/* -------------------------------------------------------------
       1. VARIABLES & BASE STYLES
       ------------------------------------------------------------- */
    :root {
      --bg-white: #ffffff;
      --bg-light-gray: #f8fafc;
      --accent-dark: #0f172a;
      --accent-brand: #2563eb;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --whatsapp-green: #25d366;
      --youtube-red: #ff0000;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
      background-color: var(--bg-white);
      color: var(--text-main);
      overflow-x: hidden;
      line-height: 1.6;
    }

    /* Scroll Reveal Animation */
    .scroll-reveal {
      opacity: 0;
      transform: translateY(50px);
      transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
      will-change: opacity, transform;
    }

    .scroll-reveal.reveal-active {
      opacity: 1;
      transform: translateY(0);
    }

    /* -------------------------------------------------------------
       2. REEDED / FLUTED FROSTED GLASS SLIDING GATE OVERLAY
       ------------------------------------------------------------- */
    .door-container {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      z-index: 9999;
      display: flex;
      pointer-events: none;
    }

    .door {
      width: 50vw;
      height: 100vh;
      background: rgba(255, 255, 255, 0.28);
      backdrop-filter: blur(16px) saturate(140%);
      -webkit-backdrop-filter: blur(16px) saturate(140%);
      background-image: repeating-linear-gradient(90deg,
          rgba(255, 255, 255, 0.45) 0px,
          rgba(255, 255, 255, 0.45) 8px,
          rgba(200, 210, 220, 0.25) 9px,
          rgba(255, 255, 255, 0.8) 15px,
          rgba(150, 165, 180, 0.2) 18px,
          rgba(255, 255, 255, 0.1) 22px);
      box-shadow: inset 0 0 40px rgba(255, 255, 255, 0.6), inset 0 0 15px rgba(0, 0, 0, 0.1);
      position: relative;
      will-change: transform;
      transition: transform 1.3s cubic-bezier(0.77, 0, 0.175, 1);
    }

    .door-left {
      border-right: 3px solid rgba(255, 255, 255, 0.85);
      box-shadow: 15px 0 30px rgba(0, 0, 0, 0.15), inset -2px 0 8px rgba(255, 255, 255, 0.8);
    }

    .door-right {
      border-left: 3px solid rgba(255, 255, 255, 0.85);
      box-shadow: -15px 0 30px rgba(0, 0, 0, 0.15), inset 2px 0 8px rgba(255, 255, 255, 0.8);
    }

    .door-left::after,
    .door-right::before {
      content: '';
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 6px;
      height: 140px;
      background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 50%, #ffffff 100%);
      box-shadow: 0 0 12px rgba(255, 255, 255, 0.8), 0 2px 8px rgba(0, 0, 0, 0.2);
      border-radius: 4px;
    }

    .door-left::after {
      right: 18px;
    }

    .door-right::before {
      left: 18px;
    }

    .door-container.open .door-left {
      transform: translateX(-100%);
    }

    .door-container.open .door-right {
      transform: translateX(100%);
    }

    /* -------------------------------------------------------------
       3. DYNAMIC NAVBAR WITH MULTI-LEVEL DROPDOWN
       ------------------------------------------------------------- */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: transparent;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .nav-container {
      max-width: 1250px;
      margin: 0 auto;
      padding: 1.2rem 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .nav-brand {
      font-size: 1.4rem;
      font-weight: 900;
      letter-spacing: 2px;
      color: #ffffff;
      text-decoration: none;
      text-transform: uppercase;
      display: flex;
      align-items: center;
      gap: 0.6rem;
      transition: color 0.3s ease;
    }

    .nav-brand-logo {
      height: 36px;
      width: auto;
      max-width: 40px;
      object-fit: contain;
      border-radius: 4px;
      transition: transform 0.3s ease;
    }

    .nav-brand:hover .nav-brand-logo {
      transform: scale(1.05);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 2.2rem;
      list-style: none;
    }

    .nav-item {
      position: relative;
    }

    .nav-link {
      text-decoration: none;
      color: #ffffff;
      font-size: 0.9rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      transition: color 0.3s ease;
      display: flex;
      align-items: center;
      gap: 0.3rem;
      cursor: pointer;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--accent-brand);
    }

    .dropdown-arrow,
    .nested-icon {
      font-size: 0.65rem;
      transition: transform 0.3s ease;
    }

    /* Primary Dropdown Menu */
    .dropdown-menu {
      position: absolute;
      top: 100%;
      left: 0;
      min-width: 230px;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      padding: 0.6rem 0;
      list-style: none;
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
      z-index: 1001;
    }

    .nav-item.dropdown:hover .dropdown-menu {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

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

    .dropdown-item a {
      display: block;
      padding: 0.6rem 1.2rem;
      color: #ffffff;
      font-size: 0.82rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      text-decoration: none;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .dropdown-item a:hover,
    .dropdown-item a.active {
      background-color: var(--accent-brand);
      color: #ffffff;
      padding-left: 1.5rem;
    }

    /* Nested Sub-Dropdown Menu */
    .dropdown-item.nested-dropdown {
      position: relative;
    }

    .nested-link {
      display: flex !important;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      cursor: pointer;
    }

    .sub-dropdown-menu {
      position: absolute;
      top: 0;
      left: 100%;
      min-width: 210px;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      padding: 0.6rem 0;
      list-style: none;
      opacity: 0;
      visibility: hidden;
      transform: translateX(10px);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
      z-index: 1002;
    }

    .sub-dropdown-item a {
      display: block;
      padding: 0.6rem 1.2rem;
      color: #ffffff;
      font-size: 0.82rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    .sub-dropdown-item a:hover,
    .sub-dropdown-item a.active {
      background-color: var(--accent-brand);
      color: #ffffff;
      padding-left: 1.5rem;
    }

    .dropdown-item.nested-dropdown:hover .sub-dropdown-menu {
      opacity: 1;
      visibility: visible;
      transform: translateX(0);
    }

    .dropdown-item.nested-dropdown:hover .nested-icon {
      transform: translateX(3px);
    }

    /* Scrolled Navbar Modifiers */
    .navbar.scrolled {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    }

    .navbar.scrolled .nav-brand,
    .navbar.scrolled .nav-link {
      color: var(--accent-dark);
    }

    .navbar.scrolled .nav-link:hover,
    .navbar.scrolled .nav-link.active {
      color: var(--accent-brand);
    }

    .navbar.scrolled .dropdown-menu,
    .navbar.scrolled .sub-dropdown-menu {
      background: rgba(255, 255, 255, 0.98);
      border-color: var(--border-color);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    }

    .navbar.scrolled .dropdown-item a,
    .navbar.scrolled .sub-dropdown-item a {
      color: var(--accent-dark);
    }

    .navbar.scrolled .dropdown-item a:hover,
    .navbar.scrolled .sub-dropdown-item a:hover {
      background-color: var(--accent-brand);
      color: #ffffff;
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
    }

    .nav-toggle span {
      display: block;
      width: 25px;
      height: 2px;
      background-color: #ffffff;
      margin: 5px 0;
      transition: all 0.3s ease;
    }

    .navbar.scrolled .nav-toggle span {
      background-color: var(--accent-dark);
    }

    /* -------------------------------------------------------------
       4. HERO SECTION WITH BACKGROUND VIDEO
       ------------------------------------------------------------- */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 9rem 2rem 4rem;
      overflow: hidden;
      color: #ffffff;
    }

    .video-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 0;
    }

    .hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(180deg,
          rgba(15, 23, 42, 0.65) 0%,
          rgba(15, 23, 42, 0.45) 50%,
          rgba(15, 23, 42, 0.85) 100%);
      z-index: 1;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      opacity: 0;
      transform: translateY(20px) scale(0.96);
      transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.4s,
        transform 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.4s;
    }

    .hero-content.visible {
      opacity: 1;
      transform: translateY(0) scale(1);
    }

    .hero h1 {
      font-size: clamp(2.5rem, 5vw, 4.5rem);
      line-height: 1.15;
      margin-bottom: 1.5rem;
      font-weight: 800;
      text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    }

    .hero p {
      font-size: 1.2rem;
      color: #e2e8f0;
      max-width: 750px;
      margin: 0 auto 2.5rem;
      text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    }

    .cta-group {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      justify-content: center;
    }

    .btn {
      padding: 0.9rem 2.2rem;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 9999px;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .btn-primary {
      background: var(--accent-brand);
      color: #ffffff;
      border: none;
      box-shadow: 0 4px 18px rgba(37, 99, 235, 0.4);
    }

    .btn-primary:hover {
      background: #1d4ed8;
      transform: translateY(-3px);
      box-shadow: 0 8px 24px rgba(37, 99, 235, 0.5);
    }

    /* -------------------------------------------------------------
       5. LEGACY / ABOUT SECTION
       ------------------------------------------------------------- */
    .legacy-section {
      background-color: #fcfcfc;
      padding: 8rem 2rem;
      border-bottom: 1px solid var(--border-color);
    }

    .legacy-container {
      max-width: 1250px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      gap: 3.5rem;
      align-items: center;
    }

    .legacy-content {
      width: 100%;
    }

    .legacy-subhead {
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 3px;
      color: #64748b;
      text-transform: uppercase;
      margin-bottom: 1.5rem;
    }

    .legacy-title {
      font-size: clamp(2.2rem, 3.5vw, 3rem);
      font-weight: 800;
      line-height: 1.2;
      color: var(--accent-dark);
      text-transform: uppercase;
      letter-spacing: -0.5px;
      margin-bottom: 2rem;
    }

    .legacy-description {
      font-size: 1.05rem;
      line-height: 1.8;
      color: #475569;
      margin-bottom: 1.5rem;
    }

    .legacy-link {
      display: inline-block;
      margin-top: 1.5rem;
      font-weight: 800;
      font-size: 0.9rem;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--accent-dark);
      text-decoration: none;
      padding-bottom: 4px;
      border-bottom: 2px solid var(--accent-dark);
      transition: color 0.3s ease, border-color 0.3s ease;
    }

    .legacy-link:hover {
      color: var(--accent-brand);
      border-color: var(--accent-brand);
    }

    /* Blue Vertical Separator Line */
    .legacy-divider {
      width: 2px;
      height: 100%;
      min-height: 280px;
      background-color: var(--accent-brand);
      border-radius: 2px;
    }

    /* Right Section: Two Business Divisions */
    .legacy-bodies {
      display: flex;
      flex-direction: column;
      gap: 2rem;
      width: 100%;
    }

    .legacy-body-card {
      background: #ffffff;
      padding: 1.8rem 2rem;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .legacy-body-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 25px rgba(37, 99, 235, 0.08);
      border-color: #cbd5e1;
    }

    .legacy-body-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--accent-dark);
      text-transform: uppercase;
      margin-bottom: 0.6rem;
      letter-spacing: -0.3px;
    }

    .legacy-body-desc {
      font-size: 0.95rem;
      line-height: 1.7;
      color: #475569;
    }

    /* -------------------------------------------------------------
       6. ARCHITECTURAL PRODUCTS SECTION (3-BESIDE-EACH-OTHER GRID)
       ------------------------------------------------------------- */
    .arch-products-section {
      background-color: var(--bg-light-gray);
      padding: 7rem 2rem;
      border-bottom: 1px solid var(--border-color);
    }

    .arch-container {
      max-width: 1300px;
      margin: 0 auto;
    }

    .arch-header {
      margin-bottom: 3rem;
    }

    .arch-subhead {
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 3px;
      color: #64748b;
      text-transform: uppercase;
      margin-bottom: 0.8rem;
    }

    .arch-title {
      font-size: clamp(2.2rem, 4vw, 3.2rem);
      font-weight: 800;
      color: var(--accent-dark);
      text-transform: uppercase;
      letter-spacing: -0.5px;
    }

    /* 3 Cards Beside Each Other Layout */
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
      padding: 0.5rem 0 1.2rem;
    }

    .arch-card {
      width: 100%;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      display: flex;
      flex-direction: column;
      border-radius: 8px;
      overflow: hidden;
      transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
    }

    .arch-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 35px rgba(0, 0, 0, 0.08);
      border-color: #cbd5e1;
    }

    .arch-card-media {
      width: 100%;
      height: 260px;
      background-color: #f1f5f9;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      border-bottom: 1px solid #e2e8f0;
    }

    .arch-card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .arch-card:hover .arch-card-media img {
      transform: scale(1.05);
      filter: drop-shadow(0 12px 24px rgba(15, 23, 42, 0.15));
    }

    .arch-card-body {
      padding: 1.8rem 1.5rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
      justify-content: space-between;
      background: #ffffff;
    }

    .arch-card-header-row {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 0.8rem;
    }

    .arch-card-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--accent-dark);
      text-transform: uppercase;
      letter-spacing: -0.3px;
    }

    .arch-card-icon {
      font-size: 1.1rem;
      color: var(--accent-dark);
      transition: transform 0.3s ease;
    }

    .arch-card:hover .arch-card-icon {
      transform: translate(3px, -3px);
      color: var(--accent-brand);
    }

    .arch-card-desc {
      font-size: 0.92rem;
      line-height: 1.6;
      color: #475569;
      margin-bottom: 1.8rem;
    }

    .arch-card-explore {
      font-size: 0.8rem;
      font-weight: 800;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--accent-dark);
      text-decoration: none;
      display: inline-block;
      width: fit-content;
      padding-bottom: 3px;
      border-bottom: 1.5px solid var(--accent-dark);
      transition: color 0.3s ease, border-color 0.3s ease;
    }

    .arch-card-explore:hover {
      color: var(--accent-brand);
      border-color: var(--accent-brand);
    }

    /* Small, Optimal, Centered More Products Tile */
    .arch-card-more {
      grid-column: 1 / -1;
      justify-self: center;
      max-width: 440px;
      width: 100%;
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      border: 1px solid #1e293b;
      text-decoration: none;
      text-align: center;
      margin-top: 1rem;
    }

    .arch-card-more .arch-card-media {
      background: rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      height: 140px;
    }

    .arch-card-more .more-circle-icon {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease;
    }

    .arch-card-more:hover .more-circle-icon {
      transform: scale(1.15) rotate(45deg);
      background: var(--accent-brand);
      border-color: var(--accent-brand);
    }

    .arch-card-more .more-circle-icon svg {
      width: 24px;
      height: 24px;
      stroke: #ffffff;
      fill: none;
      stroke-width: 2.5;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .arch-card-more .arch-card-body {
      background: transparent;
      align-items: center;
      text-align: center;
    }

    .arch-card-more .arch-card-header-row {
      justify-content: center;
      gap: 0.6rem;
      margin-bottom: 0.6rem;
    }

    .arch-card-more .arch-card-title {
      color: #ffffff;
      font-size: 1.2rem;
    }

    .arch-card-more .arch-card-desc {
      color: #94a3b8;
      text-align: center;
      font-size: 0.88rem;
      margin-bottom: 1.2rem;
    }

    .arch-card-more .arch-card-explore {
      color: #60a5fa;
      border-color: #60a5fa;
      margin: 0 auto;
    }

    /* -------------------------------------------------------------
       7. OUR PROJECTS SECTION
       ------------------------------------------------------------- */
    .projects-outer-section {
      padding: 6rem 2rem;
      background-color: #ffffff;
      display: flex;
      justify-content: center;
    }

    .projects-container-box {
      width: 100%;
      max-width: 1250px;
      min-height: 480px;
      border: 2px solid transparent;
      padding: 3rem 2rem;
      position: relative;
      transition: border-color 0.6s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      border-radius: 12px;
    }

    .projects-container-box.active-border {
      border-color: #0f172a;
      justify-content: flex-start;
      background-color: var(--bg-light-gray);
    }

    .projects-trigger-box {
      background: #ffffff;
      border: 2px solid #0f172a;
      padding: 2.2rem 3.5rem;
      text-align: center;
      cursor: pointer;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
      border-radius: 8px;
      transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
      z-index: 10;
      user-select: none;
    }

    .projects-trigger-box:hover {
      transform: scale(1.05);
      box-shadow: 0 18px 40px rgba(0, 0, 0, 0.15);
    }

    .projects-trigger-title {
      font-size: 2rem;
      font-weight: 800;
      color: #0f172a;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 0.4rem;
    }

    .projects-trigger-subtitle {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      text-transform: lowercase;
    }

    .projects-header-row {
      display: none;
      width: 100%;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2.5rem;
      opacity: 0;
      transform: translateY(-20px);
      transition: opacity 0.5s ease 0.2s, transform 0.5s ease 0.2s;
    }

    .projects-container-box.active-border .projects-header-row {
      display: flex;
      opacity: 1;
      transform: translateY(0);
    }

    .projects-main-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: #0f172a;
      text-transform: uppercase;
    }

    .btn-hide-projects {
      background: #0f172a;
      color: #ffffff;
      border: none;
      padding: 0.6rem 1.4rem;
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      border-radius: 9999px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      transition: all 0.3s ease;
      box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
    }

    .btn-hide-projects:hover {
      background: var(--accent-brand);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    }

    .projects-scatter-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      width: 100%;
      position: relative;
    }

    .projects-footer-row {
      display: none;
      width: 100%;
      justify-content: center;
      align-items: center;
      margin-top: 2.5rem;
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.5s ease 0.3s, transform 0.5s ease 0.3s;
    }

    .projects-container-box.active-border .projects-footer-row {
      display: flex;
      opacity: 1;
      transform: translateY(0);
    }

    .btn-see-more {
      background: #0f172a;
      color: #ffffff;
      text-decoration: none;
      padding: 0.85rem 2.2rem;
      font-size: 0.9rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      border-radius: 9999px;
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: 0 4px 14px rgba(15, 23, 42, 0.15);
    }

    .btn-see-more:hover {
      background: var(--accent-brand);
      transform: translateY(-3px);
      box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35);
    }

    .project-card-item {
      text-decoration: none;
      color: inherit;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      padding: 1rem;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
      opacity: 0;
      position: absolute;
      top: 50%;
      left: 50%;
      width: 300px;
      transform: translate(-50%, -50%) scale(0.2) rotate(15deg);
      pointer-events: none;
      border-radius: 8px;
      transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .projects-container-box.active-border .project-card-item {
      position: relative;
      top: auto;
      left: auto;
      width: 100%;
      opacity: 1;
      transform: translate(0, 0) scale(1) rotate(0deg);
      pointer-events: auto;
    }

    .project-card-item:hover {
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
      border-color: #94a3b8;
      transform: translateY(-6px) !important;
    }

    .project-image-box {
      width: 100%;
      height: 200px;
      background-color: #f1f5f9;
      border: 1px dashed #cbd5e1;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      border-radius: 4px;
      position: relative;
    }

    .project-image-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      cursor: pointer;
      transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .project-card-item:hover .project-image-box img {
      transform: scale(1.06);
      filter: drop-shadow(0 10px 20px rgba(15, 23, 42, 0.3));
    }

    /* -------------------------------------------------------------
       8. VERTICALLY ALIGNED FLOATING ACTION ICONS
       ------------------------------------------------------------- */
    .floating-contact-container {
      position: fixed;
      bottom: 30px;
      right: 25px;
      z-index: 9990;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .floating-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease, background-color 0.3s ease;
      text-decoration: none;
    }

    .floating-btn:hover {
      transform: scale(1.12);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    }

    .float-call {
      background-color: var(--accent-brand);
    }

    .float-call:hover {
      background-color: #1d4ed8;
    }

    .float-whatsapp {
      background-color: var(--whatsapp-green);
    }

    .float-whatsapp:hover {
      background-color: #1fbe5c;
    }

    .float-youtube {
      background-color: var(--youtube-red);
    }

    .float-youtube:hover {
      background-color: #cc0000;
    }

    .floating-btn svg {
      width: 24px;
      height: 24px;
      fill: currentColor;
    }

    /* -------------------------------------------------------------
       9. FOOTER SECTION
       ------------------------------------------------------------- */
    .site-footer {
      background-color: #090d16;
      color: #94a3b8;
      padding: 5rem 2rem 3rem;
    }

    .footer-container {
      max-width: 1250px;
      margin: 0 auto;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.8fr 1fr 1fr 1fr;
      gap: 3.5rem;
      align-items: start;
      margin-bottom: 4rem;
    }

    .footer-brand-title {
      color: #ffffff;
      font-size: 1.8rem;
      font-weight: 900;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 1.2rem;
    }

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

    .footer-brand-desc {
      font-size: 0.95rem;
      line-height: 1.7;
      color: #94a3b8;
      max-width: 380px;
    }

    .footer-col-title {
      color: #ffffff;
      font-size: 0.85rem;
      font-weight: 800;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 1.5rem;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .footer-links-list a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.92rem;
      transition: color 0.3s ease;
    }

    .footer-links-list a:hover {
      color: #ffffff;
    }

    .footer-divider {
      width: 100%;
      height: 1px;
      background-color: #1e293b;
      margin-bottom: 2rem;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.88rem;
      color: #64748b;
    }

    /* -------------------------------------------------------------
       10. LIGHTBOX MODAL STYLES
       ------------------------------------------------------------- */
    .image-modal {
      display: flex;
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      z-index: 10000;
      background-color: rgba(9, 13, 22, 0.92);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .image-modal.active {
      opacity: 1;
      pointer-events: auto;
    }

    .modal-content-img {
      max-width: 90vw;
      max-height: 85vh;
      object-fit: contain;
      border-radius: 8px;
      box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
      transform: scale(0.92);
      transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .image-modal.active .modal-content-img {
      transform: scale(1);
    }

    .modal-close-btn {
      position: absolute;
      top: 25px;
      right: 30px;
      background: rgba(255, 255, 255, 0.12);
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.25);
      font-size: 2.2rem;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 1;
      transition: all 0.3s ease;
      z-index: 10001;
    }

    .modal-close-btn:hover {
      background: var(--accent-brand);
      border-color: var(--accent-brand);
      transform: scale(1.1) rotate(90deg);
    }

    /* -------------------------------------------------------------
       11. RESPONSIVE BREAKPOINTS
       ------------------------------------------------------------- */
    @media (max-width: 1024px) {
      .arch-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

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

      .legacy-divider {
        width: 100%;
        height: 2px;
        min-height: 2px;
      }

      .legacy-section,
      .arch-products-section,
      .projects-outer-section {
        padding: 5rem 1.5rem;
      }

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

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

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

      .arch-card-more {
        grid-column: span 1;
        max-width: 100%;
      }

      .floating-contact-container {
        bottom: 20px;
        right: 18px;
        gap: 10px;
      }

      .floating-btn {
        width: 46px;
        height: 46px;
      }

      .floating-btn svg {
        width: 20px;
        height: 20px;
      }

      .nav-menu {
        position: fixed;
        top: 73px;
        left: -100%;
        flex-direction: column;
        background-color: var(--bg-white);
        width: 100%;
        text-align: center;
        padding: 2rem 0;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
        transition: 0.3s ease;
        gap: 1.2rem;
        max-height: calc(100vh - 73px);
        overflow-y: auto;
      }

      .nav-menu.active {
        left: 0;
      }

      .nav-menu .nav-link {
        color: var(--accent-dark);
        justify-content: center;
      }

      .dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: transparent;
        box-shadow: none;
        border: none;
        padding: 0.5rem 0 0;
        display: none;
      }

      .nav-item.dropdown.mobile-open .dropdown-menu {
        display: block;
      }

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

      .dropdown-item a {
        color: var(--text-muted);
        text-align: center;
        padding: 0.5rem 0;
      }

      .sub-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-left: 3px solid var(--accent-brand);
        background: rgba(37, 99, 235, 0.05);
        border-radius: 0 8px 8px 0;
        margin: 0.6rem 2rem;
        padding: 0.5rem 0;
        display: none;
      }

      .sub-dropdown-item a {
        font-size: 0.82rem;
        padding: 0.45rem 1rem;
        color: var(--text-muted);
        text-align: center;
      }

      .sub-dropdown-item a::before {
        content: "↳ ";
        color: var(--accent-brand);
        font-weight: 700;
        margin-right: 4px;
      }

      .dropdown-item.nested-dropdown.mobile-sub-open .sub-dropdown-menu {
        display: block;
      }

      .dropdown-item.nested-dropdown.mobile-sub-open .nested-icon {
        transform: rotate(90deg);
      }

      .nested-link {
        justify-content: center;
      }

      .nav-toggle {
        display: block;
      }

      .hero h1 {
        font-size: 2.2rem;
      }

      .projects-scatter-grid {
        grid-template-columns: 1fr;
      }

      .projects-trigger-box {
        padding: 1.8rem 2.2rem;
      }

      .projects-trigger-title {
        font-size: 1.5rem;
      }

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

      .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
      }
    }

    /* -------------------------------------------------------------
       12. FEEDBACK & REVIEWS SECTION
       ------------------------------------------------------------- */
    .feedback-section {
        padding: 4rem 2rem 6rem;
        background-color: var(--bg-light-gray);
        border-top: 1px solid var(--border-color);
    }

    .feedback-container {
        max-width: 1250px;
        margin: 0 auto;
    }

    .feedback-header {
        text-align: center;
        margin-bottom: 3rem;
    }

    .feedback-header h2 {
        font-size: clamp(1.8rem, 3vw, 2.5rem);
        font-weight: 900;
        text-transform: uppercase;
        color: var(--accent-dark);
        letter-spacing: -0.5px;
        margin-bottom: 0.5rem;
    }

    .feedback-header p {
        color: var(--text-muted);
        font-size: 1rem;
        font-weight: 500;
    }

    .feedback-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 1.25rem;
        align-items: stretch;
    }

    .feedback-card {
        background: #ffffff;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        padding: 2rem 1.25rem;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        text-align: center;
        transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
            box-shadow 0.4s cubic-bezier(0.22, 1, 0.36, 1),
            border-color 0.4s ease;
    }

    .feedback-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 15px 30px rgba(15, 23, 42, 0.1);
        border-color: var(--accent-brand);
    }

    .feedback-stars {
        color: #f59e0b;
        font-size: 1.25rem;
        letter-spacing: 2px;
        margin-bottom: 1rem;
    }

    .feedback-comment {
        font-size: 0.88rem;
        color: #334155;
        line-height: 1.6;
        font-style: italic;
        margin-bottom: 1.5rem;
        flex-grow: 1;
    }

    .feedback-user {
        font-size: 0.95rem;
        font-weight: 700;
        color: var(--accent-dark);
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .feedback-card-cta {
        background: linear-gradient(135deg, var(--accent-dark), #1e293b);
        color: #ffffff;
        border-color: var(--accent-dark);
        text-decoration: none;
        cursor: pointer;
    }

    .feedback-card-cta:hover {
        background: linear-gradient(135deg, var(--accent-brand), #1d4ed8);
        border-color: var(--accent-brand);
        box-shadow: 0 18px 35px rgba(37, 99, 235, 0.3);
    }

    .feedback-card-cta .cta-icon {
        font-size: 1.8rem;
        color: #60a5fa;
        margin-bottom: 0.5rem;
    }

    .feedback-card-cta h3 {
        font-size: 1.15rem;
        font-weight: 800;
        color: #ffffff;
        text-transform: uppercase;
        margin-bottom: 0.5rem;
        line-height: 1.3;
    }

    .feedback-card-cta p {
        font-size: 0.82rem;
        color: #cbd5e1;
        margin-bottom: 1.5rem;
        flex-grow: 1;
    }

    .feedback-card-cta .cta-btn-text {
        display: inline-block;
        font-size: 0.85rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: #ffffff;
        background: rgba(255, 255, 255, 0.15);
        padding: 0.6rem 1rem;
        border-radius: 6px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        transition: background-color 0.3s ease;
    }

    .feedback-card-cta:hover .cta-btn-text {
        background: #ffffff;
        color: var(--accent-brand);
    }

    @media (max-width: 1024px) {
        .feedback-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    @media (max-width: 640px) {
        .feedback-grid {
            grid-template-columns: 1fr;
        }
    }