:root { --white: #fff; --lime: #a7e51d; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-snap-type: y proximity; }
body { margin: 0; color: var(--white); background: #111421; font-family: "Inter", Arial, sans-serif; font-weight: 300; }
a { color: inherit; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.screen { position: relative; min-height: 100svh; display: grid; place-items: center; overflow: hidden; scroll-snap-align: start; background-position: center; background-size: cover; isolation: isolate; }
.screen::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.global, .contact { background-image: url("assets/global-background.png"); }
.global::before { background: rgba(13, 13, 38, .34); }
.project { background-image: url("assets/stadium-mobile.jpg"); }
.project::before { background: rgba(2, 7, 9, .56); }
.content { width: min(100% - 42px, 680px); margin: auto; text-align: center; }
.kicker { margin: 0; font-size: clamp(.93rem, 2.3vw, 1.18rem); font-weight: 500; letter-spacing: .48em; }

.global-content { padding: 70px 0 56px; }
.global h1, .contact h2 { margin: 44px 0 43px; font-family: "Barlow Condensed", Impact, sans-serif; font-size: clamp(4rem, 15vw, 6.2rem); font-weight: 500; line-height: .96; letter-spacing: -.025em; }
.intro { font-size: clamp(1rem, 3.65vw, 1.35rem); line-height: 1.85; text-shadow: 0 1px 3px #000; }
.intro p { margin: 0 0 4px; }
.intro p:last-child { margin-top: 23px; }
.round-button { width: 96px; height: 96px; display: inline-grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: #fff; text-decoration: none; box-shadow: 0 1px 3px rgba(0,0,0,.12); transition: transform .15s ease; }
.round-button:hover, .round-button:focus-visible { transform: scale(1.04); }
.round-button span { width: 35px; height: 35px; display: block; border-right: 5px solid #111; border-bottom: 5px solid #111; }
.round-button.down span { transform: translateY(-8px) rotate(45deg); }
.round-button.up span { transform: translateY(8px) rotate(225deg); }
.global .round-button { margin-top: 38px; }

.project-content { padding: 75px 0 58px; }
.gupsport-logo { display: block; width: min(100%, 480px); margin: 54px auto 0; text-decoration: none; }
.official-logo-crop { display: block; width: 100%; aspect-ratio: 966 / 525; overflow: hidden; }
.official-logo-crop img { display: block; width: 100%; height: auto; }
.project-copy, .project-note { font-size: clamp(1rem, 3.6vw, 1.3rem); line-height: 1.9; text-shadow: 0 1px 3px #000; }
.project-copy { max-width: 650px; margin: 51px auto 25px; }
.project-copy h2 { margin: 0 0 13px; font: 500 clamp(1.2rem, 4.2vw, 1.5rem)/1.35 "Inter", sans-serif; letter-spacing: 0; }
.project-copy p { margin: 0; }
.project-note { margin: 0; }
.round-nav { display: flex; justify-content: center; gap: 14px; margin-top: 38px; }

.contact { align-items: start; }
.contact::before { background: rgba(12, 11, 39, .26); }
.contact-content { padding: 24px 0 18px; }
.contact h2 { margin: 0 0 26px; font-size: clamp(4.4rem, 13vw, 6rem); }
form { display: grid; gap: 16px; }
input, textarea { width: 100%; color: white; border: 2px solid rgba(255,255,255,.92); outline: 0; background: rgba(26, 27, 50, .13); font: 300 clamp(1rem, 3.6vw, 1.25rem)/1.3 "Inter", sans-serif; transition: background .15s, border-color .15s; }
input { height: 70px; padding: 0 30px; border-radius: 38px; }
textarea { height: 165px; padding: 25px 30px; border-radius: 38px; resize: vertical; }
input::placeholder, textarea::placeholder { color: rgba(213, 213, 226, .52); opacity: 1; }
input:focus, textarea:focus { border-color: white; background: rgba(255,255,255,.08); }
form button { height: 64px; color: #15141b; border: 0; border-radius: 35px; background: #fff; font: 600 1.15rem/1 "Inter", sans-serif; cursor: pointer; }
address { margin: 25px auto 24px; font-size: clamp(.86rem, 2.8vw, 1rem); font-style: normal; line-height: 1.55; text-shadow: 0 1px 3px #000; }
address a { text-decoration: none; }
address p { margin: 5px 0; }
.contact .round-button { width: 72px; height: 72px; }
.contact .round-button span { width: 27px; height: 27px; border-width: 4px; }

@media (min-width: 800px) {
  .screen { min-height: 100svh; }
  .global, .contact { background-position: center 25%; }
  .project { background-image: url("assets/stadium-desktop.jpg"); background-position: center; }
  .project::before { background: rgba(2, 7, 9, .62); }
  .content { width: min(100% - 60px, 760px); }
  .global h1 { font-size: 6.5rem; }
  .intro { font-size: 1.25rem; }
  .project-content { max-width: 760px; padding-block: 82px; }
  .project-content .kicker { font-size: 1.15rem; }
  .gupsport-logo { width: 500px; margin-top: 48px; }
  .project-copy, .project-note { font-size: 1.18rem; }
  .project-copy { margin-top: 44px; }
  .contact-content { max-width: 620px; padding-block: 18px; }
  .contact h2 { margin-bottom: 22px; font-size: 5.2rem; }
  .contact input { height: 64px; }
  .contact textarea { height: 140px; }
  .contact form button { height: 60px; }
  .contact address { margin-block: 20px; }
}

@media (max-width: 480px) {
  .screen { min-height: 100svh; }
  .content { width: calc(100% - 38px); }
  .global-content { padding: 64px 0 46px; }
  .global h1 { margin: 39px 0 42px; font-size: clamp(3.75rem, 15.4vw, 4.75rem); }
  .intro { font-size: clamp(.91rem, 3.85vw, 1.12rem); line-height: 1.84; }
  .round-button { width: 84px; height: 84px; }
  .round-button span { width: 30px; height: 30px; border-width: 4px; }
  .project-content { padding-top: 65px; }
  .gupsport-logo { width: min(100%, 370px); margin-top: 49px; }
  .project-copy, .project-note { font-size: clamp(.92rem, 4vw, 1.08rem); }
  .project-copy { margin-top: 54px; }
  .contact-content { padding-top: 16px; }
  .contact h2 { margin-bottom: 24px; font-size: clamp(4.15rem, 16vw, 5rem); }
  form { gap: 14px; }
  input { height: 62px; padding-inline: 28px; }
  textarea { height: 140px; padding: 22px 28px; }
  form button { height: 60px; }
  address { margin-block: 23px; }
}

@media (max-width: 380px) {
  .wide-break { display: none; }
  .global h1 { font-size: 3.55rem; }
  .intro { font-size: .9rem; }
  .project-copy, .project-note { font-size: .9rem; }
  .round-button { width: 76px; height: 76px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .round-button { transition: none; } }