/* ============================================================
   ECO SPAS — design system
   Technical-editorial. OKLCH neutrals tinted toward steam-blue,
   amber for key numbers, steam for utility accents.
   Bricolage Grotesque · Public Sans · Fragment Mono.
   ============================================================ */

/* ---- Tokens ------------------------------------------------ */
:root {
  /* Neutrals (oklch, warm paper / blue-black ink) */
  --canvas:      oklch(97% 0.006 90);   /* warm paper background */
  --canvas-2:    oklch(99% 0.004 90);   /* lighter paper / cards */
  --canvas-deep: oklch(94% 0.008 90);   /* shaded paper */
  --ink:         oklch(20% 0.012 240);  /* near-black, slight blue */
  --ink-2:       oklch(38% 0.010 240);  /* secondary text */
  --ink-3:       oklch(58% 0.008 240);  /* tertiary / labels */
  --hairline:    oklch(85% 0.006 90);   /* warm border */
  --hairline-2:  oklch(78% 0.008 90);   /* heavier border */

  /* Accents */
  --steam:       oklch(54% 0.13 240);   /* utility blue */
  --steam-deep:  oklch(40% 0.13 240);   /* hover */
  --amber:       oklch(72% 0.16 75);    /* key numbers / highlight */
  --amber-deep:  oklch(58% 0.16 65);
  --ink-on-amber: oklch(15% 0.02 60);

  /* ---- Legacy aliases (so home.css / hottubs.css keep working) ---- */
  --bone:        var(--canvas);
  --bone-2:      var(--canvas-deep);
  --paper:       var(--canvas-2);
  --white:       var(--canvas-2);
  --ink-soft:    var(--ink-2);
  --muted:       var(--ink-3);
  --line:        var(--hairline);
  --line-soft:   oklch(90% 0.005 90);
  --spruce:      var(--ink);            /* dark sections = ink */
  --spruce-2:    oklch(30% 0.012 240);
  --spruce-deep: oklch(13% 0.015 240);
  --frost:       var(--steam);
  --frost-soft:  oklch(90% 0.03 240);
  --ember:       var(--amber);
  --ember-2:     var(--amber-deep);
  --ember-soft:  oklch(91% 0.05 75);

  /* Accent (swappable via Tweaks) — amber by default */
  --accent:      var(--amber);
  --accent-2:    var(--amber-deep);
  --accent-soft: oklch(91% 0.05 75);
  --on-accent:   var(--ink-on-amber);

  /* Type */
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body:    "Public Sans", system-ui, sans-serif;
  --font-mono:    "Fragment Mono", ui-monospace, monospace;

  /* Spacing rhythm */
  --pad-x: clamp(20px, 5vw, 80px);
  --maxw: 1240px;

  --radius:    6px;
  --radius-lg: 8px;
  --radius-sm: 2px;

  --shadow-sm: 0 1px 2px oklch(20% 0.02 240 / .05);
  --shadow:    0 1px 2px oklch(20% 0.02 240 / .04), 0 22px 50px oklch(20% 0.02 240 / .08);
  --shadow-lg: 0 30px 80px oklch(20% 0.02 240 / .14);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* Alternate font pairings (Tweak) */
body.font-grotesk-mono {
  --font-display: "Fragment Mono", ui-monospace, monospace;
}
body.font-editorial {
  --font-display: "Public Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(15px, 0.4vw + 14px, 17px);
  line-height: 1.55;
  font-feature-settings: "ss01", "kern", "liga";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--amber); color: var(--ink-on-amber); }

/* ---- Type scale ------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.03;
  margin: 0;
  text-wrap: balance;
}
.display {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 84, "opsz" 96;
  font-weight: 800;
  font-size: clamp(46px, 7.6vw, 116px);
  letter-spacing: -0.04em;
  line-height: 0.92;
}
h2 { font-size: clamp(30px, 4.2vw, 54px); font-variation-settings: "wdth" 92, "opsz" 40; letter-spacing: -0.03em; }
h3 { font-size: clamp(20px, 2.2vw, 28px); font-variation-settings: "wdth" 95, "opsz" 24; }
.lede { font-size: clamp(17px, 1.4vw, 21px); line-height: 1.5; color: var(--ink-2); text-wrap: pretty; }

/* mono eyebrow / kicker */
.kicker {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 400;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-3);
}
.kicker::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--steam); flex: none;
}
.kicker.on-dark { color: oklch(72% 0.02 240); }
.kicker.on-dark::before { background: var(--amber); }

/* ---- Layout ----------------------------------------------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad-x); }
section { position: relative; }
.section-pad { padding-block: clamp(64px, 9vw, 128px); }

/* ---- Buttons (mono, sharp, ink-primary) ------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font-mono); font-weight: 400; font-size: 12.5px;
  letter-spacing: .12em; text-transform: uppercase;
  padding: 14px 22px; border-radius: var(--radius-sm); border: 1px solid var(--ink);
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s;
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ink); color: var(--canvas); }
.btn-primary:hover { background: var(--steam-deep); border-color: var(--steam-deep); }
.btn-dark { background: var(--ink); color: var(--canvas); border-color: var(--ink); }
.btn-dark:hover { background: var(--steam-deep); border-color: var(--steam-deep); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--hairline-2); }
.btn-ghost:hover { background: var(--ink); color: var(--canvas); border-color: var(--ink); }
.btn-ghost.on-dark { color: var(--canvas); border-color: oklch(100% 0 0 / .32); }
.btn-ghost.on-dark:hover { background: var(--canvas); color: var(--ink); border-color: var(--canvas); }
.btn-lg { padding: 17px 28px; font-size: 13px; }
.btn-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--steam-deep); border-bottom: 1px solid var(--steam); padding-bottom: 3px;
  transition: gap .2s var(--ease), color .2s;
}
.btn-link:hover { gap: 13px; color: var(--ink); }
.btn-link svg { width: 14px; height: 14px; transition: transform .2s var(--ease); }

/* ---- Header ----------------------------------------------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 80;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  border-bottom: 1px solid transparent;
}
.site-header .bar {
  display: flex; align-items: center; gap: 24px;
  height: 70px; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad-x);
}
.site-header.scrolled {
  background: color-mix(in oklab, var(--canvas) 90%, transparent);
  backdrop-filter: blur(8px) saturate(1.2);
  -webkit-backdrop-filter: blur(8px) saturate(1.2);
  border-bottom-color: var(--hairline);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 17px; letter-spacing: 0.02em; flex: none; white-space: nowrap; }
.brand-mark {
  width: 28px; height: 28px; border-radius: var(--radius-sm); flex: none;
  background: var(--ink); color: var(--canvas);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800; font-size: 16px; letter-spacing: -0.05em;
}
.brand small {
  display: block; font-family: var(--font-mono); font-weight: 400; font-size: 10px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); margin-top: 2px;
}
.nav { display: flex; align-items: center; gap: 20px; margin-left: 14px; }
.nav a {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-2); padding: 4px 0; border-bottom: 1px solid transparent; white-space: nowrap;
  transition: color .2s, border-color .2s;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.nav a.is-active { color: var(--ink); border-bottom-color: var(--ink); }
/* Build dropdown */
.nav-item { position: relative; display: flex; align-items: center; }
.nav-dd-btn { font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); background: none; border: 0; padding: 4px 0; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; transition: color .2s; }
.nav-dd-btn::after { content: "▾"; font-size: 9px; opacity: .7; }
.nav-item:hover .nav-dd-btn, .nav-item:focus-within .nav-dd-btn, .nav-item.open .nav-dd-btn { color: var(--ink); }
.nav-item::after { content: ""; position: absolute; top: 100%; left: -12px; right: -12px; height: 18px; }
.nav-dd { position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%) translateY(-6px); min-width: 215px; background: var(--canvas); border: 1px solid var(--hairline); box-shadow: var(--shadow); border-radius: var(--radius-sm); padding: 6px; opacity: 0; visibility: hidden; transition: opacity .18s var(--ease), transform .18s var(--ease); z-index: 90; }
.nav-item:hover .nav-dd, .nav-item:focus-within .nav-dd, .nav-item.open .nav-dd { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-dd a { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); padding: 10px 12px; border-radius: var(--radius-sm); white-space: nowrap; transition: background .15s, color .15s; }
.nav-dd a:hover { background: var(--canvas-deep); color: var(--ink); }
.mobile-menu a.mm-sub { font-size: 18px; color: var(--ink-2); padding-left: 16px; }
.header-right { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.phone-link { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; color: var(--ink-2); }
.phone-link svg { width: 15px; height: 15px; color: var(--steam); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--hairline-2); border-radius: var(--radius-sm); background: var(--canvas-2); align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content:""; display:block; width:18px; height:2px; background: var(--ink); position: relative; transition: .25s var(--ease); }
.nav-toggle span::before { position:absolute; top:-6px; } .nav-toggle span::after { position:absolute; top:6px; }

.mobile-menu { display: none; }

/* ---- Chips (mono technical) ------------------------------- */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-2);
  background: var(--canvas-2); border: 1px solid var(--hairline);
  padding: 8px 13px; border-radius: var(--radius-sm);
}
.chip svg { width: 14px; height: 14px; color: var(--steam); }

.trust-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---- Cards ------------------------------------------------ */
.card { background: var(--canvas-2); border: 1px solid var(--hairline); border-radius: var(--radius-lg); }

/* ---- Footer ----------------------------------------------- */
.site-footer { background: var(--spruce-deep); color: oklch(72% 0.02 240); padding-block: 72px 36px; font-family: var(--font-body); }
.site-footer h4 { color: var(--canvas); font-family: var(--font-mono); font-weight: 400; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 16px; }
.site-footer a { color: oklch(72% 0.02 240); font-size: 14.5px; line-height: 2.05; transition: color .15s; }
.footer-grid a:not(.brand) { display: block; }
.site-footer .brand, .site-footer .brand span { color: #fff; }
.site-footer .brand-mark { background: #fff; color: var(--spruce-deep); }
.site-footer a:hover { color: var(--canvas); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer-bottom { margin-top: 56px; padding-top: 26px; border-top: 1px solid oklch(100% 0 0 / .12); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: oklch(58% 0.02 240); }

/* ---- Reveal on scroll ------------------------------------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .07s; }
.reveal[data-d="2"] { transition-delay: .14s; }
.reveal[data-d="3"] { transition-delay: .21s; }
.reveal[data-d="4"] { transition-delay: .28s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }
html.reveal-instant .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }

/* ---- Image slot styling ----------------------------------- */
image-slot { display: block; background: var(--canvas-deep); border-radius: var(--radius); overflow: hidden; }

/* ---- Utility ---------------------------------------------- */
.ec-num { font-family: var(--font-display); font-feature-settings: "tnum" 1; }
.divider { height: 1px; background: var(--hairline); border: 0; margin: 0; }
.text-accent { color: var(--accent); }
.sr-only { position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0; }

/* ---- Responsive nav --------------------------------------- */
@media (max-width: 1100px) {
  .nav, .phone-link { display: none; }
  .nav-toggle { display: inline-flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .mobile-menu {
    display: block; position: fixed; inset: 70px 0 0 0; z-index: 70;
    background: var(--canvas); padding: 24px var(--pad-x);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity .25s var(--ease), transform .25s var(--ease);
    overflow-y: auto;
  }
  .mobile-menu.open { opacity: 1; transform: none; pointer-events: auto; }
  .mobile-menu a { display: block; font-family: var(--font-display); font-weight: 700; font-size: 28px; padding: 14px 0; border-bottom: 1px solid var(--hairline); }
  body.menu-open { overflow: hidden; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}