/* ============================================================
   SOLTREVÉ — launch page
   Palette, type and motion honour Soltreve_Brand_Identity.md
   ============================================================ */

/* ---- Tokens: light (serene) is the default world ---- */
:root {
  --bg:          #F6F5F2;   /* off-white ground        */
  --bg-2:        #EDF1EE;   /* faint sea-glass shade    */
  --surface:     #FBFBF9;   /* raised card              */
  --serene:      #CBDCD3;   /* sea-glass                */
  --sage:        #9FBDB2;   /* sage                     */
  --text:        #28403B;   /* deep teal-charcoal ink   */
  --text-soft:   #5E6E68;
  --text-muted:  #85979A;
  --accent:      #D49A2E;   /* sun-gold                 */
  --accent-deep: #B07A28;
  --hairline:    #DEE4E0;
  --hairline-2:  #D7DDD9;

  /* brand-fixed warmth (the tinted SKU) — constant across themes */
  --skin:        #E7CDB4;
  --skin-line:   #D8BC9F;
  --warm-ink:    #3A2A1C;
  --warm-accent: #9A5A22;
  --warm-soft:   #7A6450;

  --ring-glow:   0 0 0 rgba(0,0,0,0);

  --maxw: 1120px;
  --pad: clamp(1.25rem, 5vw, 3.5rem);

  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Jost", system-ui, sans-serif;

  --step-0: 1rem;
  --step-1: 1.15rem;
  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:          #1B2A26;
    --bg-2:        #16211E;
    --surface:     #22332E;
    --serene:      #2E463F;
    --sage:        #3A554C;
    --text:        #F1F0EC;
    --text-soft:   #C0CCC5;
    --text-muted:  #8FA39A;
    --accent:      #E3B252;
    --accent-deep: #D49A2E;
    --hairline:    #33473F;
    --hairline-2:  #2B3D37;
    --ring-glow:   0 0 32px rgba(227,178,82,.18);
  }
}

/* explicit toggle wins over the OS media query, both directions */
:root[data-theme="light"] {
  --bg:#F6F5F2; --bg-2:#EDF1EE; --surface:#FBFBF9; --serene:#CBDCD3; --sage:#9FBDB2;
  --text:#28403B; --text-soft:#5E6E68; --text-muted:#85979A;
  --accent:#D49A2E; --accent-deep:#B07A28; --hairline:#DEE4E0; --hairline-2:#D7DDD9;
  --ring-glow: 0 0 0 rgba(0,0,0,0);
}
:root[data-theme="dark"] {
  --bg:#1B2A26; --bg-2:#16211E; --surface:#22332E; --serene:#2E463F; --sage:#3A554C;
  --text:#F1F0EC; --text-soft:#C0CCC5; --text-muted:#8FA39A;
  --accent:#E3B252; --accent-deep:#D49A2E; --hairline:#33473F; --hairline-2:#2B3D37;
  --ring-glow: 0 0 32px rgba(227,178,82,.18);
}

/* ---- Reset-ish ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background .5s var(--ease), color .5s var(--ease);
}
img, svg { max-width: 100%; }
a { color: inherit; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 50%; transform: translateX(-50%) translateY(-120%);
  top: .5rem; z-index: 50; background: var(--text); color: var(--bg);
  padding: .5rem 1rem; border-radius: 999px; font-size: .85rem; text-decoration: none;
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translateX(-50%) translateY(0); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---- Shared brand marks ---- */
.sun-ring {
  width: 15px; height: 15px; border-radius: 50%;
  border: 2px solid var(--accent);
  display: inline-block; flex: none;
}
.brand-word {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--text);
}

/* ---- Header ---- */
.site-head {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 1rem var(--pad);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  text-decoration: none;
}
.brand .brand-word { font-size: 1.05rem; }

.theme-toggle {
  display: inline-flex; align-items: center; gap: .5rem;
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--text-soft);
  font-family: var(--font-body); font-size: .8rem;
  letter-spacing: .12em; text-transform: uppercase;
  padding: .45rem .8rem; border-radius: 999px; cursor: pointer;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}
.theme-toggle:hover { border-color: var(--sage); color: var(--text); }
.theme-toggle-dot {
  width: 11px; height: 11px; border-radius: 50%;
  border: 2px solid var(--accent);
  background: radial-gradient(circle at 30% 30%, var(--accent) 0 45%, transparent 46%);
}
:root[data-theme="dark"] .theme-toggle-dot { background: none; }

/* ---- Layout rhythm ---- */
main > section { padding-inline: var(--pad); }

/* ============================ HERO ============================ */
.hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: grid; place-items: center;
  text-align: center;
  padding-block: clamp(3rem, 9vh, 7rem);
  overflow: hidden;
}
.hero-atmosphere {
  position: absolute; inset: 0; z-index: 0;
  display: grid; place-items: center; pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 8%, color-mix(in srgb, var(--serene) 55%, transparent), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.ring {
  position: absolute; border-radius: 50%;
  border: 1.5px solid var(--accent);
  opacity: .32;
  box-shadow: var(--ring-glow);
}
.ring-1 { width: min(78vw, 560px); aspect-ratio: 1; animation: breathe 11s var(--ease) infinite; }
.ring-2 { width: min(52vw, 380px); aspect-ratio: 1; opacity: .5; animation: breathe 11s var(--ease) infinite reverse; }

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: .28; }
  50%      { transform: scale(1.045); opacity: .46; }
}

.hero-inner {
  position: relative; z-index: 1;
  max-width: 40rem;
  display: flex; flex-direction: column; align-items: center;
  gap: 1.35rem;
}
.eyebrow {
  margin: 0;
  font-size: .8rem; letter-spacing: .28em; text-transform: uppercase;
  color: var(--accent-deep);
  /* recenter: letter-spacing adds trailing space, nudging centred text left */
  text-indent: .28em;
}
.lockup { display: flex; flex-direction: column; align-items: center; gap: .9rem; }
.lockup-ring {
  width: 30px; height: 30px; border-radius: 50%;
  border: 2.6px solid var(--accent); box-shadow: var(--ring-glow);
}
.lockup-word {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2rem, 7vw, 3.4rem);
  letter-spacing: .2em; line-height: 1; margin-left: .2em;
}
.hero-title {
  margin: 0;
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.6rem, 9vw, 5rem);
  line-height: 1.02; letter-spacing: -0.01em;
  text-wrap: balance;
}
.lede {
  margin: 0; max-width: 34rem;
  font-weight: 300; font-size: clamp(1.02rem, 2.2vw, 1.2rem);
  color: var(--text-soft); line-height: 1.65; text-wrap: pretty;
}

/* Notify form */
.notify {
  display: flex; gap: .5rem; width: min(28rem, 100%);
  margin-top: .4rem;
}
.notify input {
  flex: 1; min-width: 0;
  font-family: var(--font-body); font-size: 1rem;
  color: var(--text); background: var(--surface);
  border: 1px solid var(--hairline-2); border-radius: 999px;
  padding: .8rem 1.1rem;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.notify input::placeholder { color: var(--text-muted); }
.notify input:focus-visible {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
.notify button {
  flex: none;
  font-family: var(--font-body); font-weight: 500; font-size: .95rem;
  letter-spacing: .02em;
  color: var(--bg); background: var(--text);
  border: 1px solid var(--text); border-radius: 999px;
  padding: .8rem 1.4rem; cursor: pointer;
  transition: background .25s var(--ease), transform .15s var(--ease);
}
.notify button:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.notify button:active { transform: translateY(1px); }
.notify.is-done input { opacity: .55; }

.form-note {
  margin: 0; font-size: .85rem; color: var(--text-muted); min-height: 1.2em;
}
.form-note.error { color: #C05746; }
.form-note.success { color: var(--accent-deep); }

/* ========================= SHOWCASE ========================= */
.showcase {
  max-width: var(--maxw); margin-inline: auto;
  padding-block: clamp(3rem, 8vh, 6rem);
}
.bottles {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
}
.bottle-card {
  display: flex; flex-direction: column; align-items: center;
  gap: 1.25rem; text-align: center;
}
.bottle-stage {
  width: 100%;
  display: grid; place-items: center;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  background: linear-gradient(180deg, var(--bg-2), color-mix(in srgb, var(--serene) 26%, var(--bg-2)));
  border: 1px solid var(--hairline);
  border-radius: 26px;
}
.bottle {
  width: auto; height: clamp(300px, 54vw, 420px);
  transition: transform .5s var(--ease);
  filter: drop-shadow(0 20px 30px rgba(40,64,59,.14));
}
.bottle-card:hover .bottle { transform: translateY(-8px); }

/* Tall slim fluid bottle (La Roche-Posay Anthelios / Isdin silhouette) */
.bottle-shadow { fill: var(--text); opacity: .07; }
/* cap + body are a physical object: fixed colours, not theme tokens.
   Untinted = cool sea-glass body · Tinted = warm skin body (brand SKU cue) */
.bottle-cap { fill: #BFD4C9; stroke: #A5BEB2; stroke-width: .6; }
.bottle-cap.warm { fill: #DEC8AF; stroke: #CDB79E; stroke-width: .6; }
.body-untinted { fill: #CFE0D7; stroke: #B4C9BF; stroke-width: .6; }
.body-tinted   { fill: var(--skin); stroke: var(--skin-line); stroke-width: .6; }
.bottle-highlight { fill: #FFFFFF; opacity: .5; }
.bottle-highlight.warm { opacity: .3; }

.badge-ring { fill: none; stroke: var(--accent); stroke-width: 1.8; }
.badge-ring.warm { stroke: var(--warm-accent); }

.svg-word  { font-family: var(--font-display); font-weight: 600; font-size: 13px; letter-spacing: 2px; fill: #28403B; }
.svg-sub   { font-family: var(--font-body); font-weight: 400; font-size: 4.6px; letter-spacing: 1.3px; fill: #85979A; }
.svg-rule  { stroke: var(--accent); stroke-width: .6; }
.svg-face  { font-family: var(--font-body); font-weight: 400; font-size: 8px; letter-spacing: .4px; fill: #85979A; }
.svg-spf   { font-family: var(--font-display); font-weight: 700; font-size: 40px; fill: #28403B; }
.svg-spf-label { font-family: var(--font-body); font-weight: 500; font-size: 5.4px; letter-spacing: .7px; fill: var(--accent-deep); }
.svg-name  { font-family: var(--font-display); font-weight: 600; font-size: 7.8px; letter-spacing: .4px; fill: #28403B; }
.svg-claim { font-family: var(--font-body); font-weight: 400; font-size: 5.2px; letter-spacing: .3px; fill: #5E6E68; }
.svg-claim.faint { font-weight: 300; fill: #90A099; }
.svg-net   { font-family: var(--font-body); font-weight: 400; font-size: 6.6px; letter-spacing: 1px; fill: #5E6E68; }

.tint-band { fill: none; stroke: var(--accent); stroke-width: .8; }
.tint-band.warm { stroke: var(--warm-accent); }
.svg-finish { font-family: var(--font-body); font-weight: 500; font-size: 7px; letter-spacing: 3px; fill: var(--accent-deep); }

/* tinted variants keep warm on-pack ink regardless of page theme (matches real pack) */
.svg-word.warm  { fill: var(--warm-ink); }
.svg-sub.warm   { fill: var(--warm-soft); }
.svg-face.warm  { fill: var(--warm-soft); }
.svg-rule.warm  { stroke: var(--warm-accent); }
.svg-spf.warm   { fill: var(--warm-ink); }
.svg-spf-label.warm { fill: var(--warm-accent); }
.svg-name.warm  { fill: var(--warm-ink); }
.svg-claim.warm { fill: #6E5340; }
.svg-claim.warm.faint { fill: #8A6E54; }
.svg-net.warm   { fill: #6E5340; }
.svg-finish.warm { fill: var(--warm-accent); }

.bottle-card figcaption { max-width: 22rem; display: flex; flex-direction: column; gap: .4rem; }
.bottle-card h3 {
  margin: 0; font-family: var(--font-display); font-weight: 600;
  font-size: 1.35rem; letter-spacing: .02em;
}
.bottle-card figcaption p { margin: 0; color: var(--text-soft); font-weight: 300; }

/* ======================== ATTRIBUTES ======================== */
.attributes {
  max-width: var(--maxw); margin-inline: auto;
  padding-block: clamp(3rem, 8vh, 6rem);
  border-top: 1px solid var(--hairline);
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem); align-items: start;
}
.attrs-head { display: flex; flex-direction: column; gap: 1rem; }
.section-label {
  margin: 0; font-size: .78rem; letter-spacing: .26em; text-transform: uppercase;
  color: var(--accent-deep);
}
.attrs-head h2 {
  margin: 0; font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem); line-height: 1.24; text-wrap: balance;
}
.attrs-lede { margin: 0; color: var(--text-soft); font-weight: 300; max-width: 32rem; }

ul.attrs { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
ul.attrs li {
  display: flex; align-items: baseline; gap: .85rem;
  padding: 1rem 0; border-bottom: 1px solid var(--hairline);
  font-size: 1.05rem; color: var(--text);
}
ul.attrs li:first-child { padding-top: 0; }
ul.attrs li:last-child { border-bottom: 0; }
.attr-mark {
  flex: none; width: 9px; height: 9px; border-radius: 50%;
  border: 2px solid var(--accent); transform: translateY(1px);
}

/* ========================== ETHOS =========================== */
.ethos {
  padding-block: clamp(4rem, 11vh, 8rem);
  background: linear-gradient(180deg, var(--bg), var(--bg-2));
  border-top: 1px solid var(--hairline);
  text-align: center;
}
.ethos-inner {
  max-width: 40rem; margin-inline: auto;
  display: flex; flex-direction: column; align-items: center; gap: 1.4rem;
}
.ethos-ring {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2.4px solid var(--accent); box-shadow: var(--ring-glow);
}
.ethos-tagline {
  margin: 0; font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2rem, 6vw, 3rem); letter-spacing: .01em;
}
.ethos-body {
  margin: 0; font-weight: 300; font-size: clamp(1.02rem, 2.2vw, 1.18rem);
  color: var(--text-soft); line-height: 1.7; text-wrap: pretty;
}
.ethos-body em { font-style: italic; color: var(--text); }

/* ========================== FOOTER ========================== */
.site-foot {
  padding: clamp(2.5rem, 6vh, 4rem) var(--pad);
  border-top: 1px solid var(--hairline);
  display: flex; flex-direction: column; align-items: center; gap: .7rem;
  text-align: center;
}
.foot-brand { display: inline-flex; align-items: center; gap: .55rem; }
.foot-brand .brand-word { font-size: 1rem; }
.foot-taglines { margin: 0; color: var(--text-soft); font-size: .95rem; }
.foot-legal { margin: 0; color: var(--text-muted); font-size: .82rem; max-width: 34rem; }
.foot-legal a { color: var(--accent-deep); text-underline-offset: 2px; }
.foot-copy { margin: .3rem 0 0; color: var(--text-muted); font-size: .78rem; letter-spacing: .04em; }

/* ========================= MOTION =========================== */
.reveal {
  opacity: 0; transform: translateY(16px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .bottle { transition: none; }
}

/* ======================= RESPONSIVE ========================= */
@media (max-width: 720px) {
  .attributes { grid-template-columns: 1fr; }
  .notify { flex-direction: column; }
  .notify button { width: 100%; }
  .theme-toggle-label { display: none; }
  .theme-toggle { padding: .45rem; }
}
@media (max-width: 460px) {
  .bottles { grid-template-columns: 1fr; gap: 2.5rem; }
}