/* ============================================================================
   PaperBoat — Bathymetric identity, shared across all pages.
   Palette: aged paper / deep ink / buoy orange, with teal + seagrass accents.
   Type: Fraunces (display) · Spectral (body) · Space Mono (labels/data).
   Self-hosted fonts; a11y floor baked in. Link with:
     <link rel="stylesheet" href="/static/css/paperboat.css">
   ========================================================================== */

@font-face{font-family:'Fraunces';src:url('/static/fonts/Fraunces.ttf') format('truetype');font-weight:100 900;font-display:swap}
@font-face{font-family:'Fraunces';src:url('/static/fonts/Fraunces-Italic.ttf') format('truetype');font-weight:100 900;font-style:italic;font-display:swap}
@font-face{font-family:'Spectral';src:url('/static/fonts/Spectral-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:'Spectral';src:url('/static/fonts/Spectral-Medium.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:'Space Mono';src:url('/static/fonts/SpaceMono-Regular.ttf') format('truetype');font-weight:400;font-display:swap}

:root{
  --paper:#E7E0CE; --paper2:#EDE7D6; --card:#F3EEE1; --ink:#1B3A4B; --teal:#5B8A9B;
  --orange:#C8541E; --orange-d:#a8451a; --seag:#8A9A5B; --boat:#FBF7EE; --mute:#5f6b62; --line:#d8cfba;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Spectral',Georgia,'Times New Roman',serif;color:var(--ink);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
a{color:var(--orange);text-decoration:none}
h1,h2,h3{font-family:'Fraunces',Georgia,serif;font-weight:600;letter-spacing:-.01em;color:var(--ink)}
.mono{font-family:'Space Mono',ui-monospace,monospace}
.visually-hidden{clip-path:inset(50%);height:1px;width:1px;overflow:hidden;position:absolute;white-space:nowrap}

/* ---- accessibility floor ---- */
:focus-visible{outline:3px solid var(--ink);outline-offset:2px;box-shadow:0 0 0 6px var(--paper);border-radius:4px}
.skip-link{position:absolute;left:16px;top:-64px;background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:8px;z-index:200;transition:top .2s}
.skip-link:focus{top:16px}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* ---- nav ---- */
nav{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;max-width:1180px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:38px;height:38px}
.brand span{font-family:'Fraunces',serif;font-size:1.55rem;font-weight:600}
.navlinks{display:flex;align-items:center;gap:26px}
.navlinks a{color:var(--ink);font-family:'Space Mono',monospace;font-size:.82rem;letter-spacing:.03em}
.navlinks a:hover{color:var(--orange)}
.pill{background:var(--ink);color:var(--paper)!important;padding:10px 20px;border-radius:22px;font-family:'Space Mono',monospace;font-size:.82rem}
.pill:hover{background:var(--orange)}

/* ---- buttons + shared bits ---- */
.eyebrow{font-family:'Space Mono',monospace;font-size:.86rem;letter-spacing:.28em;color:var(--orange);text-transform:uppercase}
.btn{display:inline-block;background:var(--orange);color:var(--paper);padding:15px 30px;border-radius:30px;font-family:'Space Mono',monospace;font-size:.98rem;transition:transform .15s ease-out,background .2s;border:none;cursor:pointer}
.btn:hover{background:var(--orange-d);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn.ink{background:var(--ink)}.btn.ink:hover{background:#122a37}
.btn.block{display:block;width:100%;text-align:center}
.link-quiet{color:var(--ink);font-style:italic;border-bottom:1px solid var(--line)}
.link-quiet:hover{color:var(--orange)}

/* ---- hero (home) ---- */
.hero{position:relative;overflow:hidden;padding:34px 0 0}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:clamp(2.6rem,6.4vw,5rem);line-height:1.04;margin:18px 0 0;max-width:12ch}
.hero h1 em{font-style:italic;color:var(--teal)}
.lede{font-size:clamp(1.05rem,1.6vw,1.35rem);color:var(--mute);max-width:44ch;margin:26px 0 0}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin:32px 0 0}
.social-proof{font-family:'Space Mono',monospace;font-size:.82rem;letter-spacing:.04em;color:var(--mute);margin:20px 0 0}
.hero-band{width:100%;display:block;margin-top:-30px;pointer-events:none}
.boat-float{animation:bob 6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---- try-it search (home) ---- */
.try{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0}
.try h2{font-size:2rem;text-align:center}
.try p.sub{text-align:center;color:var(--mute);max-width:52ch;margin:12px auto 0}
.searchbox{max-width:760px;margin:34px auto 0;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 6px 26px rgba(27,58,75,.06)}
.searchbox textarea{width:100%;padding:15px;border:2px solid var(--line);border-radius:10px;font-family:'Spectral',serif;font-size:1rem;background:var(--paper2);resize:vertical;min-height:96px;color:var(--ink)}
.searchbox textarea:focus{outline:none;border-color:var(--teal)}
.controls{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}
.controls select{flex:1 1 200px;min-width:0;padding:12px;border:2px solid var(--line);border-radius:10px;background:var(--paper);font-family:'Spectral',serif;color:var(--ink)}
.controls button{flex:0 0 auto;white-space:nowrap}
.results{max-width:760px;margin:22px auto 0}
.paper{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:10px;padding:16px 18px;margin-bottom:12px}
.paper a.t{font-family:'Fraunces',serif;font-weight:600;font-size:1.08rem;color:var(--ink)}
.paper a.t:hover{color:var(--orange)}
.paper .meta{font-family:'Space Mono',monospace;font-size:.74rem;color:var(--mute);margin-top:6px;display:flex;gap:12px;flex-wrap:wrap}
.paper .match{color:var(--orange)}
.convert{max-width:760px;margin:20px auto 0;padding:24px;background:var(--boat);border:1px solid var(--line);border-radius:14px;text-align:center;box-shadow:0 6px 26px rgba(27,58,75,.06)}
.convert-line{margin:0 0 16px;color:var(--ink);font-family:'Fraunces',serif;font-size:1.18rem}
.hint{text-align:center;color:var(--mute);font-size:.9rem;margin-top:14px;font-style:italic}

/* ---- how it works (home) ---- */
.how{padding:72px 0}
.how h2{text-align:center;font-size:2rem}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:40px}
.step{position:relative;padding-top:14px}
.step .n{font-family:'Space Mono',monospace;color:var(--orange);font-size:.85rem;letter-spacing:.1em}
.step h3{font-size:1.3rem;margin:10px 0 8px}
.step p{color:var(--mute)}
.rule{height:1px;background:var(--line);border:none;margin:0}

/* ---- inner pages (subscribe / feedback / paper-of-the-day) ---- */
.page{padding:40px 0 76px}
.page-head{max-width:720px;margin:0 auto;text-align:center}
.page-head .eyebrow{display:block}
.page-head h1{font-size:clamp(2rem,4.6vw,3.2rem);margin:14px 0 0}
.page-head .lede{margin:16px auto 0;text-align:center}
.panel{max-width:660px;margin:34px auto 0;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:34px;box-shadow:0 8px 30px rgba(27,58,75,.07)}
.field{margin:0 0 20px}
.field label{display:block;font-family:'Space Mono',monospace;font-size:.78rem;letter-spacing:.03em;color:var(--ink);margin:0 0 8px;text-transform:uppercase}
.field input,.field select,.field textarea{width:100%;padding:13px 14px;border:2px solid var(--line);border-radius:10px;background:var(--paper);font-family:'Spectral',serif;font-size:1rem;color:var(--ink)}
.field textarea{resize:vertical;min-height:120px;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal)}
.field input[type=checkbox],.field input[type=radio]{width:auto}
.radio-row{display:flex;flex-direction:column;gap:10px}
.radio{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border:2px solid var(--line);border-radius:10px;background:var(--paper);cursor:pointer;font-size:.95rem;color:var(--ink);font-family:'Spectral',serif}
.radio input{margin-top:3px;flex:0 0 auto}
.radio span{line-height:1.45}
.radio:hover{border-color:var(--teal)}
.field .help{font-size:.85rem;color:var(--mute);margin-top:7px;font-style:italic}
.choice{display:flex;gap:12px;flex-wrap:wrap;margin-top:2px}
.choice label{display:flex;align-items:center;gap:9px;font-family:'Spectral',serif;font-size:.95rem;background:var(--paper);border:2px solid var(--line);border-radius:10px;padding:11px 15px;cursor:pointer;color:var(--ink);text-transform:none;letter-spacing:0}
.choice input{width:auto;margin:0}
.choice label:hover{border-color:var(--teal)}
.msg{border-radius:10px;padding:13px 16px;margin:0 0 20px;font-size:.95rem}
.msg-error{background:#f7e4da;border:1px solid var(--orange);color:var(--orange-d)}
.msg-ok{background:#e7ecdd;border:1px solid var(--seag);color:#48592c}
.center{text-align:center}

/* ---- paper of the day ---- */
.potd{max-width:760px;margin:30px auto 0;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:34px;box-shadow:0 8px 30px rgba(27,58,75,.07)}
.potd .kicker{font-family:'Space Mono',monospace;color:var(--orange);letter-spacing:.14em;font-size:.78rem;text-transform:uppercase}
.potd h2{font-size:clamp(1.5rem,3vw,2.15rem);margin:10px 0 0;line-height:1.15}
.potd .byline{color:var(--mute);font-style:italic;margin:12px 0 0}
.potd .journal{display:inline-block;font-family:'Space Mono',monospace;font-size:.76rem;color:var(--teal);border:1px solid var(--line);border-radius:20px;padding:5px 12px;margin:16px 0 0}
.potd .abs{margin:20px 0 0;color:#3a4650;line-height:1.75}
.potd .disc-nav{display:flex;flex-wrap:wrap;gap:9px;margin:26px auto 0;max-width:900px;justify-content:center}
.potd-chip{font-family:'Space Mono',monospace;font-size:.76rem;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:7px 13px;cursor:pointer}
.potd-chip:hover,.potd-chip.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ---- footer ---- */
footer{background:var(--ink);color:var(--paper2);padding:48px 0;margin-top:8px}
footer .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
footer a{color:var(--paper2)}
footer a:hover{color:var(--orange)}
footer .fl{display:flex;gap:20px;flex-wrap:wrap;font-family:'Space Mono',monospace;font-size:.82rem}
footer .brandf{font-family:'Fraunces',serif;font-size:1.3rem;display:flex;align-items:center;gap:10px}

@media (max-width:760px){
  /* nav wraps: brand on top, links (incl. Subscribe) tappable on a second row — never hidden */
  nav{flex-wrap:wrap;gap:10px 18px;padding:16px 18px}
  .navlinks{gap:18px;width:100%;font-size:.8rem}
  .navlinks a{padding:6px 2px}
  .brand span{font-size:1.35rem}
  .steps{grid-template-columns:1fr}
  .hero-band{margin-top:6px}
  .panel,.potd{padding:24px}
  .wrap{padding:0 18px}
}