/* =========================================================
   SYMSI — landing · estilos
   Paleta de marca: #181415 tinta · #f9f9f9 fondo · verdes #c9e2cf / #99cba5 / #6ab57b
   ========================================================= */

:root {
  --bg: #f9f9f9;
  --ink: #181415;
  --ink-soft: #4b4a4a;
  --mute: #7a7877;
  --green: #6ab57b;
  --green-2: #99cba5;
  --green-3: #c9e2cf;
  --green-deep: #3e8a50;
  --line: rgba(24, 20, 21, 0.10);
  --glass: rgba(255, 255, 255, 0.55);
  --glass-solid: rgba(255, 255, 255, 0.86);
  --red: #d9534f;
  --amber: #e2a03f;

  --font-display: "Manrope", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --radius: 22px;
  --radius-sm: 12px;
  --container: 1160px;
  --nav-h: 72px;
}

/* ---------- reset mínimo ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; border-radius: 6px; }

.container { width: min(var(--container), 100% - 2.5rem); margin-inline: auto; }

/* ---------- fondo mesh ---------- */
.mesh {
  position: fixed; inset: -20%; z-index: -1; pointer-events: none;
  /* sin filter: blur() — los radiales ya son suaves y así no cuesta GPU en cada frame */
  background:
    radial-gradient(ellipse 55% 45% at 18% 22%, rgba(201, 226, 207, 0.95) 0%, rgba(201, 226, 207, 0) 70%),
    radial-gradient(ellipse 50% 40% at 84% 30%, rgba(153, 203, 165, 0.65) 0%, rgba(153, 203, 165, 0) 70%),
    radial-gradient(ellipse 60% 40% at 55% 95%, rgba(106, 181, 123, 0.30) 0%, rgba(106, 181, 123, 0) 70%);
  animation: meshDrift 32s ease-in-out infinite;
  will-change: transform;
}
@keyframes meshDrift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(3%, -2%, 0) scale(1.12); }
}

/* ---------- tipografía ---------- */
.eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--green-deep); margin-bottom: 0.9rem;
}
.h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 700; line-height: 1.12;
  letter-spacing: -0.02em; text-wrap: balance;
}
.lead { color: var(--ink-soft); font-size: 1.08rem; margin-top: 1rem; max-width: 60ch; }
.section-head { max-width: 760px; margin-bottom: 2.5rem; }

/* ---------- glass ---------- */
.glass {
  background: var(--glass-solid);
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: var(--radius);
  box-shadow: 0 18px 50px rgba(24, 20, 21, 0.07), 0 1px 0 rgba(255,255,255,0.8) inset;
}
/* backdrop-filter solo en las piezas protagonistas: muchas capas con blur pesan en máquinas modestas */
@supports (backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px)) {
  .hero-card.glass, .hc-check.glass, .about-card.glass {
    background: var(--glass);
    -webkit-backdrop-filter: blur(22px) saturate(170%);
    backdrop-filter: blur(22px) saturate(170%);
  }
}

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.95rem 1.5rem; border-radius: 999px; border: 1px solid transparent;
  font-family: var(--font-display); font-weight: 700; font-size: 0.98rem; line-height: 1;
  cursor: pointer; white-space: nowrap;
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out), background 0.3s, color 0.3s;
  will-change: transform;
}
.btn-solid { background: var(--ink); color: #fff; box-shadow: 0 10px 24px rgba(24, 20, 21, 0.18); }
.btn-solid:hover { background: var(--green-deep); box-shadow: 0 14px 30px rgba(62, 138, 80, 0.3); }
.btn-ghost { background: rgba(255,255,255,0.5); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: #fff; border-color: rgba(24,20,21,0.25); }
.btn-wa { background: #25d366; color: #0b3d1c; }
.btn-wa:hover { background: #1fbf5b; }
.btn-sm { padding: 0.7rem 1.15rem; font-size: 0.9rem; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  padding: 0.75rem 0;
  transition: padding 0.4s var(--ease-out);
}
.nav-inner {
  width: min(var(--container), 100% - 2rem); margin-inline: auto;
  height: 56px; padding: 0 0.6rem 0 1rem;
  display: flex; align-items: center; gap: 1.5rem;
  border-radius: 999px;
  background: rgba(249, 249, 249, 0.72);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow: 0 8px 30px rgba(24, 20, 21, 0.06);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
}
.brand { display: inline-flex; align-items: center; gap: 0.55rem; color: var(--ink); }
.brand-mark { width: 30px; height: 30px; color: var(--ink); }
.brand-name { font-family: var(--font-display); font-weight: 800; letter-spacing: 0.12em; font-size: 1.05rem; }
.nav-links { display: flex; gap: 1.6rem; margin-left: auto; margin-right: 0.5rem; }
.nav-links a {
  position: relative; font-size: 0.93rem; font-weight: 500; color: var(--ink-soft); padding: 0.4rem 0;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--green); transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 6px; margin-left: auto;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); transition: transform 0.3s, opacity 0.3s; }

/* ---------- hero ---------- */
.hero { padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4.5rem); }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 5.2vw, 4.1rem); font-weight: 800; line-height: 1.05; letter-spacing: -0.03em;
  text-wrap: balance;
}
.hero-title em { font-style: normal; color: var(--green-deep); position: relative; white-space: nowrap; }
.hero-title em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0.05em; height: 0.28em; z-index: -1;
  background: var(--green-3); border-radius: 4px;
}
.hero-sub { margin-top: 1.4rem; font-size: 1.12rem; color: var(--ink-soft); max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2rem; }
.hero-author { display: flex; align-items: center; gap: 0.7rem; margin-top: 1.2rem; }
.hero-author img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; border: 2px solid #fff; box-shadow: 0 4px 14px rgba(24,20,21,0.15); flex: 0 0 44px; }
.hero-author p { font-size: 0.86rem; color: var(--mute); line-height: 1.4; }
.hero-author strong { color: var(--ink); font-weight: 600; }

/* tarjeta informe */
.hero-card { padding: 1.4rem 1.5rem 1.2rem; animation: floatY 7s ease-in-out infinite; }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.report-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.report-tag { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; }
.report-example { font-size: 0.72rem; color: var(--mute); border: 1px solid var(--line); padding: 0.2rem 0.55rem; border-radius: 999px; }
.report-list li { display: flex; align-items: flex-start; gap: 0.8rem; padding: 0.65rem 0; border-top: 1px solid var(--line); }
.report-list strong { display: block; font-size: 0.92rem; font-family: var(--font-display); }
.report-list small { display: block; font-size: 0.82rem; color: var(--ink-soft); }
.dot { flex: 0 0 10px; width: 10px; height: 10px; border-radius: 50%; margin-top: 0.45rem; box-shadow: 0 0 0 4px rgba(0,0,0,0.04); }
.dot-red { background: var(--red); } .dot-amber { background: var(--amber); } .dot-green { background: var(--green); }
.report-foot { display: flex; justify-content: space-between; margin-top: 0.9rem; padding-top: 0.8rem; border-top: 1px solid var(--line); font-size: 0.82rem; color: var(--mute); }
.report-time { font-family: var(--font-display); font-weight: 700; color: var(--green-deep); }

/* ---------- clientes ---------- */
.clients { padding: 1.5rem 0 3rem; }
.clients-label { text-align: center; font-size: 0.85rem; color: var(--mute); margin-bottom: 1.2rem; }
.clients-wall { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.45rem 0.6rem; max-width: 1000px; margin-inline: auto; }
.clients-wall li {
  font-family: var(--font-display); font-weight: 700; font-size: 0.92rem; color: var(--ink-soft);
  padding: 0.42rem 0.85rem; border-radius: 999px; background: rgba(255,255,255,0.55); border: 1px solid var(--line);
  transition: color 0.3s, border-color 0.3s, background 0.3s;
}
.clients-wall li:hover { color: var(--ink); border-color: var(--green); background: #fff; }

/* ---------- stats ---------- */
.stats { padding: 1rem 0 3.5rem; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.stat { padding: 1.4rem 1.5rem; border-left: 3px solid var(--green); }
.stat-num { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 3.6vw, 2.8rem); letter-spacing: -0.03em; line-height: 1; }
.stat-label { display: block; margin-top: 0.5rem; font-size: 0.86rem; color: var(--ink-soft); }

/* ---------- servicios ---------- */
.services { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.card { padding: 1.7rem 1.6rem 1.8rem; transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease-out); }
.card:hover { transform: translateY(-4px); box-shadow: 0 26px 60px rgba(24, 20, 21, 0.10); }
.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 12px; background: var(--green-3); color: var(--green-deep);
  font-family: var(--font-display); font-weight: 800; font-size: 0.85rem; margin-bottom: 1.1rem;
}
.card h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; margin-bottom: 0.55rem; letter-spacing: -0.01em; }
.card p { font-size: 0.95rem; color: var(--ink-soft); }

/* ---------- health check ---------- */
.hc { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.hc-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.steps { margin: 1.8rem 0 2rem; counter-reset: step; display: grid; gap: 1rem; }
.steps li {
  counter-increment: step; position: relative; padding-left: 3.2rem;
}
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0.05rem;
  width: 2.2rem; height: 2.2rem; border-radius: 50%; background: var(--ink); color: #fff;
  font-family: var(--font-display); font-weight: 700; font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center;
}
.steps strong { display: block; font-family: var(--font-display); font-size: 1.05rem; }
.steps span { display: block; color: var(--ink-soft); font-size: 0.95rem; }
.hc-check { padding: 1.6rem 1.7rem; position: sticky; top: calc(var(--nav-h) + 1rem); }
.hc-check-title { font-family: var(--font-display); font-weight: 700; margin-bottom: 0.8rem; }
.checklist li { position: relative; padding: 0.6rem 0 0.6rem 1.9rem; border-top: 1px solid var(--line); font-size: 0.95rem; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 0.95rem; width: 1.05rem; height: 1.05rem; border-radius: 50%;
  background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/70% no-repeat;
}

/* ---------- experiencia ---------- */
.about { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.about-grid { display: grid; grid-template-columns: 0.75fr 1.25fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.about-card { padding: 2.2rem 1.8rem; text-align: center; }
.about-photo {
  width: 168px; height: 168px; border-radius: 50%; margin: 0 auto 1.1rem; object-fit: cover;
  border: 4px solid #fff; box-shadow: 0 16px 40px rgba(24, 20, 21, 0.16), 0 0 0 1px var(--line);
}
.about-name { font-family: var(--font-display); font-weight: 800; font-size: 1.35rem; letter-spacing: -0.01em; }
.about-role { color: var(--green-deep); font-weight: 600; font-size: 0.92rem; margin-top: 0.2rem; }
.about-loc { color: var(--mute); font-size: 0.85rem; margin-top: 0.6rem; }
.about-copy p + p { margin-top: 1rem; }
.about-copy > p:not(.eyebrow) { color: var(--ink-soft); }
.about-copy .h2 { margin-bottom: 1.1rem; color: var(--ink); }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.4rem; }
.chips li { font-size: 0.78rem; font-weight: 500; padding: 0.3rem 0.65rem; border-radius: 999px; background: rgba(255,255,255,0.65); border: 1px solid var(--line); color: var(--ink-soft); }

/* ---------- cómo trabajamos ---------- */
.how { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.how-num { font-family: var(--font-display); font-weight: 800; font-size: 2.4rem; color: var(--green); line-height: 1; letter-spacing: -0.03em; }
.how-item h3 { font-family: var(--font-display); font-size: 1.15rem; margin: 0.6rem 0 0.4rem; }
.how-item p { color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- faq ---------- */
.faq { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.faq-inner { max-width: 860px; }
.faq-list { display: grid; gap: 0.7rem; }
.faq-list details { padding: 0 1.4rem; border-radius: var(--radius-sm); }
.faq-list summary {
  list-style: none; cursor: pointer; padding: 1.05rem 2.2rem 1.05rem 0; position: relative;
  font-family: var(--font-display); font-weight: 700; font-size: 1.02rem;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; border-radius: 50%; background: var(--green-3); color: var(--green-deep);
  display: flex; align-items: center; justify-content: center; font-weight: 700; transition: transform 0.4s var(--ease-out);
}
.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-list details p { padding: 0 0 1.2rem; color: var(--ink-soft); font-size: 0.96rem; }

/* ---------- contacto ---------- */
.contact { padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(3rem, 6vw, 5rem); }
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact-alt { display: flex; flex-direction: column; align-items: flex-start; gap: 0.9rem; margin-top: 1.8rem; }
.contact-mail { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; position: relative; }
.contact-mail::after { content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px; background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform 0.5s var(--ease-out); }
.contact-mail:hover::after { transform: scaleX(1); }
.contact-form { padding: 1.7rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 0.82rem; font-weight: 600; color: var(--ink-soft); }
.field input, .field select, .field textarea {
  width: 100%; padding: 0.75rem 0.9rem; border-radius: var(--radius-sm);
  border: 1px solid rgba(24,20,21,0.15); background: rgba(255,255,255,0.8);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 4px rgba(106,181,123,0.2); }
.field textarea { resize: vertical; min-height: 84px; }
.form-status { grid-column: 1 / -1; font-size: 0.9rem; min-height: 1.2em; color: var(--green-deep); font-weight: 600; }
.form-status.is-error { color: var(--red); }
.form-legal { grid-column: 1 / -1; font-size: 0.78rem; color: var(--mute); }
.contact-form.is-sending { opacity: 0.6; pointer-events: none; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 2.2rem 0 2.5rem; background: rgba(255,255,255,0.35); }
.footer-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem 2rem; align-items: start; }
.footer-brand { display: flex; align-items: baseline; gap: 0.8rem; color: var(--ink-soft); font-size: 0.9rem; }
.footer-addr { font-style: normal; font-size: 0.9rem; color: var(--ink-soft); text-align: right; line-height: 1.7; }
.footer-addr a:hover { color: var(--green-deep); }
.footer-copy { grid-column: 1 / -1; font-size: 0.78rem; color: var(--mute); }

/* ---------- reveal on scroll (desde un estado VISIBLE: solo se desplaza, nunca opacity 0) ---------- */
.reveal { transform: translateY(14px); transition: transform 0.9s var(--ease-out); }
.reveal.is-revealed { transform: none; }
.reveal[data-split] { opacity: 1; transform: none; }
.hero-card.reveal { transform: none; }

/* ---------- reduced motion: solo lo intrusivo ---------- */
@media (prefers-reduced-motion: reduce) {
  .mesh { animation: none; }
  .hero-card { animation: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { max-width: 480px; }
  .hc-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .hc-check { position: static; }
  .about-card { max-width: 420px; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav-links, .nav .btn-sm { display: none; }
  .nav-toggle { display: flex; }
  .nav.is-open .nav-links {
    display: flex; flex-direction: column; gap: 0.2rem;
    position: absolute; left: 1rem; right: 1rem; top: calc(100% + 0.4rem);
    padding: 0.8rem 1.2rem; border-radius: var(--radius);
    background: rgba(249,249,249,0.96); border: 1px solid rgba(255,255,255,0.8); box-shadow: 0 20px 50px rgba(24,20,21,0.12);
  }
  .nav.is-open .nav-links a { padding: 0.7rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav.is-open .nav-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav.is-open .nav-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .hero { padding-top: 2.2rem; }
  .hero-actions .btn { width: 100%; }
  .cards-grid, .how-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-addr { text-align: left; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
  .stat { padding: 1rem 1.1rem; }
}