/* ===== myoldnumber.com — 2026 node aesthetic ===== */
:root {
  --bg: #f8fafc; --bg2: #eef2f7; --surface: #ffffff;
  --ink: #0f172a; --muted: #5b6472; --line: #e2e8f0;
  --cyan: #0ea5e9; --teal: #14b8a6; --amber: #f59e0b;
  --radius: 16px; --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(15,23,42,.05), 0 8px 24px -12px rgba(15,23,42,.12);
  --shadow-lg: 0 2px 4px rgba(15,23,42,.06), 0 20px 48px -20px rgba(15,23,42,.22);
  --ui: Inter, 'Neue Haas Grotesk', system-ui, -apple-system, sans-serif; --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #020617; --bg2: #0b1322; --surface: #0f172a;
    --ink: #f8fafc; --muted: #94a3b8; --line: #1e293b;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
    --shadow-lg: 0 2px 4px rgba(0,0,0,.5), 0 20px 48px -20px rgba(0,0,0,.8);
  }
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { background:var(--bg); color:var(--ink); font-family:var(--ui); font-size:16px; line-height:1.7; -webkit-font-smoothing:antialiased; }
::selection { background:rgba(14,165,233,.22); }
img { max-width:100%; height:auto; display:block; }
a { color:var(--teal); text-decoration:none; }
a:hover { text-decoration:underline; }
.container { width:min(1080px, 92vw); margin:0 auto; }
.skip-link { position:absolute; left:-999px; top:0; background:var(--cyan); color:#fff; padding:.6rem 1rem; border-radius:0 0 8px 0; z-index:200; }
.skip-link:focus { left:0; }

/* ---------- header ---------- */
.site-header { position:sticky; top:0; z-index:100; background:color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); border-bottom:1px solid var(--line); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:62px; }
.brand { display:flex; align-items:center; gap:.55rem; font-family:var(--mono); font-weight:700; font-size:1.02rem; color:var(--ink); }
.brand svg { width:26px; height:26px; }
.nav { display:flex; gap:1.4rem; align-items:center; }
.nav a { color:var(--muted); font-size:.84rem; letter-spacing:.04em; }
.nav a:hover { color:var(--ink); text-decoration:none; }
.nav a.cta { color:#fff; background:var(--teal); padding:.45rem 1rem; border-radius:999px; font-weight:600; }
.nav-toggle { display:none; background:none; border:none; color:var(--ink); font-size:1.3rem; cursor:pointer; }
@media (max-width:820px) {
  .nav { position:fixed; inset:62px 0 auto 0; flex-direction:column; background:var(--bg); padding:1.4rem; border-bottom:1px solid var(--line); gap:1rem; display:none; }
  .nav.open { display:flex; }
  .nav-toggle { display:block; }
}

/* ---------- hero ---------- */
.hero { padding:clamp(3rem, 8vw, 6rem) 0 3rem; position:relative; overflow:hidden; }
.hero::before { content:""; position:absolute; inset:auto -10% -30% -10%; height:60%; background:radial-gradient(ellipse at 50% 100%, rgba(20,184,166,.16), transparent 65%); pointer-events:none; }
.hero-grid { display:grid; grid-template-columns:1.05fr .95fr; gap:3rem; align-items:center; }
.hero-kicker { font-family:var(--mono); font-size:.74rem; letter-spacing:.3em; text-transform:uppercase; color:var(--teal); margin-bottom:1.2rem; }
.hero-title { font-size:clamp(2.1rem, 5vw, 3.4rem); line-height:1.08; font-weight:750; letter-spacing:-.02em; }
.hero-title em { font-style:normal; color:var(--cyan); }
.hero-sub { margin-top:1.2rem; color:var(--muted); font-size:1.06rem; max-width:52ch; }
.hero-actions { display:flex; gap:.8rem; margin-top:2rem; flex-wrap:wrap; }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:.5rem; padding:.8rem 1.5rem; border-radius:999px; font-size:.92rem; font-weight:600; border:1px solid transparent; cursor:pointer; transition:transform .15s ease, box-shadow .15s ease; }
.btn:hover { text-decoration:none; transform:translateY(-1px); }
.btn-primary { background:var(--teal); color:#fff !important; box-shadow:0 8px 24px -8px rgba(20,184,166,.5); }
.btn-ghost { background:transparent; color:var(--ink); border-color:var(--line); }
.btn-ghost:hover { border-color:var(--muted); }
.btn-amber { background:var(--amber); color:#0f172a !important; }
.hero-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:1.6rem; box-shadow:var(--shadow-lg); }
.hero-card h3 { font-size:1.02rem; margin-bottom:.4rem; }
.hero-card p { font-size:.92rem; color:var(--muted); margin-bottom:1rem; }
.node-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:.6rem; margin-top:1.2rem; }
.node { aspect-ratio:1; border-radius:14px; border:1px solid var(--line); background:var(--bg2); display:flex; align-items:center; justify-content:center; font-family:var(--mono); font-size:.8rem; color:var(--muted); position:relative; }
.node.active { border-color:var(--teal); color:var(--teal); box-shadow:0 0 0 1px rgba(20,184,166,.3), 0 0 24px -4px rgba(20,184,166,.4); }
.node::after { content:""; position:absolute; right:-.7rem; width:.5rem; height:.5rem; border-top:2px solid var(--muted); border-right:2px solid var(--muted); transform:rotate(45deg); }
.node:last-child::after { display:none; }

/* ---------- sections ---------- */
.section { padding:clamp(2.5rem, 6vw, 4.5rem) 0; }
.section-head { max-width:680px; margin-bottom:2.2rem; }
.eyebrow { font-family:var(--mono); font-size:.72rem; letter-spacing:.26em; text-transform:uppercase; color:var(--teal); margin-bottom:.7rem; }
.section-title { font-size:clamp(1.5rem, 3.4vw, 2.1rem); line-height:1.18; letter-spacing:-.01em; }
.section-sub { color:var(--muted); margin-top:.8rem; font-size:1rem; }

/* ---------- cards ---------- */
.cards { display:grid; grid-template-columns:repeat(auto-fill, minmax(300px, 1fr)); gap:1.2rem; }
.card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:1.5rem; box-shadow:var(--shadow); transition:box-shadow .2s ease, transform .2s ease; }
.card:hover { box-shadow:var(--shadow-lg); transform:translateY(-2px); }
.card h3 { font-size:1.06rem; margin-bottom:.4rem; }
.card p { font-size:.92rem; color:var(--muted); }
.card .card-meta { font-family:var(--mono); font-size:.7rem; letter-spacing:.12em; text-transform:uppercase; color:var(--cyan); margin-bottom:.6rem; display:block; }
.card-arrow { font-family:var(--mono); color:var(--teal); font-size:.8rem; margin-top:.8rem; display:inline-block; }

/* ---------- lifecycle / steps ---------- */
.steps { display:grid; gap:1rem; counter-reset:step; }
.step { display:grid; grid-template-columns:auto 1fr; gap:1.1rem; background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:1.4rem; }
.step-n { font-family:var(--mono); font-weight:700; font-size:1.1rem; color:var(--teal); width:2.6rem; height:2.6rem; display:flex; align-items:center; justify-content:center; border:1px solid var(--line); border-radius:50%; }
.step h3 { font-size:1.05rem; margin-bottom:.3rem; }
.step p { font-size:.94rem; color:var(--muted); }

/* ---------- capture form ---------- */
.capture { background:linear-gradient(135deg, color-mix(in srgb, var(--teal) 9%, var(--surface)), color-mix(in srgb, var(--cyan) 7%, var(--surface))); border:1px solid var(--line); border-radius:20px; padding:clamp(1.6rem, 4vw, 2.6rem); }
.capture h2 { font-size:clamp(1.3rem, 3vw, 1.8rem); margin-bottom:.5rem; }
.capture p { color:var(--muted); max-width:56ch; margin-bottom:1.4rem; }
.capture-form { display:grid; grid-template-columns:1fr auto; gap:.7rem; max-width:560px; }
.capture-form select, .capture-form input { padding:.85rem 1rem; border:1px solid var(--line); border-radius:12px; font:inherit; background:var(--surface); color:var(--ink); }
.capture-form select { min-width:0; }
.capture-note { font-size:.78rem; color:var(--muted); margin-top:.8rem; }
.capture-ok { background:color-mix(in srgb, var(--teal) 14%, var(--surface)); border:1px solid color-mix(in srgb, var(--teal) 40%, transparent); color:var(--teal); border-radius:12px; padding:.9rem 1.1rem; margin-top:1rem; font-size:.92rem; display:none; }

/* ---------- guide prose ---------- */
.guide { max-width:760px; margin:0 auto; }
.guide h1 { font-size:clamp(1.8rem, 4vw, 2.5rem); line-height:1.14; letter-spacing:-.02em; margin-bottom:.8rem; }
.guide .lede { font-size:1.1rem; color:var(--muted); margin-bottom:1.4rem; }
.guide .reviewed { font-family:var(--mono); font-size:.74rem; letter-spacing:.1em; color:var(--muted); margin-bottom:2rem; }
.guide h2 { font-size:1.35rem; margin:2.4rem 0 .8rem; letter-spacing:-.01em; }
.guide h3 { font-size:1.12rem; margin:1.8rem 0 .6rem; }
.guide p { margin-bottom:1rem; }
.guide ul, .guide ol { margin:0 0 1.2rem 1.2rem; }
.guide li { margin-bottom:.45rem; }
.guide blockquote { border-left:3px solid var(--teal); padding:.6rem 1.1rem; background:color-mix(in srgb, var(--teal) 7%, var(--surface)); border-radius:0 10px 10px 0; margin:1.2rem 0; }
.guide table { width:100%; border-collapse:collapse; margin:1.2rem 0; font-size:.92rem; }
.guide th, .guide td { border:1px solid var(--line); padding:.6rem .8rem; text-align:left; }
.guide th { background:var(--bg2); font-family:var(--mono); font-size:.78rem; letter-spacing:.06em; text-transform:uppercase; }
.guide .steps { margin:1.6rem 0; }
.guide .related { margin-top:3rem; padding-top:1.6rem; border-top:1px solid var(--line); }
.guide .related h3 { margin-bottom:1rem; }

/* ---------- pricing ---------- */
.pricing { display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:1.2rem; align-items:stretch; }
.price-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:1.6rem; display:flex; flex-direction:column; }
.price-card.featured { border-color:var(--teal); box-shadow:0 0 0 1px var(--teal), 0 24px 48px -24px rgba(20,184,166,.4); }
.price-card .tier { font-family:var(--mono); font-size:.72rem; letter-spacing:.22em; text-transform:uppercase; color:var(--teal); }
.price-card .amount { font-size:2.2rem; font-weight:750; margin:.4rem 0 .1rem; }
.price-card .amount small { font-size:1rem; color:var(--muted); font-weight:400; }
.price-card ul { list-style:none; margin:1.2rem 0 1.6rem; flex:1; }
.price-card li { padding:.4rem 0; font-size:.92rem; color:var(--muted); border-bottom:1px dashed var(--line); }
.price-card li::before { content:"·"; color:var(--teal); font-weight:700; margin-right:.5rem; }
.billing-toggle { display:flex; gap:.6rem; justify-content:center; margin:0 0 1.6rem; }
.billing-toggle button { padding:.55rem 1.1rem; border:1px solid var(--line); border-radius:999px; background:var(--surface); color:var(--muted); font:inherit; font-size:.85rem; cursor:pointer; }
.billing-toggle button.active { background:var(--ink); color:var(--surface); border-color:var(--ink); }
.billing-toggle .save-badge { color:var(--teal); font-size:.72rem; font-weight:700; }
.billing-amount-annual, .billing-period-annual { display:none; }
.paypal-btn { margin:.5rem 0 0; }
.mono-cta { font-family:var(--mono); font-size:.85rem; }.billing-annual { display:none; }
/* account page */
.acct-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:1.6rem; max-width:560px; margin:0 auto; }
.acct-status { display:flex; align-items:center; gap:.6rem; font-size:1rem; margin-bottom:1rem; }
.acct-pill { font-family:var(--mono); font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; padding:.35rem .8rem; border-radius:999px; }
.acct-pill.active { background:color-mix(in srgb, var(--teal) 16%, var(--surface)); color:var(--teal); border:1px solid var(--teal); }
.acct-pill.none { background:#f1f5f9; color:var(--muted); border:1px solid var(--line); }
.acct-field { margin:1rem 0; }
.acct-field label { display:block; font-size:.8rem; color:var(--muted); margin-bottom:.4rem; }
.acct-field input { width:100%; padding:.8rem 1rem; border:1px solid var(--line); border-radius:12px; font:inherit; background:var(--surface); color:var(--ink); }
.acct-num { display:flex; justify-content:space-between; align-items:center; padding:.6rem 0; border-bottom:1px dashed var(--line); font-size:.92rem; }
.acct-num .status { font-size:.78rem; color:var(--muted); }

/* ---------- misc ---------- */
.trust-badges { display:flex; flex-wrap:wrap; gap:.6rem; margin-top:2.4rem; }
.trust-badge { display:inline-flex; align-items:center; gap:.45rem; font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; color:var(--muted); border:1px solid var(--line); border-radius:999px; padding:.4rem .9rem; }
.trust-badge svg { width:14px; height:14px; }
.divider { height:1px; background:var(--line); margin:2rem 0; }
.lang-switch { font-family:var(--mono); font-size:.74rem; }
.lang-switch a { color:var(--muted); }
.lang-switch a.active { color:var(--teal); font-weight:700; }
.ad-slot { margin:0 auto; max-width:336px; min-height:110px; display:flex; align-items:center; justify-content:center; border:1px dashed var(--line); border-radius:12px; color:var(--muted); font-size:.75rem; font-family:var(--mono); letter-spacing:.1em; }
.ad-slot.labeled::before { content:"Sponsor"; }

/* ---------- footer ---------- */
.site-footer { border-top:1px solid var(--line); margin-top:2rem; padding:3rem 0 2rem; }
.footer-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(180px, 1fr)); gap:2rem; }
.footer-grid h4 { font-family:var(--mono); font-size:.74rem; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin-bottom:1rem; }
.footer-grid a { display:block; color:var(--muted); font-size:.92rem; margin-bottom:.5rem; }
.footer-grid a:hover { color:var(--ink); }
.footer-bottom { margin-top:2.4rem; padding-top:1.4rem; border-top:1px solid var(--line); color:var(--muted); font-size:.8rem; display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; }

/* ---------- forms ---------- */
.contact-form { display:grid; gap:.9rem; max-width:560px; }
.contact-form label { font-size:.86rem; font-weight:600; }
.contact-form input, .contact-form textarea, .contact-form select { padding:.85rem 1rem; border:1px solid var(--line); border-radius:12px; font:inherit; background:var(--surface); color:var(--ink); width:100%; }
.contact-form textarea { min-height:140px; }

@media (prefers-reduced-motion: reduce) {
  * { animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}