/* ============================================================
   /url-shortener - page design. Prefix .uss-.
   The site template gives bare <section> 60px padding and clips
   overflow, so this page uses divs.
   ============================================================ */

.uss {
    --uss-ink: #121a33;
    --uss-ink-2: #4a5470;
    --uss-ink-3: #7c86a2;
    --uss-line: #e3e7f1;
    --uss-accent: #2563eb;
    --uss-accent-2: #06b6d4;
    --uss-hot: #f43f5e;
    --uss-bg: #f6f8fc;
    color: var(--uss-ink);
    background: var(--uss-bg);
    overflow-x: clip;
}
.uss *, .uss *::before, .uss *::after { box-sizing: border-box; }
.uss-sr { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ---------------- hero ---------------- */
.uss-hero {
    position: relative; padding: 58px 20px 76px; color: #fff; overflow: hidden; isolation: isolate;
    background: radial-gradient(900px 480px at 8% -10%, #1d4ed8 0%, transparent 60%),
                radial-gradient(800px 420px at 100% 110%, #0e7490 0%, transparent 60%),
                linear-gradient(135deg, #07122e 0%, #0b1d4a 55%, #062a3a 100%);
}
.uss-hero-art { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.uss-blob { position: absolute; border-radius: 50%; filter: blur(42px); opacity: .5; animation: uss-drift 16s ease-in-out infinite; }
.uss-blob.b1 { width: 320px; height: 320px; left: -70px; top: 30px; background: #2563eb; }
.uss-blob.b2 { width: 280px; height: 280px; right: -50px; top: -70px; background: #06b6d4; animation-delay: -5s; }
.uss-blob.b3 { width: 230px; height: 230px; right: 24%; bottom: -120px; background: #f43f5e; opacity: .3; animation-delay: -9s; }
/* two chain links: a long one that shrinks into a short one */
.uss-chain { position: absolute; height: 26px; border: 4px solid rgba(255,255,255,.22); border-radius: 999px; animation: uss-squeeze 6s ease-in-out infinite; }
.uss-chain.c1 { width: 130px; left: 6%; top: 30%; }
.uss-chain.c2 { width: 130px; right: 7%; bottom: 24%; animation-delay: -3s; }

.uss-hero-in { position: relative; max-width: 900px; margin: 0 auto; text-align: center; }
.uss-eyebrow {
    display: inline-flex; align-items: center; gap: 8px; margin: 0 0 16px; padding: 6px 14px; border-radius: 999px;
    background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); font-size: 13.5px; font-weight: 600; color: #d6e4ff;
}
.uss-dot { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; animation: uss-ping 2s infinite; }
.uss-title { margin: 0 0 14px; font-size: clamp(30px, 4.6vw, 52px); line-height: 1.08; font-weight: 800; letter-spacing: -.03em; color: #fff; }
.uss-lede { max-width: 640px; margin: 0 auto 28px; font-size: clamp(15.5px, 1.6vw, 18px); line-height: 1.6; color: #c3d3f5; }

/* ---------------- link box ---------------- */
.uss-box {
    position: relative; margin: 0 auto; max-width: 820px; padding: 10px; border-radius: 22px; text-align: left;
    background: rgba(255,255,255,.98); box-shadow: 0 24px 60px rgba(3, 8, 30, .45), 0 0 0 1px rgba(255,255,255,.4);
}
.uss-box::before {
    content: ""; position: absolute; inset: -2px; z-index: -1; border-radius: 24px;
    background: linear-gradient(120deg, #2563eb, #06b6d4, #f43f5e, #2563eb); background-size: 300% 100%;
    opacity: 0; transition: opacity .25s ease; animation: uss-flow 6s linear infinite;
}
.uss-box:focus-within::before, .uss-box.is-busy::before { opacity: 1; }
.uss-box-row { display: flex; align-items: center; gap: 8px; }
.uss-box-icon { flex: none; display: grid; place-items: center; width: 42px; height: 42px; margin-left: 4px; border-radius: 12px; background: #eef4ff; color: var(--uss-accent); }
.uss-box-icon svg { width: 20px; height: 20px; }
.uss-input { flex: 1; min-width: 0; height: 52px; padding: 0 6px; border: 0; outline: none; background: transparent; font-size: 16.5px; color: var(--uss-ink); }
.uss-input::placeholder { color: #9aa2bd; }
.uss-icon-btn { flex: none; display: grid; place-items: center; width: 34px; height: 34px; border: 0; border-radius: 10px; background: transparent; color: var(--uss-ink-3); cursor: pointer; }
.uss-icon-btn:hover { background: #f1f3f9; color: var(--uss-ink); }
.uss-icon-btn svg { width: 16px; height: 16px; }
.uss-paste {
    flex: none; display: inline-flex; align-items: center; gap: 6px; height: 46px; padding: 0 14px;
    border: 1px solid var(--uss-line); border-radius: 13px; background: #fff; color: var(--uss-ink-2); font-weight: 700; font-size: 14.5px; cursor: pointer;
    transition: border-color .15s ease, color .15s ease, background-color .15s ease;
}
.uss-paste svg { width: 17px; height: 17px; }
.uss-paste:hover, .uss-paste:focus-visible { border-color: var(--uss-accent); color: var(--uss-accent); }
.uss-paste.is-done { background: #ecfdf3; border-color: #22a55b; color: #15803d; }
.uss-go {
    flex: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 52px; padding: 0 24px; border: 0; border-radius: 15px; cursor: pointer;
    color: #fff; font-weight: 800; font-size: 16px;
    background: linear-gradient(120deg, #2563eb 0%, #0891b2 60%, #06b6d4 100%);
    box-shadow: 0 10px 24px rgba(37, 99, 235, .35);
    transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.uss-go:hover { transform: translateY(-1px); box-shadow: 0 14px 30px rgba(37, 99, 235, .45); }
.uss-go:focus-visible { outline: 3px solid #ffd166; outline-offset: 3px; }
.uss-go[disabled] { cursor: progress; filter: saturate(.8); }
.uss-go-arrow { width: 18px; height: 18px; transition: transform .2s ease; }
.uss-go:hover .uss-go-arrow { transform: translateX(3px); }
.uss-go[aria-busy="true"] .uss-go-arrow { display: none; }
.uss-spinner { width: 18px; height: 18px; border: 2.5px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: uss-spin .8s linear infinite; }
.uss-spinner[hidden] { display: none; }

.uss-box-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 14px; padding: 8px 10px 2px 56px; }
.uss-hint { margin: 0; min-height: 20px; font-size: 13.5px; color: var(--uss-ink-3); }
.uss-hint.is-ok { color: #15803d; font-weight: 600; }
.uss-hint.is-warn { color: #b45309; font-weight: 600; }
.uss-utm-toggle {
    display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border: 1px solid var(--uss-line); border-radius: 10px;
    background: #fff; color: var(--uss-ink-2); font-size: 13px; font-weight: 700; cursor: pointer;
}
.uss-utm-toggle svg { width: 15px; height: 15px; }
.uss-utm-toggle[aria-expanded="true"], .uss-utm-toggle:hover { border-color: var(--uss-accent); color: var(--uss-accent); }
.uss-utm-toggle.has-tags::after { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--uss-hot); }

.uss-utm { margin: 10px 4px 4px; padding: 14px; border-radius: 14px; background: #f6f8fc; border: 1px dashed #cdd6ea; animation: uss-rise .25s ease both; }
.uss-utm-note { margin: 0 0 10px; font-size: 13px; color: var(--uss-ink-3); }
.uss-utm-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.uss-utm-grid label { display: flex; flex-direction: column; gap: 4px; margin: 0; font-size: 12.5px; font-weight: 700; color: var(--uss-ink-2); }
.uss-utm-grid input { height: 38px; padding: 0 10px; border: 1px solid var(--uss-line); border-radius: 10px; background: #fff; font-size: 14px; color: var(--uss-ink); outline: none; }
.uss-utm-grid input:focus { border-color: var(--uss-accent); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.uss-utm-preview { margin: 10px 0 0; padding: 8px 10px; border-radius: 10px; background: #fff; border: 1px solid var(--uss-line); font: 12.5px/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--uss-ink-2); word-break: break-all; }

.uss-msg { margin: 10px 6px 4px; padding: 10px 14px; border-radius: 12px; background: #fff1f2; color: #b91c1c; font-weight: 600; font-size: 14.5px; }
.uss-msg[hidden] { display: none; }

.uss-trust { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 22px; margin: 24px 0 0; padding: 0; list-style: none; font-size: 14px; color: #c3d3f5; }
.uss-trust li { display: inline-flex; align-items: center; gap: 7px; }

/* ---------------- shell ---------------- */
.uss-shell { max-width: 1180px; margin: 0 auto; padding: 0 20px 20px; }

/* ---------------- result ---------------- */
.uss-result {
    position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 26px; align-items: center;
    margin: -38px 0 0; padding: 26px; border-radius: 26px; background: #fff;
    box-shadow: 0 24px 60px rgba(18, 26, 51, .12); border: 1px solid var(--uss-line);
    animation: uss-rise .45s ease both;
}
.uss-result[hidden] { display: none; }
.uss-result.is-new .uss-short { animation: uss-pop .5s cubic-bezier(.2, .9, .3, 1.3) both; }
.uss-result-label { display: flex; align-items: center; gap: 9px; margin: 0 0 12px; font-weight: 800; color: #15803d; }
.uss-check { position: relative; width: 24px; height: 24px; border-radius: 50%; background: #22a55b; }
.uss-check::after { content: ""; position: absolute; left: 8px; top: 5px; width: 6px; height: 11px; border: solid #fff; border-width: 0 2.5px 2.5px 0; transform: rotate(45deg); }
.uss-short {
    display: flex; align-items: center; gap: 10px; padding: 10px 10px 10px 18px; border-radius: 16px;
    background: linear-gradient(120deg, #eef4ff, #ecfeff); border: 1px solid #c7dbff;
}
.uss-short a { flex: 1; min-width: 0; font-size: clamp(18px, 2.4vw, 26px); font-weight: 800; letter-spacing: -.01em; color: #1d4ed8 !important; text-decoration: none !important; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uss-short a:hover { text-decoration: underline !important; }
.uss-copy {
    flex: none; display: inline-flex; align-items: center; gap: 7px; height: 46px; padding: 0 18px; border: 0; border-radius: 12px; cursor: pointer;
    background: var(--uss-accent); color: #fff; font-weight: 800; font-size: 15px; box-shadow: 0 8px 18px rgba(37,99,235,.3);
    transition: background-color .15s ease, transform .15s ease;
}
.uss-copy svg { width: 17px; height: 17px; }
.uss-copy:hover { transform: translateY(-1px); }
.uss-copy.is-done { background: #16a34a; box-shadow: 0 8px 18px rgba(22,163,74,.3); }
.uss-long { margin: 10px 2px 0; font-size: 13.5px; color: var(--uss-ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uss-stats { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.uss-stat { display: inline-flex; align-items: baseline; gap: 6px; padding: 5px 11px; border-radius: 999px; background: #f1f3f9; font-size: 13px; }
.uss-stat b { color: var(--uss-ink); }
.uss-stat span { color: var(--uss-ink-3); }
.uss-stat.is-hot { background: #fff1f2; }
.uss-stat.is-hot b { color: #e11d48; }
.uss-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.uss-chip {
    display: inline-flex; align-items: center; gap: 7px; padding: 8px 13px; border: 1px solid var(--uss-line); border-radius: 11px;
    background: #fff; color: var(--uss-ink-2) !important; font-size: 14px; font-weight: 600; text-decoration: none !important; cursor: pointer;
    transition: border-color .15s ease, color .15s ease;
}
.uss-chip svg { width: 16px; height: 16px; }
.uss-chip:hover, .uss-chip:focus-visible { border-color: var(--uss-accent); color: var(--uss-accent) !important; }
.uss-chip[hidden] { display: none; }

.uss-qr { text-align: center; padding: 16px; border-radius: 20px; background: #f6f8fc; border: 1px solid var(--uss-line); }
.uss-qr-box { width: 190px; height: 190px; margin: 0 auto 12px; padding: 10px; border-radius: 14px; background: #fff; box-shadow: 0 8px 20px rgba(18,26,51,.08); }
.uss-qr-box canvas, .uss-qr-box svg { display: block; width: 100% !important; height: 100% !important; }
.uss-qr-actions { display: flex; justify-content: center; gap: 6px; }
.uss-qr-actions .uss-chip { padding: 6px 11px; font-size: 13px; }
.uss-qr-note { margin: 10px 0 0; font-size: 12.5px; color: var(--uss-ink-3); }
.uss-qr-note a { color: var(--uss-accent); font-weight: 700; }

/* ---------------- ads ---------------- */
.uss-ad { margin: 34px auto 10px; max-width: 980px; text-align: center; }
.uss-ad-label { display: block; margin-bottom: 6px; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: #a3aac2; }
.uss-ad:not(:has(.a2z-ad)) { display: none; }

/* ---------------- blocks ---------------- */
.uss-block { margin: 54px 0 0; }
.uss-block-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.uss-h2 { margin: 0 0 8px; font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; letter-spacing: -.02em; color: var(--uss-ink); }
.uss-muted { margin: 0; color: var(--uss-ink-3); font-size: 14px; }

.uss-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 18px 0 0; padding: 0; list-style: none; }
.uss-step { position: relative; padding: 22px; border-radius: 20px; background: #fff; border: 1px solid var(--uss-line); }
.uss-step h3 { margin: 12px 0 6px; font-size: 17px; font-weight: 800; }
.uss-step p { margin: 0; color: var(--uss-ink-2); font-size: 14.5px; line-height: 1.55; }
.uss-step-n { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; color: #fff; font-weight: 800; background: linear-gradient(135deg, #2563eb, #06b6d4); box-shadow: 0 8px 18px rgba(37,99,235,.3); }

.uss-features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 18px 0 0; }
.uss-feature { padding: 20px; border-radius: 18px; background: #fff; border: 1px solid var(--uss-line); transition: transform .18s ease, box-shadow .18s ease; }
.uss-feature:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(18,26,51,.08); }
.uss-feature h3 { margin: 12px 0 6px; font-size: 16px; font-weight: 800; }
.uss-feature p { margin: 0; color: var(--uss-ink-2); font-size: 14px; line-height: 1.55; }
.uss-feature-icon { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 13px; font-size: 21px; }
.uss .fi-1 { background: #eef4ff; } .uss .fi-2 { background: #ecfeff; } .uss .fi-3 { background: #fff1f5; }
.uss .fi-4 { background: #ecfdf3; } .uss .fi-5 { background: #fff7e6; } .uss .fi-6 { background: #f1f5f9; }

.uss-tips { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 18px 0 0; padding: 0; list-style: none; }
.uss-tip { display: flex; gap: 12px; align-items: flex-start; padding: 18px; border-radius: 18px; background: #fff; border: 1px solid var(--uss-line); font-size: 14.5px; line-height: 1.55; color: var(--uss-ink-2); }
.uss-tip-n { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px; background: var(--uss-accent); color: #fff; font-weight: 800; font-size: 14px; }

/* ---------------- history ---------------- */
.uss-history-tools { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.uss-search { height: 38px; width: 220px; padding: 0 12px; border: 1px solid var(--uss-line); border-radius: 10px; background: #fff; font-size: 14px; outline: none; }
.uss-search:focus { border-color: var(--uss-accent); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.uss-link-btn { border: 0; background: none; color: var(--uss-accent); font-weight: 700; cursor: pointer; padding: 4px 0; font-size: 14px; }
.uss-history-list { display: grid; gap: 10px; margin: 16px 0 0; padding: 0; list-style: none; }
.uss-history-item {
    display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 16px;
    background: #fff; border: 1px solid var(--uss-line); animation: uss-rise .35s ease both; animation-delay: calc(var(--i, 0) * 35ms);
}
.uss-history-fav { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: #eef4ff; color: var(--uss-accent); font-weight: 800; font-size: 16px; text-transform: uppercase; }
.uss-history-body { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.uss-history-short { font-weight: 800; color: #1d4ed8 !important; text-decoration: none !important; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uss-history-long { font-size: 13px; color: var(--uss-ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uss-history-meta { font-size: 12px; color: #a3aac2; }
.uss-history-actions { display: flex; gap: 6px; }
.uss-mini { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--uss-line); border-radius: 10px; background: #fff; color: var(--uss-ink-2); cursor: pointer; transition: border-color .15s ease, color .15s ease; }
.uss-mini svg { width: 16px; height: 16px; }
.uss-mini:hover, .uss-mini:focus-visible { border-color: var(--uss-accent); color: var(--uss-accent); }
.uss-mini.is-danger:hover { border-color: #e11d48; color: #e11d48; }
.uss-mini.is-done { border-color: #16a34a; color: #16a34a; }
.uss-history-empty { margin-top: 12px; }

/* ---------------- toast ---------------- */
.uss-toast {
    position: fixed; left: 50%; bottom: 26px; z-index: 1900; padding: 11px 18px; border-radius: 12px;
    background: #121a33; color: #fff; font-weight: 600; font-size: 14.5px; box-shadow: 0 14px 30px rgba(0,0,0,.25);
    transform: translate(-50%, 20px); opacity: 0; transition: transform .25s ease, opacity .25s ease;
}
.uss-toast.is-on { transform: translate(-50%, 0); opacity: 1; }

/* ---------------- reveal ---------------- */
.uss-reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; transition-delay: calc(var(--i, 0) * 70ms); }
.uss-reveal.is-in { opacity: 1; transform: none; }

/* ---------------- keyframes ---------------- */
@keyframes uss-spin { to { transform: rotate(360deg); } }
@keyframes uss-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes uss-pop { 0% { transform: scale(.94); } 60% { transform: scale(1.02); } 100% { transform: scale(1); } }
@keyframes uss-drift { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(30px, -20px) scale(1.08); } }
@keyframes uss-squeeze { 0%, 100% { width: 130px; } 50% { width: 54px; } }
@keyframes uss-flow { to { background-position: 300% 0; } }
@keyframes uss-ping { 0% { box-shadow: 0 0 0 0 rgba(74,222,128,.6); } 80%, 100% { box-shadow: 0 0 0 10px rgba(74,222,128,0); } }

/* ---------------- responsive ---------------- */
.uss-result-main, .uss-qr { min-width: 0; }

@media (max-width: 900px) {
    /* minmax(0, ...) so a long URL cannot widen the card past the screen */
    .uss-result { grid-template-columns: minmax(0, 1fr); }
    .uss-steps, .uss-features { grid-template-columns: 1fr 1fr; }
    .uss-tips { grid-template-columns: 1fr; }
    .uss-utm-grid { grid-template-columns: 1fr 1fr; }
    .uss-chain { display: none; }
}
@media (max-width: 640px) {
    .uss-hero { padding: 34px 16px 58px; }
    .uss-box { padding: 8px; border-radius: 18px; }
    .uss-box-row { flex-wrap: wrap; }
    .uss-box-icon { display: none; }
    .uss-input { flex: 1 1 calc(100% - 110px); height: 48px; padding: 0 8px; font-size: 16px; }
    .uss-paste { height: 44px; }
    .uss-go { flex: 1 1 100%; height: 50px; }
    .uss-box-foot { padding: 8px 6px 2px; }
    .uss-shell { padding: 0 14px 14px; }
    .uss-result { padding: 16px; border-radius: 20px; margin-top: -32px; }
    .uss-short { flex-wrap: wrap; padding: 12px; }
    .uss-short a { flex: 1 1 100%; }
    .uss-copy { flex: 1 1 100%; justify-content: center; }
    .uss-steps, .uss-features { grid-template-columns: 1fr; }
    .uss-search { width: 100%; }
    .uss-history-tools { width: 100%; }
    .uss-history-item { grid-template-columns: minmax(0, 1fr) auto; }
    .uss-history-fav { display: none; }
}
@media (prefers-reduced-motion: reduce) {
    .uss-blob, .uss-chain, .uss-dot, .uss-box::before, .uss-result, .uss-history-item, .uss-utm, .uss-result.is-new .uss-short { animation: none !important; }
    .uss-reveal { opacity: 1; transform: none; transition: none; }
    .uss-go, .uss-feature, .uss-copy { transition: none; }
}