/* ============================================
   Layout v3: container, header (3 меню), footer, mobile
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow { max-width: var(--container-narrow); }
.container-wide   { max-width: var(--container-wide); }
.container-full   { max-width: var(--container-full); }

@media (max-width: 720px) {
  .container { padding: 0 var(--space-4); }
}

/* =========================
   HEADER (sticky, glassmorphism)
   ========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: var(--space-8);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-tight);
  color: var(--color-fg);
  flex-shrink: 0;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.brand:hover { opacity: 0.7; }

.brand-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-mark img,
.brand-mark svg {
  width: 32px;
  height: 32px;
  display: block;
}

.brand-name {
  display: inline-flex;
  align-items: baseline;
  letter-spacing: -0.025em;
  font-size: var(--text-lg);
}

.brand-name .accent { color: var(--color-brand); }

/* Главное меню: 3 пункта (Каталог / AI / Услуги) */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  margin-left: var(--space-8);
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-fg-4);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -2px;
  transform: translateX(-50%) scaleX(0);
  width: 20px;
  height: 2px;
  background: var(--color-fg);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out);
}

.main-nav a:hover {
  color: var(--color-fg);
  background: var(--color-bg-2);
}

.main-nav a:hover::after {
  transform: translateX(-50%) scaleX(0.6);
}

.main-nav a.active {
  color: var(--color-fg);
  font-weight: 600;
}

.main-nav a.active::after {
  transform: translateX(-50%) scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.header-login,
.header-register {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 14px;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.header-login { color: var(--color-fg); }
.header-login:hover { background: var(--color-bg-2); }
.header-login svg { width: 16px; height: 16px; }

.header-register { padding-right: 12px; }
.header-register svg { width: 14px; height: 14px; }
.header-register:hover { transform: translateY(-1px); }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-fg);
  transition: background var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
  position: relative;
  flex-shrink: 0;
}

.btn-icon:hover { background: var(--color-bg-2); transform: scale(1.05); }
.btn-icon:active { transform: scale(0.95); }

.btn-icon svg { width: 20px; height: 20px; }

.btn-icon .dot {
  position: absolute;
  top: 9px;
  right: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-brand);
  border: 2px solid #fff;
  animation: ping 1.6s var(--ease-out) infinite;
}

.btn-icon.with-text {
  width: auto;
  padding: 0 16px;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 500;
}

.btn-icon.with-text svg { width: 16px; height: 16px; }

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 40px;
  padding: 0 4px 0 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: #fff;
  box-shadow: var(--shadow-xs);
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
}

.user-chip:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-fg-7);
  transform: translateY(-1px);
}

.user-chip .avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #e7342a, #ff7a5c);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 600;
  flex-shrink: 0;
}

.user-chip .menu-icon {
  width: 16px;
  height: 16px;
  color: var(--color-fg);
}

.mobile-burger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
}

.mobile-burger:hover { background: var(--color-bg-2); }
.mobile-burger svg { width: 20px; height: 20px; }

@media (max-width: 900px) {
  .main-nav { display: none; }
  .mobile-burger { display: inline-flex; }
  .header-actions .hide-mobile { display: none; }
  .user-chip { padding: 0; }
  .user-chip .menu-icon { display: none; }
  .user-chip .avatar { width: 32px; height: 32px; }
}

/* =========================
   MOBILE BOTTOM TAB BAR
   ========================= */
.mobile-tabbar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-tabbar);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-top: 1px solid var(--color-border);
  padding: 6px 8px max(6px, env(safe-area-inset-bottom));
}

.mobile-tabbar-inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  max-width: 600px;
  margin: 0 auto;
}

.mobile-tabbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 6px 0 4px;
  border-radius: var(--radius-md);
  color: var(--color-fg-6);
  font-size: 10px;
  font-weight: 500;
  transition: color var(--duration-fast) var(--ease-out);
}

.mobile-tabbar a.active { color: var(--color-fg); }

.mobile-tabbar a svg { width: 22px; height: 22px; stroke-width: 1.6; }

.mobile-tabbar a.fab {
  position: relative;
  background: var(--color-fg);
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin: -16px auto -2px;
  box-shadow: var(--shadow-lg);
}

.mobile-tabbar a.fab:hover { transform: scale(1.05); }
.mobile-tabbar a.fab svg { width: 22px; height: 22px; stroke-width: 2; }
.mobile-tabbar a.fab span { display: none; }

@media (max-width: 900px) {
  .mobile-tabbar { display: block; }
  body { padding-bottom: var(--tabbar-h); }
}

/* =========================
   MOBILE MENU (full-screen overlay)
   ========================= */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: #fff;
  display: none;
  flex-direction: column;
  padding: var(--space-6) var(--space-4) var(--space-10);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  animation: fadeIn 240ms var(--ease-out);
}

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

.mobile-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-8);
}

.mobile-menu nav a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-fg);
  border: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease-out);
  animation: slideRight 360ms var(--ease-out) backwards;
}

.mobile-menu nav a:nth-child(1) { animation-delay: 0ms; }
.mobile-menu nav a:nth-child(2) { animation-delay: 40ms; }
.mobile-menu nav a:nth-child(3) { animation-delay: 80ms; }
.mobile-menu nav a:nth-child(4) { animation-delay: 120ms; }
.mobile-menu nav a:nth-child(5) { animation-delay: 160ms; }
.mobile-menu nav a:nth-child(6) { animation-delay: 200ms; }
.mobile-menu nav a:nth-child(7) { animation-delay: 240ms; }
.mobile-menu nav a:nth-child(8) { animation-delay: 280ms; }

.mobile-menu nav a:hover,
.mobile-menu nav a.active {
  background: var(--color-bg-1);
  border-color: var(--color-border);
  transform: translateX(4px);
}

.mobile-menu nav a svg { width: 20px; height: 20px; color: var(--color-fg-4); }

.mobile-menu .user-block {
  margin-top: auto;
  padding: var(--space-4);
  background: var(--color-bg-1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border: 1px solid var(--color-border);
}

.mobile-menu .user-block .avatar { width: 40px; height: 40px; flex-shrink: 0; }

/* =========================
   FOOTER v3
   ========================= */
.site-footer {
  background: var(--color-fg);
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--space-24);
  padding: var(--space-20) 0 var(--space-10);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(231, 52, 42, 0.18) 0%, transparent 60%);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(4, 120, 87, 0.10) 0%, transparent 60%);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: var(--space-10);
  margin-bottom: var(--space-12);
  position: relative;
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .site-footer { padding: var(--space-12) 0 var(--space-6); }
}

.footer-brand .brand { color: #fff; margin-bottom: var(--space-4); }
.footer-brand .brand .accent { color: var(--color-brand); }
.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 320px;
  margin-bottom: var(--space-5);
}

.footer-brand .footer-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.footer-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.75);
}

.footer-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.footer-app {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: #fff;
  margin-top: var(--space-3);
  transition: all var(--duration-fast) var(--ease-out);
}

.footer-app:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.20);
  transform: translateY(-1px);
}

.footer-app .ico {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #fff;
  color: var(--color-fg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
}

.footer-app .lbl { font-size: var(--text-xs); color: rgba(255, 255, 255, 0.5); }
.footer-app .sub { font-size: var(--text-sm); font-weight: 600; }

.footer-col h4 {
  font-size: var(--text-2xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-4);
}

.footer-col > ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: var(--space-4);
}

.footer-col > ul a {
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--text-sm);
  transition: color var(--duration-fast) var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.footer-col > ul a:hover { color: #fff; }

.footer-col .sublist {
  margin-left: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.footer-col .sublist a {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--text-xs);
}

.footer-col .sublist a:hover { color: rgba(255, 255, 255, 0.8); }

.footer-col details {
  margin-top: var(--space-3);
}

.footer-col details summary {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--text-sm);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.footer-col details summary::-webkit-details-marker { display: none; }
.footer-col details summary::before {
  content: "→";
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
  transition: transform var(--duration-fast);
}

.footer-col details[open] summary::before { transform: rotate(90deg); }

.footer-bottom {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--text-sm);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-bottom-links a { color: rgba(255, 255, 255, 0.5); }
.footer-bottom-links a:hover { color: #fff; }

/* =========================
   HERO (3.0)
   ========================= */
.hero {
  position: relative;
  padding: var(--space-12) 0 var(--space-10);
  background: var(--grad-hero);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 30%;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(231, 52, 42, 0.04) 0%, transparent 60%);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  animation: blob 12s ease-in-out infinite;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  max-width: 880px;
  margin-bottom: var(--space-5);
  animation: fadeUp 600ms var(--ease-out) backwards;
}

.hero .lede {
  font-size: var(--text-lg);
  color: var(--color-fg-4);
  max-width: 640px;
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  animation: fadeUp 700ms var(--ease-out) 80ms backwards;
}

/* Search bar (2 fields: type / budget) */
.search-bar-hero {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 8px 8px 8px var(--space-6);
  box-shadow: var(--shadow-md);
  max-width: 720px;
  margin-top: var(--space-2);
  transition: box-shadow var(--duration-base) var(--ease-out);
  animation: fadeUp 800ms var(--ease-out) 160ms backwards;
}

.search-bar-hero:focus-within {
  box-shadow: var(--shadow-xl);
  border-color: var(--color-fg-7);
}

.search-bar-hero .seg {
  flex: 1;
  padding: 8px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
  min-width: 0;
}

.search-bar-hero .seg:hover { background: var(--color-bg-2); }

.search-bar-hero .seg + .seg { border-left: 1px solid var(--color-border); }

.search-bar-hero .seg-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-fg);
  margin-bottom: 2px;
}

.search-bar-hero .seg-value {
  font-size: var(--text-sm);
  color: var(--color-fg-6);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-bar-hero .seg-value svg { width: 14px; height: 14px; }

.search-bar-hero .submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-fg);
  color: #fff;
  flex-shrink: 0;
  transition: all var(--duration-fast) var(--ease-out);
}

.search-bar-hero .submit:hover {
  background: var(--color-brand);
  transform: scale(1.05) rotate(-8deg);
  box-shadow: var(--shadow-brand);
}

.search-bar-hero .submit svg { width: 18px; height: 18px; stroke-width: 2; }

@media (max-width: 600px) {
  .search-bar-hero {
    flex-direction: column;
    align-items: stretch;
    border-radius: var(--radius-xl);
    padding: var(--space-3);
  }
  .search-bar-hero .seg { padding: 12px 14px; }
  .search-bar-hero .seg + .seg { border-left: none; border-top: 1px solid var(--color-border); }
  .search-bar-hero .submit { width: 100%; height: 48px; border-radius: var(--radius-full); }
  .search-bar-hero .submit::after { content: "Найти"; font-size: var(--text-sm); font-weight: 500; margin-left: 8px; }
  .search-bar-hero .submit svg { display: none; }
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: var(--space-6);
  flex-wrap: wrap;
  animation: fadeUp 900ms var(--ease-out) 240ms backwards;
}

/* =========================
   SECTION
   ========================= */
.section {
  padding: var(--space-20) 0;
}

@media (max-width: 900px) {
  .section { padding: var(--space-12) 0; }
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-10);
  gap: var(--space-6);
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: clamp(28px, 3.5vw, var(--text-4xl));
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  max-width: 720px;
  text-wrap: balance;
}

.section-head p {
  color: var(--color-fg-4);
  font-size: var(--text-lg);
  max-width: 560px;
  margin-top: var(--space-3);
  line-height: var(--leading-relaxed);
}

.section-head .link {
  color: var(--color-fg);
  font-weight: 500;
  font-size: var(--text-sm);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  transition: color var(--duration-fast);
}

.section-head .link:hover { color: var(--color-brand); }

/* =========================
   GRID
   ========================= */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1200px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}