/* ==========================================================================
   Reset & Variables
   ========================================================================== */

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

:root {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-surface-alt: #334155;
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-accent: #38bdf8;
  --color-accent-hover: #0ea5e9;
  --color-accent-glow: rgba(56, 189, 248, 0.35);
  --color-whatsapp: #25d366;
  --color-whatsapp-hover: #20bd5a;

  --font-heading: "Poppins", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --header-height: 72px;
  --container-max: 1200px;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-hover);
}

ul {
  list-style: none;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
  border-radius: var(--radius);
  transition: top var(--transition);
}

.skip-link:focus {
  top: 1rem;
}

.section {
  padding-block: clamp(4rem, 10vw, 6rem);
}

.section-header {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section-header--left {
  text-align: left;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: clamp(1rem, 2vw, 1.125rem);
  max-width: 560px;
  margin-inline: auto;
}

.section-header--left .section-desc {
  margin-inline: 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition),
    color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

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

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-bg);
  box-shadow: 0 0 24px var(--color-accent-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-surface-alt);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(56, 189, 248, 0.08);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: #fff;
  border-color: var(--color-whatsapp);
}

.btn-whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  border-color: var(--color-whatsapp-hover);
  color: #fff;
  box-shadow: 0 0 20px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(15, 23, 42, 0.95);
  border-bottom-color: var(--color-surface-alt);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-heading);
  font-size: clamp(0.9rem, 2.5vw, 1.125rem);
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
  text-decoration: none;
}

.logo:hover {
  color: var(--color-accent);
}

.logo:hover .logo-text {
  color: var(--color-accent);
}

.logo-img {
  width: 2.75rem;
  height: 2.75rem;
  object-fit: contain;
  border-radius: 10px;
  background: #fff;
  padding: 4px;
  flex-shrink: 0;
  transition: box-shadow var(--transition);
}

.logo:hover .logo-img {
  box-shadow: 0 0 16px var(--color-accent-glow);
}

.logo-text {
  color: var(--color-text);
  transition: color var(--transition);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--color-surface-alt);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition);
}

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

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  padding-block: 0.25rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding-top: calc(var(--header-height) + clamp(3rem, 8vw, 5rem));
  padding-bottom: clamp(4rem, 10vw, 6rem);
  min-height: 100vh;
  display: flex;
  align-items: center;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(56, 189, 248, 0.15), transparent),
    var(--color-bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  background: rgba(56, 189, 248, 0.12);
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero — mockup profesional (escritorio + móvil) */
.hero-mockup {
  position: relative;
  width: 100%;
  max-width: 520px;
  margin-inline: auto;
  padding: 0.5rem;
}

.mockup-browser {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-alt);
  box-shadow:
    0 0 0 1px rgba(56, 189, 248, 0.12),
    0 28px 56px rgba(0, 0, 0, 0.45);
  transition: transform var(--transition), box-shadow var(--transition);
}

.hero-mockup:hover .mockup-browser {
  transform: translateY(-4px);
  box-shadow:
    0 0 0 1px rgba(56, 189, 248, 0.25),
    0 32px 64px rgba(0, 0, 0, 0.5);
}

.mockup-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: #0c1222;
  border-bottom: 1px solid var(--color-surface-alt);
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mockup-dot--red { background: #f87171; }
.mockup-dot--yellow { background: #fbbf24; }
.mockup-dot--green { background: #4ade80; }

.mockup-url {
  flex: 1;
  margin-left: 0.5rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border-radius: 6px;
  text-align: center;
}

.mockup-screen {
  padding: 1rem 1.125rem 1.25rem;
  background: linear-gradient(180deg, #1a2744 0%, var(--color-bg) 100%);
}

.mockup-site-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.mockup-site-logo {
  width: 2rem;
  height: 0.5rem;
  border-radius: 4px;
  background: var(--color-accent);
  margin-right: auto;
}

.mockup-site-link {
  width: 1.75rem;
  height: 0.35rem;
  border-radius: 3px;
  background: var(--color-surface-alt);
}

.mockup-site-cta {
  width: 2.5rem;
  height: 0.55rem;
  border-radius: 999px;
  background: var(--color-accent);
}

.mockup-site-hero {
  margin-bottom: 1rem;
}

.mockup-line {
  display: block;
  border-radius: 4px;
  background: var(--color-surface-alt);
}

.mockup-line--title {
  width: 75%;
  height: 0.55rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(90deg, var(--color-text) 0%, var(--color-surface-alt) 100%);
}

.mockup-line--sub {
  width: 55%;
  height: 0.35rem;
  margin-bottom: 0.65rem;
}

.mockup-pill {
  display: inline-block;
  width: 3.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--color-accent);
  opacity: 0.85;
}

.mockup-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.mockup-stat {
  padding: 0.5rem 0.35rem;
  text-align: center;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.15);
  border-radius: 8px;
}

.mockup-stat-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}

.mockup-stat-label {
  display: block;
  font-size: 0.5625rem;
  color: var(--color-text-muted);
  margin-top: 0.15rem;
}

.mockup-chart {
  display: flex;
  align-items: flex-end;
  gap: 0.35rem;
  height: 3.5rem;
  padding: 0.5rem 0.25rem 0;
  background: rgba(15, 23, 42, 0.6);
  border-radius: 8px;
  border: 1px solid var(--color-surface-alt);
}

.mockup-bar {
  flex: 1;
  height: var(--h, 50%);
  min-height: 12%;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, var(--color-accent) 0%, rgba(56, 189, 248, 0.35) 100%);
  animation: mockupBar 2.5s ease-in-out infinite alternate;
}

.mockup-bar:nth-child(odd) {
  animation-delay: 0.3s;
}

@keyframes mockupBar {
  from { opacity: 0.7; }
  to { opacity: 1; }
}

.mockup-phone {
  position: absolute;
  right: -0.5rem;
  bottom: -1.25rem;
  z-index: 3;
  width: 5.5rem;
  padding: 0.35rem;
  background: var(--color-surface);
  border: 2px solid var(--color-surface-alt);
  border-radius: 1.25rem;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}

.mockup-phone-notch {
  width: 2rem;
  height: 0.25rem;
  margin: 0 auto 0.35rem;
  background: var(--color-bg);
  border-radius: 999px;
}

.mockup-phone-screen {
  padding: 0.5rem;
  background: var(--color-bg);
  border-radius: 0.75rem;
}

.mockup-phone-screen .mockup-line--title {
  width: 90%;
  height: 0.35rem;
}

.mockup-phone-screen .mockup-line--sub {
  width: 70%;
  height: 0.25rem;
  margin-bottom: 0.5rem;
}

.mockup-phone-card {
  display: block;
  height: 0.65rem;
  margin-bottom: 0.35rem;
  border-radius: 4px;
  background: rgba(56, 189, 248, 0.2);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.mockup-badge {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-alt);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  white-space: nowrap;
  animation: mockupFloat 4s ease-in-out infinite;
}

.mockup-badge--1 {
  top: 12%;
  left: -4%;
}

.mockup-badge--2 {
  bottom: 18%;
  right: -2%;
  animation-delay: 1.5s;
}

.mockup-badge-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  font-size: 0.625rem;
  background: rgba(56, 189, 248, 0.2);
  color: var(--color-accent);
  border-radius: 50%;
}

@keyframes mockupFloat {
  0%,
  100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ==========================================================================
   Services (Cards)
   ========================================================================== */

.services {
  background: linear-gradient(180deg, var(--color-bg) 0%, rgba(30, 41, 59, 0.3) 50%, var(--color-bg) 100%);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-alt);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(56, 189, 248, 0.2);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(56, 189, 248, 0.12);
  border-radius: var(--radius);
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.card-text {
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ==========================================================================
   Benefits
   ========================================================================== */

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.benefit-item {
  text-align: center;
  padding: 1.5rem;
}

.benefit-icon {
  width: 64px;
  height: 64px;
  margin-inline: auto;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 50%;
  color: var(--color-accent);
  transition: transform var(--transition), box-shadow var(--transition);
}

.benefit-item:hover .benefit-icon {
  transform: scale(1.05);
  box-shadow: 0 0 24px var(--color-accent-glow);
}

.benefit-icon svg {
  width: 28px;
  height: 28px;
}

.benefit-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.benefit-text {
  font-size: 0.9375rem;
  max-width: 320px;
  margin-inline: auto;
}

/* ==========================================================================
   Contact & Form
   ========================================================================== */

.contact {
  background: var(--color-surface);
  border-top: 1px solid var(--color-surface-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-details {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-details li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.contact-details a {
  color: var(--color-text);
  font-size: 1rem;
}

.contact-details a:hover {
  color: var(--color-accent);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-surface-alt);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  transition:
    color var(--transition),
    border-color var(--transition),
    background-color var(--transition),
    transform var(--transition);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.social-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(56, 189, 248, 0.08);
  transform: translateY(-2px);
}

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-surface-alt);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2rem);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-alt);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #f87171;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-feedback {
  margin-top: 1rem;
  font-size: 0.9375rem;
  min-height: 1.5rem;
}

.form-feedback.success {
  color: var(--color-whatsapp);
}

.form-feedback.error {
  color: #f87171;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-surface-alt);
  background: var(--color-bg);
}

.footer-inner {
  text-align: center;
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.footer-copy span,
.footer-tagline {
  color: var(--color-text-muted);
}

.footer-tagline {
  font-size: 0.8125rem;
}

/* ==========================================================================
   Mobile nav lock
   ========================================================================== */

body.nav-open {
  overflow: hidden;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: 2;
    max-width: 560px;
    margin-inline: auto;
    width: 100%;
  }

  .hero-mockup {
    padding-bottom: 2rem;
  }

  .mockup-badge--1 {
    left: 0;
  }

  .mockup-badge--2 {
    right: 0;
  }

  .hero-content {
    order: 1;
    text-align: center;
  }

  .hero-subtitle {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

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

  .section-header--left {
    text-align: center;
  }

  .section-header--left .section-desc {
    margin-inline: auto;
  }

  .contact-details,
  .social-links {
    align-items: center;
    text-align: center;
  }

  .contact-details li {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 2rem;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(16px);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition:
      transform var(--transition),
      opacity var(--transition),
      visibility var(--transition);
  }

  .nav-open .nav {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list li {
    border-bottom: 1px solid var(--color-surface-alt);
  }

  .nav-link {
    display: block;
    padding: 1rem 0;
    font-size: 1.125rem;
  }

  .nav-cta {
    margin-top: 1.5rem;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .mockup-badge {
    font-size: 0.625rem;
    padding: 0.4rem 0.6rem;
  }

  .mockup-badge--1 {
    top: 4%;
    left: 2%;
  }

  .mockup-phone {
    width: 4.75rem;
    right: 0.25rem;
    bottom: -0.75rem;
  }
}