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

    :root {
      --navy: #2a2a2a;
      --white: #ffffff;
      --green: #4caf50;
      --transition: 0.3s ease;
    }

    body {
      font-family: 'Work Sans', sans-serif !important;
      background: var(--navy);
      overflow-x: hidden;
    }

    /* ── NAV ──────────────────────────────────────────────────── */
    .main-nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 22px 48px;
      background: transparent;
      transition: background 0.4s ease, padding 0.4s ease, box-shadow 0.4s ease;
    }
    .main-nav.scrolled {
      background: rgba(44,44,44,0.97);
      padding: 14px 48px;
      box-shadow: 0 2px 20px rgba(0,0,0,0.3);
      backdrop-filter: blur(8px);
    }
    .nav__brand { text-decoration: none; color: #fff; }
    .nav__links {
      display: flex; list-style: none; gap: 36px; margin: 0; padding: 0;
    }
    .nav__links a {
      font-size: 12px; font-weight: 400; letter-spacing: 0.14em;
      text-transform: uppercase; color: rgba(255,255,255,0.8);
      text-decoration: none; position: relative; transition: color 0.3s ease;
    }
    .nav__links a::after {
      content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
      height: 1px; background: var(--green);
      transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease;
    }
    .nav__links a:hover { color: #fff; }
    .nav__links a:hover::after,
    .nav__links a.active::after { transform: scaleX(1); }
    .nav__links a.active { color: #fff; }

    #menuOpen {
      background: none; border: none; color: #fff;
      font-size: 26px; cursor: pointer; display: none; padding: 4px;
    }

    /* ── MOBILE MENU ──────────────────────────────────────────── */
    .mobile-menu {
      display: none;
      position: fixed; top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(44,44,44,0.98); z-index: 190;
      flex-direction: column; align-items: center; justify-content: center; gap: 32px;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a {
      font-size: 22px; font-weight: 200; letter-spacing: 0.1em;
      text-transform: uppercase; color: rgba(255,255,255,0.85);
      text-decoration: none; transition: color 0.3s ease;
    }
    .mobile-menu a:hover, .mobile-menu a.active { color: #fff; }
    .mobile-menu__close {
      position: absolute; top: 20px; right: 24px;
      background: none; border: none; color: #fff; font-size: 32px; cursor: pointer;
    }

    /* ── HERO ─────────────────────────────────────────────────── */
    .hero {
      position: relative;
      width: 100%;
      height: 75vh;
      min-height: 420px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .hero__bg {
      position: absolute;
      inset: 0;
      background-image: url('../images/grid.png');
      background-size: cover;
      background-position: center;
      transform: scale(1.04);
      animation: zoomOut 10s ease forwards;
      z-index: 0;
    }
    @keyframes zoomOut {
      from { transform: scale(1.04); }
      to   { transform: scale(1.00); }
    }

    .hero__overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to right, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.2) 60%);
      z-index: 1;
    }

    .hero__content {
      position: relative;
      z-index: 5;
      padding: 16px 56px 0;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
      max-width: 760px;
    }

    .hero__breadcrumb {
      font-size: 14px; font-weight: 400; letter-spacing: 0.12em;
      color: rgba(255,255,255,0.6); text-transform: uppercase;
      margin-bottom: 20px; opacity: 0;
      animation: fadeUp 0.7s 0.15s ease forwards;
    }
    .hero__breadcrumb a { color: rgba(255,255,255,0.6); text-decoration: none; }
    .hero__breadcrumb a:hover { color: #fff; }
    .hero__breadcrumb span { color: var(--green); }

    .hero__heading {
      font-size: clamp(55px, 9vw, 99px);
      font-weight: 200; color: #fff;
      line-height: 1.0; letter-spacing: -0.03em;
      margin-bottom: 22px; opacity: 0;
      animation: fadeUp 0.8s 0.25s ease forwards;
    }

    .hero__sub {
      font-size: clamp(16px, 3vw, 18px);
      font-weight: 300; color: rgba(255,255,255,0.82);
      line-height: 1.7; margin-bottom: 32px;
      max-width: 520px; opacity: 0;
      animation: fadeUp 0.8s 0.4s ease forwards;
    }

      .btn-hero-outline {
      font-size: 11px; font-weight: 600; letter-spacing: 0.18em;
      text-transform: uppercase; color: #fff; background: transparent;
      border: 1.5px solid rgba(255,255,255,0.7); padding: 13px 30px;
      cursor: pointer; text-decoration: none; display: inline-block;
      transition: background var(--transition), border-color var(--transition);
      opacity: 0; animation: fadeUp 0.8s 0.5s ease forwards;
      width: fit-content;
    }
    .btn-hero-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; color: #fff; }


    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(18px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ── TABS NAV ─────────────────────────────────────────────── */
    .tabs-nav {
      background: #2a2a2a;
      display: flex;
      overflow-x: auto;
      scrollbar-width: none;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      position: sticky;
      top: 0;
      z-index: 90;
    }
    .tabs-nav::-webkit-scrollbar { display: none; }

    .tab-btn {
      flex: 0 0 auto;
      padding: 18px 32px;
      font-family: 'Work Sans', sans-serif;
      font-size: 12px; font-weight: 500;
      letter-spacing: 0.12em; text-transform: uppercase;
      color: rgba(255,255,255,0.55);
      background: none; border: none; cursor: pointer;
      border-bottom: 2px solid transparent;
      transition: color var(--transition), border-color var(--transition);
      white-space: nowrap;
    }
    .tab-btn:hover { color: rgba(255,255,255,0.85); }
    .tab-btn.active { color: #fff; border-bottom-color: var(--green); }

    /* ── PROJECT SECTIONS ─────────────────────────────────────── */
    .projects-wrapper {
      padding: 0 56px 80px;
      background: var(--navy);
    }

    .project-section { padding-top: 72px; display: none; }
    .project-section.active { display: block; }

    .project-section__header {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      margin-bottom: 40px;
      gap: 40px;
    }
    .project-section__header-left { flex: 1; }

    .project-section__title {
      font-size: clamp(42px, 5vw, 62px);
      font-weight: 200; color: #fff;
      letter-spacing: -0.02em; line-height: 1.0;
      margin-bottom: 16px;
    }

    .project-section__desc {
      font-size: 18px; font-weight: 300;
      color: rgba(255,255,255,0.65);
      line-height: 1.75; max-width: 500px;
    }

    .project-section__cta { flex: 0 0 auto; align-self: center; }

    .btn-section {
      font-size: 12px; font-weight: 600;
      letter-spacing: 0.2em; text-transform: uppercase;
      color: #fff; background: transparent;
      border: 1.5px solid rgba(255,255,255,0.5);
      padding: 14px 28px; cursor: pointer;
      text-decoration: none; display: inline-block;
      white-space: nowrap;
      transition: background var(--transition), border-color var(--transition);
    }
    .btn-section:hover {
      background: rgba(255,255,255,0.1);
      border-color: #fff; color: #fff;
    }

    .project-section__accent {
      width: 60px; height: 3px;
      background: var(--green); margin-bottom: 20px;
    }

    /* ── PROJECT GRID ─────────────────────────────────────────── */
    .project-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
    }
    .project-grid--two {
      grid-template-columns: repeat(2, 1fr);
      max-width: 720px;
    }

    .project-card {
      position: relative;
      aspect-ratio: 16 / 11;
      overflow: hidden;
      cursor: pointer;
      background: #1a1a1a;
    }

    .project-card__img {
      position: absolute; inset: 0;
      background-size: cover; background-position: center;
      transition: transform 0.6s ease;
    }
    .project-card:hover .project-card__img { transform: scale(1.06); }

    .project-card::before {
      content: ''; position: absolute; inset: 0;
      background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.0) 55%);
      z-index: 1; transition: background 0.4s ease;
    }
    .project-card:hover::before {
      background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.15) 55%);
    }

    .project-card__label {
      position: absolute; bottom: 0; left: 0; right: 0;
      z-index: 2; padding: 16px 18px;
    }

    .project-card__name {
      font-size: 18px; font-weight: 400; color: #fff;
      line-height: 1.3; margin-bottom: 0;
      transition: margin-bottom 0.3s ease;
    }
    .project-card:hover .project-card__name { margin-bottom: 8px; }

    .project-card__sub {
      font-size: 13px; font-weight: 300;
      color: rgba(255,255,255,0.7);
      max-height: 0; overflow: hidden; opacity: 0;
      transition: max-height 0.35s ease, opacity 0.3s ease 0.05s;
    }
    .project-card:hover .project-card__sub { max-height: 60px; opacity: 1; }

    /* ── FOOTER ───────────────────────────────────────────────── */
    .site-footer {
      background-color: #2a2a2a;
      color: rgba(255,255,255,0.75);
      font-family: 'Work Sans', sans-serif;
    }
    .footer-inner {
      display: grid;
      grid-template-columns: 1.2fr 1fr 0.8fr 1.4fr;
      gap: 48px; padding: 72px 64px 56px;
    }
    .footer-heading { font-size: 15px; font-weight: 500; color: #fff; letter-spacing: 0.04em; margin-bottom: 24px; }
    .footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
    .footer-links a { color: rgba(255,255,255,0.65); text-decoration: none; font-size: 14px; font-weight: 300; transition: color 0.25s ease; }
    .footer-links a:hover { color: #fff; }
    .footer-social-list a { display: flex; align-items: center; gap: 10px; }
    .footer-social-list i { font-size: 15px; }
    .footer-logo-placeholder { margin-bottom: 32px; }
    .footer-logo-placeholder img { max-width: 140px; height: auto; }
    .footer-office { margin-bottom: 24px; }
    .office-name { font-size: 13px; font-weight: 600; color: #fff; margin-bottom: 6px; }
    .footer-office p { font-size: 13px; font-weight: 300; line-height: 1.7; color: rgba(255,255,255,0.65); margin: 0 0 3px; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 18px 64px; font-size: 12px; font-weight: 300; color: rgba(255,255,255,0.35); }

    /* ── RESPONSIVE ───────────────────────────────────────────── */

    /* ≤1024px */
    @media (max-width: 1024px) {
      .main-nav { padding: 18px 32px; }
      .main-nav.scrolled { padding: 12px 32px; }
      .hero__content { padding: 16px 32px 0; }
      .projects-wrapper { padding: 0 32px 72px; }
      .project-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; padding: 48px 40px 40px; }
      .footer-bottom { padding: 18px 40px; }
    }

    /* ≤900px — hamburger */
    @media (max-width: 900px) {
      #menuOpen { display: block !important; }
      .nav__links { display: none; }
      .main-nav { padding: 16px 24px; }
      .main-nav.scrolled { padding: 12px 24px; }
    }

    /* ≤768px */
    @media (max-width: 768px) {
      .hero { min-height: 340px; height: 48vh; }
      .hero__content { padding: 16px 24px 0; max-width: 100%; }

      /* Tabs: smaller text, scroll hint */
      .tab-btn { padding: 14px 18px; font-size: 11px; letter-spacing: 0.08em; }

      .projects-wrapper { padding: 0 20px 56px; }
      .project-section { padding-top: 48px; }

      .project-section__header {
        flex-direction: column;
        gap: 20px;
        margin-bottom: 28px;
      }
      .project-section__cta { align-self: flex-start; }

      /* 2-col grid on tablet */
      .project-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
      .project-grid--two { grid-template-columns: repeat(2, 1fr); max-width: 100%; }

      /* Always show sub-label on touch */
      .project-card__name { margin-bottom: 6px !important; font-size: 13px; }
      .project-card__sub { max-height: 60px !important; opacity: 1 !important; font-size: 11px; }
      .project-card::before {
        background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.1) 60%) !important;
      }

      .footer-inner { grid-template-columns: 1fr 1fr; gap: 28px; padding: 40px 24px 32px; }
      .footer-bottom { padding: 16px 24px; }
    }

    /* ≤576px */
    @media (max-width: 576px) {
      .hero { min-height: 300px; height: 44vh; }

      /* Single column project grid */
      .project-grid,
      .project-grid--two {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      /* Taller cards so images have impact in single col */
      .project-card { aspect-ratio: 16 / 9; }

      .projects-wrapper { padding: 0 16px 48px; }
      .project-section { padding-top: 36px; }

      .footer-inner { grid-template-columns: 1fr; gap: 28px; padding: 36px 20px 28px; }
      .footer-bottom { padding: 14px 20px; }
      .footer-heading { margin-bottom: 16px; }

      .btn-section { width: 100%; text-align: center; padding: 14px 20px; }
    }

    /* ≤400px */
    @media (max-width: 400px) {
      .tab-btn { padding: 12px 14px; font-size: 10px; }
      .project-card { aspect-ratio: 4 / 3; }
    }