/* ===== Variables ===== */
:root {
  --black: #141414;
  --gray-800: #2b2b2b;
  --gray-600: #5c5c5c;
  --gray-400: #9a9a9a;
  --gray-200: #e4e2de;
  --gray-100: #f4f3f0;
  --white: #ffffff;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-brand: "Jost", "Futura", "Century Gothic", sans-serif;
  --max-width: 1120px;
  --header-h: 72px;
}

/* ===== Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
}

a {
  color: inherit;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--black);
  line-height: 1.2;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--gray-100);
}

.section-dark {
  background: var(--black);
  color: var(--gray-200);
}

.section-dark h2 {
  color: var(--white);
}

.section-head {
  margin-bottom: 48px;
  max-width: 640px;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

.section-lead {
  margin-top: 16px;
  color: var(--gray-600);
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.grid {
  display: grid;
  gap: 24px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-brand);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--black);
  text-decoration: none;
  white-space: nowrap;
}

.logo img {
  width: auto;
  height: 40px;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--black);
}

.main-nav {
  display: none;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
}

.main-nav.is-open {
  display: block;
}

.main-nav ul {
  padding: 8px 16px 16px;
}

.main-nav a {
  display: block;
  padding: 12px 0;
  font-size: 0.9rem;
  font-weight: 400;
  text-decoration: none;
}

.main-nav a:hover {
  color: var(--gray-600);
}

/* ===== Botones ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--black);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn-dark {
  background: var(--black);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--gray-800);
}

.btn-outline {
  background: transparent;
  color: var(--black);
}

.btn-outline:hover {
  background: var(--black);
  color: var(--white);
}

.btn-light {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

.btn-light:hover {
  background: var(--gray-200);
}

/* ===== Hero ===== */
.hero {
  padding: 96px 0 64px;
  border-bottom: 1px solid var(--gray-200);
}

.hero-inner {
  text-align: center;
  max-width: 860px;
}

.hero-logo {
  display: block;
  width: 220px;
  height: auto;
  margin: 0 auto 48px;
}

.hero h1 {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 72px;
  border-top: 1px solid var(--gray-200);
}

.stat {
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  padding-top: 32px;
  text-align: center;
}

.stat dd {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 600;
  color: var(--black);
  line-height: 1;
}

.stat dt {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--gray-600);
}

/* ===== Servicios ===== */
.card {
  padding: 40px 32px;
  border: 1px solid var(--gray-200);
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: var(--black);
  transform: translateY(-4px);
}

.card-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.card h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.card p {
  color: var(--gray-600);
}

/* ===== Sistemas ===== */
.system {
  display: grid;
  gap: 16px;
  padding: 40px 0;
  border-top: 1px solid var(--gray-200);
}

.system:last-child {
  border-bottom: 1px solid var(--gray-200);
}

.system h3 {
  font-size: 1.9rem;
}

.system-sub {
  font-weight: 400;
  color: var(--black);
}

.system-client {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--gray-600);
}

.system-body > p {
  margin-bottom: 20px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tags li {
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 400;
  border: 1px solid var(--gray-400);
  border-radius: 999px;
}

/* ===== Clientes ===== */
.client-group {
  padding: 32px;
  border: 1px solid var(--gray-200);
}

.client-group h3 {
  font-size: 1.5rem;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.client-group li {
  position: relative;
  padding: 6px 0 6px 20px;
  font-size: 0.95rem;
}

.client-group li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 8px;
  height: 1px;
  background: var(--black);
}

/* ===== Trayectoria ===== */
.timeline {
  position: relative;
  max-width: 760px;
  padding-left: 32px;
  border-left: 1px solid var(--gray-200);
}

.timeline li {
  position: relative;
  padding-bottom: 40px;
}

.timeline li:last-child {
  padding-bottom: 0;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--black);
}

.timeline h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.timeline p {
  color: var(--gray-600);
}

/* ===== Equipo ===== */
.team {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.member {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--gray-200);
}

.avatar {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  letter-spacing: 0.05em;
}

.member strong {
  display: block;
  font-weight: 500;
  color: var(--black);
}

.member div span {
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* ===== Contacto ===== */
.contact {
  display: grid;
  gap: 48px;
}

.contact-info h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 16px;
}

.contact-mail {
  display: inline-block;
  margin-top: 24px;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--white);
  text-underline-offset: 6px;
}

.contact-form {
  display: grid;
  gap: 20px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 0;
  font: inherit;
  font-size: 1rem;
  letter-spacing: normal;
  text-transform: none;
  color: var(--white);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--gray-600);
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-bottom-color: var(--white);
}

.contact-form .btn {
  justify-self: start;
}

.contact-form .hp {
  display: none;
}

.form-status {
  font-size: 0.9rem;
  min-height: 1.5em;
}

/* ===== Footer ===== */
.site-footer {
  padding: 32px 0;
  background: var(--black);
  border-top: 1px solid var(--gray-800);
  color: var(--gray-400);
  font-size: 0.8rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer-logo {
  width: 120px;
  height: auto;
}

/* ===== Animación al hacer scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== Tablet ===== */
@media (min-width: 640px) {
  .team {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== Desktop ===== */
@media (min-width: 900px) {
  .section {
    padding: 128px 0;
  }

  .hero {
    padding: 128px 0 80px;
  }

  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .team {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact {
    grid-template-columns: 1fr 1.2fr;
    gap: 96px;
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
  }

  .system {
    grid-template-columns: 2fr 3fr;
    gap: 64px;
    padding: 48px 0;
  }
}

/* ===== Menú de escritorio ===== */
@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    display: block;
    position: static;
    border: none;
    background: none;
  }

  .main-nav ul {
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 0;
  }

  .main-nav a {
    padding: 0;
  }

  .nav-cta {
    padding: 10px 20px !important;
    border: 1px solid var(--black);
  }

  .nav-cta:hover {
    background: var(--black);
    color: var(--white) !important;
  }
}