/* =============================================================
   RESPONSIVE  —  all breakpoints consolidated
   Breakpoints: 1100px · 900px · 700px · 600px
   ============================================================= */

/* ── 1100px: solutions two-col still fine; MR blocks start stacking ── */
@media (max-width: 1100px) {
  .mr-hero {
    grid-template-columns: 1fr;
    padding: 100px 6%;
  }

  .mr-hero h1 {
    font-size: 48px;
  }
}

/* ── 900px: all main sections stack to single column ── */
@media (max-width: 900px) {

  /* nav */
  .nav-links {
    position: fixed;
    top: 70px;
    right: -100%;
    background: rgba(5, 10, 25, 0.95);
    width: 220px;
    height: calc(100vh - 70px);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    transition: right 0.3s ease;
    backdrop-filter: blur(12px);
    z-index: var(--z-nav);
  }

  .nav-links.active {
    right: 0;
  }

  .menu-toggle {
    display: block;
  }

  /* index sections */
  .solutions-premium,
  .web3-section,
  .about-premium {
    grid-template-columns: 1fr;
    gap: 50px;
    padding: 80px 6%;
  }

  .solutions-left {
    text-align: center;
    align-items: center;
  }

  .solutions-left h2 {
    font-size: 52px;
  }

  .solutions-left p {
    max-width: 600px;
  }

  .web3-left {
    text-align: center;
  }

  .web3-left h2 {
    font-size: 52px;
  }

  .web3-right {
    align-items: center;
  }

  .web3-feature {
    max-width: 100%;
  }

  .stack-graphic {
    position: static;
    margin: 40px auto 60px;
  }

  .about-left {
    height: 300px;
  }

  .about-title {
    font-size: 56px;
  }

  .about-right {
    align-items: center;
    text-align: center;
  }

  .about-btn {
    width: 200px;
  }

  /* mr-solutions */
  .mr-block {
    grid-template-columns: 1fr;
  }

  .mr-cards {
    grid-template-columns: 1fr;
  }

  .mr-industries {
    gap: 80px;
  }

  /* defence / energy */
  .defence-content {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 80px 6%;
  }

  .aero-content {
    margin-left: 0;
  }

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

  .footer-bottom {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* ── 700px: mobile fine-tuning ── */
@media (max-width: 700px) {

  .solutions-premium,
  .web3-section,
  .about-premium {
    padding: 60px 5%;
  }

  .solutions-left h2 {
    font-size: 44px;
  }

  .solutions-left p {
    font-size: 16px;
  }

  .solution-card {
    padding: 28px 24px;
  }

  .solution-card svg {
    width: 38px;
    height: 38px;
  }

  .solution-card h3 {
    font-size: 21px;
  }

  .solution-card p {
    font-size: 14px;
  }
}

/* ── 600px: small phones ── */
@media (max-width: 600px) {
  .hero h1 {
    font-size: 44px;
  }

  .web3-left h2 {
    font-size: 40px;
  }

  .web3-feature {
    padding: 24px 20px 24px 24px;
    margin-top: 24px;
  }

  .web3-feature h4 {
    font-size: 22px;
  }

  .web3-feature p {
    font-size: 14px;
  }

  .stack-graphic {
    width: 100px;
    height: 100px;
  }

  .mr-hero h1 {
    font-size: 38px;
  }

  .mr-text h2 {
    font-size: 32px;
  }

  .mr-exp-title {
    font-size: 36px;
  }

  .mr-card {
    padding: 28px;
  }

  .defence-hero h1 {
    font-size: 40px;
  }

  .defence-cta h2 {
    font-size: 28px;
  }

  .energy-hero h1 {
    font-size: 44px;
  }
}

/* =============================================================
   INVESTOR RESPONSIVE FIX
   ============================================================= */

/* ===== Investor Mobile Fix ===== */
@media (max-width: 900px) {

  .ir-layout {
    grid-template-columns: 1fr;
    padding: 120px 20px 60px;
    gap: 30px;
  }

  .ir-content {
    max-width: 100%;
  }

  .ir-content h1 {
    font-size: 28px;
    margin-bottom: 30px;
  }

  .ir-year h3 {
    font-size: 18px;
    margin-bottom: 16px;
  }

  .ir-files {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .ir-file {
    width: 100%;
    padding: 12px 14px;
    font-size: 14px;
    border-radius: 8px;
    background: rgba(15, 20, 35, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }

}


@media (max-width: 900px) {
  .ir-sidebar ul {
    display: flex;
    overflow-x: auto;
    gap: 12px;
  }

  .ir-sidebar li {
    white-space: nowrap;
    padding: 10px 14px;
    font-size: 14px;
  }
}