/* ============================================
   ATOM Arquitectura — Stylesheet
   ============================================ */

:root {
  --color-bg: #F7F4EC;
  --color-bg-alt: #EFEBDD;
  --color-text: #24231F;
  --color-text-soft: #55534B;
  --color-accent: #1E4D3B;
  --color-accent-light: #2F7D5E;
  --color-line: rgba(36, 35, 31, 0.12);

  --font-heading: 'Poppins', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Poppins', 'Helvetica Neue', Arial, sans-serif;

  --gutter: clamp(24px, 6vw, 96px);
  --section-pad: clamp(64px, 12vw, 160px);
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: 0.04em;
  margin: 0;
}

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

.section-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--section-pad) var(--gutter);
}

.section-eyebrow {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.72rem;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  text-transform: uppercase;
  margin-bottom: 48px;
}

/* ============ HEADER ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(247, 244, 236, 0.97);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.lang-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  order: 1;
}
.lang-sep { color: var(--color-line); }
.lang-option { opacity: 0.4; transition: opacity 0.2s; }
.lang-option.is-active { opacity: 1; color: var(--color-accent); }

.main-nav {
  order: 3;
  display: flex;
  gap: clamp(18px, 3vw, 40px);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.main-nav a { position: relative; padding-bottom: 4px; }
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--color-accent);
  transition: right 0.25s ease;
}
.main-nav a:hover::after { right: 0; }

.nav-home-link {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-mouth-icon {
  height: 20px;
  width: auto;
}

.menu-toggle {
  display: none;
  order: 4;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 20px;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
}
.menu-toggle span {
  display: block;
  height: 1px;
  background: var(--color-text);
  width: 100%;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px var(--gutter) 80px;
  background: var(--color-bg);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../assets/img/hero-bg.jpg');
  background-size: cover;
  background-position: center 35%;
  opacity: 0.85;
  mix-blend-mode: multiply;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 34%, rgba(247,244,236,0.32), rgba(247,244,236,0.62) 65%),
    linear-gradient(180deg, rgba(247,244,236,0.12), var(--color-bg) 94%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 820px;
  text-align: center;
}

.hero-logo {
  width: 100%;
  max-width: 720px;
  height: auto;
  margin: 0 auto 48px;
}

.hero-philosophy {
  max-width: 720px;
  margin: 0 auto;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--color-text-soft);
  font-weight: 300;
}
.hero-philosophy p { margin: 0 0 22px; }
.hero-philosophy p:last-child { margin-bottom: 0; }

.hero-scroll {
  display: inline-block;
  margin-top: 56px;
  font-family: var(--font-heading);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 4px;
}

/* ============ PROJECTS ============ */
.projects { background: var(--color-bg); }

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 3vw, 48px);
}

.project-card {
  display: block;
  cursor: pointer;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}

.project-media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--color-bg-alt);
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.project-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 15%;
  box-sizing: border-box;
  transition: transform 0.6s ease;
}
.project-card:hover .project-media img { transform: scale(1.06); }

.project-info {
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.project-info h3 {
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}
/* ============ PROJECT DETAIL PAGE ============ */
.project-content {
  padding-top: calc(var(--section-pad) + 40px);
}

.project-back {
  display: inline-block;
  font-family: var(--font-heading);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--color-accent);
  margin-bottom: 40px;
}

.project-detail-title {
  font-size: clamp(2rem, 4vw, 3rem);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.project-detail-desc {
  max-width: 640px;
  font-size: 1.05rem;
  margin: 0 0 18px;
}
.project-detail-desc:last-of-type { margin-bottom: 0; }

.project-detail-location {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-bottom: 18px;
}

.project-detail-quote {
  max-width: 640px;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-text-soft);
  border-left: 2px solid var(--color-accent);
  padding-left: 20px;
  margin: 0 0 18px;
}

.project-video {
  position: relative;
  width: 100%;
  max-width: 900px;
  aspect-ratio: 16 / 9;
  margin: 40px 0 0;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
}
.project-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.project-gallery {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--color-line);
}

.project-subheading {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0;
}

/* ============ PROJECT SLIDESHOW ============ */
.slideshow {
  position: relative;
  margin-top: 40px;
  max-width: 900px;
  background: #fff;
  border: 1px solid var(--color-line);
}
.slideshow-viewport {
  position: relative;
  height: clamp(320px, 55vw, 560px);
  overflow: hidden;
}
.slideshow-slide {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.slideshow-slide.is-active { display: flex; }
.slideshow-slide img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}
.slideshow-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-line);
  background: rgba(247, 244, 236, 0.92);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.slideshow-arrow:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.slideshow-arrow--prev { left: 16px; }
.slideshow-arrow--next { right: 16px; }
.slideshow-counter {
  padding: 14px 0;
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
}
.slideshow.is-single .slideshow-arrow,
.slideshow.is-single .slideshow-counter {
  display: none;
}

@media (max-width: 560px) {
  .slideshow-arrow { width: 32px; height: 32px; font-size: 1rem; }
}

/* ============ ABOUT ============ */
.about { background: var(--color-bg-alt); }
.about-inner { max-width: 760px; text-align: center; }

.about-photo {
  width: 160px;
  height: 160px;
  margin: -16px auto 24px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin: 0 0 10px;
}

.about-role {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 44px;
}

.about-quote-block {
  margin: 0;
  padding: 0;
  border: none;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-text);
}
.about-quote-block p { margin: 0 0 22px; }
.about-quote-block p:last-child { margin-bottom: 0; }

.about-copy {
  margin: 44px 0 0;
  padding-top: 32px;
  border-top: 1px solid var(--color-line);
  text-align: left;
}
.about-copy p {
  margin: 0 0 20px;
  font-size: 0.98rem;
  color: var(--color-text-soft);
}
.about-copy p:last-child { margin-bottom: 0; }

.about-why {
  margin: 44px 0 0;
  padding-top: 32px;
  border-top: 1px solid var(--color-line);
  text-align: left;
}
.about-why-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}
.about-why p {
  margin: 0 0 20px;
  font-size: 0.98rem;
  color: var(--color-text-soft);
}
.about-why p:last-child { margin-bottom: 0; }

.placeholder-copy {
  color: var(--color-text-soft);
  font-size: 1.05rem;
}

/* ============ SERVICES ============ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 3vw, 40px);
}
.service-item {
  border-top: 1px solid var(--color-line);
  padding-top: 22px;
}
.service-num {
  display: block;
  font-family: var(--font-heading);
  color: var(--color-accent);
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.service-item h3 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}
.service-item p {
  font-size: 0.92rem;
  color: var(--color-text-soft);
  margin: 0;
}

/* ============ CONTACT ============ */
.contact { background: var(--color-bg); }
.contact-inner { text-align: center; }
.contact-lede {
  color: var(--color-text-soft);
  max-width: 480px;
  margin: 0 auto 56px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(32px, 5vw, 80px);
  text-align: left;
  max-width: 900px;
  margin: 0 auto;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 18px;
  justify-content: center;
}
.contact-link {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  border-bottom: 1px solid transparent;
  width: fit-content;
  transition: border-color 0.2s, color 0.2s;
}
.contact-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.contact-link--ig,
.contact-link--wa {
  display: flex;
  align-items: center;
  gap: 10px;
}
.ig-icon,
.wa-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  background: transparent;
  border: 1px solid var(--color-line);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.contact-form button {
  align-self: flex-start;
  margin-top: 8px;
  padding: 14px 32px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  font-family: var(--font-heading);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.2s;
}
.contact-form button:hover { background: var(--color-accent-light); }
.form-note {
  font-size: 0.72rem;
  color: var(--color-text-soft);
  margin: 4px 0 0;
}
.form-note--success { color: var(--color-accent); font-size: 0.85rem; }
.form-note--error { color: #b3261e; font-size: 0.85rem; }

/* ============ FOOTER ============ */
.site-footer {
  text-align: center;
  padding: 48px var(--gutter) 40px;
  border-top: 1px solid var(--color-line);
  background: var(--color-bg-alt);
}
.footer-logo {
  height: 26px;
  width: auto;
  margin: 0 auto 16px;
}
.site-footer p {
  font-size: 0.8rem;
  color: var(--color-text-soft);
  margin: 0;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .project-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }

  .main-nav {
    position: fixed;
    inset: 0;
    top: 68px;
    background: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    font-size: 1.1rem;
    transform: translateY(-110%);
    transition: transform 0.3s ease;
  }
  .main-nav.is-open { transform: translateY(0); }
  .menu-toggle { display: flex; order: 3; }
  .header-inner { justify-content: space-between; }
}

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