/* ================================================================
   PYDETEC LANDING — styles.css
   Mobile-first. Breakpoint único: 720px.
   ================================================================

   VARIABLES DEL CLIENTE
   ──────────────────────
   Para adaptar este sitio a otro cliente, modificar solo
   este bloque :root. No es necesario tocar el resto del CSS.
   ================================================================ */

:root {
  /* Colores principales — Identidad PYDETEC */
  --color-brand:        #7C3AED;   /* Púrpura principal */
  --color-brand-dark:   #6D28D9;   /* Hover púrpura */
  --color-brand-light:  #2D1B69;   /* Fondos suaves púrpura */

  /* Acento verde lima — logo "TEC" */
  --color-accent:       #84CC16;
  --color-accent-dark:  #65A30D;
  --color-accent-glow:  rgba(132, 204, 22, 0.25);

  /* Colores de WhatsApp (no cambiar) */
  --color-whatsapp:     #25D366;
  --color-whatsapp-dark:#1DA851;

  /* Fondos oscuros */
  --color-bg:           #0D0A1F;   /* Fondo principal — del logo */
  --color-bg-alt:       #13102A;   /* Secciones alternadas */
  --color-bg-card:      #1A1635;   /* Cards / elementos elevados */
  --color-bg-footer:    #080614;   /* Footer — el más oscuro */

  /* Texto */
  --color-text:         #F1F0F9;   /* Texto principal */
  --color-text-soft:    #9CA3B8;   /* Texto secundario */

  /* Bordes */
  --color-border:       #2A2550;   /* Bordes sutiles oscuros */
  --color-border-bright:#3D3570;   /* Bordes en hover */

  /* Tipografía */
  --font-base: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --text-sm:   0.875rem;  /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg:   1.125rem;  /* 18px */
  --text-xl:   1.25rem;   /* 20px */
  --text-2xl:  1.5rem;    /* 24px */
  --text-3xl:  1.875rem;  /* 30px */
  --text-4xl:  2.25rem;   /* 36px */
  --text-5xl:  3rem;      /* 48px */

  /* Espaciado */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1100px;
  --container-px:  var(--space-6);
  --radius:        0.75rem;
  --radius-sm:     0.375rem;

  /* Sombras oscuras con color de marca */
  --shadow-sm:    0 1px 3px rgba(0,0,0,0.4);
  --shadow:       0 4px 12px rgba(0,0,0,0.35);
  --shadow-md:    0 10px 30px rgba(0,0,0,0.45);
  --shadow-brand: 0 8px 24px rgba(124, 58, 237, 0.3);
  --shadow-accent:0 8px 24px rgba(132, 204, 22, 0.25);

  /* Transiciones */
  --transition: 200ms ease;
}


/* ================================================================
   RESET & BASE
================================================================ */

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

html {
  scroll-behavior: smooth;
}

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

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

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

ul, ol {
  list-style: none;
}


/* ================================================================
   UTILIDADES
================================================================ */

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

.section {
  padding-block: var(--space-16);
}

/* Secciones con fondo alternado */
.problems,
.how-we-work {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: var(--space-3);
  text-align: center;
  color: var(--color-text);
}

.section-subtitle {
  color: var(--color-text-soft);
  text-align: center;
  max-width: 540px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

/* Eyebrow en verde lima — acento principal */
.section-eyebrow {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}


/* ================================================================
   ÍCONOS
================================================================ */

.icon {
  width: 1.25em;
  height: 1.25em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* El ícono de WhatsApp usa fill, no stroke */
.btn-whatsapp .icon {
  fill: currentColor;
  stroke: none;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-brand-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  border: 1px solid rgba(124, 58, 237, 0.3);
}

.card-icon .icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}


/* ================================================================
   BOTONES
================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--text-base);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  border: none;
}

.btn:hover {
  transform: translateY(-1px);
}

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

/* WhatsApp — CTA principal, verde lima en modo oscuro */
.btn-whatsapp {
  background: var(--color-accent);
  color: #0D0A1F;   /* Texto oscuro sobre verde lima */
  font-weight: 700;
  box-shadow: var(--shadow-accent);
}

.btn-whatsapp:hover {
  background: var(--color-accent-dark);
  box-shadow: 0 8px 28px rgba(132, 204, 22, 0.4);
}

/* Botón grande */
.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--text-lg);
  border-radius: var(--radius);
}

/* Outline (secundario) — púrpura */
.btn-outline {
  background: transparent;
  color: var(--color-brand);
  border: 2px solid var(--color-brand);
}

.btn-outline:hover {
  background: var(--color-brand-light);
  border-color: var(--color-brand-dark);
}

/* Email */
.btn-email {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn-email:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}


/* ================================================================
   LOGO tipográfico
   PYDE = púrpura / TEC = verde lima
================================================================ */

.logo {
  font-size: var(--text-xl);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.logo-py {
  color: var(--color-brand);
}

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


/* ================================================================
   HEADER
================================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 10, 31, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.header-cta {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}


/* ================================================================
   HERO
================================================================ */

.hero {
  /* Gradiente oscuro con toque de púrpura — coherente con el logo */
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 58, 237, 0.2) 0%, transparent 70%),
    var(--color-bg);
  padding-block: var(--space-20);
}

.hero-inner {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.hero-eyebrow {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.hero-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-soft);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

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


/* ================================================================
   CARDS (compartido entre secciones)
================================================================ */

.cards-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-6);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-brand);
  transform: translateY(-2px);
}

.card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.card p {
  color: var(--color-text-soft);
  line-height: 1.65;
}


/* ================================================================
   SERVICIOS
================================================================ */

.services-grid {
  margin-bottom: var(--space-8);
}

.services-also {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);  /* Acento verde lima */
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-6);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-soft);
}

.services-also strong {
  color: var(--color-accent);
}


/* ================================================================
   CÓMO TRABAJAMOS — PASOS
================================================================ */

.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  position: relative;
}

.step {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

/* Números en verde lima con opacidad — decorativos */
.step-number {
  font-size: var(--text-4xl);
  font-weight: 900;
  color: var(--color-accent);
  opacity: 0.25;
  line-height: 1;
  flex-shrink: 0;
  min-width: 3rem;
}

.step-content h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.step-content p {
  color: var(--color-text-soft);
  line-height: 1.65;
}


/* ================================================================
   PYDE MARKET
   Gradiente oscuro con púrpura profundo — diferente del hero
================================================================ */

.pyde-market {
  background:
    radial-gradient(ellipse 70% 80% at 80% 50%, rgba(124, 58, 237, 0.25) 0%, transparent 70%),
    linear-gradient(160deg, #110D2B 0%, #0D0A1F 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.pyde-market-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.pyde-market-text .section-eyebrow {
  color: var(--color-accent);
}

.pyde-market-text h2 {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.pyde-market-text p {
  color: var(--color-text-soft);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  max-width: 480px;
}

.pyde-market .btn-outline {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.pyde-market .btn-outline:hover {
  background: rgba(132, 204, 22, 0.1);
  border-color: var(--color-accent);
}

/* Mockup de browser */
.browser-mockup {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.browser-bar {
  background: rgba(0,0,0,0.35);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border-bright);
}

.browser-url {
  font-size: var(--text-sm);
  color: var(--color-text-soft);
  margin-left: var(--space-3);
}

.browser-content {
  padding: var(--space-6);
}

.mockup-line {
  height: 12px;
  background: var(--color-border);
  border-radius: 6px;
  margin-bottom: var(--space-3);
}

.mockup-line--title {
  width: 60%;
  height: 18px;
  background: var(--color-border-bright);
}

.mockup-line--short {
  width: 40%;
}

.mockup-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.mockup-card {
  height: 60px;
  background: var(--color-brand-light);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(124, 58, 237, 0.2);
}


/* ================================================================
   CTA FINAL
================================================================ */

.cta-final {
  text-align: center;
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(132, 204, 22, 0.08) 0%, transparent 70%),
    var(--color-bg-alt);
}

.cta-final-inner {
  max-width: 600px;
  margin-inline: auto;
}

.cta-final h2 {
  font-size: var(--text-2xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.cta-final p {
  color: var(--color-text-soft);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}


/* ================================================================
   FOOTER
================================================================ */

.site-footer {
  background: var(--color-bg-footer);
  color: rgba(241, 240, 249, 0.4);
  padding-block: var(--space-12);
  border-top: 1px solid var(--color-border);
}

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

.footer-brand {
  font-size: var(--text-xl);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

/* En el footer: PYDE púrpura / TEC verde lima — igual que el logo */
.footer-brand .logo-py   { color: var(--color-brand); }
.footer-brand .logo-detec { color: var(--color-accent); }

.footer-tagline {
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  color: rgba(241, 240, 249, 0.4);
}

.footer-copy {
  font-size: var(--text-sm);
  opacity: 0.35;
}


/* ================================================================
   RESPONSIVE — BREAKPOINT ÚNICO 720px
================================================================ */

@media (min-width: 720px) {

  /* Tipografía más grande en desktop */
  .hero-title {
    font-size: var(--text-5xl);
  }

  .section-title {
    font-size: var(--text-3xl);
  }

  /* Cards en 3 columnas */
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Pasos en fila */
  .steps {
    flex-direction: row;
    gap: var(--space-8);
  }

  .step {
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
  }

  /* PYDE Market: lado a lado */
  .pyde-market-inner {
    flex-direction: row;
    align-items: center;
  }

  .pyde-market-text {
    flex: 1;
  }

  .pyde-market-visual {
    flex: 1;
  }

  /* CTA botones en fila */
  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }

}


/* ================================================================
   CORRECCIONES — logo header, logo footer, services-also
================================================================ */

/* Logo en header */
.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 36px;
  width: auto;
  display: block;
}

/* Servicios secundarios — tamaño aumentado */
.services-also {
  font-size: var(--text-base) !important;
  font-weight: 500;
  padding: var(--space-6) var(--space-8);
}

.services-also p {
  font-size: var(--text-base);
  line-height: 1.8;
}

/* Logo en footer */
.footer-logo {
  margin-bottom: var(--space-6);
}

.footer-logo img {
  height: 44px;
  width: auto;
  display: block;
  margin-inline: auto;
}