/* =========================================================
   Inventra — Soluciones en control de inventarios
   Hoja de estilos principal
   ========================================================= */

:root {
  --color-ink: #14181c;
  --color-ink-soft: #3a4148;
  --color-body: #52606b;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f9f8;
  --color-border: #e3e9e8;

  --color-accent: #0e9f8e;
  --color-accent-dark: #0b7f72;
  --color-accent-darker: #096a5f;
  --color-accent-light: #e3f5f2;

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(20, 24, 28, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 24, 28, 0.08);
  --shadow-lg: 0 20px 48px rgba(20, 24, 28, 0.12);

  --container: 1140px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-body);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  color: var(--color-ink);
  line-height: 1.2;
  margin: 0 0 0.6em 0;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--tight {
  padding: 56px 0;
}

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  background: var(--color-accent-light);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.section-head {
  max-width: 680px;
  margin: 0 0 48px 0;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.lead {
  font-size: 1.15rem;
  color: var(--color-body);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn svg { width: 18px; height: 18px; flex: none; }

.btn--primary {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}

.btn--on-dark {
  background: #ffffff;
  color: var(--color-accent-darker);
}

.btn--on-dark:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
}

.btn--block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.brand img { height: 60px; width: auto; }

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav a {
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-ink-soft);
  transition: background 0.15s ease, color 0.15s ease;
}

.nav a:hover,
.nav a.is-active {
  background: var(--color-accent-light);
  color: var(--color-accent-darker);
}

.header-cta {
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-right: 6px;
  margin-right: 4px;
  border-right: 1px solid var(--color-border);
}

.lang-switch a {
  display: flex;
  line-height: 0;
  border-radius: 3px;
  overflow: hidden;
  opacity: 0.4;
  transition: opacity 0.15s ease, box-shadow 0.15s ease;
}

.lang-switch a:hover {
  opacity: 0.75;
}

.lang-switch a.is-active {
  opacity: 1;
  box-shadow: 0 0 0 2px var(--color-accent-light);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
}

.nav-toggle svg { width: 22px; height: 22px; display: block; }

@media (max-width: 880px) {
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 10px 24px 18px;
    gap: 4px;
    display: none;
    box-shadow: var(--shadow-md);
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 14px; }
  .nav-toggle { display: inline-flex; }
  .header-cta .btn span { display: none; }
  .header-cta .btn { padding: 12px; }
}

/* ---------- Hero ---------- */

.hero {
  padding: 76px 0 90px;
  background:
    radial-gradient(720px 420px at 85% -10%, var(--color-accent-light) 0%, rgba(227,245,242,0) 70%),
    var(--color-bg);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
}

.hero__slogan {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 14px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero__meta {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  font-size: 0.92rem;
  color: var(--color-ink-soft);
}

.hero__meta strong {
  color: var(--color-ink);
  display: block;
  font-size: 1.05rem;
}

.hero__art {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--color-ink);
  color: #fff;
  padding: 36px;
  box-shadow: var(--shadow-lg);
}

.hero__art .barcode {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 70px;
  margin-bottom: 22px;
}

.hero__art .barcode span {
  display: block;
  width: 4px;
  background: var(--color-accent);
  border-radius: 2px;
}

.hero__art h3 { color: #fff; margin-bottom: 6px; }
.hero__art p { color: #c7d0d3; margin-bottom: 0; }

.hero__stat-row {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.hero__stat {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.hero__stat b {
  display: block;
  font-size: 1.3rem;
  color: #fff;
}

.hero__stat span {
  font-size: 0.82rem;
  color: #aeb9bc;
}

/* ---------- Hero: sistema vs. físico ---------- */

.hero__art-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #aeb9bc;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 14px;
}

.count-table {
  margin: 18px 0 20px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.count-table__row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1.1fr;
  gap: 8px;
  padding: 11px 16px;
  font-size: 0.98rem;
  font-variant-numeric: tabular-nums;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.count-table__row:last-child { border-bottom: none; }

.count-table__row--head {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #aeb9bc;
  background: rgba(255,255,255,0.06);
}

.count-table__row span:not(:first-child) { text-align: right; }

.diff { font-weight: 700; }
.diff--ok   { color: #5fd8c7; }
.diff--warn { color: #f2c76b; }
.diff--bad  { color: #ff8a80; }

.hero__art-text { font-size: 0.95rem; }

/* ---------- Problema / solución ---------- */

.card--pain { border-top: 3px solid #e8a39b; }
.card--pain .card__icon { background: #fdecea; color: #a8362b; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  counter-reset: step;
}

@media (max-width: 820px) {
  .steps { grid-template-columns: 1fr; }
}

.step {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
}

.step__num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step h3 { margin-bottom: 8px; }
.step p { margin: 0; font-size: 0.97rem; }

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  margin: 40px 0 36px;
}

@media (max-width: 720px) {
  .compare { grid-template-columns: 1fr; }
}

.compare__col {
  border-radius: var(--radius-md);
  padding: 28px 28px 22px;
  border: 1px solid var(--color-border);
  background: #fff;
}

.compare__col h3 { margin-bottom: 14px; }
.compare__col ul { list-style: none; margin: 0; padding: 0; }
.compare__col li {
  position: relative;
  padding: 8px 0 8px 30px;
  font-size: 0.97rem;
}
.compare__col li::before {
  position: absolute;
  left: 0;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 20px;
  text-align: center;
}

.compare__col--before h3 { color: #a8362b; }
.compare__col--before li::before { content: "\2715"; background: #fdecea; color: #a8362b; }

.compare__col--after { border-color: var(--color-accent); box-shadow: var(--shadow-md); }
.compare__col--after h3 { color: var(--color-accent-darker); }
.compare__col--after li::before { content: "\2713"; background: var(--color-accent-light); color: var(--color-accent-darker); }

/* ---------- Partner strip ---------- */

.partner-strip-section {
  padding: 36px 0;
}

.partner-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px 32px;
  text-align: center;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.partner-strip:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: transparent;
}

.partner-strip__label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-ink-soft);
}

.partner-strip__logo {
  height: 44px;
  width: auto;
}

.partner-strip__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-accent-dark);
}

.partner-strip__cta svg { width: 15px; height: 15px; }

@media (max-width: 620px) {
  .partner-strip { flex-direction: column; gap: 14px; padding: 24px; }
}

/* ---------- Cards / grids ---------- */

.grid {
  display: grid;
  gap: 26px;
}

.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 920px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid--3, .grid--4, .grid--2 { grid-template-columns: 1fr; }
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  height: 100%;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: transparent;
}

.card__icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--color-accent-light);
  color: var(--color-accent-darker);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.card__icon svg { width: 26px; height: 26px; }

.card h3 { margin-bottom: 10px; }
.card p { margin-bottom: 0; font-size: 0.97rem; }

.card--link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-weight: 600;
  color: var(--color-accent-dark);
  font-size: 0.92rem;
}

/* ---------- Feature list rows ---------- */

.feature-row {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.feature-row:last-child { border-bottom: none; }

.feature-row__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-accent-light);
  color: var(--color-accent-darker);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-row__icon svg { width: 22px; height: 22px; }

.feature-row h4 { margin: 0 0 4px 0; font-size: 1.05rem; color: var(--color-ink); }
.feature-row p { margin: 0; font-size: 0.95rem; }

/* ---------- Split sections ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 36px; }
}

.split img,
.split .panel {
  border-radius: var(--radius-lg);
}

.panel {
  background: var(--color-ink);
  color: #fff;
  padding: 42px;
  box-shadow: var(--shadow-lg);
}

.panel h3 { color: #fff; }
.panel p { color: #c7d0d3; }

.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  align-items: flex-start;
}
.checklist li svg {
  width: 20px; height: 20px; flex: none; margin-top: 2px;
  color: var(--color-accent);
}

/* ---------- CTA banner ---------- */

.cta-banner {
  background: linear-gradient(135deg, var(--color-accent-darker), var(--color-accent));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 56px;
  text-align: center;
}

.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255,255,255,0.88); }

.cta-banner .hero__actions { justify-content: center; }

/* ---------- Badge / disclaimer ---------- */

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.86rem;
  color: var(--color-ink-soft);
  font-weight: 600;
}

.badge svg { width: 16px; height: 16px; color: var(--color-accent-dark); }

.note-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  font-size: 0.92rem;
  color: var(--color-ink-soft);
}

/* ---------- Breadcrumb / page hero (interior pages) ---------- */

.page-hero {
  padding: 56px 0 40px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.page-hero .eyebrow { margin-bottom: 14px; }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 50px;
  align-items: flex-start;
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-card {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
}
.contact-card:last-child { border-bottom: none; }

.contact-card__icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--color-accent-light);
  color: var(--color-accent-darker);
  display: flex; align-items: center; justify-content: center;
  flex: none;
}
.contact-card__icon svg { width: 22px; height: 22px; }

.contact-card h4 { margin: 0 0 4px 0; font-size: 1rem; color: var(--color-ink); }
.contact-card p { margin: 0; font-size: 0.95rem; }
.contact-card a { color: var(--color-accent-dark); font-weight: 600; }

.form-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-md);
}

.form-row { margin-bottom: 18px; }
.form-row--2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .form-row--2 { grid-template-columns: 1fr; } }

label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-ink);
  margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--color-ink);
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

textarea { resize: vertical; min-height: 130px; }

.form-hint { font-size: 0.82rem; color: #8894a0; margin-top: 6px; }

.form-alert {
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 22px;
  font-size: 0.94rem;
  font-weight: 600;
}
.form-alert--ok {
  background: var(--color-accent-light);
  color: var(--color-accent-darker);
  border: 1px solid #bfe6df;
}
.form-alert--error {
  background: #fdecec;
  color: #9c2b2b;
  border: 1px solid #f3c6c6;
}

/* honeypot field */
.hp-field { position: absolute; left: -9999px; top: -9999px; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-ink);
  color: #b9c2c6;
  padding: 60px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

.footer-brand img { height: 26px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 0.92rem; color: #9aa5aa; max-width: 320px; }

.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; font-size: 0.94rem; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  font-size: 0.85rem;
  color: #7c878c;
}

/* ---------- Utilities ---------- */

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ---------- Ajustes móviles (hero) ---------- */

.hero__grid > * { min-width: 0; }

@media (max-width: 620px) {
  .btn { white-space: normal; text-align: left; }
  .hero__actions .btn { width: 100%; justify-content: center; text-align: center; }
  .hero__art { padding: 26px 20px; }
  .count-table__row { padding: 10px 12px; font-size: 0.9rem; }
}

@media (max-width: 620px) {
  .brand img { height: 40px; }
  .site-header__inner { gap: 10px; }
  .header-cta { gap: 6px; }
  .lang-switch { padding-right: 2px; margin-right: 0; gap: 4px; }
}

/* Servicios: problema que resuelve cada tarjeta */
.card__problem { display: inline-block; margin-bottom: 10px; padding: 4px 10px; border-radius: 999px; background: #fdecea; color: #a8362b; font-size: 0.8rem; font-weight: 600; line-height: 1.3; }