/* ==========================================================================
   STAVORIS — shared stylesheet for / (English) and /es/ (Spanish)
   ========================================================================== */

:root {
  --bg: #EBEEF1;
  --surface: #FFFFFF;
  --surface-2: #F4F6F8;
  --ink: #0B1F33;
  --ink-soft: #35485B;
  --muted: #64717F;
  --line: #D2D9E0;
  --line-strong: #B9C3CD;
  --accent: #8A6534;
  --accent-soft: rgba(138, 101, 52, 0.10);
  --navy: #0B1F33;
  --navy-2: #0E2639;
  --on-navy: #E6ECF2;
  --on-navy-soft: #A9B8C6;
  --on-navy-line: rgba(230, 236, 242, 0.14);
  --focus: #C08A45;
  --maxw: 1180px;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0A141D;
    --surface: #10202D;
    --surface-2: #0D1A25;
    --ink: #E7EDF3;
    --ink-soft: #B6C2CE;
    --muted: #7E8C99;
    --line: #223140;
    --line-strong: #2E4152;
    --accent: #C7A067;
    --accent-soft: rgba(199, 160, 103, 0.12);
    --navy: #0C1E2E;
    --navy-2: #0F2536;
    --on-navy: #E7EDF3;
    --on-navy-soft: #97A6B4;
    --on-navy-line: rgba(231, 237, 243, 0.12);
    --focus: #C7A067;
  }
}

:root[data-theme="dark"] {
  --bg: #0A141D;
  --surface: #10202D;
  --surface-2: #0D1A25;
  --ink: #E7EDF3;
  --ink-soft: #B6C2CE;
  --muted: #7E8C99;
  --line: #223140;
  --line-strong: #2E4152;
  --accent: #C7A067;
  --accent-soft: rgba(199, 160, 103, 0.12);
  --navy: #0C1E2E;
  --navy-2: #0F2536;
  --on-navy: #E7EDF3;
  --on-navy-soft: #97A6B4;
  --on-navy-line: rgba(231, 237, 243, 0.12);
  --focus: #C7A067;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Libre Franklin", "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.012em;
  text-wrap: balance;
  margin: 0;
}

p { margin: 0; }
a { color: inherit; }

::selection { background: var(--accent); color: #fff; }

/* ---------- layout primitives ---------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.section {
  padding-top: clamp(4.5rem, 9vw, 8rem);
  padding-bottom: clamp(4.5rem, 9vw, 8rem);
}

.section-head {
  display: grid;
  gap: 1.25rem;
  max-width: 46rem;
  margin-bottom: clamp(2.75rem, 5vw, 4rem);
}

.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
  flex: none;
}

.section-title {
  font-size: clamp(1.9rem, 3.4vw, 2.75rem);
  line-height: 1.12;
}

.lede {
  font-size: clamp(1.075rem, 1.5vw, 1.2rem);
  line-height: 1.65;
  color: var(--ink-soft);
}

/* ---------- header ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1.5rem;
}
.wordmark {
  font-family: "Libre Franklin", sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.34em;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}
.nav-links {
  display: flex;
  gap: 2rem;
  margin-left: auto;
  list-style: none;
  padding: 0;
}
.nav-links a {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--ink); }

@media (max-width: 980px) {
  .nav-links { display: none; }
}

/* ---------- language switch ---------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: auto;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  flex: none;
}
.lang-switch a {
  text-decoration: none;
  color: var(--muted);
  padding-bottom: 2px;
  transition: color 0.2s ease;
}
.lang-switch a:hover { color: var(--ink); }
.lang-switch a[aria-current="true"] {
  color: var(--ink);
  font-weight: 500;
  border-bottom: 1px solid var(--accent);
}
.lang-switch .sep { color: var(--line-strong); }
/* when the full nav is visible, the nav list already pushed right — sit next to it */
@media (min-width: 981px) {
  .nav-links + .lang-switch { margin-left: 1.25rem; }
}
/* on narrow screens the header CTA crowds the language switch — the hero has its own */
@media (max-width: 560px) {
  .nav > .btn { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: "Libre Franklin", sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.8rem 1.5rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-primary:hover { background: transparent; color: var(--ink); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink); }
.btn-on-navy {
  background: var(--on-navy);
  color: var(--navy);
  border-color: var(--on-navy);
}
.btn-on-navy:hover { background: transparent; color: var(--on-navy); }
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.8rem; }

a:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* ---------- hero ---------- */
.hero {
  padding-top: clamp(3.5rem, 7vw, 6rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 1.5rem;
}
.hero-copy {
  margin-top: 1.75rem;
  display: grid;
  gap: 1rem;
  max-width: 34rem;
  color: var(--ink-soft);
}
.hero-cta {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}
.hero-fig {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 1.5rem 1.5rem 1.1rem;
}
.hero-fig svg { display: block; width: 100%; height: auto; }
.fig-caption {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-fig { order: 2; }
}

/* ---------- capabilities ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.cap {
  background: var(--surface);
  padding: clamp(1.75rem, 2.5vw, 2.5rem);
  display: grid;
  gap: 0.9rem;
  align-content: start;
  transition: background 0.2s ease;
}
.cap:hover { background: var(--surface-2); }
.cap h3 {
  font-size: 1.28rem;
  line-height: 1.25;
}
.cap p {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.62;
}
@media (max-width: 900px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .cap-grid { grid-template-columns: 1fr; }
}

/* ---------- principles ---------- */
.principles { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle {
  display: grid;
  grid-template-columns: 0.9fr 1.6fr;
  gap: clamp(1rem, 4vw, 4rem);
  padding: clamp(1.75rem, 3vw, 2.5rem) 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.principle:first-of-type { border-top: 1px solid var(--line-strong); }
.principle-name {
  display: flex;
  gap: 1rem;
  align-items: baseline;
}
.principle-num {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: var(--accent);
  padding-top: 0.4rem;
}
.principle h3 {
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  line-height: 1.2;
}
.principle p { color: var(--ink-soft); }
@media (max-width: 760px) {
  .principle { grid-template-columns: 1fr; gap: 0.75rem; }
}

/* ---------- approach ---------- */
.stages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.stage {
  background: var(--surface);
  padding: clamp(1.6rem, 2.4vw, 2.25rem);
  display: grid;
  gap: 0.85rem;
  align-content: start;
}
.stage-num {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.stage h3 { font-size: 1.35rem; }
.stage p { color: var(--muted); font-size: 0.95rem; line-height: 1.6; }
@media (max-width: 860px) {
  .stages { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .stages { grid-template-columns: 1fr; }
}

/* ---------- technology ---------- */
.tech-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.tech-note { color: var(--ink-soft); display: grid; gap: 1rem; }
.tech-note strong { color: var(--ink); font-weight: 600; }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.chip {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  border: 1px solid var(--line-strong);
  padding: 0.5rem 0.85rem;
  background: var(--surface);
}
@media (max-width: 780px) {
  .tech-grid { grid-template-columns: 1fr; }
}

/* ---------- who we work with ---------- */
.work {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}
.work h3 {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.work ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.work li {
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
  font-size: 1.05rem;
  color: var(--ink);
}
.work li:first-child { border-top: 1px solid var(--line-strong); }
.work-note {
  margin-top: 1.5rem;
  font-size: 0.92rem;
  color: var(--muted);
}
@media (max-width: 720px) {
  .work { grid-template-columns: 1fr; }
}

/* ---------- final cta ---------- */
.final {
  background: var(--navy);
  color: var(--on-navy);
}
.final .wrap {
  padding-top: clamp(4.5rem, 9vw, 7.5rem);
  padding-bottom: clamp(4.5rem, 9vw, 7.5rem);
  display: grid;
  gap: 1.75rem;
  max-width: 44rem;
}
.final h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  line-height: 1.14;
}
.final p { color: var(--on-navy-soft); font-size: 1.1rem; max-width: 34rem; }
.final .btn { margin-top: 0.5rem; justify-self: start; }

/* ---------- footer ---------- */
footer {
  background: var(--navy-2);
  color: var(--on-navy-soft);
  border-top: 1px solid var(--on-navy-line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-top: clamp(3.5rem, 6vw, 5rem);
  padding-bottom: 2.5rem;
}
.footer-brand .wordmark { color: var(--on-navy); display: inline-block; margin-bottom: 1.1rem; }
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
}
.footer-brand .brand-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-navy-soft);
  margin-top: 0.4rem;
}
.footer-col h4 {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-navy-soft);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.footer-col a {
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--on-navy);
  transition: color 0.2s ease;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--on-navy-line);
  padding: 1.5rem 0 2.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--on-navy-soft);
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

/* ---------- chart animation ---------- */
.chart-line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.chart-grid { stroke: var(--line); stroke-width: 1; }
.chart-band { fill: var(--accent-soft); }
.chart-band-edge { stroke: var(--accent); stroke-width: 1; stroke-dasharray: 3 3; fill: none; opacity: 0.55; }
.chart-dot { fill: var(--surface); stroke: var(--ink); stroke-width: 1.5; }
.chart-flag { fill: var(--accent); }
.chart-flag-ring { fill: none; stroke: var(--accent); stroke-width: 1.5; }
.chart-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  fill: var(--muted);
}
.chart-label-accent { fill: var(--accent); }
.chart-callout { stroke: var(--accent); stroke-width: 1; }

@media (prefers-reduced-motion: no-preference) {
  .chart-line {
    stroke-dasharray: 1400;
    stroke-dashoffset: 1400;
    animation: draw 1.7s cubic-bezier(0.65, 0, 0.35, 1) 0.3s forwards;
  }
  .chart-dot, .chart-flag, .chart-flag-ring, .chart-callout, .chart-flag-label {
    opacity: 0;
    animation: fade 0.5s ease forwards;
    animation-delay: 1.8s;
  }
  .chart-flag-ring { animation: ringpulse 0.7s ease 1.9s 1 forwards; }
  .hero-reveal {
    opacity: 0;
    transform: translateY(14px);
    animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
  }
  .hero-reveal.d1 { animation-delay: 0.05s; }
  .hero-reveal.d2 { animation-delay: 0.13s; }
  .hero-reveal.d3 { animation-delay: 0.21s; }
  .hero-reveal.d4 { animation-delay: 0.29s; }
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }
@keyframes rise { to { opacity: 1; transform: translateY(0); } }
@keyframes ringpulse {
  0% { opacity: 0; transform-origin: center; }
  40% { opacity: 1; }
  100% { opacity: 1; }
}

img { max-width: 100%; }
[hidden] { display: none !important; }