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

 :root {
     --black: #0a0a0a;
     --white: #f8f7f4;
     --mid: #3a3a3a;
     --light: #333331;
     --border: #999994;
     --accent: #0a0a0a;
 }

 html {
     scroll-behavior: smooth;
 }

 body {
     background: var(--white);
     color: var(--black);
     font-family: 'Barlow', sans-serif;
     font-weight: 300;
     line-height: 1.7;
     overflow-x: hidden;
 }

 /* ── NAV ── */
 nav {
     position: fixed;
     top: 0;
     left: 0;
     right: 0;
     z-index: 100;
     display: flex;
     justify-content: space-between;
     align-items: center;
     padding: 1.2rem 3rem;
     border-bottom: 1px solid var(--border);
     background: rgba(248, 247, 244, 0.92);
     backdrop-filter: blur(8px);
 }

 .nav-logo {
     font-family: 'DM Mono', monospace;
     font-size: 0.75rem;
     letter-spacing: 0.2em;
     text-transform: uppercase;
     color: var(--light);
 }

 .nav-links {
     display: flex;
     gap: 2.5rem;
     list-style: none;
 }

 .nav-links a {
     font-family: 'DM Mono', monospace;
     font-size: 0.7rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     color: var(--light);
     text-decoration: none;
     transition: color 0.2s;
 }

 .nav-links a:hover {
     color: var(--black);
 }

 /* ── HERO ── */
 .hero {
     min-height: 100vh;
     display: grid;
     grid-template-columns: 1fr 1fr;
     border-bottom: 1px solid var(--border);
 }

 .hero-left {
     padding: 10rem 3rem 4rem 3rem;
     display: flex;
     flex-direction: column;
     justify-content: center;
     border-right: 1px solid var(--border);
 }

 .hero-tag {
     font-family: 'DM Mono', monospace;
     font-size: 0.7rem;
     letter-spacing: 0.25em;
     text-transform: uppercase;
     color: var(--light);
     margin-bottom: 2rem;
 }

 .hero-title {
     font-family: 'DM Serif Display', serif;
     font-size: clamp(3rem, 5vw, 5.5rem);
     line-height: 1.05;
     letter-spacing: -0.02em;
     margin-bottom: 2rem;
 }

 .hero-title em {
     font-style: italic;
     color: var(--light);
 }

 .hero-desc {
     font-size: 1rem;
     color: var(--light);
     max-width: 38ch;
     margin-bottom: 3rem;
     line-height: 1.8;
 }

 .btn-primary {
     display: inline-block;
     padding: 1rem 2.5rem;
     background: var(--white);
     color: var(--black);
     font-family: 'DM Mono', monospace;
     font-size: 0.75rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     text-decoration: none;
     transition: background 0.2s, color 0.2s;
     align-self: flex-start;
 }

 .btn-primary:hover {
     background: var(--light);
 }

 .hero-right {
     padding: 10rem 3rem 4rem 3rem;
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     position: relative;
     overflow: hidden;
 }

 .sigma-bg {
     position: absolute;
     font-family: 'DM Serif Display', serif;
     font-size: 40vw;
     color: rgba(255, 255, 255, 0.03);
     top: 50%;
     left: 50%;
     transform: translate(-50%, -50%);
     pointer-events: none;
     user-select: none;
     line-height: 1;
 }

 .hero-stats {
     display: grid;
     grid-template-columns: 1fr 1fr;
     gap: 1px;
     width: 100%;
     background: var(--border);
     border: 1px solid var(--border);
 }

 .stat-cell {
     background: var(--black);
     padding: 2rem;
     display: flex;
     flex-direction: column;
     gap: 0.5rem;
 }

 .stat-number {
     font-family: 'DM Serif Display', serif;
     font-size: 2.5rem;
     line-height: 1;
 }

 .stat-label {
     font-family: 'DM Mono', monospace;
     font-size: 0.65rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     color: var(--light);
 }

 /* ── SECTIONS ── */
 section {
     border-bottom: 1px solid var(--border);
 }

 .section-header {
     display: flex;
     align-items: baseline;
     gap: 1.5rem;
     padding: 3rem 3rem 0 3rem;
     margin-bottom: 3rem;
 }

 .section-num {
     font-family: 'DM Mono', monospace;
     font-size: 0.65rem;
     color: var(--light);
     letter-spacing: 0.1em;
 }

 .section-title {
     font-family: 'DM Serif Display', serif;
     font-size: clamp(2rem, 3vw, 3.5rem);
     letter-spacing: -0.02em;
 }

 /* ── REGISTRATION ── */
 #register {
     display: grid;
     grid-template-columns: 1fr 1fr;
 }

 .reg-info {
     padding: 3rem;
     border-right: 1px solid var(--border);
 }

 .reg-info h2 {
     font-family: 'DM Serif Display', serif;
     font-size: clamp(2rem, 3vw, 3.5rem);
     margin-bottom: 0.5rem;
     letter-spacing: -0.02em;
 }

 .reg-sub {
     font-family: 'DM Mono', monospace;
     font-size: 0.65rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     color: var(--light);
     margin-bottom: 2.5rem;
 }

 .date-row {
     display: flex;
     justify-content: space-between;
     align-items: baseline;
     padding: 1.2rem 0;
     border-top: 1px solid var(--border);
 }

 .date-row:last-of-type {
     border-bottom: 1px solid var(--border);
 }

 .date-label {
     font-family: 'DM Mono', monospace;
     font-size: 0.7rem;
     letter-spacing: 0.1em;
     text-transform: uppercase;
     color: var(--light);
 }

 .date-value {
     font-family: 'DM Serif Display', serif;
     font-size: 1.3rem;
 }

 .reg-actions {
     padding: 3rem;
     display: flex;
     flex-direction: column;
     gap: 1rem;
     justify-content: center;
 }

 .reg-actions h3 {
     font-family: 'DM Mono', monospace;
     font-size: 0.75rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     color: var(--black);
     font-weight: 500;
     margin-bottom: 0.5rem;
 }

 .btn-outline {
     display: inline-block;
     padding: 1.1rem 2rem;
     border: 2px solid var(--black);
     color: var(--black);
     background: transparent;
     font-family: 'DM Mono', monospace;
     font-size: 0.75rem;
     font-weight: 500;
     letter-spacing: 0.12em;
     text-transform: uppercase;
     text-decoration: none;
     transition: background 0.2s, color 0.2s;
     text-align: center;
 }

 .btn-outline:hover {
     background: var(--black);
     color: var(--white);
 }

 .purchase-note {
     font-size: 0.85rem;
     color: var(--black);
     margin-top: 1rem;
 }

 /* ── FORMAT ── */
 #format {
     padding: 4rem 3rem;
 }

 .format-grid {
     display: grid;
     grid-template-columns: repeat(3, 1fr);
     gap: 1px;
     background: var(--border);
     border: 1px solid var(--border);
     margin-top: 2rem;
 }

 .format-cell {
     background: var(--white);
     padding: 2.5rem 2rem;
 }

 .format-icon {
     font-family: 'DM Serif Display', serif;
     font-size: 2rem;
     margin-bottom: 1rem;
     color: var(--black);
 }

 .format-cell h3 {
     font-family: 'DM Serif Display', serif;
     font-size: 1.4rem;
     margin-bottom: 0.75rem;
     letter-spacing: -0.01em;
     color: var(--black);
 }

 .format-cell p {
     font-size: 0.9rem;
     color: var(--mid);
     line-height: 1.7;
 }

 /* ── PRIZES ── */
 #prizes {
     padding: 4rem 3rem;
     display: grid;
     grid-template-columns: 1fr 2fr;
     gap: 4rem;
     align-items: center;
 }

 .prize-main {
     border: 1px solid var(--border);
     padding: 3rem 2rem;
     text-align: center;
 }

 .prize-amount {
     font-family: 'DM Serif Display', serif;
     font-size: clamp(3rem, 5vw, 5rem);
     letter-spacing: -0.03em;
     margin-bottom: 0.5rem;
 }

 .prize-desc {
     font-family: 'DM Mono', monospace;
     font-size: 0.7rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     color: var(--light);
 }

 .prize-text h2 {
     font-family: 'DM Serif Display', serif;
     font-size: clamp(2rem, 3vw, 3.5rem);
     margin-bottom: 1rem;
     letter-spacing: -0.02em;
 }

 .prize-text p {
     color: var(--light);
     font-size: 1rem;
     line-height: 1.8;
     max-width: 50ch;
 }

 /* ── TEAM ── */
 #team {
     padding: 4rem 3rem;
 }

 .team-grid {
     display: grid;
     grid-template-columns: repeat(3, 1fr);
     gap: 1px;
     background: var(--border);
     border: 1px solid var(--border);
     margin-top: 2rem;
 }

 .team-card {
     background: var(--white);
     padding: 2.5rem 2rem;
     transition: background 0.2s;
 }

 .team-card:hover {
     background: #eeecea;
 }

 .team-initials {
     width: 3rem;
     height: 3rem;
     border: 2px solid var(--black);
     background: var(--black);
     display: flex;
     align-items: center;
     justify-content: center;
     font-family: 'DM Mono', monospace;
     font-size: 0.75rem;
     letter-spacing: 0.05em;
     color: var(--white);
     margin-bottom: 1.5rem;
 }

 .team-name {
     font-family: 'DM Serif Display', serif;
     font-size: 1.5rem;
     margin-bottom: 0.25rem;
     letter-spacing: -0.01em;
     color: var(--black);
 }

 .team-role {
     font-family: 'DM Mono', monospace;
     font-size: 0.7rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     color: var(--black);
     font-weight: 500;
     margin-bottom: 1.5rem;
     padding-bottom: 1.5rem;
     border-bottom: 2px solid var(--black);
 }

 .team-quals {
     list-style: none;
     display: flex;
     flex-direction: column;
     gap: 0.6rem;
 }

 .team-quals li {
     font-size: 0.9rem;
     color: var(--black);
     padding-left: 1.2rem;
     position: relative;
     line-height: 1.5;
 }

 .team-quals li::before {
     content: '—';
     position: absolute;
     left: 0;
     color: var(--black);
 }

 /* ── CONTACT ── */
 #contact {
     padding: 4rem 3rem;
     display: grid;
     grid-template-columns: 1fr 1fr;
     gap: 4rem;
 }

 #contact h2 {
     font-family: 'DM Serif Display', serif;
     font-size: clamp(2rem, 3vw, 3.5rem);
     margin-bottom: 2rem;
     letter-spacing: -0.02em;
 }

 .contact-item {
     display: flex;
     flex-direction: column;
     gap: 0.25rem;
     padding: 1.2rem 0;
     border-top: 1px solid var(--border);
 }

 .contact-item:last-child {
     border-bottom: 1px solid var(--border);
 }

 .contact-label {
     font-family: 'DM Mono', monospace;
     font-size: 0.65rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     color: var(--light);
 }

 .contact-value {
     font-size: 1rem;
     color: var(--white);
 }

 .contact-eligibility h3 {
     font-family: 'DM Serif Display', serif;
     font-size: 1.8rem;
     margin-bottom: 1.5rem;
     letter-spacing: -0.01em;
 }

 .eligibility-list {
     list-style: none;
     display: flex;
     flex-direction: column;
     gap: 0.75rem;
 }

 .eligibility-list li {
     font-size: 0.95rem;
     color: var(--light);
     padding-left: 1.5rem;
     position: relative;
 }

 .eligibility-list li::before {
     content: '→';
     position: absolute;
     left: 0;
     color: var(--light);
     font-size: 0.85rem;
 }

 /* ── FOOTER ── */
 footer {
     padding: 2rem 3rem;
     display: flex;
     justify-content: space-between;
     align-items: center;
     border-top: 1px solid var(--border);
 }

 .footer-logo {
     font-family: 'DM Serif Display', serif;
     font-size: 1.1rem;
     letter-spacing: -0.01em;
 }

 .footer-credit {
     font-family: 'DM Mono', monospace;
     font-size: 0.65rem;
     letter-spacing: 0.1em;
     color: var(--light);
     text-transform: uppercase;
 }

 /* ── ANIMATIONS ── */
 @keyframes fadeUp {
     from {
         opacity: 0;
         transform: translateY(20px);
     }

     to {
         opacity: 1;
         transform: translateY(0);
     }
 }

 .hero-left>* {
     animation: fadeUp 0.7s ease both;
 }

 .hero-tag {
     animation-delay: 0.1s;
 }

 .hero-title {
     animation-delay: 0.2s;
 }

 .hero-desc {
     animation-delay: 0.3s;
 }

 .btn-primary {
     animation-delay: 0.4s;
 }

 /* ── RESPONSIVE ── */
 @media (max-width: 900px) {
     nav {
         padding: 1rem 1.5rem;
     }

     .nav-links {
         gap: 1.5rem;
     }

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

     .hero-right {
         display: none;
     }

     .hero-left {
         padding: 8rem 1.5rem 4rem;
     }

     #about {
         grid-template-columns: 1fr;
     }

     #about>div {
         border-right: none !important;
         border-bottom: 1px solid var(--border);
         padding: 2.5rem 1.5rem !important;
     }

     #register {
         grid-template-columns: 1fr;
     }

     .reg-info {
         border-right: none;
         border-bottom: 1px solid var(--border);
     }

     .reg-info,
     .reg-actions {
         padding: 2rem 1.5rem;
     }

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

     #format,
     #team,
     #contact {
         padding: 3rem 1.5rem;
     }

     #prizes {
         grid-template-columns: 1fr;
         padding: 3rem 1.5rem;
         gap: 2rem;
     }

     #contact {
         grid-template-columns: 1fr;
         gap: 2rem;
     }

     .section-header {
         padding: 2.5rem 1.5rem 0;
     }

     footer {
         padding: 1.5rem;
         flex-direction: column;
         gap: 0.75rem;
         text-align: center;
     }
 }