:root { --primary: #005b72; --accent: #5698ad; --ink: #173646; --muted: #5b6d76; --line: #d8e2e6; --surface: #fff; --background: #f2f6f7; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--ink); background: var(--background); font-family: Arial, Helvetica, sans-serif; }
.site_header { height: 96px; display: flex; align-items: center; justify-content: center; padding: 0 24px; background: var(--surface); border-bottom: 1px solid var(--line); }
.logo { display: block; width: 190px; height: auto; }
.page_shell { min-height: calc(100vh - 96px); display: grid; place-items: center; padding: 48px 20px; background: linear-gradient(135deg, rgba(0,91,114,.07), transparent 52%); }
.card { width: min(100%, 600px); padding: clamp(32px, 6vw, 64px); background: var(--surface); border: 1px solid var(--line); border-radius: 4px; box-shadow: 0 18px 55px rgba(23,54,70,.09); }
h1 { margin: 0; max-width: 12ch; color: var(--primary); font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.04; letter-spacing: -.035em; }
.intro { margin: 24px 0 32px; color: var(--muted); font-size: 1.06rem; line-height: 1.65; }
button, .link_button { border-radius: 4px; font: inherit; font-weight: 700; cursor: pointer; }
.primary_button { width: 100%; min-height: 54px; padding: 15px 22px; border: 2px solid var(--primary); color: #fff; background: var(--primary); }
.primary_button:hover { background: #00495c; border-color: #00495c; }
.primary_button:focus-visible, .secondary_button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.primary_button:disabled { cursor: wait; opacity: .7; }
.result { margin-top: 24px; padding: 24px; border-radius: 4px; background: #edf6f8; }
.result_label { margin: 0 0 8px; color: var(--muted); font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.generated_identifier { display: block; margin-bottom: 20px; color: var(--primary); font: 700 clamp(1.6rem, 7vw, 2.5rem)/1.2 Consolas, monospace; letter-spacing: .11em; overflow-wrap: anywhere; }
.secondary_button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 10px 17px; border: 2px solid var(--primary); border-radius: 4px; color: var(--primary); background: transparent; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.secondary_button + .secondary_button { margin-left: 12px; }
.privacy_note { margin: 20px 0 0; color: var(--muted); font-size: .83rem; line-height: 1.5; }
.error { margin: 20px 0 0; color: #a22121; }
.link_button { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
@media (max-width: 500px) { .site_header { height: 78px; } .logo { width: 155px; } .page_shell { min-height: calc(100vh - 78px); padding: 24px 14px; } .card { padding: 30px 24px; } .secondary_button { width: 100%; } .secondary_button + .secondary_button { margin: 12px 0 0; } }