/* ===== Tokens ===== */
:root {
  --bg: #0A0A0A;
  --surface: #151515;
  --surface-2: #1E1E1E;
  --border: #2C2C2C;
  --divider: #1A1A1A;
  --text: #FFFFFF;
  --text-muted: #9C9C9C;
  --accent: #29ABE2;
  --accent-hover: #1E7FA8;
  --accent-dim: rgba(41, 171, 226, 0.12);
  --accent-contrast: #0A0A0A;
  --dot-color: rgba(255, 255, 255, 0.035);
  --nav-bg: rgba(10, 10, 10, 0.85);

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --radius: 10px;
  --max-width: 1120px;
  --nav-height: 88px;
}

:root[data-theme="light"] {
  --bg: #F3F3F1;
  --surface: #FFFFFF;
  --surface-2: #ECECE9;
  --border: #DEDEDA;
  --divider: #E5E5E1;
  --text: #111110;
  --text-muted: #66665F;
  --accent: #12739E;
  --accent-hover: #0D5A7D;
  --accent-dim: rgba(18, 115, 158, 0.10);
  --accent-contrast: #FFFFFF;
  --dot-color: rgba(0, 0, 0, 0.045);
  --nav-bg: rgba(243, 243, 241, 0.85);
}

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

html { scroll-behavior: smooth; }

html, body {
  overflow-x: hidden;
}

body {
  background-color: var(--bg);
  background-image: radial-gradient(var(--dot-color) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--nav-height);
  transition: background-color 0.25s ease, color 0.25s ease;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.hero,
.section {
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

/* ===== Layout helpers ===== */
.section {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px 24px;
}

/* Separador sutil de ancho completo entre secciones */
.section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: max(33vw, 140px);
  height: 1px;
  background: var(--divider);
}

.section__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  text-align: center;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  margin: 0 auto 40px;
  text-align: center;
  max-width: 640px;
}

/* ===== Nav ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  height: var(--nav-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 40px;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.nav__logo { justify-self: start; }
.nav__links { justify-self: center; }
.nav__controls {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.nav__logo-img { height: 24px; width: auto; display: block; }
:root[data-theme="light"] .nav__logo-img { filter: invert(1); }
.nav__logo-caption {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav__links {
  display: flex;
  gap: 32px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.nav__links li { position: relative; }
.nav__links a {
  display: inline-block;
  padding-bottom: 4px;
  position: relative;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav__links a.is-active {
  color: var(--text);
}
.nav__links a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
  background: var(--accent);
}

.nav__cta {
  font-size: 14px;
  font-weight: 500;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: border-color 0.2s, color 0.2s;
}
.nav__cta:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.lang-switch {
  display: flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
}
.lang-switch__btn {
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  transition: background 0.2s, color 0.2s;
}
.lang-switch__btn:hover {
  color: var(--text);
}
.lang-switch__btn.is-active {
  background: var(--accent);
  color: var(--accent-contrast);
}
.lang-switch__btn.is-active:hover {
  color: var(--accent-contrast);
}

.theme-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.theme-toggle__icon {
  position: absolute;
  font-size: 13px;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.theme-toggle__icon--light { opacity: 0; transform: scale(0.6); }
.theme-toggle__icon--dark { opacity: 1; transform: scale(1); }
:root[data-theme="light"] .theme-toggle__icon--light { opacity: 1; transform: scale(1); }
:root[data-theme="light"] .theme-toggle__icon--dark { opacity: 0; transform: scale(0.6); }

@media (max-width: 780px) {
  .nav__links { display: none; }
  .nav { grid-template-columns: 1fr 1fr; }
  .nav__logo { justify-self: start; order: 1; }
  .nav__controls { justify-self: end; order: 2; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.highlight { color: var(--accent); }

.hero__sub {
  margin: 22px auto 0;
  color: var(--text-muted);
  font-size: 17px;
  max-width: 50ch;
}

.hero__actions {
  margin-top: 32px;
  display: flex;
  justify-content: center;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 24px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 15px;
  transition: transform 0.15s ease, background 0.2s, border-color 0.2s;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn--primary:hover { background: var(--accent-hover); }

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--accent); }

/* Contenido del hero, por encima del fondo animado */
.hero__text {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hero__scroll-line {
  width: 1px;
  height: 28px;
  background: var(--accent);
  animation: hero-scroll-line 1.8s ease-in-out infinite;
}
@keyframes hero-scroll-line {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  40% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  60% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ===== Servicios ===== */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.service {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
  transition: border-color 0.2s;
}
.service:hover { border-color: var(--accent); }

.service__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 22px;
  border-radius: 12px;
  background: var(--surface-2);
  color: var(--accent);
  font-size: 24px;
}

.service__mark {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding-bottom: 10px;
  margin-bottom: 12px;
  position: relative;
}
.service__mark::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
}

.service p {
  color: var(--text-muted);
  font-size: 14px;
}

/* ===== Proceso ===== */
.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.process__step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
  transition: border-color 0.2s;
}
.process__step:hover { border-color: var(--accent); }

.process__number {
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--border);
}

.process__step .service__icon {
  margin-bottom: 22px;
}

.process__step p {
  color: var(--text-muted);
  font-size: 14px;
}

/* ===== About / Nosotros ===== */
.about {
  max-width: 720px;
}
.about__lead {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 500;
  margin-bottom: 18px;
}
.about p:not(.about__lead) {
  color: var(--text-muted);
  font-size: 15.5px;
}

/* ===== Projects grid ===== */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.projects-toggle-wrap {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}

.project {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.2s;
}
.project:hover {
  border-color: var(--accent);
}

.project.project--extra {
  display: none;
}
.project.project--extra.is-visible {
  display: flex;
}

.project__thumb {
  height: 250px;
  border-radius: 8px;
  margin-bottom: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}
.project__thumb--placeholder {
  background: var(--surface-2);
  position: relative;
}
.project__thumb--placeholder::after {
  content: attr(data-tag);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.project__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

.project__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 3px 10px;
  width: fit-content;
  margin: auto 0 12px;
}

.project h3 {
  font-family: var(--font-display);
  font-size: 17px;
  margin-bottom: 4px;
}
.project p.project__category {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 10px;
}
.project p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 14px;
}

.project__links {
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 500;
  margin-top: auto;
  padding-top: 8px;
}
.project__links a { color: var(--accent); }
.project__links a:hover { text-decoration: underline; }

/* ===== Contact ===== */
.section--contact { max-width: var(--max-width); }

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* Formulario oculto por el momento — dejamos solo la intro de contacto */
.contact__form-wrap {
  display: none;
}
.contact__grid {
  grid-template-columns: 1fr;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.social {
  justify-content: center;
}

.contact__intro .section__title { margin-bottom: 16px; }
.contact__sub {
  color: var(--text-muted);
  font-size: 15.5px;
}

.form__row {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.form__row-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 900px) {
  .contact__grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 560px) {
  .form__row-group { grid-template-columns: 1fr; }
}

.form__row label {
  font-size: 12.5px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}
.form__row input,
.form__row textarea,
.form__row select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14.5px;
  resize: vertical;
  transition: border-color 0.2s;
}
.form__row select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%239C9C9C'%3E%3Cpath d='M5.5 7.5l4.5 4.5 4.5-4.5' stroke='%239C9C9C' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.form__row input:focus,
.form__row textarea:focus,
.form__row select:focus {
  border-color: var(--accent);
  outline: none;
}
.form__row.has-error input,
.form__row.has-error textarea,
.form__row.has-error select {
  border-color: #F87171;
}
.form__error {
  font-size: 12px;
  color: #F87171;
  min-height: 14px;
}
.form__hint {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: -8px;
  margin-bottom: 18px;
}

.form__status {
  margin-top: 14px;
  font-size: 13.5px;
  font-family: var(--font-mono);
}
.form__status[data-state="success"] { color: var(--accent); }
.form__status[data-state="error"] { color: #F87171; }

.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ===== Social ===== */
.contact__social {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.contact__social p {
  color: var(--text-muted);
  font-size: 13.5px;
  margin-bottom: 14px;
}
.social {
  display: flex;
  gap: 12px;
}
.social__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  transition: border-color 0.2s, color 0.2s;
}
.social__link i { font-size: 15px; }
.social__link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== WhatsApp flotante ===== */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--surface);
  border: 2px solid var(--accent);
  color: var(--accent);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
  font-size: 38px;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  background: var(--accent);
  color: var(--accent-contrast);
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 32px 24px;
  color: var(--text-muted);
  font-size: 13px;
  font-family: var(--font-mono);
}

/* ============================================================
   SCROLL POR SECCIÓN (solo escritorio)
   Cada scroll lleva directo al inicio de la siguiente sección,
   con una animación suave (no un salto brusco).
   ============================================================ */
@media (min-width: 901px) {
  html {
    scroll-snap-type: y mandatory;
  }

  .hero,
  .section {
    min-height: calc(100vh - var(--nav-height));
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }

  .footer {
    scroll-snap-align: end;
  }
}