/* ═══════════════════════════════════════════════════════
   main.css — базовые стили: навигация, footer, типографика
   Палитра: тёмно-синий #0a0f1e | голубой #00d4ff | фиолетовый #a855f7
   ═══════════════════════════════════════════════════════ */

/* ─── RESET & BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-dark: #0a0f1e;
  --bg-dark2: #0d1b2a;
  --accent: #00d4ff;
  --accent2: #a855f7;
  --gradient: linear-gradient(135deg, #00d4ff 0%, #a855f7 100%);
  --gradient-rev: linear-gradient(135deg, #a855f7 0%, #00d4ff 100%);
  --bg-light: #f8faff;
  --text-dark: #0f172a;
  --text-muted: #64748b;
  --white: #ffffff;
  --card-border: #e2e8f0;
  --nav-height: 68px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.14);
  --transition: 0.2s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--white);
  overflow-x: hidden;
}

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4 { font-weight: 800; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 700; }
p { color: var(--text-muted); line-height: 1.7; }
a { text-decoration: none; color: inherit; }

/* ─── NAVIGATION ─── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 24px;
  transition: background var(--transition), box-shadow var(--transition);
}

.site-nav.scrolled {
  background: rgba(10, 15, 30, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08);
}

.site-nav.light {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}

.site-nav.light .nav-link { color: var(--text-dark); }
.site-nav.light .nav-brand { color: var(--text-dark); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.nav-brand .brand-icon {
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-link {
  color: rgba(255,255,255,0.82);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,0.10);
}

.nav-cta {
  background: var(--gradient);
  color: var(--white) !important;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 0.875rem;
  white-space: nowrap;
  transition: opacity var(--transition), transform var(--transition);
}

.nav-cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  background: rgba(10, 15, 30, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 20px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-mobile.open { display: flex; }

.nav-mobile .nav-link {
  padding: 14px 16px;
  font-size: 1rem;
  border-radius: var(--radius-sm);
}

.nav-mobile .nav-cta {
  margin-top: 12px;
  text-align: center;
  display: block;
}

/* ─── SECTIONS ─── */
.section {
  padding: 80px 24px;
}

.section-light {
  background: var(--bg-light);
}

.section-dark {
  background: var(--bg-dark);
  color: var(--white);
}

.section-dark p { color: rgba(255,255,255,0.7); }

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 48px;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  font-family: var(--font);
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.4);
  opacity: 0.92;
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline-dark {
  background: transparent;
  color: var(--text-dark);
  border: 2px solid var(--card-border);
}

.btn-outline-dark:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.8125rem;
}

/* ─── CARDS ─── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.card-grid-2 {
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
}

.card {
  background: var(--white);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

/* ─── FADE IN ANIMATION ─── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── BADGE ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(0, 212, 255, 0.12);
  color: var(--accent);
  border: 1px solid rgba(0, 212, 255, 0.3);
}

/* ─── STATS STRIP ─── */
.stats-strip {
  background: var(--gradient);
  padding: 40px 24px;
}

.stats-grid {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  color: var(--white);
}

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1;
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.88;
  margin-top: 4px;
}

/* ─── FOOTER ─── */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 48px 24px 32px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.footer-slogan {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--accent); }

.footer-bottom {
  max-width: 1200px;
  margin: 24px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-tag {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
}

/* ─── PAGE HERO (inner pages) ─── */
.page-hero {
  padding: calc(var(--nav-height) + 60px) 24px 60px;
  background: var(--bg-dark);
  color: var(--white);
}

.page-hero p {
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  font-size: 1.1rem;
  margin-top: 12px;
}

/* ─── FILTER BAR ─── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 50px;
  border: 2px solid var(--card-border);
  background: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
  font-family: var(--font);
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 212, 255, 0.06);
}

/* ─── SERVICE CARD ─── */
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card-top {
  padding: 24px 24px 20px;
  border-bottom: 1px solid var(--card-border);
  position: relative;
}

.service-emoji {
  font-size: 2.2rem;
  margin-bottom: 12px;
  display: block;
}

.service-price-from {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-muted);
}

.service-price-from strong {
  display: block;
  font-size: 1.1rem;
  color: var(--text-dark);
}

.service-card-features {
  padding: 20px 24px;
  flex: 1;
}

.service-card-features ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-card-features li {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.service-card-features li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.service-card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--card-border);
  display: flex;
  gap: 10px;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--bg-light);
  color: var(--text-muted);
}

/* ─── CASE CARD ─── */
.case-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.case-more {
  margin-top: auto;
  padding-top: 4px;
}

.case-more-link {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--case-color, var(--accent));
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.case-more-link:hover {
  border-color: var(--case-color, var(--accent));
}

.case-industry {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.case-metric {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.case-metric-number {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.case-metric-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding-bottom: 4px;
}

.case-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ─── CTA SECTION ─── */
.cta-section {
  background: var(--bg-dark2);
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(0,212,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section h2 { color: var(--white); margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.65); margin-bottom: 32px; font-size: 1.1rem; }

/* ─── ACCORDION ─── */
.accordion { display: flex; flex-direction: column; gap: 12px; }

.accordion-item {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.accordion-question {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  font-size: 0.9375rem;
  font-weight: 700;
  background: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--text-dark);
  font-family: var(--font);
  transition: background var(--transition);
}

.accordion-question:hover { background: var(--bg-light); }

.accordion-arrow {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.accordion-item.open .accordion-arrow { transform: rotate(180deg); }

.accordion-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.accordion-item.open .accordion-answer { max-height: 300px; }

.accordion-answer-inner {
  padding: 0 20px 18px;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ─── STEP CARD ─── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  position: relative;
}

.step-card {
  text-align: center;
  padding: 36px 24px;
}

.step-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.1);
  border: 2px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
}

.step-num {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

/* ─── INDUSTRY CAROUSEL ─── */
.carousel-wrap {
  overflow: hidden;
  position: relative;
}

.carousel-track {
  display: flex;
  gap: 20px;
  animation: carousel-scroll 28s linear infinite;
  width: max-content;
}

.carousel-wrap:hover .carousel-track { animation-play-state: paused; }

@keyframes carousel-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.industry-card {
  flex-shrink: 0;
  background: var(--white);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  text-align: center;
  min-width: 180px;
  transition: box-shadow var(--transition);
}

.industry-card:hover { box-shadow: var(--shadow); }

.industry-icon { font-size: 2rem; margin-bottom: 10px; display: block; }
.industry-name { font-size: 0.875rem; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.industry-example { font-size: 0.75rem; color: var(--text-muted); }

/* ─── TECH STACK ─── */
.stack-layer {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.stack-layer-label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 12px;
}

.stack-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-item {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
}

/* ─── CONTACT METHODS ─── */
.contact-methods {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.contact-method {
  background: var(--white);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.contact-method:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.contact-method-icon { font-size: 2.5rem; }
.contact-method h3 { font-size: 1rem; font-weight: 700; }
.contact-method p { font-size: 0.875rem; }

/* ─── FORM ─── */
.contact-form {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 36px;
  max-width: 600px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--card-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-family: var(--font);
  color: var(--text-dark);
  background: var(--white);
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

/* ─── HERO SVG BG ─── */
.hero-svg-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --nav-height: 60px; }

  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .section { padding: 60px 20px; }

  .card-grid-2 { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }

  .stats-grid { gap: 32px; }

  .steps-grid { grid-template-columns: 1fr; }

  .contact-form { padding: 24px; }

  .stat-number { font-size: 2.2rem; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  .btn { padding: 12px 22px; font-size: 0.875rem; }
  .footer-links { grid-template-columns: 1fr; }
}

/* ─── PRINT: hide nav/footer for price sheets ─── */
@media print {
  .site-nav, .site-footer, .nav-mobile { display: none !important; }
  body { padding-top: 0 !important; }
}

/* ═══════════════════════════════════════════════════════
   CHAT WIDGET — floating AI consultant
   ═══════════════════════════════════════════════════════ */

/* ── Toggle Button ── */
#chat-widget-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #00d4ff 0%, #a855f7 100%);
  box-shadow: 0 4px 24px rgba(0, 212, 255, 0.4);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
#chat-widget-btn:hover { transform: scale(1.1); box-shadow: 0 6px 32px rgba(168, 85, 247, 0.5); }
#chat-widget-btn.active { transform: scale(0.95); }
.chat-btn-icon { line-height: 1; }

/* ── Panel ── */
#chat-widget-panel {
  position: fixed;
  bottom: 100px;
  right: 28px;
  width: 360px;
  max-width: calc(100vw - 40px);
  height: 520px;
  max-height: calc(100vh - 140px);
  background: #0d1b2a;
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  z-index: 9999;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
#chat-widget-panel.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* ── Header ── */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.12) 0%, rgba(168, 85, 247, 0.12) 100%);
  border-bottom: 1px solid rgba(0, 212, 255, 0.15);
  flex-shrink: 0;
}
.chat-header-info { display: flex; flex-direction: column; gap: 2px; }
.chat-header-title { font-size: 0.95rem; font-weight: 700; color: #fff; }
.chat-status { display: flex; align-items: center; gap: 6px; font-size: 0.75rem; color: rgba(255,255,255,0.6); }
.chat-status-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #22c55e;
  box-shadow: 0 0 6px #22c55e;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.chat-close-btn {
  background: none; border: none; cursor: pointer; font-size: 1.5rem;
  color: rgba(255,255,255,0.5); line-height: 1; padding: 4px;
  transition: color 0.15s;
}
.chat-close-btn:hover { color: #fff; }

/* ── Messages ── */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: rgba(0,212,255,0.3) transparent;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(0,212,255,0.3); border-radius: 4px; }

.chat-msg {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
  word-wrap: break-word;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.chat-msg.visible { opacity: 1; transform: translateY(0); }

.chat-msg--user {
  align-self: flex-end;
  background: linear-gradient(135deg, #00d4ff 0%, #a855f7 100%);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-msg--assistant {
  align-self: flex-start;
  background: rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.1);
  border-bottom-left-radius: 4px;
}

/* ── Typing indicator ── */
.chat-typing {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 12px 16px;
}
.chat-typing span {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(0, 212, 255, 0.7);
  animation: typing-bounce 1.2s infinite;
}
.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ── Input area ── */
.chat-input-area {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 14px;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  flex-shrink: 0;
}

.chat-attach-btn {
  flex-shrink: 0;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1.1rem;
  color: rgba(255,255,255,0.5);
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.chat-attach-btn:hover { color: #00d4ff; background: rgba(0,212,255,0.1); }

#chat-text-input {
  flex: 1;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: #fff;
  font-size: 0.88rem;
  padding: 9px 12px;
  resize: none;
  outline: none;
  font-family: inherit;
  line-height: 1.5;
  min-height: 36px;
  max-height: 120px;
  transition: border-color 0.15s;
}
#chat-text-input::placeholder { color: rgba(255,255,255,0.3); }
#chat-text-input:focus { border-color: rgba(0,212,255,0.4); }

.chat-voice-btn, .chat-send-btn {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border: none; border-radius: 8px;
  cursor: pointer; font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, transform 0.1s;
}
.chat-voice-btn {
  background: rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.6);
}
.chat-voice-btn:hover { background: rgba(0,212,255,0.15); color: #00d4ff; }
.chat-voice-btn.listening { background: rgba(239,68,68,0.2); color: #ef4444; animation: pulse-mic 1s infinite; }
@keyframes pulse-mic { 0%,100%{transform:scale(1)} 50%{transform:scale(1.12)} }

.chat-send-btn {
  background: linear-gradient(135deg, #00d4ff 0%, #a855f7 100%);
  color: #fff;
}
.chat-send-btn:hover { transform: scale(1.07); }
.chat-send-btn:active { transform: scale(0.95); }

/* ── Mobile ── */
@media (max-width: 480px) {
  #chat-widget-panel { right: 12px; bottom: 88px; width: calc(100vw - 24px); height: 70vh; }
  #chat-widget-btn { bottom: 20px; right: 16px; width: 54px; height: 54px; }
}

/* ── Hide widget on print ── */
@media print {
  #chat-widget-btn, #chat-widget-panel { display: none !important; }
}