/* ============================================================
   Metria — Landing pública (estático, sin Blazor/MudBlazor)
   Identidad Field Pro: off-white + warm-dark + acento ámbar.
   Minimalismo elevación-0 (bordes, no sombras). Inter.
   ============================================================ */

:root {
  --bg:        #f0eeeb;
  --paper:     #faf9f7;
  --surface:   #ffffff;
  --border:    #dddad6;
  --border2:   #c8c4be;
  --text:      #1c1917;
  --text2:     #57534e;
  --text3:     #a8a29e;
  --dark:      #1c1917;
  --dark2:     #292524;
  --d-text:    #d6d3d1;
  --d-text2:   #a8a29e;
  --d-line:    rgba(255,255,255,.08);
  --accent:    #fbbf24;
  --accent-h:  #f59e0b;
  --blue:      #1d4ed8;  --blue-bg:  #eff6ff;
  --green:     #15803d;  --green-bg: #f0fdf4;
  --amber:     #b45309;  --amber-bg: #fffbeb;
  --red:       #b91c1c;  --red-bg:   #fef2f2;

  --r-sm: 6px; --r-md: 10px; --r-lg: 14px;
  --maxw: 1140px;
  --nav-h: 60px;
}

/* Dark mode opcional */
[data-theme="dark"] {
  --bg:      #12100f;
  --paper:   #1c1917;
  --surface: #1c1917;
  --border:  #2c2825;
  --border2: #3a3531;
  --text:    #f5f5f4;
  --text2:   #d6d3d1;
  --text3:   #a8a29e;
  --dark:    #0c0a09;
  --dark2:   #1c1917;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 11.5px; font-weight: 600; letter-spacing: .8px;
  text-transform: uppercase; color: var(--text2);
  background: var(--surface); border: 1px solid var(--border);
  padding: 5px 11px; border-radius: 20px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-size: 14px; font-weight: 600;
  padding: 10px 18px; border-radius: var(--r-sm);
  border: 1px solid transparent; cursor: pointer;
  transition: background .12s, color .12s, border-color .12s, transform .12s;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary  { background: var(--accent); color: var(--dark); border-color: var(--accent); }
.btn-primary:hover  { background: var(--accent-h); border-color: var(--accent-h); }
.btn-dark     { background: var(--dark); color: #fff; border-color: var(--dark); }
.btn-dark:hover     { background: var(--dark2); }
.btn-ghost    { background: transparent; color: var(--text); border-color: var(--border2); }
.btn-ghost:hover    { background: var(--surface); border-color: var(--text3); }
.btn-lg { padding: 13px 24px; font-size: 15px; }
.btn-block { width: 100%; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; gap: 20px; }

.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 7px;
  background: var(--accent); color: var(--dark);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 17px; letter-spacing: -1px; flex-shrink: 0;
}
.brand-name { font-size: 18px; font-weight: 700; letter-spacing: -.4px; }

.nav-links { display: flex; align-items: center; gap: 4px; margin-left: 14px; }
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--text2);
  padding: 7px 12px; border-radius: var(--r-sm); transition: background .12s, color .12s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }

.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.nav-actions .btn { padding: 8px 15px; }
.nav-login { font-size: 14px; font-weight: 600; color: var(--text); padding: 8px 12px;
  border-radius: var(--r-sm); }
.nav-login:hover { background: var(--surface); }

.nav-toggle { display: none; background: none; border: 1px solid var(--border2);
  border-radius: var(--r-sm); padding: 7px; cursor: pointer; color: var(--text); }
.nav-toggle svg { width: 20px; height: 20px; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 52px; align-items: center; }
.hero h1 {
  font-size: clamp(34px, 4.4vw, 52px); font-weight: 700;
  letter-spacing: -1.5px; line-height: 1.05; margin: 20px 0 18px;
}
.hero h1 .hl { color: var(--accent-h); }
.hero .lead { font-size: 17px; color: var(--text2); max-width: 30em; margin-bottom: 28px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin-top: 20px; font-size: 13px; color: var(--text3); display: flex; align-items: center; gap: 8px; }
.hero-note svg { width: 15px; height: 15px; color: var(--green); }

/* App preview mock (HTML/CSS puro) */
.preview {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); overflow: hidden;
  transform: perspective(1400px) rotateY(-3deg) rotateX(1deg);
}
.pv-bar { display: flex; align-items: center; gap: 6px; padding: 11px 14px;
  border-bottom: 1px solid var(--border); background: var(--paper); }
.pv-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border2); }
.pv-title { margin-left: 8px; font-size: 12px; font-weight: 600; color: var(--text2); }
.pv-tag { margin-left: auto; font-size: 10.5px; font-weight: 600; color: var(--accent-h);
  background: var(--amber-bg); padding: 2px 8px; border-radius: 20px; }
.pv-body { padding: 14px; }

.pv-rowhead, .pv-row { display: grid; grid-template-columns: 1fr 58px 62px; gap: 8px;
  align-items: center; padding: 8px 10px; font-size: 12px; }
.pv-rowhead { color: var(--text3); font-size: 10.5px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .5px; border-bottom: 1px solid var(--border); }
.pv-row { border-bottom: 1px solid var(--border); }
.pv-row:last-child { border-bottom: none; }
.pv-row .nm { color: var(--text); font-weight: 500; }
.pv-row .sub { color: var(--text3); font-size: 10.5px; font-weight: 400; }
.pv-row .num { text-align: right; color: var(--text2); font-variant-numeric: tabular-nums; }
.pv-row .u   { text-align: right; color: var(--text3); }

.pv-foot { margin-top: 12px; border-top: 1px dashed var(--border2); padding-top: 12px;
  display: flex; flex-direction: column; gap: 8px; }
.pv-line { display: flex; align-items: center; justify-content: space-between; font-size: 12px; }
.pv-line .l { color: var(--text2); display: flex; align-items: center; gap: 7px; }
.pv-line .l .ic { width: 22px; height: 22px; border-radius: 6px; display: flex;
  align-items: center; justify-content: center; font-size: 11px; }
.pv-line .v { font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }
.pv-total { background: var(--dark); color: #fff; border-radius: var(--r-md);
  padding: 11px 13px; display: flex; align-items: center; justify-content: space-between;
  margin-top: 4px; }
.pv-total .tl { font-size: 11.5px; color: var(--d-text2); }
.pv-total .tv { font-size: 17px; font-weight: 700; letter-spacing: -.3px; }
.pv-total .tv .ac { color: var(--accent); }

.chip { font-size: 10.5px; font-weight: 600; padding: 2px 8px; border-radius: 20px; }
.chip-green { background: var(--green-bg); color: var(--green); }
.chip-blue  { background: var(--blue-bg);  color: var(--blue); }
.ic-green { background: var(--green-bg); } .ic-blue { background: var(--blue-bg); }
.ic-amber { background: var(--amber-bg); }

/* ---------- Franja de público ---------- */
.audience { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: var(--paper); padding: 22px 0; }
.audience-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 26px;
  justify-content: center; text-align: center; }
.audience .who { font-size: 14px; color: var(--text2); }
.audience .who strong { color: var(--text); font-weight: 600; }
.audience .sep { width: 4px; height: 4px; border-radius: 50%; background: var(--border2); }

/* ---------- Secciones ---------- */
.section { padding: 76px 0; }
.section-dark { background: var(--dark); color: var(--d-text); }
.sec-head { max-width: 42em; margin: 0 auto 44px; text-align: center; }
.sec-head.left { margin-left: 0; text-align: left; }
.sec-head h2 { font-size: clamp(26px, 3vw, 34px); font-weight: 700; letter-spacing: -.8px;
  color: var(--text); margin: 14px 0 12px; }
.section-dark .sec-head h2 { color: #fff; }
.sec-head p { font-size: 16px; color: var(--text2); }
.section-dark .sec-head p { color: var(--d-text2); }
.section-dark .eyebrow { background: rgba(255,255,255,.05); border-color: var(--d-line); color: var(--d-text2); }

/* Pilares */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pillar { background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 26px 24px; }
.pillar .pico { width: 42px; height: 42px; border-radius: var(--r-md);
  background: var(--amber-bg); color: var(--accent-h);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.pillar .pico svg { width: 22px; height: 22px; }
.pillar h3 { font-size: 17px; font-weight: 650; margin-bottom: 8px; letter-spacing: -.3px; }
.pillar p { font-size: 14px; color: var(--text2); }
.pillar .tag { display: inline-block; margin-top: 14px; font-size: 11px; font-weight: 600;
  color: var(--green); background: var(--green-bg); padding: 3px 9px; border-radius: 20px; }

/* Flujo Cómo funciona */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { position: relative; background: rgba(255,255,255,.03); border: 1px solid var(--d-line);
  border-radius: var(--r-md); padding: 22px 20px; }
.step .num { font-size: 12px; font-weight: 700; color: var(--dark);
  background: var(--accent); width: 26px; height: 26px; border-radius: 7px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.step h3 { font-size: 16px; font-weight: 650; color: #fff; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--d-text2); }
.step .arrow { position: absolute; right: -11px; top: 50%; transform: translateY(-50%);
  color: var(--accent); z-index: 2; }
.step .arrow svg { width: 18px; height: 18px; }
.step:last-child .arrow { display: none; }

/* Confianza */
.trust { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.trust-item { display: flex; gap: 14px; align-items: flex-start;
  padding: 22px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); }
.trust-item .tic { flex-shrink: 0; width: 38px; height: 38px; border-radius: var(--r-md);
  background: var(--dark); color: var(--accent); display: flex; align-items: center; justify-content: center; }
.trust-item .tic svg { width: 19px; height: 19px; }
.trust-item h3 { font-size: 15px; font-weight: 650; margin-bottom: 4px; }
.trust-item p { font-size: 13.5px; color: var(--text2); }

/* Roadmap */
.roadmap { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.rm-item { display: flex; gap: 12px; align-items: flex-start;
  padding: 18px 20px; border: 1px dashed var(--border2); border-radius: var(--r-md); background: var(--paper); }
.rm-item .rmic { flex-shrink: 0; color: var(--text3); }
.rm-item .rmic svg { width: 20px; height: 20px; }
.rm-item h3 { font-size: 14.5px; font-weight: 600; margin-bottom: 3px; display: flex; align-items: center; gap: 8px; }
.rm-badge { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px;
  color: var(--text3); background: var(--surface); border: 1px solid var(--border);
  padding: 1px 7px; border-radius: 20px; }
.rm-item p { font-size: 13px; color: var(--text2); }

/* CTA final */
.cta-final { background: var(--dark); color: #fff; border-radius: var(--r-lg);
  padding: 52px 44px; text-align: center; }
.cta-final h2 { font-size: clamp(26px, 3.2vw, 36px); font-weight: 700; letter-spacing: -.8px; margin-bottom: 12px; }
.cta-final p { font-size: 16px; color: var(--d-text2); max-width: 34em; margin: 0 auto 26px; }
.cta-final .hero-cta { justify-content: center; }

/* Footer */
.footer { background: var(--dark); color: var(--d-text2); border-top: 1px solid var(--d-line);
  padding: 40px 0 32px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; }
.footer .brand-name { color: #fff; }
.footer .brand-mark { font-size: 15px; width: 28px; height: 28px; }
.footer-tag { font-size: 13px; color: var(--d-text2); margin-top: 6px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { font-size: 13.5px; color: var(--d-text2); transition: color .12s; }
.footer-links a:hover { color: #fff; }
.footer-copy { width: 100%; border-top: 1px solid var(--d-line); margin-top: 28px; padding-top: 20px;
  font-size: 12.5px; color: var(--d-text2); display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: space-between; }

/* Toggle de tema */
.theme-toggle { background: none; border: 1px solid var(--border2); border-radius: var(--r-sm);
  width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--text2); }
.theme-toggle:hover { background: var(--surface); color: var(--text); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-dark { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-dark { display: block; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .preview { transform: none; max-width: 480px; }
  .flow { grid-template-columns: 1fr 1fr; }
  .step .arrow { display: none; }
  .pillars, .trust { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-links, .nav-actions .btn-desktop { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: var(--paper); border-bottom: 1px solid var(--border);
    padding: 12px 16px; gap: 2px; margin: 0;
  }
  .nav.open .nav-links a { padding: 12px; font-size: 15px; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 56px 0; }
  .flow { grid-template-columns: 1fr; }
  .cta-final { padding: 40px 24px; }
  .hero-cta .btn, .cta-final .btn { flex: 1; }
}