/* ============================================================
   PtCure Silicone Additives — B2B Static Site
   Theme: clean industrial / light / navy + teal + orange CTA
   ============================================================ */

:root {
  --navy: #0f2b46;
  --navy-2: #16395e;
  --primary: #14538c;
  --primary-dark: #0e3f6c;
  --teal: #0d9488;
  --teal-dark: #0b7a70;
  --cta: #e8630a;
  --cta-dark: #c65308;
  --bg: #f6f8fb;
  --bg-2: #eef3f9;
  --line: #e3e9f1;
  --text: #26333f;
  --muted: #5b6b7a;
  --white: #fff;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(15, 43, 70, .07);
  --shadow-lg: 0 10px 30px rgba(15, 43, 70, .12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { color: var(--navy); line-height: 1.25; font-weight: 700; }
h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; }
p { color: var(--text); }
.lead { font-size: 1.12rem; color: var(--muted); }
.small { font-size: .85rem; color: var(--muted); }

.section { padding: 72px 0; }
.section.bg { background: var(--bg); }
.section.tight { padding: 48px 0; }

.section-head { max-width: 760px; margin: 0 auto 44px; text-align: center; }
.section-head h2 { margin-bottom: 12px; }
.section-head p { color: var(--muted); }
.section-head.left { text-align: left; margin-left: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 6px;
  font-weight: 600;
  font-size: .95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background .18s, color .18s, border-color .18s;
  text-align: center;
}
.btn-cta { background: var(--cta); color: #fff; }
.btn-cta:hover { background: var(--cta-dark); color: #fff; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-ghost { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-ghost:hover { background: var(--primary); color: #fff; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: var(--bg-2); color: var(--navy); }
.btn-block { display: block; width: 100%; }
.btn + .btn { margin-left: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 70px; }

.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand svg { width: 38px; height: 38px; }
.brand-name { font-size: 1.3rem; font-weight: 800; color: var(--navy); line-height: 1.1; letter-spacing: .2px; }
.brand-sub { display: block; font-size: .62rem; font-weight: 600; color: var(--teal); text-transform: uppercase; letter-spacing: 1.6px; }

.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav > a, .nav-drop > a {
  padding: 8px 12px;
  color: var(--navy-2);
  font-weight: 600;
  font-size: .93rem;
  border-radius: 6px;
  white-space: nowrap;
}
.main-nav > a:hover, .nav-drop > a:hover { background: var(--bg-2); color: var(--primary); }

.nav-drop { position: relative; }
.nav-drop-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  min-width: 260px;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  padding: 8px;
  z-index: 120;
}
.nav-drop:hover .nav-drop-menu, .nav-drop:focus-within .nav-drop-menu { display: block; }
.nav-drop-menu a {
  display: block;
  padding: 9px 14px;
  color: var(--text);
  font-size: .9rem;
  border-radius: 6px;
}
.nav-drop-menu a:hover { background: var(--bg-2); color: var(--primary); }
.nav-drop-menu .menu-note { padding: 9px 14px 4px; font-size: .72rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }

/* ---------- Language switch ---------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: .82rem;
  font-weight: 600;
  flex-shrink: 0;
  border-left: 1px solid var(--line);
  padding-left: 16px;
  margin-left: 6px;
}
.lang-switch a { color: var(--muted); }
.lang-switch a:hover { color: var(--primary); }
.lang-switch .active { color: var(--primary); pointer-events: none; }
.lang-switch .sep { color: var(--line); }

/* ---------- Language dropdown (multi-language) ---------- */
.lang-drop { position: relative; flex-shrink: 0; }
.lang-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 11px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--navy-2);
  cursor: pointer;
  font-family: inherit;
}
.lang-btn:hover { border-color: var(--primary); color: var(--primary); }
.lang-btn svg { width: 15px; height: 15px; stroke: currentColor; }
.lang-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  padding: 8px;
  min-width: 158px;
  z-index: 130;
}
.lang-drop:hover .lang-menu, .lang-drop:focus-within .lang-menu { display: block; }
.lang-menu a { display: block; padding: 8px 12px; border-radius: 6px; color: var(--text); font-size: .88rem; white-space: nowrap; }
.lang-menu a:hover { background: var(--bg-2); color: var(--primary); }
.lang-menu a.active { color: var(--primary); font-weight: 700; background: var(--bg-2); }

.header-cta { flex-shrink: 0; padding: 10px 20px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.nav-toggle svg { width: 26px; height: 26px; stroke: var(--navy); }

/* ---------- Hero ---------- */
.hero {
  background:
    linear-gradient(160deg, rgba(15,43,70,.96) 0%, rgba(20,83,140,.92) 55%, rgba(13,148,136,.85) 130%);
  color: #fff;
  padding: 96px 0 84px;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero .lead { color: rgba(255,255,255,.85); max-width: 560px; margin-bottom: 30px; }
.hero .btn + .btn { margin-left: 0; margin-top: 12px; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.28);
  color: #eaf4f2;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .4px;
  margin-bottom: 22px;
}
.hero-visual { display: flex; justify-content: center; }
.hero-visual svg { width: 100%; max-width: 430px; height: auto; }

.hero-strip {
  background: var(--navy);
  color: rgba(255,255,255,.75);
  padding: 14px 0;
  font-size: .88rem;
}
.hero-strip .container { display: flex; flex-wrap: wrap; gap: 10px 34px; justify-content: center; }
.hero-strip span { display: inline-flex; align-items: center; gap: 8px; }
.hero-strip svg { width: 16px; height: 16px; stroke: var(--teal); flex-shrink: 0; }

/* ---------- Page banner (inner pages) ---------- */
.page-banner {
  background: linear-gradient(140deg, var(--navy) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 56px 0 48px;
}
.page-banner h1 { color: #fff; margin-bottom: 10px; }
.page-banner p { color: rgba(255,255,255,.8); max-width: 720px; }
.breadcrumb { font-size: .82rem; color: rgba(255,255,255,.55); margin-bottom: 14px; }
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: #fff; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s;
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: .94rem; flex-grow: 1; }
.card .card-links { margin-top: 16px; font-size: .88rem; font-weight: 600; }
.card-icon { margin-bottom: 16px; }
.card-icon svg { width: 40px; height: 40px; }

.card-badge {
  display: inline-block;
  background: var(--bg-2);
  color: var(--primary);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .6px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 5px;
  margin-bottom: 14px;
  align-self: flex-start;
}
.card-badge.teal { background: #e6f5f3; color: var(--teal-dark); }

/* ---------- Feature blocks ---------- */
.feature { display: flex; gap: 16px; align-items: flex-start; }
.feature svg { width: 34px; height: 34px; flex-shrink: 0; margin-top: 2px; }
.feature h3 { font-size: 1.05rem; margin-bottom: 6px; }
.feature p { color: var(--muted); font-size: .93rem; }

.checklist { list-style: none; }
.checklist li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 12px;
  color: var(--text);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #e6f5f3 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230b7a70' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center / 11px no-repeat;
}

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table.spec { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 560px; }
table.spec th, table.spec td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
table.spec th { background: var(--bg-2); color: var(--navy); font-weight: 700; white-space: nowrap; }
table.spec tr:last-child td { border-bottom: none; }
table.spec td:first-child { color: var(--navy); font-weight: 600; white-space: nowrap; }
.table-note { padding: 10px 16px; background: #fdf6ec; border-left: 3px solid var(--cta); font-size: .85rem; color: #7a5218; border-radius: 0 6px 6px 0; margin-top: 14px; }

/* ---------- Image & video placeholders ---------- */
.img-slot {
  border: 2px dashed #b8c6d6;
  background: repeating-linear-gradient(45deg, #f8fafc, #f8fafc 12px, #f1f5fa 12px, #f1f5fa 24px);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #7c8ea1;
  min-height: 200px;
  text-align: center;
  padding: 20px;
}
.img-slot svg { width: 36px; height: 36px; stroke: #9fb2c4; }
.img-slot .slot-title { font-weight: 600; font-size: .92rem; color: #64778c; }
.img-slot .slot-meta { font-size: .76rem; letter-spacing: .4px; }

.video-slot {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(145deg, var(--navy) 0%, var(--navy-2) 100%);
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: rgba(255,255,255,.85);
  border: 1px solid var(--navy-2);
}
.video-slot .play-circle {
  width: 62px; height: 62px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  border: 2px solid rgba(255,255,255,.45);
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-slot .play-circle svg { width: 22px; height: 22px; fill: #fff; margin-left: 3px; }
.video-slot .vs-title { font-weight: 700; font-size: .98rem; color: #fff; }
.video-slot .vs-meta { font-size: .76rem; letter-spacing: 1px; text-transform: uppercase; color: rgba(255,255,255,.55); }
.video-slot .vs-note {
  position: absolute;
  top: 12px; right: 12px;
  background: rgba(232, 99, 10, .9);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .8px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}

/* ---------- Steps (process) ---------- */
.steps { counter-reset: step; list-style: none; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 0 0 26px 52px;
  border-left: 2px solid var(--line);
  margin-left: 16px;
}
.steps li:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps li::before {
  content: counter(step);
  position: absolute;
  left: -17px; top: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps li h4 { color: var(--navy); margin-bottom: 4px; font-size: 1rem; }
.steps li p { color: var(--muted); font-size: .92rem; }

/* ---------- Warning / note boxes ---------- */
.note { border-radius: 8px; padding: 18px 20px; font-size: .92rem; margin: 22px 0; }
.note strong { display: block; margin-bottom: 6px; }
.note-warn { background: #fdf1ef; border-left: 4px solid #c0392b; color: #6b2418; }
.note-info { background: #eaf2fb; border-left: 4px solid var(--primary); color: #1d3c5c; }
.note-teal { background: #e6f5f3; border-left: 4px solid var(--teal); color: #0b5a53; }

/* ---------- Split layout ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split-text h2 { margin-bottom: 16px; }
.split-text p { color: var(--muted); margin-bottom: 14px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy) 0%, var(--primary) 100%);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}
.cta-band h2 { color: #fff; margin-bottom: 12px; }
.cta-band p { color: rgba(255,255,255,.8); max-width: 640px; margin: 0 auto 28px; }
.cta-band .btn + .btn { margin-left: 0; margin-top: 12px; }

/* ---------- FAQ accordion ---------- */
.faq-item { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 12px; background: #fff; overflow: hidden; }
.faq-q {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 18px 22px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-q .chev { flex-shrink: 0; transition: transform .2s; }
.faq-q .chev svg { width: 18px; height: 18px; stroke: var(--primary); }
.faq-item.open .faq-q .chev { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-inner { padding: 0 22px 18px; color: var(--muted); font-size: .94rem; }
.faq-item.open .faq-a { max-height: 600px; }

/* ---------- Forms ---------- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-weight: 600; font-size: .9rem; color: var(--navy); }
.form-field .req { color: var(--cta); }
.form-field input, .form-field select, .form-field textarea {
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  font-size: .95rem;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color .15s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-field textarea { min-height: 110px; resize: vertical; }
.form-hint { font-size: .78rem; color: var(--muted); }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* ---------- Contact info ---------- */
.info-tile { display: flex; gap: 14px; align-items: flex-start; padding: 18px 0; border-bottom: 1px solid var(--line); }
.info-tile:last-child { border-bottom: none; }
.info-tile svg { width: 26px; height: 26px; stroke: var(--teal); flex-shrink: 0; margin-top: 3px; }
.info-tile h4 { color: var(--navy); font-size: .95rem; margin-bottom: 2px; }
.info-tile p { color: var(--muted); font-size: .92rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,.72); padding: 56px 0 0; font-size: .9rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 40px; padding-bottom: 40px; }
.footer-grid h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: 1.2px; margin-bottom: 16px; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 9px; }
.footer-grid a { color: rgba(255,255,255,.72); }
.footer-grid a:hover { color: #fff; }
.footer-brand svg { width: 34px; height: 34px; margin-bottom: 12px; }
.footer-brand p { font-size: .85rem; max-width: 280px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 18px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  font-size: .8rem;
  color: rgba(255,255,255,.5);
}
.footer-bottom a { color: rgba(255,255,255,.6); }

/* ---------- Product page layout ---------- */
.product-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.product-hero .img-slot { min-height: 340px; }
.quick-facts { display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0; }
.fact {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: .84rem;
}
.fact b { display: block; color: var(--primary); font-size: 1.02rem; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .header-cta { display: none; }
  .lang-switch { margin-left: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .lang-switch { border-left: none; padding-left: 0; margin-left: 8px; }
  .main-nav {
    display: none;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 20px;
    gap: 2px;
  }
  .main-nav.open { display: flex; }
  .main-nav > a, .nav-drop > a { padding: 12px 8px; }
  .nav-drop-menu {
    display: block;
    position: static;
    box-shadow: none;
    border: none;
    padding: 0 0 0 18px;
    min-width: 0;
  }
  .hero-grid, .split, .product-hero, .two-col, .form-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .hero { padding: 64px 0; }
  .section { padding: 52px 0; }
  .btn + .btn { margin-left: 0; }
  .hero-actions { display: flex; flex-direction: column; align-items: stretch; }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-grid { gap: 14px; }
}

/* Reveal on scroll (subtle) */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ===== Blog ===== */
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: .85rem; color: #5b7186; margin-top: 14px; }
.post-meta .cat { background: rgba(13,148,136,.1); color: var(--teal); padding: 3px 11px; border-radius: 999px; font-weight: 600; font-size: .76rem; letter-spacing: .3px; }
.article-body { max-width: 800px; margin: 0 auto; font-size: 1.03rem; line-height: 1.78; color: #2b3d4e; }
.article-body h2 { font-size: 1.5rem; color: var(--navy); margin: 36px 0 12px; }
.article-body h3 { font-size: 1.18rem; color: var(--navy); margin: 28px 0 10px; }
.article-body p { margin: 15px 0; }
.article-body ul, .article-body ol { margin: 15px 0 15px 24px; }
.article-body li { margin: 7px 0; }
.article-body blockquote { border-left: 4px solid var(--teal); background: #f0faf9; padding: 13px 18px; margin: 20px 0; border-radius: 0 8px 8px 0; }
.article-body blockquote p { margin: 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: .93rem; }
.article-body th { background: var(--navy); color: #fff; text-align: left; padding: 10px 13px; }
.article-body td { border-bottom: 1px solid var(--line); padding: 9px 13px; }
.article-body img { max-width: 100%; border-radius: 10px; margin: 18px 0; }
.post-card .post-card-date { font-size: .8rem; color: #5b7186; display: block; margin-bottom: 6px; }
.post-card .cat { background: rgba(13,148,136,.1); color: var(--teal); padding: 2px 9px; border-radius: 999px; font-weight: 600; font-size: .74rem; }
.article-footer-nav { display: flex; justify-content: space-between; gap: 14px; margin-top: 44px; max-width: 800px; }
.rss-note { font-size: .85rem; color: #5b7186; }

/* ===== WhatsApp float button ===== */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 95;
  width: 64px; height: 64px; border-radius: 50%;
  background: #25d366; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 22px rgba(0,0,0,.28);
  transition: transform .18s ease, box-shadow .18s ease;
}
.wa-float:hover { transform: translateY(-3px) scale(1.06); box-shadow: 0 12px 30px rgba(0,0,0,.34); }
.wa-float svg { width: 34px; height: 34px; }
.wa-float::before {                      /* pulsing ring */
  content: ""; position: absolute; inset: -2px; border-radius: 50%;
  border: 3px solid #25d366; animation: wa-pulse 2.4s ease-out infinite; pointer-events: none;
}
.wa-float::after {                       /* hover label - text comes from the
                                            element's data-tip attribute so it
                                            can be localized per language */
  content: attr(data-tip); position: absolute; right: 78px; top: 50%; transform: translate(8px,-50%);
  white-space: nowrap; background: rgba(15,43,70,.94); color: #fff;
  padding: 9px 15px; border-radius: 8px; font-size: .85rem; font-weight: 600;
  opacity: 0; pointer-events: none; transition: opacity .18s ease, transform .18s ease;
}
.wa-float:hover::after { opacity: 1; transform: translate(0,-50%); }

@keyframes wa-pulse {
  0%   { transform: scale(1); opacity: .75; }
  70%  { transform: scale(1.55); opacity: 0; }
  100% { transform: scale(1.55); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .wa-float::before { animation: none; display: none; }
}
@media (max-width: 760px) {
  .wa-float { right: 15px; bottom: 22px; width: 56px; height: 56px; }
  .wa-float svg { width: 30px; height: 30px; }
  .wa-float::after { display: none; }
}

/* ===== Application images ===== */
.app-img { width: 100%; height: auto; display: block; border-radius: 12px; box-shadow: 0 10px 28px rgba(15,43,70,.12); }

/* ============================================================
   2026-10-02 UI polish pass — appended overrides ONLY.
   Nothing above this block was modified. No HTML/text changes,
   so build & audit scripts are unaffected; all four languages
   inherit this from the single stylesheet.
   Revert: restore style.css/main.js from
   .workbuddy/backup/ui_polish_2026-10-02/ (or delete this block).
   ============================================================ */

/* ---------- design tokens (refined) ---------- */
:root {
  --radius: 12px;
  --shadow: 0 1px 2px rgba(15, 43, 70, .05), 0 6px 18px rgba(15, 43, 70, .07);
  --shadow-lg: 0 2px 6px rgba(15, 43, 70, .06), 0 16px 40px rgba(15, 43, 70, .13);
  --ring: 0 0 0 3px rgba(13, 148, 136, .25);
}

::selection { background: rgba(13, 148, 136, .22); }

/* ---------- typography ---------- */
h1, h2, h3, h4 { letter-spacing: -.015em; text-wrap: balance; }
h1 { font-weight: 800; }
.lead { font-size: 1.15rem; line-height: 1.7; }

/* ---------- buttons ---------- */
.btn {
  border-radius: 8px;
  transition: background .18s, color .18s, border-color .18s,
              transform .18s, box-shadow .18s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn-cta {
  background: linear-gradient(135deg, #f97316 0%, var(--cta) 55%, var(--cta-dark) 100%);
  box-shadow: 0 6px 16px rgba(232, 99, 10, .28);
}
.btn-cta:hover {
  background: linear-gradient(135deg, #fb8b33 0%, #ef6d12 55%, #d45a09 100%);
  box-shadow: 0 10px 22px rgba(232, 99, 10, .34);
}
a:focus-visible, button:focus-visible { outline: none; box-shadow: var(--ring); }

/* ---------- header (shadow + slight shrink on scroll; class set by main.js) ---------- */
.site-header { background: rgba(255, 255, 255, .9); transition: box-shadow .25s ease, background .25s ease; }
.site-header.scrolled { box-shadow: 0 4px 20px rgba(15, 43, 70, .09); background: rgba(255, 255, 255, .97); }
.header-inner { transition: height .25s ease; }
@media (min-width: 1021px) {
  .site-header.scrolled .header-inner { height: 62px; }
}
@media (max-width: 860px) {
  .main-nav { top: 100%; }  /* was 70px; header height now varies with scroll */
}

/* ---------- hero (depth + faint grid, desktop-only padding bump) ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(720px 340px at 82% 6%, rgba(13, 148, 136, .38), transparent 65%),
    radial-gradient(560px 300px at 8% 96%, rgba(20, 83, 140, .5), transparent 70%),
    linear-gradient(160deg, #0c2440 0%, var(--navy) 38%, #17466f 68%, #0d6e66 128%);
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(720px 480px at 70% 30%, #000 30%, transparent 75%);
  mask-image: radial-gradient(720px 480px at 70% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 { letter-spacing: -.02em; }
.hero-badge {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(94, 234, 212, .4);
  color: #d9f7f1;
}
@media (min-width: 861px) {
  .hero { padding: 108px 0 96px; }
}
.hero-strip { background: linear-gradient(90deg, var(--navy) 0%, #123456 60%, #14464f 100%); }
.hero-strip span {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .1);
  padding: 6px 13px;
  border-radius: 999px;
}

/* ---------- page banner (same family as hero) ---------- */
.page-banner {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(560px 260px at 92% -10%, rgba(13, 148, 136, .35), transparent 70%),
    linear-gradient(140deg, var(--navy) 0%, var(--primary-dark) 100%);
}
.page-banner::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(600px 320px at 80% 20%, #000 25%, transparent 75%);
  mask-image: radial-gradient(600px 320px at 80% 20%, #000 25%, transparent 75%);
  pointer-events: none;
}
.page-banner .container { position: relative; z-index: 1; }

/* ---------- cards & icons (tinted icon chips, deeper hover) ---------- */
.card:hover { transform: translateY(-4px); border-color: rgba(13, 148, 136, .35); }
.card-icon svg,
.feature > svg {
  background: linear-gradient(145deg, #e6f5f3, #d3ede9);
  border-radius: 12px;
  padding: 9px;
  width: 48px;
  height: 48px;
}
.feature > svg { margin-top: 0; flex-shrink: 0; }

/* ---------- quick facts (teal accent edge) ---------- */
.fact {
  background: #f8fafc;
  border-left: 3px solid var(--teal);
  padding: 9px 14px;
}

/* ---------- spec tables (navy head, zebra, row hover) ---------- */
table.spec th {
  background: var(--navy);
  color: #fff;
  border-bottom: none;
  font-size: .86rem;
  letter-spacing: .4px;
  text-transform: uppercase;
}
table.spec tbody tr:nth-child(even) td { background: #f8fafc; }
table.spec tbody tr:hover td { background: #eef6fb; }
.table-wrap { box-shadow: var(--shadow); }

/* ---------- FAQ (accented open state) ---------- */
.faq-item { transition: border-color .18s, box-shadow .18s; }
.faq-item:hover { border-color: rgba(20, 83, 140, .4); }
.faq-item.open { border-color: rgba(13, 148, 136, .55); box-shadow: var(--shadow); }
.faq-q:hover { background: #f8fafc; }

/* ---------- forms (focus ring) ---------- */
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--teal);
  box-shadow: var(--ring);
}

/* ---------- contact tiles ---------- */
.info-tile svg { background: #e6f5f3; border-radius: 10px; padding: 7px; width: 40px; height: 40px; }

/* ---------- process steps (gradient numerals) ---------- */
.steps li::before {
  background: linear-gradient(145deg, var(--primary), var(--teal));
  box-shadow: 0 3px 8px rgba(20, 83, 140, .3);
}

/* ---------- notes ---------- */
.note { border-radius: 10px; }

/* ---------- CTA band (hero-family glow, desktop padding bump) ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(620px 300px at 14% 0%, rgba(13, 148, 136, .4), transparent 65%),
    linear-gradient(135deg, var(--navy) 0%, var(--primary) 100%);
}
.cta-band .container { position: relative; z-index: 1; }
@media (min-width: 861px) {
  .cta-band { padding: 76px 0; }
}

/* ---------- footer (teal top edge) ---------- */
.site-footer { box-shadow: inset 0 4px 0 var(--teal); }

/* ---------- video slots ---------- */
.video-slot { transition: transform .2s, box-shadow .2s; }
.video-slot:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.video-slot:hover .play-circle { background: rgba(232, 99, 10, .92); border-color: rgba(232, 99, 10, .92); }

/* ---------- anchors clear the sticky header ---------- */
[id] { scroll-margin-top: 92px; }

/* ---------- application images ---------- */
.app-img { border-radius: var(--radius); }

/* ---------- 2026-10-02 mobile fixes (pre-existing issues found during polish QA) ----------
   Inline grid styles on the home applications row (.grid-5, repeat(5,1fr)) and the
   contact/sample two-column layouts (.8fr 1.2fr) beat the responsive media queries,
   causing horizontal overflow and a cramped header on phones. */
@media (max-width: 1020px) {
  .grid.grid-5 { grid-template-columns: repeat(3, 1fr) !important; }
}
@media (max-width: 640px) {
  .grid.grid-5 { grid-template-columns: repeat(2, 1fr) !important; }
  .two-col { grid-template-columns: 1fr !important; }
}
@media (max-width: 560px) {
  .header-inner { gap: 12px; }
  .brand-name { font-size: 1.12rem; }
  .brand svg { width: 32px; height: 32px; }
  .lang-btn { padding: 5px 8px; font-size: .78rem; gap: 5px; }
}

/* ---------- 2026-10-02 hero redesign: stat cards + inline checks + section accents ----------
   Pairs with _hero_redesign_2026_10_02.py (index.html x4): abstract SVG replaced by a
   2x2 data-card grid, check claims moved into the dark hero (strip band removed). */
.hero h1 { font-size: clamp(2.05rem, 4.4vw, 3.3rem); line-height: 1.14; margin-bottom: 20px; }
.hero-hl { color: #5eead4; }
.hero-grid { gap: 48px; align-items: center; }
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat-card {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 14px;
  padding: 20px 22px;
  backdrop-filter: blur(4px);
  transition: transform .18s, background .18s, border-color .18s;
}
.stat-card:hover { transform: translateY(-3px); background: rgba(255, 255, 255, .1); border-color: rgba(94, 234, 212, .45); }
.stat-card b { display: block; font-size: 1.9rem; font-weight: 800; color: #5eead4; line-height: 1.1; letter-spacing: -.02em; margin-bottom: 6px; }
.stat-card span { display: block; color: rgba(255, 255, 255, .78); font-size: .86rem; line-height: 1.45; }
.hero-checks { display: flex; flex-wrap: wrap; gap: 10px 22px; list-style: none; margin: 26px 0 0; padding: 0; }
.hero-checks li { display: flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, .88); font-size: .92rem; font-weight: 600; }
.hero-checks li::before {
  content: "\2713";
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border-radius: 50%; flex-shrink: 0;
  background: rgba(13, 148, 136, .35); color: #5eead4;
  font-size: .72rem; font-weight: 800;
}
.section-head::before {
  content: "";
  display: block;
  width: 54px; height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--teal), #5eead4);
  margin: 0 auto 18px;
}
.section-head.left::before { margin: 0 0 18px; }