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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 400;
  color: #fff;
  background-color: #000;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

img {
  display: block;
}

:root {
  --color-bg: #1a1a1a;
  --color-surface: #0f0f0f;
  --color-card: #141414;
  --color-border: rgba(255, 255, 255, 0.1);
  --color-accent: #4cc43a;
  --color-white: #ffffff;
  --color-muted: rgba(255, 255, 255, 0.5);
  --color-muted-2: rgba(255, 255, 255, 0.15);

  --gradient-accent: linear-gradient(135deg, #4cc43a 0%, rgba(1, 71, 255, 0) 100%);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --section-py: 100px;
  --max-width: 1200px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.section-title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, background 0.2s;
  white-space: nowrap;
}

.btn--primary {
  padding: 14px 50px;
  background: var(--gradient-accent);
  color: var(--color-white);
  border-radius: var(--radius-lg);
}

.btn--primary:hover {
  opacity: 0.88;
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-border);
}

.btn--outline:hover {
  border-color: rgba(255, 255, 255, 0.35);
}

.btn--blue {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--blue:hover {
  opacity: 0.88;
}

.btn--sm {
  padding: 10px 18px;
  font-size: 13px;
}

.btn--full {
  width: 100%;
  justify-content: center;
}

.btn__icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.cf-turnstile {
  margin: 0 auto;
  padding: 10px 0;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.nav__logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: lowercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  transition: color 0.2s;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-white);
}

.hero {
  padding: 40px 0 30px;
  overflow: hidden;
}

.hero__inner {
  padding: 60px 30px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  min-height: 520px;
  background-color: var(--color-bg);
  border-radius: 50px;
  position: relative;
}

.hero__content {
  flex: 1;
}

.hero__eyebrow {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(48px, 7vw, 78px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero__title span {
  display: inline-block;
}

.hero__subtitle {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-white);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 440px;
  position: relative;
  z-index: 5;
}

.hero__visual {
  flex-shrink: 0;
  width: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero__sphere {
  width: 100%;
  max-width: 438px;
  opacity: 0.9;
  filter: drop-shadow(0 0 60px rgba(52, 147, 38, 0.25));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-20px);
  }
}

.cards {
  padding: 40px 0 var(--section-py);
}

.cards__inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  min-height: 220px;
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
}

.card__title {
  font-size: 20px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.card__text {
  font-size: 14px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  flex: 1;
}

.card--green {
  background: var(--color-accent);
}

.card--dark {
  background: #0a0a0a;
  border: 1px solid var(--color-border);
}

.attend {
  padding: var(--section-py) 0;
  border-top: 1px solid var(--color-border);
}

.attend__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 60px;
}

.attend__subtitle {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 380px;
  padding-top: 12px;
}

.attend__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  row-gap: 20px;
}

.attend__item {
  position: relative;
  overflow: hidden;
  padding: 32px 24px 96px 24px;
  width: 49%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.attend__item--result {
  width: 100%;
}

.attend__num {
  display: inline-block;
  position: absolute;
  bottom: -40px;
  right: 30px;
  font-size: 168px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  animation: glowPulse 4s ease-in-out infinite;
}

.attend__item--result .attend__num {
  bottom: -30px;
  font-size: 128px;
}

@keyframes glowPulse {

  0%,
  100% {
    text-shadow:
      0 0 30px rgba(52, 147, 38, 0.35),
      0 0 60px rgba(52, 147, 38, 0.25),
      0 0 100px rgba(52, 147, 38, 0.15);
  }

  50% {
    text-shadow:
      0 0 50px rgba(52, 147, 38, 0.7),
      0 0 100px rgba(52, 147, 38, 0.5),
      0 0 180px rgba(52, 147, 38, 0.35);
  }
}

.attend__item-title {
  font-size: 20px;
  font-weight: 700;
  text-transform: uppercase;
}

.attend__item-text {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.65;
  flex: 1;
}

.speakers {
  padding: var(--section-py) 0;
  border-top: 1px solid var(--color-border);
}

.speakers__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 20px;
}

.speakers__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  row-gap: 16px;
  perspective: 1000px;
}

.speaker-card {
  display: flex;
  width: 49%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-card);
  border: 1px solid var(--color-border);
}

.speaker-card__photo {
  width: 260px;
  flex-shrink: 0;
  position: relative;
}

.speaker-card__photo::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.15);
}

.speaker-card__photo img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.speaker-card__info {
  padding: 16px;
}

.speaker-card__name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}

.speaker-card__role {
  margin-bottom: 30px;
  font-size: 14px;
  color: rgba(76, 196, 58, 0.8);
  font-weight: 600;
}

.speaker-card__desc {
  font-size: 14px;
  font-weight: 400;
  opacity: 0.6;
}

.about {
  padding: var(--section-py) 0;
  border-top: 1px solid var(--color-border);
}

.about__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 60px;
  gap: 20px;
}

.about__meta {
  font-size: 13px;
  color: var(--color-muted);
  font-weight: 500;
  text-align: right;
  flex-shrink: 0;
}

.about__body {
  display: flex;
  gap: 60px;
  align-items: flex-start;
  position: relative;
}

.about__list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.about__item {
  display: grid;
  grid-template-columns: 140px 1px 1fr;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}

.about__item:first-child {
  border-top: 1px solid var(--color-border);
}

.about__day {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
}

.about__day-label {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about__divider {
  width: 1px;
  background: var(--color-border);
  min-height: 100%;
}

.about__topic {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about__topic--slice {
  flex-direction: row;
  flex-wrap: wrap;
}

.about__topic-title {
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

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

.about__topic-slice {
  font-size: 16px;
  color: var(--color-white);
  line-height: 1.65;
  border: 2px solid rgba(76, 196, 58, 0.6);
  border-radius: var(--radius-xl);
  padding: 12px 16px;
}

.about__decor {
  flex-shrink: 0;
  width: 300px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 20px;
}

.about__svg {
  width: 280px;
  opacity: 0.85;
}

.register {
  padding: var(--section-py) 0;
  border-top: 1px solid var(--color-border);
  overflow: hidden;
}

.register__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 60px;
}

.register__subtitle {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 380px;
  padding-top: 12px;
}

.register__timer-block {
  position: relative;
  margin-bottom: 56px;
  padding: 80px 40px;
  background: var(--color-bg);
  border-radius: var(--radius-xl);
}

.register__timer-label {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.register__timer {
  display: flex;
  align-items: flex-end;
  gap: 0;
  position: relative;
  z-index: 5;
}

.register__timer-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.register__timer-value {
  font-size: clamp(56px, 8vw, 136px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  min-width: 120px;
  text-align: center;
}

.register__timer-colon {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  line-height: 1;
  padding: 0 4px;
  padding-bottom: 28px;
  color: var(--color-muted);
}

.register__timer-sub {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.register__decor {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.register__svg {
  width: 300px;
  animation: spin 16s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.register__ticket {
  position: relative;
  display: flex;
  justify-content: center;
}

.ticket__decor {
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}

.ticket__decor--right {
  left: auto;
  right: 0;
}

.ticket__svg {
  max-width: 100%;
  animation: scaler 6s linear infinite;
}

@keyframes scaler {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(0.8);
  }

  100% {
    transform: scale(1);
  }
}

.ticket {
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  flex-basis: 800px;
}

.ticket__badge {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.ticket__desc {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  flex: 1;
}

.ticket__price {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: line-through;
}

.ticket__price--free {
  display: inline-block;
  margin-left: 20px;
  text-decoration: none;
  color: var(--color-accent);
  opacity: 0.8;
}

.register__form-block {
  max-width: 600px;
  margin: 0 auto;
}

.register__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.register__input,
.register__textarea {
  width: 100%;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: var(--color-white);
  outline: none;
  transition: border-color 0.2s;
  resize: none;
}

.register__input::placeholder,
.register__textarea::placeholder {
  color: var(--color-muted);
}

.register__input:focus,
.register__textarea:focus {
  border-color: rgba(255, 255, 255, 0.3);
}

.register__form-status {
  font-size: 20px;
  font-weight: 500;
  min-height: 20px;
  display: none;
  text-align: center;
}

.register__form-status--loading {
  display: block;
  color: var(--color-muted);
}

.register__form-status--success {
  display: block;
  color: #4ade80;
}

.register__form-status--error {
  display: block;
  color: #f87171;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.contacts {
  padding: var(--section-py) 0;
  border-top: 1px solid var(--color-border);
}

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

.contacts__info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contacts__info-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contacts__info-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

.contacts__socials {
  display: flex;
  gap: 20px;
  margin-top: 4px;
}

.contacts__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.contacts__social-link:hover {
  opacity: 1;
}

.contacts__social-link img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.footer {
  border-top: 1px solid var(--color-border);
}

.footer__bottom {
  padding: 20px 0;
  text-align: center;
}

.footer__copy {
  font-size: 12px;
  color: var(--color-muted);
}

@media screen and (max-width: 1200px) {
  .speaker-card {
    width: 100%;
  }
}

@media screen and (max-width: 960px) {
  .hero__visual {
    width: 300px;
  }

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

  .about__body {
    position: relative;
  }

  .about__decor {
    position: absolute;
    top: -210px;
    right: 0;
  }

  .about__decor,
  .about__svg {
    width: 180px;
  }

  .register__timer-block {
    padding: 40px 20px;
  }

  .register__svg {
    width: 200px;
  }

  .register__timer-label {
    margin-bottom: 0;
  }

  .register__timer-value {
    font-size: 12vw;
  }

  .ticket {
    background: rgba(20, 20, 20, 0.9);
  }

  .ticket__decor {
    display: none;
  }
}

@media screen and (max-width: 760px) {
  :root {
    --section-py: 50px;
  }

  .nav__inner {
    justify-content: center;
  }

  .nav__links {
    display: none;
  }

  .hero__inner {
    align-items: flex-start;
    padding: 40px 20px;
  }

  .hero__visual {
    width: 260px;
    position: absolute;
    bottom: 0;
    right: 0;
  }

  .hero__subtitle {
    max-width: 360px;
  }

  .attend__subtitle,
  .register__subtitle {
    padding-top: 0;
  }

  .attend__item--result .attend__num {
    font-size: 90px;
    right: -40px;
  }

  .about__header {
    margin-bottom: 40px;
  }

  .about__decor,
  .about__svg {
    display: none;
  }
}

@media screen and (max-width: 580px) {
  :root {
    --section-py: 30px;
  }

  .container {
    padding: 40px 20px;
  }

  .hero__visual {
    width: 180px;
  }

  .cards {
    padding: 0;
  }

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

  .attend__header,
  .register__header {
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
  }

  .attend__item {
    width: 100%;
  }

  .attend__item--result .attend__num {
    font-size: 70px;
    bottom: -10px;
  }

  .speakers__grid {
    justify-content: center;
  }

  .speaker-card {
    flex-direction: column;
    width: 70%;
  }

  .speaker-card__photo {
    width: 100%;
  }

  .about__item {
    display: flex;
    flex-direction: column;
  }

  .about__day {
    text-decoration: underline;
  }

  .about__divider {
    display: none;
  }

  .register__decor {
    z-index: 5;
    top: 230px;
  }

  .register__svg {
    width: 160px;
  }

  .contacts__inner {
    gap: 20px;
  }
}

@media screen and (max-width: 480px) {
  .hero__title {
    font-size: 36px;
  }

  .speaker-card {
    width: 100%;
  }

  .attend__item--result .attend__num {
    font-size: 60px;
    right: -60px;
  }

  .register__timer-label {
    text-align: center;
  }

  .register__timer {
    justify-content: center;
  }

  .register__timer-value {
    min-width: 80px;
  }
}