/* ============================================================================
   SEED CHEMICALS — Design System v1.0
   A new premium B2B construction & industrial chemicals platform.
   Visual language: light technical base · deep navy · charcoal · sky-blue
   chemical accent. Reference bar: BASF / Evonik corporate credibility +
   Sigma-Aldrich technical catalogue + Brenntag B2B flow.
   ----------------------------------------------------------------------------
   Author: Nexus / Vesper (SEED Group). Built 2026-06-12.
   Tokens live in :root. Components below. No external CSS framework.
   ============================================================================ */

/* ---------- 1. TOKENS ---------------------------------------------------- */
:root {
  /* Brand core */
  --navy-900: #061122;   /* deepest — hero, footer */
  --navy-800: #0A1E3F;   /* primary brand navy */
  --navy-700: #0F2A55;
  --navy-600: #163d72;
  --navy-500: #1f4f8f;

  /* Charcoal / ink neutrals */
  --ink-900: #0B1220;
  --ink-800: #131C2B;
  --ink-700: #1E293B;
  --ink-600: #334155;
  --ink-500: #475569;
  --ink-400: #64748B;
  --ink-300: #94A3B8;
  --ink-200: #CBD5E1;
  --ink-150: #DCE3EC;
  --ink-100: #E9EEF5;
  --ink-50:  #F4F7FB;

  /* Surface base */
  --paper:   #FFFFFF;
  --base:    #F7FAFD;     /* page background */
  --base-2:  #EEF3F9;     /* alternating section */
  --line:    #E2E9F2;     /* hairlines */

  /* Sky-blue chemical accent (locked --chem-accent #38BDF8) */
  --sky-400: #5ECCFA;
  --sky-500: #38BDF8;     /* primary accent */
  --sky-600: #0EA5E9;     /* interactive / link */
  --sky-700: #0284C7;     /* pressed */
  --sky-050: #E8F7FF;     /* tint wash */
  --sky-glow: rgba(56,189,248,.35);

  /* TENSYL — indigenous brand accent (teal/emerald) */
  --tensyl: #0E8A7E;
  --tensyl-deep: #0B6A60;
  --tensyl-050: #E6F6F3;

  /* Functional */
  --success: #10B981;
  --warning: #F59E0B;
  --danger:  #E0414B;

  /* Typography */
  --font-display: "Manrope", "Segoe UI", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", monospace;

  /* Scale (fluid) */
  --step--1: clamp(.78rem, .76rem + .1vw, .85rem);
  --step-0:  clamp(.95rem, .92rem + .15vw, 1.02rem);
  --step-1:  clamp(1.15rem, 1.07rem + .35vw, 1.35rem);
  --step-2:  clamp(1.45rem, 1.3rem + .7vw, 1.9rem);
  --step-3:  clamp(1.85rem, 1.55rem + 1.4vw, 2.7rem);
  --step-4:  clamp(2.3rem, 1.8rem + 2.4vw, 3.8rem);
  --step-5:  clamp(2.8rem, 2rem + 3.6vw, 5rem);

  /* Spacing */
  --sp-1: .25rem; --sp-2: .5rem; --sp-3: .75rem; --sp-4: 1rem;
  --sp-5: 1.5rem; --sp-6: 2rem; --sp-7: 3rem; --sp-8: 4rem;
  --sp-9: 6rem; --sp-10: 8rem;

  /* Radius */
  --r-xs: 4px; --r-sm: 7px; --r-md: 11px; --r-lg: 16px; --r-xl: 24px; --r-pill: 999px;

  /* Shadow — subtle, premium */
  --sh-1: 0 1px 2px rgba(11,18,32,.04), 0 1px 3px rgba(11,18,32,.06);
  --sh-2: 0 2px 6px rgba(11,18,32,.05), 0 6px 18px rgba(11,18,32,.07);
  --sh-3: 0 8px 24px rgba(11,18,32,.08), 0 18px 48px rgba(11,18,32,.10);
  --sh-sky: 0 8px 24px rgba(14,165,233,.22);

  --maxw: 1240px;
  --nav-h: 76px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. RESET / BASE --------------------------------------------- */
*,*::before,*::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.62;
  color: var(--ink-700);
  background: var(--base);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img,svg,video { display: block; max-width: 100%; }
a { color: var(--sky-700); text-decoration: none; }
a:hover { color: var(--sky-600); }
h1,h2,h3,h4,h5 { font-family: var(--font-display); color: var(--ink-900); line-height: 1.12; font-weight: 700; letter-spacing: -.02em; }
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }
p { color: var(--ink-600); }
strong { color: var(--ink-800); font-weight: 600; }
ul,ol { padding-left: 1.15rem; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--sky-600); outline-offset: 2px; border-radius: var(--r-xs); }
::selection { background: var(--sky-500); color: #fff; }

/* ---------- 3. LAYOUT ---------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2.5rem); }
.section { padding-block: clamp(3.5rem, 7vw, 7rem); }
.section--tight { padding-block: clamp(2.5rem, 4vw, 4rem); }
.section--alt { background: var(--base-2); }
.section--ink { background: var(--navy-900); color: var(--ink-150); }
.section--ink h2,.section--ink h3 { color: #fff; }
.section--ink p { color: var(--ink-300); }
.grid { display: grid; gap: var(--sp-5); }
.cols-2 { grid-template-columns: repeat(2,1fr); }
.cols-3 { grid-template-columns: repeat(3,1fr); }
.cols-4 { grid-template-columns: repeat(4,1fr); }
@media (max-width: 980px){ .cols-4{grid-template-columns:repeat(2,1fr);} .cols-3{grid-template-columns:repeat(2,1fr);} }
@media (max-width: 640px){ .cols-2,.cols-3,.cols-4{grid-template-columns:1fr;} }

.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-mono); font-size: var(--step--1);
  letter-spacing: .18em; text-transform: uppercase; font-weight: 500;
  color: var(--sky-700);
}
.eyebrow::before { content:""; width: 22px; height: 2px; background: var(--sky-500); display:inline-block; }
.section--ink .eyebrow { color: var(--sky-400); }
.lede { font-size: var(--step-1); color: var(--ink-500); max-width: 62ch; line-height: 1.55; }
.section-head { max-width: 70ch; margin-bottom: var(--sp-6); }
.section-head h2 { margin-top: .6rem; }
.center { text-align: center; margin-inline: auto; }

/* ---------- 4. BUTTONS --------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-family: var(--font-display); font-weight: 600; font-size: var(--step-0);
  padding: .8rem 1.4rem; border-radius: var(--r-sm); border: 1.5px solid transparent;
  transition: transform .18s var(--ease), box-shadow .2s var(--ease), background .18s, color .18s, border-color .18s;
  line-height: 1; white-space: nowrap; cursor: pointer; letter-spacing: -.01em;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--sky-600); color: #fff; box-shadow: var(--sh-sky); }
.btn--primary:hover { background: var(--sky-700); color:#fff; transform: translateY(-2px); }
.btn--navy { background: var(--navy-800); color: #fff; }
.btn--navy:hover { background: var(--navy-700); color:#fff; transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--ink-800); border-color: var(--ink-200); }
.btn--ghost:hover { border-color: var(--sky-500); color: var(--sky-700); background: var(--sky-050); }
.btn--light { background:#fff; color: var(--navy-800); border-color: var(--line); }
.btn--light:hover { background: var(--sky-050); color: var(--navy-800); transform: translateY(-2px); }
.btn--wa { background:#25D366; color:#fff; }
.btn--wa:hover { background:#1da851; color:#fff; transform: translateY(-2px); }
.btn--sm { padding: .55rem .9rem; font-size: var(--step--1); }
.btn--block { width: 100%; }
.btn--lg { padding: 1rem 1.8rem; font-size: var(--step-1); }

/* ---------- 5. HEADER / NAV --------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100; height: var(--nav-h);
  background: rgba(255,255,255,.82); backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s, background .25s;
}
.site-header.scrolled { box-shadow: var(--sh-2); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.nav__logo img { height: 34px; width: auto; }
.nav__links { display: flex; align-items: center; gap: .35rem; list-style: none; padding: 0; margin: 0; }
.nav__links a {
  color: var(--ink-700); font-weight: 500; font-size: .95rem; padding: .55rem .75rem;
  border-radius: var(--r-sm); transition: background .15s, color .15s; position: relative;
}
.nav__links a:hover,.nav__links a[aria-current="page"] { color: var(--navy-800); background: var(--ink-50); }
.nav__links a[aria-current="page"]::after {
  content:""; position:absolute; left:.75rem; right:.75rem; bottom:.28rem; height:2px;
  background: var(--sky-500); border-radius: 2px;
}
.nav__cta { display: flex; align-items: center; gap: .6rem; }
.nav__basket { position: relative; display:inline-flex; align-items:center; justify-content:center;
  width: 42px; height: 42px; border-radius: var(--r-sm); border:1.5px solid var(--ink-150); color: var(--ink-700); background:#fff; }
.nav__basket:hover { border-color: var(--sky-500); color: var(--sky-700); }
.nav__basket svg{width:20px;height:20px;}
.nav__basket-count {
  position:absolute; top:-7px; right:-7px; min-width: 20px; height: 20px; padding: 0 5px;
  background: var(--sky-600); color:#fff; border-radius: var(--r-pill); font-size:.7rem; font-weight:700;
  display:flex; align-items:center; justify-content:center; font-family: var(--font-mono);
  box-shadow: 0 0 0 2px #fff;
}
.nav__burger { display:none; width:44px; height:44px; border:1.5px solid var(--ink-150); border-radius: var(--r-sm); background:#fff; align-items:center; justify-content:center; }
.nav__burger svg { width: 22px; height: 22px; color: var(--ink-800); }
@media (max-width: 1180px){
  .nav__links, .nav__cta .btn--navy { display:none; }
  .nav__burger { display:flex; }
}
.nav__links a { padding-inline: .62rem; }
/* mobile drawer */
.mobile-nav { position: fixed; inset: var(--nav-h) 0 0 0; z-index: 99; background: var(--paper);
  transform: translateX(100%); transition: transform .3s var(--ease); overflow-y:auto; padding: 1.25rem; display:flex; flex-direction:column; gap:.3rem; }
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a { padding: .9rem 1rem; border-radius: var(--r-sm); font-family: var(--font-display); font-weight:600; color: var(--ink-800); font-size:1.1rem; border-bottom:1px solid var(--line); }
.mobile-nav a:hover{ background: var(--ink-50); }
.mobile-nav .btn { margin-top: .75rem; }

/* ---------- 6. HERO ------------------------------------------------------ */
.hero { position: relative; background: var(--navy-900); color:#fff; overflow:hidden; padding-block: clamp(4rem, 9vw, 8rem); }
.hero::before { /* technical grid */
  content:""; position:absolute; inset:0;
  background-image: linear-gradient(var(--molecule-line,rgba(255,255,255,.045)) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 46px 46px; mask-image: radial-gradient(120% 100% at 70% 0%, #000 30%, transparent 80%);
}
.hero::after { /* sky glow */
  content:""; position:absolute; top:-30%; right:-10%; width: 60vw; height: 60vw; border-radius:50%;
  background: radial-gradient(circle, rgba(56,189,248,.22), transparent 62%); filter: blur(10px); pointer-events:none;
}
.hero .wrap { position: relative; z-index: 2; }
.hero h1 { color:#fff; max-width: 18ch; }
.hero h1 .accent { color: var(--sky-400); }
.hero__sub { color: var(--ink-300); font-size: var(--step-1); max-width: 60ch; margin-top: var(--sp-5); line-height:1.55; }
.hero__cta { display:flex; flex-wrap:wrap; gap: .8rem; margin-top: var(--sp-6); }
.hero__stats { display:flex; flex-wrap:wrap; gap: clamp(1.5rem,4vw,3.5rem); margin-top: var(--sp-7); padding-top: var(--sp-6); border-top:1px solid rgba(255,255,255,.1); }
.hero__stat .n { font-family: var(--font-display); font-size: var(--step-3); font-weight:800; color:#fff; letter-spacing:-.03em; }
.hero__stat .l { font-size:.85rem; color: var(--ink-300); font-family: var(--font-mono); letter-spacing:.04em; text-transform:uppercase; }

/* Hero search */
.searchbar { display:flex; align-items:center; gap:.5rem; background:#fff; border-radius: var(--r-md); padding:.45rem .45rem .45rem 1.1rem;
  box-shadow: var(--sh-3); max-width: 640px; margin-top: var(--sp-6); }
.searchbar svg { width:20px; height:20px; color: var(--ink-400); flex:none; }
.searchbar input { border:0; outline:0; flex:1; font-size: var(--step-0); color: var(--ink-800); background:transparent; padding:.5rem 0; font-family:var(--font-body); }
.searchbar input::placeholder{ color: var(--ink-400); }

/* ---------- 7. CARDS ----------------------------------------------------- */
.card { background:#fff; border:1px solid var(--line); border-radius: var(--r-lg); transition: transform .22s var(--ease), box-shadow .22s, border-color .2s; }
.card:hover { box-shadow: var(--sh-3); transform: translateY(-4px); border-color: var(--ink-150); }

/* Feature/category card */
.feature { padding: var(--sp-5); display:flex; flex-direction:column; gap:.6rem; height:100%; }
.feature__icon { width:48px; height:48px; border-radius: var(--r-md); display:flex; align-items:center; justify-content:center;
  background: var(--sky-050); color: var(--sky-700); margin-bottom:.4rem; }
.feature__icon svg { width:24px; height:24px; }
.feature h3 { font-size: var(--step-1); }
.feature p { font-size:.95rem; }
.feature .arrow-link { margin-top:auto; }

.arrow-link { display:inline-flex; align-items:center; gap:.4rem; font-family:var(--font-display); font-weight:600; font-size:.92rem; color: var(--sky-700); }
.arrow-link svg{ width:16px; height:16px; transition: transform .2s var(--ease);}
.arrow-link:hover svg{ transform: translateX(4px); }

/* Product card */
.pcard { display:flex; flex-direction:column; overflow:hidden; height:100%; }
.pcard__media { position:relative; aspect-ratio: 4/3; background: linear-gradient(135deg,var(--ink-50),var(--base-2));
  display:flex; align-items:center; justify-content:center; overflow:hidden; border-bottom:1px solid var(--line); }
.pcard__media .ph { font-family:var(--font-mono); color: var(--ink-300); font-size:.8rem; letter-spacing:.1em; text-transform:uppercase;}
.pcard__media img { width:100%; height:100%; object-fit:cover; }
.pcard__brandtag { position:absolute; top:.7rem; left:.7rem; }
.pcard__body { padding: 1.1rem 1.15rem 1.25rem; display:flex; flex-direction:column; gap:.5rem; flex:1; }
.pcard__cat { font-family:var(--font-mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color: var(--ink-400); }
.pcard h3 { font-size:1.12rem; line-height:1.2; }
.pcard h3 a{ color: var(--ink-900); }
.pcard h3 a:hover{ color: var(--sky-700); }
.pcard__desc { font-size:.9rem; color: var(--ink-500); flex:1; }
.pcard__tags { display:flex; flex-wrap:wrap; gap:.35rem; }
.pcard__foot { display:flex; gap:.5rem; margin-top:.6rem; }
.pcard__foot .btn{ flex:1; }
.pcard__meta { display:flex; gap:1rem; font-family:var(--font-mono); font-size:.74rem; color:var(--ink-400); padding-top:.4rem; border-top:1px dashed var(--line); }
.pcard__meta b{ color: var(--ink-700); font-weight:600; }

/* ---------- 8. BADGES / TAGS / CHIPS ------------------------------------ */
.badge { display:inline-flex; align-items:center; gap:.35rem; font-family:var(--font-mono); font-size:.7rem; font-weight:600;
  letter-spacing:.04em; text-transform:uppercase; padding:.28rem .55rem; border-radius: var(--r-xs); line-height:1; }
.badge--seed { background: var(--navy-800); color:#fff; }
.badge--izonil { background:#0d4f7c; color:#fff; }
.badge--velosit { background:#1a1a1a; color:#fff; }
.badge--tensyl { background: var(--tensyl); color:#fff; }
.badge--adcos { background: var(--ink-600); color:#fff; }
.badge--sky { background: var(--sky-050); color: var(--sky-700); }
.badge--soft { background: var(--ink-50); color: var(--ink-600); border:1px solid var(--line); }
.tag { display:inline-flex; align-items:center; font-size:.74rem; padding:.25rem .6rem; border-radius: var(--r-pill);
  background: var(--ink-50); color: var(--ink-600); border:1px solid var(--line); font-weight:500; }
.tag--accent { background: var(--sky-050); color: var(--sky-700); border-color: #bfe9fd; }

/* chip filter */
.chips { display:flex; flex-wrap:wrap; gap:.5rem; }
.chip { font-family: var(--font-display); font-weight:600; font-size:.85rem; padding:.5rem .95rem; border-radius: var(--r-pill);
  border:1.5px solid var(--ink-150); background:#fff; color: var(--ink-600); transition: all .15s; cursor:pointer; }
.chip:hover { border-color: var(--sky-500); color: var(--sky-700); }
.chip.active { background: var(--navy-800); border-color: var(--navy-800); color:#fff; }

/* ---------- 9. TECHNICAL TABLE ------------------------------------------ */
.spec-table { width:100%; border-collapse: collapse; font-size:.92rem; }
.spec-table th, .spec-table td { text-align:left; padding:.7rem .9rem; border-bottom:1px solid var(--line); vertical-align:top; }
.spec-table th { font-family: var(--font-mono); font-size:.78rem; letter-spacing:.03em; text-transform:uppercase; color: var(--ink-400); font-weight:500; width:42%; }
.spec-table td { color: var(--ink-800); font-weight:500; }
.spec-table tr:last-child th,.spec-table tr:last-child td { border-bottom:0; }
.spec-table--striped tr:nth-child(even){ background: var(--ink-50); }

/* ---------- 10. FORMS ---------------------------------------------------- */
.field { display:flex; flex-direction:column; gap:.4rem; margin-bottom: var(--sp-4); }
.field label { font-family: var(--font-display); font-weight:600; font-size:.88rem; color: var(--ink-700); }
.field .hint{ font-size:.78rem; color: var(--ink-400); }
.input, .select, .textarea {
  width:100%; padding:.75rem .9rem; border:1.5px solid var(--ink-150); border-radius: var(--r-sm);
  font-family: var(--font-body); font-size: var(--step-0); color: var(--ink-800); background:#fff; transition: border-color .15s, box-shadow .15s;
}
.input:focus,.select:focus,.textarea:focus { outline:0; border-color: var(--sky-500); box-shadow: 0 0 0 3px var(--sky-glow); }
.textarea { resize: vertical; min-height: 110px; }
.filedrop { border:1.5px dashed var(--ink-200); border-radius: var(--r-md); padding: 1.5rem; text-align:center; color: var(--ink-400); background: var(--ink-50); cursor:pointer; transition: border-color .15s, background .15s; }
.filedrop:hover{ border-color: var(--sky-500); background: var(--sky-050); }

/* ---------- 11. FOOTER --------------------------------------------------- */
.site-footer { background: var(--navy-900); color: var(--ink-300); padding-block: var(--sp-8) var(--sp-6); position:relative; }
.site-footer::before{ content:""; position:absolute; inset:0; background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px); background-size:46px 46px; mask-image:radial-gradient(100% 80% at 20% 0,#000,transparent 75%); }
.site-footer .wrap{ position:relative; z-index:1; }
.footer-grid { display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--sp-6); padding-bottom: var(--sp-6); border-bottom:1px solid rgba(255,255,255,.1); }
@media (max-width:880px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer-grid{ grid-template-columns:1fr; } }
.footer-brand img{ height:36px; margin-bottom:1rem; }
.footer-brand p{ color: var(--ink-400); font-size:.9rem; max-width:34ch; }
.footer-col h5{ color:#fff; font-family:var(--font-display); font-size:.8rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom:1rem; }
.footer-col ul{ list-style:none; padding:0; display:flex; flex-direction:column; gap:.6rem; }
.footer-col a{ color: var(--ink-300); font-size:.92rem; }
.footer-col a:hover{ color: var(--sky-400); }
.footer-bottom{ display:flex; flex-wrap:wrap; gap:1rem; justify-content:space-between; align-items:center; padding-top: var(--sp-5); font-size:.82rem; color: var(--ink-400); }
.footer-bottom .legal{ display:flex; gap:1.2rem; flex-wrap:wrap; }

/* ---------- 12. WHATSAPP FAB -------------------------------------------- */
.wa-fab { position: fixed; right: 22px; bottom: 22px; z-index: 90; display:flex; align-items:center; gap:.6rem;
  background:#25D366; color:#fff; padding:.85rem 1.1rem; border-radius: var(--r-pill); box-shadow: 0 10px 30px rgba(37,211,102,.4);
  font-family: var(--font-display); font-weight:700; font-size:.9rem; transition: transform .2s var(--ease); }
.wa-fab:hover{ transform: translateY(-3px) scale(1.02); color:#fff; }
.wa-fab svg{ width:22px; height:22px; }
@media (max-width:560px){ .wa-fab span{ display:none; } .wa-fab{ padding:1rem; } }

/* ---------- 13. MISC / UTILITY ------------------------------------------ */
.breadcrumb { display:flex; gap:.45rem; align-items:center; font-size:.84rem; color: var(--ink-400); font-family: var(--font-mono); padding-block: 1.1rem; flex-wrap:wrap; }
.breadcrumb a{ color: var(--ink-500); } .breadcrumb a:hover{ color: var(--sky-700); }
.breadcrumb span.sep{ color: var(--ink-300); }

.divider-note { font-family: var(--font-mono); font-size:.78rem; color: var(--ink-400); letter-spacing:.04em; }
.kicker-row{ display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap; margin-bottom: var(--sp-5); }

.pill-row{ display:flex; flex-wrap:wrap; gap:.5rem; }
.hr { height:1px; background: var(--line); border:0; margin-block: var(--sp-6); }

.logo-strip { display:flex; flex-wrap:wrap; align-items:center; gap: clamp(1.5rem,5vw,3.5rem); }
.logo-strip .brandname { font-family: var(--font-display); font-weight:800; font-size:1.4rem; color: var(--ink-300); letter-spacing:-.02em; }

.note-card { background: var(--sky-050); border:1px solid #bfe9fd; border-left:4px solid var(--sky-500); border-radius: var(--r-md); padding: 1.1rem 1.25rem; font-size:.92rem; color: var(--ink-700); }
.callout { background: var(--navy-800); color:#fff; border-radius: var(--r-lg); padding: clamp(1.5rem,4vw,3rem); position:relative; overflow:hidden; }
.callout::after{ content:""; position:absolute; right:-60px; top:-60px; width:240px; height:240px; border-radius:50%; background: radial-gradient(circle,var(--sky-glow),transparent 65%); }
.callout h2,.callout h3{ color:#fff; }
.callout p{ color: var(--ink-200); }

/* steps */
.steps{ counter-reset: s; display:grid; gap: var(--sp-4); }
.step{ display:flex; gap:1rem; align-items:flex-start; }
.step__n{ flex:none; width:38px; height:38px; border-radius:var(--r-md); background:var(--navy-800); color:#fff; display:flex; align-items:center; justify-content:center; font-family:var(--font-mono); font-weight:700; }
.step h4{ font-size:1.05rem; margin-bottom:.2rem; }
.step p{ font-size:.92rem; }

/* anim on scroll */
.reveal { opacity:0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ .reveal{opacity:1; transform:none; transition:none;} html{scroll-behavior:auto;} }

/* empty state */
.empty { text-align:center; padding: var(--sp-8) var(--sp-4); color: var(--ink-400); }
.empty svg{ width:48px; height:48px; margin:0 auto var(--sp-3); color: var(--ink-200); }

/* toast */
.toast { position: fixed; bottom: 24px; left:50%; transform: translateX(-50%) translateY(20px); z-index: 200;
  background: var(--ink-900); color:#fff; padding:.85rem 1.3rem; border-radius: var(--r-pill); box-shadow: var(--sh-3);
  font-size:.9rem; font-weight:500; opacity:0; pointer-events:none; transition: opacity .25s, transform .25s; display:flex; align-items:center; gap:.5rem; }
.toast.show { opacity:1; transform: translateX(-50%) translateY(0); }
.toast svg{ width:18px; height:18px; color: var(--sky-400); }