/* ==========================================================================
   KERALA PEB STRUCTURES - MASTER STYLESHEET
   Design System: Dark Blue (#0B2545), Safety Orange (#FF6B00), Steel Grey (#6B7280)
   Typography: Poppins (Headings) & Inter (Body)
   ========================================================================== */

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

:root {
  /* Color Palette */
  --primary-navy: #0B2545;
  --dark-navy: #07172C;
  --accent-orange: #FF6B00;
  --accent-orange-hover: #E05E00;
  --steel-grey: #6B7280;
  --light-steel: #E2E8F0;
  --bg-light: #F8FAFC;
  --text-dark: #0F172A;
  --text-muted: #64748B;
  --text-light: #F8FAFC;
  --white: #FFFFFF;
  --glass-bg: rgba(11, 37, 69, 0.85);
  --glass-border: rgba(255, 255, 255, 0.12);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 25px -5px rgba(11, 37, 69, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 35px -10px rgba(11, 37, 69, 0.2);
  --shadow-glow: 0 0 25px rgba(255, 107, 0, 0.35);
  --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
}

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

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-dark);
  background-color: var(--bg-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary-navy);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Top Notification & Emergency Bar */
.top-bar {
  background: var(--dark-navy);
  color: var(--text-light);
  font-size: 0.85rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--glass-border);
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.top-contacts {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.top-contacts a {
  color: #CBD5E1;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.top-contacts a:hover {
  color: var(--accent-orange);
}
.top-badge {
  background: rgba(255, 107, 0, 0.15);
  color: var(--accent-orange);
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  border: 1px solid rgba(255, 107, 0, 0.3);
}

/* Header & Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--light-steel);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}
.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.brand-logo:hover {
  transform: translateY(-1px);
}

.logo-icon-wrap {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 4px 10px rgba(255, 107, 0, 0.25));
  transition: var(--transition-fast);
}

.brand-logo:hover .logo-icon-wrap {
  filter: drop-shadow(0 6px 16px rgba(255, 107, 0, 0.45));
  transform: scale(1.05);
}

.brand-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.4px;
  color: var(--primary-navy);
  white-space: nowrap;
}

.brand-title span {
  color: var(--accent-orange);
}




.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-item {
  position: relative;
  display: inline-block;
}

.nav-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--primary-navy);
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  text-decoration: none;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-orange);
  background: rgba(255, 107, 0, 0.06);
}

.arrow-down {
  font-size: 0.7rem;
  transition: transform 0.2s ease;
}

.nav-item:hover .arrow-down {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(11, 37, 69, 0.15);
  border-radius: var(--radius-md);
  border: 1px solid var(--light-steel);
  padding: 0.5rem 0;
  z-index: 2000;
}

.nav-item:hover .dropdown-menu {
  display: block;
  animation: fadeIn 0.2s ease-in-out;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  color: var(--text-dark);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-fast);
}

.dropdown-item:hover {
  background: #FFF7ED;
  color: var(--accent-orange);
  padding-left: 1.5rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}


.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
}
.btn-primary {
  background: var(--accent-orange);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(255, 107, 0, 0.35);
}
.btn-primary:hover {
  background: var(--accent-orange-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.btn-navy {
  background: var(--primary-navy);
  color: var(--white);
}
.btn-navy:hover {
  background: var(--dark-navy);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--primary-navy);
  color: var(--primary-navy);
}
.btn-outline:hover {
  background: var(--primary-navy);
  color: var(--white);
}
.btn-outline-light {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.4);
  color: var(--white);
}
.btn-outline-light:hover {
  background: var(--white);
  color: var(--primary-navy);
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, #07172C 0%, #0B2545 60%, #1E3A8A 100%);
  color: var(--white);
  padding: 5rem 0 6rem 0;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: radial-gradient(circle at 70% 30%, rgba(255, 107, 0, 0.12) 0%, transparent 60%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 107, 0, 0.18);
  border: 1px solid rgba(255, 107, 0, 0.4);
  color: #FF9E43;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.hero-title {
  font-size: 3.1rem;
  letter-spacing: -0.5px;
  color: var(--white);
  margin-bottom: 1.25rem;
  line-height: 1.15;
}
.hero-title span {
  color: var(--accent-orange);
  background: linear-gradient(90deg, #FF6B00, #FFA043);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.15rem;
  color: #CBD5E1;
  margin-bottom: 2rem;
  max-width: 600px;
}
.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.stat-box h4 {
  font-size: 1.8rem;
  color: var(--accent-orange);
}
.stat-box p {
  font-size: 0.8rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Quick Lead Card in Hero */
.hero-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
}
.hero-card h3 {
  color: var(--white);
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}
.hero-card p {
  color: #94A3B8;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}
.form-group {
  margin-bottom: 1rem;
}
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #E2E8F0;
  margin-bottom: 0.35rem;
}
.form-input, .form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: var(--white);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}
.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent-orange);
  background: rgba(255, 255, 255, 0.12);
}
.form-select option {
  background: var(--dark-navy);
  color: var(--white);
}

/* Section Common */
.section {
  padding: 5rem 0;
}
.section-light {
  background: var(--white);
}
.section-navy {
  background: var(--dark-navy);
  color: var(--white);
}
.section-navy h2, .section-navy h3 {
  color: var(--white);
}
.section-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 3.5rem auto;
}
.section-subtitle {
  color: var(--accent-orange);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  display: block;
}
.section-title {
  font-size: 2.3rem;
  margin-bottom: 1rem;
}
.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* PEB Cost Calculator Section */
.calc-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--light-steel);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
}
.calc-controls h3 {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
}
.slider-group {
  margin-bottom: 1.75rem;
}
.slider-header {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.slider-val {
  color: var(--accent-orange);
  font-weight: 700;
  font-size: 1.1rem;
}
.range-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--light-steel);
  outline: none;
  accent-color: var(--accent-orange);
}

.calc-summary {
  background: linear-gradient(145deg, var(--primary-navy), var(--dark-navy));
  color: var(--white);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.calc-price-display {
  margin: 1.5rem 0;
  padding: 1.5rem 0;
  border-top: 1px dashed rgba(255,255,255,0.2);
  border-bottom: 1px dashed rgba(255,255,255,0.2);
}
.price-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #94A3B8;
}
.price-val {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-orange);
  font-family: 'Poppins', sans-serif;
}
.calc-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: #CBD5E1;
}
.calc-breakdown-item {
  display: flex;
  justify-content: space-between;
}

/* PEB vs RCC Interactive Comparison */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.comparison-table th, .comparison-table td {
  padding: 1.25rem 1.5rem;
  text-align: left;
}
.comparison-table th {
  background: var(--primary-navy);
  color: var(--white);
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
}
.comparison-table th.peb-col {
  background: var(--accent-orange);
}
.comparison-table tr:nth-child(even) {
  background: var(--bg-light);
}
.comparison-table td {
  border-bottom: 1px solid var(--light-steel);
  font-size: 0.95rem;
}
.badge-winner {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
}

/* Service Cards & Grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--light-steel);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition-smooth);
  position: relative;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-orange);
}
.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 107, 0, 0.1);
  color: var(--accent-orange);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}
.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}
.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}
.service-link {
  color: var(--accent-orange);
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* Locations Filter Pills & Cards */
.location-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}
.location-tab {
  padding: 0.6rem 1.4rem;
  background: var(--white);
  border: 1px solid var(--light-steel);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
}
.location-tab:hover, .location-tab.active {
  background: var(--primary-navy);
  color: var(--white);
  border-color: var(--primary-navy);
  box-shadow: var(--shadow-sm);
}

.location-detail-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--light-steel);
  box-shadow: var(--shadow-md);
}

/* Project Cards */
.project-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--light-steel);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.project-img {
  width: 100%;
  height: 220px;
  background: var(--primary-navy);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  overflow: hidden;
}
.project-badge {
  position: absolute;
  top: 1rem; right: 1rem;
  background: var(--accent-orange);
  color: var(--white);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
}
.project-body {
  padding: 1.5rem;
}
.project-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* FAQs Accordion & Search */
.faq-search-box {
  max-width: 600px;
  margin: 0 auto 2.5rem auto;
  position: relative;
}
.faq-search-input {
  width: 100%;
  padding: 1rem 1.5rem 1rem 3rem;
  border: 2px solid var(--light-steel);
  border-radius: var(--radius-pill);
  font-size: 1rem;
  outline: none;
  transition: var(--transition-fast);
}
.faq-search-input:focus {
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 0, 0.15);
}
.faq-search-icon {
  position: absolute;
  left: 1.2rem; top: 50%;
  transform: translateY(-50%);
  color: var(--steel-grey);
}
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--light-steel);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  text-align: left;
  background: transparent;
  border: none;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--primary-navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-answer {
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--text-muted);
  display: none;
  font-size: 0.95rem;
  border-top: 1px solid #F1F5F9;
  padding-top: 1rem;
}
.faq-item.active .faq-answer {
  display: block;
}

/* Dynamic Views Shell */
.view-pane {
  display: none;
}
.view-pane.active-view {
  display: block;
}

/* SEO Visualizer & Technical Inspector Modal / Tab */
.seo-panel {
  background: #0F172A;
  color: #38BDF8;
  font-family: monospace;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}

/* Sticky Floating Contact Bar */
.floating-bar {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 2000;
}
.float-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-fast);
  cursor: pointer;
}
.float-btn:hover {
  transform: scale(1.1);
}
.float-whatsapp {
  background: #25D366;
}
.float-call {
  background: var(--accent-orange);
}

/* Footer */
.footer {
  background: var(--dark-navy);
  color: #94A3B8;
  padding: 5rem 0 2rem 0;
  border-top: 1px solid var(--glass-border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 2.5rem;
  margin-bottom: 4rem;
}
.footer-col h4 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}
.footer-links li {
  margin-bottom: 0.6rem;
}
.footer-links a {
  color: #CBD5E1;
  font-size: 0.9rem;
}
.footer-links a:hover {
  color: var(--accent-orange);
}
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(7, 23, 44, 0.85);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-overlay.active {
  display: flex;
}
.modal-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-lg);
}
.modal-close {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--steel-grey);
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--primary-navy);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid, .calc-box {
    grid-template-columns: 1fr;
  }
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-lg);
    border-bottom: 3px solid var(--accent-orange);
    z-index: 2500;
  }
  .nav-links.active {
    display: flex;
  }
  .dropdown-menu {
    position: static;
    display: block;
    box-shadow: none;
    border: none;
    padding: 0.5rem 0 0.5rem 1rem;
    background: #F8FAFC;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}