/* ----- Base ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #111;
  line-height: 1.5;
  overflow-x: hidden;
  min-width: 0;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ----- Variables ----- */
:root {
  --accent: #FFC000;
  --accent-dark: #E6AB00;
  --black: #0a0a0a;
  --gray-900: #171717;
  --gray-700: #404040;
  --gray-500: #737373;
  --gray-300: #d4d4d4;
  --white: #fafafa;
  --max-width: 1200px;
  --section-pad: clamp(3rem, 6vw, 5rem);
}

/* ----- Header ----- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: transparent;
  transition: background 0.3s;
}
.header.scrolled { background: rgba(10, 10, 10, 0.9); backdrop-filter: blur(8px); }

.header__logo {
  font-weight: 600;
  color: #fff;
  font-size: 1.1rem;
}
.header__menu-btn {
  width: 28px;
  height: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #fff;
}
.header__menu-btn span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.3s;
}
.header__menu-btn[aria-expanded="true"] span:first-child {
  transform: translateY(9px) rotate(45deg);
}
.header__menu-btn[aria-expanded="true"] span:last-child {
  transform: translateY(-9px) rotate(-45deg);
}

.header__nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(280px, 85vw);
  background: var(--black);
  padding: 5rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transform: translateX(100%);
  transition: transform 0.3s;
  z-index: 99;
}
.header__nav.is-open { transform: translateX(0); }

.header__nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 98;
}
.header__nav-overlay.is-open { opacity: 1; visibility: visible; }
.header__nav a {
  color: #fff;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}
.header__nav-cta {
  margin-top: auto;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #111 !important;
  text-align: center;
  border-radius: 999px;
  font-weight: 600;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--black);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.hero__force-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero__force-field canvas {
  display: block;
  vertical-align: middle;
}

.hero__blobs {
  position: absolute;
  inset: 0;
  z-index: 1;
}
.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  mix-blend-mode: screen;
  will-change: transform;
}
.hero__blob--1 {
  width: 60vmin;
  height: 60vmin;
  background: radial-gradient(circle, #1e1e24 0%, transparent 70%);
  top: -20%;
  right: -10%;
  animation: blob1 18s ease-in-out infinite;
}
.hero__blob--2 {
  width: 50vmin;
  height: 50vmin;
  background: radial-gradient(circle, #12121a 0%, transparent 70%);
  bottom: -15%;
  left: -15%;
  animation: blob2 22s ease-in-out infinite;
}
.hero__blob--3 {
  width: 40vmin;
  height: 40vmin;
  background: radial-gradient(circle, #1a1a20 0%, transparent 70%);
  top: 40%;
  left: 30%;
  animation: blob3 15s ease-in-out infinite;
}
@keyframes blob1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-5%, -8%) scale(1.05); }
  66% { transform: translate(3%, 5%) scale(0.98); }
}
@keyframes blob2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(8%, -5%) scale(1.08); }
}
@keyframes blob3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(4%, 6%) scale(1.03); }
  66% { transform: translate(-6%, -3%) scale(0.97); }
}

.hero__grain {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.06;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 2rem;
  width: 100%;
  max-width: 100%;
}
.hero__title-wrap {
  width: 100%;
  max-width: min(90vw, 1200px);
  margin: 0 auto;
  position: relative;
}
.hero__wavy-icon {
  position: relative;
  z-index: 2;
  margin-bottom: 0.25rem;
  color: var(--accent);
  display: flex;
  justify-content: center;
}
.hero__wavy-icon svg { width: 56px; height: 28px; display: block; }
.hero__wavy-icon .wave-path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
  animation: drawWave 2s ease-out forwards, floatWave 4s ease-in-out 2s infinite;
}
@keyframes drawWave { to { stroke-dashoffset: 0; } }
@keyframes floatWave {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(-3px); opacity: 0.85; }
}

.hero__title {
  font-size: clamp(3.5rem, 14vw, 9rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.03em;
  white-space: nowrap;
}
.hero__title-mod {
  letter-spacing: -0.04em;
  margin-left: -0.04em;
}
.hero__tagline {
  font-size: clamp(1.1rem, 3vw, 1.75rem);
  font-weight: 500;
  opacity: 0.95;
  margin-top: 0;
  margin-bottom: 0.5rem;
  letter-spacing: 0.01em;
  max-width: 100%;
}
.hero__intro {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 500;
  opacity: 0.9;
  margin-top: 0.75rem;
  margin-bottom: 0;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: 0.01em;
  max-width: 76ch;
  line-height: 1.4;
  text-align: center;
}
.hero__cta {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: #111;
  font-weight: 600;
  border-radius: 999px;
  transition: transform 0.2s, filter 0.2s;
}
.hero__cta:hover { transform: scale(1.02); filter: brightness(1.05); }

.hero__meta {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  padding: 1rem 2rem;
  font-size: 1.8rem;
  gap: 1rem;
  background: rgba(0, 0, 0, 0.75);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.hero__meta span {
  opacity: 0.95;
  white-space: nowrap;
  text-align: center;
}
@media (max-width: 900px) {
  .hero__meta {
    font-size: 1.25rem;
    padding: 0.85rem 1rem;
    grid-template-columns: 1fr;
  }
}
@media (max-width: 600px) {
  .hero__meta {
    font-size: 1rem;
    gap: 0.35rem;
  }
}

/* ----- Section common ----- */
.section {
  width: 100%;
  padding: var(--section-pad) clamp(1.5rem, 4vw, 3rem);
}
.section--light { background: var(--white); color: #111; }
.section--dark { background: var(--black); color: #fff; }

.section__label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--gray-500);
  margin-bottom: 0.5rem;
}
.section__label--light { color: var(--gray-500); }
.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}
.section__title.section__title--light { color: #fff; }
.section__subtitle {
  font-size: 1rem;
  color: var(--gray-600, var(--gray-500));
  max-width: 560px;
  margin-bottom: 2rem;
}
.section__subtitle--light { color: var(--gray-400, #a3a3a3); }

/* ----- About ----- */
.about__tagline {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 500;
  max-width: 720px;
  margin-bottom: 2rem;
}
.about__tagline strong { font-weight: 700; color: #111; }
.about__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
@media (max-width: 640px) {
  .about__stats { grid-template-columns: repeat(2, 1fr); }
}
.about__stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
}
.about__stat-num {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
}
.about__stat-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.about__stat-icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
}
.about__stat-icon svg {
  width: 100%;
  height: 100%;
}
.about__stat-label {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--gray-500);
}

/* ----- What's on ----- */
.whatson__header {
  display: flex;
  align-items: baseline;
  gap: 0.5em;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.whatson__header .section__title { margin-bottom: 0; flex-shrink: 0; }
.whatson__header-subtitle {
  font-size: 1.1rem;
  color: var(--gray-600);
  line-height: 1.5;
  margin: 0;
  flex: 1;
  min-width: 200px;
}
@media (max-width: 700px) {
  .whatson__header { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
}
.whatson__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (max-width: 900px) {
  .whatson__cards { grid-template-columns: 1fr; }
}
.whatson__card {
  background: var(--gray-300);
  padding: 2.5rem;
  border-radius: 16px;
  position: relative;
  min-height: 260px;
  display: flex;
  flex-direction: column;
}
.whatson__card-num {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
}
.whatson__card-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.whatson__card p {
  font-size: 1.2rem;
  color: var(--gray-700);
  line-height: 1.6;
  flex-grow: 1;
}
.whatson__cta-block {
  padding: 2rem;
  background: linear-gradient(145deg, #0f0f0f 0%, #1a1a1a 50%, #0a0a0a 100%);
  color: #fff;
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}
.whatson__cta-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
}
.whatson__cta-block-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 140px;
  justify-content: space-between;
}
.whatson__cta-header {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}
.whatson__cta-icon {
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.9);
}
.whatson__cta-icon svg { width: 32px; height: 14px; display: block; }
.whatson__cta-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  letter-spacing: -0.02em;
  text-align: center;
}
.whatson__cta-wave {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
.whatson__cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  padding: 0.875rem 1.75rem;
  background: #fff;
  color: #111;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: none;
  border-radius: 999px;
  margin-top: 1.5rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.whatson__cta-btn:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}
.whatson__cta-btn:active { transform: scale(0.98); }

/* ----- Buttons / links ----- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s, filter 0.2s;
}
.btn--primary {
  background: var(--accent);
  color: #111;
}
.btn--primary:hover { transform: scale(1.02); filter: brightness(1.1); }
.btn--outline {
  border: 2px solid #fff;
  color: #fff;
}
.btn--outline:hover { background: rgba(255,255,255,0.1); }

.link-arrow {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 600;
}
.link-arrow:hover { text-decoration: underline; }

/* ----- Speakers ----- */
.speakers__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 1rem;
}
@media (max-width: 900px) {
  .speakers__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .speakers__grid { grid-template-columns: 1fr; }
}
.speaker-card__img-wrap {
  margin-bottom: 0.75rem;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 1;
  background: #2a2a2e;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.speaker-card__img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(1) contrast(1.05) brightness(0.98);
}
.speaker-card__name { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.25rem; }
.speaker-card__company { font-size: 0.75rem; letter-spacing: 0.08em; opacity: 0.9; margin-bottom: 0.15rem; }
.speaker-card__role { font-size: 0.9rem; opacity: 0.8; }
.speaker-card--join-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.speaker-card__img-wrap--join {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 1.25rem;
  background: linear-gradient(145deg, #0f0f0f 0%, #1a1a1a 50%, #0a0a0a 100%);
}
.speaker-card__join-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
}
.speaker-card__join-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
  color: #fff;
  letter-spacing: -0.02em;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.speaker-card__img-wrap--join .speaker-card__join-content {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.5rem 0;
}
.speaker-card__join-desc {
  font-size: 1.2rem;
  line-height: 1.5;
  margin: 0.35rem 0 0;
  color: rgba(255, 255, 255, 0.9);
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.speaker-card__join-btn {
  margin-top: 0.75rem;
  padding: 0.75rem 1.5rem;
  background: #fff;
  color: #111;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.speaker-card__join-btn:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}
.speaker-card__join-btn:active { transform: scale(0.98); }
.speakers .link-arrow { color: var(--accent); }
.speakers__header {
  display: flex;
  align-items: baseline;
  gap: 0.5em;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.speakers__header .section__title { margin-bottom: 0; flex-shrink: 0; }
.speakers__header-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.5;
  margin: 0;
  flex: 1;
  min-width: 200px;
}
@media (max-width: 700px) {
  .speakers__header { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
}

/* ----- Agenda ----- */
.agenda__heading {
  font-size: 1.25rem;
  font-weight: 600;
  opacity: 0.9;
  margin-bottom: 1.5rem;
  color: #fff;
}
.agenda__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
@media (max-width: 900px) {
  .agenda__grid { grid-template-columns: 1fr; }
}
.agenda__day-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.agenda__day-subtitle {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 700;
  opacity: 0.95;
  margin-bottom: 1rem;
}
.agenda__block { margin-bottom: 1.5rem; }
.agenda__block-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  opacity: 0.9;
}
.agenda__block ul { list-style: none; }
.agenda__block li {
  padding: 0.25rem 0;
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.95rem;
  opacity: 0.9;
}
.agenda__block li::before {
  content: '~';
  position: absolute;
  left: 0;
  opacity: 0.7;
}

/* ----- Testimonials (center-magnified carousel) ----- */
.section.testimonials { padding-bottom: 2rem; }
.testimonials__slider { position: relative; width: 100%; max-width: 100%; margin: 0 auto; }
.testimonials__viewport {
  overflow: hidden;
  width: 100%;
  padding: 1rem 0 2rem;
  min-width: 0;
}
.testimonials__track {
  display: flex;
  gap: 1rem;
  transition: transform 0.45s ease-out;
  will-change: transform;
  padding: 0 0.5rem;
  min-width: 0;
}
.testimonials__slide {
  flex: 0 0 480px;
  width: 480px;
  min-height: 140px;
  padding: 1.5rem 1.75rem;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: transform 0.35s ease-out, opacity 0.35s ease-out, box-shadow 0.35s;
}
.testimonials__slide--side {
  transform: scale(0.88);
  opacity: 0.78;
}
.testimonials__slide--center {
  transform: scale(1.08);
  opacity: 1;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  z-index: 2;
}
.testimonials__quote {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 0.75rem;
  color: #111;
}
.testimonials__slide--center .testimonials__quote { font-size: 1.2rem; }
.testimonials__slide footer { font-size: 0.85rem; color: var(--gray-500); }
.testimonials__slide--center footer { font-size: 0.9rem; }
.testimonials__nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.5rem;
}
.testimonials__btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--gray-300);
  color: var(--gray-700);
  font-size: 1.25rem;
  transition: border-color 0.2s, color 0.2s;
}
.testimonials__btn:hover { border-color: var(--accent); color: var(--accent); }
@media (max-width: 700px) {
  .testimonials__slide { flex: 0 0 320px; width: 320px; min-height: 120px; }
  .testimonials__slide--center { transform: scale(1.02); }
  .testimonials__slide--side { transform: scale(0.92); opacity: 0.7; }
}

/* ----- Pricing ----- */
.section.pricing { padding-top: 2rem; }
.pricing__subtitle { margin-bottom: 2rem; }
.pricing__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
@media (max-width: 900px) {
  .pricing__cards { grid-template-columns: 1fr; }
}
.pricing__card {
  background: var(--black);
  color: #fff;
  padding: 2.5rem;
  border-radius: 20px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
}
.pricing__card-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.75rem; }
.pricing__price { margin-bottom: 1.25rem; }
.pricing__price-current { font-size: 2.5rem; font-weight: 700; }
.pricing__price-old { font-size: 1.1rem; opacity: 0.6; text-decoration: line-through; margin-left: 0.5rem; }
.pricing__card ul { list-style: none; margin-bottom: 1.5rem; flex-grow: 1; }
.pricing__card li {
  font-size: 1rem;
  padding: 0.35rem 0;
  padding-left: 1rem;
  position: relative;
  opacity: 0.9;
  line-height: 1.4;
}
.pricing__card li::before { content: '~'; position: absolute; left: 0; color: var(--accent); }
.pricing__card .btn--primary { width: 100%; text-align: center; }

/* ----- Partners (grid: equal squares, logo-only) ----- */
.section.sponsors { overflow-x: hidden; }
.sponsors__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(160px, 100%), 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  max-width: 100%;
  min-width: 0;
}
@media (min-width: 600px) {
  .sponsors__grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .sponsors__grid { grid-template-columns: repeat(4, 1fr); }
}
.sponsors__card {
  aspect-ratio: 1;
  min-width: 0;
  background: #f5f5f5;
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.sponsors__logo {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
}
.sponsors__logo:not(:has(img)) {
  background: rgba(0,0,0,0.04);
  border-radius: 8px;
}
.sponsors__logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%) contrast(0.9);
}
.sponsors__cta-card {
  aspect-ratio: 1;
  min-width: 0;
  background: var(--gray-900);
  color: #fff;
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.sponsors__cta-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
  text-align: center;
  line-height: 1.3;
}
.sponsors__cta-card .btn--outline {
  border-color: #fff;
  color: #fff;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}
.sponsors__cta-card .btn--outline:hover {
  background: rgba(255,255,255,0.15);
}

/* ----- FAQ ----- */
.faq__list { margin-bottom: 2rem; max-width: 640px; }
.faq__item {
  border-bottom: 1px solid var(--gray-300);
}
.faq__question {
  padding: 1rem 0;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq__question::-webkit-details-marker { display: none; }
.faq__question::after {
  content: '▼';
  font-size: 0.7rem;
  color: var(--accent);
  transition: transform 0.2s;
}
.faq__item[open] .faq__question::after { transform: rotate(180deg); }
.faq__answer {
  padding: 0 0 1rem 0;
  font-size: 0.95rem;
  color: var(--gray-600, var(--gray-500));
  line-height: 1.6;
}

/* ----- CTA block ----- */
.cta-block {
  position: relative;
  padding: var(--section-pad) 1.5rem;
  text-align: center;
  overflow: hidden;
}
.cta-block__gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #252535 100%);
  z-index: 0;
}
.cta-block__content { position: relative; z-index: 1; }
.cta-block__logo { font-size: 0.9rem; margin-bottom: 0.5rem; opacity: 0.9; }
.cta-block__title { font-size: clamp(2rem, 5vw, 3rem); font-weight: 700; margin-bottom: 0.5rem; }
.cta-block__subtitle { margin-bottom: 1.5rem; opacity: 0.9; }

/* ----- Footer ----- */
.footer {
  background: var(--black);
  color: #fff;
  padding: 2rem 1.5rem;
}
.footer__links {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}
.footer__links a { opacity: 0.9; }
.footer__links a:hover { opacity: 1; text-decoration: underline; }

/* ----- Signup modal ----- */
.signup-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.signup-modal.is-open {
  opacity: 1;
  visibility: visible;
}
.signup-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(8px);
  cursor: pointer;
}
.signup-modal__box {
  position: relative;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--gray-900);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
  padding: 2rem 1.75rem;
  color: #fff;
}
.signup-modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem;
  color: rgba(255, 255, 255, 0.6);
  border-radius: 10px;
  transition: color 0.2s, background 0.2s;
}
.signup-modal__close:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.signup-modal__progress {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.25rem;
}
.signup-modal__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.signup-form__step {
  animation: signupStepIn 0.3s ease;
}
@keyframes signupStepIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.signup-form__intro {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.25rem;
  font-size: 1rem;
}
.signup-form__hint {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1rem;
}
.signup-form__grid { display: grid; gap: 1rem; }
.signup-form__grid--2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 420px) {
  .signup-form__grid--2 { grid-template-columns: 1fr; }
}
.signup-form__label {
  display: block;
  margin-bottom: 1rem;
}
.signup-form__label-text {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.35rem;
}
.signup-form__input,
.signup-form__select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.signup-form__input::placeholder { color: rgba(255, 255, 255, 0.35); }
.signup-form__input:focus,
.signup-form__select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 192, 0, 0.15);
}
.signup-form__select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.signup-form__options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.signup-form__option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.signup-form__option:hover { background: rgba(255, 255, 255, 0.08); }
.signup-form__radio { accent-color: var(--accent); }
.signup-form__option:has(.signup-form__radio:checked) {
  border-color: var(--accent);
  background: rgba(255, 192, 0, 0.08);
}
.signup-form__checks {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.signup-form__check {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
}
.signup-form__checkbox { accent-color: var(--accent); flex-shrink: 0; }
.signup-form__check--other {
  flex-wrap: wrap;
  align-items: center;
}
.signup-form__input--inline {
  margin-left: 1.5rem;
  margin-top: 0.5rem;
  width: calc(100% - 1.5rem);
  max-width: 280px;
}
.signup-form__input--inline:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.signup-form__textarea {
  min-height: 100px;
  resize: vertical;
}
.signup-form__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.signup-form__btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, opacity 0.2s;
}
.signup-form__btn--back {
  background: transparent;
  color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.signup-form__btn--back:hover { background: rgba(255, 255, 255, 0.08); }
.signup-form__btn--next,
.signup-form__btn--submit {
  background: var(--accent);
  color: var(--black);
  border: none;
  margin-left: auto;
}
.signup-form__btn--next:hover,
.signup-form__btn--submit:hover {
  background: var(--accent-dark);
  color: var(--black);
}
.signup-form__btn--submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* ----- Form pages (contact-style layout) ----- */
.page--form {
  background: #f4f4f6;
  color: #0f1115;
}
.page--form .header {
  position: sticky;
  top: 0;
  background: #f4f4f6;
  border-bottom: 1px solid #e3e3e8;
}
.page--form .header.scrolled {
  background: rgba(244, 244, 246, 0.92);
  backdrop-filter: blur(8px);
}
.page--form .header__logo,
.page--form .header__menu-btn,
.page--form .header__nav a {
  color: #17181c;
}
.page--form .header__nav {
  background: #f4f4f6;
}
.page--form .header__nav-overlay {
  background: rgba(15, 17, 21, 0.18);
}
.page--form .header__nav-cta {
  background: #101217;
  color: #fff !important;
}

.page--form .form-page {
  max-width: 1280px;
  margin: 0 auto;
  min-height: calc(100vh - 84px);
  padding: clamp(2.25rem, 6vw, 4rem) 1.5rem 5rem;
  display: grid;
  grid-template-columns: minmax(260px, 440px) minmax(320px, 1fr);
  grid-template-areas:
    "title title"
    "intro box";
  gap: clamp(1.75rem, 4vw, 3.25rem) clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.page--form .form-page__title {
  grid-area: title;
  font-size: clamp(3.5rem, 12vw, 7.5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  font-weight: 700;
  color: #111216;
  margin: 0;
}
.page--form .form-page__intro {
  grid-area: intro;
  margin: 0;
  max-width: 19ch;
  font-size: clamp(1.9rem, 4.2vw, 2.8rem);
  line-height: 1.06;
  letter-spacing: -0.035em;
  color: #4e4f59;
  font-weight: 600;
  text-align: left;
}
.page--form .form-page__box {
  grid-area: box;
  width: 100%;
  margin: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  color: #151821;
}
.page--form .form-page__progress {
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #80818f;
  margin-bottom: 1.2rem;
}
.page--form .form-page__success {
  margin-top: 1rem;
  max-width: 40ch;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  line-height: 1.45;
  color: #1b1e28;
  font-weight: 600;
}

.page--form .signup-form__intro {
  color: #242633;
  font-size: 1.2rem;
  margin-bottom: 1.2rem;
}
.page--form .signup-form__hint {
  color: #777a89;
  font-size: 1rem;
}
.page--form .signup-form__label-text {
  color: #20222f;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.page--form .signup-form__input,
.page--form .signup-form__select,
.page--form .signup-form__textarea {
  background: transparent;
  color: #181a22;
  border: none;
  border-bottom: 1px solid #d5d8e0;
  border-radius: 0;
  font-size: 1.2rem;
  padding: 0.75rem 0.1rem 0.8rem;
  box-shadow: none;
}
.page--form .signup-form__input::placeholder,
.page--form .signup-form__textarea::placeholder {
  color: #9193a0;
}
.page--form .signup-form__select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6d7a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-position: right 0.1rem center;
  background-repeat: no-repeat;
  padding-right: 1.6rem;
}
.page--form .signup-form__input:focus,
.page--form .signup-form__select:focus,
.page--form .signup-form__textarea:focus {
  border-color: #111216;
  box-shadow: none;
}
.page--form .signup-form__options {
  gap: 0.5rem;
}
.page--form .signup-form__option {
  background: #fff;
  border: 1px solid #d7dbe4;
  color: #1f2230;
  border-radius: 12px;
  font-size: 1.15rem;
  padding: 0.9rem 1.35rem;
}
.page--form .signup-form__option:hover {
  background: #f9fafc;
}
.page--form .signup-form__option:has(.signup-form__radio:checked) {
  background: #f0f3fa;
  border-color: #97a0b7;
}
.page--form .signup-form__check {
  color: #252839;
  padding: 0.25rem 0;
  font-size: 1.15rem;
}
.page--form .signup-form__checkbox,
.page--form .signup-form__radio {
  accent-color: #121318;
}
.page--form .signup-form__input--inline {
  margin-left: 1.65rem;
  width: calc(100% - 1.65rem);
  max-width: 350px;
}
.page--form .signup-form__actions {
  border-top: none;
  padding-top: 1.45rem;
  margin-top: 1.45rem;
  justify-content: flex-end;
}
.page--form .signup-form__btn {
  border-radius: 999px;
  font-weight: 600;
  font-size: 1.2rem;
  padding: 0.95rem 1.9rem;
}
.page--form .signup-form__btn--back {
  border: 1px solid #c8ccd8;
  color: #2a2d38;
  background: #fff;
}
.page--form .signup-form__btn--back:hover {
  background: #f5f6fa;
}
.page--form .signup-form__btn--next,
.page--form .signup-form__btn--submit {
  min-width: 264px;
  background: #0f1116;
  color: #fff;
}
.page--form .signup-form__btn--next:hover,
.page--form .signup-form__btn--submit:hover {
  background: #1a1d25;
  color: #fff;
}

.page--form .footer {
  background: #f4f4f6;
  color: #2b2f3d;
  border-top: 1px solid #e3e3e8;
}
.page--form .footer__links a {
  opacity: 0.9;
}

@media (max-width: 900px) {
  .page--form .form-page {
    grid-template-columns: 1fr;
    grid-template-areas:
      "title"
      "intro"
      "box";
  }
  .page--form .form-page__intro {
    max-width: 30ch;
    font-size: clamp(1.45rem, 5vw, 2.2rem);
  }
}

@media (min-width: 980px) {
  .page--form .header {
    padding: 1rem 1.5rem;
  }
  .page--form .header__menu-btn {
    display: none;
  }
  .page--form .header__nav {
    position: static;
    transform: none;
    width: auto;
    background: transparent;
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
  }
  .page--form .header__nav a {
    font-size: 0.76rem;
    letter-spacing: 0.08em;
  }
  .page--form .header__nav-cta {
    margin-top: 0;
    border-radius: 999px;
    padding: 0.55rem 1rem;
  }
}