/* ============================================================
   JMLFOTO · Web personal Jose Morales
   style.css · Minimalista editorial
   ============================================================ */

/* ─── VARIABLES ─────────────────────────────────────────────── */
:root {
  /* Paleta */
  --c-white:    #fafaf8;
  --c-black:    #0d0d0d;
  --c-dark:     #1a1a1a;
  --c-grey-1:   #2e2e2e;
  --c-grey-2:   #6b6b6b;
  --c-grey-3:   #a8a8a8;
  --c-grey-4:   #d8d8d4;
  --c-grey-5:   #efefec;

  /* Tipografías */
  --f-display: 'Cormorant Garamond', Georgia, serif;
  --f-body:    'DM Sans', system-ui, sans-serif;

  /* Tamaños */
  --fs-hero:   clamp(3.5rem, 8vw, 8rem);
  --fs-h2:     clamp(2rem, 4vw, 3.5rem);
  --fs-h3:     clamp(1.2rem, 2vw, 1.6rem);
  --fs-body:   clamp(0.95rem, 1.2vw, 1.05rem);
  --fs-small:  0.8rem;
  --fs-label:  0.7rem;

  /* Espaciado */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  5rem;
  --space-xl:  9rem;

  /* Layout */
  --max-w: 1200px;
  --pad:   2rem;

  /* Transiciones */
  --t:      0.3s ease;
  --t-slow: 0.7s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--c-white);
  color: var(--c-black);
  font-family: var(--f-body);
  font-size: var(--fs-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--c-grey-5); }
::-webkit-scrollbar-thumb { background: var(--c-grey-3); border-radius: 2px; }

/* Focus visible */
:focus-visible {
  outline: 1.5px solid var(--c-black);
  outline-offset: 3px;
}

/* ─── TIPOGRAFÍA ─────────────────────────────────────────────── */
h1, h2, h3 {
  font-family: var(--f-display);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--c-black);
}

h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

em {
  font-style: italic;
  color: var(--c-grey-2);
}

p { margin-bottom: 1.2em; }
p:last-child { margin-bottom: 0; }

/* ─── UTILIDADES ─────────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.section {
  padding: var(--space-xl) 0;
}

.label {
  display: block;
  font-family: var(--f-body);
  font-size: var(--fs-label);
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-grey-2);
  margin-bottom: 1.2rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: var(--space-lg);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--c-grey-4);
}

.section-head h2 { margin: 0; }

.ver-todo {
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--c-grey-2);
  transition: color var(--t);
}

.ver-todo:hover { color: var(--c-black); }

/* ─── PLACEHOLDERS (reemplazar por img reales) ───────────────── */
.img-ph {
  width: 100%;
  height: 100%;
  background: var(--c-grey-5);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.img-ph::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-grey-5) 0%, var(--c-grey-4) 100%);
}

.img-ph span {
  position: relative;
  font-size: 0.7rem;
  font-family: monospace;
  color: var(--c-grey-3);
  text-align: center;
  padding: 1rem;
  word-break: break-all;
  z-index: 1;
}

.img-ph img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
}

.proy-img .img-ph {
  background: transparent;
}

.proy-img .img-ph::before {
  display: none;
}

/* ─── REVEAL ANIMATIONS ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ─── NAVEGACIÓN ─────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.8rem 0;
  transition: all var(--t);
}

.nav.scrolled {
  background: rgba(250,250,248,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--c-grey-4);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--c-black);
  transition: opacity var(--t);
}

.nav-logo:hover { opacity: 0.5; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-grey-2);
  transition: color var(--t);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-black);
  transition: width var(--t);
}

.nav-link:hover { color: var(--c-black); }
.nav-link:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--c-black);
  transition: all var(--t);
}

/* ─── HERO ───────────────────────────────────────────────────── */
.hero {
  height: 100vh;
  min-height: 600px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Diapositivas */
.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.04);
  transition:
    opacity 1.8s ease,
    transform 8s ease;
}

.hero-slide.active {
  opacity: 1;
  transform: scale(1);
}

/* Capa oscura */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.42);
  z-index: 1;
  pointer-events: none;
}

/* Contenido centrado */
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 var(--pad);
  max-width: 900px;
}

.hero-name {
  font-family: var(--f-display);
  font-size: var(--fs-hero);
  font-weight: 300;
  color: var(--c-white);
  letter-spacing: 0.04em;
  line-height: 1;
  margin-bottom: 1.5rem;
  animation: fadeUp 1.2s ease 0.4s both;
}

.hero-desc {
  font-size: clamp(0.9rem, 1.5vw, 1.15rem);
  font-weight: 300;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0;
  animation: fadeUp 1.2s ease 0.7s both;
}

/* Puntos indicadores */
.hero-dots {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 0.6rem;
  animation: fadeIn 1s ease 1.5s both;
}

.hero-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transition: background 0.4s ease, transform 0.4s ease;
}

.hero-dot.active {
  background: rgba(255, 255, 255, 0.9);
  transform: scale(1.4);
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  right: var(--pad);
  z-index: 2;
  animation: fadeIn 1.5s ease 1.8s both;
}

.hero-scroll-line {
  display: block;
  width: 1px;
  height: 55px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.4));
  margin: 0 auto;
  animation: scrollDown 2.2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% {
    transform: scaleY(0);
    transform-origin: top;
    opacity: 0;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
    opacity: 1;
  }

  100% {
    transform: scaleY(1);
    transform-origin: bottom;
    opacity: 0;
  }
}

/* ─── SOBRE MÍ ───────────────────────────────────────────────── */
.sobre {
  background: var(--c-white);
}

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 6rem;
  align-items: center;
}

.sobre-img {
  position: relative;
}

.sobre-ph {
  aspect-ratio: 3/4;
  border-radius: 2px;
}

.sobre-text .label { margin-bottom: 1.5rem; }

.sobre-text h2 {
  margin-bottom: 2rem;
}

.sobre-text p {
  color: var(--c-grey-1);
  font-size: 1rem;
}

.sobre-datos {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-grey-4);
}

.dato {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.dato strong {
  font-family: var(--f-display);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--c-black);
  line-height: 1;
}

.dato span {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-grey-2);
}

.sobre-img img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center top;
  border-radius: 2px;
  display: block;
}

/* ─── PORTFOLIO ──────────────────────────────────────────────── */
.portfolio {
  background: var(--c-grey-5);
}

.port-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5px;
  background: var(--c-grey-4);
}

.port-item {
  background: var(--c-white);
  display: block;
  overflow: hidden;
  position: relative;
  transition: background var(--t);
}

.port-item:hover { background: var(--c-grey-5); }

.port-img {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.port-img .img-ph {
  transition: transform var(--t-slow);
}

.port-item:hover .port-img .img-ph {
  transform: scale(1.04);
}

/* Cuando añadas imágenes reales:
.port-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.port-item:hover .port-img img { transform: scale(1.04); } */

.port-info {
  padding: 1.8rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.port-info h3 {
  font-size: 1.3rem;
  font-weight: 400;
  margin: 0;
}

.port-info p {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--c-grey-2);
  margin: 0.3rem 0 0;
}

.port-arrow {
  font-size: 1.2rem;
  color: var(--c-grey-3);
  flex-shrink: 0;
  transition: all var(--t);
}

.port-item:hover .port-arrow {
  color: var(--c-black);
  transform: translateX(4px);
}

/* ─── PROYECTO DESTACADO ─────────────────────────────────────── */
.proyecto {
  background: var(--c-black);
  color: var(--c-white);
}

.proyecto .label { color: rgba(255,255,255,0.4); }
.proyecto h2 { color: var(--c-white); }
.proyecto em { color: rgba(255,255,255,0.45); }

.proy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.proy-ph {
  aspect-ratio: 4/5;
  border-radius: 2px;
}

.proy-ph::before {
  background: linear-gradient(135deg, #1a1a1a 0%, #2e2e2e 100%);
}

.proy-text .label { margin-bottom: 1.5rem; }
.proy-text h2 { margin-bottom: 2rem; }

.proy-text p {
  color: rgba(255,255,255,0.55);
  font-size: 1rem;
}

.proy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

.btn-proy {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-white);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 0.7rem 1.5rem;
  border-radius: 1px;
  transition: all var(--t);
}

.btn-proy:hover {
  background: var(--c-white);
  color: var(--c-black);
  border-color: var(--c-white);
}

.btn-proy-sec {
  background: transparent;
  color: rgba(255,255,255,0.5);
  border-color: rgba(255,255,255,0.15);
}

.btn-proy-sec:hover {
  background: var(--c-white);
  color: var(--c-black);
  border-color: var(--c-white);
}

/* ─── BLOG ───────────────────────────────────────────────────── */
.blog {
  background: var(--c-white);
}

.blog-lista {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.blog-item {
  border-bottom: 1px solid var(--c-grey-4);
}

.blog-item:first-child {
  border-top: 1px solid var(--c-grey-4);
}

.blog-link {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2rem 0;
  transition: background var(--t);
}

.blog-link:hover { background: var(--c-grey-5); }
.blog-link:hover { padding-left: 1rem; padding-right: 1rem; margin: 0 -1rem; }

.blog-img {
  aspect-ratio: 3/2;
  overflow: hidden;
  border-radius: 1px;
  flex-shrink: 0;
}

.blog-img .img-ph {
  transition: transform var(--t-slow);
}

.blog-link:hover .blog-img .img-ph {
  transform: scale(1.05);
}

.blog-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.blog-link:hover .blog-img img {
  transform: scale(1.05);
}

/* Cuando añadas imágenes:
.blog-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.blog-link:hover .blog-img img { transform: scale(1.05); } */

.blog-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.7rem;
}

.blog-cat {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-grey-2);
  border: 1px solid var(--c-grey-4);
  padding: 0.15rem 0.6rem;
  border-radius: 1px;
}

.blog-meta time {
  font-size: 0.78rem;
  color: var(--c-grey-3);
}

.blog-body h3 {
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  font-weight: 400;
  margin-bottom: 0.6rem;
  transition: opacity var(--t);
}

.blog-link:hover .blog-body h3 { opacity: 0.6; }

.blog-body p {
  font-size: 0.9rem;
  color: var(--c-grey-2);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─── COPIAS ─────────────────────────────────────────────────── */
.copias {
  background: var(--c-grey-5);
}

.copias-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.copias-ph {
  aspect-ratio: 4/5;
  border-radius: 2px;
}

.copias-text .label { margin-bottom: 1.5rem; }
.copias-text h2 { margin-bottom: 2rem; }

.copias-text p {
  color: var(--c-grey-1);
  font-size: 1rem;
}

.btn-copias {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-black);
  border-bottom: 1px solid var(--c-black);
  padding-bottom: 0.2rem;
  margin-top: 2rem;
  transition: opacity var(--t);
}

.btn-copias:hover { opacity: 0.5; }

/* ─── CONTACTO ───────────────────────────────────────────────── */
.contacto {
  background: var(--c-white);
}

.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 6rem;
  align-items: start;
}

.contacto-lead {
  font-family: var(--f-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 300;
  line-height: 1.3;
  color: var(--c-black);
  margin-bottom: 2.5rem;
}

.contacto-datos {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--c-grey-4);
}

.contacto-email {
  font-family: var(--f-display);
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--c-black);
  transition: opacity var(--t);
}

.contacto-email:hover { opacity: 0.5; }

.contacto-lugar {
  font-size: 0.85rem;
  color: var(--c-grey-2);
  letter-spacing: 0.05em;
}

.social-row {
  display: flex;
  gap: 1.5rem;
}

.social-item {
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-grey-2);
  transition: color var(--t);
}

.social-item:hover { color: var(--c-black); }

/* Formulario */
.contacto-form { display: flex; flex-direction: column; gap: 0; }

.form-group {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--c-grey-4);
  padding: 1.2rem 0;
}

.form-group label {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-grey-2);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  background: none;
  border: none;
  outline: none;
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 300;
  color: var(--c-black);
  width: 100%;
  resize: none;
  padding: 0;
  transition: color var(--t);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--c-grey-3);
}

.form-group input:focus,
.form-group textarea:focus {
  color: var(--c-black);
}

.btn-enviar {
  align-self: flex-start;
  font-family: var(--f-body);
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-white);
  background: var(--c-black);
  border: none;
  padding: 0.9rem 2.5rem;
  margin-top: 2rem;
  border-radius: 1px;
  cursor: pointer;
  transition: opacity var(--t);
}

.btn-enviar:hover { opacity: 0.7; }
.btn-enviar:disabled { opacity: 0.4; cursor: not-allowed; }

.form-ok {
  font-size: 0.85rem;
  color: var(--c-grey-2);
  margin-top: 1rem;
  letter-spacing: 0.05em;
}

/* ─── FOOTER ─────────────────────────────────────────────────── */
.footer {
  background: var(--c-black);
  padding: 2.5rem 0;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.footer-logo {
  font-family: var(--f-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--c-white);
  letter-spacing: 0.05em;
}

.footer-copy {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.05em;
}

.footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  transition: color var(--t);
}

.footer-nav a:hover { color: var(--c-white); }

/* ─── BACK TO TOP ────────────────────────────────────────────── */
.back-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 40px;
  height: 40px;
  background: var(--c-black);
  color: var(--c-white);
  border-radius: 50%;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  transition: all var(--t);
  z-index: 500;
}

.back-top:hover {
  background: var(--c-grey-1);
  transform: translateY(-3px);
}

/* ─── ANIMACIONES ────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 960px) {
  :root { --space-xl: 5rem; }

  .sobre-grid,
  .proy-grid,
  .copias-grid,
  .contacto-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .sobre-img { max-width: 340px; margin: 0 auto; }
  .proy-img  { max-width: 400px; }
  .copias-img { order: -1; max-width: 400px; }

  .port-grid { grid-template-columns: 1fr; }

  .sobre-datos { gap: 2rem; }
}

@media (max-width: 768px) {
  :root {
    --pad: 1.4rem;
    --space-xl: 4rem;
  }

  /* Nav móvil */
  .nav-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    inset: 0;
    background: var(--c-white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform var(--t);
    z-index: 99;
  }

  .nav-menu.open { transform: translateX(0); }

  .nav-link {
    font-size: 1rem;
    letter-spacing: 0.15em;
  }

  /* Hero */
  .hero-content { padding-bottom: 3.5rem; }

  /* Blog */
  .blog-link {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .blog-img { max-width: 100%; }

  /* Footer */
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .sobre-datos { flex-wrap: wrap; gap: 1.5rem; }
  .proy-links  { flex-direction: column; }
  .social-row  { gap: 1rem; }
  .back-top    { bottom: 1rem; right: 1rem; }
}