

/* Scroll hint */
.hero-scroll {
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  color: var(--text-dim);
  font-size: .68rem; letter-spacing: .15em; text-transform: uppercase;
  margin-top: 3rem;
  position: relative; z-index: 1;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  animation: scrollAnim 2.2s ease infinite;
}
@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: .4; }
}

/* Dot badge */
.badge-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2s ease infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--green); }
  50%       { opacity: .7; box-shadow: 0 0 14px var(--green); }
}

/* ===== SECTION HEADER ===== */
.section-header { margin-bottom: 4rem; }
.section-tag {
  display: inline-block;
  font-size: .72rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1rem;
}
.section-title {
  font-family: 'Antonio', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700; line-height: 1.05;
  letter-spacing: -.02em; color: var(--text);
}
.section-subtitle {
  margin-top: 1rem; color: var(--text-muted);
  font-size: 1.05rem; max-width: 500px;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: auto auto;
  gap: 3rem 4rem;
}
.about-photo-col { grid-row: 1 / 3; }
.about-content   { grid-column: 2; }
.about-skills    { grid-column: 2; }

.about-photo-card {
  position: relative;
  border-radius: 18px; overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
  transition: transform .5s ease;
}
.about-photo-card:hover { transform: rotate(0deg) scale(1.02); }
.about-photo-card img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.about-photo-fallback {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Antonio', sans-serif; font-size: 5rem; font-weight: 700;
  color: var(--text-dim);
  background: linear-gradient(160deg, var(--bg-card), var(--bg-2));
}
.about-photo-card:has(img) .about-photo-fallback { display: none; }

.about-content p {
  color: var(--text-muted); line-height: 1.8; margin-bottom: 1.25rem; font-size: 1.05rem;
}
.about-actions {
  display: flex; gap: 1rem; align-items: center; margin-top: 2rem; flex-wrap: wrap;
}
.about-stats {
  display: flex; gap: 2.5rem; margin-top: 2.5rem;
  padding-top: 2rem; border-top: 1px solid var(--border);
}
.about-stat { display: flex; flex-direction: column; gap: .15rem; }
.about-stat .stat-num {
  font-family: 'Antonio', sans-serif; font-size: 2.5rem;
  font-weight: 700; color: var(--text); line-height: 1;
}
.about-stat .stat-suf { font-family: 'Antonio', sans-serif; font-size: 1.5rem; color: var(--accent); font-weight: 700; }
.about-stat span:last-child { font-size: .75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em; }

.skills-title {
  font-size: .75rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 1rem;
}
.skills-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: .75rem;
}
.skill-item {
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  padding: 1rem .5rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color .25s, transform .25s, background .25s;
  cursor: default;
}
.skill-item:hover { border-color: var(--border-h); background: var(--bg-card-h); transform: translateY(-3px); }
.skill-item img { width: 28px; height: 28px; object-fit: contain; }
.skill-item span { font-size: .65rem; font-weight: 500; color: var(--text-muted); text-align: center; }

/* ===== SERVICES ACCORDION ===== */
.services-accordion {
  border-top: 1px solid var(--border);
  margin-bottom: 4rem;
}
.svc-item { border-bottom: 1px solid var(--border); }
.svc-header {
  display: flex; align-items: center; gap: 1.5rem;
  padding: 1.6rem 0; cursor: pointer;
  transition: color .25s;
}
.svc-header:hover h3 { color: var(--accent); }
.svc-num {
  font-family: 'Antonio', sans-serif; font-size: 1rem;
  font-weight: 700; color: var(--text-dim);
  min-width: 2rem; letter-spacing: .05em;
}
.svc-header h3 {
  flex: 1; font-family: 'Antonio', sans-serif;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 700; letter-spacing: -.01em;
  color: var(--text); transition: color .25s;
}
.svc-arrow {
  width: 20px; height: 20px; color: var(--text-dim);
  transition: transform .35s ease, color .25s;
  flex-shrink: 0;
}
.svc-item.open .svc-arrow { transform: rotate(180deg); color: var(--accent); }
.svc-item.open .svc-header h3 { color: var(--accent); }
.svc-body {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows .35s ease;
}
.svc-item.open .svc-body { grid-template-rows: 1fr; }
.svc-body-inner { overflow: hidden; }
.svc-body-inner p {
  padding: 0 0 1.5rem 3.5rem;
  color: var(--text-muted); font-size: .95rem; line-height: 1.75; max-width: 640px;
}
.svc-tags {
  display: flex; flex-wrap: wrap; gap: .4rem;
  padding: 0 0 1.75rem 3.5rem;
}
.svc-tags span {
  font-size: .68rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(77,159,255,.15);
  padding: .2rem .65rem; border-radius: 4px;
}
[data-theme="light"] .svc-tags span { border-color: rgba(26,111,216,.15); }

.services-cta {
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 1.25rem;
}
.services-cta p { color: var(--text-muted); font-size: 1.05rem; }

/* ===== TIMELINE ===== */
.timeline { max-width: 800px; }
.timeline-item { display: flex; gap: 2rem; margin-bottom: 3.5rem; }
.timeline-marker { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; }
.marker-dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--bg);
  box-shadow: 0 0 10px var(--accent-glow); flex-shrink: 0; margin-top: 4px;
}
.marker-line { width: 2px; flex: 1; background: var(--border); margin-top: 8px; min-height: 40px; }
.timeline-content { flex: 1; padding-bottom: 1rem; }
.timeline-meta { display: flex; align-items: center; gap: .75rem; margin-bottom: .4rem; flex-wrap: wrap; }
.timeline-date { font-size: .78rem; color: var(--text-dim); letter-spacing: .03em; font-weight: 500; }
.timeline-badge {
  font-size: .62rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--green);
  background: rgba(111,207,151,.08); border: 1px solid rgba(111,207,151,.25);
  padding: .18rem .55rem; border-radius: 999px;
}
.timeline-role { font-size: 1.2rem; font-weight: 700; color: var(--text); margin-bottom: .25rem; line-height: 1.3; }
.timeline-company { font-size: .875rem; color: var(--accent); font-weight: 500; display: block; margin-bottom: 1rem; }
.timeline-list { display: flex; flex-direction: column; gap: .5rem; }
.timeline-list li {
  font-size: .9rem; color: var(--text-muted); padding-left: 1.2rem;
  position: relative; line-height: 1.6;
}
.timeline-list li::before { content: '–'; position: absolute; left: 0; color: var(--text-dim); }

/* ===== PROJECTS ===== */
.projects-filter { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 3rem; }
.filter-btn {
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-muted); font-size: .75rem; font-weight: 600;
  letter-spacing: .06em; padding: .45rem 1.2rem; border-radius: 999px;
  cursor: pointer; transition: all .25s; font-family: 'Inter', sans-serif;
  text-transform: uppercase;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.project-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 18px; overflow: hidden;
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.project-card:hover { border-color: var(--border-h); transform: translateY(-4px); box-shadow: var(--shadow-h); }
.project-card.hidden      { display: none; }
.project-card.proj-hidden { display: none; }
.timeline-item.exp-hidden { display: none; }

/* Animación de revelado (proyectos + experiencia) */
@keyframes cardIn {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0);    }
}
.card-in {
  animation: cardIn 0.42s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* Botones Ver más — proyectos y experiencia */
.projects-more,
.exp-more {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}
.project-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.project-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Antonio', sans-serif; font-size: 1.3rem;
  font-weight: 700; letter-spacing: .1em;
  color: rgba(255,255,255,.12);
}
.project-img-overlay {
  position: absolute; inset: 0;
  background: rgba(10,10,10,.8);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .3s; z-index: 2;
}
.project-card:hover .project-img-overlay { opacity: 1; }
.project-link {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--accent); color: #fff;
  font-size: .82rem; font-weight: 600;
  padding: .55rem 1.2rem; border-radius: 6px;
  transition: opacity .2s, transform .2s;
}
.project-link:hover { opacity: .85; transform: scale(1.04); }
.project-info { padding: 1.4rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: .7rem; }
.project-tags span {
  font-size: .65rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-glow);
  border: 1px solid rgba(77,159,255,.15); padding: .18rem .55rem; border-radius: 4px;
}
[data-theme="light"] .project-tags span { border-color: rgba(26,111,216,.15); }
.project-info h3 { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: .45rem; line-height: 1.4; }
.project-info p  { font-size: .82rem; color: var(--text-muted); line-height: 1.65; margin-bottom: .9rem; }
.project-link-inline {
  font-size: .8rem; color: var(--accent); font-weight: 500;
  transition: color .25s; display: inline-block; margin-right: .75rem;
}
.project-link-inline:hover { color: var(--accent-d); }
.project-link-group { display: flex; flex-wrap: wrap; }

/* ===== LOGROS ===== */
.section-accent {
  background: linear-gradient(135deg, var(--bg-2) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.logros-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3rem; padding: 4rem 0; }
.logro-item { text-align: center; }
.logro-number {
  font-family: 'Antonio', sans-serif;
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 700; color: var(--text); line-height: 1;
  display: block; margin-bottom: .75rem;
}
.logro-number em { color: var(--accent); font-style: normal; }
.logro-item p { font-size: .82rem; color: var(--text-muted); line-height: 1.55; max-width: 160px; margin: 0 auto; }

/* ===== PROCESS ===== */
.proceso-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.proceso-step {
  padding: 2rem; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 18px;
  transition: border-color .3s, transform .3s;
}
.proceso-step:hover { border-color: var(--border-h); transform: translateY(-3px); }
.step-number {
  font-family: 'Antonio', sans-serif; font-size: 4rem;
  font-weight: 700; color: var(--border); line-height: 1;
  margin-bottom: 1rem; letter-spacing: -.02em;
}
.proceso-step h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: .7rem; line-height: 1.3; }
.proceso-step p  { font-size: .875rem; color: var(--text-muted); line-height: 1.7; }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 5rem; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 2rem; }
.contact-item { display: flex; align-items: flex-start; gap: 1rem; }
.contact-icon { width: 38px; height: 38px; flex-shrink: 0; color: var(--accent); margin-top: 2px; }
.contact-icon svg { width: 100%; height: 100%; }
.contact-label {
  display: block; font-size: .72rem; color: var(--text-dim);
  font-weight: 500; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .22rem;
}
.contact-value { font-size: .95rem; color: var(--text); font-weight: 500; transition: color .25s; }
a.contact-value:hover { color: var(--accent); }
.contact-ctas { display: flex; flex-direction: column; gap: .75rem; margin-top: .5rem; }

.contact-form {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 18px; padding: 2.5rem;
  display: flex; flex-direction: column; gap: 1.25rem;
}
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label {
  font-size: .72rem; font-weight: 700; color: var(--text-muted);
  letter-spacing: .04em; text-transform: uppercase;
}
.form-group input,
.form-group textarea {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: .95rem;
  font-family: 'Inter', sans-serif; padding: .75rem 1rem;
  transition: border-color .25s, box-shadow .25s;
  resize: none; outline: none;
}
.form-group select {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: .95rem;
  font-family: 'Inter', sans-serif; padding: .75rem 1rem;
  transition: border-color .25s, box-shadow .25s;
  outline: none; cursor: pointer;
  -webkit-appearance: none; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group select option { background: var(--bg-card); color: var(--text); }

.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-dim); }
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-note { font-size: .75rem; color: var(--text-dim); text-align: center; }

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border); padding: 2rem 0;
  background: var(--bg-2);
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-logo { font-family: 'Antonio', sans-serif; font-size: 1.25rem; font-weight: 700; color: var(--text); }
.footer-copy { font-size: .78rem; color: var(--text-dim); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: .8rem; color: var(--text-dim); transition: color .25s; font-weight: 500; }
.footer-links a:hover { color: var(--accent); }

/* ===== REVEAL ANIMATIONS ===== */
.reveal-up, .reveal-fade, .reveal-left, .reveal-right {
  opacity: 0;
  transition: opacity .65s cubic-bezier(.4,0,.2,1), transform .65s cubic-bezier(.4,0,.2,1);
  will-change: opacity, transform;
}
.reveal-up    { transform: translateY(40px); }
.reveal-fade  { transform: none; }
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.revealed { opacity: 1 !important; transform: translate(0,0) !important; }
.delay-1 { transition-delay: .1s !important; }
.delay-2 { transition-delay: .2s !important; }
.delay-3 { transition-delay: .3s !important; }
.delay-4 { transition-delay: .45s !important; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .projects-grid { grid-template-columns: repeat(2,1fr); }
  .logros-grid   { grid-template-columns: repeat(2,1fr); gap: 2rem; }
  .proceso-grid  { grid-template-columns: repeat(2,1fr); }
  .about-grid    { grid-template-columns: 200px 1fr; }
  .skills-grid   { grid-template-columns: repeat(4,1fr); }
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-grid   { grid-template-columns: 1fr; }
  .about-photo-col { grid-row: auto; }
  .about-photo-card { max-width: 220px; }
  .about-content, .about-skills { grid-column: 1; }
}

@media (max-width: 768px) {
  /* Navbar siempre visible en móvil sin esperar scroll */
  #navbar {
    background: var(--nav-bg) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    box-shadow: 0 1px 0 var(--border) !important;
  }

  .section { padding: 5rem 0; }
  .nav-links { display: none; }
  .hamburger { display: flex; }

  /* Mobile hero: stack layout */
  .hero-main-row { flex-direction: column; gap: 1.5rem; }
  .hero-word { flex: none; text-align: center; font-size: clamp(3.5rem, 18vw, 7rem); }
  .hero-word-right { text-align: center; align-items: center; }
  .hero-side-desc { max-width: 100%; text-align: center; }
  .hero-card-wrap { width: clamp(160px, 55vw, 260px); }
  .hero-dev-row { font-size: clamp(2rem, 12vw, 5rem); text-align: center; }
  .hero-actions-row { justify-content: center; }
  .hero-stats-inline { display: none; }
  .hero-name-row { justify-content: center; flex-wrap: wrap; text-align: center; }

  .skills-grid { grid-template-columns: repeat(4,1fr); }
  .about-stats { gap: 1.5rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .logros-grid { grid-template-columns: 1fr 1fr; }
  .proceso-grid { grid-template-columns: 1fr; }
  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.6rem;
  }
  .footer-links { justify-content: center; }
  .hero-scroll { display: none; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .skills-grid { grid-template-columns: repeat(3,1fr); }
  .hero-actions-row { flex-direction: column; align-items: center; }
  .contact-form { padding: 1.5rem; }
  .hero-card-wrap { width: 55vw; }
}