/* ─────────────────────────────────────────────────────────────────────────
   IngePresupuestos — Landing page
   Paleta y tipografía espejo de la app desktop (Inter + slate + naranja).
   ──────────────────────────────────────────────────────────────────────── */

/* ============ Variables ============ */
:root {
  --orange:        #F37329;
  --orange-dark:   #C0621A;
  --orange-soft:   #FEF5EB;

  --slate-900:     #1A2434;
  --slate-700:     #273445;
  --slate-500:     #485A6C;
  --slate-300:     #667885;
  --slate-100:     #B8C9D6;

  --silver-100:    #F8F9FA;
  --silver-200:    #F0F1F2;
  --silver-300:    #D4D4D4;
  --silver-400:    #BFBFBF;

  --white:         #FFFFFF;
  --green:         #68B723;

  --max-width:     1180px;
  --max-narrow:    760px;
  --radius:        10px;
  --radius-sm:     6px;
  --shadow-sm:     0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md:     0 8px 24px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-lg:     0 20px 50px rgba(15, 23, 42, 0.12), 0 8px 16px rgba(15, 23, 42, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--slate-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--orange); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--orange-dark); }

ul { list-style: none; }

code {
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  font-size: 0.92em;
  background: var(--silver-100);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--slate-700);
}

/* ============ Layout helpers ============ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--max-narrow);
}

/* ============ Botones ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}
.btn-primary:hover {
  background: var(--orange-dark);
  border-color: var(--orange-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--slate-700);
  border-color: var(--silver-300);
}
.btn-ghost:hover {
  background: var(--orange-soft);
  border-color: var(--orange);
  color: var(--orange-dark);
}

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 15px; }

/* ============ Navegación ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(212, 212, 212, 0.5);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--slate-700);
  font-weight: 700;
  font-size: 17px;
}
.nav-brand:hover { color: var(--slate-700); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--slate-500);
  font-size: 14px;
  font-weight: 500;
}
.nav-links a:not(.btn):hover { color: var(--slate-700); }

@media (max-width: 760px) {
  .nav-links a:not(.btn) { display: none; }
}

/* ============ Badge / Pill ============ */
.badge {
  display: inline-block;
  background: var(--orange-soft);
  color: var(--orange-dark);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.2px;
}

/* ============ Hero ============ */
.hero {
  padding: 80px 0 100px;
  background:
    radial-gradient(circle at 10% 0%, rgba(243, 115, 41, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 100%, rgba(39, 52, 69, 0.05) 0%, transparent 50%),
    var(--white);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.1;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-text h1 .accent { color: var(--orange); }

.hero-sub {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--slate-500);
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.hero-version {
  font-size: 13px;
  color: var(--slate-300);
  margin-top: 16px;
}
#latest-version { font-weight: 600; color: var(--slate-500); }

/* Mockup del screenshot */
.hero-screenshot {
  position: relative;
}
.screenshot-frame {
  background: var(--silver-100);
  border: 1px solid var(--silver-300);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: perspective(1200px) rotateY(-3deg) rotateX(2deg);
  transition: transform 0.4s ease;
}
.screenshot-frame:hover {
  transform: perspective(1200px) rotateY(0deg) rotateX(0deg);
}
.screenshot-toolbar {
  background: var(--slate-700);
  padding: 10px 14px;
  display: flex;
  gap: 6px;
}
.screenshot-toolbar span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--silver-300);
}
.screenshot-toolbar span:first-child { background: #FF5F57; }
.screenshot-toolbar span:nth-child(2) { background: #FEBC2E; }
.screenshot-toolbar span:nth-child(3) { background: #28C840; }
.screenshot-placeholder {
  aspect-ratio: 16 / 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    linear-gradient(135deg, var(--white) 0%, var(--silver-100) 100%);
  padding: 40px;
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 50px; }
  .screenshot-frame { transform: none; }
}

/* ============ Sections ============ */
.section {
  padding: 90px 0;
}
.section-light {
  background: var(--silver-100);
}
.section-orange {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: var(--white);
}
.section-orange .section-head h2 { color: var(--white); }
.section-orange .section-head p { color: rgba(255, 255, 255, 0.9); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-head p {
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--slate-500);
}

/* ============ Features grid ============ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--silver-300);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.2s ease;
}
.feature-card:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  font-size: 32px;
  margin-bottom: 14px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--slate-500);
  line-height: 1.6;
}

/* ============ Importadores ============ */
.importers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.importer-card {
  background: var(--white);
  border: 1px solid var(--silver-300);
  border-radius: var(--radius);
  padding: 24px;
}
.importer-card h3 {
  font-size: 17px;
  color: var(--slate-900);
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--orange-soft);
}
.importer-card ul li {
  font-size: 13.5px;
  color: var(--slate-500);
  padding: 4px 0;
  line-height: 1.5;
}
.importer-card code {
  background: var(--orange-soft);
  color: var(--orange-dark);
}

/* ============ Descargas ============ */
.downloads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 380px));
  gap: 24px;
  justify-content: center;
  margin-bottom: 32px;
}
.download-card {
  background: var(--white);
  color: var(--slate-700);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}
.download-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: var(--slate-700);
}
.download-icon {
  font-size: 48px;
  margin-bottom: 12px;
}
.download-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 8px;
}
.download-format {
  font-size: 15px;
  color: var(--slate-700);
  margin-bottom: 4px;
  font-weight: 600;
}
.download-format code {
  background: var(--orange-soft);
  color: var(--orange-dark);
}
.download-subtext {
  font-size: 13px;
  color: var(--slate-300);
  margin-bottom: 20px;
}
.download-btn {
  display: inline-block;
  background: var(--orange);
  color: var(--white);
  padding: 10px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
}
.downloads-alt {
  text-align: center;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 20px;
}
.downloads-alt a {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.downloads-alt a:hover { color: var(--orange-soft); }

/* ============ Pricing ============ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--white);
  border: 1px solid var(--silver-300);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: all 0.2s ease;
}
.pricing-featured {
  border-color: var(--orange);
  border-width: 2px;
  box-shadow: var(--shadow-md);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--orange);
  color: var(--white);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.pricing-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 14px;
}
.price {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--silver-300);
}
.price-amount {
  font-size: 36px;
  font-weight: 800;
  color: var(--slate-900);
}
.price-amount em {
  font-style: normal;
  color: var(--slate-300);
}
.price-period {
  display: block;
  font-size: 13px;
  color: var(--slate-300);
  margin-top: 2px;
}
.pricing-features {
  margin-bottom: 28px;
}
.pricing-features li {
  font-size: 14px;
  color: var(--slate-500);
  padding: 6px 0;
  line-height: 1.5;
}
.pricing-features li.muted {
  color: var(--slate-300);
  font-size: 12.5px;
  font-style: italic;
  padding-top: 12px;
  border-top: 1px dashed var(--silver-300);
  margin-top: 8px;
}
.pricing-card .btn {
  width: 100%;
  justify-content: center;
}
.pricing-note {
  text-align: center;
  margin-top: 30px;
  color: var(--slate-300);
  font-size: 13px;
  font-style: italic;
}

/* ============ FAQ ============ */
.faq-list {
  display: grid;
  gap: 12px;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--silver-300);
  border-radius: var(--radius-sm);
  padding: 0;
  transition: all 0.15s ease;
}
.faq-item[open] {
  border-color: var(--orange);
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 600;
  font-size: 15px;
  color: var(--slate-700);
  list-style: none;
  position: relative;
  padding-right: 50px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 300;
  color: var(--orange);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after {
  content: "−";
}
.faq-item p {
  padding: 0 22px 20px;
  color: var(--slate-500);
  font-size: 14.5px;
  line-height: 1.65;
}
.faq-item p strong { color: var(--slate-700); }

/* ============ Footer ============ */
.footer {
  background: var(--slate-900);
  color: var(--slate-100);
  padding: 70px 0 40px;
  font-size: 14px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 50px;
}
@media (max-width: 760px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-brand strong {
  color: var(--white);
  font-size: 17px;
}
.footer-col p {
  color: var(--slate-300);
  line-height: 1.6;
  margin-bottom: 12px;
}
.footer-col h4 {
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.footer-col ul li {
  padding: 4px 0;
}
.footer-col ul li a {
  color: var(--slate-100);
  font-size: 13.5px;
}
.footer-col ul li a:hover {
  color: var(--orange);
}
.footer-copy {
  font-size: 12px;
  color: var(--slate-300);
  margin-top: 20px;
}

/* ============ Print friendly ============ */
@media print {
  .nav, .hero-ctas, .download-card, .footer { display: none; }
  body { color: black; }
}