/* =========================================================
   SOLUVEX v3 — style.css
   Sticky-stack · B/W alternado · Inter únicamente · oro #C8A96E
   ========================================================= */

:root {
  --c-black:      #000000;
  --c-white:      #ffffff;
  --c-dark:       #111111;
  --c-dark-end:   #0a0a0a;
  --c-gold:       #C8A96E;
  --c-gold-hover: #b89355;
  --c-mute:       #666666;
  --c-mute-2:     #999999;
  --c-mute-3:     #bbbbbb;
  --c-line:       #222222;
  --c-line-light: #e0e0e0;
  --c-soft:       #f5f5f5;
  --c-warm:       #f9f6f0;

  --pad-x: 80px;
  --ease:  cubic-bezier(0.6, 0.01, 0.05, 0.95);
}

@media (max-width: 800px) {
  :root { --pad-x: 24px; }
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: auto;
  overflow-x: hidden;
}

body {
  background: var(--c-black);
  color: var(--c-white);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: transparent; border: 0; cursor: pointer; }
ul { list-style: none; }

::selection { background: var(--c-gold); color: var(--c-black); }

.skip-link {
  position: absolute; top: -40px; left: 1rem;
  background: var(--c-gold); color: var(--c-black);
  padding: .5rem 1rem; z-index: 9999;
  transition: top .2s ease;
}
.skip-link:focus { top: 1rem; }

/* ---------- Lenis ---------- */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

/* ---------- Reveal base ---------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
}
html.no-js .reveal { opacity: 1; transform: none; }

.word-wrap {
  display: inline-block;
  overflow: hidden;
  padding-bottom: 0.06em;
  vertical-align: bottom;
}
.word {
  display: inline-block;
  will-change: transform;
}
/* Only hide hero words pre-animation (they animate on page load).
   Contact words stay visible by default so content is safe even if ScrollTrigger
   misses firing due to scrub lag at panel edges. GSAP uses .from() to animate them in. */
.hero__title .word { opacity: 0; }
html.no-js .word,
html.no-js .hero__title .word { opacity: 1 !important; transform: none !important; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .hero__sub { opacity: 1; transform: none; }
  .word   { opacity: 1 !important; transform: none !important; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}

/* =========================================================
   SECTION SHELL (all sections in normal flow)
   Sticky-stack removed — kept .stack/.panel classes minimal for hero only.
   ========================================================= */
.stack {
  position: relative;
}

.panel {
  position: relative;
  width: 100%;
  min-height: 100vh;
  overflow: hidden;
}

/* =========================================================
   01 HERO
   ========================================================= */
.panel--hero { background: var(--c-black); }

.panel-hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  z-index: 0;
  background: var(--c-black);
}
.panel-hero__overlay {
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1; pointer-events: none;
}
.panel-hero__gradient {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0) 50%);
  z-index: 2; pointer-events: none;
}

/* Top-left: logo + lang toggle */
.panel-hero__top-left {
  position: absolute;
  top: 40px; left: 40px;
  display: flex; align-items: center;
  gap: 24px;
  z-index: 10;
}
.brand { display: inline-flex; align-items: center; height: 32px; }
.brand img { height: 100%; width: auto; }

.lang-toggle {
  display: inline-flex; align-items: center;
  gap: .25rem;
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  padding: .25rem 0;
}
.lang-toggle__opt { transition: color .3s var(--ease); }
.lang-toggle__opt.is-active { color: #fff; }
.lang-toggle__slash { opacity: .4; }

/* Top-right: WhatsApp icon */
.panel-hero__wa-top {
  position: absolute;
  top: 40px; right: 40px;
  color: var(--c-gold);
  z-index: 10;
  transition: transform .3s var(--ease);
}
.panel-hero__wa-top:hover { transform: scale(1.1); }

/* Bottom-left: headline + subline */
.panel-hero__content {
  position: absolute;
  left: 60px; right: 60px; bottom: 60px;
  z-index: 5;
}
.hero__title {
  font-family: inherit;
  font-weight: 900;
  font-size: 7.5vw;
  line-height: 0.95;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  color: var(--c-white);
}
.hero__title .t-line { display: block; }
.hero__sub {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.35em;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
  margin-top: 32px;
  white-space: pre-wrap;
  opacity: 0;
}
html.no-js .hero__sub { opacity: 1 !important; }

/* Fixed section-nav (persistent across all panels, above WA float) */
.section-nav {
  position: fixed;
  right: 24px;
  bottom: 88px; /* WA float 24 + 52 + 12 gap */
  z-index: 95;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.nav-arrow {
  width: 44px; height: 44px;
  border: 1px solid var(--c-gold);
  color: var(--c-gold);
  background: transparent;
  font-size: 16px;
  font-weight: 400;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .3s var(--ease), color .3s var(--ease), opacity .3s var(--ease), transform .3s var(--ease);
}
.nav-arrow:hover:not([disabled]) {
  background: var(--c-gold);
  color: var(--c-black);
}
.nav-arrow[disabled] { opacity: 0.3; cursor: not-allowed; }

@media (max-width: 800px) {
  .panel-hero__top-left { top: 24px; left: 24px; gap: 16px; }
  .panel-hero__wa-top { top: 24px; right: 24px; }
  .panel-hero__content { left: 24px; right: 24px; bottom: 100px; }
  .hero__title { font-size: 13vw; }
  .section-nav { right: 18px; bottom: 78px; gap: 6px; }
  .nav-arrow { width: 40px; height: 40px; font-size: 14px; }
}

/* =========================================================
   02 WORK (normal flow)
   ========================================================= */
.work {
  position: relative;
  min-height: 100vh;
  background: #ffffff;
  color: var(--c-black);
  padding: 140px var(--pad-x);
  overflow-x: hidden;
}
.work__inner {
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.panel-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--c-mute-2);
}

.work-list {
  border-top: 1px solid var(--c-line-light);
}
.work-list li {
  border-bottom: 1px solid var(--c-line-light);
  position: relative;
  overflow: hidden;
}
.work-list li::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: var(--c-black);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .9s var(--ease);
}
.work-list li.is-inview::before { transform: scaleX(1); }

.work-row {
  display: grid;
  grid-template-columns: 40px 1fr 280px 80px 40px;
  gap: 24px;
  align-items: center;
  padding: 36px 0;
  transition: background-color .4s var(--ease);
}
.work-row:hover {
  background: var(--c-soft);
}

.work-row__num {
  font-size: 12px;
  font-weight: 500;
  color: var(--c-mute-3);
  letter-spacing: .05em;
  font-variant-numeric: tabular-nums;
}
.work-row__name {
  font-size: clamp(22px, 2.8vw, 36px);
  font-weight: 700;
  color: var(--c-black);
  letter-spacing: -0.015em;
  line-height: 1.1;
}
.work-row__tag {
  font-size: 14px;
  font-weight: 400;
  color: var(--c-mute-2);
}
.work-row__year {
  font-size: 12px;
  font-weight: 500;
  color: var(--c-mute-3);
  letter-spacing: .05em;
  text-align: right;
}
.work-row__arrow {
  font-size: 20px;
  color: var(--c-gold);
  text-align: center;
  display: inline-block;
  transition: transform .4s var(--ease);
}
.work-row:hover .work-row__arrow {
  transform: scale(1.2);
}

.work-more {
  font-size: 13px;
  color: var(--c-mute-3);
  font-weight: 400;
}

@media (max-width: 900px) {
  .work-row {
    grid-template-columns: 32px 1fr 32px;
    grid-template-rows: auto auto;
    gap: 4px 16px;
    padding: 24px 0;
  }
  .work-row__num { grid-row: 1; grid-column: 1; }
  .work-row__name { grid-row: 1; grid-column: 2; font-size: clamp(20px, 6vw, 28px); }
  .work-row__arrow { grid-row: 1; grid-column: 3; text-align: right; }
  .work-row__tag { grid-row: 2; grid-column: 2; font-size: 13px; }
  .work-row__year { display: none; }
}

@media (max-width: 768px) {
  .work {
    min-height: auto;
    padding-bottom: 60px;
  }
}

/* =========================================================
   03 SERVICES (two full-viewport panels)
   ========================================================= */
.services { background: #0a0a0a; }

.service-panel {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px var(--pad-x);
  border-top: 1px solid #1a1a1a;
  overflow: hidden;
}

.service-panel__inner {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.service-num {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: #C8A96E;
  text-transform: uppercase;
}

.service-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(32px, 6vw, 100px);
  font-weight: 900;
  color: #ffffff;
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
}

.service-desc {
  font-family: 'Inter', sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: #666;
  max-width: 520px;
  line-height: 1.6;
}

.service-marquee {
  overflow: hidden;
  width: 100%;
  border-top: 1px solid #1a1a1a;
  border-bottom: 1px solid #1a1a1a;
  padding: 14px 0;
}

.service-marquee__track {
  display: flex;
  white-space: nowrap;
  gap: 0;
}

.service-marquee__track span {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: #333;
  text-transform: uppercase;
  padding-right: 40px;
  flex-shrink: 0;
}

.service-cta {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #555;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-transform: uppercase;
  align-self: flex-start;
  transition: color 0.3s ease;
}

.service-cta:hover { color: #C8A96E; }

@media (max-width: 768px) {
  .service-panel {
    padding: 80px 24px;
    min-height: auto;
    align-items: center;
    justify-content: flex-start;
    overflow-x: hidden;
  }
  .service-panel__inner {
    max-width: 100%;
    width: 100%;
  }
  .service-title {
    white-space: normal;
    font-size: clamp(28px, 8vw, 60px);
    word-break: break-word;
  }
  .service-desc { font-size: 16px; }
}

/* =========================================================
   04 ABOUT (normal flow)
   ========================================================= */
.about {
  position: relative;
  min-height: 100vh;
  background: var(--c-black);
  color: #ccc;
  padding: 140px var(--pad-x);
  display: flex;
  align-items: center;
}
.about__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 480px) auto;
  gap: 80px;
  align-items: center;
  width: 100%;
}

.about__text {
  display: flex;
  flex-direction: column;
  max-width: 480px;
}
.about__p {
  font-size: 18px;
  line-height: 1.8;
  color: #ccc;
  font-weight: 400;
  max-width: 480px;
  margin-bottom: 24px;
}
.about__p:last-of-type { margin-bottom: 0; }

.about__credit {
  margin-top: 40px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: #555;
}

.about__figure {
  width: 440px;
  max-width: 100%;
  overflow: hidden;
  justify-self: end;
}
.about__figure img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: grayscale(100%);
}

@media (max-width: 768px) {
  .about {
    padding: 80px 24px;
    min-height: auto;
    overflow-x: hidden;
  }
  .about__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about__figure {
    order: 1;
    width: 100%;
    max-width: 280px;
    justify-self: center;
    margin: 0 auto;
    display: block;
  }
  .about__text {
    order: 2;
    max-width: 100%;
  }
  .about__p {
    font-size: 16px;
    line-height: 1.7;
    max-width: 100%;
  }
  .about__credit {
    margin-top: 32px;
    font-size: 11px;
  }
}

/* =========================================================
   04 CONTACT (outside sticky-stack, normal flow)
   ========================================================= */
.contact {
  position: relative;
  min-height: 100vh;
  background: #ffffff;
  color: var(--c-black);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px var(--pad-x);
}
.contact__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
  text-align: center;
  max-width: 1200px;
}

.contact__title {
  font-family: inherit;
  font-weight: 900;
  font-size: 6.5vw;
  line-height: 0.95;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  color: var(--c-black);
  max-width: 15ch;
}
.contact__title .t-line { display: block; }

.contact__actions {
  display: flex; flex-direction: column;
  align-items: center;
  gap: 24px;
}

.btn-gold {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  padding: 18px 48px;
  background: var(--c-gold);
  color: var(--c-black);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  border: none;
  outline: none;
  border-radius: 2px;
  box-shadow: 0 0 0 0 rgba(200, 169, 110, 0.4);
  transition: background-color .3s var(--ease);
  animation: gold-pulse 2s var(--ease) infinite;
  -webkit-tap-highlight-color: transparent;
  -webkit-appearance: none;
  appearance: none;
}
.btn-gold:hover {
  background: var(--c-gold-hover);
  animation-play-state: paused;
}
@keyframes gold-pulse {
  0%   { box-shadow: 0 0 0 0   rgba(200, 169, 110, 0.40); }
  100% { box-shadow: 0 0 0 14px rgba(200, 169, 110, 0.00); }
}

.contact__email {
  font-size: 13px;
  color: var(--c-mute-2);
  transition: color .3s var(--ease);
}
.contact__email:hover { color: var(--c-black); }

@media (max-width: 768px) {
  .contact {
    padding: 80px 24px;
    min-height: auto;
    overflow-x: hidden;
  }
  .contact__title {
    font-size: clamp(36px, 10vw, 72px);
    word-break: break-word;
    max-width: 100%;
    white-space: normal;
  }
  .btn-gold {
    padding: 16px 32px;
    font-size: 12px;
    letter-spacing: .18em;
  }
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  position: relative;
  z-index: 20;
  background: var(--c-black);
  padding: 32px var(--pad-x);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer__copy,
.footer__legal a {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #444;
}
.footer__legal {
  display: flex;
  gap: 24px;
}
.footer__legal a { transition: color .3s var(--ease); }
.footer__legal a:hover { color: #888; }

@media (max-width: 560px) {
  .footer { justify-content: center; text-align: center; }
  .footer__legal { gap: 16px; }
  .footer__legal a { font-size: 10px; }
}

/* =========================================================
   WHATSAPP FLOAT
   ========================================================= */
.wa-float {
  position: fixed;
  right: 24px; bottom: 24px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--c-gold);
  color: var(--c-black);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  z-index: 100;
  opacity: 0;
  transform: translateY(12px) scale(0.9);
  transition: opacity .5s var(--ease), transform .3s var(--ease);
}
.wa-float.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.wa-float:hover { transform: scale(1.05); }
.wa-float svg { width: 26px; height: 26px; }

@media (max-width: 560px) {
  .wa-float { right: 18px; bottom: 18px; width: 48px; height: 48px; }
  .wa-float svg { width: 24px; height: 24px; }
}