/* ========================================
   Font Faces
   ======================================== */

@font-face {
  font-family: 'Inter';
  src: url('/fonts/Inter-Latin.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122,
    U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Space Grotesk';
  src: url('/fonts/SpaceGrotesk-Latin.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122,
    U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ========================================
   Base Typography
   ======================================== */

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-gray-900);
  background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-navy);
}

p + p {
  margin-top: var(--space-md);
}

/* ========================================
   Layout Utilities
   ======================================== */

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

.section {
  padding: var(--space-4xl) 0;
}

.section--light {
  background-color: var(--color-off-white);
}

.section--dark {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3 {
  color: var(--color-white);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section--dark .section__subtitle {
  color: var(--color-gray-300);
}

/* ========================================
   Skip Link
   ======================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-azure);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-sm);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  letter-spacing: 0.02em;
  border: 2px solid transparent;
}

.btn--primary {
  background-color: var(--color-azure);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: #2474c4;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-navy);
  transform: translateY(-2px);
}

.section--light .btn--outline {
  color: var(--color-azure);
  border-color: var(--color-azure);
}

.section--light .btn--outline:hover {
  background-color: var(--color-azure);
  color: var(--color-white);
}

.btn--gold {
  background-color: var(--color-gold);
  color: var(--color-navy);
}

.btn--gold:hover {
  background-color: #d97706;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
}

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

.btn:focus-visible {
  outline: 3px solid var(--color-cyan);
  outline-offset: 2px;
}

/* ========================================
   Navigation
   ======================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header--scrolled {
  background-color: var(--color-navy);
  box-shadow: var(--shadow-md);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  z-index: 101;
}

.nav__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-white);
  letter-spacing: 0.1em;
}

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

.nav__link {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.03em;
  transition: color var(--transition-fast);
  padding: var(--space-xs) 0;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-cyan);
  transition: width var(--transition-base);
}

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

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--cta {
  background-color: var(--color-azure);
  color: var(--color-white);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-md);
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background-color: #2474c4;
}

.nav__link:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 4px;
  border-radius: 2px;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  z-index: 101;
  padding: 4px;
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   Hero
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0B1628 0%, #1B2A4A 40%, #0d2847 70%, #0B1628 100%);
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 800px 600px at 30% 40%, rgba(46, 134, 222, 0.15) 0%, transparent 70%),
    radial-gradient(ellipse 600px 400px at 70% 60%, rgba(0, 210, 255, 0.1) 0%, transparent 70%);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 22, 40, 0.3) 0%, rgba(11, 22, 40, 0.6) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-3xl) 0;
}

.hero__title {
  font-size: var(--text-5xl);
  color: var(--color-white);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.hero__title-accent {
  color: var(--color-cyan);
}

.hero__tagline {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-sm);
  font-weight: 300;
  letter-spacing: 0.02em;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-300);
  margin-bottom: var(--space-2xl);
}

.hero__cta-group {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   About Section
   ======================================== */

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.about__text {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-gray-600);
}

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

.stat-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card__number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-cyan);
  line-height: 1;
}

.stat-card__unit {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-azure);
}

.stat-card__label {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ========================================
   Gallery
   ======================================== */

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.gallery__item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.gallery__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.gallery__item:focus-visible {
  outline: 3px solid var(--color-cyan);
  outline-offset: 2px;
}

.gallery__placeholder {
  width: 100%;
  height: 100%;
}

.gallery__placeholder svg {
  width: 100%;
  height: 100%;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(transparent, rgba(11, 22, 40, 0.9));
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 500;
  text-align: left;
}

/* ========================================
   Lightbox
   ======================================== */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox[hidden] {
  display: none;
}

.lightbox__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(11, 22, 40, 0.95);
}

.lightbox__content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox__caption {
  color: var(--color-white);
  margin-top: var(--space-md);
  font-size: var(--text-lg);
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  color: var(--color-white);
  font-size: 2rem;
  padding: var(--space-sm) var(--space-md);
  transition: opacity var(--transition-fast);
  z-index: 1;
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  opacity: 0.7;
}

.lightbox__close:focus-visible,
.lightbox__prev:focus-visible,
.lightbox__next:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.lightbox__close {
  top: 0;
  right: 0;
  font-size: 2.5rem;
}

.lightbox__prev {
  left: -60px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__next {
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
}

/* ========================================
   Team
   ======================================== */

.team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.team-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.team-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-azure), var(--color-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
}

.team-card__avatar span {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
}

.team-card__name {
  font-size: var(--text-xl);
  margin-bottom: var(--space-xs);
}

.team-card__role {
  font-size: var(--text-sm);
  color: var(--color-azure);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.team-card__bio {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  line-height: 1.7;
}

/* ========================================
   Sponsors
   ======================================== */

.sponsors__logos {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.sponsors__coming-soon {
  font-size: var(--text-lg);
  color: var(--color-gray-300);
  font-style: italic;
  padding: var(--space-2xl) 0;
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
}

.sponsors__tiers {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.tier-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.tier-card:hover {
  transform: translateY(-4px);
}

.tier-card--platinum {
  border-color: var(--color-gold);
}

.tier-card--platinum:hover {
  border-color: var(--color-gold);
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.15);
}

.tier-card--gold {
  border-color: rgba(245, 158, 11, 0.5);
}

.tier-card--silver {
  border-color: var(--color-gray-300);
}

.tier-card__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tier-card--platinum .tier-card__title {
  color: var(--color-gold);
}

.tier-card--gold .tier-card__title {
  color: #d4a244;
}

.tier-card--silver .tier-card__title {
  color: var(--color-gray-300);
}

.tier-card__benefits {
  text-align: left;
  margin-bottom: var(--space-xl);
}

.tier-card__benefits li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-lg);
  position: relative;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
}

.tier-card__benefits li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--color-cyan);
}

.sponsors__cta {
  text-align: center;
  padding: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sponsors__cta p {
  font-size: var(--text-lg);
  color: var(--color-gray-300);
  margin-bottom: var(--space-xl);
}

/* ========================================
   Contact
   ======================================== */

.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
}

.contact__info h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

.contact__info > p {
  color: var(--color-gray-600);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.contact__details {
  font-style: normal;
  margin-bottom: var(--space-xl);
}

.contact__detail-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
}

.contact__detail-item a {
  color: var(--color-azure);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.contact__detail-item a:hover {
  color: #2474c4;
}

.contact__detail-item a:focus-visible {
  outline: 2px solid var(--color-azure);
  outline-offset: 2px;
  border-radius: 2px;
}

.contact__icon {
  flex-shrink: 0;
  color: var(--color-azure);
}

.contact__note {
  padding: var(--space-md);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-azure);
}

.contact__note p {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

/* Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

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

.form-label {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-gray-900);
}

.form-required {
  color: var(--color-error);
}

.form-input {
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  font-size: var(--text-base);
  color: var(--color-gray-900);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder {
  color: var(--color-gray-300);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-azure);
  box-shadow: 0 0 0 3px rgba(46, 134, 222, 0.15);
}

.form-input--error {
  border-color: var(--color-error);
}

.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  display: none;
}

.form-error--visible {
  display: block;
}

.form-status {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  text-align: center;
  display: none;
}

.form-status--success {
  display: block;
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-status--error {
  display: block;
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* ========================================
   Footer
   ======================================== */

.site-footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: var(--space-xl);
}

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

.footer__logo span {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
}

.footer__tagline {
  color: var(--color-gray-300);
  font-size: var(--text-sm);
  margin-top: var(--space-sm);
}

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

.footer__nav a {
  font-size: var(--text-sm);
  color: var(--color-gray-300);
  transition: color var(--transition-fast);
}

.footer__nav a:hover {
  color: var(--color-white);
}

.footer__nav a:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 4px;
  border-radius: 2px;
}

.footer__bottom {
  text-align: center;
}

.footer__bottom p {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

/* ========================================
   Scroll Reveal Animations
   ======================================== */

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}