.start-screen{position:fixed;inset:0;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,#030710dd,#07111ad9);z-index:9}.start-screen.is-hidden{display:none}.start-card{width:min(460px,100%);padding:clamp(20px,5vw,36px);border:1px solid #5fe7ff55;background:linear-gradient(145deg,#0b1928f2,#050a12f5);border-radius:14px;text-align:center;box-shadow:0 0 70px #00bfe51c}.sigil{width:52px;height:52px;border:1px solid var(--cyan);transform:rotate(45deg);margin:0 auto 22px;display:grid;place-items:center;box-shadow:0 0 30px #3de4ff2c;color:var(--cyan);font-size:25px}.start-card h2{font-size:clamp(25px,6vw,38px);letter-spacing:.1em;margin:8px 0 4px}.subheading{font-size:10px;letter-spacing:.15em;color:var(--cyan);font-weight:700}.start-card p{font-size:13px;line-height:1.65;color:#9eb4c5;margin:14px auto 20px;max-width:330px}#start-button{width:100%;padding:14px;border:1px solid var(--cyan);border-radius:7px;background:linear-gradient(90deg,#0a5369,#0b263a);color:#eaffff;font-weight:800;letter-spacing:.15em;font-size:11px}.prototype-note{display:block;font-size:9px;letter-spacing:.12em;margin-top:14px;color:#617c90}