/* ==========================================================================
   Stone Flow Scapes: effects
   Logo, first-visit intro, ripples, pollen, word reveals, tilt, marquee,
   and the footer wordmark. Everything rests under reduced motion.
   ========================================================================== */

/* the cairn logo: three river stones over moving water */
.logo-mark .st { fill: currentColor; transform-box: fill-box; transform-origin: 50% 100%; transition: transform .7s var(--ease); }
.logo-mark .st2 { opacity: .84; }
.logo-mark .st3 { opacity: .68; }
.logo-mark .wv { fill: none; stroke: #8FC1B6; stroke-width: 2.6; stroke-linecap: round; stroke-dasharray: 9 3.3; }
.nav.solid .logo-mark .wv, .pv-bar .logo-mark .wv { stroke: var(--water); }
.logo:hover .logo-mark .wv { animation: wvflow 1.4s linear infinite; }
.logo:hover .logo-mark .st3 { transform: translateY(-1.6px) rotate(-4deg); }
.logo:hover .logo-mark .st2 { transform: translateY(-.8px) rotate(2deg); }
@keyframes wvflow { to { stroke-dashoffset: -24.6; } }
.logo-word { display: flex; flex-direction: column; line-height: 1; }
.logo-word b { font: 500 22px/1 var(--f-display); letter-spacing: -.015em; white-space: nowrap; }
.logo-word small { font: 600 9.5px/1 var(--f-body); letter-spacing: .5em; text-transform: uppercase; margin-top: 5px; opacity: .78; }
.pv-bar .logo, .nav.solid .logo { color: var(--green); }

/* nav: a thin growing line shows how far down the page you are */
.nav-progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; transform-origin: left; transform: scaleX(var(--p, 0)); background: linear-gradient(90deg, var(--green), #6FA59B, var(--earth)); opacity: 0; transition: opacity .6s var(--ease); pointer-events: none; }
.nav.solid .nav-progress { opacity: 1; }

/* first-visit intro: the stones settle, the water draws, the curtain lifts */
.intro { position: fixed; inset: 0; z-index: 400; display: grid; place-items: center; background: var(--green-deep); color: var(--white); clip-path: inset(0 0 0 0); transition: clip-path 1.15s cubic-bezier(.76, 0, .24, 1); }
.intro.out { clip-path: inset(0 0 100% 0); }
.intro-in { display: flex; flex-direction: column; align-items: center; gap: 22px; transition: opacity .6s var(--ease), transform 1.1s var(--ease); }
.intro.out .intro-in { opacity: 0; transform: translateY(-40px); }
.intro-mark { width: 112px; height: 112px; overflow: visible; }
.intro-mark .st { fill: currentColor; opacity: 0; transform-box: fill-box; transform: translateY(-34px); animation: drop .8s cubic-bezier(.34, 1.56, .64, 1) forwards; }
.intro-mark .st1 { animation-delay: .1s; }
.intro-mark .st2 { animation-delay: .35s; --o: .84; }
.intro-mark .st3 { animation-delay: .6s; --o: .68; }
@keyframes drop { to { opacity: var(--o, 1); transform: none; } }
.intro-mark .wv { fill: none; stroke: #8FC1B6; stroke-width: 2.4; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 1s .85s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.intro-word { text-align: center; opacity: 0; animation: fadeUp .9s 1s var(--ease) forwards; }
.intro-word b { display: block; font: 400 34px/1 var(--f-display); letter-spacing: -.02em; }
.intro-word small { display: block; font: 600 11px/1 var(--f-body); letter-spacing: .55em; text-transform: uppercase; margin-top: 10px; opacity: .75; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
body.intro-on { overflow: hidden; }

/* hero name: letters rise out of the water one by one */
.hero-name.split-ch { animation: none; }
.hero-name .ch { display: inline-block; opacity: 0; transform: translateY(.32em) rotate(3deg); filter: blur(10px); }
.hero-name .wd { display: inline-block; white-space: nowrap; }
html.ready .hero-name .ch { animation: chIn 1.5s cubic-bezier(.22, .61, .21, 1) forwards; animation-delay: calc(.15s + var(--i) * 42ms); }
@keyframes chIn { to { opacity: 1; transform: none; filter: blur(0); } }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* headlines grow in word by word */
.split .w { display: inline-block; overflow: hidden; vertical-align: top; padding: 0 .06em .1em 0; margin: 0 -.06em -.1em 0; }
.split .w > span { display: inline-block; transform: translateY(112%); transition: transform 1.25s cubic-bezier(.22, .61, .21, 1); transition-delay: calc(var(--i) * 60ms); }
.split.in .w > span { transform: none; }
.js .grow.split { opacity: 1; transform: none; }

/* a water ripple wherever you tap or click */
.ripple { position: fixed; z-index: 500; left: 0; top: 0; width: 18px; height: 18px; margin: -9px 0 0 -9px; border-radius: 50%; border: 1.5px solid rgba(111, 165, 155, .85); pointer-events: none; animation: ripple 1.2s cubic-bezier(.22, .61, .21, 1) forwards; }
.ripple.r2 { animation-delay: .16s; opacity: 0; }
@keyframes ripple { 0% { transform: scale(.3); opacity: .9; } 100% { transform: scale(5.5); opacity: 0; } }

/* pollen drifting through the golden light over the hero */
.pollen { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; mix-blend-mode: screen; }

/* buttons lean toward the cursor */
.btn { transition: background .5s var(--ease), color .5s var(--ease), border-color .5s var(--ease), transform .5s var(--ease), box-shadow .5s var(--ease), translate .45s var(--ease); }

/* cards tilt in 3D with a soft glare */
.tilt { position: relative; transition: transform .7s var(--ease), border-color .7s var(--ease); will-change: transform; }
.tilt::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: radial-gradient(circle at var(--gx, 50%) var(--gy, 50%), rgba(255, 255, 255, .3), rgba(255, 255, 255, 0) 55%); opacity: 0; transition: opacity .6s var(--ease); z-index: 2; }
.tilt:hover::after { opacity: 1; }
.tilt.moving { transition: transform .12s linear, border-color .7s var(--ease); }

/* photos drift slower than the page */
.plx img { scale: 1.14; }

/* a slow river of everything we build */
.marquee { padding: clamp(44px, 6vw, 84px) 0; overflow: hidden; background: var(--bg); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.mq-row { overflow: hidden; white-space: nowrap; }
.mq-track { display: inline-flex; align-items: center; gap: .42em; font: 300 clamp(42px, 7vw, 104px)/1.12 var(--f-display); letter-spacing: -.03em; color: var(--green); will-change: transform; }
.mq-rev .mq-track { color: transparent; -webkit-text-stroke: 1.2px rgba(45, 74, 45, .5); font-style: italic; }
.mq-track svg { width: .38em; height: .38em; flex: none; color: var(--earth); }
.mq-rev .mq-track svg { color: #6FA59B; }

/* footer: a giant wordmark that fills with water as you arrive */
.foot-mark { position: relative; max-width: 1400px; margin: clamp(56px, 8vw, 96px) auto 0; padding: 0 var(--gut); font: 400 clamp(40px, 10.6vw, 176px)/.95 var(--f-display); letter-spacing: -.04em; white-space: nowrap; text-align: center; user-select: none; }
.fm-line { display: block; color: transparent; -webkit-text-stroke: 1px rgba(250, 250, 246, .22); }
.fm-fill { position: absolute; inset: 0 var(--gut); color: transparent; background: linear-gradient(180deg, #B8DDD4 0%, #6FA59B 55%, #3F7A72 100%); -webkit-background-clip: text; background-clip: text; clip-path: inset(calc(100% - var(--fill, 0%)) 0 0 0); }

@media (max-width: 640px) {
  .logo-mark { width: 34px; height: 34px; }
  .logo-word b { font-size: 19px; }
  .logo-word small { font-size: 8.5px; letter-spacing: .44em; }
}
@media (prefers-reduced-motion: reduce) {
  .split .w > span, .hero-name .ch { transform: none !important; opacity: 1 !important; filter: none !important; }
  .fm-fill { clip-path: none; }
}