/* ==========================================================================
   SCS BUILDINGS — Design tokens
   Paleta: charcoal cálido + blanco roto + piedra + acento óxido
   Tipografía: Fraunces (display editorial) / Inter (cuerpo) / JetBrains Mono (datos)
   ========================================================================== */

:root {
  --color-ink: #15140f;
  --color-ink-soft: #211f18;
  --color-paper: #f4f0e8;
  --color-paper-dim: #eae4d6;
  --color-stone: #a39c8e;
  --color-stone-light: #d8d2c4;
  --color-line: #37342c;
  --color-line-on-paper: #d3ccbc;
  --color-accent: #a6491f;
  --color-accent-dim: #7c3717;
  --color-accent-on-ink: #d97a4c;

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, monospace;

  --container: 1320px;
  --gutter: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.6s;
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

p { margin: 0; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

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

.wrap {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 15px 26px;
  border: 1px solid currentColor;
  border-radius: 0;
  cursor: pointer;
  background: transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  white-space: nowrap;
}

.btn svg { width: 13px; height: 13px; transition: transform var(--dur) var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn--solid {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-paper);
}
.btn--solid:hover { background: var(--color-accent); border-color: var(--color-accent); }

.btn--ghost {
  color: var(--color-ink);
  border-color: var(--color-line-on-paper);
}
.btn--ghost:hover { border-color: var(--color-ink); background: rgba(21,20,15,0.04); }

.btn--ghost-light {
  color: var(--color-paper);
  border-color: rgba(244,240,232,0.4);
}
.btn--ghost-light:hover { border-color: var(--color-paper); background: rgba(244,240,232,0.08); }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--dur) var(--ease), padding var(--dur) var(--ease), border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(244,240,232,0.92);
  backdrop-filter: blur(10px);
  padding-block: 14px;
  border-color: var(--color-line-on-paper);
}

.logo {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--color-paper);
  display: flex;
  align-items: baseline;
  gap: 8px;
  transition: color var(--dur) var(--ease);
}
.logo span { color: var(--color-accent-on-ink); }
.site-header.is-scrolled .logo { color: var(--color-ink); }
.site-header.is-scrolled .logo span { color: var(--color-accent); }

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-desktop a:not(.btn) {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(244,240,232,0.82);
  position: relative;
  padding-bottom: 3px;
  transition: color var(--dur) var(--ease);
}
.nav-desktop a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--color-accent-on-ink);
  transition: width var(--dur) var(--ease);
}
.nav-desktop a:not(.btn):hover { color: var(--color-paper); }
.nav-desktop a:not(.btn):hover::after { width: 100%; }

.site-header.is-scrolled .nav-desktop a:not(.btn) { color: rgba(21,20,15,0.7); }
.site-header.is-scrolled .nav-desktop a:not(.btn)::after { background: var(--color-accent); }
.site-header.is-scrolled .nav-desktop a:not(.btn):hover { color: var(--color-ink); }

.nav-links { display: flex; align-items: center; gap: 36px; }

.nav-cta { display: none; }
@media (min-width: 1020px) { .nav-cta { display: inline-flex; } }

.site-header.is-scrolled .btn--ghost-light {
  color: var(--color-ink);
  border-color: var(--color-line-on-paper);
}
.site-header.is-scrolled .btn--ghost-light:hover {
  border-color: var(--color-ink);
  background: rgba(21,20,15,0.04);
}

.hamburger {
  display: none;
  width: 40px; height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  position: relative;
  z-index: 210;
}
.hamburger span {
  position: absolute;
  left: 8px; right: 8px;
  height: 1px;
  background: var(--color-paper);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-header.is-scrolled .hamburger span { background: var(--color-ink); }
.hamburger span:nth-child(1) { top: 15px; }
.hamburger span:nth-child(2) { top: 20px; }
.hamburger span:nth-child(3) { top: 25px; }

.nav-open .hamburger span { background: var(--color-paper) !important; }
.nav-open .hamburger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-open .hamburger span:nth-child(2) { opacity: 0; }
.nav-open .hamburger span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

@media (max-width: 1019px) {
  .nav-desktop { display: none; }
  .hamburger { display: block; }
}

.nav-mobile {
  position: fixed;
  inset: 0;
  background: var(--color-ink);
  z-index: 190;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 var(--gutter);
  transform: translateY(-100%);
  transition: transform 0.55s var(--ease);
}
.nav-open .nav-mobile { transform: translateY(0); }

.nav-mobile ul { display: flex; flex-direction: column; gap: 4px; }
.nav-mobile a:not(.btn) {
  font-family: var(--font-display);
  font-size: clamp(32px, 9vw, 48px);
  font-weight: 400;
  color: var(--color-paper);
  padding: 12px 0;
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
  border-bottom: 1px solid rgba(244,240,232,0.12);
}
.nav-mobile a:not(.btn) small {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-stone);
}
.nav-mobile .btn { margin-top: 32px; align-self: flex-start; }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: var(--color-paper);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.06);
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,14,10,0.55) 0%, rgba(15,14,10,0.25) 38%, rgba(15,14,10,0.72) 100%);
}

.hero-content {
  padding: 0 var(--gutter) 72px;
  max-width: var(--container);
  margin-inline: auto;
  width: 100%;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-stone-light);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
}
.hero-eyebrow::before { content: ""; width: 30px; height: 1px; background: var(--color-accent-on-ink); }

.hero h1 {
  font-size: clamp(46px, 8.4vw, 108px);
  max-width: 15ch;
  color: var(--color-paper);
}
.hero h1 em { color: var(--color-accent-on-ink); font-style: normal; }

.hero-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-top: 34px;
  padding-top: 34px;
  border-top: 1px solid rgba(244,240,232,0.18);
  flex-wrap: wrap;
}

.hero-sub {
  max-width: 42ch;
  font-size: 17px;
  color: rgba(244,240,232,0.82);
}

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-scroll {
  position: absolute;
  right: var(--gutter);
  bottom: 34px;
  display: none;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(244,240,232,0.6);
}
.hero-scroll-line {
  width: 1px; height: 46px;
  background: rgba(244,240,232,0.3);
  position: relative;
  overflow: hidden;
}
.hero-scroll-line::after {
  content: "";
  position: absolute;
  top: -100%; left: 0; right: 0; height: 100%;
  background: var(--color-accent-on-ink);
  animation: scrollLine 2.2s var(--ease) infinite;
}
@keyframes scrollLine { to { top: 100%; } }
@media (min-width: 720px) { .hero-scroll { display: flex; flex-direction: column; align-items: center; } }

/* ==========================================================================
   Section shell + reveal animation
   ========================================================================== */

section { position: relative; }

.section {
  padding-block: clamp(80px, 11vw, 150px);
}
.section--tight { padding-block: clamp(60px, 8vw, 100px); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: clamp(48px, 6vw, 84px);
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: clamp(32px, 4.6vw, 58px);
  max-width: 16ch;
}

.section-head p {
  max-width: 34ch;
  color: var(--color-ink);
  opacity: 0.62;
  font-size: 15.5px;
  padding-bottom: 6px;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Services
   ========================================================================== */

.services-list { border-top: 1px solid var(--color-line-on-paper); }

.service-row {
  display: grid;
  grid-template-columns: 90px 1fr 1.4fr 30px;
  gap: 28px;
  align-items: center;
  padding: 30px 0;
  border-bottom: 1px solid var(--color-line-on-paper);
  transition: padding-inline var(--dur) var(--ease);
}
.service-row:hover { padding-inline: 8px; background: rgba(166,73,31,0.035); }

.service-num { font-family: var(--font-mono); font-size: 13px; color: var(--color-accent); }

.service-name { font-family: var(--font-display); font-size: clamp(22px, 2.6vw, 30px); font-weight: 500; }

.service-desc { font-size: 14.5px; opacity: 0.62; max-width: 46ch; }

.service-arrow {
  justify-self: end;
  width: 16px; height: 16px;
  opacity: 0.35;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.service-row:hover .service-arrow { transform: translate(4px,-4px); opacity: 1; }

@media (max-width: 720px) {
  .service-row { grid-template-columns: 40px 1fr; row-gap: 10px; }
  .service-desc { grid-column: 2; }
  .service-arrow { display: none; }
}

/* ==========================================================================
   Projects
   ========================================================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.project-card {
  position: relative;
  cursor: pointer;
  overflow: hidden;
  border: none;
  background: none;
  text-align: left;
  padding: 0;
  display: block;
  width: 100%;
  color: inherit;
}

.project-card:nth-child(1) { grid-column: span 12; }
.project-card:nth-child(2) { grid-column: span 6; }
.project-card:nth-child(3) { grid-column: span 6; }
.project-card:nth-child(4) { grid-column: span 5; }
.project-card:nth-child(5) { grid-column: span 7; }
.project-card:nth-child(6) { grid-column: span 12; }

@media (max-width: 900px) {
  .project-card,
  .project-card:nth-child(1),
  .project-card:nth-child(2),
  .project-card:nth-child(3),
  .project-card:nth-child(4),
  .project-card:nth-child(5),
  .project-card:nth-child(6) { grid-column: span 12; }
}

.project-frame {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-stone-light);
}
.project-card:nth-child(1) .project-frame { aspect-ratio: 16/8; }

.project-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease);
}
.project-card:hover .project-frame img { transform: scale(1.06); }

.project-frame::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15,14,10,0) 40%, rgba(15,14,10,0.72) 100%);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.project-card:hover .project-frame::before { opacity: 1; }

.project-mark {
  position: absolute;
  top: 16px; left: 16px;
  width: 15px; height: 15px;
  opacity: 0.85;
}
.project-mark svg { width: 100%; height: 100%; }
.project-mark, .project-mark svg * { stroke: #fff; }

.project-info {
  position: absolute;
  left: 22px; right: 22px; bottom: 20px;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  transform: translateY(10px);
  opacity: 0;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.project-card:hover .project-info { transform: translateY(0); opacity: 1; }

.project-info h3 { font-size: clamp(18px, 2vw, 24px); font-weight: 500; }
.project-info .project-cat {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  margin-top: 4px;
  display: block;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  opacity: 0.55;
}

.projects-more {
  margin-top: 48px;
  display: flex;
  justify-content: center;
}

/* ==========================================================================
   Project modal / lightbox
   ========================================================================== */

.project-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: var(--color-ink);
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.5s var(--ease), visibility 0.5s var(--ease);
  overflow-y: auto;
}
.project-modal.is-open { visibility: visible; opacity: 1; }

.modal-inner {
  max-width: 1100px;
  margin-inline: auto;
  padding: 100px var(--gutter) 100px;
  color: var(--color-paper);
}

.modal-close {
  position: fixed;
  top: 24px; right: var(--gutter);
  z-index: 310;
  width: 46px; height: 46px;
  border: 1px solid rgba(244,240,232,0.3);
  background: rgba(21,20,15,0.4);
  color: var(--color-paper);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.modal-close:hover { border-color: var(--color-paper); background: rgba(21,20,15,0.7); }
.modal-close svg { width: 16px; height: 16px; }

.modal-eyebrow { display: flex; gap: 14px; align-items: center; margin-bottom: 20px; }
.modal-cat {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-on-ink);
}
.modal-index { font-family: var(--font-mono); font-size: 12px; color: var(--color-stone); }

.modal-title { font-size: clamp(34px, 6vw, 62px); max-width: 20ch; margin-bottom: 22px; }

.modal-desc { max-width: 60ch; color: rgba(244,240,232,0.75); font-size: 16.5px; margin-bottom: 50px; }

.modal-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.modal-gallery img {
  width: 100%; height: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.modal-gallery figure:first-child { grid-column: 1 / -1; }
.modal-gallery figure:first-child img { aspect-ratio: 16/9; }
.modal-gallery figure { margin: 0; }

/* ==========================================================================
   About
   ========================================================================== */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 90px);
  align-items: center;
}

.about-media {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
}
.about-media img { width: 100%; height: 100%; object-fit: cover; }

.about-tag {
  position: absolute;
  bottom: 20px; left: 20px;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 9px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.about-tag::before { content: ""; width: 6px; height: 6px; background: var(--color-accent); border-radius: 50%; }

.about-body h2 {
  font-size: clamp(30px, 4vw, 46px);
  margin-bottom: 26px;
}

.about-text { font-size: 16.5px; opacity: 0.7; max-width: 50ch; }
.about-text + .about-text { margin-top: 16px; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 46px;
  padding-top: 34px;
  border-top: 1px solid var(--color-line-on-paper);
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 44px);
  color: var(--color-accent);
  display: block;
}
.stat-num sup { font-size: 0.5em; top: -0.6em; }
.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.55;
  margin-top: 6px;
  display: block;
}

@media (max-width: 820px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Process
   ========================================================================== */

.process { background: var(--color-ink); color: var(--color-paper); }
.process .section-head p { color: var(--color-paper); opacity: 0.6; }
.process .eyebrow { color: var(--color-accent-on-ink); }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(244,240,232,0.16);
}

.process-step {
  padding: 34px 26px 34px 0;
  border-right: 1px solid rgba(244,240,232,0.16);
}
.process-step:last-child { border-right: none; padding-right: 0; }

.process-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-on-ink);
  margin-bottom: 22px;
  display: block;
}

.process-step h3 {
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--color-paper);
}

.process-step p { font-size: 14.5px; color: rgba(244,240,232,0.6); }

@media (max-width: 900px) {
  .process-grid { grid-template-columns: 1fr 1fr; }
  .process-step { border-right: 1px solid rgba(244,240,232,0.16); border-bottom: 1px solid rgba(244,240,232,0.16); padding: 30px 20px 30px 0; }
  .process-step:nth-child(2n) { border-right: none; }
}
@media (max-width: 560px) {
  .process-grid { grid-template-columns: 1fr; }
  .process-step { border-right: none !important; padding-right: 0; }
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(40px, 6vw, 100px);
}

.contact-info h2 { font-size: clamp(32px, 4.4vw, 52px); max-width: 12ch; margin-bottom: 30px; }
.contact-info > .about-text { margin-bottom: 40px; }

.contact-list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--color-line-on-paper); }
.contact-list li {
  display: flex;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line-on-paper);
  font-size: 15px;
}
.contact-list .c-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.5;
}
.contact-list a:hover { color: var(--color-accent); }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px 20px;
}
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }

.form-field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.55;
}

.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 15.5px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-line-on-paper);
  padding: 10px 2px;
  color: var(--color-ink);
  border-radius: 0;
  transition: border-color var(--dur) var(--ease);
}
.form-field textarea { resize: vertical; min-height: 90px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--color-stone); }

.form-submit { margin-top: 6px; display: flex; align-items: center; gap: 18px; }
.form-note { font-size: 12.5px; opacity: 0.5; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-ink);
  color: var(--color-paper);
  padding-top: clamp(60px, 8vw, 100px);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(244,240,232,0.14);
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.06em;
}
.footer-logo span { color: var(--color-accent-on-ink); }
.footer-tag { margin-top: 16px; font-size: 14.5px; color: rgba(244,240,232,0.55); max-width: 30ch; }

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  color: rgba(244,240,232,0.45);
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: 14.5px; color: rgba(244,240,232,0.78); transition: color var(--dur) var(--ease); }
.footer-col a:hover { color: var(--color-accent-on-ink); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 26px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: rgba(244,240,232,0.4);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a:hover { color: rgba(244,240,232,0.75); }
.footer-legal { display: flex; gap: 22px; }

@media (max-width: 820px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Scroll progress "level line" — elemento de firma visual
   ========================================================================== */

.level-line {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 160px;
  background: rgba(21,20,15,0.12);
  z-index: 80;
  display: none;
}
.level-line-fill {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0%;
  background: var(--color-accent);
  transition: height 0.1s linear;
}
.level-line-mark {
  position: absolute;
  right: 10px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-ink);
  opacity: 0.4;
  white-space: nowrap;
}
@media (min-width: 1100px) { .level-line { display: block; } }