/* ==========================================================================
   JEICL — Joshi Enviro-Infra Consultant LLP
   Master stylesheet. Palette sampled from logo.
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Palette from logo */
  --forest:  #1C5A2E;   /* deep leaf / JOSHI wordmark */
  --leaf:    #2A7D3F;   /* primary brand green */
  --sprout:  #6BA04C;   /* accent green, hover */
  --sun:     #E5A817;   /* sun gold */
  --sun-lt:  #F5C547;   /* lighter gold */
  --sky:     #3AA9E0;   /* water blue */
  --ring:    #2E4B7C;   /* outer ring deep blue */
  --earth:   #A67C52;   /* earth brown */
  --sage:    #7A9A7E;   /* muted sage — tagline color from logo */

  /* Neutrals */
  --ink:     #1A1D1C;
  --graphite:#2F3632;
  --stone:   #5B6460;
  --mist:    #ECE8DF;
  --cream:   #F9F6EF;
  --paper:   #FFFFFF;
  --line:    #E3E0D7;

  /* Type */
  --font-display: "Jost", "Century Gothic", "Futura", "Avenir Next", sans-serif;
  --font-body:    "Jost", "Century Gothic", "Futura", "Avenir Next", sans-serif;

  /* Spacing */
  --wrap: min(1240px, 92vw);
  --radius: 4px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(26,29,28,.05), 0 2px 8px rgba(26,29,28,.04);
  --shadow-md: 0 4px 12px rgba(26,29,28,.06), 0 12px 40px rgba(26,29,28,.08);
  --shadow-lg: 0 10px 24px rgba(26,29,28,.08), 0 30px 80px rgba(26,29,28,.10);
}

/* ---------- Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: normal;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--leaf); text-decoration: none; transition: color .2s; }
a:hover { color: var(--forest); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.18;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 500; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { margin: 0 0 1em; color: var(--graphite); }
.lead { font-size: 1.15rem; color: var(--stone); line-height: 1.65; }

.wrap { width: var(--wrap); margin-inline: auto; }
.section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section-sm { padding: clamp(2.5rem, 5vw, 4rem) 0; }
.muted-bg { background: var(--cream); }
.dark-bg { background: var(--forest); color: var(--cream); }
.dark-bg h1, .dark-bg h2, .dark-bg h3 { color: var(--cream); }
.dark-bg p { color: rgba(249,246,239,.8); }

/* Utility */
.eyebrow {
  display: inline-block;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--leaf);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--leaf);
  vertical-align: middle;
  margin-right: 10px;
  transform: translateY(-2px);
}
.dark-bg .eyebrow { color: var(--sun-lt); }
.dark-bg .eyebrow::before { background: var(--sun-lt); }

.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.6rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .94rem;
  letter-spacing: .01em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .2s ease;
  text-decoration: none;
}
.btn-primary { background: var(--forest); color: var(--cream); }
.btn-primary:hover { background: var(--leaf); color: var(--cream); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: var(--forest); border-color: var(--forest); }
.btn-ghost:hover { background: var(--forest); color: var(--cream); }
.btn-sun { background: var(--sun); color: var(--ink); }
.btn-sun:hover { background: var(--sun-lt); }
.btn-arrow::after {
  content: "→";
  display: inline-block;
  margin-left: .3rem;
  transition: transform .2s;
}
.btn-arrow:hover::after { transform: translateX(4px); }

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(1.2) blur(10px);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  width: var(--wrap);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 0;
  gap: 2rem;
}
.nav-brand { display: flex; align-items: center; gap: 1rem; text-decoration: none; }
.nav-brand img { width: 58px; height: 58px; }
.nav-brand-text {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--forest);
  line-height: 1;
  letter-spacing: .26em;
  text-transform: uppercase;
  padding-right: .26em;  /* optical balance — last-letter spacing */
}
.nav-brand-text small {
  display: block;
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 300;
  letter-spacing: .02em;
  text-transform: none;
  color: var(--sage);
  margin-top: 6px;
  padding-right: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  position: relative;
  font-size: .92rem;
  font-weight: 700;
  color: var(--graphite);
  padding: .4rem 0;
}
.nav-links a:hover, .nav-links a.active { color: var(--forest); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 2px;
  background: var(--sun);
}
.nav-cta { font-size: .9rem; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: .5rem;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--forest);
  transition: all .25s;
}

/* Services dropdown */
.has-menu { position: relative; }
.submenu {
  position: absolute;
  top: 100%;
  left: -1rem;
  min-width: 260px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: .75rem;
  margin-top: .5rem;
  list-style: none;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all .2s;
}
.has-menu:hover > .submenu,
.has-menu:focus-within > .submenu { opacity: 1; visibility: visible; transform: translateY(0); }
.submenu a {
  display: block;
  padding: .55rem .75rem;
  border-radius: 8px;
  font-size: .9rem;
  color: var(--graphite);
}
.submenu a:hover { background: var(--cream); color: var(--forest); }
.submenu-swatch {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: .5rem;
  vertical-align: middle;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(4rem, 9vw, 8rem) 0 clamp(4rem, 8vw, 7rem);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 85% 0%, rgba(229,168,23,.08), transparent 60%),
    radial-gradient(ellipse 500px 500px at 0% 80%, rgba(58,169,224,.06), transparent 60%),
    radial-gradient(ellipse 700px 500px at 50% 100%, rgba(42,125,63,.05), transparent 60%);
  z-index: -1;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero h1 .accent {
  font-style: italic;
  color: var(--leaf);
  font-weight: 400;
}
.hero-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.hero-meta-item { min-width: 110px; }
.hero-meta-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--forest);
  font-weight: 500;
  line-height: 1;
  margin-bottom: .25rem;
  letter-spacing: -0.01em;
}
.hero-meta-item span {
  font-size: .78rem;
  color: var(--stone);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-weight: 400;
}
.hero-visual {
  position: relative;
  aspect-ratio: 1;
  max-width: 560px;
  margin-left: auto;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 12%;
  background: radial-gradient(circle at center, rgba(229,168,23,.10), transparent 65%);
  filter: blur(30px);
  z-index: -1;
}
.hero-visual img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 24px 50px rgba(26,29,28,.18));
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.hero-cta-row { display: flex; gap: 1rem; margin-top: 1.8rem; flex-wrap: wrap; }

/* ---------- Elements Strip (4-element theme) ---------- */
.elements {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.element {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.element-dot {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 18px;
}
.element-dot.sun   { background: color-mix(in srgb, var(--sun) 18%, transparent); color: var(--sun); }
.element-dot.leaf  { background: color-mix(in srgb, var(--leaf) 14%, transparent); color: var(--leaf); }
.element-dot.sky   { background: color-mix(in srgb, var(--sky) 16%, transparent); color: var(--sky); }
.element-dot.earth { background: color-mix(in srgb, var(--earth) 22%, transparent); color: var(--earth); }
.element strong {
  display: block;
  font-size: .95rem;
  color: var(--ink);
}
.element span {
  font-size: .82rem;
  color: var(--stone);
}

/* ---------- Services Grid ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.service-card {
  position: relative;
  padding: 2rem 1.75rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .3s;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent, var(--leaf));
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .3s;
}
.service-card:hover {
  border-color: var(--accent, var(--leaf));
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.service-card:hover::before { transform: scaleY(1); }
.service-icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent, var(--leaf)) 12%, transparent);
  color: var(--accent, var(--leaf));
  border-radius: 10px;
  margin-bottom: 1.2rem;
  font-size: 22px;
}
.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: .5rem;
}
.service-card p {
  font-size: .92rem;
  color: var(--stone);
  margin-bottom: 1rem;
}
.service-card .service-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--accent, var(--leaf));
  text-transform: uppercase;
  letter-spacing: .08em;
}
.service-card .service-link::after { content: " →"; transition: margin .2s; }
.service-card:hover .service-link::after { margin-left: 4px; }

/* Accent classes for service cards */
.accent-leaf  { --accent: var(--leaf); }
.accent-sun   { --accent: #C68A0F; }
.accent-sky   { --accent: var(--sky); }
.accent-earth { --accent: var(--earth); }
.accent-forest{ --accent: var(--forest); }
.accent-ring  { --accent: var(--ring); }

/* ---------- About / Two-column ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.two-col-wide { grid-template-columns: 1.4fr 1fr; }
.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}
.feature-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: .8rem;
  align-items: start;
  padding: .75rem 0;
  border-bottom: 1px solid var(--line);
  font-size: .95rem;
}
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before {
  content: "";
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--sun);
  margin-top: .45rem;
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding: 3rem 2rem;
  background: var(--forest);
  border-radius: var(--radius-lg);
  color: var(--cream);
}
.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: normal;
  color: var(--sun-lt);
  line-height: 1;
  margin-bottom: .5rem;
}
.stat-label {
  font-size: .85rem;
  color: rgba(249,246,239,.7);
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* ---------- Parameter Table / Tech grid ---------- */
.param-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: .75rem;
  margin-top: 1.5rem;
}
.param-pill {
  padding: .6rem 1rem;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: .88rem;
  color: var(--graphite);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.param-pill::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--leaf);
  border-radius: 50%;
  flex-shrink: 0;
}

.standards-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.standard-tag {
  padding: 1rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--sun);
  border-radius: var(--radius);
  background: var(--paper);
}
.standard-tag strong {
  display: block;
  font-size: .92rem;
  color: var(--forest);
  margin-bottom: .2rem;
}
.standard-tag span { font-size: .78rem; color: var(--stone); }

/* ---------- Page Header (for inner pages) ---------- */
.page-head {
  position: relative;
  padding: 5rem 0 3.5rem;
  background: linear-gradient(180deg, var(--cream) 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.page-head::after {
  content: "";
  position: absolute;
  right: -50px; top: 50%;
  transform: translateY(-50%);
  width: 320px; height: 320px;
  border: 1px solid var(--sun);
  border-radius: 50%;
  opacity: .25;
  pointer-events: none;
}
.page-head::before {
  content: "";
  position: absolute;
  right: 30px; top: 50%;
  transform: translateY(-50%);
  width: 220px; height: 220px;
  border: 1px solid var(--leaf);
  border-radius: 50%;
  opacity: .2;
  pointer-events: none;
}
.crumb {
  font-size: .74rem;
  color: var(--stone);
  margin-bottom: 1.2rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-weight: 500;
}
.crumb a { color: var(--stone); }
.crumb a:hover { color: var(--leaf); }
.crumb span { margin: 0 .6rem; color: var(--line); }

/* ---------- Forms ---------- */
.form {
  display: grid;
  gap: 1.2rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}
.form label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--graphite);
  margin-bottom: .4rem;
  letter-spacing: .02em;
}
.form input,
.form select,
.form textarea {
  width: 100%;
  padding: .8rem 1rem;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s;
}
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--leaf);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--leaf) 15%, transparent);
}
.form textarea { min-height: 130px; resize: vertical; }
.form-note {
  font-size: .82rem;
  color: var(--stone);
}

/* ---------- Contact cards ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}
.contact-card {
  padding: 1.75rem;
  background: var(--cream);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--leaf);
}
.contact-card:nth-child(2) { border-left-color: var(--sun); }
.contact-card:nth-child(3) { border-left-color: var(--sky); }
.contact-card:nth-child(4) { border-left-color: var(--earth); }
.contact-card strong {
  display: block;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--stone);
  margin-bottom: .5rem;
}
.contact-card p {
  font-size: 1rem;
  color: var(--ink);
  margin: 0;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--forest);
  color: rgba(249,246,239,.8);
  padding: 4rem 0 2rem;
}
.footer a { color: rgba(249,246,239,.85); }
.footer a:hover { color: var(--sun-lt); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(249,246,239,.12);
}
.footer-brand { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.footer-brand img { width: 78px; height: 78px; }
.footer-brand-text {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 500;
  color: var(--cream);
  line-height: 1;
  letter-spacing: .26em;
  text-transform: uppercase;
  padding-right: .26em;
}
.footer-brand-text small {
  display: block;
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .02em;
  text-transform: none;
  color: #B8C9B2;  /* sage on dark, lightened */
  margin-top: 8px;
  font-weight: 300;
  padding-right: 0;
}
.footer-brand-text small[style*="italic"] {
  font-size: .82rem;
  margin-top: 6px;
  color: var(--sun);
  letter-spacing: .01em;
  opacity: .85;
}
.footer-desc { font-size: .92rem; line-height: 1.7; max-width: 340px; }
.footer h4 {
  font-family: var(--font-body);
  font-size: .78rem;
  color: var(--sun-lt);
  text-transform: uppercase;
  letter-spacing: .16em;
  margin-bottom: 1.2rem;
  font-weight: 600;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { padding: .35rem 0; }
.footer ul a { font-size: .92rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  font-size: .82rem;
  color: rgba(249,246,239,.5);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---------- CTA banner ---------- */
.cta-banner {
  position: relative;
  padding: clamp(3rem, 6vw, 5rem) clamp(2rem, 5vw, 4rem);
  background: linear-gradient(135deg, var(--forest) 0%, #0F4520 100%);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: var(--cream);
}
.cta-banner::after {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(229,168,23,.25), transparent 70%);
  pointer-events: none;
}
.cta-banner h2 { color: var(--cream); max-width: 640px; }
.cta-banner p { color: rgba(249,246,239,.8); max-width: 560px; margin-bottom: 2rem; }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 64px;
    right: 0;
    width: 85%;
    max-width: 340px;
    height: calc(100vh - 64px);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
    background: var(--paper);
    border-left: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform .3s;
    overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-toggle { display: flex; }
  .has-menu .submenu {
    position: static;
    box-shadow: none;
    border: 1px solid var(--line);
    opacity: 1;
    visibility: visible;
    transform: none;
    margin: .5rem 0 0;
    padding: .5rem;
    width: 100%;
  }
  .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { max-width: 420px; margin: 0 auto; }
  .two-col { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .elements { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .elements { grid-template-columns: 1fr; }
  .nav-brand img { width: 48px; height: 48px; }
  .nav-brand-text { font-size: 1.1rem; letter-spacing: .16em; padding-right: .16em; }
  .nav-brand-text small { font-size: .62rem; }
}

/* ---------- Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .8s, transform .8s;
}
.reveal.visible { opacity: 1; transform: translateY(0); }