/* ==========================================================================
   ДИАЛЕКТИКА 33 — site styles
   ========================================================================== */

:root {
  --bg: #f6f4ef;
  --bg-alt: #eeebe3;
  --surface: #ffffff;
  --ink: #14182b;
  --ink-soft: #2a2f45;
  --muted: #5b6175;
  --line: #ddd8cc;
  --accent: #e2552d;
  --accent-hover: #c9461f;
  --accent-ink: #ffffff;
  --accent-2: #2b4bdb;
  --success: #1f8a5b;
  --dark-bg: #14182b;
  --dark-ink: #eef0f7;
  --dark-muted: #a3a9c0;
  --dark-line: #2c3250;
  --dot: rgba(20, 24, 43, 0.14);
  --shadow: 0 1px 2px rgba(20, 24, 43, 0.05), 0 8px 24px rgba(20, 24, 43, 0.06);

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

  --radius: 14px;
  --header-h: 72px;
  --gutter: 24px;
  --section-pad: 112px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1120;
    --bg-alt: #121628;
    --surface: #171b30;
    --ink: #eef0f7;
    --ink-soft: #d4d8e6;
    --muted: #9aa0b8;
    --line: #262b45;
    --accent: #ff6b42;
    --accent-hover: #ff8461;
    --accent-ink: #14182b;
    --accent-2: #7b93ff;
    --success: #4cc38a;
    --dark-bg: #080a14;
    --dot: rgba(238, 240, 247, 0.12);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0e1120;
  --bg-alt: #121628;
  --surface: #171b30;
  --ink: #eef0f7;
  --ink-soft: #d4d8e6;
  --muted: #9aa0b8;
  --line: #262b45;
  --accent: #ff6b42;
  --accent-hover: #ff8461;
  --accent-ink: #14182b;
  --accent-2: #7b93ff;
  --success: #4cc38a;
  --dark-bg: #080a14;
  --dot: rgba(238, 240, 247, 0.12);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}

/* Base ------------------------------------------------------------------- */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; }
a { color: inherit; }
img, svg { display: block; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--bg);
  border-radius: 8px;
  text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* Buttons ---------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font: 600 15px/1 var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--ink); }

.btn-block { width: 100%; }

/* Header ----------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-right: auto;
}
.brand-mark { width: 40px; height: 28px; color: var(--ink); flex: none; }
.brand-lens { fill: var(--accent); }
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.2s, background-color 0.2s;
}
.site-nav a:hover { color: var(--ink); background: var(--bg-alt); }
.site-nav a.nav-cta {
  color: var(--accent-ink);
  background: var(--accent);
  margin-left: 8px;
}
.site-nav a.nav-cta:hover { background: var(--accent-hover); }

.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-switch {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.lang-switch a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  color: var(--muted);
  font: 600 13px/1 var(--font-body);
  text-decoration: none;
}
.lang-switch a:hover { color: var(--ink); }
.lang-switch a[aria-current="true"] {
  background: var(--ink);
  color: var(--bg);
  pointer-events: none;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
.icon-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
}
.icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: none; }
  :root:not([data-theme="light"]) .icon-moon { display: block; }
}

.menu-toggle { display: none; }
.menu-toggle span {
  display: block;
  grid-area: 1 / 1;
  width: 16px;
  height: 1.8px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s;
}
.menu-toggle span:first-child { transform: translateY(-3px); }
.menu-toggle span:last-child { transform: translateY(3px); }
.menu-toggle[aria-expanded="true"] span:first-child { transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: rotate(-45deg); }

/* Hero ------------------------------------------------------------------- */

.hero {
  padding: 72px 0 96px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 48px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow .num {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.hero h1 {
  font-size: clamp(34px, 5.2vw, 62px);
  margin-bottom: 24px;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 36em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
}
.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-visual { margin: 0; }
.hero-visual svg { width: 100%; height: auto; overflow: visible; }
.hero-visual .dot { fill: var(--dot); }
.hero-visual .dots-bg {
  -webkit-mask-image: radial-gradient(closest-side, #000 40%, transparent);
  mask-image: radial-gradient(closest-side, #000 40%, transparent);
}
.hero-visual .circle {
  fill: none;
  stroke-width: 2;
  stroke-dasharray: 817;
  stroke-dashoffset: 817;
  animation: draw 1.4s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}
.hero-visual .circle-a { stroke: var(--ink); }
.hero-visual .circle-b { stroke: var(--accent-2); animation-delay: 0.25s; }
.hero-visual .lens {
  fill: var(--accent);
  opacity: 0;
  animation: fade 0.8s ease 1.3s forwards;
}
.hero-visual .label {
  font: 700 14px var(--font-body);
  letter-spacing: 0.14em;
  text-anchor: middle;
  fill: var(--muted);
  opacity: 0;
  animation: fade 0.6s ease 1s forwards;
}
.hero-visual .label-lens {
  fill: var(--accent-ink);
  animation-delay: 1.6s;
}

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }

/* Sections --------------------------------------------------------------- */

.section {
  padding: var(--section-pad) 0;
  /* land menu jumps just under the header instead of above the section's padding */
  scroll-margin-top: calc(32px - var(--section-pad));
}
.section-alt { background: var(--bg-alt); }

.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}
.section h2 {
  font-size: clamp(28px, 3.6vw, 44px);
  margin-bottom: 20px;
}
.section-lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 38em;
}

/* Service cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.card {
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}
.card-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 24px;
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}
.card p {
  font-size: 15.5px;
  color: var(--muted);
}

/* Training */

.training-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: start;
}

.course-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.course {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 20px;
  align-items: baseline;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.course-num {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--accent);
}
.course h3 {
  font-size: 18px;
  margin-bottom: 6px;
}
.course p {
  font-size: 15.5px;
  color: var(--muted);
}
.tag {
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  white-space: nowrap;
}

.formats {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.formats h3 {
  font-size: 20px;
  margin-bottom: 20px;
}
.formats ul {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}
.formats li {
  display: flex;
  flex-direction: column;
  padding: 12px 0 12px 20px;
  border-left: 2px solid var(--line);
  transition: border-color 0.2s;
}
.formats li:hover { border-left-color: var(--accent); }
.formats strong { font-weight: 700; }
.formats li span { font-size: 14.5px; color: var(--muted); }
.formats-note {
  font-size: 14.5px;
  color: var(--muted);
  margin-bottom: 24px;
}

/* Approach (dark band) */

.section-dark {
  background: var(--dark-bg);
  color: var(--dark-ink);
}
.section-dark .section-lead { color: var(--dark-muted); }
.section-dark .eyebrow .num { color: var(--dark-muted); }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.step {
  position: relative;
  padding: 36px 28px 32px;
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
}
.step-num {
  display: block;
  margin-bottom: 28px;
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 400;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--dark-muted);
}
.step h3 {
  font-size: 24px;
  margin-bottom: 12px;
}
.step p { color: var(--dark-muted); font-size: 15.5px; }

.step-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.step-accent .step-num { -webkit-text-stroke-color: var(--accent-ink); }
.step-accent p { color: inherit; opacity: 0.88; }

.steps-footnote {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 32px;
  font-size: 17px;
  color: var(--dark-muted);
}
.steps-footnote strong { color: var(--dark-ink); }
.steps-footnote .plus {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--accent);
}

/* About */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pillar {
  padding: 36px 28px 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.pillar-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 28px;
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.pillar h3 {
  font-size: 24px;
  margin-bottom: 12px;
}
.pillar p { color: var(--muted); font-size: 15.5px; }

.pillar-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.pillar-accent .pillar-icon { stroke: var(--accent-ink); }
.pillar-accent p { color: inherit; opacity: 0.88; }

.pillars-footnote {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 32px;
  font-size: 17px;
  color: var(--muted);
}
.pillars-footnote strong { color: var(--ink); }
.pillars-footnote .plus {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--accent);
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact-details {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
}
.contact-details li {
  display: flex;
  flex-direction: column;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.contact-details li:last-child { border-bottom: 1px solid var(--line); }
.cd-label {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-details a {
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
}
.contact-details a:hover { color: var(--accent); }
.contact-details li > span:not(.cd-label) { font-size: 18px; font-weight: 600; }

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 36px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field-full { grid-column: 1 / -1; }
.field label {
  font-size: 14px;
  font-weight: 600;
}
.optional { font-weight: 400; color: var(--muted); }

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.4 var(--font-body);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.field [aria-invalid="true"] { border-color: var(--accent); }

.form-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.form-hint { font-size: 13.5px; color: var(--muted); flex: 1 1 200px; }
.form-status {
  margin: 0;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 600;
  background: var(--bg);
  color: var(--ink-soft);
}
.form-status.is-error {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.form-status.is-success {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 12%, transparent);
}

.turnstile-box { min-height: 65px; }
.turnstile-box:empty { min-height: 0; }

.hp-field {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.btn:disabled { opacity: 0.6; cursor: progress; }

/* Footer ----------------------------------------------------------------- */

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  color: var(--muted);
}
.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px 40px;
  align-items: center;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 24px;
}
.footer-nav a { text-decoration: none; }
.footer-nav a:hover { color: var(--ink); }
.copyright { font-size: 13.5px; }

/* Reveal on scroll --------------------------------------------------------- */

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    transition-duration: 0.01ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

/* Responsive --------------------------------------------------------------- */

@media (max-width: 1080px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .training-layout { grid-template-columns: 1fr; }
  .formats { position: static; }
}

@media (max-width: 960px) {
  .menu-toggle { display: inline-grid; }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    padding: 12px var(--gutter) 24px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  }
  .site-nav.is-open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .site-nav a { padding: 14px 12px; font-size: 17px; border-radius: 10px; }
  .site-nav a.nav-cta { margin: 8px 0 0; text-align: center; }

  .hero { padding: 40px 0 72px; }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-visual { order: -1; max-width: 420px; margin: 0 auto; width: 100%; }

  .steps,
  .pillars { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 640px) {
  :root { --gutter: 16px; --header-h: 64px; }
  body { font-size: 16px; }

  .brand { gap: 8px; }
  .brand-mark { width: 32px; height: 22px; }
  .brand-name { font-size: 12px; }
  .header-inner { gap: 8px; }
  .header-tools { gap: 6px; }
  .lang-switch { padding: 2px; }
  .lang-switch a { min-width: 30px; height: 28px; padding: 0 7px; font-size: 12px; }
  .icon-btn { width: 36px; height: 36px; }

  :root { --section-pad: 80px; }
  .section-head { margin-bottom: 40px; }
  .lead { font-size: 17px; }

  .hero-actions .btn { flex: 1 1 100%; }

  .card-grid { grid-template-columns: 1fr; }

  /* Compact cards: icon/numeral sits beside the heading instead of on its own row */
  .card-grid,
  .steps,
  .pillars { gap: 12px; }
  .card,
  .step,
  .pillar {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    column-gap: 14px;
    padding: 20px;
  }
  .card-icon,
  .pillar-icon { width: 28px; height: 28px; margin: 0; }
  .step-num { margin: 0; font-size: 30px; }
  .card h3,
  .step h3,
  .pillar h3 { font-size: 17px; margin: 0; }
  .card p,
  .step p,
  .pillar p { grid-column: 1 / -1; margin-top: 10px; font-size: 15px; }

  .course { grid-template-columns: 36px 1fr; gap: 8px 12px; }
  .course .tag { grid-column: 2; justify-self: start; white-space: normal; }


  .contact-form { grid-template-columns: 1fr; padding: 24px 20px; }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; }
}

@media (max-width: 359px) {
  .brand-name { display: none; }
}