:root {
  --navy-dark: #071931;
  --navy-primary: #0b2b54;
  --navy-light: #143e73;
  --sky-blue: #0284c7;
  --sky-blue-light: #38bdf8;
  --sky-blue-container: #e0f2fe;
  --electric-yellow: #f59e0b;
  --surface-light: #f8fafc;
  --surface-card: #ffffff;
  --surface-border: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --whatsapp-green: #25d366;
  --call-blue: #0284c7;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 14px rgba(11, 43, 84, 0.08);
  --shadow-lg: 0 10px 25px rgba(11, 43, 84, 0.12);
  --shadow-fab: 0 6px 18px rgba(0, 0, 0, 0.22);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: 'Hind Siliguri', sans-serif;
  color: var(--text-primary);
  background-color: var(--surface-light);
}

body {
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--navy-dark);
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #ffffff;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.brand-title {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--sky-blue-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--sky-blue-light);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-header-call {
  background-color: var(--sky-blue);
  color: #ffffff;
  padding: 6px 14px;
  border-radius: 20px;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.2s;
}

.btn-header-call:hover {
  opacity: 0.9;
}

/* Hero Section */
.hero-section {
  position: relative;
  background-color: var(--surface-light);
  padding-bottom: 2.5rem;
}

.cover-wrapper {
  position: relative;
  width: 100%;
  height: 280px;
  max-height: 400px;
  overflow: hidden;
}

@media (min-width: 768px) {
  .cover-wrapper {
    height: 360px;
  }
}

.cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(7, 25, 49, 0.45), rgba(7, 25, 49, 0.88));
}

.hero-profile-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: -65px;
  position: relative;
  z-index: 10;
  text-align: center;
}

.profile-avatar-wrap {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  border: 4px solid #ffffff;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  background-color: var(--navy-primary);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-title {
  margin-top: 14px;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--navy-dark);
}

.hero-subtitle {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--sky-blue);
  margin-top: 2px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.badge-blue {
  background-color: var(--sky-blue-container);
  color: var(--navy-primary);
}

.badge-yellow {
  background-color: #fef3c7;
  color: #b45309;
}

.hero-intro-card {
  margin-top: 18px;
  background: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  box-shadow: var(--shadow-sm);
  max-width: 760px;
  text-align: left;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--navy-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--navy-light);
}

.btn-secondary {
  background-color: var(--sky-blue);
  color: #ffffff;
}

.btn-secondary:hover {
  opacity: 0.92;
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--sky-blue);
  color: var(--sky-blue);
}

.btn-outline:hover {
  background-color: var(--sky-blue-container);
}

.btn-whatsapp {
  background-color: var(--whatsapp-green);
  color: #ffffff;
}

.btn-whatsapp:hover {
  opacity: 0.9;
}

/* Sections */
.section {
  padding: 3rem 0;
}

.section-header {
  margin-bottom: 1.75rem;
}

.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy-dark);
  position: relative;
  padding-left: 12px;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background-color: var(--sky-blue);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 0.98rem;
  color: var(--text-muted);
  margin-top: 4px;
  padding-left: 12px;
}

/* Card */
.card {
  background-color: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

/* About Grid */
.about-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}

@media (min-width: 640px) {
  .about-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

.about-feature-item {
  display: flex;
  gap: 12px;
}

.feature-icon-box {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--sky-blue-container);
  color: var(--navy-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  display: flex;
  flex-direction: column;
}

.service-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1rem;
}

.service-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.service-items-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-items-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.service-items-list li svg {
  color: var(--sky-blue);
  flex-shrink: 0;
  margin-top: 3px;
}

/* Gallery Section */
.gallery-notice {
  background-color: #f1f5f9;
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 1.5rem;
}

.filter-btn {
  background: var(--surface-card);
  border: 1px solid var(--surface-border);
  padding: 6px 16px;
  border-radius: 20px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.filter-btn.active {
  background-color: var(--navy-primary);
  color: #ffffff;
  border-color: var(--navy-primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gallery-item-card {
  background: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.gallery-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--navy-dark);
}

.gallery-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.gallery-item-card:hover .gallery-thumb-wrap img {
  transform: scale(1.04);
}

.gallery-tags {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  gap: 6px;
}

.gallery-tag {
  background: rgba(11, 43, 84, 0.9);
  color: #ffffff;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.gallery-tag-sample {
  background: rgba(245, 158, 11, 0.95);
  color: var(--navy-dark);
}

.gallery-info {
  padding: 16px;
}

.gallery-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-dark);
}

.gallery-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 4px;
  line-height: 1.5;
}

/* Modal Lightbox */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background-color: rgba(7, 25, 49, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--surface-border);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.modal-img-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
}

.modal-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-body {
  padding: 18px;
}

/* Experience List */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.experience-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

/* Location Coverage */
.area-tags {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.area-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px;
  border-radius: var(--radius-md);
  background-color: var(--surface-light);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background-color: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 14px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}

.channel-card:hover {
  transform: translateX(4px);
  border-color: var(--sky-blue);
}

.form-group {
  margin-bottom: 12px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.form-input, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--surface-border);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--sky-blue);
}

/* Reviews */
.reviews-empty {
  text-align: center;
  padding: 2rem;
}

/* Floating Contact FABs (Bottom-Right) */
.floating-contact-container {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.fab-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-fab);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.fab-btn:hover {
  transform: scale(1.08);
}

.fab-btn svg {
  width: 28px;
  height: 28px;
  fill: #ffffff;
}

.fab-call {
  background-color: var(--call-blue);
}

.fab-whatsapp {
  background-color: var(--whatsapp-green);
}

/* Footer */
.site-footer {
  background-color: var(--navy-dark);
  color: #ffffff;
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-bottom {
  border-top: 1px solid var(--navy-light);
  padding-top: 1.25rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}