/* =========================================================
   Mirpur Plumber Service — stylesheet
   Design language: "The Pipeline" — a deep teal + copper
   palette borrowed from pipe metal, with a running pipe-route
   line used as the connective signature down the page.
   ========================================================= */

:root {
  /* --- Color tokens --- */
  --teal-950: #0a2628;
  --teal-900: #0d3335;
  --teal-800: #124a4c;
  --teal-700: #186368;
  --teal-600: #1f7d82;
  --copper-600: #b06428;
  --copper-500: #c77b3c;
  --copper-400: #dd9a5f;
  --copper-100: #f6e6d3;
  --water-600: #2e7d8c;
  --bg: #f7f4ee;
  --bg-alt: #efe9dc;
  --paper: #ffffff;
  --ink: #16211f;
  --ink-soft: #4c5a56;
  --ink-faint: #7c8985;
  --line: #ddd5c2;
  --line-strong: #c9bea6;
  --ok-600: #2f7a4f;

  /* --- Type --- */
  --font-display: "Hind Siliguri", "Inter", system-ui, sans-serif;
  --font-body: "Hind Siliguri", "Inter", system-ui, sans-serif;
  --font-util: "Inter", "Hind Siliguri", system-ui, sans-serif;

  /* --- Shape / shadow --- */
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 10px 30px -12px rgba(10, 38, 40, 0.18);
  --shadow-card-hover: 0 18px 40px -14px rgba(10, 38, 40, 0.26);
  --shadow-float: 0 12px 28px -8px rgba(10, 38, 40, 0.35);

  --container: 1180px;
  --gap: clamp(1rem, 2vw, 1.75rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

h1, h2, h3, h4, p {
  margin: 0;
}

button {
  font: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--copper-500);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* =============== Utility =============== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--copper-500);
  color: #fff;
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-sm);
  z-index: 999;
  font-weight: 600;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-util);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--copper-600);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--copper-500);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 700;
  color: var(--teal-950);
  margin-top: 0.6rem;
  line-height: 1.3;
}

.section-head p {
  margin-top: 0.75rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

section {
  padding-block: clamp(3.2rem, 7vw, 5.5rem);
  position: relative;
}

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

/* =============== Buttons =============== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.95rem 1.6rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  white-space: nowrap;
}

.btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-call {
  background: var(--copper-500);
  color: #fff;
  box-shadow: 0 10px 24px -8px rgba(199, 123, 60, 0.55);
}

.btn-call:hover {
  background: var(--copper-600);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #1f8a53;
  color: #fff;
  box-shadow: 0 10px 24px -8px rgba(31, 138, 83, 0.5);
}

.btn-whatsapp:hover {
  background: #176b40;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--paper);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 0.6rem 1.1rem;
  font-size: 0.88rem;
}

/* =============== Header =============== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(10, 38, 40, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: #fff;
}

.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

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

.brand-text strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.brand-text span {
  font-family: var(--font-util);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--copper-400);
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.header-phone {
  display: none;
  color: #fff;
  font-family: var(--font-util);
  font-weight: 700;
  font-size: 0.95rem;
  align-items: center;
  gap: 0.4rem;
}

@media (min-width: 560px) {
  .header-phone {
    display: inline-flex;
  }
}

/* =============== Hero =============== */
.hero {
  position: relative;
  background: radial-gradient(120% 140% at 85% -10%, var(--teal-700) 0%, var(--teal-900) 45%, var(--teal-950) 100%);
  color: #fff;
  padding-block: clamp(3rem, 9vw, 6rem);
  overflow: hidden;
}

.hero-pipeline {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero-copy .eyebrow {
  color: var(--copper-400);
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.2vw, 3.4rem);
  font-weight: 700;
  line-height: 1.28;
  margin-top: 0.9rem;
  max-width: 16ch;
}

.hero-copy .sub {
  margin-top: 1.1rem;
  font-size: clamp(1.02rem, 2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.82);
  max-width: 46ch;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.9rem;
}

.hero-phone-line {
  margin-top: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-util);
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
}

.hero-phone-line strong {
  color: #fff;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
}

.trust-chips {
  margin-top: 2.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0.9rem;
}

.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-util);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-pill);
}

.trust-chip svg {
  width: 15px;
  height: 15px;
  color: var(--copper-400);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-card {
  position: relative;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  backdrop-filter: blur(6px);
  width: 100%;
  max-width: 380px;
}

.hero-card svg {
  width: 100%;
  height: auto;
}

/* =============== Pipe divider (signature element) =============== */
.pipe-divider {
  display: block;
  width: 100%;
  height: 46px;
  margin: 0;
}

.pipe-divider path {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 2;
  stroke-dasharray: 1 10;
  stroke-linecap: round;
}

.pipe-divider circle {
  fill: var(--copper-500);
}

/* =============== Services =============== */
.services-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.service-card {
  background: var(--paper);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(10, 38, 40, 0.05);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(150deg, var(--teal-800), var(--teal-950));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-icon svg {
  width: 24px;
  height: 24px;
  color: var(--copper-400);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--teal-950);
}

.service-card p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  flex-grow: 1;
}

.service-rate {
  font-family: var(--font-util);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--copper-600);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.2rem;
}

/* =============== Pricing =============== */
.pricing-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.pricing-card {
  background: var(--paper);
  border-radius: var(--radius-lg);
  padding: 2rem 1.7rem;
  box-shadow: var(--shadow-card);
  text-align: left;
  position: relative;
  border-top: 4px solid var(--copper-500);
}

.pricing-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--teal-950);
  font-weight: 700;
}

.pricing-card .price-tag {
  margin-top: 0.9rem;
  font-family: var(--font-util);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--copper-600);
}

.pricing-card ul {
  margin-top: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.pricing-card li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.pricing-card li svg {
  width: 17px;
  height: 17px;
  color: var(--ok-600);
  flex-shrink: 0;
  margin-top: 3px;
}

.pricing-note {
  margin-top: 2.2rem;
  background: var(--teal-950);
  color: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-md);
  padding: 1.3rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: space-between;
}

.pricing-note p {
  font-size: 0.95rem;
  max-width: 46ch;
}

/* =============== Why choose us =============== */
.why-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.why-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.4rem;
  border-radius: var(--radius-md);
  background: var(--paper);
  border: 1px solid var(--line);
}

.why-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--copper-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.why-icon svg {
  width: 22px;
  height: 22px;
  color: var(--copper-600);
}

.why-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--teal-950);
  margin-bottom: 0.3rem;
}

.why-card p {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

/* =============== Service area =============== */
.area-wrap {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

@media (min-width: 860px) {
  .area-wrap {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.area-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.area-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0.55rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--teal-900);
}

.area-chip svg {
  width: 15px;
  height: 15px;
  color: var(--copper-500);
}

.area-note {
  margin-top: 1.1rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.area-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--teal-950);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.area-visual svg {
  width: 92%;
  height: 92%;
}

/* =============== Gallery =============== */
.gallery-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.gallery-item {
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, var(--bg-alt), var(--line));
  border: 1.5px dashed var(--line-strong);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--ink-faint);
  text-align: center;
  padding: 1rem;
}

.gallery-item svg {
  width: 34px;
  height: 34px;
  color: var(--copper-500);
}

.gallery-item span {
  font-size: 0.82rem;
  font-weight: 600;
  max-width: 20ch;
}

.gallery-note {
  margin-top: 1.4rem;
  font-size: 0.88rem;
  color: var(--ink-faint);
  font-family: var(--font-util);
}

/* =============== Reviews =============== */
.reviews-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.review-card {
  background: var(--paper);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  border: 1px solid var(--line);
}

.review-stars {
  display: flex;
  gap: 0.2rem;
  color: var(--line-strong);
  margin-bottom: 0.9rem;
}

.review-stars svg {
  width: 18px;
  height: 18px;
}

.review-card p {
  color: var(--ink-soft);
  font-style: italic;
  font-size: 0.95rem;
}

.review-name {
  margin-top: 1rem;
  font-family: var(--font-util);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--teal-900);
  font-style: normal !important;
}

/* =============== FAQ =============== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-width: 780px;
}

.faq-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.3rem;
  background: transparent;
  border: none;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--teal-950);
}

.faq-question .plus {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--copper-100);
  color: var(--copper-600);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
  font-size: 1.1rem;
  font-weight: 700;
}

.faq-item[open] .faq-question .plus {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.3rem 1.2rem;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

/* =============== Contact =============== */
.contact-section {
  background: radial-gradient(120% 140% at 15% 0%, var(--teal-700) 0%, var(--teal-950) 55%, var(--teal-950) 100%);
  color: #fff;
}

.contact-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

@media (min-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-section .section-head h2 {
  color: #fff;
}

.contact-section .section-head p {
  color: rgba(255, 255, 255, 0.75);
}

.contact-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  backdrop-filter: blur(6px);
}

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding-block: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-row:last-of-type {
  border-bottom: none;
}

.contact-row svg {
  width: 20px;
  height: 20px;
  color: var(--copper-400);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-row .label {
  font-family: var(--font-util);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0.15rem;
}

.contact-row .value {
  font-weight: 600;
  font-size: 1.02rem;
}

.contact-actions {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.contact-hours {
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-hours h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.9rem;
}

.contact-hours p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* =============== Footer =============== */
.site-footer {
  background: var(--teal-950);
  color: rgba(255, 255, 255, 0.7);
  padding-block: 2.6rem;
  padding-bottom: calc(2.6rem + 78px);
}

@media (min-width: 720px) {
  .site-footer {
    padding-bottom: 2.6rem;
  }
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #fff;
  margin-bottom: 0.8rem;
}

.footer-brand svg {
  width: 30px;
  height: 30px;
}

.footer-brand strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.footer-col h4 {
  font-family: var(--font-util);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--copper-400);
  margin-bottom: 0.9rem;
}

.footer-col p,
.footer-col a {
  font-size: 0.9rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.72);
}

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

.footer-bottom {
  margin-top: 2.4rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.82rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.5);
}

/* =============== Sticky mobile action bar =============== */
.mobile-action-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  display: flex;
  gap: 0.6rem;
  padding: 0.65rem 0.8rem calc(0.65rem + env(safe-area-inset-bottom));
  background: rgba(10, 38, 40, 0.97);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-float);
}

@media (min-width: 720px) {
  .mobile-action-bar {
    display: none;
  }
}

.mobile-action-bar .btn {
  flex: 1;
  padding: 0.85rem 1rem;
}

/* Desktop floating actions */
.desktop-float {
  display: none;
}

@media (min-width: 720px) {
  .desktop-float {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    position: fixed;
    right: 1.6rem;
    bottom: 1.6rem;
    z-index: 80;
  }

  .desktop-float a {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-float);
    transition: transform 0.2s ease;
  }

  .desktop-float a:hover {
    transform: translateY(-3px) scale(1.05);
  }

  .desktop-float a svg {
    width: 24px;
    height: 24px;
    color: #fff;
  }

  .desktop-float .fab-call {
    background: var(--copper-500);
  }

  .desktop-float .fab-whatsapp {
    background: #1f8a53;
  }
}

/* =============== Reveal-on-scroll =============== */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* =============== Misc =============== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}