/* ===== AC Service in Noida — Shared Styles ===== */
:root {
  --brand: #0a6cff;
  --brand-dark: #0048b3;
  --accent: #00b8a9;
  --ink: #14213d;
  --muted: #5b6478;
  --bg: #ffffff;
  --bg-soft: #f4f8ff;
  --line: #e3e9f2;
  --warn: #ff7a00;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(16, 42, 90, 0.08);
  --maxw: 1140px;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
}

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

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

h1, h2, h3 { line-height: 1.25; color: var(--ink); margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

/* ===== Top bar ===== */
.topbar {
  background: var(--ink);
  color: #cfe0ff;
  font-size: .9rem;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 8px;
  padding-bottom: 8px;
}
.topbar a { color: #fff; font-weight: 600; }

/* ===== Header / Nav ===== */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--ink); }
.logo:hover { text-decoration: none; }
.logo .dot { width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, var(--brand), var(--accent)); display: grid; place-items: center; color: #fff; font-size: 1.1rem; }
.logo small { display: block; font-size: .7rem; font-weight: 600; color: var(--muted); letter-spacing: .5px; }

.menu { display: flex; gap: 6px; align-items: center; list-style: none; margin: 0; padding: 0; }
.menu a { color: var(--ink); font-weight: 600; padding: 8px 12px; border-radius: 8px; font-size: .98rem; }
.menu a:hover, .menu a.active { background: var(--bg-soft); color: var(--brand-dark); text-decoration: none; }

.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
  box-shadow: 0 6px 18px rgba(10, 108, 255, .3);
}
.btn:hover { transform: translateY(-2px); text-decoration: none; color: #fff; box-shadow: 0 10px 24px rgba(10, 108, 255, .38); }
.btn.ghost { background: #fff; color: var(--brand-dark); border: 2px solid var(--brand); box-shadow: none; }
.btn.accent { background: var(--accent); box-shadow: 0 6px 18px rgba(0, 184, 169, .3); }

.nav-toggle { display: none; background: none; border: 0; font-size: 1.6rem; cursor: pointer; color: var(--ink); }

/* ===== Hero ===== */
.hero {
  background: radial-gradient(1200px 500px at 80% -10%, #e4f0ff, transparent),
              linear-gradient(180deg, var(--bg-soft), #fff);
  padding: 70px 0 60px;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.hero .eyebrow { display: inline-block; background: #e2ecff; color: var(--brand-dark); font-weight: 700; font-size: .85rem; padding: 6px 14px; border-radius: 999px; margin-bottom: 16px; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 38ch; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.hero-art {
  background: linear-gradient(135deg, var(--brand), var(--accent));
  border-radius: 24px;
  min-height: 320px;
  display: grid;
  place-items: center;
  color: #fff;
  text-align: center;
  padding: 30px;
  box-shadow: var(--shadow);
}
.hero-art .big { font-size: 4rem; }
.trust { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 30px; }
.trust div { font-weight: 700; }
.trust span { display: block; font-size: .82rem; color: var(--muted); font-weight: 600; }
.trust strong { font-size: 1.6rem; color: var(--brand-dark); }

/* ===== Sections ===== */
section { padding: 60px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 60ch; margin: 0 auto 40px; }
.section-head p { color: var(--muted); }

/* ===== Cards / grids ===== */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .ico { font-size: 2rem; margin-bottom: 10px; }
.card h3 { margin-bottom: .4em; }
.card p { color: var(--muted); font-size: .98rem; margin-bottom: .6em; }
.card a.more { font-weight: 700; }

.pill-list { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.pill-list li { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-weight: 600; font-size: .92rem; }

.check-list { list-style: none; padding: 0; }
.check-list li { padding: 8px 0 8px 32px; position: relative; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 8px; color: var(--accent); font-weight: 900; }

/* ===== Steps ===== */
.steps { counter-reset: step; }
.steps .card { position: relative; padding-top: 40px; }
.steps .card::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; top: -18px; left: 24px;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 800;
  box-shadow: 0 6px 14px rgba(10,108,255,.35);
}

/* ===== Testimonials ===== */
.quote { font-style: italic; color: var(--ink); }
.quote .who { font-style: normal; font-weight: 700; color: var(--brand-dark); margin-top: 10px; }
.stars { color: var(--warn); letter-spacing: 2px; }

/* ===== CTA band ===== */
.cta-band {
  background: linear-gradient(120deg, var(--brand-dark), var(--brand));
  color: #fff;
  text-align: center;
  border-radius: 0;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: #d7e6ff; }

/* ===== FAQ ===== */
details.faq {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 16px 20px; margin-bottom: 12px;
}
details.faq summary { font-weight: 700; cursor: pointer; list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; float: right; color: var(--brand); font-weight: 900; }
details.faq[open] summary::after { content: "–"; }
details.faq p { color: var(--muted); margin: 12px 0 0; }

/* ===== Tables ===== */
table.price { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
table.price th, table.price td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); }
table.price th { background: var(--ink); color: #fff; }
table.price tr:last-child td { border-bottom: none; }
table.price td:last-child { font-weight: 700; color: var(--brand-dark); }

/* ===== Forms ===== */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { font-weight: 600; font-size: .9rem; display: block; margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px;
  font: inherit; margin-bottom: 16px; background: #fbfcfe;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); border-color: var(--brand); }

/* ===== Breadcrumbs ===== */
.crumbs { font-size: .88rem; color: var(--muted); padding: 16px 0 0; }
.crumbs a { color: var(--muted); }

/* ===== Page header ===== */
.page-hero { background: var(--bg-soft); padding: 40px 0 50px; border-bottom: 1px solid var(--line); }
.page-hero p { color: var(--muted); max-width: 60ch; }

/* ===== Footer ===== */
footer.site { background: var(--ink); color: #aeb9d0; padding: 56px 0 24px; }
footer.site a { color: #cfdbf2; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
footer.site h4 { color: #fff; margin-bottom: 14px; font-size: 1.05rem; }
footer.site ul { list-style: none; padding: 0; margin: 0; }
footer.site li { margin-bottom: 8px; }
.foot-bottom { border-top: 1px solid #2a3556; margin-top: 36px; padding-top: 18px; font-size: .85rem; text-align: center; color: #8c99b8; }

/* ===== Floating call button ===== */
.float-call {
  position: fixed; bottom: 22px; right: 22px; z-index: 60;
  background: var(--accent); color: #fff; padding: 14px 22px; border-radius: 999px;
  font-weight: 800; box-shadow: 0 10px 26px rgba(0,184,169,.45);
}
.float-call:hover { color: #fff; text-decoration: none; transform: translateY(-2px); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-grid, .grid-3, .grid-4, .form-row, .foot-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .menu {
    position: absolute; top: 64px; right: 0; left: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 12px; border-bottom: 1px solid var(--line); display: none;
    box-shadow: var(--shadow);
  }
  .menu.open { display: flex; }
  .menu a { padding: 12px; }
  .nav-toggle { display: block; }
  .foot-grid { gap: 20px; }
}