/* =====================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   OWNER: Change values here to rebrand the entire site
   ===================================================== */
:root {
  /* Brand colors matched to Wall Doctor TX logo */
  --color-navy:       #1c1c1c;   /* near-black from logo background */
  --color-navy-dark:  #111111;
  --color-navy-light: #2a2a2a;
  --color-orange:     #f5c318;   /* golden yellow from logo */
  --color-orange-hover: #e0b010;
  --color-white:      #ffffff;
  --color-gray-light: #f5f5f5;
  --color-gray-mid:   #e0e0e0;
  --color-gray-dark:  #8a96a3;
  --color-text:       #1c1c1c;
  --color-text-light: #5a5a5a;

  --font-primary: 'Inter', 'Segoe UI', Arial, sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-card:  0 2px 12px rgba(0, 0, 0, 0.10);
  --shadow-hover: 0 6px 24px rgba(0, 0, 0, 0.20);
  --shadow-nav:   0 2px 16px rgba(0, 0, 0, 0.25);

  --transition: 0.25s ease;

  --nav-height: 70px;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* =====================================================
   3. TYPOGRAPHY
   ===================================================== */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }

p {
  color: var(--color-text-light);
  line-height: 1.75;
}

/* =====================================================
   4. LAYOUT UTILITIES
   ===================================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-lg) 0;
}

.section-alt {
  background-color: var(--color-gray-light);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xs);
  color: var(--color-navy);
}

.section-subtitle {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
  color: var(--color-text-light);
}

/* =====================================================
   5. BUTTONS
   ===================================================== */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-primary);
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
  border: 2px solid transparent;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-orange);
  color: var(--color-navy-dark);   /* dark text on yellow for contrast */
  border-color: var(--color-orange);
  font-weight: 700;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--color-orange-hover);
  border-color: var(--color-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(245, 195, 24, 0.40);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--color-navy);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-outline-white:hover,
.btn-outline-white:focus {
  background-color: var(--color-white);
  color: var(--color-navy);
  transform: translateY(-2px);
}

/* =====================================================
   6. NAVIGATION
   ===================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-navy);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-nav);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-logo img {
  height: 48px;
  width: auto;
  display: block;
  /* remove black background from logo for nav */
  mix-blend-mode: normal;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  font-size: 0.9rem;
}

.nav-logo-text strong {
  color: var(--color-orange);
  font-size: 1rem;
  font-weight: 700;
}

.nav-logo-text span {
  color: rgba(255,255,255,0.7);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Nav dropdown (Services menu) */
.nav-dropdown {
  position: relative;
}
.nav-dropdown > a::after {
  content: ' ▾';
  font-size: 0.7rem;
  opacity: 0.7;
}
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-navy-dark);
  min-width: 240px;
  border-radius: var(--radius-md);
  padding: 0.5rem 0;
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  z-index: 200;
  border: 1px solid rgba(255,255,255,0.08);
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  display: block;
}
.nav-dropdown-menu a {
  display: block;
  padding: 0.55rem 1.25rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.78);
  transition: background-color var(--transition), color var(--transition);
  white-space: nowrap;
}
.nav-dropdown-menu a::after { display: none; }
.nav-dropdown-menu a:hover {
  background-color: rgba(245,195,24,0.12);
  color: var(--color-orange);
}
.nav-dropdown-menu .dropdown-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin: 0.35rem 0;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-orange);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links .nav-cta {
  background-color: var(--color-orange);
  color: var(--color-navy-dark);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 700;
}

.nav-links .nav-cta::after {
  display: none;
}

.nav-links .nav-cta:hover {
  background-color: var(--color-orange-hover);
  color: var(--color-white);
  transform: translateY(-1px);
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-xs);
  line-height: 1;
}

/* =====================================================
   7. HERO SECTION
   ===================================================== */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  /* OWNER: Replace images/hero-bg.jpg with your own hero photo */
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-color: var(--color-navy-dark); /* fallback if no image */
  display: flex;
  align-items: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 0, 0, 0.82) 0%,
    rgba(28, 28, 28, 0.72) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--color-white);
  max-width: 760px;
  padding: var(--spacing-lg) var(--spacing-md);
}

.hero-badge {
  display: inline-block;
  background-color: var(--color-orange);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.85rem;
  border-radius: 2rem;
  margin-bottom: var(--spacing-sm);
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  font-size: clamp(2rem, 5vw, 3.25rem);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--spacing-md);
  max-width: 600px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  align-items: center;
}

.hero-trust {
  margin-top: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255,255,255,0.75);
  font-size: 0.875rem;
  font-weight: 500;
}

.trust-item::before {
  content: '✓';
  color: var(--color-orange);
  font-weight: 700;
  font-size: 1rem;
}

/* =====================================================
   8. SERVICES SECTION
   ===================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.service-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-sm);
  border: 1px solid var(--color-gray-mid);
}

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

.service-icon {
  width: 52px;
  height: 52px;
  background-color: rgba(232, 114, 42, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.service-card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.service-card p {
  font-size: 0.9rem;
  flex-grow: 1;
}

.service-card .btn {
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
  margin-top: auto;
}

/* =====================================================
   9. HOW IT WORKS SECTION
   ===================================================== */
.steps-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-bottom: var(--spacing-md);
}

.step {
  flex: 1;
  max-width: 280px;
  text-align: center;
  padding: var(--spacing-md) var(--spacing-sm);
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--color-navy);
  color: var(--color-white);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
}

.step h3 {
  margin-bottom: var(--spacing-xs);
}

.step-arrow {
  font-size: 2rem;
  color: var(--color-orange);
  display: flex;
  align-items: center;
  padding-top: 1.5rem;
  flex-shrink: 0;
  font-weight: 700;
}

.how-it-works-cta {
  text-align: center;
  padding-top: var(--spacing-sm);
}

/* =====================================================
   10. PORTFOLIO SECTION
   ===================================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.portfolio-item {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-md);
  background-color: var(--color-gray-light);
  position: relative;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}

.portfolio-item:hover img {
  transform: scale(1.05);
}

/* Auto-hide placeholder once an <img> is uncommented in the same slot */
.portfolio-item:has(img) .portfolio-placeholder {
  display: none;
}

/* Placeholder shown until owner adds real photos */
.portfolio-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-gray-mid);
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  gap: 0.4rem;
  text-align: center;
  padding: var(--spacing-sm);
  cursor: default;
}

.portfolio-placeholder .ph-icon {
  font-size: 2rem;
  color: var(--color-gray-dark);
  line-height: 1;
}

.portfolio-placeholder .ph-label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.portfolio-placeholder .ph-hint {
  font-size: 0.75rem;
  color: var(--color-gray-dark);
  word-break: break-all;
}

.portfolio-cta {
  text-align: center;
}

/* =====================================================
   11. ESTIMATE FORM SECTION
   ===================================================== */
.native-form {
  max-width: 680px;
  margin: 0 auto;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-gray-mid);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-navy);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-gray-mid);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  color: var(--color-text);
  background-color: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.12);
}

.form-group input[type="file"] {
  padding: 0.6rem 1rem;
  cursor: pointer;
}

.form-group small {
  font-size: 0.8rem;
  color: var(--color-gray-dark);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  margin-top: var(--spacing-sm);
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
}

.form-success {
  text-align: center;
  padding: var(--spacing-md);
}

.form-success h3 {
  color: var(--color-navy);
  margin-bottom: var(--spacing-xs);
}

/* =====================================================
   12. FOOTER
   ===================================================== */
.site-footer {
  background-color: var(--color-navy-dark);
  color: rgba(255,255,255,0.75);
  padding: var(--spacing-lg) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--spacing-sm);
}

.footer-brand-badges {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.footer-badge {
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 2rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-section h4 {
  color: var(--color-white);
  font-size: 0.9375rem;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-section p,
.footer-section a {
  display: block;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}

.footer-section a:hover {
  color: var(--color-orange);
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition);
}

.social-link:hover {
  color: var(--color-orange);
}

.social-link::before {
  content: '→';
  color: var(--color-orange);
  font-size: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: var(--spacing-sm) 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
}

/* =====================================================
   13. RESPONSIVE BREAKPOINTS
   ===================================================== */

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


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

  .footer-brand {
    grid-column: span 2;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  /* Nav */
  .nav-hamburger {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--color-navy-dark);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--spacing-sm) 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  }

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

  .nav-links a {
    padding: 0.85rem var(--spacing-md);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links .nav-cta {
    margin: var(--spacing-sm) var(--spacing-md);
    text-align: center;
    border-radius: var(--radius-md);
    padding: 0.85rem;
  }

  .site-header {
    position: sticky;
  }

  /* Hero */
  .hero-content {
    padding: var(--spacing-md);
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions .btn {
    width: 100%;
    text-align: center;
  }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
  }

  /* How it works */
  .steps-row {
    flex-direction: column;
    align-items: center;
  }

  .step-arrow {
    transform: rotate(90deg);
    padding-top: 0;
    font-size: 1.5rem;
  }

  .step {
    max-width: 100%;
    width: 100%;
  }

  /* Portfolio */
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Form */
  .form-row {
    grid-template-columns: 1fr;
  }

  .native-form {
    padding: var(--spacing-md);
  }


  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: span 1;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}


/* ── Nav phone link ──────────────────────────────────── */
.nav-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  white-space: nowrap;
  padding: 6px 14px;
  border: 2px solid var(--color-white);
  border-radius: var(--radius-md);
}

/* ── Hero phone button ───────────────────────────────── */
.btn-phone-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  border: 2px solid var(--color-white);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-family: var(--font-primary);
}

/* ── AI Chat floating widget ─────────────────────────── */

/* Floating bubble button */
.chat-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9998;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 700;
  background-color: var(--color-orange);
  color: #fff;
  box-shadow: 0 4px 18px rgba(0,0,0,0.28);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.chat-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,0,0,0.34);
}
.chat-fab-icon { font-size: 1.1rem; line-height: 1; }

/* Chat panel */
.chat-panel {
  position: fixed;
  bottom: 84px;
  right: 24px;
  z-index: 9999;
  width: 340px;
  max-height: 520px;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.22);
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.chat-panel.chat-panel-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* Panel header */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--color-navy-dark);
  color: #fff;
  flex-shrink: 0;
}
.chat-header-info {
  display: flex;
  align-items: center;
  gap: 10px;
}
.chat-avatar {
  font-size: 1.5rem;
  line-height: 1;
}
.chat-header-info strong {
  display: block;
  font-size: 0.9rem;
  color: var(--color-yellow);
}
.chat-header-info span {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.65);
}
.chat-close {
  background: none;
  border: none;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.chat-close:hover { color: #fff; background: rgba(255,255,255,0.1); }

/* Messages list */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Individual messages */
.chat-msg {
  max-width: 82%;
  padding: 9px 13px;
  border-radius: 14px;
  font-size: 0.875rem;
  line-height: 1.5;
  word-wrap: break-word;
}
.chat-msg-assistant {
  align-self: flex-start;
  background: #f1f1f1;
  color: #1c1c1c;
  border-bottom-left-radius: 4px;
}
.chat-msg-user {
  align-self: flex-end;
  background: var(--color-orange);
  color: #fff;
  border-bottom-right-radius: 4px;
}

/* Typing indicator */
.chat-typing {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
}
.chat-typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #aaa;
  animation: chat-bounce 1.1s ease-in-out infinite;
}
.chat-typing span:nth-child(2) { animation-delay: 0.18s; }
.chat-typing span:nth-child(3) { animation-delay: 0.36s; }
@keyframes chat-bounce {
  0%, 80%, 100% { transform: translateY(0); }
  40%           { transform: translateY(-6px); }
}

/* Input row */
.chat-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid #e8e8e8;
  flex-shrink: 0;
}
.chat-input {
  flex: 1;
  border: 1px solid #ddd;
  border-radius: 20px;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-family: var(--font-primary);
  outline: none;
  transition: border-color 0.15s;
}
.chat-input:focus { border-color: var(--color-orange); }
.chat-send {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--color-orange);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background-color 0.15s, transform 0.15s;
}
.chat-send:hover:not(:disabled) {
  background: var(--color-navy-dark);
  transform: scale(1.08);
}
.chat-send:disabled { opacity: 0.5; cursor: not-allowed; }

@media (max-width: 480px) {
  .chat-fab   { bottom: 16px; right: 16px; padding: 10px 16px; font-size: 0.8125rem; }
  .chat-panel { right: 12px; left: 12px; width: auto; bottom: 74px; }
  .nav-phone  { display: none; }
}