/* ==========================================================================
   VOLT'S LEGACY SOLAR - Responsive Breakpoints & Mobile Navigation
   ========================================================================== */

/* --------------------------------------------------------------------------
   Mobile Hamburger Toggle & Drawer
   -------------------------------------------------------------------------- */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
  color: var(--primary-900);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
  background: var(--gray-200);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 21, 48, 0.7);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 1500;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

/* Mobile Drawer Panel */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 85%;
  max-width: 380px;
  height: 100%;
  background: var(--white);
  z-index: 1600;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  overflow-y: auto;
}

.mobile-drawer.active {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--gray-200);
}

.mobile-drawer-logo {
  height: 52px;
  width: auto;
}

.mobile-drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-700);
}

.mobile-nav-list {
  list-style: none;
  padding: 1rem 0;
  display: flex;
  flex-direction: column;
}

.mobile-nav-item {
  border-bottom: 1px solid var(--gray-100);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--primary-900);
  text-decoration: none;
  width: 100%;
  text-align: left;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--blue-600);
  background: var(--blue-50);
}

.mobile-accordion-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

.mobile-nav-item.open .mobile-accordion-icon {
  transform: rotate(180deg);
}

.mobile-submenu {
  list-style: none;
  background: var(--gray-50);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 1.5rem;
}

.mobile-nav-item.open .mobile-submenu {
  max-height: 500px;
  padding: 0.75rem 1.5rem;
}

.mobile-submenu-item {
  margin: 0.5rem 0;
}

.mobile-submenu-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.4rem 0;
}

.mobile-submenu-link:hover {
  color: var(--blue-600);
}

.mobile-drawer-footer {
  padding: 1.5rem;
  margin-top: auto;
  border-top: 1px solid var(--gray-200);
}

.mobile-submenu-header {
  padding-left: 0.5rem;
  font-weight: 700;
  color: var(--solar-gold-600);
  margin-top: 0.35rem;
}

.mobile-submenu-indent {
  padding-left: 1.25rem;
}

.btn-w-full {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Responsive Media Queries
   -------------------------------------------------------------------------- */

/* Large Tablets & Small Laptops (<= 1180px) */
@media (max-width: 1180px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
  .footer-grid > div:last-child {
    grid-column: 1 / -1;
  }
}

/* Tablets (<= 1024px) */
@media (max-width: 1024px) {
  :root {
    --header-height: 76px;
  }

  .nav-desktop {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .header-actions .btn-quotation-header {
    display: none;
  }

  .split-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .quote-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .offerings-grid,
  .offerings-grid-5,
  .solutions-grid,
  .projects-grid,
  .trust-grid,
  .blogs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .contact-info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .social-app-buttons-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .solar-journey-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .solar-journey-track {
    display: none;
  }

  .pergola-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .process-steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-section {
    min-height: 580px;
  }

  .hero-controls {
    bottom: 1.5rem;
    right: 1.5rem;
  }
}

/* Small Tablets & Mobile Landscape (<= 768px) */
@media (max-width: 768px) {
  .section,
  .solar-journey-section,
  .on-grid-simulator-section {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
  }

  .section-header {
    margin-bottom: 1.25rem;
  }

  /* On-Grid Simulator Mobile Responsive */
  .og-control-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  .og-mode-toggle-group {
    width: 100%;
    display: flex;
  }

  .og-mode-btn {
    flex: 1;
    justify-content: center;
    padding: 0.55rem 0.75rem;
    font-size: 0.78rem;
  }

  .og-status-pill {
    width: 100%;
    justify-content: center;
    font-size: 0.75rem;
    padding: 0.5rem 0.85rem;
    text-align: center;
  }

  .og-simulation-stage {
    padding: 1rem 0.35rem;
    border-radius: 16px;
  }

  .og-telemetry-dashboard {
    padding: 1.5rem 1.25rem;
  }

  .og-telemetry-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .og-metrics-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .og-phases-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .og-results-strip {
    padding: 2rem 1.25rem;
  }

  .og-benefits-row {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .og-results-actions {
    flex-direction: column;
    width: 100%;
  }

  .og-results-actions .btn {
    width: 100%;
  }

  .hassle-free-headline-badge {
    padding: 0.6rem 1.25rem;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
  }

  .solar-journey-timeline {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    position: relative;
    padding-left: 1.5rem;
  }

  .solar-journey-timeline::before {
    content: '';
    position: absolute;
    top: 20px;
    bottom: 20px;
    left: 4px;
    width: 3px;
    background: linear-gradient(180deg, #3b82f6 0%, #f59e0b 50%, #10b981 100%);
    border-radius: 4px;
  }

  .solar-energy-flow-motif {
    padding: 0.75rem 1rem;
    gap: 0.6rem;
    font-size: 0.8rem;
  }

  .journey-trust-strip {
    padding: 1.75rem 1.25rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .govt-guideline-strip {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem;
  }

  .offerings-grid,
  .offerings-grid-5,
  .solutions-grid,
  .projects-grid,
  .trust-grid,
  .blogs-grid,
  .contact-info-grid {
    grid-template-columns: 1fr;
  }

  .pergola-showcase-section {
    padding: 1.75rem 1.25rem;
  }

  .pergola-photos-cluster {
    grid-template-columns: 1fr;
  }

  .process-steps-grid {
    grid-template-columns: 1fr;
  }

  .consulting-features-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .calc-results-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-bottom-links {
    justify-content: center;
  }

  .hero-content {
    padding: 1.5rem 0;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1.75rem;
  }

  .hero-controls {
    display: none;
  }

  .cta-banner {
    padding: 3rem 1.5rem;
  }
}

/* Small Mobile Devices (<= 480px) */
@media (max-width: 480px) {
  .brand-logo-img {
    height: 52px;
  }

  .container {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .cta-banner-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-banner-actions .btn {
    width: 100%;
  }

  .calculator-card,
  .quote-form-card {
    padding: 1.5rem;
  }

  .hassle-free-badge {
    padding: 0.5rem 1.25rem;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
  }
}

/* --------------------------------------------------------------------------
   Solar for Homes (/solar-for-homes) Responsive Breakpoints
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .sfh-hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sfh-trust-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .sfh-process-grid-6 {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .sfh-why-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfh-sizing-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfh-step-flow-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfh-loan-journey-5 {
    grid-template-columns: repeat(3, 1fr);
  }

  .sfh-timeline-grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }

  .sfh-space-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .sfhs-safety-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfh-calc-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sfh-idea-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfh-emi-calc-row {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfh-during-after-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfh-financing-grid,
  .sfh-comp-cards-grid,
  .sfh-3way-cards-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfh-3way-specs-bar {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .sfh-form-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .sfh-sidebar-card {
    position: static;
  }
}

@media (max-width: 768px) {
  .sfh-simple-survey-card {
    padding: 1.5rem 1.15rem;
  }

  .sfh-survey-ribbon {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
  }

  .sfh-form-row-2 {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .sfh-hero-title {
    font-size: 2.15rem;
  }

  .sfh-hero-text {
    font-size: 1rem;
  }

  .sfh-hero-actions {
    flex-direction: column;
  }

  .sfh-hero-actions .btn {
    width: 100%;
  }

  .sfh-trust-bar {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .sfh-subsidy-cards-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfh-process-grid-6 {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    position: relative;
    padding-left: 1.5rem;
  }

  .sfh-process-grid-6::before {
    content: '';
    position: absolute;
    top: 15px;
    bottom: 15px;
    left: 4px;
    width: 3px;
    background: linear-gradient(180deg, #3b82f6 0%, #f59e0b 50%, #10b981 100%);
    border-radius: 4px;
  }

  .sfh-why-grid-6 {
    grid-template-columns: 1fr;
  }

  .sfh-sizing-grid-4 {
    grid-template-columns: 1fr;
  }

  .sfh-step-flow-4 {
    grid-template-columns: 1fr;
  }

  .sfh-loan-journey-5 {
    grid-template-columns: 1fr;
  }

  .sfh-timeline-grid-6 {
    grid-template-columns: 1fr;
  }

  .sfh-roi-interactive-grid {
    grid-template-columns: 1fr;
  }

  .sfh-chart-grid {
    gap: 0.5rem;
    height: 200px;
    padding: 1.5rem 0.25rem 0;
  }

  .sfh-chart-bar-val {
    font-size: 0.68rem;
  }

  .sfh-chart-year-lbl {
    font-size: 0.75rem;
  }

  .sfh-calculator-card {
    padding: 1.75rem 1.25rem;
  }

  .sfh-calc-outputs-grid {
    grid-template-columns: 1fr;
  }

  .sfh-3way-specs-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .sfh-fin-metrics-grid {
    grid-template-columns: 1fr;
  }

  .sfh-space-list {
    grid-template-columns: 1fr;
  }

  .sfhs-safety-grid-4 {
    grid-template-columns: 1fr;
  }

  .sfh-cta-title {
    font-size: 1.85rem;
  }

  /* Housing Societies Page Responsive (SFHS) */
  .sfhs-hero-title {
    font-size: 2.15rem;
  }

  .sfhs-hero-text {
    font-size: 1rem;
  }

  .sfhs-hero-actions {
    flex-direction: column;
  }

  .sfhs-hero-actions .btn {
    width: 100%;
  }

  .sfhs-hero-trust-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .sfhs-idea-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfhs-uses-grid-6 {
    grid-template-columns: 1fr;
  }

  .sfhs-gov-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfhs-cfa-steps-grid-4 {
    grid-template-columns: 1fr;
  }

  .sfhs-process-grid-6 {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    position: relative;
    padding-left: 1.5rem;
  }

  .sfhs-process-grid-6::before {
    content: '';
    position: absolute;
    top: 15px;
    bottom: 15px;
    left: 4px;
    width: 3px;
    background: linear-gradient(180deg, #3b82f6 0%, #f59e0b 50%, #10b981 100%);
    border-radius: 4px;
  }

  .sfhs-reasons-grid-6 {
    grid-template-columns: 1fr;
  }

  .sfhs-models-grid-3 {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfhs-compare-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sfhs-decision-flow-5 {
    flex-direction: column;
    align-items: stretch;
  }

  .sfhs-decision-step {
    max-width: 100%;
    width: 100%;
  }

  .sfhs-decision-arrow {
    transform: rotate(90deg);
    text-align: center;
    margin: 0.25rem 0;
  }

  .sfhs-roof-grid-4 {
    grid-template-columns: 1fr;
  }

  .sfhs-after-journey-flow {
    flex-direction: column;
    align-items: stretch;
  }

  .sfhs-journey-step {
    justify-content: center;
  }

  .sfhs-journey-arrow {
    transform: rotate(90deg);
    text-align: center;
    margin: 0.2rem 0;
  }

  .sfhs-longterm-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-chart-bars {
    gap: 0.5rem;
    height: 200px;
    padding: 1.5rem 0.25rem 0;
  }

  .sfhs-bar-val {
    font-size: 0.68rem;
    top: -20px;
  }

  .sfhs-bar-lbl {
    font-size: 0.72rem;
  }

  .sfhs-calc-container {
    padding: 1.75rem 1.25rem;
  }

  .sfhs-calc-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .sfhs-outputs-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-example-card {
    padding: 1.5rem;
  }

  .sfhs-example-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-formula-pill {
    min-width: 100%;
  }

  .sfhs-cta-title {
    font-size: 1.85rem;
  }
}

@media (max-width: 992px) and (min-width: 769px) {
  .sfhs-hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sfhs-hero-trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-idea-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-uses-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-gov-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-cfa-steps-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-process-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-reasons-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-models-grid-3 {
    grid-template-columns: 1fr;
  }

  .sfhs-compare-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-roof-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-longterm-grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }

  .sfhs-calc-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 992px) {
  .sfhs-hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sfhs-trust-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-loads-problem-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .sfhs-uses-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-cfa-rules-grid {
    grid-template-columns: 1fr;
  }

  .preview-examples-row {
    grid-template-columns: 1fr;
  }

  .sfhs-calc-grid-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sfhs-3way-cards-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-reg-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sg-steps-grid-8 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-diagram-grid {
    grid-template-columns: 1fr;
  }

  .ev-solar-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-models-grid-3 {
    grid-template-columns: 1fr;
  }

  .checklist-grid-18 {
    grid-template-columns: repeat(2, 1fr);
  }

  .sfhs-quality-grid-3 {
    grid-template-columns: 1fr;
  }

  .sfhs-env-counters-card {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

@media (max-width: 768px) {
  .sfhs-trust-bar {
    grid-template-columns: 1fr;
  }

  .sfhs-loads-problem-grid {
    grid-template-columns: 1fr;
  }

  .sfhs-uses-grid-6 {
    grid-template-columns: 1fr;
  }

  .sfhs-8-metrics-grid {
    grid-template-columns: 1fr;
  }

  .soc-input-row-2,
  .soc-input-row-3 {
    grid-template-columns: 1fr;
  }

  .sfhs-reg-grid-4 {
    grid-template-columns: 1fr;
  }

  .sg-steps-grid-8 {
    grid-template-columns: 1fr;
  }

  .checklist-grid-18 {
    grid-template-columns: 1fr;
  }

  .sfh-form-row-2 {
    grid-template-columns: 1fr;
  }

  .sfhs-form-card {
    padding: 1.5rem;
  }

  .sfhs-full-calc-container {
    padding: 1.5rem 1.15rem;
  }

  .formula-math-flow {
    flex-direction: column;
    align-items: stretch;
  }

  .f-op {
    transform: rotate(90deg);
    text-align: center;
    margin: 0.25rem 0;
  }
}

@media (max-width: 576px) {
  .sfhs-longterm-grid-6 {
    grid-template-columns: 1fr;
  }

  .sfhs-hero-title {
    font-size: 1.85rem;
  }

  .sfhs-section-title {
    font-size: 1.6rem;
  }

  .sfhs-hero-floating-badge {
    position: static;
    margin-bottom: 0.5rem;
    display: inline-flex;
  }
}