:root{--bg:#f4f8f8;--card:#fff;--ink:#15343a;--muted:#587076;--primary:#067276;--primary-dark:#045d61;--control-border:#708f91;--line:#d6e4e4;--soft:#e9f5f4;--danger:#b42318;--ring:#f79009;--shadow:0 12px 35px #15343a17;color:var(--ink);background:var(--bg);font-synthesis:none;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;margin:0;line-height:1.55}button,input{font:inherit}button{cursor:pointer}a{color:inherit}.container{width:min(1120px,100% - 32px);margin-inline:auto}.site-header{border-bottom:1px solid var(--line);background:#fffffff0}.header-inner{justify-content:space-between;align-items:center;gap:16px;min-height:68px;display:flex}.brand{align-items:center;gap:10px;font-weight:800;text-decoration:none;display:flex}.brand-mark{background:var(--primary);color:#fff;border-radius:10px;place-items:center;width:36px;height:36px;font-size:24px;display:grid}.nav{gap:18px;font-size:.9rem;display:flex}.nav a{min-height:44px;color:var(--muted);align-items:center;font-weight:650;text-decoration:none;display:flex}.nav a:hover{color:var(--primary)}main{overflow:hidden}.hero{text-align:center;padding:36px 0 22px}.eyebrow{color:var(--primary);letter-spacing:.09em;text-transform:uppercase;margin:0 0 7px;font-size:.78rem;font-weight:800}.hero h1{letter-spacing:-.035em;max-width:760px;margin:0 auto 10px;font-size:clamp(1.8rem,5vw,3rem);line-height:1.12}.hero-copy{max-width:650px;color:var(--muted);margin:0 auto}.trust{background:var(--soft);color:#286064;border-radius:999px;align-items:center;gap:7px;margin:14px 0 0;padding:7px 12px;font-size:.88rem;font-weight:650;display:inline-flex}.tool{background:var(--card);border:1px solid var(--line);width:min(760px,100% - 24px);box-shadow:var(--shadow);border-radius:22px;margin:0 auto 52px;overflow:hidden}.tabs{border-bottom:1px solid var(--line);background:#edf5f5;grid-template-columns:1fr 1fr;padding:7px;display:grid}.tab{min-height:48px;color:var(--muted);background:0 0;border:0;border-radius:14px;font-weight:750}.tab[aria-selected=true]{color:var(--primary);background:#fff;box-shadow:0 2px 8px #15343a14}.panel{padding:22px}.panel[hidden]{display:none}.field{margin-bottom:17px}.field label,.group-label{margin-bottom:7px;font-weight:700;display:block}.field input{border:1px solid var(--control-border);width:100%;min-height:48px;color:var(--ink);background:#fff;border-radius:10px;padding:10px 12px}.field input:focus,.tab:focus-visible,.btn:focus-visible,.preset:focus-visible,a:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-color:var(--primary)}.time-fields{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.preset-grid{grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:18px;display:grid}.preset{border:1px solid var(--control-border);min-height:44px;color:var(--primary-dark);background:#fff;border-radius:9px;padding:7px;font-weight:700}.preset:hover{background:var(--soft)}.timer-box{color:#fff;text-align:center;background:#102f35;border-radius:15px;place-items:center;min-height:113px;margin:3px 0 14px;padding:13px;display:grid}.timer{font-variant-numeric:tabular-nums;letter-spacing:.025em;white-space:nowrap;font-size:clamp(2.4rem,11vw,4.3rem);font-weight:800;line-height:1}.timer-label{color:#bbd5d6;letter-spacing:.12em;margin-top:7px;font-size:.78rem}.selection{background:var(--soft);color:#315e62;border-radius:10px;min-height:52px;margin:0 0 14px;padding:12px}.status{border:1px solid var(--line);min-height:52px;color:var(--muted);border-radius:10px;align-items:center;margin:0 0 14px;padding:10px 12px;font-weight:650;display:flex}.status.ringing{border-color:var(--ring);color:#814b00;background:#fff6e8}.actions{grid-template-columns:repeat(2,1fr);align-content:start;gap:9px;min-height:108px;display:grid}.btn{border:1px solid #0000;border-radius:10px;min-height:48px;padding:10px 15px;font-weight:750}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{border-color:var(--control-border);color:var(--ink);background:#fff}.btn-danger{background:var(--danger);color:#fff}.btn[hidden]{display:none}.content-section{padding:52px 0}.content-section.alt{background:#eaf3f3}.section-heading{text-align:center;max-width:680px;margin:0 auto 28px}.section-heading h2{margin:0 0 7px;font-size:clamp(1.5rem,4vw,2.1rem)}.section-heading p{color:var(--muted);margin:0}.steps,.benefits{gap:16px;display:grid}.step,.benefit,.notice,.faq-item{border:1px solid var(--line);background:#fff;border-radius:15px;padding:20px}.step-number{background:var(--primary);color:#fff;border-radius:50%;place-items:center;width:34px;height:34px;font-weight:800;display:grid}.step h3,.benefit h3{margin:12px 0 5px;font-size:1.05rem}.step p,.benefit p{color:var(--muted);margin:0}.benefits{grid-template-columns:1fr 1fr}.notice{border-left:5px solid var(--ring);background:#fffaf2;margin-top:22px}.notice h3{margin:0 0 5px}.notice p{color:#5f5544;margin:0}.faq-list{gap:10px;max-width:820px;margin:auto;display:grid}.faq-item{padding:0}.faq-item summary{cursor:pointer;padding:18px 20px;font-weight:750}.faq-item p{color:var(--muted);margin:0;padding:0 20px 18px}.site-footer{border-top:1px solid var(--line);color:var(--muted);text-align:center;padding:28px 0;font-size:.9rem}@media (width>=700px){.panel{padding:28px}.form-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}.steps,.benefits{grid-template-columns:repeat(3,1fr)}.actions{grid-template-columns:repeat(3,1fr);min-height:58px}}@media (width<=520px){.container{width:min(100% - 24px,1120px)}.header-inner{min-height:62px}.brand-text{font-size:.92rem}.nav{gap:10px;font-size:.75rem}.nav a:nth-child(2){display:none}.hero{padding-top:27px}.tool{border-radius:17px}.panel{padding:16px}.tab{font-size:.86rem}.preset-grid{grid-template-columns:repeat(2,1fr)}.benefits{grid-template-columns:1fr}}@media (width<=350px){.nav a:nth-child(3){display:none}.time-fields{gap:6px}.timer{font-size:2.25rem}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms!important;animation-duration:.01ms!important}}