/* Tailwater Guide Co. — "Sticky-Rail Editorial" layout system (multi-page) */
:root{
  --current:#0E1C1B; --ink:#081311; --tailwater:#143C39; --tw2:#1C4744;
  --mint:#46B58C; --mint-soft:#6FCBA6; --stone:#AEB4AC; --stone-dim:#7E8A84;
  --bone:#F1EEE7; --bone-2:#E3DED2; --brass:#B58A4B;
  --display:'Clash Display',sans-serif; --body:'Satoshi',sans-serif; --mono:'Space Mono',monospace;
  --ease:cubic-bezier(0.32,0.72,0,1); --rail:320px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--current);color:var(--bone);-webkit-font-smoothing:antialiased;line-height:1.62;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:0.98;letter-spacing:-0.02em}
em{font-style:normal;color:var(--mint)}
::selection{background:var(--mint);color:var(--ink)}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
body::after{content:"";position:fixed;inset:0;z-index:90;pointer-events:none;opacity:0.045;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ── Fixed editorial rail ── */
.rail{position:fixed;top:0;left:0;width:var(--rail);height:100vh;background:var(--ink);border-right:1px solid rgba(174,180,172,.12);display:flex;flex-direction:column;padding:34px 30px;z-index:50}
.rail .brand{font-family:var(--display);font-weight:600;font-size:20px;display:flex;align-items:center;gap:11px;letter-spacing:-0.01em}
.rail .brand .dot{width:9px;height:9px;border-radius:999px;background:var(--mint);box-shadow:0 0 0 4px rgba(70,181,140,.16)}
.rail .brand small{display:block;font-family:var(--mono);font-size:9px;letter-spacing:.22em;color:var(--stone-dim);text-transform:uppercase;margin-top:5px;font-weight:400}
.rail nav{margin-top:54px;display:flex;flex-direction:column;gap:3px}
.rail nav a{font-family:var(--display);font-weight:500;font-size:1.45rem;color:var(--stone);padding:7px 0;transition:color .3s var(--ease),padding-left .3s var(--ease);position:relative}
.rail nav a::before{content:"";position:absolute;left:-30px;top:50%;transform:translateY(-50%);width:0;height:2px;background:var(--mint);transition:width .3s var(--ease)}
.rail nav a:hover,.rail nav a.active{color:var(--bone)}
.rail nav a.active::before,.rail nav a:hover::before{width:18px}
.rail .rail-foot{margin-top:auto;display:flex;flex-direction:column;gap:18px}
.rail .flowmini{font-family:var(--mono);font-size:10.5px;color:var(--stone-dim);line-height:1.7;border-top:1px solid rgba(174,180,172,.12);padding-top:16px}
.rail .flowmini b{color:var(--mint)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:11px;font-family:var(--body);font-weight:700;font-size:14px;padding:13px 22px;border-radius:999px;cursor:pointer;border:1px solid transparent;transition:transform .5s var(--ease),background .4s}
.btn-primary{background:var(--mint);color:var(--ink)}.btn-primary:hover{background:var(--mint-soft)}
.btn-ghost{background:transparent;color:var(--bone);border-color:rgba(241,238,231,.24)}.btn-ghost:hover{border-color:var(--mint)}
.btn:active{transform:scale(.97)}

/* ── Scrolling main ── */
.main{margin-left:var(--rail);min-height:100vh}
.inner{max-width:1000px;padding:0 clamp(28px,5vw,72px)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--mint);font-weight:400}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brass)}

/* hero (home) */
.hero{padding:clamp(70px,11vh,130px) 0 0}
.hero h1{font-size:clamp(3rem,7vw,5.8rem);max-width:13ch;margin:20px 0 0}
.hero .sub{margin-top:22px;max-width:42ch;font-size:1.12rem;color:var(--stone)}
.hero .ctas{margin-top:30px;display:flex;gap:13px;flex-wrap:wrap}
.hero-img{margin-top:54px;border-radius:8px;overflow:hidden;border:1px solid rgba(174,180,172,.14)}
.hero-img img{width:100%;height:clamp(280px,46vh,480px);object-fit:cover}

/* page header (inner pages) */
.phead{padding:clamp(80px,12vh,150px) 0 0}
.phead h1{font-size:clamp(2.6rem,5.5vw,4.6rem);margin:18px 0 0}
.phead p{margin-top:18px;max-width:46ch;color:var(--stone);font-size:1.1rem}

.flowbar{margin-top:60px;display:flex;flex-wrap:wrap;gap:0;border:1px solid rgba(174,180,172,.14);border-radius:8px;overflow:hidden;background:var(--ink)}
.flowbar .fb{flex:1;min-width:180px;padding:16px 20px;border-right:1px solid rgba(174,180,172,.1)}
.flowbar .fb .n{font-weight:700;font-size:13px;display:flex;align-items:center;gap:8px}
.flowbar .fb .n .s{width:7px;height:7px;border-radius:999px;background:var(--mint)}
.flowbar .fb .d{font-family:var(--mono);font-size:11px;color:var(--stone);margin-top:4px}
.flowbar .fb .d b{color:var(--bone)}

.block{padding:clamp(56px,9vh,104px) 0}
.lede{font-family:var(--display);font-weight:600;font-size:clamp(1.7rem,3.2vw,2.7rem);line-height:1.08;max-width:20ch}
.muted{color:var(--stone)}
.sect-k{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--stone-dim)}
.sect-h{font-size:clamp(1.9rem,4vw,3rem);margin-top:12px}

/* editorial alternating rows */
.row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,60px);align-items:center;padding:40px 0;border-top:1px solid rgba(174,180,172,.12)}
.row:nth-child(even) .row-media{order:2}
.row-media{border-radius:8px;overflow:hidden;border:1px solid rgba(174,180,172,.14)}
.row-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.row .num{font-family:var(--mono);font-size:12px;color:var(--brass);letter-spacing:.1em}
.row h3{font-size:1.8rem;margin-top:10px}
.row p{color:var(--stone);margin-top:10px;font-size:15px;max-width:40ch}
@media(max-width:760px){.row{grid-template-columns:1fr;gap:18px}.row:nth-child(even) .row-media{order:0}}

/* simple cards (home previews) */
.mini{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
.mini a{border:1px solid rgba(174,180,172,.14);border-radius:8px;padding:22px;background:var(--tw2);transition:transform .5s var(--ease),border-color .4s;display:block}
.mini a:hover{transform:translateY(-3px);border-color:rgba(70,181,140,.5)}
.mini .num{font-family:var(--mono);font-size:11px;color:var(--brass)}
.mini h4{font-family:var(--display);font-weight:500;font-size:1.3rem;margin-top:36px}
.mini p{color:var(--stone);font-size:13.5px;margin-top:7px}
@media(max-width:760px){.mini{grid-template-columns:1fr}}

.feature{margin-top:34px;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,4vw,56px);align-items:center;padding:34px;border:1px solid rgba(174,180,172,.14);border-radius:10px;background:var(--tailwater)}
.feature img{border-radius:8px;width:100%;aspect-ratio:4/3;object-fit:cover}
.feature h3{font-size:2rem}.feature p{color:var(--stone);margin-top:12px}
@media(max-width:760px){.feature{grid-template-columns:1fr}}

/* contact */
.form{margin-top:36px;display:grid;gap:14px;max-width:440px}
.form input,.form textarea{background:var(--ink);border:1px solid rgba(174,180,172,.2);border-radius:8px;padding:13px 15px;color:var(--bone);font-family:var(--body);font-size:15px;width:100%}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--mint)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:10px}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr;gap:30px}}
.cinfo .ci{padding:16px 0;border-bottom:1px solid rgba(174,180,172,.12)}
.cinfo .ci .l{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--stone-dim)}
.cinfo .ci .v{font-size:1.05rem;margin-top:5px}

footer{margin-top:40px;border-top:1px solid rgba(174,180,172,.12);padding:36px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--stone-dim)}
.powered{font-family:var(--mono)}.powered a{color:var(--stone);border-bottom:1px solid var(--brass)}.powered a:hover{color:var(--mint)}

[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}[data-reveal]{opacity:1;transform:none}}

/* ── Mobile: rail → top bar ── */
@media(max-width:900px){
  :root{--rail:0px}
  .rail{position:sticky;width:100%;height:auto;flex-direction:row;align-items:center;padding:14px 20px;gap:16px;flex-wrap:wrap}
  .rail .brand small{display:none}
  .rail nav{margin-top:0;flex-direction:row;gap:16px;flex-wrap:wrap;flex:1}
  .rail nav a{font-size:1rem;padding:0}
  .rail nav a::before{display:none}
  .rail .rail-foot{margin-top:0;flex-direction:row;align-items:center}
  .rail .flowmini{display:none}
  .main{margin-left:0}
}