/* ============================================================
   Pedro Gandola — Landing page
   Paleta: azul, verde y blanco.
   Modo claro : fondo blanco, azul como color principal, verde de acento.
   Modo oscuro: fondo azul oscuro, blanco y verde para los detalles.
   ============================================================ */

:root {
  /* Marca */
  --blue-900: #0a1f44;
  --blue-800: #0e2a5c;
  --blue-700: #123a7d;
  --blue-600: #1d4ed8;
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --green-500: #10b981;
  --green-400: #34d399;
  --green-300: #6ee7b7;
  --white: #ffffff;

  /* Tema claro (por defecto) */
  --bg: #ffffff;
  --bg-soft: #f4f8fc;
  --surface: #ffffff;
  --border: rgba(13, 42, 92, 0.10);
  --text: #0a1f44;
  --text-muted: #4a5d7e;
  --primary: var(--blue-600);
  --primary-contrast: #ffffff;
  --accent: var(--green-500);
  --accent-soft: rgba(16, 185, 129, 0.12);
  --nav-bg: rgba(255, 255, 255, 0.75);
  --shadow: 0 12px 32px rgba(10, 31, 68, 0.10);
  --blob-blue: rgba(37, 99, 235, 0.16);
  --blob-green: rgba(16, 185, 129, 0.14);

  /* Atardecer: palabra del negocio en el hero */
  --sunset-1: #f59e0b;
  --sunset-2: #f97316;
  --sunset-3: #ec4899;

  --radius: 18px;
  --font-display: "Poppins", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

[data-theme="dark"] {
  /* Colores invertidos: azul oscuro de fondo, blanco y verde para detalles */
  --bg: #081530;
  --bg-soft: #0a1f44;
  --surface: #0e2a5c;
  --border: rgba(255, 255, 255, 0.12);
  --text: #ffffff;
  --text-muted: #b9c6de;
  --primary: var(--green-400);
  --primary-contrast: #081530;
  --accent: var(--green-300);
  --accent-soft: rgba(52, 211, 153, 0.14);
  --nav-bg: rgba(8, 21, 48, 0.75);
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  --blob-blue: rgba(59, 130, 246, 0.18);
  --blob-green: rgba(52, 211, 153, 0.12);

  /* Atardecer más luminoso sobre fondo azul oscuro */
  --sunset-1: #fcd34d;
  --sunset-2: #fb923c;
  --sunset-3: #f472b6;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; }

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

/* ---------- Fondo decorativo ---------- */
.bg-blobs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.blob {
  position: absolute;
  width: 55vmax;
  height: 55vmax;
  border-radius: 50%;
  filter: blur(90px);
}
.blob-blue { background: var(--blob-blue); top: -20vmax; right: -15vmax; }
.blob-green { background: var(--blob-green); bottom: -25vmax; left: -15vmax; }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 5vw, 3rem);
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav__brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; }
.nav__logo-svg { display: block; border-radius: 12px; }
.nav__name { font-family: var(--font-display); font-size: 1.05rem; letter-spacing: 0.02em; }
.nav__name-light { font-weight: 400; color: var(--text-muted); }
.nav__links { display: flex; gap: 1.6rem; font-weight: 500; font-size: 0.95rem; color: var(--text-muted); }
.nav__links a { transition: color 0.2s; }
.nav__links a:hover { color: var(--primary); }
.nav__actions { display: flex; align-items: center; gap: 0.7rem; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.theme-toggle:hover { background: var(--accent-soft); transform: rotate(15deg); }
.theme-toggle svg { width: 20px; height: 20px; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: none; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--sm { padding: 0.55rem 1.1rem; font-size: 0.88rem; }
.btn--primary {
  background: var(--primary);
  color: var(--primary-contrast);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}
[data-theme="dark"] .btn--primary { box-shadow: 0 8px 20px rgba(52, 211, 153, 0.2); }
.btn--ghost { border-color: var(--border); color: var(--text); }
.btn--ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn--whatsapp {
  background: #25d366;
  color: #06301b;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.28);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 6.5rem clamp(1rem, 4vw, 3rem) 4.5rem;
}

/* Panel con video de fondo y sombra fuerte desplazada a un costado,
   como si el hero quisiera salir de la pantalla. */
.hero__panel {
  position: relative;
  width: min(1200px, 100%);
  border-radius: 32px;
  overflow: hidden;
  isolation: isolate;
  background: var(--bg-soft);
  box-shadow:
    26px 26px 0 var(--accent-soft),
    34px 44px 90px rgba(10, 31, 68, 0.35);
}
[data-theme="dark"] .hero__panel {
  box-shadow:
    26px 26px 0 rgba(52, 211, 153, 0.16),
    34px 44px 90px rgba(0, 0, 0, 0.55);
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.94) 0%,
    rgba(255, 255, 255, 0.82) 45%,
    rgba(255, 255, 255, 0.90) 100%);
}
[data-theme="dark"] .hero__overlay {
  background: linear-gradient(180deg,
    rgba(8, 21, 48, 0.92) 0%,
    rgba(8, 21, 48, 0.78) 45%,
    rgba(8, 21, 48, 0.90) 100%);
}
.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: min(760px, 82svh);
  padding: 4rem clamp(1.2rem, 4vw, 4rem);
  overflow: hidden; /* las palabras laterales del carrusel no deben generar scroll */
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}
[data-theme="light"] .hero__eyebrow { color: #0b7a5a; }
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-soft); }
  50% { box-shadow: 0 0 0 7px transparent; }
}
.hero__title {
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 900px;
}
.hero__line { display: block; }
.hero__line--mid {
  font-weight: 600;
  font-size: 0.55em;
  letter-spacing: 0.01em;
  color: var(--text-muted);
  margin-top: 0.15em;
}

/* Acento fijo azul→verde para "IA" */
.ia-accent {
  background: linear-gradient(90deg, var(--blue-500), var(--green-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
[data-theme="dark"] .ia-accent {
  background: linear-gradient(90deg, var(--blue-400), var(--green-300));
  -webkit-background-clip: text;
  background-clip: text;
}

/* Carrusel de negocios: palabra central grande en color atardecer,
   la anterior y la siguiente en gris, pequeñas y con profundidad. */
.biz-carousel {
  position: relative;
  width: min(100%, 980px);
  height: 1.4em;
  margin-top: 0.1em;
  margin-bottom: 0.35em; /* aire para el arco descendente de la rueda */
  font-size: 1.18em; /* un poco más grande que el resto del título */
}
.cw {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  will-change: transform, opacity, filter;
}
.cw__gray {
  color: var(--text-muted);
  opacity: 0.55;
  transition: text-shadow 0.9s ease;
}
/* La palabra central proyecta sombra: parece flotar delante de la pantalla */
.cw--center .cw__gray {
  text-shadow: 0 26px 32px rgba(10, 31, 68, 0.45);
}
[data-theme="dark"] .cw--center .cw__gray {
  text-shadow: 0 26px 36px rgba(0, 0, 0, 0.65);
}
.cw__color {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--sunset-1), var(--sunset-2), var(--sunset-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__subtitle {
  max-width: 620px;
  margin-top: 1.5rem;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
}
.hero__cta { display: flex; gap: 1rem; margin-top: 2.2rem; flex-wrap: wrap; justify-content: center; }
.hero__stack { display: flex; gap: 0.6rem; margin-top: 3rem; flex-wrap: wrap; justify-content: center; }
.chip {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* ---------- Secciones ---------- */
.section { padding: 6rem clamp(1rem, 5vw, 3rem); max-width: 1200px; margin: 0 auto; }
.section__head { text-align: center; max-width: 680px; margin: 0 auto 3.5rem; }
.section__head--tight { margin-bottom: 2rem; }
.section__kicker {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  margin-bottom: 0.8rem;
}
[data-theme="light"] .section__kicker { color: #0b7a5a; }
.section__title { font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 700; letter-spacing: -0.01em; }
.section__desc { margin-top: 1rem; color: var(--text-muted); }

.grid { display: grid; gap: 1.5rem; }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--accent); }

.feature { padding: 2rem 1.7rem; }
.feature__icon {
  display: grid;
  place-items: center;
  width: 52px; height: 52px;
  border-radius: 14px;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(16, 185, 129, 0.12));
  margin-bottom: 1.2rem;
}
.feature h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.feature p { color: var(--text-muted); font-size: 0.95rem; }

/* ---------- Proyectos ---------- */
.project { overflow: hidden; display: flex; flex-direction: column; }
.project__banner {
  height: 150px;
  display: grid;
  place-items: center;
}
.project__banner span {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.85);
}
.project__banner--a { background: linear-gradient(135deg, var(--blue-600), var(--green-500)); }
.project__banner--b { background: linear-gradient(135deg, var(--blue-800), var(--blue-500)); }
.project__banner--c { background: linear-gradient(135deg, var(--green-500), var(--blue-700)); }
.project__body { padding: 1.6rem; }
.project__body h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.project__body p { color: var(--text-muted); font-size: 0.95rem; }
.project__tags { display: flex; gap: 0.45rem; margin-top: 1.1rem; flex-wrap: wrap; }
.tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
[data-theme="light"] .tag { color: #0b7a5a; }

/* ---------- Contacto ---------- */
.section--contact { padding-bottom: 7rem; }
.contact-panel {
  padding: clamp(2rem, 5vw, 4rem);
  text-align: center;
  background:
    radial-gradient(600px 200px at 20% 0%, rgba(37, 99, 235, 0.08), transparent),
    radial-gradient(600px 200px at 80% 100%, rgba(16, 185, 129, 0.08), transparent),
    var(--surface);
}
.contact-panel:hover { transform: none; }
.contact-panel__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.contact-panel__alt { margin-top: 1.8rem; color: var(--text-muted); font-size: 0.9rem; }
.contact-panel__alt a { color: var(--primary); font-weight: 600; }
.contact-panel__alt a:hover { text-decoration: underline; }

/* ---------- Footer ---------- */
.footer {
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--border);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__name { display: none; }
  .biz-carousel { font-size: 1.05em; } /* que la palabra más larga entre en el ancho */
}

/* ---------- Accesibilidad ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}