/* ==========================================================================
   SOORYAVAMSHI SOLAR PROJECTS LLP - RESPONSIVE & MOBILE STYLES
   ========================================================================== */

/* --------------------------------------------------------------------------
   STICKY MOBILE BOTTOM CTA BAR
   -------------------------------------------------------------------------- */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
  background: #FFFFFF;
  padding: 8px 12px;
  box-shadow: 0 -4px 20px rgba(7, 59, 107, 0.15);
  border-top: 1px solid var(--color-border-light);
  z-index: var(--z-sticky);
  gap: 8px;
}

.mobile-sticky-bar .btn {
  flex: 1;
  min-width: 0;
  padding: 10px 8px;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  justify-content: center;
  gap: 6px;
  box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   BREAKPOINT: 1240px (Large Tablets / Compact Desktops)
   -------------------------------------------------------------------------- */
@media (max-width: 1240px) {
  .header-nav .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .nav-container {
    gap: 16px;
  }

  .nav-links-desktop {
    gap: 14px;
  }

  .nav-item-link {
    font-size: 0.88rem;
    padding: 6px 10px;
  }

  .nav-actions .btn {
    padding: 10px 16px;
    font-size: 0.84rem;
  }

  .hero-grid {
    gap: 36px;
  }
  
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .process-grid::before {
    display: none; /* Hide linear line on broken rows */
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

/* --------------------------------------------------------------------------
   BREAKPOINT: 992px (Tablets)
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  :root {
    --nav-height: 72px;
  }

  .section {
    padding: 68px 0;
  }

  .nav-links-desktop,
  .nav-actions .btn {
    display: none;
  }

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

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    text-align: center;
    gap: 40px;
  }

  .hero-content,
  .hero-visual-col {
    min-width: 0;
    max-width: 100%;
  }

  .hero-headline {
    font-size: 2.4rem;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
    max-width: 640px;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .trust-indicators-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .calc-grid-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .calc-input-pane {
    border-right: none;
    border-bottom: 1px solid var(--color-border-light);
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }

  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .stat-card:nth-child(2)::after {
    display: none;
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* --------------------------------------------------------------------------
   BREAKPOINT: 768px (Mobile Phones & Small Tablets)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --nav-height: 68px;
  }

  body {
    padding-bottom: 64px; /* Offset for sticky mobile bottom CTA */
  }

  .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .header-nav .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }

  .brand-logo-img {
    height: 44px;
    max-width: 120px;
  }

  .mobile-sticky-bar {
    display: flex;
  }

  .section {
    padding: 52px 0;
  }

  .section-tag {
    max-width: 100%;
    white-space: normal;
    text-align: center;
    line-height: 1.35;
    padding: 6px 14px;
    font-size: 0.72rem;
    box-sizing: border-box;
  }

  .section-title {
    font-size: 1.75rem;
    line-height: 1.25;
    word-break: break-word;
  }

  .section-subtitle {
    font-size: 0.92rem;
    line-height: 1.55;
  }

  .hero-section {
    padding: 28px 0 48px;
  }

  .hero-headline {
    font-size: 2rem;
    line-height: 1.22;
    word-break: break-word;
  }

  .hero-subtitle {
    font-size: 1rem;
    line-height: 1.55;
    margin-bottom: 24px;
  }

  .btn {
    white-space: normal;
    text-align: center;
    max-width: 100%;
    word-break: break-word;
    box-sizing: border-box;
  }

  .btn-lg {
    padding: 14px 20px;
    font-size: 0.95rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 12px;
    margin-bottom: 28px;
  }

  .hero-cta-group .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-image-wrapper {
    max-width: 100%;
    box-sizing: border-box;
  }

  .hero-image-wrapper img {
    height: 260px;
    width: 100%;
    object-fit: cover;
  }

  .hero-floating-card {
    position: static;
    margin-top: 14px;
    max-width: 100%;
    animation: none;
    box-sizing: border-box;
  }

  .trust-indicators-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    width: 100%;
  }

  .trust-item {
    padding: 12px 14px;
    box-sizing: border-box;
  }

  .calc-container-wrap {
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
  }

  .calc-master-card {
    border-radius: var(--radius-lg);
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
  }

  .calc-input-pane,
  .calc-results-pane {
    padding: 24px 16px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    min-width: 0;
  }

  .calc-pane-title {
    font-size: 1.25rem;
  }

  .calc-hero-badge-wrap {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }

  .calc-metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
  }

  .calc-metric-box {
    padding: 12px 10px;
    min-width: 0;
    box-sizing: border-box;
  }

  .calc-metric-val {
    font-size: 1.15rem;
  }

  .calc-action-row {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .calc-action-row .btn {
    width: 100%;
    justify-content: center;
  }

  .feasibility-guide-card {
    border-radius: var(--radius-lg);
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
  }

  .feasibility-steps-pane,
  .feasibility-action-pane {
    padding: 24px 16px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    min-width: 0;
  }

  .feasibility-pane-title {
    font-size: 1.25rem;
  }

  .kseb-gateway-card,
  .kseb-bill-guide-box,
  .kseb-help-card {
    padding: 20px 16px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
  }

  .btn-kseb-portal-cta {
    font-size: 0.9rem;
    padding: 12px 14px;
    white-space: normal;
    line-height: 1.35;
    text-align: center;
    box-sizing: border-box;
  }

  .kseb-url-display {
    word-break: break-all;
    overflow-wrap: anywhere;
    font-size: 0.72rem;
  }

  .equipment-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .equipment-card {
    max-width: 100%;
    box-sizing: border-box;
  }

  .process-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .process-step-card {
    flex-direction: row;
    text-align: left;
    gap: 14px;
    padding: 16px 18px;
    box-sizing: border-box;
  }

  .process-number-circle {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .projects-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .project-card {
    max-width: 100%;
    box-sizing: border-box;
  }

  .about-features-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .stats-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .stat-card:not(:last-child)::after {
    display: none;
  }

  .stats-banner {
    padding: 32px 18px;
    margin-top: 40px;
    max-width: 100%;
    box-sizing: border-box;
  }

  .stats-banner::after {
    display: none; /* Avoid pseudo-element overflow on mobile */
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-card-info,
  .contact-form-wrapper {
    padding: 24px 16px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
  }

  .modal-card {
    max-height: 95vh;
    border-radius: var(--radius-lg);
    width: 94%;
    margin: 0 auto;
    box-sizing: border-box;
  }

  .modal-image-banner {
    height: 190px;
  }

  .modal-body {
    padding: 20px 16px;
  }

  .modal-specs-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .footer-bottom-bar {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
}

/* --------------------------------------------------------------------------
   BREAKPOINT: 480px (Compact Mobile)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .hero-headline {
    font-size: 1.8rem;
  }

  .preset-pills-row {
    gap: 6px;
  }

  .preset-pill {
    padding: 5px 9px;
    font-size: 0.74rem;
  }

  .calc-metrics-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .calc-field-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .calc-field-display {
    width: 100%;
    box-sizing: border-box;
  }

  .calc-field-display input {
    width: 100%;
  }

  .calc-slider-wrap {
    padding: 8px 0;
    margin: 14px 0 10px;
    touch-action: none;
  }

  .calc-range-slider {
    height: 48px;
    touch-action: none;
  }

  .calc-range-slider::-webkit-slider-thumb {
    width: 34px;
    height: 34px;
    margin-top: -12px;
  }

  .calc-range-slider::-moz-range-thumb {
    width: 34px;
    height: 34px;
  }

  .kseb-steps-timeline {
    padding-left: 0;
  }

  .kseb-step-item {
    gap: 12px;
  }

  .kseb-step-num {
    width: 36px;
    height: 36px;
    font-size: 0.82rem;
  }
}