:root {
  --color-ink: #1c1a2e;
  --color-purple: #403c90;
  --color-purple-dark: #332f75;
  --color-teal: #00b1aa;
  --color-teal-dark: #00817b;
  --color-orange: #f39313;
  --color-red: #ea5045;
  --color-violet: #5c257f;
  --color-body-text: #55536e;
  --color-muted-text: #8886a0;
  --color-border: #e6e6f4;
  --color-surface: #ffffff;
  --color-surface-muted: #f4f4fb;
  --font-body: "Manrope", sans-serif;
  --font-display: "Onest", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --container-width: 1120px;
  --page-padding: 24px;
  --header-height: 70px;
  --radius-small: 11px;
  --radius-medium: 16px;
  --radius-large: 20px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body,
button,
input,
textarea,
select {
  font-family: var(--font-body);
}

h1,
h2,
h3,
p,
dl,
dd,
ol {
  margin: 0;
}

ol {
  padding: 0;
}

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

img {
  display: block;
  height: auto;
  max-width: 100%;
}

address {
  font-style: normal;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 4px;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--color-ink);
  color: #ffffff;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.display {
  font-family: var(--font-display);
  letter-spacing: -0.025em;
  line-height: 1.04;
}

.eyebrow {
  color: var(--color-purple);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  min-height: 49px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 15px 24px;
  border: 1px solid transparent;
  border-radius: 13px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

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

.button--primary {
  padding-inline: 26px;
  background: var(--color-purple);
  color: #ffffff;
}

.button--primary:hover {
  background: var(--color-purple-dark);
}

.button--secondary {
  border-color: #d2d4e6;
  background: transparent;
  color: var(--color-purple);
  font-weight: 600;
}

.button--secondary:hover {
  background: var(--color-surface-muted);
}

.button--teal {
  background: var(--color-teal);
  color: #ffffff;
}

.button--teal:hover {
  background: #009a94;
}

.button--full {
  width: 100%;
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 999px;
}

.dot--large {
  width: 11px;
  height: 11px;
}

.dot--purple {
  background: var(--color-purple);
}

.dot--teal {
  background: var(--color-teal);
}

.dot--orange {
  background: var(--color-orange);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid #eef0f6;
  background: rgb(255 255 255 / 85%);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  height: var(--header-height);
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  flex: none;
  align-items: center;
}

.brand__image {
  width: auto;
  height: 44px;
}

.header-menu {
  margin-left: auto;
}

.menu-toggle {
  display: none;
}

.site-nav,
.header-menu:not([open]) > .site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #4a4860;
  font-size: 14.5px;
  font-weight: 600;
}

.site-nav > a:not(.header-cta):hover {
  color: var(--color-purple);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: var(--radius-small);
  background: var(--color-purple);
  color: #ffffff;
  font-size: 14.5px;
  font-weight: 700;
}

.header-cta:hover {
  background: var(--color-purple-dark);
}

/* Hero */
.hero {
  padding: 72px 0 78px;
  border-bottom: 1px solid #e9e9f5;
  background: var(--color-surface-muted);
}

.hero__grid {
  display: grid;
  align-items: center;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
}

.hero__title {
  margin-top: 22px;
  color: var(--color-ink);
  font-size: 60px;
  font-weight: 800;
}

.hero__title em {
  color: var(--color-teal);
  font-style: normal;
}

.hero__lead {
  max-width: 520px;
  margin-top: 24px;
  color: var(--color-body-text);
  font-size: 19px;
  line-height: 1.6;
}

.text-nowrap {
  white-space: nowrap;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 30px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid #e0e2f0;
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.button-row {
  display: grid;
  width: min(100%, 434px);
  align-items: stretch;
  grid-template-columns: repeat(2, minmax(0, 210px));
  gap: 14px;
  margin-top: 34px;
}

.button-row .button {
  white-space: nowrap;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 34px;
}

.stats__value {
  color: var(--color-purple);
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
}

.stats__label {
  margin-top: 8px;
  color: var(--color-muted-text);
  font-size: 13.5px;
}

.event-card {
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: #ffffff;
  box-shadow: 0 40px 90px -50px rgb(40 40 90 / 50%);
}

.event-card__row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid #f0f0f7;
}

.event-card__row:first-child {
  padding-top: 0;
}

.event-card__row:last-child {
  border-bottom: 0;
}

.event-card__icon {
  display: flex;
  width: 40px;
  height: 40px;
  flex: none;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-small);
  font-size: 18px;
}

.event-card__icon--purple {
  background: #ecebf9;
}

.event-card__icon--teal {
  background: #e0f5f4;
}

.event-card__icon--orange {
  background: #fdeed7;
}

.event-card__icon--red {
  background: #fbe1df;
}

.event-card__label {
  color: var(--color-muted-text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.event-card__value {
  margin-top: 3px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
}

/* Shared sections */
.section {
  padding: 80px 0;
}

.section--muted {
  background: var(--color-surface-muted);
}

.section-heading {
  max-width: 640px;
}

.section-title {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section-description {
  margin-top: 12px;
  color: var(--color-muted-text);
  font-size: 16px;
  line-height: 1.55;
}

/* Participation formats */
.format-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 44px;
}

.format-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: 18px;
  background: #ffffff;
}

.format-card__title {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
}

.format-card__description {
  color: var(--color-body-text);
  font-size: 15px;
  line-height: 1.6;
}

.format-card__meta {
  margin-top: 4px;
  color: var(--color-teal-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Program */
.program-list {
  margin-top: 44px;
  border-top: 1px solid #eaeaf3;
  list-style: none;
}

.program-item {
  display: grid;
  align-items: start;
  grid-template-columns: 110px 8px minmax(0, 1fr);
  gap: 22px;
  padding: 24px 0;
  border-bottom: 1px solid #eaeaf3;
}

.program-item__time {
  padding-top: 2px;
  color: var(--color-purple);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
}

.program-item__track {
  width: 8px;
  min-height: 44px;
  align-self: stretch;
  border-radius: 999px;
}

.program-item__track--purple {
  background: var(--color-purple);
}

.program-item__track--teal {
  background: var(--color-teal);
}

.program-item__track--orange {
  background: var(--color-orange);
}

.program-item__track--red {
  background: var(--color-red);
}

.program-item__track--violet {
  background: var(--color-violet);
}

.program-item__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
}

.program-item__description {
  margin-top: 6px;
  color: #6f6d88;
  font-size: 15px;
  line-height: 1.5;
}

.program-item__meta {
  margin-top: 9px;
  color: var(--color-teal-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Speakers */
.speaker-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  margin-top: 44px;
}

.speaker-card {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.speaker-card__photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 999px;
  background: #eef0f8;
  object-fit: cover;
}

.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #eef0f8;
  background-image: repeating-linear-gradient(
    135deg,
    rgb(64 60 144 / 12%) 0 11px,
    rgb(64 60 144 / 4%) 11px 22px
  );
}

.placeholder span {
  padding-inline: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  line-height: 1.5;
  text-align: center;
  text-transform: uppercase;
  opacity: 0.7;
}

.speaker-card__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
}

.speaker-card__role {
  margin-top: 4px;
  color: var(--color-muted-text);
  font-size: 13.5px;
  line-height: 1.45;
}

/* Venue */
.venue-grid {
  display: grid;
  align-items: stretch;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  margin-top: 44px;
}

.map {
  min-height: 360px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: #e9e9f5;
}

.map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
}

.venue-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.venue-card {
  padding: 24px;
  border: 1px solid #e9e9f5;
  border-radius: var(--radius-medium);
  background: #ffffff;
}

.venue-card__label {
  color: var(--color-purple);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.venue-card__value {
  margin-top: 7px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.venue-info__link {
  margin-top: auto;
}

/* Registration */
.registration {
  background: var(--color-purple);
  color: #eef0fb;
}

.registration__inner {
  max-width: 688px;
  text-align: center;
}

.registration__eyebrow {
  color: #bfbeda;
}

.registration__title {
  color: #ffffff;
}

.registration__description {
  color: #bfbeda;
}

.registration__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
}

.registration__note {
  margin-top: 22px;
  color: #9a97c8;
  font-family: var(--font-mono);
  font-size: 12.5px;
}

/* Footer */
.site-footer {
  padding: 52px 0 40px;
  background: var(--color-ink);
  color: #c9c8dc;
}

.site-footer__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.footer-logo {
  display: inline-flex;
}

.footer-logo img {
  width: auto;
  height: 104px;
}

.site-footer__socials {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px;
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: 12px;
  background: rgb(255 255 255 / 5%);
  color: #ffffff;
  font-size: 14px;
  font-style: normal;
  font-weight: 600;
  line-height: 1;
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.social-link:hover {
  border-color: rgb(255 255 255 / 20%);
  background: rgb(255 255 255 / 10%);
  transform: translateY(-1px);
}

.social-link__icon {
  width: 32px;
  height: 32px;
  flex: none;
}

.site-footer__copyright {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgb(255 255 255 / 10%);
  color: #6a6788;
  font-family: var(--font-mono);
  font-size: 12.5px;
}

@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .hero__title {
    font-size: 44px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 30px;
  }

  .format-grid,
  .venue-grid {
    grid-template-columns: 1fr;
  }

  .speaker-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .header-menu {
    position: relative;
  }

  .menu-toggle {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border: 1px solid #d2d4e6;
    border-radius: var(--radius-small);
    background: #ffffff;
    color: var(--color-purple);
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    list-style: none;
  }

  .menu-toggle::-webkit-details-marker {
    display: none;
  }

  .menu-toggle__icon {
    fill: none;
    stroke: currentcolor;
    stroke-linecap: round;
    stroke-width: 2;
  }

  .header-menu[open] .menu-toggle {
    background: var(--color-surface-muted);
  }

  .header-menu > .site-nav,
  .header-menu[open] > .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    display: flex;
    width: min(320px, calc(100vw - 48px));
    align-items: stretch;
    flex-direction: column;
    gap: 4px;
    padding: 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    background: #ffffff;
    box-shadow: 0 18px 50px -20px rgb(40 40 90 / 45%);
  }

  .header-menu:not([open]) > .site-nav {
    display: none;
  }

  .site-nav > a:not(.header-cta) {
    padding: 10px 8px;
    border-radius: 8px;
  }

  .site-nav > a:not(.header-cta):hover {
    background: var(--color-surface-muted);
  }

  .header-cta {
    justify-content: center;
    margin-top: 6px;
  }
}

@media (max-width: 560px) {
  :root {
    --page-padding: 20px;
  }

  .brand__image {
    height: 40px;
  }

  .hero {
    padding: 54px 0 60px;
  }

  .hero__title {
    font-size: 36px;
  }

  .hero__lead {
    font-size: 17px;
  }

  .button-row {
    grid-template-columns: 1fr;
  }

  .stats {
    gap: 26px;
  }

  .event-card,
  .format-card {
    padding: 24px;
  }

  .program-item {
    grid-template-columns: 76px 6px minmax(0, 1fr);
    gap: 14px;
  }

  .program-item__track {
    width: 6px;
  }

  .speaker-grid {
    gap: 18px;
  }

  .site-footer__row {
    flex-direction: column;
  }

  .site-footer__socials {
    justify-content: flex-start;
  }
}

@media (max-width: 390px) {
  .menu-toggle__label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}