/* ============================================================
   Ahorro Inteligente — flareconnec.com
   Main Stylesheet
   ============================================================ */

/* --- Variables -------------------------------------------- */
:root {
  --color-primary:    #2563eb;
  --color-secondary:  #10b981;
  --color-bg:         #0f172a;
  --color-bg-card:    #1e293b;
  --color-text:       #f8fafc;
  --color-text-muted: rgba(248, 250, 252, 0.65);
  --color-accent:     #f59e0b;
  --color-border:     rgba(248, 250, 252, 0.1);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --transition: 0.3s ease;
  --max-width:  1200px;
}

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

/* --- Base -------------------------------------------------- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* --- Container --------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* --- Header / Nav ------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-nav {
  display: flex;
  align-items: center;
  height: 64px;
}

.nav-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: color var(--transition);
}

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

/* --- Hero -------------------------------------------------- */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: 4rem;

  /* subtle radial glow */
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(37, 99, 235, 0.25), transparent),
    var(--color-bg);
}

.hero__inner {
  max-width: 720px;
  width: 100%;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero__subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

/* --- Formulario -------------------------------------------- */
.hero-form {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.4),
    0 20px 40px -12px rgba(37, 99, 235, 0.15);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

.hero-form label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
  display: block;
}

.hero-form input[type="email"],
.hero-form select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(248, 250, 252, 0.07);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  appearance: none;
}

.hero-form input[type="email"]::placeholder {
  color: rgba(248, 250, 252, 0.3);
}

.hero-form select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f8fafc' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.5rem;
}

.hero-form select option {
  background-color: #1e293b;
  color: var(--color-text);
}

.hero-form input:focus,
.hero-form select:focus {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
}

.btn-cta {
  display: block;
  width: 100%;
  padding: 0.9rem 1.5rem;
  margin-top: 0.5rem;
  background-color: var(--color-secondary);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition);
  letter-spacing: 0.01em;
}

.btn-cta:hover {
  background-color: #059669;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
}

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

/* --- Sección Verticales ------------------------------------ */
.verticales {
  padding-block: 5rem;
}

.verticales__header {
  text-align: center;
  margin-bottom: 3rem;
}

.verticales__header h2 {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.verticales__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* --- Cards ------------------------------------------------- */
.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.5);
  border-color: var(--color-primary);
}

.card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* --- Footer ------------------------------------------------ */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: 2rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

/* --- Responsive -------------------------------------------- */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .hero-form {
    padding: 1.5rem;
  }

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

  .verticales {
    padding-block: 3.5rem;
  }

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