/* Serhii Appliances Services — mobile-first site styles */

:root {
  --ink: #0d1b2a;
  --ink-muted: #3d4a5c;
  --paper: #f6f7f9;
  --paper-deep: #e8edf3;
  --card: #ffffff;
  --line: #c9d2de;
  --navy: #00234e;
  --forest: #00234e;
  --forest-mid: #0a3a73;
  --accent: #f17d21;
  --copper: #9a3f0a;
  --copper-deep: #7a3108;
  --focus: #1d4ed8;
  --danger: #8a1f1f;
  --ok: #14532d;
  --shadow: 0 10px 30px rgba(0, 35, 78, 0.1);
  --radius: 14px;
  --max: 70rem;
  --font: "Source Sans 3", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: "Source Serif 4", "Iowan Old Style", Palatino, Georgia, serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html:focus-within {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--copper);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--copper-deep);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
}

.skip-link:focus {
  top: 0.75rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.wrap {
  width: min(100% - 1.75rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(246, 247, 249, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 7.75rem;
  padding-block: 0.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--ink);
}

.logo-mark {
  width: auto;
  height: 7.15rem;
  flex-shrink: 0;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--navy);
  text-decoration: none;
  white-space: nowrap;
}

.header-phone:hover {
  color: var(--copper);
}

.social-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 999px;
  color: var(--navy);
  background: var(--card);
  border: 1px solid var(--line);
  text-decoration: none;
}

.social-links a:hover {
  color: #fff;
  background: var(--navy);
  border-color: var(--navy);
}

.social-links svg {
  width: 1.15rem;
  height: 1.15rem;
  display: block;
}

.footer-social.social-links a {
  color: #f3efe4;
  background: transparent;
  border-color: rgba(243, 239, 228, 0.28);
}

.footer-social.social-links a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text strong {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 650;
}

.logo-text span {
  font-size: 0.78rem;
  color: var(--ink-muted);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 10px;
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle[aria-expanded="true"] {
  background: var(--paper-deep);
}

.site-nav {
  display: none;
}

.site-nav.open {
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 0.75rem 0 1rem;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0 0.9rem;
  display: grid;
  gap: 0.25rem;
}

.site-nav a {
  display: block;
  padding: 0.7rem 0.85rem;
  text-decoration: none;
  color: var(--ink);
  border-radius: 10px;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--paper-deep);
}

.nav-cta {
  background: var(--forest) !important;
  color: #fff !important;
  text-align: center;
}

.hero {
  padding: 2.4rem 0 3rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy);
  background: var(--card);
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 650;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 7vw, 3.35rem);
}

h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.7rem, 4vw, 2.25rem);
}

h3 {
  margin: 0 0 0.4rem;
  font-size: 1.2rem;
}

.lede,
.section-intro {
  margin: 0 0 1.25rem;
  color: var(--ink-muted);
  font-size: 1.125rem;
  max-width: 42rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.4rem 0 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.65rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--copper);
  color: #fff;
}

.btn-primary:hover {
  background: var(--copper-deep);
  color: #fff;
}

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

.btn-secondary:hover {
  background: var(--ink);
  color: var(--paper);
}

.hero-meta {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.free-note {
  margin: 0 0 0.65rem;
  font-weight: 700;
  color: var(--navy);
}

.hero-visual {
  position: relative;
  border-radius: calc(var(--radius) + 4px);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 16rem;
}

.hero-photo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.hero-visual-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 1.1rem 1.15rem 1rem;
  background: linear-gradient(transparent, rgba(0, 35, 78, 0.88));
  color: #f6f7f9;
  font-weight: 700;
}

.hero-card {
  background: var(--forest);
  color: #f3efe4;
  border-radius: calc(var(--radius) + 4px);
  padding: 1.4rem 1.3rem 1.5rem;
  box-shadow: var(--shadow);
}

.hero-card h2 {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
}

.hero-card p {
  margin: 0 0 0.85rem;
  color: #d7e0db;
}

.radius-visual {
  display: grid;
  place-items: center;
  margin: 1rem 0 0.4rem;
  min-height: 10.5rem;
}

.rings {
  width: min(100%, 16rem);
  aspect-ratio: 1;
}

.city-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.city-pills li {
  background: rgba(255, 253, 248, 0.1);
  border: 1px solid rgba(243, 239, 228, 0.2);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  font-size: 0.85rem;
}

.trust {
  padding: 0 0 2.5rem;
}

.trust-grid {
  display: grid;
  gap: 0.75rem;
}

.trust-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.trust-item strong {
  display: block;
  margin-bottom: 0.2rem;
}

.section {
  padding: 2.75rem 0;
}

.section-alt {
  background: var(--paper-deep);
}

.services-grid {
  display: grid;
  gap: 0.85rem;
}

.service-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 0 1.15rem;
  overflow: hidden;
}

.service-photo {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin-bottom: 0.9rem;
}

.service-card h3,
.service-card p {
  padding-inline: 1.15rem;
}

.service-card svg {
  display: block;
  margin: 1.15rem 1.15rem 0.7rem;
}

.service-card p {
  margin: 0;
  color: var(--ink-muted);
}

.install-note {
  margin-top: 1.25rem;
  padding: 0;
  border-left: 4px solid var(--copper);
  background: var(--card);
  display: grid;
  gap: 0;
  overflow: hidden;
  border-radius: var(--radius);
}

.install-note img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.install-note h3,
.install-note p {
  padding-inline: 1.15rem;
}

.install-note h3 {
  margin-top: 1rem;
}

.install-note p {
  padding-bottom: 1.1rem;
}

.how-visual {
  display: grid;
  gap: 1.25rem;
}

.how-visual img {
  width: 100%;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.area-layout {
  display: grid;
  gap: 1.5rem;
}

.area-list {
  margin: 0;
  padding-left: 1.15rem;
}

.area-list li + li {
  margin-top: 0.45rem;
}

.area-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
}

.area-panel h3 {
  margin-top: 0;
}

.city-group-label {
  margin: 1.1rem 0 0.45rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.city-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.5rem;
  list-style: none;
  margin: 0 0 0.35rem;
  padding: 0;
}

.city-links a {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  text-decoration: none;
  color: var(--navy);
  font-weight: 600;
  font-size: 0.95rem;
}

.city-links a:hover {
  border-color: var(--accent);
  color: var(--copper-deep);
}

.city-links-compact {
  display: grid;
  gap: 0.35rem;
}

.city-links-compact a {
  border-radius: 8px;
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

.brand-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 5.4rem;
  padding: 0.85rem 1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.brand-card img {
  display: block;
  width: auto;
  max-width: 9.5rem;
  max-height: 2.65rem;
  height: auto;
  object-fit: contain;
}

.brands-note {
  margin: 0;
  max-width: 46rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.crumbs {
  margin: 0 0 0.85rem;
  font-size: 0.92rem;
  color: var(--ink-muted);
}

.crumbs a {
  color: var(--copper);
}

.location-layout {
  display: grid;
  gap: 1.5rem;
}

.location-aside h2 {
  font-size: 1.25rem;
}

.location-aside h3 {
  margin-top: 1.1rem;
}

.steps {
  display: grid;
  gap: 0.85rem;
  counter-reset: step;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem 1.15rem 4.1rem;
  position: relative;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1.1rem;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--forest);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.form-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px);
  padding: 1.25rem 1.15rem 1.4rem;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  gap: 0.9rem;
}

label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.hint {
  font-weight: 500;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

input,
select,
textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid #b9b09a;
  border-radius: 10px;
  padding: 0.7rem 0.75rem;
  min-height: 2.75rem;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

input:user-invalid,
select:user-invalid,
textarea:user-invalid,
.field-error {
  border-color: var(--danger);
}

.form-status {
  display: none;
  margin: 0 0 0.9rem;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
}

.form-status.is-visible {
  display: block;
}

.form-status[data-tone="ok"] {
  background: #ecfdf3;
  color: var(--ok);
  border: 1px solid #86efac;
}

.form-status[data-tone="error"] {
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fecaca;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.faq {
  display: grid;
  gap: 0.7rem;
}

.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
}

.faq summary {
  font-weight: 700;
  cursor: pointer;
}

.faq p {
  margin: 0.6rem 0 0.15rem;
  color: var(--ink-muted);
}

.page-hero {
  padding: 2.2rem 0 1.4rem;
}

.site-footer {
  background: var(--forest);
  color: #e7eee9;
  padding: 2.4rem 0 1.4rem;
}

.site-footer a {
  color: #f3d2c3;
}

.footer-grid {
  display: grid;
  gap: 1.4rem;
}

.footer-brand strong {
  font-family: var(--serif);
  font-size: 1.2rem;
}

.footer-brand p,
.nap {
  margin: 0.45rem 0 0;
  color: #c5d2cc;
}

.nap {
  font-style: normal;
}

.footer-col h2 {
  font-family: var(--font);
  font-size: 0.86rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 0 0 0.55rem;
  color: #d7e0db;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li + li {
  margin-top: 0.35rem;
}

.hidden {
  display: none !important;
}

.fine-print {
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(231, 238, 233, 0.18);
  color: #b7c6bf;
  font-size: 0.9rem;
}

@media (max-width: 520px) {
  .social-links-header {
    display: none;
  }
}

@media (min-width: 760px) {
  .header-inner {
    min-height: 6.25rem;
  }

  .logo-mark {
    height: 5.15rem;
  }

  .header-phone {
    font-size: 1rem;
  }

  .logo {
    order: 1;
  }

  .site-nav {
    order: 2;
    flex: 1;
  }

  .site-nav ul {
    justify-content: flex-end;
  }

  .header-tools {
    order: 3;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block;
    position: static;
    background: none;
    border: 0;
    padding: 0;
  }

  .site-nav ul {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0;
  }

  .site-nav a {
    padding: 0.45rem 0.7rem;
    font-size: 0.95rem;
  }

  .brand-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero-grid,
  .area-layout,
  .location-layout,
  .footer-grid,
  .split {
    grid-template-columns: 1.15fr 0.85fr;
  }

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

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

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

  .two-col {
    grid-template-columns: 1fr 1fr;
  }

  .install-note {
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
  }

  .install-note img {
    aspect-ratio: 4 / 3;
    height: 100%;
  }

  .how-visual {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

@media (min-width: 980px) {
  .brand-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

  .footer-grid {
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  }
}