:root {
  --bg: #f2f4f5;
  --surface: #fff;
  --soft: #e9edef;
  --text: #172126;
  --muted: #617078;
  --line: #d5dcdf;
  --accent: #275e68;
  --strong: #19434c;
  --inverse: #fff;
  --header: rgba(242,244,245,.91);
  --shadow: 0 18px 55px rgba(21,37,42,.09);
}

html[data-theme=dark] {
  --bg: #111619;
  --surface: #182024;
  --soft: #202a2f;
  --text: #eef3f4;
  --muted: #a9b6ba;
  --line: #324047;
  --accent: #80b8bd;
  --strong: #a3d0d3;
  --inverse: #111719;
  --header: rgba(17,22,25,.91);
  --shadow: 0 18px 55px rgba(0,0,0,.25);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15.5px/1.68 Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  transition: .25s;
}

a {
  color: inherit;
  text-decoration: none;
}

.technical-bar {
  background: #f2c94c;
  color: #251f0b;
  border-bottom: 1px solid #bd9417;
  box-shadow: 0 2px 10px rgba(91,68,0,.18);
}

.technical-bar[hidden] {
  display: none;
}

.technical-bar-row {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .01em;
  text-align: center;
}

.technical-bar-label {
  padding: 3px 8px;
  background: #251f0b;
  color: #fff8dc;
  border: 1px solid #251f0b;
  border-radius: 99px;
  font-size: .66rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.shell {
  width: min(1160px,calc(100% - 42px));
  margin: auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.header-row {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  font-weight: 900;
  letter-spacing: .08em;
  white-space: nowrap;
}

.brand b {
  color: var(--accent);
}

nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
  color: var(--muted);
  font-size: .77rem;
  font-weight: 800;
}

nav a:hover {
  color: var(--text);
}

nav a[aria-current=page] {
  color: var(--accent);
}

nav .nav-contact {
  margin: -7px 0;
  padding: 7px 12px;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
}

nav .nav-contact:hover,
nav .nav-contact[aria-current=page] {
  color: var(--inverse);
  border-color: var(--strong);
  background: var(--strong);
}

.menu-toggle {
  display: none;
  min-height: 38px;
  padding: 0 11px;
  align-items: center;
  gap: 8px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  font: 800 .72rem/1 Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  cursor: pointer;
}

.menu-toggle-icon {
  width: 18px;
  display: grid;
  gap: 4px;
}

.menu-toggle-icon span {
  width: 18px;
  height: 2px;
  display: block;
  background: currentColor;
  border-radius: 2px;
  transition: transform .2s,opacity .2s;
}

.menu-toggle[aria-expanded=true] .menu-toggle-icon span:first-child {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded=true] .menu-toggle-icon span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded=true] .menu-toggle-icon span:last-child {
  transform: translateY(-6px) rotate(-45deg);
}

.theme {
  display: flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--soft);
  cursor: pointer;
}

.theme span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--muted);
}

.theme .active {
  background: var(--surface);
  color: var(--accent);
  box-shadow: 0 2px 6px #0002;
}

.theme svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero {
  padding: 76px 0 68px;
  background: linear-gradient(145deg,var(--bg),var(--soft));
  border-bottom: 1px solid var(--line);
}

.ca-main {
  min-height: calc(100vh - 170px);
}

.ca-hero {
  padding: 68px 0 82px;
  background: linear-gradient(145deg,var(--bg),var(--soft));
}

.ca-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 36px;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 800;
}

.ca-back:hover {
  color: var(--accent);
}

.ca-heading {
  max-width: 720px;
  margin-bottom: 40px;
}

.ca-heading h1 {
  margin: 6px 0 12px;
  font-size: clamp(2.3rem,5vw,3.5rem);
}

.ca-heading p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.ca-layout {
  display: grid;
  grid-template-columns: minmax(0,1.05fr) minmax(0,.95fr);
  gap: 22px;
  align-items: stretch;
}

.certificate-card,.ca-instruction {
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.certificate-top {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
}

.certificate-icon {
  width: 54px;
  height: 54px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--soft);
  color: var(--accent);
}

.certificate-icon svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.certificate-top h2 {
  margin: 0 0 4px;
  font-size: 1.2rem;
}

.certificate-top p {
  margin: 0;
  color: var(--muted);
  font-size: .78rem;
}

.certificate-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 26px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.certificate-meta div {
  padding: 17px 0;
}

.certificate-meta div+div {
  padding-left: 22px;
  border-left: 1px solid var(--line);
}

.certificate-meta span {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: .67rem;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.certificate-meta strong {
  font-size: .9rem;
}

.certificate-download {
  width: 100%;
}

.ca-instruction h2 {
  margin: 0 0 18px;
  font-size: 1.15rem;
}

.ca-instruction ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: instruction;
}

.ca-instruction li {
  position: relative;
  min-height: 34px;
  padding: 4px 0 16px 46px;
  color: var(--muted);
  counter-increment: instruction;
}

.ca-instruction li:last-child {
  padding-bottom: 0;
}

.ca-instruction li::before {
  content: counter(instruction);
  position: absolute;
  left: 0;
  top: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--soft);
  color: var(--accent);
  font-size: .72rem;
  font-weight: 900;
}

.ai-main {
  min-height: calc(100vh - 170px);
}

.ai-hero {
  padding: 68px 0 82px;
  background: linear-gradient(145deg,var(--bg),var(--soft));
}

.ai-heading {
  max-width: 820px;
  margin-bottom: 40px;
}

.ai-heading h1 {
  margin: 6px 0 14px;
  font-size: clamp(2.25rem,5vw,3.45rem);
}

.ai-heading p:last-child {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.ai-intro-grid {
  display: grid;
  grid-template-columns: minmax(0,1.12fr) minmax(0,.88fr);
  gap: 18px;
}

.ai-copy,.ai-control-card,.ai-capabilities {
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.ai-copy {
  display: grid;
  align-content: center;
  gap: 18px;
}

.ai-copy p,.ai-control-card>p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
}

.ai-copy strong {
  color: var(--text);
}

.ai-control-card {
  border-top: 4px solid var(--accent);
}

.ai-control-card h2 {
  margin: 0 0 14px;
  font-size: 1.45rem;
}

.ai-statement {
  display: block;
  margin-top: 24px;
  padding-top: 20px;
  color: var(--accent);
  border-top: 1px solid var(--line);
  font-size: .9rem;
  line-height: 1.55;
}

.ai-capabilities {
  margin-top: 18px;
}

.ai-capabilities h2 {
  margin-bottom: 24px;
  font-size: 1.65rem;
}

.ai-capabilities ul {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 10px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ai-capabilities li {
  position: relative;
  padding: 14px 16px 14px 44px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--muted);
  font-size: .84rem;
}

.ai-capabilities li::before {
  content: "✓";
  position: absolute;
  left: 15px;
  top: 13px;
  color: var(--accent);
  font-weight: 900;
}

.courses-main {
  min-height: calc(100vh - 170px);
}

.courses-hero {
  min-height: calc(100vh - 170px);
  padding: 68px 0 82px;
  background: linear-gradient(145deg,var(--bg),var(--soft));
}

.courses-heading {
  max-width: 800px;
  margin: 34px 0 38px;
}

.courses-heading h1 {
  margin: 6px 0 14px;
  font-size: clamp(2.2rem,5vw,3.35rem);
}

.courses-heading>p:last-child {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 18px;
}

.course-card {
  position: relative;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.course-status {
  position: absolute;
  top: 24px;
  right: 24px;
  padding: 5px 9px;
  background: var(--soft);
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: .65rem;
  font-weight: 900;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.course-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 30px;
  background: var(--soft);
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 11px;
  font-size: .72rem;
  font-weight: 900;
}

.course-card h2 {
  margin-bottom: 13px;
  font-size: 1.42rem;
}

.course-card p {
  margin: 0;
  color: var(--muted);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 65px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: .71rem;
  font-weight: 900;
  letter-spacing: .13em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0 0 22px;
  font-size: clamp(1.85rem,3vw,2.85rem);
  line-height: 1.15;
  letter-spacing: -.04em;
}

h2 {
  margin: 0;
  font-size: clamp(1.65rem,3vw,2.45rem);
  line-height: 1.18;
  letter-spacing: -.04em;
}

.lead,.section-head>p,.security-copy>p:not(.eyebrow),.contact-copy>p {
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  font-size: .84rem;
  cursor: pointer;
}

.primary {
  background: var(--strong);
  color: var(--inverse);
}

.secondary {
  background: var(--surface);
  border-color: var(--line);
}

.profile {
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.status {
  color: var(--accent);
  font-size: .72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.status:before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border-radius: 50%;
  background: #3ca675;
  box-shadow: 0 0 0 5px #3ca67522;
}

.profile h2 {
  margin: 27px 0 10px;
  font-size: 1.35rem;
}

.profile p {
  color: var(--muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 22px;
}

.tags span {
  padding: 6px 9px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: .71rem;
  font-weight: 800;
}

.profile-course {
  width: 100%;
  margin-top: 18px;
}

.profile-course:hover {
  border-color: var(--accent);
  color: var(--accent);
}

section {
  padding: 82px 0;
}

.tinted {
  background: var(--soft);
  border-block: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: 1fr .72fr;
  gap: 55px;
  align-items: end;
  margin-bottom: 32px;
}

.cards3 {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 15px;
}

.card {
  display: flex;
  flex-direction: column;
  min-height: 260px;
  padding: 25px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 13px;
  transition: .2s;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.number {
  color: var(--accent);
  font-size: .7rem;
  font-weight: 900;
}

.card h3 {
  margin: 43px 0 10px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: .89rem;
}

.card a {
  margin-top: auto;
  padding-top: 20px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 900;
}

.opt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.opt {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 13px;
  padding: 19px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.opt h3 {
  margin: 0 0 4px;
  font-size: .91rem;
}

.opt p {
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
}

.security {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 75px;
}

.security-mark {
  margin-top: 36px;
  font-size: 2rem;
  font-weight: 900;
}

.security-mark b {
  color: var(--accent);
  margin: 0 8px;
}

.security-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 13px;
}

.security-grid article {
  display: flex;
  gap: 13px;
  padding: 21px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 11px;
}

.check {
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--soft);
  color: var(--accent);
  font-weight: 900;
}

.security-grid h3 {
  margin: 1px 0 5px;
  font-size: .93rem;
}

.security-grid p {
  margin: 0;
  color: var(--muted);
  font-size: .81rem;
}

.workshops {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.workshops article {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  gap: 13px;
  align-items: center;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.workshops h3 {
  margin: 0;
  font-size: .92rem;
}

.workshops p {
  grid-column: 2;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: .81rem;
}

.workshops a {
  grid-row: 1/3;
  grid-column: 3;
  color: var(--accent);
  font-size: 1.2rem;
}

.contact {
  background: var(--soft);
  border-top: 1px solid var(--line);
}

.contact-page-main {
  min-height: calc(100vh - 170px);
}

.contact-page {
  min-height: calc(100vh - 170px);
  background: linear-gradient(145deg,var(--bg),var(--soft));
}

.contact-page-header {
  max-width: 760px;
  margin-bottom: 42px;
}

.contact-page-header h1 {
  margin: 6px 0 12px;
  font-size: clamp(2.2rem,5vw,3.3rem);
}

.contact-page-header>p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 68px;
}

.contact-data {
  margin-top: 30px;
  display: grid;
  gap: 10px;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 54px;
  padding: 10px 12px 10px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 9px;
}

.contact-label {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 800;
}

.contact-reveal-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 120px;
}

.contact-reveal {
  min-width: 86px;
  min-height: 34px;
  padding: 0 12px;
  background: var(--soft);
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 7px;
  font: 800 .72rem/1 inherit;
  cursor: pointer;
}

.contact-reveal:hover {
  border-color: var(--accent);
}

.contact-reveal:disabled {
  cursor: wait;
  opacity: .7;
}

.contact-reveal.is-error {
  color: #a23838;
  border-color: color-mix(in srgb,#a23838 50%,var(--line));
}

.contact-value {
  color: var(--accent);
  font-size: .84rem;
  font-weight: 800;
  word-break: break-word;
}

.contact-value:hover {
  text-decoration: underline;
}

.contact-location {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: .8rem;
}

.form {
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.form-fields {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.form-fields[hidden] {
  display: none;
}

.form.is-disabled .form-fields {
  display: none;
}

.form-disabled {
  padding: 22px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 10px;
}

.form-disabled[hidden] {
  display: none;
}

.form-disabled h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.form-disabled p {
  margin: 0;
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.65;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 13px;
}

.form label {
  display: block;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: .75rem;
  font-weight: 800;
}

.form input,.form select,.form textarea {
  display: block;
  width: 100%;
  margin-top: 7px;
  padding: 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 7px;
  font: inherit;
  outline: 0;
}

.form input:focus,.form select:focus,.form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent);
}

.consents {
  display: grid;
  gap: 12px;
  margin: 4px 0 20px;
}

.form .consent-option {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
  margin: 0;
  font-size: .78rem;
  font-weight: 650;
  line-height: 1.5;
  cursor: pointer;
}

.form .consent-option input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  padding: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.success {
  display: none;
  color: #39946d;
  font-size: .81rem;
}

.success.is-error {
  color: #b63f3f;
}

.form.has-result {
  min-height: 160px;
  display: flex;
  align-items: center;
}

.form.has-result .success {
  width: 100%;
  margin: 0;
  padding: 22px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-left: 4px solid currentColor;
  border-radius: 10px;
  font-size: .94rem;
  font-weight: 800;
  line-height: 1.55;
}

.license-main {
  min-height: calc(100vh - 170px);
  background: linear-gradient(145deg,var(--bg),var(--soft));
}

.license-activation {
  min-height: calc(100vh - 170px);
  display: grid;
  place-items: center;
  padding: 64px 20px 78px;
}

.license-card {
  width: min(100%,600px);
  padding: 42px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.license-card .ca-back {
  margin-bottom: 28px;
}

.license-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  background: var(--soft);
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.license-card h1 {
  margin: 0 0 10px;
  font-size: clamp(1.85rem,4vw,2.35rem);
}

.license-description {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 1rem;
}

.license-info {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: .86rem;
}

.license-form-group {
  margin-bottom: 20px;
}

.license-form-group label {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: .82rem;
  font-weight: 800;
}

.license-form-group textarea {
  width: 100%;
  min-height: 118px;
  padding: 14px 15px;
  resize: vertical;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: 0;
  font: inherit;
  font-size: .86rem;
  transition: border-color .2s,box-shadow .2s;
}

.license-form-group textarea::placeholder {
  color: var(--muted);
  opacity: .72;
}

.license-form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb,var(--accent) 14%,transparent);
}

.license-input-footer {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  margin-top: 8px;
  color: var(--muted);
  font-size: .72rem;
  line-height: 1.45;
}

#char-counter {
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.activation-message {
  display: none;
  margin-bottom: 16px;
  padding: 12px 14px;
  border-radius: 9px;
  font-size: .8rem;
  line-height: 1.5;
}

.activation-message.is-success {
  display: block;
  background: color-mix(in srgb,#3ca675 13%,var(--surface));
  color: color-mix(in srgb,#3ca675 75%,var(--text));
  border: 1px solid color-mix(in srgb,#3ca675 38%,var(--line));
}

.activation-message.is-error {
  display: block;
  background: color-mix(in srgb,#b63f3f 11%,var(--surface));
  color: color-mix(in srgb,#b63f3f 78%,var(--text));
  border: 1px solid color-mix(in srgb,#b63f3f 34%,var(--line));
}

.activate-button {
  width: 100%;
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 20px;
  background: var(--strong);
  color: var(--inverse);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  font-family: inherit;
  font-size: .84rem;
  font-weight: 800;
  transition: transform .15s,box-shadow .2s,opacity .2s;
}

.activate-button:hover {
  box-shadow: 0 10px 24px color-mix(in srgb,var(--strong) 26%,transparent);
}

.activate-button:active {
  transform: translateY(1px);
}

.activate-button:focus-visible {
  outline: 3px solid color-mix(in srgb,var(--accent) 40%,transparent);
  outline-offset: 3px;
}

.activate-button:disabled {
  opacity: .72;
  cursor: wait;
  box-shadow: none;
}

.button-loader {
  display: none;
  width: 17px;
  height: 17px;
  border: 2px solid color-mix(in srgb,var(--inverse) 35%,transparent);
  border-top-color: var(--inverse);
  border-radius: 50%;
  animation: license-spinner .7s linear infinite;
}

.activate-button.is-loading .button-text,
.activate-button.is-loading .button-arrow {
  display: none;
}

.activate-button.is-loading .button-loader {
  display: block;
}

@keyframes license-spinner {
  to {
    transform: rotate(360deg);
  }
}

.license-note {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-top: 22px;
  padding: 13px 14px;
  background: var(--soft);
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: .74rem;
  line-height: 1.5;
}

.license-note svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.footer {
  padding: 25px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .74rem;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-primary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px 18px;
}

.footer-link {
  color: var(--text);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 4px;
}

.footer-link:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

@media(max-width:950px) {
  .header-row {
    padding: 14px 0;
    flex-wrap: wrap;
    gap: 10px;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .header .main-nav {
    display: none;
    order: 3;
    width: 100%;
    margin-left: 0;
    padding-top: 5px;
    grid-template-columns: repeat(2,minmax(0,1fr));
    gap: 8px;
  }

  .header .main-nav.is-open {
    display: grid;
  }

  .main-nav a {
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 10px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--text);
    text-align: center;
  }

  .main-nav a:hover,
  .main-nav a[aria-current=page] {
    color: var(--accent);
    border-color: var(--accent);
  }

  .main-nav .nav-contact {
    grid-column: 1 / -1;
    margin: 0;
    padding: 8px 10px;
  }

  .main-nav a:nth-last-child(2) {
    grid-column: 1 / -1;
  }

  .main-nav .nav-contact[aria-current=page] {
    color: var(--inverse);
    border-color: var(--strong);
  }

  .hero-grid,.security,.contact-grid,.ai-intro-grid,.courses-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .ca-layout {
    grid-template-columns: 1fr;
  }
  .cards3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media(max-width:650px) {
  .shell {
    width: calc(100% - 28px);
  }
  .technical-bar-row {
    min-height: 52px;
    padding: 8px 0;
    flex-direction: column;
    gap: 4px;
  }
  .hero {
    padding: 54px 0;
  }
  .ca-hero {
    padding: 44px 0 62px;
  }
  .ai-hero {
    padding: 44px 0 62px;
  }
  .courses-hero {
    padding: 44px 0 62px;
  }
  .contact-page {
    padding: 44px 0 62px;
  }
  .license-activation {
    padding: 32px 14px 52px;
  }
  .license-card {
    padding: 28px 22px;
    border-radius: 14px;
  }
  .license-input-footer {
    flex-direction: column;
    gap: 3px;
  }
  h1 {
    font-size: 2rem;
  }
  .section-head {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .cards3,.opt-grid,.security-grid,.workshops,.field-row,.ai-capabilities ul {
    grid-template-columns: 1fr;
  }
  .actions {
    flex-direction: column;
  }
  .button {
    width: 100%;
  }
  .certificate-card,.ca-instruction,.ai-copy,.ai-control-card,.ai-capabilities,.course-card {
    padding: 22px;
  }
  .course-status {
    top: 18px;
    right: 18px;
  }
  .certificate-meta {
    grid-template-columns: 1fr;
  }
  .certificate-meta div+div {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
  .contact-item {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .contact-reveal-row {
    width: 100%;
    justify-content: flex-start;
  }
  .contact-reveal {
    width: 100%;
  }
  .footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .theme {
    margin-left: 0;
  }
  section {
    padding: 62px 0;
  }
}

@media(prefers-reduced-motion:reduce) {
  * {
    scroll-behavior: auto!important;
    transition: none!important;
  }
}

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

.captcha-field {
  margin: 4px 0 18px;
}

.captcha-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0 10px;
}

.captcha-row img {
  display: block;
  width: 220px;
  max-width: 100%;
  height: 70px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #e8edef;
}

.captcha-refresh {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--soft);
  color: var(--text);
  font: 700 .78rem inherit;
  cursor: pointer;
}

.captcha-refresh:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.captcha-field input {
  max-width: 260px;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 700;
}

@media(max-width:650px) {
  .captcha-row {
    align-items: flex-start;
    flex-direction: column;
  }
  .captcha-refresh {
    width: 100%;
  }
  .captcha-field input {
    max-width: none;
  }
}