/* ─── Variables ─────────────────────────────────────── */
:root {
  --bg:        #f7f5f1;
  --bg2:       #edeae3;
  --bg3:       #ffffff;
  --card:      #ffffff;
  --teal:      #1d8c76;
  --gold:      #b06a1a;
  --purple:    #6b4fa8;
  --white:     #1c1c2e;
  --muted:     #5a6278;
  --border:    rgba(0,0,0,0.09);
  --radius:    14px;
  --shadow:    0 2px 20px rgba(0,0,0,0.08);
  --font:      'Inter', sans-serif;
  --font-head: 'Cinzel', serif;
}

/* ─── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--white);
  line-height: 1.7;
  min-height: 100vh;
}
a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--gold); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ─── Subtle warm background texture ───────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 40%, rgba(29,140,118,0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 15%, rgba(107,79,168,0.04) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
}

/* ─── Layout ─────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
section { padding: 72px 0; }

/* ─── Nav ────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247,245,241,0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--teal);
  letter-spacing: 0.05em;
}
.nav-links {
  display: flex;
  gap: 2px;
  align-items: center;
}

/* ─── Dropdown nav items ─────────────────────────── */
.nav-item { position: relative; }

.nav-top {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.2s;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.nav-top:hover, .nav-item.active > .nav-top {
  color: var(--teal);
  background: rgba(29,140,118,0.08);
}
.nav-top .caret {
  font-size: 0.6rem;
  opacity: 0.6;
  transition: transform 0.2s;
}
.nav-item:hover .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  min-width: 210px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.18s, transform 0.18s, visibility 0.18s;
  z-index: 200;
}
.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown a {
  display: block;
  padding: 8px 12px;
  font-size: 0.82rem;
  color: var(--muted);
  border-radius: 6px;
  transition: all 0.15s;
  font-weight: 500;
}
.dropdown a:hover, .dropdown a.active {
  color: var(--teal);
  background: rgba(29,140,118,0.07);
}
.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 6px;
}

.nav-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--white); font-size: 1.4rem; }

/* ─── Mobile nav ──────────────────────────────────── */
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(247,245,241,0.99);
    flex-direction: column;
    padding: 12px 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 0;
    max-height: 80vh;
    overflow-y: auto;
  }
  .nav-links.open { display: flex; }
  .nav-item { width: 100%; }
  .nav-top { width: 100%; justify-content: space-between; padding: 10px 12px; }
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid rgba(29,140,118,0.2);
    border-radius: 0;
    margin-left: 12px;
    padding: 2px 0;
    display: none;
  }
  .nav-item.mob-open .dropdown { display: block; }
  .dropdown a { padding: 7px 12px; font-size: 0.8rem; }
}

/* ─── Hero ───────────────────────────────────────────── */
.hero {
  padding: 100px 0 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(29,140,118,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #1c1c2e 0%, var(--teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 36px;
}

/* ─── Buttons ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--teal);
  color: #ffffff;
}
.btn-primary:hover { background: #166d5c; color: #ffffff; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 1.5px solid var(--teal);
}
.btn-outline:hover { background: rgba(0,212,170,0.1); color: var(--teal); }

/* ─── Cards ──────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(0,0,0,0.12); border-color: rgba(29,140,118,0.3); }

.card-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}
.card h3 {
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--teal);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.card p { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }

/* ─── Grid layouts ───────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 580px) { .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; } }

/* ─── Section headings ───────────────────────────────── */
.section-tag {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 10px;
  display: block;
}
h2.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 14px;
  color: var(--white);
}
.section-subtitle {
  color: var(--muted);
  font-size: 1rem;
  max-width: 600px;
  margin-bottom: 48px;
}

/* ─── Page header ────────────────────────────────────── */
.page-header {
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}
.page-header .breadcrumb {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 12px;
}
.page-header .breadcrumb a { color: var(--teal); }
.page-header h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 14px;
  color: var(--white);
}
.page-header p { color: var(--muted); max-width: 620px; font-size: 1.05rem; }

/* ─── Content blocks ─────────────────────────────────── */
.content-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 56px;
}
.content-block.reverse { direction: rtl; }
.content-block.reverse > * { direction: ltr; }
@media (max-width: 720px) { .content-block { grid-template-columns: 1fr; } .content-block.reverse { direction: ltr; } }

.content-text h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: var(--teal);
  margin-bottom: 14px;
}
.content-text p { color: var(--muted); margin-bottom: 12px; font-size: 0.95rem; }
.content-text strong { color: var(--white); }

/* ─── Visual illustrations (CSS art) ────────────────── */
.visual-box {
  background: #f0ede6;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  position: relative;
  overflow: hidden;
}
.visual-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(29,140,118,0.06) 0%, transparent 70%);
}

/* Energy body SVG figure */
.energy-body {
  width: 80px;
  height: 180px;
  position: relative;
}

/* ─── Protocol steps ─────────────────────────────────── */
.steps { counter-reset: step; display: flex; flex-direction: column; gap: 16px; }
.step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 20px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.05);
}
.step-num {
  counter-increment: step;
  min-width: 32px; height: 32px;
  background: rgba(29,140,118,0.12);
  color: var(--teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.step-text { font-size: 0.9rem; color: var(--muted); line-height: 1.65; padding-top: 4px; }
.step-text strong { color: var(--white); }

/* ─── Pill tags ──────────────────────────────────────── */
.pill {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.pill-teal { background: rgba(29,140,118,0.1); color: var(--teal); }
.pill-gold { background: rgba(176,106,26,0.1); color: var(--gold); }
.pill-purple { background: rgba(107,79,168,0.1); color: var(--purple); }

/* ─── Frequency table ────────────────────────────────── */
.freq-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}
.freq-table th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.freq-table td {
  padding: 8px 16px;
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.freq-high td { color: #4ade80; }
.freq-mid td { color: var(--gold); }
.freq-low td { color: #f87171; }

/* ─── Accordion ──────────────────────────────────────── */
.accordion { display: flex; flex-direction: column; gap: 8px; }
.acc-item { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.acc-trigger {
  width: 100%;
  text-align: left;
  background: #ffffff;
  padding: 16px 20px;
  color: var(--white);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: none;
  transition: background 0.2s;
}
.acc-trigger:hover { background: #f5f3ef; }
.acc-trigger .acc-icon { color: var(--teal); transition: transform 0.25s; font-size: 1.1rem; }
.acc-trigger.open .acc-icon { transform: rotate(45deg); }
.acc-body {
  display: none;
  padding: 16px 20px 20px;
  background: #f9f7f4;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
}
.acc-body.open { display: block; }
.acc-body ul { margin-top: 8px; display: flex; flex-direction: column; gap: 6px; }
.acc-body ul li::before { content: '◆ '; color: var(--teal); font-size: 0.65rem; }

/* ─── Implant card ───────────────────────────────────── */
.implant-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.05);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.implant-card:hover { border-color: rgba(107,79,168,0.3); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,0.1); }
.implant-num {
  font-size: 0.7rem;
  color: var(--purple);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.implant-name {
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 10px;
}
.implant-card p { font-size: 0.83rem; color: var(--muted); line-height: 1.6; }
.implant-card .effect {
  margin-top: 10px;
  font-size: 0.78rem;
  color: #f87171;
  font-style: italic;
}

/* ─── Notice box ─────────────────────────────────────── */
.notice {
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 0.86rem;
  margin-bottom: 20px;
}
.notice-info { background: rgba(29,140,118,0.07); border-left: 3px solid var(--teal); color: var(--muted); }
.notice-warning { background: rgba(176,106,26,0.07); border-left: 3px solid var(--gold); color: var(--muted); }
.notice-source { background: rgba(107,79,168,0.07); border-left: 3px solid var(--purple); color: var(--muted); font-style: italic; }

/* ─── Transformation list ────────────────────────────── */
.transform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.transform-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.transform-num {
  min-width: 28px; height: 28px;
  background: rgba(107,79,168,0.1);
  color: var(--purple);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}
.transform-label { font-size: 0.85rem; color: var(--white); }
.transform-sub { font-size: 0.75rem; color: var(--muted); }

/* ─── Quote ──────────────────────────────────────────── */
blockquote {
  border-left: 3px solid var(--teal);
  padding: 14px 20px;
  background: rgba(29,140,118,0.05);
  border-radius: 0 10px 10px 0;
  color: var(--muted);
  font-style: italic;
  font-size: 0.92rem;
  margin: 20px 0;
}

/* ─── Ethics banner ──────────────────────────────────── */
.ethics-banner {
  background: rgba(176,106,26,0.06);
  border-bottom: 1px solid rgba(176,106,26,0.18);
  padding: 9px 24px;
  text-align: center;
  font-size: 0.79rem;
  color: var(--muted);
  position: relative;
  z-index: 99;
  line-height: 1.5;
}
.ethics-banner strong { color: var(--gold); font-weight: 600; }

/* ─── Footer ─────────────────────────────────────────── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  position: relative;
  z-index: 1;
  margin-top: 80px;
}
footer a { color: var(--teal); }

/* ─── Utilities ──────────────────────────────────────── */
.text-center { text-align: center; }
.text-teal { color: var(--teal); }
.text-gold { color: var(--gold); }
.text-muted { color: var(--muted); }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-40 { margin-bottom: 40px; }
.mt-8 { margin-top: 8px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.divider { height: 1px; background: var(--border); margin: 40px 0; }
.highlight-box {
  background: linear-gradient(135deg, rgba(29,140,118,0.05), rgba(107,79,168,0.04));
  border: 1px solid rgba(29,140,118,0.15);
  border-radius: var(--radius);
  padding: 28px;
}

/* ─── Language switcher (nav) ───────────────────────── */
.nav-lang {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: rgba(0,0,0,0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  flex-shrink: 0;
}
.nav-lang button {
  background: transparent;
  border: none;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font);
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.18s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.nav-lang button:hover { color: var(--teal); }
.nav-lang button.active {
  background: rgba(29,140,118,0.12);
  color: var(--teal);
}
@media (max-width: 820px) {
  .nav-lang { order: 2; margin-left: auto; margin-right: 8px; }
  .nav-lang .nav-lang-label { display: none; }
}

/* ─── Multi-language visibility ──────────────────────── */
[data-lang="es"],
[data-lang="ru"] { display: none; }

body.lang-es [data-lang="en"] { display: none; }
body.lang-es [data-lang="es"] { display: revert; }

body.lang-ru [data-lang="en"] { display: none; }
body.lang-ru [data-lang="ru"] { display: revert; }