/* ==========================================================================
   Tech Solutions RIH SpA — hoja de estilos
   Dark-first. Paleta: pizarra-teal profunda + acento cobre + contrapunto teal.
   Tipografías: Archivo (display) · Source Sans 3 (texto) · IBM Plex Mono (datos)
   ========================================================================== */

/* --- Tokens: tema oscuro por defecto --------------------------------------- */
:root {
--ground:      #0B1220;
  --surface:     #131C2E;
  --raised:      #1B263C;
  --line:        #23304A;
  --line-strong: #36476B;
  --text:        #E9EEF8;
  --muted:       #9AA7BF;
  --faint:       #6D7C99;
  --accent:      #F97316;
  --accent-ink:  #170A00;
  --accent-soft: rgba(249, 115, 22, 0.15);
  --cool:        #6C9BF5;
  --cool-soft:   rgba(108, 155, 245, 0.14);
  --brand-a:     #4F82F0;
  --brand-b:     #F97316;
  --shadow:      0 18px 48px -24px rgba(0, 0, 0, 0.8);

  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --measure: 62ch;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --max: 1180px;
  --radius: 3px;
}

/* --- Tokens: tema claro ---------------------------------------------------- */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
--ground:      #F5F7FB;
    --surface:     #FFFFFF;
    --raised:      #FFFFFF;
    --line:        #DEE4EF;
    --line-strong: #B7C2D6;
    --text:        #0B1220;
    --muted:       #4A5670;
    --faint:       #74809A;
    --accent:      #DA5F0B;
    --accent-ink:  #FFFFFF;
    --accent-soft: rgba(218, 95, 11, 0.10);
    --cool:        #1D4ED8;
    --cool-soft:   rgba(29, 78, 216, 0.09);
    --brand-a:     #1D4ED8;
    --brand-b:     #EA580C;
    --shadow:      0 14px 40px -26px rgba(11, 18, 32, 0.35);
  }
}

:root[data-theme="light"] {
--ground:      #F5F7FB;
  --surface:     #FFFFFF;
  --raised:      #FFFFFF;
  --line:        #DEE4EF;
  --line-strong: #B7C2D6;
  --text:        #0B1220;
  --muted:       #4A5670;
  --faint:       #74809A;
  --accent:      #DA5F0B;
  --accent-ink:  #FFFFFF;
  --accent-soft: rgba(218, 95, 11, 0.10);
  --cool:        #1D4ED8;
  --cool-soft:   rgba(29, 78, 216, 0.09);
  --brand-a:     #1D4ED8;
  --brand-b:     #EA580C;
  --shadow:      0 14px 40px -26px rgba(11, 18, 32, 0.35);
}

:root[data-theme="dark"] {
--ground:      #0B1220;
  --surface:     #131C2E;
  --raised:      #1B263C;
  --line:        #23304A;
  --line-strong: #36476B;
  --text:        #E9EEF8;
  --muted:       #9AA7BF;
  --faint:       #6D7C99;
  --accent:      #F97316;
  --accent-ink:  #170A00;
  --accent-soft: rgba(249, 115, 22, 0.15);
  --cool:        #6C9BF5;
  --cool-soft:   rgba(108, 155, 245, 0.14);
  --brand-a:     #4F82F0;
  --brand-b:     #F97316;
  --shadow:      0 18px 48px -24px rgba(0, 0, 0, 0.8);
}

/* --- Base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.022em;
  text-wrap: balance;
  margin: 0;
}

h1 { font-size: clamp(2.2rem, 5.4vw, 3.55rem); font-weight: 800; }
h2 { font-size: clamp(1.85rem, 3.9vw, 2.7rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.012em; }

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

img, svg { max-width: 100%; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  max-width: 5rem;
}

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--muted);
  max-width: var(--measure);
}

section { padding-block: clamp(3.75rem, 8vw, 6.75rem); }
section + section { border-top: 1px solid var(--line); }

.sec-head { display: flex; flex-direction: column; gap: 1rem; margin-bottom: clamp(2.25rem, 4vw, 3.25rem); }

/* --- Botones --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.72rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--solid { background: var(--accent); color: var(--accent-ink); }
.btn--solid:hover { background: color-mix(in srgb, var(--accent) 86%, #000); }
.btn--ghost { border-color: var(--line-strong); color: var(--text); background: transparent; }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn__arrow { font-family: var(--font-mono); font-size: 0.9em; }
.nav__cta { white-space: nowrap; padding-inline: 1.1rem; }

/* --- Barra de navegación --------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 4.25rem;
  position: relative;
  min-width: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  margin-right: auto;
  min-width: 0;
}
.brand__mark { width: 36px; height: 36px; flex-shrink: 0; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.brand__name span { color: var(--accent); }
.brand__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  /* Centrada bajo el nombre. El margen derecho compensa el espacio que
     letter-spacing agrega despues de la ultima letra: sin el, el texto
     queda medio caracter corrido a la derecha. */
  text-align: center;
  margin-right: 0.15em;
  text-transform: uppercase;
  color: var(--faint);
  font-weight: 400;
}

.nav__links { display: flex; gap: 1.35rem; list-style: none; margin: 0; padding: 0; }
.nav__links a {
  text-decoration: none;
  font-size: 0.885rem;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  padding-block: 0.35rem;
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}
.nav__links a:hover { color: var(--text); border-bottom-color: var(--accent); }

.nav__actions { display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg { width: 17px; height: 17px; }

.nav__burger {
  display: none;
  width: 2.3rem; height: 2.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

@media (max-width: 1080px) {
  .nav__links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1.1rem;
  }
  .nav__links[hidden] { display: none; }
  .nav__links a { display: block; padding-block: 0.7rem; border-bottom: 1px solid var(--line); }
  .nav__burger { display: grid; place-items: center; }
  .nav__cta { display: none; }
}
@media (min-width: 1081px) {
  .nav__links[hidden] { display: flex; }
}

/* --- Hero ----------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(3.5rem, 9vw, 7rem) clamp(3.5rem, 7vw, 5.5rem);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 68px 68px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 80% 70% at 78% 15%, #000 10%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 78% 15%, #000 10%, transparent 72%);
  pointer-events: none;
}
.hero__inner { position: relative; display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 960px) {
  .hero__inner { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); align-items: start; }
}
.hero__copy { display: flex; flex-direction: column; gap: 1.5rem; align-items: flex-start; }
.hero h1 em {
  font-style: normal;
  color: var(--accent);
  display: block;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.35rem; }

/* Panel de datos técnicos del hero */
.spec {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.spec__head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.1rem;
  border-bottom: 1px solid var(--line);
  background: var(--raised);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}
.spec__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cool); flex-shrink: 0; }
.spec__list { margin: 0; padding: 0.35rem 0; }
.spec__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.7rem 1.1rem;
}
.spec__row + .spec__row { border-top: 1px solid var(--line); }
.spec__row dt { font-size: 0.88rem; color: var(--muted); white-space: nowrap; }
.spec__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  text-align: right;
  text-wrap: balance;
  font-variant-numeric: tabular-nums;
}
.spec__foot {
  padding: 0.8rem 1.1rem;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--faint);
  background: var(--raised);
}

/* --- Servicios ------------------------------------------------------------ */
.svc-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
@media (min-width: 780px) { .svc-list { grid-template-columns: 1fr 1fr; } }

.svc {
  display: grid;
  gap: 0.6rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}
@media (min-width: 780px) {
  .svc { padding: 1.75rem clamp(1.25rem, 3vw, 2.25rem); }
  .svc:nth-child(odd) { border-right: 1px solid var(--line); padding-left: 0; }
  .svc:nth-child(even) { padding-right: 0; }
}
.svc__top { display: flex; align-items: center; gap: 0.85rem; }
.svc__icon {
  width: 2.35rem; height: 2.35rem;
  flex-shrink: 0;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
}
.svc__icon svg { width: 19px; height: 19px; }
.svc__code {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--faint);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}
.svc p { font-size: 0.96rem; color: var(--muted); }
.svc__meta {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--cool);
  letter-spacing: 0.04em;
}

/* --- Diferenciadores ------------------------------------------------------ */
.why { display: grid; gap: clamp(2rem, 4vw, 3.5rem); }
@media (min-width: 900px) { .why { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); } }
.why__points { display: grid; gap: 1.5rem; }
.point { display: grid; gap: 0.4rem; padding-left: 1.25rem; border-left: 2px solid var(--accent); }
.point h3 { font-size: 1.05rem; }
.point p { font-size: 0.95rem; color: var(--muted); }

/* --- Proceso (secuencia real, la numeración informa) --------------------- */
.steps { display: grid; gap: 0; counter-reset: step; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step {
  counter-increment: step;
  display: grid;
  gap: 0.55rem;
  padding: 1.6rem 0 1.6rem 0;
  border-top: 2px solid var(--line);
  position: relative;
}
@media (min-width: 860px) { .step { padding-right: 1.5rem; } }
.step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.step h3 { font-size: 1.02rem; }
.step p { font-size: 0.92rem; color: var(--muted); }
.step__when {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--faint);
  letter-spacing: 0.05em;
}

/* --- Sector público ------------------------------------------------------- */
.public {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}
@media (min-width: 900px) { .public { grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); } }
.figure-block {
  border: 1px solid var(--line);
  border-left: 3px solid var(--cool);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(1.35rem, 3vw, 1.85rem);
  display: grid;
  gap: 0.5rem;
}
.figure-block__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 5vw, 2.9rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.figure-block__label { font-size: 0.95rem; color: var(--muted); }
.figure-block__note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faint);
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.tags { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.35rem; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  padding: 0.28rem 0.6rem;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  color: var(--muted);
  background: var(--cool-soft);
}

/* --- Contacto ------------------------------------------------------------- */
.contact { display: grid; gap: clamp(2rem, 4vw, 3.5rem); }
@media (min-width: 900px) { .contact { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); } }

.contact__details { display: grid; gap: 1.15rem; align-content: start; }
.detail { display: grid; gap: 0.15rem; }
.detail dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}
.detail dd { margin: 0; font-size: 1rem; }
.detail dd a { text-decoration: none; border-bottom: 1px solid var(--accent); }
.detail dd a:hover { color: var(--accent); }

.form { display: grid; gap: 1rem; }
.form__row { display: grid; gap: 1rem; }
@media (min-width: 620px) { .form__row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 0.35rem; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input, .field select, .field textarea {
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.65rem 0.8rem;
  width: 100%;
  transition: border-color 0.16s ease;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); outline: none; }
.field textarea { resize: vertical; min-height: 7rem; }
.form__note { font-size: 0.82rem; color: var(--faint); }
.form__status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cool);
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--cool);
  border-radius: var(--radius);
  background: var(--cool-soft);
}
.form__status[hidden] { display: none; }

/* --- Footer -------------------------------------------------------------- */
.footer { border-top: 1px solid var(--line); background: var(--surface); padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.footer__grid { display: grid; gap: 2rem; }
@media (min-width: 760px) { .footer__grid { grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)); } }
.footer h4 {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.9rem;
}
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.footer a { text-decoration: none; color: var(--muted); font-size: 0.92rem; }
.footer a:hover { color: var(--accent); }
.footer__about { display: grid; gap: 0.9rem; align-content: start; }
.footer__about p { font-size: 0.92rem; color: var(--muted); max-width: 34ch; }
.footer__bar {
  margin-top: clamp(2rem, 4vw, 2.75rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faint);
  letter-spacing: 0.04em;
}

/* --- Utilidades ---------------------------------------------------------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.6rem 1rem;
  z-index: 100;
  border-radius: var(--radius);
}
.skip:focus { left: 0.75rem; top: 0.75rem; }

.sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}