/* =========================================================
   Zenith Academia Services — Stylesheet
   Palette: White background · Navy primary · Subtle gold accent
   ========================================================= */

:root {
  --navy-900: #0a1f3d;
  --navy-800: #122a4f;
  --navy-700: #1b3a64;
  --navy-600: #234676;
  --navy-100: #eef2f8;
  --navy-50:  #f6f8fb;

  --gold:      #c9a961;
  --gold-dark: #ab8c4a;
  --gold-soft: #f5edd9;

  --ink:      #1a2233;
  --ink-soft: #4a5468;
  --muted:    #8893a7;
  --line:     #e3e8f0;
  --line-soft:#eef2f8;

  --white:    #ffffff;
  --bg-tint:  #f7f9fc;
  --whatsapp: #25d366;
  --whatsapp-dark: #1da851;

  --shadow-sm: 0 1px 2px rgba(10,31,61,0.04), 0 1px 3px rgba(10,31,61,0.06);
  --shadow-md: 0 4px 16px rgba(10,31,61,0.08);
  --shadow-lg: 0 12px 40px rgba(10,31,61,0.12);

  --radius:   10px;
  --radius-lg: 16px;

  --container: 1200px;
  --container-narrow: 860px;

  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-head: Georgia, "Times New Roman", serif;
}

/* ------------------ Reset ------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-head); color: var(--navy-900); line-height: 1.2; margin: 0 0 0.5em; font-weight: 700; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.05rem; }
p { margin: 0 0 1em; }
a { color: var(--navy-700); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--gold-dark); }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: var(--container-narrow); }

/* ------------------ Buttons ------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }
.btn-block { display: flex; width: 100%; }
.btn-primary { background: var(--navy-800); color: var(--white); }
.btn-primary:hover { background: var(--navy-900); color: var(--white); }
.btn-whatsapp { background: var(--whatsapp); color: var(--white); }
.btn-whatsapp:hover { background: var(--whatsapp-dark); color: var(--white); }
.btn-outline { background: transparent; color: var(--navy-800); border-color: var(--navy-800); }
.btn-outline:hover { background: var(--navy-800); color: var(--white); }

/* ------------------ Eyebrow & Section Heads ------------------ */
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 10px;
}
.section { padding: 72px 0; }
.section-tint { background: var(--bg-tint); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .eyebrow { margin-bottom: 8px; }
.section-sub { color: var(--ink-soft); font-size: 1.02rem; margin-top: 8px; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 24px;
  max-width: var(--container);
  margin: 0 auto;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--navy-800);
  object-fit: contain;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong {
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--navy-900);
  font-weight: 700;
}
.brand-text small {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.main-nav { display: flex; align-items: center; }
.nav-list {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}
.nav-list a {
  display: inline-block;
  padding: 8px 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--navy-800);
  border-radius: 6px;
}
.nav-list a:hover { background: var(--navy-50); color: var(--navy-900); }
.nav-list a.is-active { color: var(--gold-dark); font-weight: 600; }

.header-cta { display: flex; align-items: center; gap: 12px; }
.nav-close { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--navy-800);
  margin: 0 auto;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  background: linear-gradient(180deg, var(--navy-50) 0%, var(--white) 100%);
  padding: 64px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(201,169,97,0.10), transparent 70%);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 56px;
}
.hero-text .eyebrow { color: var(--gold-dark); }
.hero-text h1 { margin: 8px 0 18px; }
.hero-text p { font-size: 1.1rem; color: var(--ink-soft); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Abstract research visual */
.hero-visual { display: grid; place-items: center; }
.hero-video {
  width: 100%;
  margin: 0;
  padding: 12px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.hero-video iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 220px;
  border: 0;
  border-radius: calc(var(--radius) - 2px);
  background: var(--navy-900);
}
.hero-video figcaption { padding: 10px 4px 2px; color: var(--ink-soft); font-size: .85rem; }
.research-graphic {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
}
.rg-grid {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 200px;
  padding: 0 4px 16px;
  border-bottom: 1.5px solid var(--line);
}
.rg-bar {
  flex: 1;
  height: var(--h);
  background: linear-gradient(180deg, var(--navy-700), var(--navy-900));
  border-radius: 4px 4px 0 0;
  position: relative;
}
.rg-bar:nth-child(odd) { background: linear-gradient(180deg, var(--gold), var(--gold-dark)); }
.rg-card {
  margin-top: 18px;
  background: var(--navy-50);
  border-radius: 8px;
  padding: 14px;
  position: relative;
}
.rg-line { height: 6px; background: var(--navy-700); border-radius: 3px; margin-bottom: 8px; width: 80%; }
.rg-line.short { width: 50%; background: var(--gold); }
.rg-dot {
  position: absolute;
  top: -6px; right: 14px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--white);
  box-shadow: 0 0 0 3px rgba(201,169,97,0.25);
}
.rg-tag {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--navy-900);
  color: var(--gold);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 56px;
}
.about-text p { font-size: 1.02rem; color: var(--ink-soft); }
.about-audience {
  background: var(--navy-900);
  color: var(--white);
  padding: 32px;
  border-radius: var(--radius-lg);
}
.about-audience h3 { color: var(--white); margin-bottom: 16px; }
.audience-list li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.92);
  font-size: 0.95rem;
}
.audience-list li::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--gold);
  border-radius: 50%;
  flex-shrink: 0;
}
.audience-list li:last-child { border-bottom: none; }

.lifecycle { margin-bottom: 56px; }
.lifecycle h3 { text-align: center; margin-bottom: 32px; }
.lifecycle-track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  counter-reset: step;
}
.lifecycle-track li {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 14px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--navy-800);
  position: relative;
}
.lifecycle-track li span {
  display: block;
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gold-dark);
  margin-bottom: 6px;
}

.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.vm-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.vm-icon {
  color: var(--gold-dark);
  margin-bottom: 14px;
}
.vm-card h4 { color: var(--navy-900); margin-bottom: 8px; }
.vm-card p { color: var(--ink-soft); margin: 0; }

/* =========================================================
   SERVICES (collapsible blocks)
   ========================================================= */
.service-block {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease;
}
.service-block:hover { box-shadow: var(--shadow-md); }
.service-block-head {
  display: flex;
  align-items: center;
  gap: 18px;
  width: 100%;
  padding: 22px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
}
.service-num {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold-dark);
  min-width: 32px;
}
.service-title {
  flex: 1;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy-900);
  font-family: var(--font-head);
}
.service-chevron {
  width: 12px; height: 12px;
  border-right: 2px solid var(--navy-700);
  border-bottom: 2px solid var(--navy-700);
  transform: rotate(45deg);
  transition: transform .25s ease;
  margin-right: 4px;
}
.service-block-head[aria-expanded="true"] .service-chevron {
  transform: rotate(-135deg);
  margin-top: 6px;
}
.service-block-body {
  padding: 0 24px 24px;
  display: none;
}
.service-block[data-open="true"] .service-block-body { display: block; }

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.chip-list li {
  background: var(--navy-50);
  color: var(--navy-800);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.chip-list a { display: block; color: inherit; }
.chip-list a:hover { color: var(--gold-dark); }
.chip-list a:focus-visible { outline: 2px solid var(--gold-dark); outline-offset: 2px; }

/* =========================================================
   CO-AUTHORSHIP
   ========================================================= */
.opportunity-empty {
  background: var(--white);
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: 56px 32px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.opportunity-empty svg { color: var(--gold); margin-bottom: 16px; }
.opportunity-empty h3 { margin-bottom: 12px; }
.opportunity-empty p { color: var(--ink-soft); max-width: 540px; margin: 0 auto 12px; }
.opportunity-empty .muted { color: var(--muted); }
.opportunity-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* =========================================================
   PUBLICATION WORKFLOW
   ========================================================= */
.workflow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  counter-reset: ws;
  margin-bottom: 40px;
}
.workflow-step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  transition: transform .2s ease, box-shadow .2s ease;
}
.workflow-step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.ws-num {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold-dark);
  margin-bottom: 10px;
}
.workflow-step h4 { color: var(--navy-900); margin-bottom: 8px; }
.workflow-step p { color: var(--ink-soft); font-size: 0.92rem; margin: 0; }

.disclaimer {
  background: var(--gold-soft);
  border-left: 4px solid var(--gold);
  padding: 18px 22px;
  border-radius: 6px;
  color: var(--ink);
  font-size: 0.95rem;
}
.disclaimer strong { color: var(--navy-900); }

/* =========================================================
   RESEARCH FIELDS GRID
   ========================================================= */
.fields-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.fields-grid li {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--navy-800);
  text-align: center;
  transition: all .2s ease;
}
.fields-grid li:hover {
  border-color: var(--gold);
  background: var(--navy-50);
  color: var(--navy-900);
  transform: translateY(-2px);
}

/* =========================================================
   WHY ZENITH
   ========================================================= */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.why-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.why-icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: var(--navy-50);
  color: var(--navy-800);
  border-radius: 12px;
  margin-bottom: 18px;
}
.why-card h3 { margin-bottom: 10px; }
.why-card p { color: var(--ink-soft); margin: 0; font-size: 0.95rem; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 40px;
  align-items: start;
}
.contact-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-field { margin-bottom: 16px; display: flex; flex-direction: column; }
.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-800);
  margin-bottom: 6px;
}
.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
  width: 100%;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--navy-700);
  box-shadow: 0 0 0 3px rgba(35,70,118,0.1);
}
.form-field textarea { resize: vertical; }
.form-note { margin: 0 0 14px; color: var(--ink-soft); font-size: .88rem; }
.consent-field label { display: flex; align-items: flex-start; gap: 9px; font-size: .88rem; font-weight: 400; }
.consent-field input { margin-top: 5px; accent-color: var(--navy-700); }
.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.form-success {
  margin-top: 16px;
  padding: 14px 18px;
  background: #e8f7ee;
  border: 1px solid #b6e3c6;
  border-radius: 8px;
  color: #15783a;
  font-weight: 500;
  font-size: 0.93rem;
}

.form-error {
  margin-top: 16px;
  padding: 14px 18px;
  background: #fff0ef;
  border: 1px solid #f0c1bc;
  border-radius: 8px;
  color: #9c3025;
  font-weight: 500;
  font-size: 0.93rem;
}

.contact-aside {
  background: var(--navy-900);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.contact-aside h3 { color: var(--white); margin-bottom: 12px; }
.contact-aside p { color: rgba(255,255,255,0.85); margin-bottom: 24px; font-size: 0.95rem; }
.contact-meta {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.88rem;
  display: grid;
  gap: 8px;
}
.contact-meta strong {
  display: inline-block;
  width: 100px;
  color: var(--gold);
  font-weight: 600;
}

/* =========================================================
   SOCIAL
   ========================================================= */
.social-grid {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 24px;
  font-weight: 600;
  color: var(--navy-800);
  box-shadow: var(--shadow-sm);
  transition: all .2s ease;
}
.social-link:hover {
  background: var(--navy-900);
  color: var(--white);
  border-color: var(--navy-900);
  transform: translateY(-2px);
}

/* =========================================================
   FAQ
   ========================================================= */
.faq-list { display: grid; gap: 10px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow .2s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item[open] { border-color: var(--gold); box-shadow: var(--shadow-sm); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-weight: 600;
  color: var(--navy-900);
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--gold-dark);
  font-weight: 400;
  transition: transform .2s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-body {
  padding: 0 24px 22px;
  color: var(--ink-soft);
}
.faq-body p { margin: 0; font-size: 0.95rem; }
.faq-body a { color: var(--gold-dark); font-weight: 600; text-decoration: underline; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--navy-900);
  color: rgba(255,255,255,0.85);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand strong {
  font-family: var(--font-head);
  color: var(--white);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}
.footer-brand p { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin: 6px 0; }
.footer-meta { color: var(--gold) !important; font-size: 0.82rem !important; margin-top: 14px; }
.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-family: var(--font-body);
  font-weight: 700;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}
.footer-col ul li a:hover { color: var(--gold); }
.footer-col ul li.muted {
  color: rgba(255,255,255,0.35);
  font-size: 0.9rem;
  font-style: italic;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  color: rgba(255,255,255,0.55);
  font-size: 0.85rem;
  margin: 0;
}

/* =========================================================
   FLOATING WHATSAPP
   ========================================================= */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: var(--white);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 24px rgba(37,211,102,0.4);
  transition: transform .2s ease, box-shadow .2s ease;
  animation: floatPulse 2.4s ease-in-out infinite;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  background: var(--whatsapp-dark);
  color: var(--white);
  animation: none;
}
@keyframes floatPulse {
  0%, 100% { box-shadow: 0 6px 24px rgba(37,211,102,0.4), 0 0 0 0 rgba(37,211,102,0.4); }
  50%      { box-shadow: 0 6px 24px rgba(37,211,102,0.4), 0 0 0 12px rgba(37,211,102,0); }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; max-width: 380px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .lifecycle-track { grid-template-columns: repeat(3, 1fr); }
  .workflow { grid-template-columns: repeat(2, 1fr); }
  .fields-grid { grid-template-columns: repeat(3, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; gap: 28px; }
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-close {
    display: block;
    position: absolute;
    top: 18px; right: 18px;
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--navy-900);
    cursor: pointer;
    line-height: 1;
  }
  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: min(320px, 86vw);
    height: 100vh;
    background: var(--white);
    border-left: 1px solid var(--line);
    box-shadow: -8px 0 30px rgba(10,31,61,0.1);
    flex-direction: column;
    justify-content: flex-start;
    padding: 70px 24px 24px;
    transition: right .3s ease;
    z-index: 99;
    overflow-y: auto;
  }
  .main-nav.open { right: 0; }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 4px;
  }
  .nav-list a {
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 1rem;
    border-bottom: 1px solid var(--line-soft);
  }
  .header-cta .btn-whatsapp { display: none; }
  .header-inner { gap: 12px; }
}

@media (max-width: 640px) {
  .section { padding: 52px 0; }
  .container { padding: 0 18px; }
  .hero { padding: 40px 0 56px; }
  .hero-text p { font-size: 1rem; }
  .hero-actions .btn { flex: 1; }

  .vm-grid { grid-template-columns: 1fr; }
  .lifecycle-track { grid-template-columns: repeat(2, 1fr); }
  .workflow { grid-template-columns: 1fr; }
  .fields-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }

  .service-block-head { padding: 18px 18px; gap: 12px; }
  .service-block-body { padding: 0 18px 20px; }
  .service-title { font-size: 1.02rem; }

  .contact-form, .contact-aside { padding: 24px; }
  .opportunity-empty { padding: 36px 20px; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }

  .whatsapp-float { width: 52px; height: 52px; bottom: 18px; right: 18px; }
  .whatsapp-float svg { width: 24px; height: 24px; }

  .brand-text small { display: none; }
  .brand-text strong { font-size: 0.92rem; }
  .brand-mark { width: 36px; height: 36px; }
}

@media (max-width: 380px) {
  .fields-grid { grid-template-columns: 1fr; }
  .lifecycle-track { grid-template-columns: 1fr; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .whatsapp-float { animation: none; }
}

.cookie-notice {
  position: fixed;
  z-index: 120;
  right: 16px;
  bottom: 16px;
  width: min(440px, calc(100% - 32px));
  padding: 18px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.cookie-notice[hidden] { display: none; }
.cookie-notice p { margin-bottom: 12px; font-size: .9rem; }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.cookie-actions .btn { flex: 1 1 130px; }
.trust-strip {
  padding: 14px 0;
  color: var(--white);
  background: var(--navy-900);
  font-size: .88rem;
  text-align: center;
}
.trust-strip p { margin: 0; }
.verification-note {
  max-width: 900px;
  margin: 24px auto 0;
  padding: 16px 18px;
  color: var(--ink-soft);
  background: var(--navy-50);
  border-left: 3px solid var(--gold);
}
.registration-card {
  max-width: 860px;
  margin: 40px auto 0;
  padding: 24px;
  background: var(--navy-50);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.registration-card dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 24px; }
.registration-card dl div { min-width: 0; }
.registration-card dt { color: var(--ink-soft); font-size: .85rem; }
.registration-card dd { margin: 0; font-weight: 600; }
.registration-card > p { margin: 18px 0 0; font-size: .88rem; color: var(--ink-soft); }
.principles { max-width: 860px; margin: 32px auto 0; }
.principles h3 { text-align: center; }
@media (max-width: 640px) {
  .registration-card dl { grid-template-columns: 1fr; }
}

/* Shared pages and service directory */
.page-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-nav a { white-space: nowrap; font-size: .84rem; }
.page-intro { max-width: 820px; margin: 0 auto 36px; text-align: center; }
.page-intro h1 { margin-bottom: 14px; }
.breadcrumbs { margin-bottom: 24px; color: var(--ink-soft); font-size: .9rem; }
.breadcrumbs span { margin: 0 7px; }
.content-card {
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.content-card > section + section { margin-top: 28px; }
.content-card h2 { margin-top: 26px; font-size: 1.45rem; }
.content-card h2:first-child { margin-top: 0; }
.content-card p, .content-card li { color: var(--ink-soft); }
.content-card ul:not(.fields-grid) { margin: 12px 0 20px; padding-left: 1.3rem; list-style: disc; }
.content-card li + li { margin-top: 8px; }
.card-grid, .service-directory-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.service-category-group { margin: 42px 0; }
.service-category-group > h2 { margin-bottom: 18px; }
.service-card { padding: 23px; }
.service-card h3 { margin: 7px 0 10px; }
.service-card p { color: var(--ink-soft); }
.service-card[hidden], [data-category-group][hidden] { display: none; }
.text-link { font-weight: 700; }
.service-filter-panel { margin: 0 auto 34px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg-tint); }
.service-filter-panel > label { display: block; margin-bottom: 7px; color: var(--navy-800); font-weight: 700; }
.service-filter-panel input[type="search"] { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.filter-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.filter-button { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--navy-800); background: var(--white); cursor: pointer; font: inherit; font-size: .86rem; }
.filter-button.is-selected { color: var(--white); background: var(--navy-800); border-color: var(--navy-800); }
.filter-button:focus-visible, .page-nav a:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.page-cta { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin: 24px 0; }
.section-compact { margin: 42px 0; }
.numbered-list { padding-left: 1.5rem; list-style: decimal; }
.numbered-list li { margin: 10px 0; }
.workflow-details { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 0 0 32px; padding: 0; list-style: none; }
.workflow-detail { padding: 23px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.workflow-detail h2 { font-size: 1.25rem; }
.workflow-detail dl div { margin-top: 12px; }
.workflow-detail dt { color: var(--navy-800); font-weight: 700; }
.workflow-detail dd { margin: 4px 0 0; color: var(--ink-soft); }
.definition-list { margin: 16px 0 24px; }
.definition-list div { display: grid; grid-template-columns: minmax(150px, .7fr) 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.definition-list dt { color: var(--ink-soft); font-weight: 700; }
.definition-list dd { margin: 0; }
.fields-grid small { display: block; margin-top: 6px; color: var(--muted); font-size: .72rem; }
.checklist-card { margin: 26px 0; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); }
.checklist-card h2 { margin-top: 0; }
.checklist-card ul { padding-left: 1.3rem; list-style: disc; }
.article-content h2 { font-size: 1.4rem; }
.policy-meta { margin: 20px 0; padding: 12px 16px; color: var(--ink-soft); background: var(--navy-50); border: 1px solid var(--line); border-radius: 8px; font-size: .9rem; }
.policy-review-note { margin: 18px 0; padding: 14px 18px; background: var(--gold-soft); border-left: 4px solid var(--gold); }
.policy-links { grid-column: 1 / -1; }
.policy-links a { display: inline-block; margin: 4px; }
.page-footer-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.page-footer-grid h2 { color: var(--white); font: 700 1rem var(--font-body); }
.page-footer-grid a, .page-footer-grid p { color: rgba(255,255,255,.78); font-size: .86rem; }
.page-footer-grid ul li { margin: 6px 0; }
.footer-service-categories > li { margin-bottom: 12px; }
.footer-service-categories ul { padding-left: 14px; }
.footer-copyright { grid-column: 1 / -1; margin: 12px 0 0; padding-top: 15px; border-top: 1px solid rgba(255,255,255,.2); }
.page-footer { padding: 54px 0 26px; }
.page-footer .container { padding-left: 24px; padding-right: 24px; }
.contact-grid .contact-aside { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--navy-900); }
.contact-grid .contact-aside h2 { font-size: 1.35rem; }
.service-page .page-intro { margin-bottom: 30px; }
.service-page .content-card { margin-top: 24px; }
.service-page .content-card h2 { font-size: 1.45rem; }
@media (max-width: 900px) {
  .page-nav { order: 3; width: 100%; }
  .header-inner { flex-wrap: wrap; }
  .page-footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .card-grid, .service-directory-grid, .workflow-details { grid-template-columns: 1fr; }
  .page-nav { gap: 12px; padding: 6px 0; }
  .page-nav a { font-size: .8rem; }
  .page-footer-grid { grid-template-columns: 1fr; }
  .policy-links, .footer-copyright { grid-column: auto; }
  .definition-list div { grid-template-columns: 1fr; gap: 3px; }
  .page-cta .btn { width: 100%; }
}