:root {
  --bg: #0a0a0a;
  --bg-card: #141414;
  --bg-secondary: #1e1e1e;
  --accent: #0078d4;
  --accent-dim: #005a9e;
  --text: #ffffff;
  --text-muted: #8a8a8a;
  --border: #2a2a2a;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 96px;

  --container: 1200px;
  --radius: 2px;
}

@font-face {
  font-family: 'Racama';
  src: url('../assets/fonts/Racama-Regular.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Racama', system-ui, sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}

.logo__dot {
  color: var(--accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color 0.15s, border-color 0.15s;
}

.nav__link:hover {
  color: var(--text);
}

.nav__link--cta {
  color: var(--accent);
  border-color: var(--accent);
}

.nav__link--cta:hover {
  background-color: var(--accent);
  color: var(--text);
}

.hero {
  padding-block: var(--space-xl);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero__inner {
  display: flex;
  align-items: flex-start;
}

.hero__heading {
  font-size: clamp(42px, 7vw, 88px);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -2px;
  margin-bottom: var(--space-md);
}

.ticker {
  display: inline-flex;
  vertical-align: bottom;
  overflow: hidden;
  height: 1em;
}

#ticker-word {
  display: block;
  color: var(--accent);
  transition: transform 0.4s ease, opacity 0.4s ease;
}

#ticker-word.is-exiting {
  transform: translateY(-100%);
  opacity: 0;
}

#ticker-word.is-entering {
  transform: translateY(100%);
  opacity: 0;
  transition: none;
}

.hero__sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.btn,
.btn--outline {
  display: inline-block;
  padding: 14px 36px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
}

.btn {
  background-color: var(--accent);
  color: var(--text);
  border: 2px solid var(--accent);
  transition: background-color 0.15s, border-color 0.15s;
}

.btn:hover {
  background-color: var(--accent-dim);
  border-color: var(--accent-dim);
}

.hero__decoration {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

.deco-block {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.deco-block--1 {
  width: 200px;
  height: 120px;
  border-left: 3px solid var(--accent);
}

.deco-block--2 {
  width: 160px;
  height: 80px;
  border-left: 3px solid var(--border);
  align-self: flex-end;
}

.deco-block--3 {
  width: 200px;
  height: 60px;
  border-left: 3px solid var(--accent);
  opacity: 0.4;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: var(--space-md);
}

.features {
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md);
}

.card--accent {
  border-left: 3px solid var(--accent);
}

.card__icon {
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.3px;
}

.card__text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

.how {
  padding-block: var(--space-lg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how__steps {
  display: flex;
  align-items: flex-start;
}

.how__step {
  flex: 1;
}

.how__num {
  display: block;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
  line-height: 1;
}

.how__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-top: 12px;
}

.how__text {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
  line-height: 1.6;
}

.how__connector {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  padding-top: 16px;
  opacity: 0.4;
  margin-inline: var(--space-sm);
}

.roles {
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.roles__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.role-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md) var(--space-sm);
  transition: border-color 0.15s;
}

.role-card:hover {
  border-color: var(--accent);
}

.role-card__label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: var(--space-sm);
}

.role-card__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.2px;
}

.role-card__text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.alpha-notice {
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 16px 32px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  text-align: center;
}

.alpha-notice__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1.5px;
  margin-right: 12px;
  vertical-align: middle;
}

.footer {
  padding-block: var(--space-md);
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copy {
  font-size: 13px;
  color: var(--text-muted);
}

.footer__nav {
  display: flex;
  gap: var(--space-sm);
}

.footer__link {
  font-size: 13px;
  color: var(--text-muted);
  transition: color 0.15s;
}

.footer__link:hover {
  color: var(--text);
}

.page--login,
.page--change-password,
.page--support,
.page--privacy,
.page--about,
.page--error {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.login-main,
.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-main {
  padding: var(--space-md);
}

.login-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 48px;
  max-width: 420px;
  width: 100%;
}

.login-card__badge {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1.5px;
  margin-bottom: var(--space-xs);
}

.login-card__heading {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}

.login-card__sub {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.input {
  width: 100%;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 12px 16px;
  font-family: 'Racama', system-ui, sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
}

.input::placeholder {
  color: var(--text-muted);
}

.input:focus {
  outline: none;
  border-color: var(--accent);
}

.login-hint {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
}

.login-hint__icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

.login-hint__text {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.55;
}

.btn--full {
  display: block;
  width: 100%;
  text-align: center;
}

.support-main {
  flex: 1;
}

.support-hero {
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.support-hero__heading {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.support-hero__sub {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.6;
}

.support-topics {
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.support-contact {
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.support-email {
  display: inline-block;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-xs);
  transition: color 0.15s;
}

.support-email:hover {
  color: var(--accent-dim);
}

.support-contact__note {
  font-size: 13px;
  color: var(--text-muted);
}

.support-checklist {
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.checklist {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.checklist__row {
  display: flex;
  align-items: center;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.checklist__num {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin-right: 16px;
  flex-shrink: 0;
}

.checklist__text {
  font-size: 15px;
  color: var(--text);
}

.privacy-main {
  flex: 1;
  max-width: 720px;
  width: 100%;
  margin-inline: auto;
  padding-block: var(--space-lg);
  padding-inline: var(--space-md);
}

.privacy-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.75px;
  margin-bottom: var(--space-xs);
}

.privacy-heading {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: var(--space-xs);
}

.privacy-meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.privacy-block {
  margin-bottom: 48px;
}

.privacy-section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  margin-bottom: var(--space-sm);
}

.privacy-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

.text-link {
  color: var(--accent);
  transition: color 0.15s;
}

.text-link:hover {
  color: var(--accent-dim);
}

.about-sub {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 48px;
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.error-content {
  text-align: center;
  max-width: 480px;
  margin: auto;
  padding: 64px 32px;
}

.error-code {
  font-size: 120px;
  font-weight: 700;
  color: var(--bg-secondary);
  line-height: 1;
  letter-spacing: -4px;
}

.error-heading {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-top: 24px;
}

.error-subtext {
  font-size: 15px;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.7;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
}

.btn--outline {
  background-color: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: border-color 0.15s, color 0.15s;
}

.btn--outline:hover {
  border-color: var(--accent);
  color: var(--text);
}

@media (max-width: 768px) {
  :root {
    --space-lg: 48px;
    --space-xl: 64px;
  }

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

  .hero__decoration {
    display: none;
  }

  .features__grid,
  .about-cards {
    grid-template-columns: 1fr;
  }

  .how__steps {
    flex-direction: column;
    gap: var(--space-md);
  }

  .how__connector {
    display: none;
  }

  .how__num {
    font-size: 32px;
  }

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

  .footer__inner {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: flex-start;
  }

  .nav__link:not(.nav__link--cta) {
    display: none;
  }
}