/* ============================================================
   ICG NEWGROUND — Premium Sustainable Infrastructure Theme
   ============================================================ */

/* ----- Custom Properties ----- */
:root {
  --color-bg:        #0B1426;
  --color-bg-light:  #111D32;
  --color-bg-card:   #142038;
  --color-accent:    #10B981;
  --color-accent-dark:#0D9668;
  --color-white:     #FFFFFF;
  --color-silver:    #CBD5E1;
  --color-muted:     #8899B0;
  --color-divider:   rgba(16,185,129,.25);

  --font-heading:    'Cormorant Garamond', Georgia, serif;
  --font-body:       'Inter', system-ui, sans-serif;

  --container-max:   1180px;
  --radius:          10px;
  --transition:      .35s cubic-bezier(.25,.46,.45,.94);
}

/* ----- Reset & Base ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-silver);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

.container {
  width: 90%;
  max-width: var(--container-max);
  margin: 0 auto;
}

/* ----- Reveal Animation ----- */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s var(--transition), transform .7s var(--transition);
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Section Shared ----- */
.section {
  padding: 100px 0;
  position: relative;
}

.section__divider {
  width: 60px;
  height: 1px;
  background: var(--color-divider);
  margin: 0 auto 60px;
}

.section__tag {
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section__subtitle {
  max-width: 600px;
  margin-bottom: 48px;
  color: var(--color-muted);
}

/* ----- Buttons ----- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-weight: 500;
  font-size: .95rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: .5px;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg);
}
.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(16,185,129,.25);
}

.btn--outline {
  border: 1px solid rgba(203,213,225,.3);
  color: var(--color-silver);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--full { width: 100%; text-align: center; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 24px 0;
  transition: padding var(--transition), background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  padding: 12px 0;
  background: rgba(11,20,38,.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 40px rgba(0,0,0,.35);
}

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

.navbar__logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 2px;
}
.navbar__logo span {
  color: var(--color-accent);
}

.navbar__links {
  display: flex;
  gap: 36px;
}
.navbar__links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-silver);
  transition: color var(--transition);
  position: relative;
}
.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.navbar__links a:hover { color: var(--color-accent); }
.navbar__links a:hover::after { width: 100%; }

.navbar__cta {
  padding: 10px 24px;
  font-size: .85rem;
}

.navbar__toggle {
  display: none;
  font-size: 1.6rem;
  color: var(--color-white);
  cursor: pointer;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,20,38,.55) 0%, var(--color-bg) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-top: 140px;
  max-width: 720px;
}

.hero__tag {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero__sub {
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Stats bar pinned at bottom of hero */
.hero__stats {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 2;
  background: rgba(17,29,50,.7);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-divider);
}

.hero__stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: center;
  padding: 32px 0;
  gap: 12px;
}

.hero__stat-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
}

.hero__stat-label {
  font-size: .78rem;
  color: var(--color-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about__lead {
  font-size: 1.15rem;
  color: var(--color-white);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about__text p + p {
  margin-top: 16px;
}

.about__values {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.value-card {
  background: var(--color-bg-light);
  border-radius: var(--radius);
  padding: 28px 32px;
  border: 1px solid rgba(203,213,225,.06);
  transition: border-color var(--transition), transform var(--transition);
}
.value-card:hover {
  border-color: var(--color-divider);
  transform: translateY(-3px);
}

.value-card i {
  font-size: 1.8rem;
  color: var(--color-accent);
  margin-bottom: 12px;
  display: block;
}

.value-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-white);
  margin-bottom: 8px;
}

.value-card p {
  font-size: .9rem;
  color: var(--color-muted);
}

/* ============================================================
   SOLUTIONS
   ============================================================ */
.solutions__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.solution-card {
  background: var(--color-bg-light);
  border-radius: var(--radius);
  padding: 36px 32px;
  border: 1px solid rgba(203,213,225,.06);
  border-top: 3px solid var(--color-accent);
  transition: transform var(--transition), box-shadow var(--transition);
}
.solution-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,.3);
}

.solution-card i {
  font-size: 2.2rem;
  color: var(--color-accent);
  margin-bottom: 20px;
  display: block;
}

.solution-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.solution-card p {
  font-size: .9rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ============================================================
   IMPACT
   ============================================================ */
.impact__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.impact-card {
  background: var(--color-bg-light);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid rgba(203,213,225,.06);
  transition: border-color var(--transition), transform var(--transition);
}
.impact-card:hover {
  border-color: var(--color-divider);
  transform: translateY(-4px);
}

.impact-card i {
  font-size: 2.4rem;
  color: var(--color-accent);
  margin-bottom: 16px;
  display: block;
}

.impact-card__value {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-white);
}

.impact-card__unit {
  display: block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.impact-card p {
  font-size: .85rem;
  color: var(--color-muted);
}

/* ============================================================
   QUOTE
   ============================================================ */
.quote__block {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.quote__block p {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-style: italic;
  color: var(--color-white);
  line-height: 1.5;
  margin-bottom: 28px;
}

.quote__block footer {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.quote__block strong {
  color: var(--color-white);
  font-weight: 600;
}

.quote__block span {
  font-size: .85rem;
  color: var(--color-muted);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 500;
  color: var(--color-silver);
  margin-bottom: 8px;
  letter-spacing: .5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-bg-light);
  border: 1px solid rgba(203,213,225,.1);
  border-radius: var(--radius);
  color: var(--color-white);
  transition: border-color var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
}

.form-group select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238899B0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.form-group select option {
  background: var(--color-bg-light);
  color: var(--color-silver);
}

.form-group textarea { resize: vertical; }

/* Contact info column */
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 8px;
}

.contact__detail {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.contact__detail i {
  font-size: 1.5rem;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__detail h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-white);
  margin-bottom: 4px;
}

.contact__detail p {
  font-size: .9rem;
  color: var(--color-muted);
}

.contact__social {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.contact__social a {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(203,213,225,.12);
  font-size: 1.2rem;
  color: var(--color-silver);
  transition: var(--transition);
}
.contact__social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(16,185,129,.08);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-bg-light);
  padding-top: 72px;
  border-top: 1px solid rgba(203,213,225,.06);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer__brand p {
  margin-top: 14px;
  font-size: .9rem;
  color: var(--color-muted);
  max-width: 260px;
}

.footer__col h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--color-white);
  margin-bottom: 18px;
}

.footer__col li + li { margin-top: 10px; }

.footer__col a {
  font-size: .88rem;
  color: var(--color-muted);
  transition: color var(--transition);
}
.footer__col a:hover { color: var(--color-accent); }

.footer__bottom {
  border-top: 1px solid rgba(203,213,225,.06);
  padding: 20px 0;
  text-align: center;
  font-size: .8rem;
  color: var(--color-muted);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .solutions__grid { grid-template-columns: repeat(2, 1fr); }
  .impact__grid    { grid-template-columns: repeat(2, 1fr); }
  .footer__inner   { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .navbar__links,
  .navbar__cta { display: none; }
  .navbar__toggle { display: block; }

  /* Mobile menu open state */
  .navbar__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(11,20,38,.97);
    backdrop-filter: blur(12px);
    padding: 28px 5%;
    gap: 20px;
    border-bottom: 1px solid var(--color-divider);
  }

  .hero__content { padding-top: 120px; }
  .hero__stats-inner { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .about__grid      { grid-template-columns: 1fr; gap: 40px; }
  .solutions__grid   { grid-template-columns: 1fr; }
  .impact__grid      { grid-template-columns: 1fr; }
  .contact__grid     { grid-template-columns: 1fr; gap: 40px; }
  .form-row          { grid-template-columns: 1fr; }

  .section { padding: 72px 0; }
  .footer__inner { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2rem; }
  .hero__stats-inner { grid-template-columns: 1fr 1fr; }
  .hero__stat-value { font-size: 1.6rem; }
  .btn { padding: 12px 24px; font-size: .88rem; }
}