:root {
  --bg: #101820;
  --bg-soft: #17212b;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.78);
  --ink: #17202a;
  --ink-muted: #5a6672;
  --line: #dfe4ea;
  --surface: #ffffff;
  --surface-alt: #f4f6f8;
  --accent: #df2f2f;
  --accent-dark: #b92525;
  --field: #f6f7f8;
  --panel: #20262d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--surface);
}

.top-strip {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 7;
  display: flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 34px;
  padding: 6px 18px;
  color: rgba(255, 255, 255, 0.82);
  background: #090d12;
  font-size: 0.82rem;
  font-weight: 700;
}

.top-strip a,
.top-strip button {
  color: #fff;
  text-decoration: none;
}

.top-strip a {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
  font-weight: 800;
  white-space: nowrap;
}

.top-strip button {
  min-height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0 14px;
  background: rgba(223, 47, 47, 0.9);
  font-weight: 800;
  text-transform: uppercase;
}

.top-social {
  position: absolute;
  left: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 3px 5px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 10px 24px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(8px);
}

.top-strip .top-social__item {
  display: inline-flex;
  width: 36px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 0;
  background: transparent;
  box-shadow: none;
  transition: transform 0.2s ease, filter 0.2s ease, background 0.2s ease;
}

.top-social__item:hover {
  background: rgba(255, 255, 255, 0.12);
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.top-social__item svg {
  display: block;
  width: 27px;
  height: 27px;
  filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.22));
}

.top-social__item--instagram svg {
  border-radius: 7px;
}

.top-social__item--tiktok svg {
  width: 29px;
  height: 29px;
  border-radius: 999px;
  padding: 2px;
  background: #fff;
  filter: drop-shadow(0 3px 7px rgba(37, 244, 238, 0.24));
}

.messenger-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.messenger-links a {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0 10px;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
}

.messenger-links a:hover {
  border-color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
}

.messenger-links--hero {
  margin-top: 16px;
}

.messenger-links--hero a {
  min-height: 36px;
  padding: 0 14px;
}

.messenger-links--contact a {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

body.modal-open {
  overflow: hidden;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 34px;
  left: 0;
  right: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 58px;
  padding: 8px max(18px, calc((100vw - 1240px) / 2));
  color: #fff;
  background: rgba(10, 15, 21, 0.72);
  backdrop-filter: blur(14px);
}

.brand img {
  display: block;
  width: 76px;
  height: auto;
  filter: brightness(0) invert(1);
}

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 0;
  border-radius: 6px;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 260ms ease, opacity 200ms ease;
}

.nav-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
  display: flex;
  gap: 15px;
  align-items: center;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.84rem;
  font-weight: 700;
}

.main-nav a,
.header-phone,
.site-footer a {
  text-decoration: none;
}

.main-nav a:hover,
.header-phone:hover,
.site-footer a:hover {
  text-decoration: underline;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.social-links__item {
  display: inline-flex;
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.social-links__item:hover {
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

.social-links__item svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.social-links__item--instagram:hover {
  background: #e1306c;
}

.social-links__item--facebook:hover {
  background: #1877f2;
}

.social-links__item--youtube:hover {
  background: #ff0000;
}

.nav-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-dropdown__trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-dropdown__trigger::after {
  width: 6px;
  height: 6px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  content: "";
  transform: rotate(45deg) translateY(-2px);
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  z-index: 12;
  display: grid;
  min-width: 290px;
  padding: 10px;
  border: 1px solid rgba(16, 24, 32, 0.08);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 22px 70px rgba(16, 24, 32, 0.18);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity 140ms ease, transform 140ms ease;
}

.nav-dropdown__menu::before {
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  height: 16px;
  content: "";
}

.nav-dropdown__menu a {
  border-radius: 6px;
  padding: 11px 14px;
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.25;
  text-decoration: none;
}

.nav-dropdown__menu a:hover,
.nav-dropdown__menu a:focus {
  color: var(--accent);
  background: var(--surface-alt);
  text-decoration: none;
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown:focus-within .nav-dropdown__menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.language-switch {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px; /* Pill shape */
  background: rgba(0, 0, 0, 0.2);
}

.language-switch button {
  min-height: 32px;
  border: 0;
  padding: 0 12px;
  color: rgba(255, 255, 255, 0.7);
  background: transparent;
  font-size: 0.75rem;
  font-weight: 800;
  transition: all 200ms ease;
  border-radius: 999px;
}

.language-switch button.is-active {
  color: #fff;
  background: rgba(223, 47, 47, 0.8);
  box-shadow: 0 2px 8px rgba(223, 47, 47, 0.4);
}

.header-phone {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0 14px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
  font-weight: 800;
  white-space: nowrap;
}

.header-cta {
  min-height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 0 13px;
  color: #fff;
  background: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.header-cta:hover {
  background: var(--accent-dark);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  color: var(--text);
}

.hero__media,
.hero__overlay {
  position: absolute;
  inset: 0;
}

.hero__media {
  background: url("assets/sandwich-panel.jpg") center / cover no-repeat;
  transform: scale(1.02);
}

.hero__overlay {
  background:
    linear-gradient(90deg, rgba(4, 9, 15, 0.9) 0%, rgba(8, 13, 18, 0.66) 48%, rgba(8, 13, 18, 0.12) 100%),
    rgba(0, 0, 0, 0.24);
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100svh;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 126px 0 44px;
  align-items: center;
}

.hero__inner--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 44px;
}

.hero__copy {
  width: min(760px, 100%);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: rgba(255, 255, 255, 0.78);
}

h1,
h2,
h3,
p,
dl,
dd,
ol {
  margin-top: 0;
}

h1 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: clamp(2.7rem, 5.3vw, 5.1rem);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.8vw, 3.8rem);
  line-height: 1.06;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.16rem;
  line-height: 1.25;
}

.lead {
  max-width: 650px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.5;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.hero-badges li {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 8px 12px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.88rem;
  font-weight: 700;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  padding: 0 26px;
  font-weight: 800;
  text-transform: uppercase;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary,
.button--form {
  color: #fff;
  background: var(--accent);
}

.button:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.button--primary:hover,
.button--form:hover {
  background: var(--accent-dark);
}

.button--outline {
  border: 1px solid rgba(255, 255, 255, 0.42);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}

.button--outline:hover {
  border-color: rgba(255, 255, 255, 0.75);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 780px;
  margin: 28px 0 0;
}

.hero-facts div {
  border-left: 3px solid var(--accent);
  padding: 4px 18px;
  background: rgba(255, 255, 255, 0.07);
}

.hero-facts dt {
  font-size: 1.05rem;
  font-weight: 800;
}

.hero-facts dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.76);
}

.hero-panel {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 26px;
  background: rgba(16, 24, 32, 0.82);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(12px);
}

.hero-panel h2 {
  margin-bottom: 10px;
  font-size: 1.65rem;
}

.hero-panel p {
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.55;
}

.quick-form,
.estimator-form {
  display: grid;
  gap: 12px;
}

.quick-form input,
.estimator-form input,
.estimator-form select,
.offer-form textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--field);
}

.offer-form textarea {
  min-height: 92px;
  padding-top: 12px;
  resize: vertical;
}

.estimator-form select {
  appearance: none;
}

.quick-form input:focus,
.estimator-form input:focus,
.estimator-form select:focus,
.offer-form textarea:focus {
  outline: 2px solid rgba(223, 47, 47, 0.55);
  outline-offset: 2px;
}

.form-status {
  min-height: 20px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.88rem;
  line-height: 1.45;
}

.stats-band {
  padding: 34px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stats-grid div {
  border-left: 3px solid var(--accent);
  padding: 6px 18px;
}

.stats-grid strong,
.stats-grid span {
  display: block;
}

.stats-grid strong {
  margin-bottom: 4px;
  font-size: 1.45rem;
}

.stats-grid span {
  color: var(--ink-muted);
  line-height: 1.45;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.section {
  padding: 92px 0;
  background: var(--surface);
}

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

.section__inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section-heading {
  max-width: 800px;
  margin-bottom: 36px;
}

.section-text {
  color: var(--ink-muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.card {
  min-height: 230px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: #fff;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.card__icon {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--accent);
  font-weight: 800;
}

.card p,
.product-list p,
.steps p {
  margin-bottom: 0;
  color: var(--ink-muted);
  line-height: 1.65;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1fr);
  gap: 54px;
  align-items: start;
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  display: grid;
  min-height: 280px;
  align-content: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  background: #fff;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.product-card:hover,
.card:hover,
.steps li:hover {
  border-color: rgba(223, 47, 47, 0.32);
  box-shadow: 0 18px 50px rgba(16, 24, 32, 0.08);
  transform: translateY(-2px);
}

.product-card span {
  margin-bottom: 34px;
  color: var(--accent);
  font-weight: 800;
}

.product-card__number {
  display: flex;
  align-items: center;
  gap: 10px;
}

.product-card__number em {
  border-radius: 999px;
  padding: 4px 8px;
  color: #fff;
  background: #ff8a2a;
  font-size: 0.68rem;
  font-style: normal;
  line-height: 1;
}

.product-card p {
  color: var(--ink-muted);
  line-height: 1.65;
}

.product-card button {
  align-self: end;
  width: max-content;
  margin-top: 24px;
  border: 0;
  border-bottom: 2px solid var(--accent);
  padding: 0 0 4px;
  color: var(--accent);
  background: transparent;
  font-weight: 800;
  text-transform: uppercase;
}

.stock-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.75fr);
  gap: 54px;
  align-items: start;
}

.section--production {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(16, 24, 32, 0.95), rgba(16, 24, 32, 0.82)),
    url("assets/sandwich-panel.jpg") center / cover no-repeat;
}

.section--production .section-text {
  color: rgba(255, 255, 255, 0.74);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  gap: 54px;
  align-items: start;
}

.about-points {
  display: grid;
  gap: 14px;
}

.about-points article {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.07);
}

.about-points strong,
.about-points span {
  display: block;
}

.about-points strong {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.about-points span {
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.55;
}

.production-layout {
  display: grid;
  gap: 8px;
}

.production-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.production-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: #fff;
}

.production-grid article::before {
  display: block;
  width: 38px;
  height: 3px;
  margin-bottom: 28px;
  background: var(--accent);
  content: "";
}

.production-grid p {
  margin-bottom: 0;
  color: var(--ink-muted);
  line-height: 1.65;
}

.stock-table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.stock-table div {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 18px;
  padding: 18px 22px;
}

.stock-table div + div {
  border-top: 1px solid var(--line);
}

.stock-table span {
  color: var(--ink-muted);
  font-weight: 700;
}

.stock-table strong {
  color: var(--ink);
}

.section--estimate {
  color: #fff;
  background: var(--bg-soft);
}

.section--estimate .section-text {
  color: rgba(255, 255, 255, 0.72);
}

.estimate-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.75fr);
  gap: 54px;
  align-items: start;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  color: rgba(255, 255, 255, 0.78);
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--accent);
  content: "+";
  font-weight: 800;
}

.config-steps {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.config-steps div {
  display: grid;
  grid-template-columns: 42px 1fr;
  column-gap: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.06);
}

.config-steps span {
  grid-row: span 2;
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

.config-steps strong {
  color: #fff;
  font-size: 1rem;
}

.config-steps p {
  margin: 5px 0 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.5;
}

.estimator-form {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.06);
}

.estimator-form label {
  display: grid;
  gap: 7px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  font-weight: 700;
}

.product-list {
  display: grid;
  gap: 14px;
}

.product-list article {
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  padding: 22px 24px;
  background: var(--surface-alt);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
  list-style: none;
}

.steps.steps--four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.steps li {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: #fff;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.steps span {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  margin-bottom: 26px;
  border-radius: 50%;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  border-radius: 8px;
  padding: 34px;
  color: #fff;
  background: var(--bg-soft);
  transform: translateY(36px);
}

.cta-band h2 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(360px, 1fr);
  gap: 54px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px 22px;
  background: #fff;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}

.faq-list p {
  margin: 14px 0 0;
  color: var(--ink-muted);
  line-height: 1.65;
}

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.portfolio-filters span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 14px;
  color: var(--ink-muted);
  background: #fff;
  font-size: 0.9rem;
  font-weight: 800;
}

.portfolio-filters span:first-child {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.portfolio-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.portfolio-grid h3,
.portfolio-grid p {
  padding: 0 22px;
}

.portfolio-grid h3 {
  margin-top: 22px;
}

.portfolio-grid p {
  margin-bottom: 22px;
  color: var(--ink-muted);
  line-height: 1.65;
}

.portfolio-image {
  min-height: 210px;
  background:
    linear-gradient(135deg, rgba(16, 24, 32, 0.18), rgba(223, 47, 47, 0.16)),
    url("assets/sandwich-panel.jpg") center / cover no-repeat;
}

.portfolio-image--two {
  background-position: 62% center;
}

.portfolio-image--three {
  background-position: right center;
}

.section--reviews {
  color: #fff;
  background: var(--bg-soft);
}

.section--roof {
  color: #fff;
  background: #0d141b;
}

.section--roof .section-text {
  color: rgba(255, 255, 255, 0.72);
}

.roof-layout {
  display: grid;
  grid-template-columns: minmax(380px, 0.6fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.roof-copy {
  position: sticky;
  top: 120px;
}

.roof-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.roof-results div {
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.06);
}

.roof-results span,
.roof-results strong {
  display: block;
}

.roof-results span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.86rem;
  font-weight: 800;
  text-transform: uppercase;
}

.roof-results strong {
  margin-top: 6px;
  color: #fff;
  font-size: 1.65rem;
}

.roof-tool {
  display: grid;
  gap: 18px;
}

.roof-viewer {
  position: relative;
  min-height: 460px;
  overflow: hidden;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(40, 53, 66, 0.9), rgba(13, 20, 27, 0.96)),
    radial-gradient(circle at 70% 20%, rgba(223, 47, 47, 0.18), transparent 35%);
}

.roof-viewer canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 460px;
}

.roof-viewer::after {
  position: absolute;
  left: 18px;
  bottom: 16px;
  color: rgba(255, 255, 255, 0.58);
  content: "\21BB  Drag rotire  \00B7  \2295  Scroll zoom";
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.roof-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.roof-form fieldset {
  margin: 0;
  border: 0;
  padding: 0;
}

.roof-form legend {
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.86rem;
  font-weight: 800;
  text-transform: uppercase;
}

.cfg-step {
  grid-column: 1 / -1;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin-bottom: 4px;
}

.cfg-step[open] {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(223, 47, 47, 0.4);
}

.cfg-step summary {
  padding: 16px 20px;
  font-size: 0.95rem;
  font-weight: 800;
  color: #fff;
  border-radius: 8px;
  transition: color 200ms ease;
}

.cfg-step[open] summary {
  color: var(--accent);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.cfg-step__inner {
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  animation: details-show 300ms ease-in-out;
}

.cfg-step__inner > * {
  grid-column: span 2;
}

@media (min-width: 600px) {
  .cfg-step__inner .range-label {
    grid-column: span 1;
  }
}

.button--step {
  grid-column: 1 / -1;
  margin-top: 8px;
  min-height: 44px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: transparent;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  transition: all 200ms ease;
}

.button--step:hover {
  background: var(--accent);
  color: #fff;
}

.roof-form__wide {
  grid-column: 1 / -1;
}

.roof-choice-grid {
  grid-column: 1 / -1;
}

.roof-choice-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.roof-choice-grid label {
  position: relative;
  min-height: 70px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.06);
}

.roof-choice-grid input {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.roof-choice-grid span {
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.35;
}

.roof-choice-grid label:has(input:checked) {
  border-color: var(--accent);
  background: rgba(223, 47, 47, 0.22);
}

.roof-form label {
  display: grid;
  gap: 7px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.86rem;
  font-weight: 800;
}

.range-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.range-value {
  color: #fff;
  background: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.roof-form input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  outline: none;
  margin-top: 8px;
  margin-bottom: 12px;
}

.roof-form input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 3px solid #101820;
  box-shadow: 0 0 0 1px var(--accent);
  transition: transform 100ms ease;
}

.roof-form input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.roof-form input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 3px solid #101820;
  box-shadow: 0 0 0 1px var(--accent);
  transition: transform 100ms ease;
}

.roof-form input[type="range"]::-moz-range-thumb:hover {
  transform: scale(1.15);
}

.roof-form input,
.roof-form select {
  min-height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 0 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.roof-form select {
  color-scheme: dark;
}

.roof-form select option {
  color: #101820;
  background: #fff;
}

.roof-form select option:checked {
  color: #fff;
  background: var(--accent);
}

.roof-form input:focus,
.roof-form select:focus {
  outline: 2px solid rgba(223, 47, 47, 0.55);
  outline-offset: 2px;
}

.roof-form .button {
  grid-column: span 3;
}

.section--reviews .section-text {
  color: rgba(255, 255, 255, 0.72);
}

.reviews-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1fr);
  gap: 54px;
}

.reviews-grid {
  display: grid;
  gap: 14px;
}

.reviews-grid article {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.reviews-grid strong {
  display: block;
  margin-bottom: 10px;
}

.reviews-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.65;
}

.section--contacts {
  padding-top: 128px;
  color: #fff;
  background: var(--bg);
}

.contacts {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 46px;
}

.section--contacts .section-text {
  color: rgba(255, 255, 255, 0.72);
}

.contact-actions {
  display: grid;
  gap: 12px;
}

.contact-card {
  display: grid;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 22px;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  text-align: left;
  text-decoration: none;
}

.contact-card span {
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
}

.contact-card strong {
  font-size: 1.2rem;
}

.contact-card--button {
  width: 100%;
}

.site-footer {
  padding: 56px max(24px, calc((100vw - 1180px) / 2)) 86px;
  color: rgba(255, 255, 255, 0.62);
  background: var(--bg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 34px;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid strong {
  display: block;
  margin-bottom: 14px;
  color: #fff;
}

.footer-grid p,
.footer-grid a {
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.65;
}

.footer-grid nav {
  display: grid;
  gap: 8px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
}

.footer-bottom nav {
  display: flex;
  gap: 16px;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
}

.modal.is-open {
  display: flex;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
}

.modal__panel {
  position: relative;
  width: min(480px, 100%);
  max-height: calc(100vh - 44px);
  overflow: auto;
  border-radius: 8px;
  padding: 34px;
  color: #fff;
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
}

.modal__close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: transparent;
  font-size: 1.4rem;
  line-height: 1;
}

.modal__logo {
  display: block;
  width: 112px;
  margin: 0 auto 16px;
}

.modal h2 {
  margin-bottom: 8px;
  text-align: center;
  font-size: 1.45rem;
  text-transform: uppercase;
}

.modal__intro {
  margin-bottom: 22px;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
  line-height: 1.55;
}

.offer-form {
  display: grid;
  gap: 14px;
}

.offer-form label {
  display: grid;
  gap: 7px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  font-weight: 700;
}

.offer-form input {
  width: 100%;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--field);
}

.offer-form textarea {
  color: var(--ink);
  background: var(--field);
}

.offer-form input:focus {
  outline: 2px solid rgba(223, 47, 47, 0.55);
  outline-offset: 2px;
}

.checkbox {
  grid-template-columns: 18px 1fr;
  align-items: start;
  gap: 10px;
  margin: 4px 0 8px;
}

.checkbox input {
  min-height: auto;
  margin-top: 2px;
}

.button--form {
  width: 100%;
}

.mobile-cta {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 6;
  display: none;
  grid-template-columns: 1fr 1fr 1fr;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.24);
}

.mobile-cta a,
.mobile-cta button {
  min-height: 52px;
  border: 0;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
}

.mobile-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
}

.floating-messengers {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.floating-messengers__group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px) scale(0.8);
  transform-origin: bottom center;
  transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-messengers:hover .floating-messengers__group {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.floating-messengers__toggle {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 35px rgba(16, 24, 32, 0.22);
  cursor: pointer;
  z-index: 2;
  transition: transform 200ms ease;
}

.floating-messengers:hover .floating-messengers__toggle {
  transform: scale(0.9);
}

body.ai-chat-open .floating-messengers {
  opacity: 0;
  pointer-events: none;
}

.floating-messengers__toggle svg {
  width: 28px;
  height: 28px;
}

.ai-chat {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1200;
}

.ai-chat__toggle {
  position: relative;
  display: inline-flex;
  width: 62px;
  min-width: 62px;
  height: 62px;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  padding: 0 16px;
  color: #fff;
  background: linear-gradient(105deg, #303942 0%, #df2f2f 58%, #a81717 100%);
  box-shadow: 0 14px 34px rgba(168, 23, 23, 0.32);
  font-size: 1.15rem;
  font-weight: 800;
  white-space: nowrap;
  transition: width 220ms ease, gap 220ms ease, padding 220ms ease, box-shadow 220ms ease;
}

.ai-chat__toggle span {
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-width 220ms ease, opacity 160ms ease;
}

.ai-chat__toggle:hover,
.ai-chat__toggle:focus-visible {
  width: 224px;
  gap: 18px;
  padding: 0 22px 0 26px;
  box-shadow: 0 18px 42px rgba(168, 23, 23, 0.4);
}

.ai-chat__toggle:hover span,
.ai-chat__toggle:focus-visible span {
  max-width: 150px;
  opacity: 1;
}

.ai-chat__toggle svg {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
}

.ai-chat__toggle::after {
  position: absolute;
  inset: -4px;
  border: 1px solid rgba(223, 47, 47, 0.3);
  border-radius: 999px;
  animation: aiPulse 2.4s ease-out infinite;
  content: "";
}

.ai-chat__channel-menu {
  position: absolute;
  right: 0;
  bottom: 76px;
  display: none;
  width: 252px;
  padding: 18px 16px 16px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 12px;
  color: #e5e7eb;
  background: #111820;
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.42);
}

.ai-chat.is-menu-open .ai-chat__channel-menu {
  display: grid;
  gap: 8px;
  animation: aiPanelIn 0.22s ease forwards;
}

.ai-chat.is-menu-open .ai-chat__toggle {
  width: 62px;
  min-width: 62px;
  padding: 0 16px;
  gap: 0;
}

.ai-chat.is-menu-open .ai-chat__toggle span {
  max-width: 0;
  opacity: 0;
}

.ai-chat__channel-menu > strong {
  font-size: 1rem;
}

.ai-chat__channel-menu > span {
  margin-bottom: 7px;
  color: #9ca3af;
  font-size: 0.82rem;
}

.ai-chat__channel-menu a,
.ai-chat__channel-menu button {
  display: grid;
  min-height: 48px;
  grid-template-columns: 30px 1fr auto;
  align-items: center;
  gap: 10px;
  border: 1px solid #35404c;
  border-radius: 8px;
  padding: 7px 10px;
  color: #e5e7eb;
  background: #19222c;
  font: inherit;
  text-align: left;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease;
}

.ai-chat__channel-menu a:hover,
.ai-chat__channel-menu button:hover {
  border-color: #df2f2f;
  background: #222c37;
}

.ai-chat__channel-menu b {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 7px;
  color: #fff;
  background: #df2f2f;
  font-size: 0.72rem;
  font-style: normal;
}

.ai-chat__channel-menu b svg {
  width: 19px;
  height: 19px;
}

.ai-chat__channel-menu .ai-chat__channel-whatsapp {
  background: #22c55e;
}

.ai-chat__channel-menu .ai-chat__channel-viber {
  background: #7360f2;
}

.ai-chat__channel-menu .ai-chat__channel-telegram {
  background: #229ed9;
}

.ai-chat__channel-menu i {
  color: #9ca3af;
  font-size: 1.35rem;
  font-style: normal;
}

.ai-chat__panel {
  position: absolute;
  right: 0;
  bottom: 76px;
  display: none;
  width: min(430px, calc(100vw - 28px));
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: linear-gradient(180deg, #111820 0%, #0c1219 100%);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
  transform: translateY(12px) scale(0.98);
  transform-origin: right bottom;
  opacity: 0;
}

.ai-chat.is-open .ai-chat__panel {
  display: block;
  animation: aiPanelIn 0.22s ease forwards;
}

.ai-chat__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px;
  color: #fff;
  background: linear-gradient(135deg, #0b1117 0%, #17212b 100%);
}

.ai-chat__avatar {
  display: inline-flex;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #df2f2f, #7c1515);
  box-shadow: 0 12px 28px rgba(223, 47, 47, 0.28);
  font-size: 0.78rem;
  font-weight: 900;
}

.ai-chat__header strong,
.ai-chat__header span {
  display: block;
}

.ai-chat__header > div {
  min-width: 0;
  flex: 1 1 auto;
}

.ai-chat__header span {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

.ai-chat__status {
  position: relative;
  border-radius: 999px;
  padding: 5px 9px 5px 18px;
  color: #8ff0b0;
  background: rgba(34, 197, 94, 0.12);
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 900;
  text-transform: uppercase;
  white-space: nowrap;
}

.ai-chat__status::before {
  position: absolute;
  top: 50%;
  left: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.16);
  transform: translateY(-50%);
  content: "";
}

.ai-chat__close {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.ai-chat__messages {
  display: grid;
  max-height: 360px;
  min-height: 230px;
  gap: 10px;
  overflow: auto;
  padding: 16px;
}

.ai-chat__message {
  width: fit-content;
  max-width: 88%;
  border-radius: 10px;
  padding: 10px 12px;
  line-height: 1.45;
  animation: aiMessageIn 0.18s ease both;
}

.ai-chat__message span,
.ai-chat__message small {
  display: block;
}

.ai-chat__message small {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.68rem;
  text-align: right;
}

.ai-chat__message--bot {
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.1);
}

.ai-chat__message--user {
  justify-self: end;
  color: #fff;
  background: var(--accent);
}

.ai-chat__message--system {
  justify-self: center;
  color: rgba(255, 255, 255, 0.7);
  background: transparent;
  font-size: 0.86rem;
}

.ai-chat__message--typing {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.1);
}

.ai-chat__crm-card {
  width: min(100%, 320px);
  justify-self: start;
  border: 1px solid rgba(60, 180, 255, 0.28);
  border-radius: 10px;
  padding: 12px;
  color: rgba(255, 255, 255, 0.9);
  background:
    linear-gradient(135deg, rgba(24, 35, 54, 0.96), rgba(8, 15, 28, 0.96)),
    rgba(255, 255, 255, 0.06);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
  animation: aiMessageIn 0.18s ease both;
}

.ai-chat__crm-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
}

.ai-chat__crm-card-head strong {
  color: #8ddcff;
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ai-chat__crm-card-head button {
  min-height: 28px;
  border: 1px solid rgba(60, 180, 255, 0.28);
  border-radius: 7px;
  padding: 0 9px;
  color: #bcecff;
  background: rgba(60, 180, 255, 0.12);
  font-size: 0.72rem;
  font-weight: 800;
}

.ai-chat__crm-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 8px;
  padding: 3px 0;
  font-size: 0.78rem;
}

.ai-chat__crm-row span {
  color: rgba(255, 255, 255, 0.48);
}

.ai-chat__crm-row b {
  min-width: 0;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.ai-chat__message .ai-chat__typing {
  display: inline-flex;
  gap: 5px;
  align-items: center;
  min-width: 42px;
  min-height: 18px;
}

.ai-chat__typing i {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.78);
  animation: aiTyping 1s ease-in-out infinite;
}

.ai-chat__typing i:nth-child(2) {
  animation-delay: 0.14s;
}

.ai-chat__typing i:nth-child(3) {
  animation-delay: 0.28s;
}

.ai-chat__manager {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 10px 12px 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.76rem;
}

.ai-chat__manager strong {
  border-radius: 999px;
  padding: 5px 8px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.72rem;
  font-weight: 900;
}

.ai-chat__quick-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px;
}

.ai-chat__tools {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px 12px 0;
}

.ai-chat__tools a,
.ai-chat__tools button {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 0 8px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.78rem;
  font-weight: 900;
  text-decoration: none;
}

.ai-chat__tools a:hover,
.ai-chat__tools button:hover {
  border-color: rgba(223, 47, 47, 0.55);
  background: rgba(223, 47, 47, 0.18);
}

.ai-chat__lead {
  display: none;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.ai-chat__lead.is-open {
  display: grid;
}

.ai-chat__lead div {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 8px;
}

.ai-chat__lead input {
  min-height: 40px;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 0 10px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.ai-chat__lead input::placeholder {
  color: rgba(255, 255, 255, 0.52);
}

.ai-chat__lead button {
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  font-weight: 900;
}

.ai-chat__quick-menu button {
  min-height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 0 11px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.07);
  font-size: 0.82rem;
  font-weight: 800;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.ai-chat__quick-menu button:hover {
  border-color: rgba(223, 47, 47, 0.55);
  background: rgba(223, 47, 47, 0.18);
  transform: translateY(-1px);
}

.ai-chat__form {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px;
}

.ai-chat__form input {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
}

.ai-chat__form button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  padding: 0 14px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

.ai-chat__form input:disabled,
.ai-chat__form button:disabled {
  cursor: wait;
  opacity: 0.66;
}

.ai-chat__form .ai-chat__reset {
  width: 44px;
  padding: 0;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.1);
  font-size: 1.05rem;
}

.ai-chat__avatar svg,
.ai-chat__phone svg,
.ai-chat__send svg {
  width: 18px;
  height: 18px;
}

.ai-chat__phone {
  display: inline-flex;
  min-height: 38px;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(59, 130, 246, 0.8);
  border-radius: 10px;
  padding: 0 13px;
  color: #8cc7ff;
  background: rgba(29, 78, 216, 0.18);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.ai-chat__phone:hover {
  color: #d8efff;
  background: rgba(37, 99, 235, 0.28);
}

.ai-chat.is-open .ai-chat__panel {
  display: flex;
}

.ai-chat.is-open .ai-chat__toggle {
  display: none;
}

.ai-chat__panel {
  width: min(540px, calc(100vw - 20px));
  height: min(560px, calc(100vh - 28px));
  flex-direction: column;
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 18px;
  background: #0f172a;
  box-shadow: 0 30px 90px rgba(2, 6, 23, 0.5);
}

.ai-chat__header {
  min-height: 98px;
  padding: 24px 24px 18px;
  background: #111a2d;
}

.ai-chat__avatar {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border: 0;
  border-radius: 13px;
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  box-shadow: none;
}

.ai-chat__header > .ai-chat__avatar {
  flex: 0 0 46px;
}

.ai-chat__header strong {
  font-size: 1.08rem;
  line-height: 1.15;
}

.ai-chat__header span {
  position: relative;
  margin-top: 5px;
  padding-left: 12px;
  color: #38bdf8;
  font-size: 0;
  font-weight: 700;
}

.ai-chat__header span::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  transform: translateY(-50%);
  content: "";
}

.ai-chat__header span::after {
  font-size: 0.82rem;
  content: "Consultant · online";
}

.ai-chat__status,
.ai-chat__manager,
.ai-chat__tools,
.ai-chat__lead,
.ai-chat__form .ai-chat__reset {
  display: none;
}

.ai-chat__close {
  display: inline-flex;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: rgba(226, 232, 240, 0.78);
  background: rgba(148, 163, 184, 0.12);
  font-size: 1rem;
}

.ai-chat__close:hover {
  color: #fff;
  background: rgba(148, 163, 184, 0.22);
}

.ai-chat__messages {
  position: relative;
  flex: 1 1 auto;
  max-height: none;
  min-height: 0;
  align-content: start;
  align-items: start;
  gap: 12px;
  padding: 20px 30px 12px 76px;
  background: #0f172a;
}

.ai-chat__message {
  position: relative;
  max-width: min(78%, 566px);
  border-radius: 15px;
  padding: 14px 18px;
  line-height: 1.62;
}

.ai-chat__message span {
  white-space: pre-wrap;
}

.ai-chat__message small {
  display: none;
}

.ai-chat__message--bot,
.ai-chat__message--typing {
  border: 1px solid #334155;
  color: #e8f1ff;
  background: #1e293b;
}

.ai-chat__message--bot::before,
.ai-chat__message--typing::before {
  position: absolute;
  left: -48px;
  bottom: 9px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  background: #1d75f0;
  content: "AI";
  font-size: 0.68rem;
  font-weight: 900;
}

.ai-chat__message--user {
  border-radius: 15px 15px 4px 15px;
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

.ai-chat__quick-menu {
  gap: 8px;
  border-top: 0;
  padding: 0 30px 26px 76px;
  background: #0f172a;
}

.ai-chat__quick-menu button {
  min-height: 40px;
  border-color: #334155;
  border-radius: 10px;
  padding: 0 15px;
  color: #a9b5c6;
  background: transparent;
  font-size: 0.93rem;
  font-weight: 600;
}

.ai-chat__quick-menu button:hover {
  border-color: #3b82f6;
  color: #bfdbfe;
  background: rgba(30, 58, 95, 0.8);
}

.ai-chat__form {
  position: relative;
  grid-template-columns: 1fr auto;
  gap: 10px;
  border-top: 1px solid rgba(30, 41, 59, 0.9);
  padding: 15px 30px 49px;
  background: #0f172a;
}

.ai-chat__form::after {
  position: absolute;
  right: 0;
  bottom: 24px;
  left: 0;
  color: #334155;
  font-size: 0.78rem;
  text-align: center;
  content: "TEHNOFASAD · Bălți, str. Lev Dovator 1 · +373 791 55 791";
  pointer-events: none;
}

.ai-chat__form input {
  min-height: 52px;
  border: 1px solid #334155;
  border-radius: 11px;
  padding: 0 18px;
  color: #e2e8f0;
  background: #1e293b;
  font-size: 1rem;
}

.ai-chat__form input::placeholder {
  color: #94a3b8;
}

.ai-chat__form button.ai-chat__send {
  width: 54px;
  min-height: 52px;
  border-radius: 12px;
  padding: 0;
  color: #536174;
  background: #1e293b;
}

.ai-chat__form button.ai-chat__send:hover {
  color: #fff;
  background: #2563eb;
}

@keyframes aiPanelIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes aiMessageIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes aiTyping {
  0%,
  70%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

@keyframes aiPulse {
  0% {
    opacity: 0.9;
    transform: scale(0.92);
  }
  100% {
    opacity: 0;
    transform: scale(1.24);
  }
}

.floating-messengers__link {
  position: relative;
  display: flex;
  width: 50px;
  height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(16, 24, 32, 0.15);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.floating-messengers__link:hover {
  transform: translateX(-3px);
  box-shadow: 0 18px 45px rgba(16, 24, 32, 0.28);
}

.floating-messengers__link span {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  border-radius: 999px;
  padding: 7px 10px;
  color: #fff;
  background: rgba(16, 24, 32, 0.92);
  font-size: 0.78rem;
  font-weight: 800;
  opacity: 0;
  pointer-events: none;
  transform: translate(6px, -50%);
  transition: opacity 160ms ease, transform 160ms ease;
}

.floating-messengers__link:hover span,
.floating-messengers__link:focus span {
  opacity: 1;
  transform: translate(0, -50%);
}

.floating-messengers__link svg {
  width: 30px;
  height: 30px;
  fill: currentColor;
}

.floating-messengers__link--telegram {
  background: #229ed9;
}

.floating-messengers__link--whatsapp {
  background: #25d366;
}

.floating-messengers__link--viber {
  background: #7360f2;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    width: min(320px, 85vw);
    padding: 80px 28px 34px;
    background: rgba(10, 15, 21, 0.97);
    backdrop-filter: blur(18px);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
  }

  .main-nav.is-open {
    transform: translateX(0);
    pointer-events: auto;
  }

  .main-nav a {
    width: 100%;
    padding: 12px 0;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-dropdown__menu {
    position: static;
    display: grid;
    min-width: 0;
    padding: 0 0 0 18px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .nav-dropdown__menu a {
    color: rgba(255, 255, 255, 0.72);
    padding: 8px 0;
    font-size: 0.92rem;
  }

  .nav-dropdown__trigger::after {
    display: none;
  }

  .benefit-grid,
  .steps,
  .steps--four,
  .product-layout,
  .contacts,
  .hero__inner--split,
  .estimate-layout,
  .stock-layout,
  .faq-layout,
  .about-layout,
  .roof-layout,
  .reviews-layout {
    grid-template-columns: 1fr;
  }

  .roof-copy {
    position: static;
  }

  .benefit-grid,
  .product-cards,
  .production-grid,
  .portfolio-grid,
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1180px) {
  .main-nav {
    gap: 10px;
    font-size: 0.78rem;
  }

  .social-links__item {
    width: 28px;
    height: 28px;
  }

  .header-cta {
    display: none;
  }
}

@media (max-height: 760px) and (min-width: 721px) {
  .site-header {
    min-height: 50px;
    padding-top: 6px;
    padding-bottom: 6px;
  }

  .brand img {
    width: 68px;
  }

  .main-nav {
    font-size: 0.82rem;
  }

  .header-cta {
    display: none;
  }

  .hero__inner {
    padding-top: 104px;
    padding-bottom: 28px;
  }

  h1 {
    max-width: 620px;
    margin-bottom: 14px;
    font-size: clamp(2.5rem, 4.6vw, 4.45rem);
    line-height: 0.98;
  }

  .lead {
    max-width: 590px;
    font-size: 1rem;
    line-height: 1.45;
  }

  .actions {
    margin-top: 18px;
  }

  .button {
    min-height: 46px;
    padding: 0 22px;
  }

  .hero-facts {
    margin-top: 20px;
  }
}

@media (max-width: 720px) {
  .top-strip {
    display: none;
  }

  .site-header {
    top: 0;
    min-height: 54px;
    padding: 8px 14px;
  }

  .brand img {
    width: 76px;
  }

  .header-phone {
    font-size: 0.86rem;
  }

  .language-switch {
    order: 2;
  }

  .language-switch button {
    min-height: 32px;
    padding: 0 8px;
  }

  .header-cta {
    display: none;
  }

  .social-links {
    display: none;
  }

  .hero__overlay {
    background: rgba(4, 9, 15, 0.76);
  }

  .hero__inner {
    width: min(100% - 28px, 1180px);
    padding: 88px 0 48px;
  }

  h1 {
    font-size: clamp(2.6rem, 14vw, 4.2rem);
  }

  .actions,
  .button,
  .button--outline {
    width: 100%;
  }

  .hero-facts,
  .benefit-grid,
  .product-cards,
  .production-grid,
  .portfolio-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stock-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .section {
    padding: 64px 0;
  }

  .section__inner,
  .cta-band {
    width: min(100% - 28px, 1180px);
  }

  .card {
    min-height: auto;
  }

  .cta-band {
    display: grid;
    padding: 26px 20px;
  }

  .section--contacts {
    padding-top: 96px;
  }

  .site-footer {
    display: grid;
    padding: 24px 14px 82px;
  }

  .roof-viewer,
  .roof-viewer canvas {
    min-height: 330px;
  }

  .roof-form {
    grid-template-columns: 1fr;
  }

  .roof-form .button {
    grid-column: auto;
  }

  .roof-results,
  .roof-choice-grid {
    grid-template-columns: 1fr;
  }

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

  .modal__panel {
    padding: 30px 20px 22px;
  }

  .mobile-cta {
    display: grid;
  }

  .floating-messengers {
    right: 10px;
    gap: 10px;
  }

  .floating-messengers__link {
    width: 48px;
    height: 48px;
  }

  .floating-messengers__link span {
    display: none;
  }

  .ai-chat {
    right: 10px;
    bottom: 76px;
  }

  .ai-chat__toggle {
    width: 52px;
    min-width: 52px;
    height: 52px;
    padding: 0 13px;
    font-size: 1rem;
  }

  .ai-chat__toggle:hover,
  .ai-chat__toggle:focus-visible {
    width: 184px;
    gap: 12px;
    padding: 0 16px 0 20px;
  }

  .ai-chat__toggle svg {
    width: 26px;
    height: 26px;
    flex-basis: 26px;
  }

  .ai-chat__panel {
    bottom: 64px;
  }

  .ai-chat__channel-menu {
    bottom: 64px;
    width: min(252px, calc(100vw - 20px));
  }

  .ai-chat.is-menu-open .ai-chat__toggle {
    width: 52px;
    min-width: 52px;
    padding: 0 13px;
  }

  .ai-chat__tools {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-chat__lead div {
    grid-template-columns: 1fr;
  }
}

.portfolio-filters button {
  background: transparent;
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 30px;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 200ms ease;
  font-weight: 600;
  margin-right: 8px;
}

.portfolio-filters button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.portfolio-filters button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.portfolio-item.hidden {
  display: none !important;
}

.portfolio-image {
  position: relative;
}

.portfolio-badges {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  gap: 8px;
}

.badge {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
}

.badge--dark {
  background: rgba(16, 24, 32, 0.85);
}

.badge--accent {
  background: var(--accent);
}

.review-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.review-stars {
  color: #fbbf24;
  font-size: 1.2rem;
  letter-spacing: 2px;
}

.review-author {
  margin-top: auto;
  display: flex;
  flex-direction: column;
}

.review-author span {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 600ms ease, transform 600ms ease;
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Premium FAQ Accordion */
details {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: background 200ms ease;
}

details:hover {
  background: rgba(255, 255, 255, 0.06);
}

summary {
  padding: 18px 24px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  position: relative;
  color: var(--text);
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--accent);
  transition: transform 300ms ease;
}

details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

details p {
  padding: 0 24px 20px;
  margin: 0;
  color: var(--ink-muted);
  animation: details-show 300ms ease-in-out;
}

@keyframes details-show {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Premium Portfolio Hover */
.portfolio-item {
  overflow: hidden;
  border-radius: 8px;
}

.portfolio-image {
  transition: transform 400ms ease;
}

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