/* ============================================================
   desarrolloUy — Landing page
   Diseño: dark moderno, violeta + cián, mobile-first
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --bg: #0b0716;
  --bg-alt: #100b20;
  --surface: #171130;
  --surface-2: #201743;
  --border: rgba(170, 148, 255, 0.15);
  --text: #ecebf8;
  --text-dim: #a7a1c8;
  --accent: #7d59ff;
  --accent-2: #2dd3ed;
  --grad: linear-gradient(120deg, #7c65ff 0%, #2bdaed 100%);
  --wa: #25d366;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: rgba(124, 101, 255, 0.4);
}

/* ---------- Layout ---------- */
.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

.container-narrow {
  width: min(820px, 100% - 2.5rem);
}

.section {
  padding: clamp(4rem, 8vw, 6.5rem) 0;
}

.section-alt {
  background: var(--bg-alt);
  border-block: 1px solid var(--border);
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 6vw, 3.5rem);
}

.section-kicker {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--text-dim);
  margin-top: 0.9rem;
  font-size: 1.05rem;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.2;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn svg {
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 28px rgba(124, 101, 255, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 14px 36px rgba(124, 101, 255, 0.5);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}

.btn-ghost:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
  background: rgba(43, 218, 237, 0.06);
}

.btn-wa {
  background: var(--wa);
  color: #06281a;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.25);
}

.btn-wa:hover {
  box-shadow: 0 14px 36px rgba(37, 211, 102, 0.4);
}

.btn-lg {
  padding: 1rem 1.9rem;
  font-size: 1.05rem;
}

.btn-small {
  padding: 0.5rem 1.1rem;
  font-size: 0.88rem;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(11, 7, 22, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  background: rgba(11, 7, 22, 0.92);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

.logo-mark svg,
.logo-mark img {
  width: 100%;
  height: 100%;
  display: block;
}

.logo-accent {
  color: #2dd3ed;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.site-nav > a:not(.nav-cta) {
  font-size: 0.95rem;
  color: var(--text-dim);
  transition: color 0.15s ease;
}

.site-nav > a:not(.nav-cta):hover {
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

/* Selector de idioma */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.lang-toggle:hover {
  border-color: var(--accent-2);
}

.lang-current {
  color: var(--accent-2);
}

.lang-alt {
  color: var(--text-dim);
}

.lang-divider {
  color: var(--text-dim);
  opacity: 0.5;
}

/* Menú hamburguesa (móvil) */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  border-radius: 8px;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(3rem, 8vw, 6rem)) 0 clamp(4rem, 8vw, 6.5rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(600px 320px at 85% 10%, rgba(124, 101, 255, 0.22), transparent 60%),
    radial-gradient(520px 300px at 10% 90%, rgba(43, 218, 237, 0.14), transparent 60%),
    linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
  background-size: auto, auto, 42px 42px, 42px 42px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 55%, transparent 100%);
}

.hero-inner {
  position: relative;
}

.hero-content {
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.42rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 12px rgba(43, 218, 237, 0.9);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6.5vw, 4.1rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin-bottom: 1.4rem;
}

.hero-title span {
  display: block;
}

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.2rem;
}

.hero-note {
  font-size: 0.88rem;
  color: var(--text-dim);
  opacity: 0.85;
}

/* ---------- Grid / Cards ---------- */
.grid {
  display: grid;
  gap: 1.4rem;
}

.cards {
  grid-template-columns: 1fr;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(124, 101, 255, 0.55);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  background: rgba(124, 101, 255, 0.14);
  color: var(--accent-2);
  margin-bottom: 1.2rem;
}

.card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  margin-bottom: 0.55rem;
}

.card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- Metodología ---------- */
.steps {
  display: grid;
  gap: 1.4rem;
  counter-reset: step;
}

.step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.step:hover {
  border-color: rgba(43, 218, 237, 0.5);
}

.step-num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
  margin-bottom: 1rem;
  opacity: 0.85;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  margin-bottom: 0.55rem;
}

.step p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- FAQ ---------- */
.faq-list {
  display: grid;
  gap: 0.9rem;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: rgba(124, 101, 255, 0.55);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.4rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--accent-2);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 1.4rem 1.2rem;
  color: var(--text-dim);
  font-size: 0.96rem;
  max-width: 64ch;
}

/* ---------- Contacto ---------- */
.section-contact {
  padding-bottom: clamp(4.5rem, 9vw, 7rem);
}

.contact-box {
  text-align: center;
  background:
    radial-gradient(420px 240px at 50% 0%, rgba(124, 101, 255, 0.16), transparent 65%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: clamp(2.5rem, 6vw, 4rem) clamp(1.5rem, 4vw, 3.5rem);
}

.contact-box .section-title {
  max-width: 560px;
  margin-inline: auto;
}

.contact-box .section-sub {
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: 2.2rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.4rem;
}

.contact-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.2rem 2.4rem;
}

.contact-info a {
  display: inline-flex;
  flex-direction: column;
  gap: 0.15rem;
  text-align: center;
}

.contact-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.contact-value {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text);
}

.contact-info a:hover .contact-value {
  color: var(--accent-2);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.2rem 0;
  background: var(--bg-alt);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%) translateY(140%);
  z-index: 300;
  max-width: min(460px, calc(100% - 2rem));
  padding: 0.85rem 1.25rem;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  font-size: 0.92rem;
  color: var(--text);
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ---------- Botón flotante de WhatsApp ---------- */
.wa-float {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 250;
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--wa);
  color: #fff;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.wa-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--wa);
  z-index: -1;
  animation: wa-pulse 2.6s ease-out infinite;
}

@keyframes wa-pulse {
  0% {
    transform: scale(1);
    opacity: 0.45;
  }
  70%,
  100% {
    transform: scale(1.65);
    opacity: 0;
  }
}

.wa-float:hover,
.wa-float:focus-visible {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 14px 38px rgba(37, 211, 102, 0.55);
}

.wa-float svg {
  width: 1.75rem;
  height: 1.75rem;
}

/* Tooltip */
.wa-float-tip {
  position: absolute;
  right: calc(100% + 0.8rem);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  white-space: nowrap;
  padding: 0.45rem 0.9rem;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.wa-float:hover .wa-float-tip,
.wa-float:focus-visible .wa-float-tip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.4rem;
}

.footer-nav a {
  color: var(--text-dim);
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

.footer-nav a:hover {
  color: var(--text);
}

.footer-copy {
  color: var(--text-dim);
  font-size: 0.85rem;
  opacity: 0.85;
}

/* ---------- Animaciones ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

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

  .btn,
  .card,
  .step {
    transition: none;
  }

  .wa-float::before {
    animation: none;
  }
}

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

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

@media (min-width: 1024px) {
  .cards {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

@media (max-width: 767px) {
  .menu-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    padding: 1.2rem 1.25rem 1.6rem;
    background: rgba(11, 7, 22, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }

  .site-nav.open {
    opacity: 1;
    transform: none;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav > a {
    width: 100%;
    padding: 0.7rem 0;
    font-size: 1.05rem !important;
    border-bottom: 1px solid var(--border);
  }

  .site-nav > a:last-child {
    border-bottom: none;
  }

  .nav-cta {
    margin-top: 0.6rem;
    justify-content: center;
  }

  .wa-float {
    right: 1rem;
    bottom: 1rem;
    width: 3.1rem;
    height: 3.1rem;
  }

  .wa-float svg {
    width: 1.55rem;
    height: 1.55rem;
  }
}