/* ==========================================================================
   Salgado Vásconez — prototype stylesheet (v2, monograph redesign)
   Design language: European architecture monograph. Herzog & de Meuron
   restraint, BIG confidence. Near-monochrome: warm paper, ink typography,
   one muted-brass accent used sparingly. Typography is the hero.
   Design references: BIG · HdM · UNStudio · Olson Kundig · Coulon.
   ========================================================================== */

:root {
  --paper: #F5F2EC;
  --paper-2: #EFEBE2;
  --ink: #161412;
  --ink-soft: #3A3733;
  --muted: #6F6A62;
  --line: #DCD7CE;
  --brass: #8A6F4D;        /* the single accent — use sparingly */
  --brass-dark: #6F5838;
  --font-sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", monospace;
  --maxw: 1280px;
  --pad: clamp(1.25rem, 4.5vw, 4rem);
  /* Duotone overlay applied over every photograph */
  --duotone: linear-gradient(180deg, rgba(22,20,18,0.18) 0%, rgba(22,20,18,0.08) 45%, rgba(22,20,18,0.42) 100%);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.02em; }

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }

/* Photograph treatment: subtle dark duotone, desaturated toward ink */
.photo-frame { position: relative; overflow: hidden; background: var(--paper-2); }
.photo-frame img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.85) contrast(1.07) brightness(0.95) sepia(0.14);
}
.photo-frame::after { content: ""; position: absolute; inset: 0; background: var(--duotone); pointer-events: none; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--paper); padding: 0.6rem 1rem;
}
.skip-link:focus { left: 0; }

/* ============ Header ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 2rem;
  padding: 1rem var(--pad);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 0.9rem; margin-right: auto; color: var(--ink); }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-name { display: flex; flex-direction: column; }
.wm-name {
  /* Typographic logo: wide letterspacing, monograph register.
     Lockup refinement: mark height ≈ 2× wordmark cap height, gap tuned
     to one channel-width of the mark for internal consistency. */
  font-weight: 600; letter-spacing: 0.32em; text-transform: uppercase;
  font-size: 0.82rem; white-space: nowrap; color: var(--ink); line-height: 1.15;
}
.wm-desc {
  /* Descriptor line: ~35% of name size, tracked out so its width optically
     matches the name above (letter-spacing tuned by measurement).
     Slightly muted ink; stays Spanish in all languages. */
  font-weight: 500; font-size: 0.5rem; letter-spacing: 1.82em;
  text-transform: uppercase; color: var(--muted);
  white-space: nowrap; margin-top: 3px; line-height: 1;
}

.main-nav { display: flex; gap: 2rem; align-items: center; }
.main-nav a {
  font-size: 0.78rem; font-weight: 500; text-transform: uppercase;
  letter-spacing: 0.14em; padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.main-nav a:hover { border-bottom-color: var(--ink); }
.nav-cta {
  border: 1px solid var(--ink) !important; padding: 0.5rem 1.2rem !important;
  transition: background 0.2s, color 0.2s;
}
.nav-cta:hover { background: var(--ink); color: var(--paper); border-bottom-color: transparent !important; }

.lang-switch { display: flex; border: 1px solid var(--line); overflow: hidden; }
.lang-switch button {
  font-family: var(--font-mono); font-size: 0.7rem; padding: 0.45rem 0.65rem;
  color: var(--muted); transition: background 0.15s, color 0.15s;
}
.lang-switch button + button { border-left: 1px solid var(--line); }
.lang-switch button:hover { color: var(--ink); }
.lang-switch button.active { background: var(--ink); color: var(--paper); }

.menu-toggle { display: none; flex-direction: column; gap: 6px; padding: 0.5rem; }
.menu-toggle span { width: 24px; height: 1.5px; background: var(--ink); }

/* ============ Hero — typography is the hero ============ */
.hero {
  padding: clamp(4rem, 10vw, 8.5rem) var(--pad) clamp(3rem, 6vw, 5rem);
  max-width: calc(var(--maxw) + 2 * var(--pad)); margin: 0 auto;
}
.kicker {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--brass-dark);
  text-transform: uppercase; letter-spacing: 0.22em; margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}
.hero-title {
  /* Oversized display wordmark at BIG/HdM scale */
  font-size: clamp(3rem, 12.5vw, 10.5rem);
  font-weight: 800; line-height: 0.94; letter-spacing: 0.005em;
  text-transform: uppercase; color: var(--ink);
}
.hero-title em { font-style: normal; font-weight: 300; letter-spacing: 0.01em; }
.hero-wm-desc {
  /* Hero lockup descriptor: light weight at ~1/3 the name's scale,
     tracked to match the width of "VÁSCONEZ" above. Tight-but-not-touching
     vertical gap (monograph rigor). */
  font-weight: 300; text-transform: uppercase; color: var(--ink-soft);
  font-size: clamp(0.95rem, 3.9vw, 3.3rem); letter-spacing: 1.08em;
  line-height: 1; margin-top: clamp(0.5rem, 1.2vw, 1.1rem); white-space: nowrap;
}
.hero-rule { border: none; border-top: 2px solid var(--ink); margin: clamp(1.4rem, 3.2vw, 2.4rem) 0 clamp(1.8rem, 4vw, 3rem); }
.hero-row { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.hero-lede {
  font-size: clamp(1.1rem, 2vw, 1.45rem); line-height: 1.5;
  max-width: 30em; color: var(--ink-soft); font-weight: 400;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: flex-end; }

.btn {
  display: inline-block; padding: 0.9rem 2rem;
  font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-solid { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); }
.btn-solid:hover { background: var(--brass-dark); border-color: var(--brass-dark); }
.btn-ghost { border: 1px solid var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

.hero-strip {
  display: flex; gap: 1.2rem; flex-wrap: wrap;
  margin-top: clamp(2rem, 4vw, 3rem); color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.16em;
}

/* Full-bleed photo band under the hero */
.hero-photo { position: relative; }
.hero-photo .photo-frame { aspect-ratio: 21 / 9; min-height: 320px; }
.hero-photo figcaption {
  position: absolute; left: var(--pad); bottom: 1.2rem; z-index: 2;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--paper);
}

/* ============ Sections ============ */
.section { padding: clamp(5rem, 12vw, 10rem) var(--pad); max-width: calc(var(--maxw) + 2 * var(--pad)); margin: 0 auto; }
.section-head { margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.section-no { display: block; color: var(--brass-dark); margin-bottom: 0.8rem; letter-spacing: 0.2em; }
.section-head h2 {
  font-size: clamp(2.6rem, 7vw, 5.2rem); font-weight: 800;
  text-transform: uppercase; letter-spacing: -0.005em; line-height: 0.98;
}
.section-lede { margin-top: 1.4rem; font-size: 1.12rem; color: var(--ink-soft); max-width: 44em; }

/* ============ Services — hairline rules, no boxes ============ */
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 4vw, 3.5rem) clamp(2rem, 4vw, 4rem); }
.service-card {
  border-top: 2px solid var(--ink);
  padding-top: 1.6rem;
  display: flex; flex-direction: column; gap: 1rem; position: relative;
}
.service-card.featured {
  background: var(--ink); color: var(--paper); border-top-color: var(--ink);
  padding: 1.6rem clamp(1.4rem, 3vw, 2.2rem) clamp(1.4rem, 3vw, 2rem);
}
.service-card.featured .svc-no { color: var(--brass); }
.service-card.featured .svc-for { color: color-mix(in srgb, var(--paper) 62%, transparent); }
.svc-badge {
  position: absolute; top: 1.6rem; right: clamp(1.4rem, 3vw, 2.2rem);
  font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.14em;
  border: 1px solid var(--brass); color: var(--brass); padding: 0.3rem 0.7rem;
}
.svc-no { font-family: var(--font-mono); font-size: 0.76rem; color: var(--brass-dark); letter-spacing: 0.14em; }
.service-card h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 700; text-transform: uppercase; letter-spacing: 0.01em; line-height: 1.1; }
.svc-desc { opacity: 0.92; }
.svc-list { list-style: none; display: grid; gap: 0.45rem; margin-top: 0.2rem; }
.svc-list li { padding-left: 1.4rem; position: relative; font-size: 0.95rem; }
.svc-list li::before { content: "—"; position: absolute; left: 0; opacity: 0.45; }
.svc-for { margin-top: auto; font-family: var(--font-mono); font-size: 0.76rem; color: var(--muted); padding-top: 0.9rem; border-top: 1px solid color-mix(in srgb, currentColor 16%, transparent); }

/* ============ Projects ============ */
.filter-row { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: clamp(2rem, 4vw, 3rem); }
.chip {
  font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em;
  border: 1px solid var(--line); padding: 0.5rem 1.1rem;
  color: var(--muted); transition: all 0.15s;
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 3vw, 2.5rem); }
.project-card { text-align: left; display: flex; flex-direction: column; }
.project-card .card-art { display: block; }
.card-art { aspect-ratio: 4 / 3; }
.card-art img { transition: transform 0.5s ease; }
.project-card:hover .card-art img { transform: scale(1.035); }
.card-status {
  position: absolute; top: 0.9rem; left: 0.9rem; z-index: 2;
  font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.1em;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  padding: 0.28rem 0.65rem; display: flex; align-items: center; gap: 0.4rem;
}
.status-dot { width: 6px; height: 6px; border-radius: 50%; }
.st-completado .status-dot { background: var(--ink); }
.st-construccion .status-dot { background: var(--brass); }
.st-diseno .status-dot { background: var(--muted); }
.st-idea .status-dot { background: transparent; box-shadow: inset 0 0 0 1.5px var(--muted); }

.card-body {
  padding: 1.1rem 0 1.4rem; display: flex; gap: 0.9rem; align-items: flex-start;
  border-bottom: 1px solid var(--line);
}
.card-icon { width: 34px; height: 34px; flex: none; color: var(--muted); }
.card-icon svg { width: 100%; height: 100%; }
.card-title { font-size: 1.2rem; font-weight: 700; text-transform: uppercase; line-height: 1.15; letter-spacing: 0.02em; display: block; }
.project-card:hover .card-title { color: var(--brass-dark); }
.card-loc { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); margin-top: 0.3rem; display: block; }
.card-tag { font-family: var(--font-mono); font-size: 0.66rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; margin-top: 0.45rem; display: block; }

/* ============ Studio ============ */
.studio-cols { display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.studio-lead { font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 500; line-height: 1.35; margin-bottom: 1.6rem; letter-spacing: -0.005em; }
.studio-text p + p { margin-top: 1rem; color: var(--ink-soft); max-width: 58ch; }
.studio-facts { border-top: 2px solid var(--ink); }
.studio-facts div { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.studio-facts dt { color: var(--muted); text-transform: uppercase; font-size: 0.7rem; letter-spacing: 0.14em; }
.studio-facts dd { text-align: right; font-size: 0.8rem; }

/* ============ Contact ============ */
.contact-cols { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.field { margin-bottom: 1.4rem; }
.field label {
  display: block; font-family: var(--font-mono); font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); margin-bottom: 0.5rem;
}
.field input, .field select, .field textarea {
  width: 100%; padding: 0.9rem 1rem; font: inherit; font-size: 0.98rem;
  background: transparent; border: 1px solid var(--line);
  color: var(--ink); transition: border-color 0.15s;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--ink);
}
.form-error { color: #8C3B2E; margin-bottom: 1rem; }
.form-success {
  margin-top: 1.2rem; padding: 1rem 1.2rem; border-left: 2px solid var(--ink);
  background: var(--paper-2); font-size: 0.95rem;
}
.contact-info { border-top: 2px solid var(--ink); font-style: normal; }
.contact-info p { padding: 1rem 0; border-bottom: 1px solid var(--line); font-size: 0.82rem; line-height: 1.7; }
.ci-label { display: block; color: var(--muted); text-transform: uppercase; font-size: 0.66rem; letter-spacing: 0.14em; margin-bottom: 0.25rem; }
.contact-info a:hover { color: var(--brass-dark); }
.wa-link { display: inline-flex; align-items: center; gap: 0.5rem; }
.wa-link svg { width: 15px; height: 15px; flex: none; }

/* ============ Footer ============ */
.site-footer {
  background: var(--ink); color: var(--paper);
  padding: clamp(3rem, 7vw, 5rem) var(--pad);
  display: grid; grid-template-columns: 2fr 1fr 2fr; gap: 2rem; align-items: start;
}
.footer-mark { width: 34px; height: 34px; color: var(--paper); margin-bottom: 1rem; }
.footer-brand .wm-name { font-size: 0.9rem; color: var(--paper); }
.footer-brand .wm-desc { font-size: 0.55rem; color: color-mix(in srgb, var(--paper) 62%, transparent); letter-spacing: 1.82em; }
.footer-brand p { margin-top: 0.8rem; color: color-mix(in srgb, var(--paper) 58%, transparent); }
.footer-links { display: grid; gap: 0.55rem; }
.footer-links a { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.14em; color: color-mix(in srgb, var(--paper) 72%, transparent); }
.footer-links a:hover { color: var(--brass); }
.footer-meta { text-align: right; color: color-mix(in srgb, var(--paper) 52%, transparent); font-size: 0.74rem; display: grid; gap: 0.4rem; }
.proto-note, .imgs-note { color: color-mix(in srgb, var(--paper) 36%, transparent); }

/* ============ Modal — case study ============ */
.modal { position: fixed; inset: 0; z-index: 150; display: flex; align-items: center; justify-content: center; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(22,20,18,0.6); backdrop-filter: blur(3px); }
.modal-panel {
  position: relative; background: var(--paper);
  width: min(920px, calc(100vw - 2rem)); max-height: calc(100vh - 3rem);
  overflow-y: auto; box-shadow: 0 30px 80px rgba(0,0,0,0.4);
}
.modal-close {
  position: sticky; top: 0.9rem; margin-left: calc(100% - 3.4rem); z-index: 5;
  width: 2.5rem; height: 2.5rem; border-radius: 50%;
  background: var(--ink); color: var(--paper); font-size: 1.3rem; line-height: 1;
}
.modal-close:hover { background: var(--brass-dark); }

.cs-hero { aspect-ratio: 21 / 9; margin-top: -2.5rem; }
.cs-body { padding: clamp(1.6rem, 4vw, 3.2rem); }
.cs-title-row { display: flex; align-items: center; gap: 1.2rem; margin-bottom: 0.5rem; }
.cs-icon { width: 46px; height: 46px; flex: none; color: var(--muted); }
.cs-title { font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 800; text-transform: uppercase; line-height: 1; letter-spacing: 0.01em; }
.cs-loc { font-family: var(--font-mono); font-size: 0.82rem; color: var(--muted); }
.cs-year { font-family: var(--font-mono); font-size: 0.82rem; color: var(--brass-dark); margin-left: 0.8rem; }

.cs-meta {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  margin: 1.8rem 0 2.2rem; padding: 1.3rem 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line);
}
.cs-meta h4 { font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); font-weight: 500; margin-bottom: 0.35rem; }
.cs-meta p { font-size: 0.92rem; font-weight: 600; }

.cs-copy p { max-width: 62ch; margin-bottom: 1.1rem; color: var(--ink-soft); }
.cs-copy p:first-of-type { font-size: 1.15rem; color: var(--ink); }

.cs-diagram { margin: 2.2rem 0; padding: 1.5rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 0.75rem; }
.cs-diagram-label { font-family: var(--font-mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.18em; color: var(--brass-dark); }
.cs-step { font-size: 0.95rem; color: var(--ink-soft); }
.cs-step strong { color: var(--ink); text-transform: uppercase; font-size: 0.83rem; letter-spacing: 0.06em; }

.cs-quote { margin: 2.2rem 0; padding-left: 1.5rem; border-left: 2px solid var(--brass); }
.cs-quote p { font-size: 1.2rem; font-weight: 500; line-height: 1.45; }
.cs-quote cite { display: block; margin-top: 0.7rem; font-family: var(--font-mono); font-size: 0.74rem; font-style: normal; color: var(--muted); }

.cs-credits { margin-top: 2.2rem; font-family: var(--font-mono); font-size: 0.76rem; color: var(--muted); display: grid; gap: 0.3rem; }

/* ============ Reveal animation ============ */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ============ Responsive ============ */
@media (max-width: 980px) {
  .service-grid { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .studio-cols, .contact-cols { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-meta { text-align: left; }
  .cs-meta { grid-template-columns: repeat(2, 1fr); }
  .hero-row { grid-template-columns: 1fr; }
  .hero-actions { justify-content: flex-start; }
}

@media (max-width: 720px) {
  .main-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 0.5rem 0;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 0.9rem var(--pad); border-bottom: none; }
  .nav-cta { border: none !important; }
  .menu-toggle { display: flex; }
  .project-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  /* Mobile: the SV monogram carries the brand; wordmark hides */
  .brand-name { display: none; }
}