:root {
  --bg: #f6f6f4;
  --ink: #171717;
  --muted: #5c5c5c;
  --paper: #ffffff;
  --line: #e7e7e7;
  --primary: #4f78ff;
  --primaryT: rgba(79, 120, 255, 0.24);
  --transDur: 0.3s;
  --radius: 16px;
  --shadow: 0 14px 40px rgba(15, 15, 15, 0.12);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.4;
}

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

/* INTRO */
#intro {
  position: fixed;
  inset: 0;
  background: #0d0d0d;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.8s ease;
}

#intro.hide {
  opacity: 0;
  pointer-events: none;
}

#typewriter {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  border-right: 2px solid #fff;
  padding-right: 6px;
  animation: blink 1s infinite;
}

@keyframes blink {
  50% {
    border-color: transparent;
  }
}

/* NAV */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.68);
  backdrop-filter: blur(12px);
}

.nav {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
}

/* ── Logos de marca ── */
.brand-logo {
  height: 36px;
  width: auto;
}

/* Tema claro: muestra BN, oculta NB */
.brand-logo--light { display: block !important; }
.brand-logo--dark  { display: none  !important; }

/* Tema oscuro: muestra NB, oculta BN */
body.dark-theme .brand-logo--light { display: none  !important; }
body.dark-theme .brand-logo--dark  { display: block !important; }

/* Logo intro */
.intro-logo {
  width: 100vw;
  height: 100vh;
  object-fit: contain;
  padding: 10%;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.92rem;
  transition: color 0.25s ease;
}

.nav-links a:hover {
  color: var(--ink);
}

.theme {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.theme__fill,
.theme__icon {
  transition: 0.3s;
}

.theme__fill {
  background-color: var(--bg);
  display: block;
  mix-blend-mode: difference;
  position: fixed;
  inset: 0;
  height: 100%;
  transform: translateX(-100%);
  pointer-events: none;
}

.theme__icon,
.theme__toggle {
  z-index: 1;
}

.theme__icon,
.theme__icon-part {
  position: relative;
}

.theme__icon {
  display: block;
  position: absolute;
  top: 0.75em;
  left: 0.75em;
  width: 1.5em;
  height: 1.5em;
}

.theme__icon-part {
  border-radius: 50%;
  box-shadow: 0.4em -0.4em 0 0.5em hsl(0, 0%, 100%) inset;
  top: calc(50% - 0.5em);
  left: calc(50% - 0.5em);
  width: 1em;
  height: 1em;
  transition:
    box-shadow var(--transDur) ease-in-out,
    opacity var(--transDur) ease-in-out,
    transform var(--transDur) ease-in-out;
  transform: scale(0.5);
}

.theme__icon-part ~ .theme__icon-part {
  background-color: hsl(0, 0%, 100%);
  border-radius: 0.05em;
  top: 50%;
  left: calc(50% - 0.05em);
  transform: rotate(0deg) translateY(0.5em);
  transform-origin: 50% 0;
  width: 0.1em;
  height: 0.2em;
}

.theme__icon-part:nth-child(3) {
  transform: rotate(45deg) translateY(0.45em);
}

.theme__icon-part:nth-child(4) {
  transform: rotate(90deg) translateY(0.45em);
}

.theme__icon-part:nth-child(5) {
  transform: rotate(135deg) translateY(0.45em);
}

.theme__icon-part:nth-child(6) {
  transform: rotate(180deg) translateY(0.45em);
}

.theme__icon-part:nth-child(7) {
  transform: rotate(225deg) translateY(0.45em);
}

.theme__icon-part:nth-child(8) {
  transform: rotate(270deg) translateY(0.5em);
}

.theme__icon-part:nth-child(9) {
  transform: rotate(315deg) translateY(0.5em);
}

.theme__toggle,
.theme__toggle-wrap {
  position: relative;
}

.theme__toggle,
.theme__toggle::before {
  display: block;
}

.theme__toggle {
  background-color: hsl(48, 90%, 85%);
  border-radius: 25% / 50%;
  box-shadow: 0 0 0 0.125em var(--primaryT);
  padding: 0.25em;
  width: 6em;
  height: 3em;
  -webkit-appearance: none;
  appearance: none;
  border: 0;
  cursor: pointer;
  transition:
    background-color var(--transDur) ease-in-out,
    box-shadow 0.15s ease-in-out,
    transform var(--transDur) ease-in-out;
}

.theme__toggle::before {
  background-color: hsl(48, 90%, 55%);
  border-radius: 50%;
  content: "";
  width: 2.5em;
  height: 2.5em;
  transition: 0.3s;
}

.theme__toggle:focus {
  box-shadow: 0 0 0 0.125em var(--primary);
  outline: transparent;
}

.theme__toggle:checked {
  background-color: hsl(198, 90%, 15%);
}

.theme__toggle:checked::before,
.theme__toggle:checked ~ .theme__icon {
  transform: translateX(3em);
}

.theme__toggle:checked::before {
  background-color: hsl(198, 90%, 55%);
}

.theme__toggle:checked ~ .theme__fill {
  transform: translateX(0);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(1) {
  box-shadow: 0.2em -0.2em 0 0.2em hsl(0, 0%, 100%) inset;
  transform: scale(1);
  top: 0.2em;
  left: -0.2em;
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part ~ .theme__icon-part {
  opacity: 0;
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(2) {
  transform: rotate(45deg) translateY(0.8em);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(3) {
  transform: rotate(90deg) translateY(0.8em);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(4) {
  transform: rotate(135deg) translateY(0.8em);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(5) {
  transform: rotate(180deg) translateY(0.8em);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(6) {
  transform: rotate(225deg) translateY(0.8em);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(7) {
  transform: rotate(270deg) translateY(0.8em);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(8) {
  transform: rotate(315deg) translateY(0.8em);
}

.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(9) {
  transform: rotate(360deg) translateY(0.8em);
}

.theme__toggle-wrap {
  margin-left: 0.5rem;
}

@supports selector(:focus-visible) {
  .theme__toggle:focus {
    box-shadow: 0 0 0 0.125em var(--primaryT);
  }

  .theme__toggle:focus-visible {
    box-shadow: 0 0 0 0.125em var(--primary);
  }
}

/* HERO */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: -30px;
  background: url("img/hero.jpg")
    center/cover;
  filter: grayscale(0.1) contrast(1.04);
  transition: transform 0.2s linear;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.548),
    rgba(246, 246, 244, 0.521)
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 1.4rem;
}

.hero-content h1 {
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.hero-content p {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
}

/* PROYECTOS */
.projects {
  max-width: 1300px;
  margin: 0 auto;
  padding: 4.5rem 5% 5rem;
}

.section-head {
  margin-bottom: 1.6rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #7a7a7a;
  font-size: 0.72rem;
  margin-bottom: 0.3rem;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
}

.toolbar {
  margin-bottom: 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.toolbar-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.search-box,
.sort-box {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 46px;
  padding: 0 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
}

.search-box input,
.sort-box select {
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
}

.search-box input {
  min-width: 250px;
}

.sort-box select {
  cursor: pointer;
}

.filter-btn {
  border: 1px solid var(--line);
  background: var(--paper);
  color: #3e3e3e;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-size: 0.86rem;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.item {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--line);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
  background: #fff;
  transform-origin: center center;
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.item:focus-visible {
  outline: 2px solid #4f78ff;
  outline-offset: 3px;
}

.item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(0, 0, 0, 0.68));
  z-index: 1;
}

.item:hover img {
  transform: scale(1.06);
}

.item:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.item-origin {
  transform: scale(0.985);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
}

.item-info {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  color: #fff;
  padding: 1rem;
  display: grid;
  gap: 0.22rem;
}

.item-info strong {
  font-size: clamp(0.9rem, 1.2vw, 0.98rem);
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.item-info span {
  font-size: clamp(0.75rem, 1vw, 0.82rem);
  line-height: 1.25;
  overflow-wrap: anywhere;
  opacity: 0.88;
}

.item-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 3;
  background: rgba(255, 255, 255, 0.9);
  color: #1f1f1f;
  border-radius: 99px;
  font-size: 0.72rem;
  padding: 0.25rem 0.55rem;
}

.item-skeleton {
  pointer-events: none;
  cursor: default;
}

.item-skeleton::before {
  display: none;
}

.skeleton-media {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, #ececeb 8%, #f5f5f4 18%, #ececeb 33%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.1s linear infinite;
}

.skeleton-line {
  display: block;
  border-radius: 999px;
  background: linear-gradient(
    110deg,
    rgba(255, 255, 255, 0.24) 8%,
    rgba(255, 255, 255, 0.62) 18%,
    rgba(255, 255, 255, 0.24) 33%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.1s linear infinite;
}

.skeleton-title {
  width: 70%;
  height: 12px;
}

.skeleton-subtitle {
  width: 45%;
  height: 10px;
}

@keyframes skeleton-shimmer {
  to {
    background-position-x: -200%;
  }
}

.empty {
  grid-column: 1 / -1;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 1rem;
}

.projects-contact {
  margin-top: 1.35rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
  background: var(--paper);
  text-align: center;
}

.projects-contact-title {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 0.8rem;
}

.projects-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
}

.projects-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 42px;
  padding: 0 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.02);
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 500;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.projects-contact-btn i {
  font-size: 1rem;
}

.projects-contact-btn:hover {
  transform: translateY(-1px);
  border-color: #b9b9b9;
  background: rgba(0, 0, 0, 0.04);
}

.projects-contact-btn.is-whatsapp {
  border-color: rgba(37, 211, 102, 0.35);
}

.projects-contact-btn.is-whatsapp i {
  color: #0b6b38;
}

.projects-contact-btn.is-mail {
  border-color: rgba(59, 130, 246, 0.35);
}

.projects-contact-btn.is-mail i {
  color: #0a2568;
}

/* VIEWER */
#viewer {
  position: fixed;
  inset: 0;
  border: 0;
  padding: 0;
  max-width: none;
  max-height: none;
  background: rgba(9, 9, 9, 0.5);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease;
  z-index: 300;
}

#viewer.active {
  opacity: 1;
  visibility: visible;
}

#viewer::backdrop {
  background: rgba(9, 9, 9, 0.5);
  backdrop-filter: blur(8px);
}

.viewer-content {
  position: relative;
  height: min(92vh, 900px);
  margin: 4vh auto;
  width: min(1300px, 94%);
  border-radius: 22px;
  overflow: hidden;
  background: var(--paper);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 300px 1fr 360px;
  will-change: transform, opacity, filter;
  transition: transform 0.48s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease, filter 0.45s ease;
}

.viewer-left,
.viewer-right {
  padding: 2rem 1.5rem;
  overflow-y: auto;
}

.viewer-left {
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.015), transparent);
}

.viewer-right {
  border-left: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.015), transparent);
  display: grid;
  align-content: start;
  gap: 0.9rem;
}

.viewer-kicker {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #8a8a8a;
  margin-bottom: 0.7rem;
}

#v-title {
  font-size: clamp(1.5rem, 2vw, 2rem);
  line-height: 1.05;
  margin-bottom: 0.45rem;
}

.viewer-location {
  color: var(--muted);
  margin-bottom: 1rem;
  font-size: 0.98rem;
}

.viewer-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.2rem;
}

.viewer-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: #171717;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
}

.viewer-pill-soft {
  background: #f0f0f0;
  color: #222;
}

.meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-bottom: 1.4rem;
}

.meta p {
  color: #2f2f2f;
  font-size: clamp(0.8rem, 1vw, 0.88rem);
  line-height: 1.35;
  display: grid;
  gap: 0.4rem;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.75);
}

.meta p i {
  font-size: 1rem;
  color: #7f7f7f;
}

.meta p strong {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #8a8a8a;
  font-weight: 600;
}

.meta-value {
  color: var(--ink);
  font-size: clamp(0.84rem, 1.1vw, 0.92rem);
  font-weight: 600;
  overflow-wrap: anywhere;
}

.viewer-contact {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.viewer-contact a {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  min-height: 64px;
  padding: 0.7rem;
  transition: 0.2s ease;
  background: rgba(255, 255, 255, 0.75);
}

.viewer-contact a i {
  margin-right: 0;
}

.contact-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.06);
  color: inherit;
  font-size: 1.15rem;
}

#v-wpp {
  border-color: rgba(37, 211, 102, 0.25);
}

#v-wpp .contact-icon {
  background: rgba(37, 211, 102, 0.22);
  color: #043d1f;
}

#v-mail {
  border-color: rgba(59, 130, 246, 0.22);
}

#v-mail .contact-icon {
  background: rgba(59, 130, 246, 0.22);
  color: #041542;
}

#v-wpp:hover {
  border-color: rgba(37, 211, 102, 0.45);
}

#v-mail:hover {
  border-color: rgba(59, 130, 246, 0.42);
}

.viewer-contact a:hover {
  border-color: #bbb;
  transform: translateY(-1px);
}

.viewer-center {
  background: linear-gradient(180deg, #f5f5f4, #ececea);
  padding: 1.6rem;
  display: flex;
  align-items: stretch;
}

.viewer-stage {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 620px;
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  background: #dcdcd8;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
  transform: scale(0.985);
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.viewer-center img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.02);
  transition: 0.35s ease;
}

.viewer-caption {
  position: absolute;
  left: 1.15rem;
  right: 1.15rem;
  bottom: 1.15rem;
  z-index: 2;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(18, 18, 18, 0.22), rgba(18, 18, 18, 0.72));
  color: #fff;
  backdrop-filter: blur(10px);
}

.viewer-caption strong {
  font-size: 1rem;
  font-weight: 600;
}

.viewer-caption span {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.84rem;
  text-align: right;
}

#viewer.active img {
  opacity: 1;
  transform: scale(1);
}

#viewer.active .viewer-stage {
  transform: scale(1);
}

#viewer.active .viewer-caption {
  animation: caption-rise 0.5s ease 0.08s both;
}

#v-desc {
  color: #2b2b2b;
  font-size: 1rem;
  line-height: 1.7;
}

.block {
  margin-top: 0;
}

.detail-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem 1rem 1.05rem;
  background: rgba(255, 255, 255, 0.76);
}

.detail-card-highlight {
  padding: 1.15rem 1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 248, 248, 0.92));
}

.block h4 {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #666;
  margin-bottom: 0.7rem;
}

.block ul {
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.block ul li::before {
  content: "•";
  margin-right: 0.45rem;
  color: #8a8a8a;
}

.close-btn {
  position: absolute;
  top: 14px;
  right: 16px;
  border: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.55rem;
  background: rgba(255, 255, 255, 0.86);
  transition: transform 0.2s ease;
}

.close-btn:hover {
  transform: scale(1.06);
}

@keyframes caption-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* FOOTER */
.footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding: 1.6rem 5% 2.4rem;
  color: #616161;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer a:hover {
  text-decoration: underline;
}

/* FADE */
.fade {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade.delay-1 {
  transition-delay: 0.12s;
}

.fade.show {
  opacity: 1;
  transform: translateY(0);
}

/* ──────────────────────────────────────────────
   NAV HAMBURGER
────────────────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0 6px;
  background: transparent;
  border: 0;
  cursor: pointer;
  border-radius: 10px;
  transition: background 0.2s;
  order: 2;
}

.nav-hamburger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ──────────────────────────────────────────────
   RESPONSIVE
────────────────────────────────────────────── */

/* ---- Tablet ancho: 3 col → 2 col grid ---- */
@media (max-width: 1280px) {
  .viewer-content {
    grid-template-columns: 280px 1fr 320px;
  }
}

@media (max-width: 1100px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .viewer-content {
    grid-template-columns: 260px 1fr 300px;
  }
}

/* ---- Tablet vertical: viewer apilado ---- */
@media (max-width: 960px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .viewer-content {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    height: min(95vh, 980px);
    overflow-y: auto;
    overflow-x: hidden;
  }

  /* Orden visual: info → imagen → detalles */
  .viewer-left  { order: 1; border-right: 0; border-bottom: 1px solid var(--line); padding: 1.4rem 1.4rem 1.2rem; }
  .viewer-center { order: 2; padding: 1rem; min-height: 0; }
  .viewer-right { order: 3; border-left: 0; border-top: 1px solid var(--line); padding: 1.4rem; }

  .viewer-stage {
    min-height: 46vw;
  }

  .meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .viewer-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---- Mobile hamburger activa ---- */
@media (max-width: 720px) {
  .nav {
    padding: 0.85rem 4%;
    flex-wrap: wrap;
    gap: 0;
  }

  .brand {
    flex: 1;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    order: 3;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    transition: max-height 0.35s ease;
    padding: 0;
  }

  .nav-links.open {
    max-height: 260px;
    padding-bottom: 1rem;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 0.65rem 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--line);
  }

  .nav-links a:last-of-type {
    border-bottom: 0;
  }

  /* Toggle dentro del menú desplegable */
  .nav-links .theme {
    margin-top: 0.8rem;
  }

  /* Toggle más pequeño en móvil */
  .theme__toggle {
    width: 4.8em;
    height: 2.4em;
  }

  .theme__toggle::before {
    width: 2em;
    height: 2em;
  }

  .theme__toggle:checked::before,
  .theme__toggle:checked ~ .theme__icon {
    transform: translateX(2.4em);
  }

  .theme__icon {
    top: 0.55em;
    left: 0.55em;
    width: 1.3em;
    height: 1.3em;
  }

  /* Toolbar: apila filtros + acciones */
  .toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.7rem;
  }

  .toolbar-actions {
    flex-direction: column;
    gap: 0.6rem;
  }

  .search-box,
  .sort-box {
    width: 100%;
  }

  .search-box input {
    min-width: 0;
    width: 100%;
  }

  .sort-box select {
    width: 100%;
  }

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

/* ---- Mobile pequeño ---- */
@media (max-width: 480px) {
  .hero-content h1 {
    font-size: clamp(1.6rem, 8vw, 2.4rem);
  }

  .projects {
    padding: 3rem 4% 4rem;
  }

  .viewer-content {
    width: 100%;
    border-radius: 18px 18px 0 0;
    margin: auto 0 0;
    height: 96dvh;
  }

  #viewer {
    align-items: flex-end;
    display: flex;
  }

  .viewer-left {
    padding: 1.1rem 1rem;
  }

  .viewer-stage {
    min-height: 52vw;
    border-radius: 16px;
  }

  .viewer-caption {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }

  .viewer-caption span {
    text-align: left;
  }

  .meta {
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
  }

  .meta p {
    padding: 0.65rem 0.7rem;
    border-radius: 12px;
    font-size: 0.82rem;
  }

  .viewer-contact {
    grid-template-columns: 1fr 1fr;
  }

  .viewer-contact a {
    min-height: 52px;
  }

  .contact-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .close-btn {
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    font-size: 1.3rem;
  }

  .footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.4rem 4% 2rem;
    gap: 0.4rem;
  }
}

/* ---- Pantallas muy pequeñas (<360px) ---- */
@media (max-width: 360px) {
  .meta {
    grid-template-columns: 1fr;
  }

  .viewer-contact {
    grid-template-columns: 1fr 1fr;
  }
}

body.dark-theme {
  --bg: #121212;
  --ink: #ffffff;
  --muted: #ffffff;
  --paper: #1e1e1e;
  --line: #2c2c2c;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
}

body.dark-theme,
body.dark-theme p,
body.dark-theme h1,
body.dark-theme h2,
body.dark-theme h3,
body.dark-theme h4,
body.dark-theme li,
body.dark-theme a,
body.dark-theme label,
body.dark-theme button,
body.dark-theme input,
body.dark-theme select {
  color: #ffffff;
}

body.dark-theme .header {
  border-bottom-color: rgba(255, 255, 255, 0.08);
  background: rgba(16, 16, 16, 0.62);
}

body.dark-theme .hero-overlay {
  background: linear-gradient(180deg, rgba(20, 20, 20, 0.72), rgba(18, 18, 18, 0.92));
}

body.dark-theme .viewer-center {
  background: #181818;
}

body.dark-theme .nav-links a,
body.dark-theme .hero-content p,
body.dark-theme .eyebrow,
body.dark-theme .viewer-kicker,
body.dark-theme .viewer-location,
body.dark-theme .footer,
body.dark-theme .item-info span,
body.dark-theme .block h4,
body.dark-theme .meta p strong,
body.dark-theme .search-box,
body.dark-theme .sort-box,
body.dark-theme .filter-btn,
body.dark-theme .item-tag,
body.dark-theme .close-btn {
  color: #ffffff;
}

body.dark-theme .theme-switch {
  color: #ffffff;
}

body.dark-theme .theme-switch-track {
  background: #101010;
  border-color: rgba(255, 255, 255, 0.14);
}

body.dark-theme .theme-switch-thumb {
  background: #ffffff;
}

body.dark-theme .search-box input::placeholder {
  color: rgba(255, 255, 255, 0.74);
}

body.dark-theme .search-box,
body.dark-theme .sort-box,
body.dark-theme .filter-btn,
body.dark-theme .item-tag,
body.dark-theme .close-btn {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
}

body.dark-theme .filter-btn.active,
body.dark-theme .viewer-pill,
body.dark-theme .theme-switch input:checked + .theme-switch-track {
  background: #ffffff;
  color: #121212;
}

body.dark-theme .meta p i,
body.dark-theme .contact-icon,
body.dark-theme .block ul li::before {
  color: #ffffff;
}

body.dark-theme .contact-icon {
  background: rgba(255, 255, 255, 0.08);
}

body.dark-theme #v-wpp .contact-icon {
  background: rgba(14, 111, 56, 0.9);
  color: #ffffff;
}

body.dark-theme #v-mail .contact-icon {
  background: rgba(23, 74, 173, 0.9);
  color: #ffffff;
}

body.dark-theme .viewer-caption span {
  color: rgba(255, 255, 255, 0.92);
}

body.dark-theme .viewer-left,
body.dark-theme .viewer-right,
body.dark-theme .detail-card,
body.dark-theme .detail-card-highlight,
body.dark-theme .meta p,
body.dark-theme .viewer-contact a {
  background: rgba(255, 255, 255, 0.03);
}

body.dark-theme .viewer-pill-soft {
  background: rgba(0, 0, 0, 0.42);
  color: #ffffff;
}

body.dark-theme .viewer-stage {
  background: #111;
}

body.dark-theme #v-desc {
  color: #ffffff;
}

body.dark-theme .projects-contact {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.12);
}

body.dark-theme .projects-contact-title {
  color: rgba(255, 255, 255, 0.88);
}

body.dark-theme .projects-contact-btn {
  background: #1b1b1b;
  border-color: rgba(255, 255, 255, 0.16);
  color: #ffffff;
}

body.dark-theme .projects-contact-btn:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: #242424;
}

body.dark-theme .projects-contact-btn.is-whatsapp i,
body.dark-theme .projects-contact-btn.is-mail i {
  color: #ffffff;
}

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