/* AIDIXA — Startup landing */

:root {
  --bg: #ffffff;
  --bg-alt: #f7f8fb;
  --bg-dark: #0b1020;
  --text: #0f172a;
  --text-sub: #475569;
  --text-dim: #94a3b8;
  --border: #e5e7eb;
  --border-strong: #cbd5e1;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --brand-light: #eff6ff;
  --success: #10b981;
  --warning: #f59e0b;
  --header-h: 96px;
  --container: 1280px;
  --px: clamp(20px, 4vw, 48px);
  --font: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--px);
  padding-right: var(--px);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--brand);
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.875rem, 3.2vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--text);
}

.section-sub {
  font-size: 1.0625rem;
  color: var(--text-sub);
  margin-top: 16px;
  max-width: 680px;
  line-height: 1.65;
}

.section-head {
  margin-bottom: 64px;
  max-width: 800px;
}

/* ═══ HEADER ═══ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,0.88);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.site-header.is-scrolled { border-bottom-color: var(--border); }

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 36px;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.logo-img {
  height: 64px;
  width: auto;
  display: block;
  transition: transform 0.2s, opacity 0.2s;
}
.logo:hover .logo-img { transform: scale(1.05); opacity: 0.9; }
.logo:active .logo-img { transform: scale(0.97); }

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.desktop-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-sub);
  transition: color 0.15s;
}
.desktop-nav a:hover { color: var(--text); }

/* Dropdown */
.nav-dropdown {
  position: relative;
}
.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.nav-dropdown-trigger::after {
  content: '';
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.5;
  transition: transform 0.2s;
}
.nav-dropdown:hover .nav-dropdown-trigger::after { transform: rotate(180deg); }

.nav-dropdown-panel {
  position: absolute;
  top: 100%;
  left: -16px;
  padding-top: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s;
  pointer-events: none;
}
.nav-dropdown:hover .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-dropdown-panel::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 0; right: 0;
  bottom: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 16px 48px -12px rgba(0,0,0,0.15);
  z-index: -1;
}

.dropdown-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 20px;
  min-width: 280px;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.dropdown-item:first-child { border-radius: 12px 12px 0 0; }
.dropdown-item:last-child { border-bottom: none; border-radius: 0 0 12px 12px; }
.dropdown-item:hover { background: var(--bg-alt); }

.dropdown-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
}
.dropdown-desc {
  font-size: 0.8125rem;
  color: var(--text-sub);
}

/* Mobile section label */
.mobile-section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 20px 0 8px;
}
.mobile-section-label:first-child { padding-top: 0; }

.header-cta {
  margin-left: auto;
  padding: 10px 20px;
  background: var(--text);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  transition: background 0.15s, transform 0.15s;
}
.header-cta:hover { background: #1e293b; transform: translateY(-1px); }

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 40px;
  justify-content: center;
  align-items: center;
  margin-left: auto;
}
.menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}
.menu-btn.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-btn.is-open span:nth-child(2) { opacity: 0; }
.menu-btn.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  display: flex;
  flex-direction: column;
  padding: 20px var(--px) 28px;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s, opacity 0.2s;
}
.mobile-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mobile-link, .mobile-cta {
  padding: 16px 0;
  font-size: 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}
.mobile-link { color: var(--text); }
.mobile-cta { color: var(--brand); border-bottom: none; margin-top: 8px; }

/* ═══ HERO ═══ */
.hero {
  padding-top: calc(var(--header-h) + 100px);
  padding-bottom: 120px;
  background:
    radial-gradient(ellipse 80% 60% at 90% 20%, rgba(37,99,235,0.06), transparent 60%),
    var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--brand);
  letter-spacing: 0.02em;
  padding: 6px 14px;
  background: var(--brand-light);
  border-radius: 999px;
  margin-bottom: 28px;
  opacity: 0;
  animation: fade-up 0.5s ease forwards;
}
.hero-tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.035em;
  color: var(--text);
  margin-bottom: 28px;
  opacity: 0;
  animation: fade-up 0.6s ease forwards;
  animation-delay: 0.15s;
}
.hero-title .accent {
  background: linear-gradient(135deg, var(--brand) 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 520px;
  opacity: 0;
  animation: fade-up 0.6s ease forwards;
  animation-delay: 0.3s;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fade-up 0.6s ease forwards;
  animation-delay: 0.45s;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 13px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.15s;
}
.btn-primary { background: var(--text); color: #fff; }
.btn-primary:hover { background: #1e293b; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(15,23,42,0.15); }

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--text); }

@keyframes fade-up {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-in {
  to { opacity: 1; }
}

/* Hero visual — mock browser */
.hero-visual {
  position: relative;
  opacity: 0;
  animation: fade-in 0.8s ease forwards;
  animation-delay: 0.5s;
}

.mock-browser {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(15,23,42,0.25), 0 10px 30px -10px rgba(15,23,42,0.08);
  font-family: var(--font);
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: #f9fafb;
  border-bottom: 1px solid var(--border);
}
.mock-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #e5e7eb;
}
.mock-dot:nth-child(1) { background: #ef4444; }
.mock-dot:nth-child(2) { background: #f59e0b; }
.mock-dot:nth-child(3) { background: #10b981; }
.mock-url {
  margin-left: 16px;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-sub);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 12px;
  flex: 1;
  text-align: center;
}

.mock-body {
  display: grid;
  grid-template-columns: 160px 1fr;
  min-height: 340px;
}

.mock-sidebar {
  background: #fafbfc;
  border-right: 1px solid var(--border);
  padding: 16px 12px;
}
.mock-sb-title {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  margin-bottom: 8px;
}
.mock-agent {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-sub);
  margin-bottom: 2px;
}
.mock-agent.active {
  background: var(--brand-light);
  color: var(--brand);
  font-weight: 700;
}
.mock-avatar {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #a5b4fc, #818cf8);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mock-agent:nth-child(2) .mock-avatar { background: linear-gradient(135deg, #fca5a5, #f87171); }
.mock-agent:nth-child(3) .mock-avatar { background: linear-gradient(135deg, #fcd34d, #fbbf24); }
.mock-agent:nth-child(4) .mock-avatar { background: linear-gradient(135deg, #86efac, #4ade80); }
.mock-agent:nth-child(5) .mock-avatar { background: linear-gradient(135deg, #c4b5fd, #a78bfa); }
.mock-agent:nth-child(6) .mock-avatar { background: linear-gradient(135deg, #f9a8d4, #f472b6); }

.mock-main {
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #fff;
}
.mock-chat {
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.8125rem;
  line-height: 1.45;
  max-width: 85%;
}
.mock-chat-user {
  background: var(--bg-alt);
  color: var(--text);
  align-self: flex-end;
}
.mock-chat-ai {
  background: var(--brand-light);
  color: var(--brand-dark);
  align-self: flex-start;
  min-height: 32px;
  display: flex;
  align-items: center;
}
.mock-typing {
  display: flex;
  gap: 4px;
}
.mock-typing span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
  animation: typing 1.4s ease-in-out infinite;
}
.mock-typing span:nth-child(2) { animation-delay: 0.2s; }
.mock-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

.mock-panel {
  margin-top: auto;
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}
.mock-panel-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.mock-live-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.2);
}
.mock-panel-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 3px 0;
}
.mock-panel-row > span:first-child { color: var(--text-sub); }
.mock-val-ok { color: var(--success); font-weight: 700; }

/* ═══ TRUST BAR ═══ */
.trust-bar {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 28px 0;
}
.trust-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}
.trust-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.trust-logos {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.trust-item {
  font-family: var(--mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-sub);
  letter-spacing: 0.01em;
}
.trust-sep {
  color: var(--border-strong);
}

/* ═══ STATS ═══ */
.stats {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 72px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat {
  padding: 28px 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all 0.2s;
}
.stat:hover {
  border-color: var(--brand);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px -12px rgba(37,99,235,0.15);
}
.stat-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.stat-num {
  font-size: clamp(2rem, 3.6vw, 2.75rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
}
.stat-label {
  font-size: 0.8125rem;
  color: var(--text-sub);
  font-weight: 600;
  text-align: right;
}
.stat-desc {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ═══ SERVICES ═══ */
.services { padding: 120px 0; }
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-card {
  display: flex;
  flex-direction: column;
  padding: 40px 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: all 0.2s;
  position: relative;
}
.service-card:hover {
  border-color: var(--text);
  transform: translateY(-4px);
  box-shadow: 0 24px 50px -20px rgba(15,23,42,0.12);
}

.service-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.service-num {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border-radius: 999px;
}
.badge-live {
  color: var(--success);
  background: rgba(16,185,129,0.1);
}
.badge-live::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
}
.badge-beta {
  color: var(--warning);
  background: rgba(245,158,11,0.1);
}
.badge-beta::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--warning);
}

.service-name {
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 6px;
}
.service-tagline {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--brand);
  margin-bottom: 16px;
}
.service-desc {
  font-size: 0.9375rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.service-tags span {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-sub);
  padding: 4px 10px;
  background: var(--bg-alt);
  border-radius: 6px;
}

.service-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand);
}
.service-url { font-family: var(--mono); font-size: 0.8125rem; }
.service-arrow { transition: transform 0.2s; }
.service-card:hover .service-arrow { transform: translateX(4px); }

/* ═══ ABOUT ═══ */
.about {
  padding: 120px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: start;
}
.about-left .eyebrow { margin-bottom: 16px; }
.about-desc {
  font-size: 1.0625rem;
  color: var(--text-sub);
  line-height: 1.8;
  margin-top: 24px;
}

.about-right {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.spec-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.spec-row:last-child { border-bottom: none; }
.spec-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.spec-value {
  font-size: 0.9375rem;
  color: var(--text);
  font-weight: 500;
  line-height: 1.6;
}

/* ═══ CONTACT ═══ */
.contact {
  padding: 120px 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.contact-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.contact-inner .eyebrow { margin-bottom: 16px; }
.contact-title {
  font-size: clamp(1.875rem, 3.2vw, 2.75rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin-bottom: 16px;
}
.contact-desc {
  font-size: 1.0625rem;
  color: var(--text-sub);
  margin-bottom: 40px;
  line-height: 1.7;
}
.contact-email {
  display: inline-block;
  font-family: var(--mono);
  font-size: clamp(1.25rem, 2.6vw, 1.625rem);
  font-weight: 600;
  color: var(--bg);
  background: var(--text);
  padding: 18px 36px;
  border-radius: 12px;
  transition: all 0.2s;
}
.contact-email:hover {
  background: var(--brand);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(37,99,235,0.25);
}

/* ═══ FOOTER ═══ */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.65);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 48px;
}
.footer-logo {
  display: inline-block;
  margin-bottom: 14px;
}
.footer-logo-img {
  height: 44px;
  width: auto;
  display: block;
}
.footer-tag {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
  font-style: italic;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.45);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.footer-col a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  transition: color 0.15s;
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-bottom p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
  text-align: center;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
  .hero-grid { gap: 48px; }
  .hero-visual { min-height: 380px; }
  .about-grid { gap: 48px; }
}

@media (max-width: 860px) {
  .hero { padding-top: calc(var(--header-h) + 48px); padding-bottom: 80px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 560px; margin: 0 auto; width: 100%; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-inner { gap: 16px; }
  .trust-logos { gap: 12px; }

  .service-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .desktop-nav, .header-cta { display: none; }
  .menu-btn { display: flex; }

  .services, .about, .contact { padding: 80px 0; }

  .mock-body { grid-template-columns: 110px 1fr; min-height: 280px; }
  .mock-sidebar { padding: 12px 8px; }
  .mock-agent { font-size: 0.72rem; padding: 6px 8px; gap: 6px; }
  .mock-avatar { width: 20px; height: 20px; font-size: 0.65rem; }

  .service-card { padding: 28px 24px; }
  .service-name { font-size: 1.5rem; }

  .spec-row { grid-template-columns: 1fr; gap: 4px; padding: 16px 20px; }

  .btn { padding: 12px 20px; }
  .btn-primary, .btn-secondary { flex: 1; justify-content: center; }
}