/* ============================================
   ZUMOPOS - Sistema de Diseño CSS Vanilla
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

/* --- Variables del Sistema --- */
:root {
  /* Paleta de marca */
  --color-primary:       #f38221;
  --color-primary-dark:  #d96e14;
  --color-primary-light: #fdf0e0;
  --color-text:          #4a535c;
  --color-text-light:    #7a8793;
  --color-bg:            #ffffff;
  --color-surface:       #f7f8fa;
  --color-border:        #e8eaed;
  --color-white:         #ffffff;
  --color-dark:          #1e2328;

  /* Tipografía */
  --font-display: 'Outfit', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Espaciado */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Bordes */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --shadow-primary: 0 8px 24px rgba(243,130,33,.30);

  /* Transiciones */
  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

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

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }

/* --- Contenedor central --- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --- Tipografía --- */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; color: var(--color-dark); }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }
p  { font-size: 1rem; color: var(--color-text-light); line-height: 1.7; }

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(243,130,33,.40);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-lg { padding: 18px 36px; font-size: 1.1rem; border-radius: var(--radius-lg); }

/* --- Navbar landing --- */
.navbar-landing {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}
.navbar-landing .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-landing .nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.navbar-landing .nav-logo img { height: 36px; width: auto; }
.navbar-landing .nav-logo span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-dark);
}

/* --- Sección Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #fff9f3 0%, #ffffff 60%, #fff4e8 100%);
  padding-top: 80px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}
.hero h1 { margin-bottom: var(--space-md); }
.hero h1 span { color: var(--color-primary); }
.hero p  { font-size: 1.15rem; margin-bottom: var(--space-xl); max-width: 480px; }
.hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-logo-wrap {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  animation: float 4s ease-in-out infinite;
}
.hero-logo-wrap img { width: 160px; }
.hero-logo-wrap p {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-text-light);
  font-weight: 500;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* --- Sección Dolor --- */
.section-pain {
  padding: var(--space-3xl) 0;
  background: var(--color-dark);
  color: var(--color-white);
}
.section-pain .section-label {
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}
.section-pain h2 { color: var(--color-white); margin-bottom: var(--space-lg); }
.section-pain p  { color: rgba(255,255,255,.65); max-width: 580px; }

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}
.pain-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color var(--transition);
}
.pain-card:hover { border-color: rgba(243,130,33,.4); }
.pain-card .pain-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}
.pain-card h3 { color: var(--color-white); margin-bottom: var(--space-sm); }
.pain-card p  { color: rgba(255,255,255,.55); font-size: .95rem; }

/* --- Sección Solución --- */
.section-solution {
  padding: var(--space-3xl) 0;
  background: var(--color-surface);
}
.section-solution .section-label {
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}
.section-solution h2 { margin-bottom: var(--space-sm); }
.section-solution .intro { max-width: 560px; margin-bottom: var(--space-xl); }

.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.solution-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.solution-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.solution-card .sol-icon {
  width: 48px; height: 48px;
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}
.solution-card h3 { margin-bottom: var(--space-sm); }

/* --- Sección CTA --- */
.section-cta {
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, #e8720e 100%);
  text-align: center;
}
.section-cta h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}
.section-cta p {
  color: rgba(255,255,255,.80);
  font-size: 1.1rem;
  max-width: 480px;
  margin: 0 auto var(--space-xl);
}
.btn-cta {
  background: var(--color-white);
  color: var(--color-primary);
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
}
.btn-cta:hover {
  background: #fff9f3;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,.20);
}

/* --- Overlay Offline --- */
.overlay-offline {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(30,35,40,.92);
  backdrop-filter: blur(8px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  text-align: center;
  gap: var(--space-md);
}
.overlay-offline.visible { display: flex; }
.overlay-offline h2 { color: var(--color-primary); font-family: var(--font-display); }
.overlay-offline p  { color: rgba(255,255,255,.7); }

/* --- Footer landing --- */
.footer-landing {
  padding: var(--space-xl) 0;
  background: var(--color-dark);
  text-align: center;
}
.footer-landing p {
  color: rgba(255,255,255,.35);
  font-size: .875rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero-inner      { grid-template-columns: 1fr; text-align: center; }
  .hero-actions    { justify-content: center; }
  .hero-visual     { display: none; }
  .pain-grid       { grid-template-columns: 1fr; }
  .solution-grid   { grid-template-columns: 1fr; }
  .hero p          { margin-left: auto; margin-right: auto; }
}