/* ============================================
   RON ARQUITECTO — Design Tokens
   ============================================ */
:root {
  --ron-blue-deep: #1A3A6E;
  --ron-blue-deeper: #122A50;
  --ron-blue: #25509E;
  --ron-orange: #EE7C1A;
  --ron-orange-dim: #C96712;
  --ron-ink: #15203A;
  --ron-paper: #F7F6F3;
  --ron-paper-warm: #F1EEE7;
  --ron-line: #D8D4CC;
  --ron-line-dark: rgba(255,255,255,0.16);
  --ron-white: #FFFFFF;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

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

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ron-ink);
  background: var(--ron-paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--ron-orange); color: var(--ron-white); }

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  margin: 0;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ron-orange);
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--ron-orange);
  display: block;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.lede {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--ron-ink);
  opacity: 0.82;
  max-width: 62ch;
}

/* ============================================
   Signature motif — window-cross mark
   ============================================ */
.ron-mark {
  display: inline-block;
  width: 1em;
  height: 1em;
  position: relative;
  border: 0.09em solid currentColor;
  vertical-align: -0.12em;
}
.ron-mark::before,
.ron-mark::after {
  content: '';
  position: absolute;
  background: currentColor;
}
.ron-mark::before { /* vertical bar */
  left: 50%;
  top: 0;
  bottom: 0;
  width: 0.09em;
  transform: translateX(-50%);
}
.ron-mark::after { /* horizontal bar */
  top: 50%;
  left: 0;
  right: 0;
  height: 0.09em;
  transform: translateY(-50%);
}
.ron-mark--round {
  border-radius: 50%;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--gutter);
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(247, 246, 243, 0.92);
  backdrop-filter: blur(10px);
  padding-top: 14px;
  padding-bottom: 14px;
  box-shadow: 0 1px 0 var(--ron-line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--ron-white);
  letter-spacing: 0.01em;
  transition: color 0.4s var(--ease);
}

.site-header.is-scrolled .brand { color: var(--ron-ink); }

.brand .ron-mark {
  color: var(--ron-orange);
  font-size: 1.3rem;
}

.brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  font-weight: 400;
  text-transform: uppercase;
  opacity: 0.7;
  margin-top: 2px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 38px;
}

.nav-desktop a {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--ron-white);
  position: relative;
  padding: 4px 0;
  transition: color 0.4s var(--ease);
}

.site-header.is-scrolled .nav-desktop a { color: var(--ron-ink); }

.nav-desktop a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1.5px;
  background: var(--ron-orange);
  transition: width 0.3s var(--ease);
}
.nav-desktop a:hover::after { width: 100%; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ron-orange);
  color: var(--ron-white) !important;
  padding: 10px 18px;
  border-radius: 2px;
  font-weight: 600;
  font-size: 0.82rem;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}
.nav-cta:hover { background: var(--ron-orange-dim); transform: translateY(-1px); }
.nav-cta::after { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ron-white);
  transition: all 0.3s var(--ease);
}
.site-header.is-scrolled .nav-toggle span { background: var(--ron-ink); }
.nav-toggle.is-open span { background: var(--ron-ink); }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  background: var(--ron-blue-deeper);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(180deg, rgba(18,42,80,0.55) 0%, rgba(18,42,80,0.55) 40%, rgba(13,28,56,0.94) 100%),
    url('../img/hero/buildings-hero.jpg');
  background-size: cover;
  background-position: center 30%;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-bottom: clamp(56px, 8vw, 96px);
  padding-top: 160px;
  color: var(--ron-white);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ron-orange);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: '';
  width: 22px; height: 1px;
  background: var(--ron-orange);
}

.hero h1 {
  font-size: clamp(2.6rem, 6.5vw, 5.4rem);
  color: var(--ron-white);
  max-width: 14ch;
}

.hero h1 em {
  font-style: italic;
  color: var(--ron-orange);
}

.hero-sub {
  margin-top: 26px;
  max-width: 46ch;
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: rgba(255,255,255,0.78);
  line-height: 1.6;
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 22px;
  align-items: flex-end;
  text-align: right;
  padding-bottom: 6px;
}

.hero-stat {
  font-family: var(--font-mono);
}
.hero-stat .num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--ron-white);
  line-height: 1;
  display: block;
}
.hero-stat .label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  display: block;
  margin-top: 6px;
}

.hero-scroll-cue {
  position: absolute;
  bottom: 28px;
  left: var(--gutter);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.6);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero-scroll-cue .line {
  width: 36px;
  height: 1px;
  background: rgba(255,255,255,0.4);
  position: relative;
  overflow: hidden;
}
.hero-scroll-cue .line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--ron-orange);
  animation: scrollline 2.2s var(--ease) infinite;
}
@keyframes scrollline {
  0% { transform: translateX(-100%); }
  50% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

@media (max-width: 760px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-meta { flex-direction: row; align-items: flex-start; text-align: left; gap: 32px; flex-wrap: wrap; padding-right: 70px; }
}

/* ============================================
   Section scaffolding
   ============================================ */
section { position: relative; }

.section-pad { padding: clamp(72px, 10vw, 128px) 0; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: clamp(40px, 6vw, 72px);
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  max-width: 16ch;
}

.section-head .lede { margin-top: 14px; }

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ron-blue);
  white-space: nowrap;
  padding-bottom: 6px;
}

.divider {
  height: 1px;
  background: var(--ron-line);
  border: 0;
  margin: 0;
}

/* ============================================
   Quiénes Somos
   ============================================ */
.about {
  background: var(--ron-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(40px, 6vw, 90px);
  align-items: start;
}

.about-text p {
  font-size: 1.05rem;
  color: var(--ron-ink);
  opacity: 0.85;
  line-height: 1.75;
}

.about-signature {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--ron-line);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--ron-blue-deep);
}
.about-signature span {
  display: block;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ron-ink);
  opacity: 0.55;
  margin-top: 6px;
}

.about-areas {
  display: grid;
  gap: 1px;
  background: var(--ron-line);
  border: 1px solid var(--ron-line);
}

.area-item {
  background: var(--ron-paper);
  padding: 22px 26px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.area-item .idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ron-orange);
  flex-shrink: 0;
}

.area-item .name {
  font-weight: 600;
  font-size: 1rem;
}

/* Team photos strip */
.team-strip {
  margin-top: clamp(48px, 6vw, 80px);
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 14px;
}

.team-strip figure {
  margin: 0;
  overflow: hidden;
  background: var(--ron-ink);
  position: relative;
}

.team-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
  transition: transform 0.6s var(--ease);
}
.team-strip figure:hover img { transform: scale(1.04); }

.team-collab {
  background: var(--ron-blue-deep);
  color: var(--ron-white);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}
.team-collab .eyebrow { color: rgba(255,255,255,0.55); margin-bottom: 4px; }
.team-collab .eyebrow::before { background: rgba(255,255,255,0.55); }

.collab-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 0.86rem;
}
.collab-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--ron-line-dark);
  padding-bottom: 9px;
}
.collab-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.collab-list .role {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.collab-list .who { font-weight: 500; text-align: right; }

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .team-strip { grid-template-columns: 1fr 1fr; }
  .team-collab { grid-column: span 2; }
}
@media (max-width: 540px) {
  .team-strip { grid-template-columns: 1fr; }
  .team-collab { grid-column: span 1; }
}

/* ============================================
   Portfolio — asymmetric gallery
   ============================================ */
.portfolio { background: var(--ron-paper-warm); }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.proj-card {
  position: relative;
  overflow: hidden;
  background: var(--ron-ink);
  display: block;
  color: var(--ron-white);
  grid-column: span 3;
  aspect-ratio: 4/3;
}

.proj-card.featured {
  grid-column: span 4;
  aspect-ratio: 16/11;
}
.proj-card.tall {
  grid-column: span 2;
  aspect-ratio: 3/4;
}

.proj-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease), filter 0.5s var(--ease);
}

.proj-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,22,42,0) 30%, rgba(15,22,42,0.55) 62%, rgba(10,15,30,0.97) 100%);
  z-index: 1;
  transition: opacity 0.4s var(--ease);
}

.proj-card.featured::before {
  background: linear-gradient(180deg, rgba(15,22,42,0) 22%, rgba(15,22,42,0.6) 55%, rgba(8,12,26,0.98) 100%);
}

.proj-card:hover img { transform: scale(1.06); }

.proj-card-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: clamp(18px, 2.4vw, 30px);
}

.proj-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ron-orange);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 8px;
}

.proj-card h3 {
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  color: var(--ron-white);
  margin-bottom: 6px;
  line-height: 1.15;
  text-shadow: 0 2px 14px rgba(0,0,0,0.45);
}

.proj-loc {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
  display: flex;
  align-items: center;
  gap: 8px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}

.proj-loc::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--ron-orange);
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .proj-card, .proj-card.featured, .proj-card.tall {
    grid-column: span 6;
    aspect-ratio: 4/3;
  }
}

/* ============================================
   Project detail (modal/expand panel)
   ============================================ */
.proj-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  background: rgba(13, 20, 40, 0.88);
  backdrop-filter: blur(6px);
  overflow-y: auto;
  padding: clamp(16px, 4vw, 60px);
}
.proj-modal.is-open { display: block; }

.proj-modal-inner {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--ron-paper);
  position: relative;
}

.proj-modal-close {
  position: sticky;
  top: 16px;
  margin-left: auto;
  margin-right: 16px;
  margin-top: 16px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--ron-ink);
  color: var(--ron-white);
  border: 0;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  float: right;
}

.proj-modal-hero {
  width: 100%;
  aspect-ratio: 16/8;
  object-fit: cover;
}

.proj-modal-body {
  padding: clamp(28px, 5vw, 56px);
  padding-top: 8px;
}

.proj-modal-head {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--ron-line);
  margin-bottom: 32px;
}

.proj-modal-head h3 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 14px;
}

.proj-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 22px;
  font-size: 0.86rem;
  align-content: start;
}
.proj-facts dt {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ron-blue);
  margin: 0 0 3px;
}
.proj-facts dd {
  margin: 0;
  font-weight: 500;
}

.proj-modal-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.proj-modal-gallery img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  cursor: zoom-in;
  transition: opacity 0.3s var(--ease);
}
.proj-modal-gallery img:hover { opacity: 0.85; }

@media (max-width: 760px) {
  .proj-modal-head { grid-template-columns: 1fr; gap: 20px; }
  .proj-modal-gallery { grid-template-columns: 1fr 1fr; }
}

body.modal-lock { overflow: hidden; }

/* ============================================
   Habilitaciones Urbanas — data-forward section
   ============================================ */
.hu-section {
  background: var(--ron-blue-deeper);
  color: var(--ron-white);
}

.hu-section .section-head h2 { color: var(--ron-white); }
.hu-section .lede { color: rgba(255,255,255,0.7); opacity: 1; }
.hu-section .eyebrow { color: var(--ron-orange); }

.hu-list {
  display: flex;
  flex-direction: column;
}

.hu-row {
  display: grid;
  grid-template-columns: 0.5fr 1.6fr 1.8fr;
  gap: 24px;
  align-items: center;
  padding: 26px 0;
  border-top: 1px solid var(--ron-line-dark);
  cursor: pointer;
  transition: background 0.3s var(--ease);
}
.hu-list .hu-row:last-child { border-bottom: 1px solid var(--ron-line-dark); }
.hu-row:hover { background: rgba(255,255,255,0.04); }

.hu-row-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.hu-row-name h3 {
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  color: var(--ron-white);
  margin-bottom: 4px;
}
.hu-row-name .loc {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}

.hu-id {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ron-orange);
}

.hu-stat {
  font-family: var(--font-mono);
}
.hu-stat .num {
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  font-weight: 700;
  display: block;
  color: var(--ron-white);
}
.hu-stat .label {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.hu-expand {
  grid-column: 1 / -1;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease);
}
.hu-row.is-open + .hu-expand {
  max-height: 600px;
}
.hu-expand-inner {
  padding: 8px 0 32px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 28px;
  align-items: center;
}
.hu-expand img {
  width: 100%;
  border: 1px solid var(--ron-line-dark);
}
.hu-expand-text {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.7;
}
.hu-expand-text .design-credit {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: rgba(255,255,255,0.5);
}

.hu-totals {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--ron-line-dark);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.hu-total-item .num {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4vw, 3rem);
  color: var(--ron-orange);
  display: block;
  font-weight: 600;
}
.hu-total-item .label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-top: 8px;
  display: block;
}

@media (max-width: 860px) {
  .hu-row {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 24px 0;
  }
  .hu-id { font-size: 0.74rem; }
  .hu-row-stats {
    display: flex;
    gap: 28px;
  }
  .hu-expand-inner { grid-template-columns: 1fr; }
  .hu-totals { grid-template-columns: 1fr 1fr; }
}

/* ============================================
   Services
   ============================================ */
.services { background: var(--ron-white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--ron-line);
  border: 1px solid var(--ron-line);
}

.service-card {
  background: var(--ron-paper);
  padding: clamp(26px, 3vw, 36px) clamp(20px, 2.4vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 220px;
}

.service-mark {
  color: var(--ron-orange);
  font-size: 1.6rem;
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  font-family: var(--font-body);
}

.service-card p {
  font-size: 0.88rem;
  color: var(--ron-ink);
  opacity: 0.7;
  line-height: 1.6;
}

@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Contact / CTA
   ============================================ */
.contact {
  background: var(--ron-blue-deep);
  background-image: radial-gradient(circle at 85% 20%, rgba(238,124,26,0.15), transparent 55%);
  color: var(--ron-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(40px, 6vw, 90px);
  align-items: center;
}

.contact h2 {
  font-size: clamp(2.1rem, 4.5vw, 3.4rem);
  color: var(--ron-white);
  max-width: 14ch;
}

.contact .lede { color: rgba(255,255,255,0.72); opacity: 1; margin-top: 18px; }

.contact-actions {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 2px;
  transition: all 0.25s var(--ease);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--ron-orange);
  color: var(--ron-white);
}
.btn-primary:hover { background: var(--ron-orange-dim); transform: translateY(-2px); }

.btn-outline {
  border-color: rgba(255,255,255,0.35);
  color: var(--ron-white);
}
.btn-outline:hover { border-color: var(--ron-white); background: rgba(255,255,255,0.06); }

.contact-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  padding: clamp(28px, 3vw, 40px);
}

.contact-card .eyebrow { color: rgba(255,255,255,0.55); }
.contact-card .eyebrow::before { background: rgba(255,255,255,0.55); }

.contact-detail {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.contact-detail:last-child { border-bottom: 0; padding-bottom: 0; }
.contact-detail:first-of-type { padding-top: 0; }

.contact-detail .k {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.contact-detail .v {
  font-weight: 500;
  text-align: right;
}
.contact-detail .v a:hover { color: var(--ron-orange); }

@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--ron-blue-deeper);
  color: rgba(255,255,255,0.6);
  padding: 32px 0;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
.footer-brand .ron-mark { color: var(--ron-orange); }

/* ============================================
   WhatsApp floating button
   ============================================ */
.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
  transition: transform 0.3s var(--ease);
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 28px; height: 28px; fill: white; }

/* ============================================
   Reveal-on-scroll
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Mobile nav drawer
   ============================================ */
@media (max-width: 920px) {
  .nav-desktop {
    position: fixed;
    inset: 0;
    background: var(--ron-paper);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 0 var(--gutter);
    gap: 28px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    z-index: 105;
  }
  .nav-desktop.is-open { transform: translateX(0); }
  .nav-desktop a { color: var(--ron-ink) !important; font-size: 1.4rem; }
  .nav-toggle { display: flex; }
}

/* Utility */
.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;
}