/* ==========================================================================
   BHOOMI SOLUTIONS - CSS DESIGN SYSTEM & STYLESHEET
   Brand Colors: Royal Electric Blue (#0052FF), Cyan (#00C6FF), Navy (#070D1E)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Brand Palette */
  --primary: #0052FF;
  --primary-hover: #0040CC;
  --primary-light: #EBF2FF;
  --cyan-accent: #00C6FF;
  --gradient-primary: linear-gradient(135deg, #0052FF 0%, #00C6FF 100%);
  --gradient-hover: linear-gradient(135deg, #0040CC 0%, #00A6E0 100%);
  --gradient-dark: linear-gradient(180deg, #070D1E 0%, #0D1733 100%);
  
  /* Backgrounds */
  --bg-body: #FFFFFF;
  --bg-alt: #F8FAFC;
  --bg-dark: #070D1E;
  --bg-dark-card: #0F1A38;
  --bg-card-light: #FFFFFF;

  /* Typography Colors */
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-light-muted: #94A3B8;
  --text-white: #FFFFFF;
  
  /* Borders & Shadows */
  --border-light: #E2E8F0;
  --border-dark: #1E293B;
  --shadow-sm: 0 2px 8px rgba(0, 82, 255, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 82, 255, 0.1);
  --shadow-lg: 0 16px 40px rgba(0, 82, 255, 0.15);
  --shadow-dark: 0 20px 50px rgba(0, 0, 0, 0.5);

  /* Radius & Transitions */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Container Utility */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(0, 82, 255, 0.08);
  color: var(--primary);
}

.pill-badge.dark {
  background: rgba(0, 198, 255, 0.12);
  color: var(--cyan-accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-white);
  box-shadow: 0 4px 16px rgba(0, 82, 255, 0.3);
}

.btn-primary:hover {
  background: var(--gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 82, 255, 0.45);
}

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

.btn-outline:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: var(--text-white);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

/* Header & Navigation Bar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.98);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: var(--transition);
}

.footer-logo-img {
  height: 42px;
  background: #ffffff;
  padding: 4px 8px;
  border-radius: 6px;
  mix-blend-mode: normal;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.logo-sub {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: var(--primary);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-main);
  cursor: pointer;
}

/* HERO SECTION */
.hero {
  padding: 150px 0 90px 0;
  background: radial-gradient(circle at 80% 20%, rgba(0, 198, 255, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 10% 70%, rgba(0, 82, 255, 0.05) 0%, transparent 50%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 580px;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  margin-bottom: 24px;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.hero-mascot-img {
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}

/* Floating AI Nodes around Hero Mascot */
.ai-node {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(226, 232, 240, 0.8);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
  animation: pulse-glow 4s ease-in-out infinite;
}

.ai-node:hover {
  transform: scale(1.05);
  border-color: var(--primary);
}

.ai-node-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.ai-node-text h5 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.ai-node-text p {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.node-understand { top: -4%; left: -2%; }
.node-reason { top: 6%; right: -6%; }
.node-act { bottom: 8%; left: -8%; }
.node-learn { bottom: 0%; right: -2%; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 8px 24px rgba(0, 82, 255, 0.1); }
  50% { box-shadow: 0 12px 32px rgba(0, 198, 255, 0.25); }
}

/* ABOUT SECTION (DARK NAVY THEME) */
.section-dark {
  background: var(--bg-dark);
  color: var(--text-white);
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 12px;
}

.title-underline {
  width: 50px;
  height: 4px;
  background: var(--primary);
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.about-description {
  font-size: 1.08rem;
  color: var(--text-light-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}

.about-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pillar-card {
  background: var(--bg-dark-card);
  padding: 24px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(0, 82, 255, 0.25);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 82, 255, 0.15);
  color: var(--cyan-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.pillar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
}

.pillar-text {
  font-size: 0.82rem;
  color: var(--text-light-muted);
  line-height: 1.5;
}

.about-visual-container {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-dark);
}

.about-chip-img {
  width: 100%;
  display: block;
  object-fit: cover;
  transition: var(--transition);
}

.about-chip-img:hover {
  transform: scale(1.03);
}

/* SOLUTIONS & INDUSTRIES SECTION */
.section-light {
  padding: 110px 0;
  background: var(--bg-alt);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px auto;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin: 12px 0;
  color: var(--text-main);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Industry Tabs Switcher */
.tabs-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  background: var(--bg-body);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn i {
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--primary);
  border-color: var(--primary-light);
}

.tab-btn.active {
  background: var(--bg-body);
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  position: relative;
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 3px;
  background: var(--primary);
  border-radius: var(--radius-full);
}

.tab-btn.active i {
  color: var(--primary);
}

/* Featured Project Card */
.featured-card {
  background: var(--bg-body);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  transition: var(--transition);
}

.featured-visual {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.featured-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
  display: block;
}

.metric-badge-floating {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  text-align: center;
  border: 1px solid rgba(0, 82, 255, 0.15);
}

.metric-badge-floating .val {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.metric-badge-floating .lbl {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
}

.featured-content h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 12px 0 16px 0;
  color: var(--text-main);
}

.featured-desc {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.6;
}

.checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 20px;
  margin-bottom: 32px;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-main);
}

.check-item i {
  color: var(--primary);
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* PROJECTS / CASE STUDIES GRID */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.project-card {
  background: var(--bg-body);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.project-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 10px;
}

.project-card h4 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text-main);
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.project-metric {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

/* WHY US SECTION METRICS */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.metric-card {
  background: var(--bg-dark-card);
  padding: 32px 24px;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.metric-num {
  font-size: 3rem;
  font-weight: 800;
  color: var(--cyan-accent);
  margin-bottom: 8px;
}

.metric-label {
  font-size: 0.9rem;
  color: var(--text-light-muted);
  font-weight: 500;
}

/* CONTACT SECTION & FORM */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-info-card {
  background: var(--bg-body);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-text h5 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.contact-form {
  background: var(--bg-body);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-light);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-main);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 82, 255, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* FOOTER */
.footer {
  background: var(--bg-dark);
  color: var(--text-light-muted);
  padding: 70px 0 30px 0;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.9rem;
  max-width: 320px;
  line-height: 1.6;
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-light-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--cyan-accent);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

/* MODAL STYLING */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 13, 30, 0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.modal-card {
  background: var(--bg-body);
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 100%;
  padding: 40px;
  position: relative;
  box-shadow: var(--shadow-dark);
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--bg-alt);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text-muted);
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
  .hero-grid, .about-grid, .featured-card, .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-title { font-size: 2.6rem; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 84px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 84px);
    background: var(--bg-body);
    flex-direction: column;
    padding: 40px;
    gap: 24px;
    transition: var(--transition);
  }
  .nav-links.active { left: 0; }
  .mobile-toggle { display: block; }
  .about-pillars { grid-template-columns: 1fr; }
  .checklist-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .metrics-row { grid-template-columns: 1fr; }
  .node-understand, .node-reason, .node-act, .node-learn { position: relative; top: auto; right: auto; bottom: auto; left: auto; margin-bottom: 8px; }
}