/* =========================================================================
   Arghha Marketing LLP — Stylesheet
   Premium real-estate mandate & marketing firm — blue / grey / white only.
   Typography: Plus Jakarta Sans (Google Fonts)
   ========================================================================= */

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

html { scroll-behavior: smooth; }

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd {
  margin: 0;
}

ul[class], ol[class] { list-style: none; margin: 0; padding: 0; }

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

input, button, textarea, select { font: inherit; }

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

button { cursor: pointer; }

/* ------------------------------ Design Tokens --------------------------- */
:root {
  /* Colors */
  --primary-blue: #123B63;
  --dark-blue: #0B2742;
  --medium-blue: #1F5A8A;
  --light-blue: #EAF2F8;
  --dark-grey: #2F3A43;
  --medium-grey: #66717A;
  --light-grey: #F4F6F8;
  --white: #FFFFFF;

  --border-subtle: rgba(47, 58, 67, 0.10);
  --border-soft: rgba(47, 58, 67, 0.14);
  --shadow-sm: 0 2px 10px rgba(11, 39, 66, 0.06);
  --shadow-md: 0 10px 30px rgba(11, 39, 66, 0.10);
  --shadow-lg: 0 24px 60px rgba(11, 39, 66, 0.16);

  /* Typography */
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Layout */
  --container-width: 1200px;
  --header-height: 84px;
  --header-height-scrolled: 72px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s var(--ease);
  --transition-base: 0.35s var(--ease);
  --transition-slow: 0.6s var(--ease);
}

/* --------------------------------- Base --------------------------------- */
body {
  font-family: var(--font-primary);
  font-weight: var(--fw-regular);
  color: var(--dark-grey);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-primary);
  font-weight: var(--fw-bold);
  color: var(--dark-blue);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h5, h6 {
  font-family: var(--font-primary);
  font-weight: var(--fw-semibold);
  color: var(--dark-blue);
}

p { color: var(--medium-grey); }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

section { position: relative; }

/* Section heading kit */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--medium-blue);
  margin-bottom: 16px;
}

.section-eyebrow::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--medium-blue);
  display: inline-block;
}

.section-heading {
  font-size: clamp(1.9rem, 3.2vw, 2.5rem);
  margin-bottom: 16px;
  max-width: 720px;
}

.section-subtext {
  font-size: 1.05rem;
  color: var(--medium-grey);
  max-width: 620px;
  line-height: 1.7;
}

.section-head {
  margin-bottom: 56px;
}

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

.section-head.center .section-heading,
.section-head.center .section-subtext {
  margin-inline: auto;
}

.section-head.split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

/* Fade-in on scroll */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }

.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0.02s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.10s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.18s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.26s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.34s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.42s; }

/* --------------------------------- Buttons ------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  font-size: 0.95rem;
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
              background-color var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
  white-space: nowrap;
}

.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.btn-primary {
  background: var(--primary-blue);
  color: var(--white);
  box-shadow: 0 1px 2px rgba(11, 39, 66, 0.06);
}

.btn-primary:hover {
  background: var(--dark-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--dark-blue);
  border-color: rgba(11, 39, 66, 0.25);
}

.btn-secondary:hover {
  border-color: var(--dark-blue);
  background: var(--light-blue);
  transform: translateY(-2px);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-block { width: 100%; }
.btn-lg { padding: 17px 34px; font-size: 1rem; }

/* ================================ HEADER ================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: height var(--transition-base), box-shadow var(--transition-base),
              border-color var(--transition-base), background-color var(--transition-base);
}

.site-header.is-scrolled {
  height: var(--header-height-scrolled);
  box-shadow: 0 2px 20px rgba(11, 39, 66, 0.08);
  border-bottom-color: var(--border-subtle);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand img {
  height: 40px;
  width: auto;
  transition: height var(--transition-base);
}

.site-header.is-scrolled .brand img { height: 34px; }

.main-nav { display: flex; align-items: center; gap: 4px; }

.main-nav a.nav-link {
  position: relative;
  padding: 10px 16px;
  font-size: 0.94rem;
  font-weight: var(--fw-medium);
  color: var(--dark-grey);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.main-nav a.nav-link::after {
  content: '';
  position: absolute;
  left: 16px; right: 16px; bottom: 6px;
  height: 2px;
  background: var(--primary-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.main-nav a.nav-link:hover { color: var(--primary-blue); }
.main-nav a.nav-link:hover::after { transform: scaleX(1); }

.main-nav a.nav-link.active { color: var(--primary-blue); }
.main-nav a.nav-link.active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 20px; }

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 0;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--dark-blue);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; }
.hamburger.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================== MOBILE NAV =============================== */
.mobile-nav {
  position: fixed;
  top: var(--header-height-scrolled);
  left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
  z-index: 999;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.mobile-nav.is-open { max-height: 480px; }

.mobile-nav .container { padding-block: 12px; }

.mobile-nav a.nav-link {
  display: block;
  padding: 14px 4px;
  font-size: 1rem;
  font-weight: var(--fw-medium);
  color: var(--dark-blue);
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav a.nav-link:last-of-type { border-bottom: none; }

.mobile-nav .btn { margin-top: 14px; }

/* ================================= HERO ================================== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background: var(--dark-blue);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 70%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11, 39, 66, 0.78) 0%, rgba(11, 39, 66, 0.55) 42%, rgba(11, 39, 66, 0.92) 100%),
    linear-gradient(100deg, rgba(11, 39, 66, 0.55) 0%, rgba(11, 39, 66, 0.15) 55%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-block: 90px 70px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.04em;
  color: var(--light-blue);
  background: rgba(255, 255, 255, 0.06);
  margin-bottom: 28px;
}

.hero-kicker .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #7FB4DE;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.4rem, 5.4vw, 4.1rem);
  font-weight: var(--fw-bold);
  max-width: 780px;
  margin-bottom: 26px;
  letter-spacing: -0.02em;
}

.hero-subtext {
  color: rgba(234, 242, 248, 0.86);
  font-size: 1.15rem;
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 42px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 64px; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 48px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  max-width: 720px;
}

.hero-stat-value {
  font-size: 1.7rem;
  font-weight: var(--fw-bold);
  color: var(--white);
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(234, 242, 248, 0.7);
  font-weight: var(--fw-medium);
}

.scroll-cue {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(234, 242, 248, 0.7);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-cue .line {
  width: 1px;
  height: 32px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), transparent);
  animation: scrollcue 1.8s var(--ease) infinite;
}

@keyframes scrollcue {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.01% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================ WHY CHOOSE US ============================== */
.why-section { padding: 120px 0; background: var(--white); }

.value-list {
  display: flex;
  flex-direction: column;
}

.value-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 28px;
  padding: 34px 0;
  border-top: 1px solid var(--border-subtle);
  align-items: flex-start;
}

.value-list .value-row:last-child { border-bottom: 1px solid var(--border-subtle); }

.value-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--light-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  flex-shrink: 0;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.value-row:hover .value-icon {
  background: var(--primary-blue);
  color: var(--white);
  transform: translateY(-2px);
}

.value-icon svg { width: 26px; height: 26px; }

.value-body { display: flex; flex-direction: column; gap: 6px; }

.value-index {
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  color: var(--medium-blue);
  letter-spacing: 0.06em;
}

.value-title {
  font-size: 1.25rem;
  font-weight: var(--fw-semibold);
  color: var(--dark-blue);
}

.value-text {
  color: var(--medium-grey);
  max-width: 640px;
  font-size: 0.98rem;
}

/* =============================== WHAT WE DO ================================ */
.services-section { padding: 120px 0; background: var(--light-grey); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.service-card {
  background: var(--white);
  padding: 42px 36px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: background-color var(--transition-fast);
}

.service-card:hover { background: var(--light-blue); }

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  background: var(--white);
}

.service-icon svg { width: 24px; height: 24px; }

.service-title {
  font-size: 1.12rem;
  font-weight: var(--fw-semibold);
  color: var(--dark-blue);
}

.service-text {
  color: var(--medium-grey);
  font-size: 0.95rem;
}

/* ================================ PROJECTS ================================= */
.projects-section { padding: 120px 0; background: var(--white); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.project-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--dark-blue);
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.project-card:hover .project-media img { transform: scale(1.06); }

.project-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(11, 39, 66, 0.82);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.project-body {
  padding: 26px 26px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.project-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: var(--fw-medium);
  color: var(--medium-blue);
}

.project-location svg { width: 14px; height: 14px; }

.project-name {
  font-size: 1.2rem;
  font-weight: var(--fw-semibold);
  color: var(--dark-blue);
}

.project-desc {
  color: var(--medium-grey);
  font-size: 0.92rem;
  flex: 1;
}

.project-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 0.9rem;
  font-weight: var(--fw-semibold);
  color: var(--primary-blue);
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.project-cta svg {
  width: 15px; height: 15px;
  transition: transform var(--transition-fast);
}

.project-card:hover .project-cta svg { transform: translateX(4px); }

/* ================================ CONTACT ================================== */
.contact-section {
  padding: 120px 0;
  background: var(--dark-blue);
  position: relative;
  overflow: hidden;
}

.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.contact-heading .section-eyebrow { color: #7FB4DE; }
.contact-heading .section-eyebrow::before { background: #7FB4DE; }

.contact-heading h2 {
  color: var(--white);
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  margin-bottom: 18px;
  max-width: 560px;
}

.contact-heading p {
  color: rgba(234, 242, 248, 0.78);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 36px;
}

.contact-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(6px);
}

.contact-detail {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.contact-detail:first-child { padding-top: 0; }
.contact-detail:last-child { border-bottom: none; padding-bottom: 0; }

.contact-detail-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  display: flex; align-items: center; justify-content: center;
  color: #9CC5E6;
  flex-shrink: 0;
}

.contact-detail-icon svg { width: 20px; height: 20px; }

.contact-detail-label {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(234, 242, 248, 0.55);
  margin-bottom: 4px;
  font-weight: var(--fw-medium);
}

.contact-detail-value {
  color: var(--white);
  font-weight: var(--fw-medium);
  font-size: 1.02rem;
  transition: color var(--transition-fast);
}

a.contact-detail-value:hover { color: #9CC5E6; }

.contact-card .btn { margin-top: 28px; }

/* =========================== ENQUIRY MODAL =============================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 39, 66, 0.62);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.is-open { opacity: 1; visibility: visible; }

.modal-box {
  background: var(--white);
  width: 100%;
  max-width: 460px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  position: relative;
  transform: translateY(24px) scale(0.98);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  max-height: 88vh;
  overflow-y: auto;
}

.modal-overlay.is-open .modal-box {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: 18px; right: 18px;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-soft);
  background: var(--white);
  display: flex; align-items: center; justify-content: center;
  color: var(--medium-grey);
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.modal-close:hover { background: var(--light-grey); color: var(--dark-blue); transform: rotate(90deg); }
.modal-close svg { width: 16px; height: 16px; }

.modal-eyebrow {
  font-size: 0.78rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--medium-blue);
  margin-bottom: 10px;
}

.modal-box h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.modal-box .modal-subtext {
  color: var(--medium-grey);
  font-size: 0.94rem;
  margin-bottom: 28px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 0.86rem;
  font-weight: var(--fw-medium);
  color: var(--dark-blue);
  margin-bottom: 7px;
}

.form-group input {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: 0.96rem;
  color: var(--dark-grey);
  background: var(--light-grey);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-blue);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(18, 59, 99, 0.10);
}

.form-group input.is-invalid { border-color: #B23B3B; background: #FBF1F1; }

.form-error {
  display: none;
  font-size: 0.8rem;
  color: #B23B3B;
  margin-top: 6px;
}

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

.form-status {
  display: none;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 18px;
  font-weight: var(--fw-medium);
}

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

.form-status.success { background: var(--light-blue); color: var(--dark-blue); border: 1px solid rgba(18, 59, 99, 0.18); }
.form-status.error { background: #FBF1F1; color: #7A2A2A; border: 1px solid rgba(178, 59, 59, 0.25); }

.form-submitting { opacity: 0.7; pointer-events: none; }

.modal-privacy {
  font-size: 0.78rem;
  color: var(--medium-grey);
  text-align: center;
  margin-top: 16px;
}

/* ================================= FOOTER ================================== */
.site-footer {
  background: var(--dark-blue);
  color: rgba(234, 242, 248, 0.75);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand-badge {
  display: inline-flex;
  background: var(--white);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 22px;
}

.footer-brand-badge img { height: 32px; width: auto; }

.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: var(--fw-semibold);
  margin-bottom: 20px;
}

.footer-tagline {
  color: rgba(234, 242, 248, 0.7);
  max-width: 320px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-links li { margin-bottom: 13px; }

.footer-links a {
  color: rgba(234, 242, 248, 0.7);
  font-size: 0.95rem;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-links a:hover { color: var(--white); padding-left: 4px; }

.footer-contact li {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 0.92rem;
  color: rgba(234, 242, 248, 0.7);
  line-height: 1.6;
}

.footer-contact svg { width: 17px; height: 17px; flex-shrink: 0; margin-top: 3px; color: #7FB4DE; }
.footer-contact a { color: rgba(234, 242, 248, 0.85); transition: color var(--transition-fast); }
.footer-contact a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 0;
  font-size: 0.85rem;
  color: rgba(234, 242, 248, 0.55);
  flex-wrap: wrap;
}

.footer-bottom-links { display: flex; gap: 22px; }
.footer-bottom-links a { color: rgba(234, 242, 248, 0.55); transition: color var(--transition-fast); }
.footer-bottom-links a:hover { color: var(--white); }

/* ============================ SCROLL TO TOP ================================ */
.scroll-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--primary-blue);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base), background-color var(--transition-fast);
  border: none;
}

.scroll-top-btn.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top-btn:hover { background: var(--dark-blue); transform: translateY(-3px); }
.scroll-top-btn svg { width: 20px; height: 20px; }

/* =========================== SR-ONLY / A11Y ================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body.no-scroll { overflow: hidden; }

/* ================================ RESPONSIVE ================================ */
@media (max-width: 1080px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col:first-child { grid-column: 1 / -1; }
}

@media (max-width: 880px) {
  :root { --header-height: 74px; --header-height-scrolled: 66px; }

  .main-nav { display: none; }
  .header-actions .btn-primary.header-cta { display: none; }
  .hamburger { display: flex; }

  .hero { min-height: 100vh; }
  .hero-content { padding-block: 60px 40px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { gap: 28px 40px; }

  .why-section, .services-section, .projects-section, .contact-section { padding: 80px 0; }

  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }

  .value-row { grid-template-columns: 48px 1fr; gap: 18px; padding: 26px 0; }
  .value-icon { width: 46px; height: 46px; }
  .value-icon svg { width: 22px; height: 22px; }

  .contact-card { padding: 28px; }

  .footer-grid { grid-template-columns: 1fr; gap: 40px; padding-bottom: 40px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; text-align: left; }

  .section-head.split { flex-direction: column; align-items: flex-start; gap: 16px; }
}

@media (max-width: 540px) {
  .container { padding-inline: 20px; }
  .hero h1 { font-size: clamp(2rem, 8vw, 2.6rem); }
  .hero-subtext { font-size: 1rem; }
  .hero-kicker { font-size: 0.76rem; padding: 8px 14px; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .modal-box { padding: 28px 22px; }
  .contact-card { padding: 22px; }
  .service-card { padding: 32px 24px; }
  .scroll-top-btn { width: 44px; height: 44px; bottom: 20px; right: 20px; }
}