:root {
    --c1: #F8FAFC;
    --c2: #D9EAFD;
    --c3: #BCCCDC;
    --c4: #9AA6B2;
    --ink: #1a2332;
    --ink-soft: #3d4f62;
    --accent: #2a6496;
    --max: 1200px;
    --text-body-lg: 1.2rem;
    --text-body: 1.125rem;
    --text-body-sm: 1.02rem;
    /* Ürün kartı yüzeyi (proj-card ile aynı) */
    --product-card-bg: rgba(255, 255, 255, 0.04);
    --product-card-border: rgba(188, 204, 220, 0.12);
    --product-card-bg-hover: rgba(255, 255, 255, 0.08);
    --product-card-border-hover: rgba(188, 204, 220, 0.28);
    --product-card-title: #BCCCDC;
    --product-card-desc: #7a8fa0;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--c1);
    color: var(--ink);
    font-family: 'Inter', sans-serif;
    font-size: var(--text-body-sm);
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
  }

  .container {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 2.5rem;
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(248,250,252,0.88);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--c3);
  }

  .nav-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 2.5rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .nav-left { display: flex; align-items: center; gap: 0.9rem; }

  .nav-techmax {
    display: flex;
    align-items: center;
    text-decoration: none;
    line-height: 1;
    flex-shrink: 0;
  }
  .nav-techmax-logo {
    height: 22px;
    width: auto;
    display: block;
  }

  .nav-divider { width: 1px; height: 1.4rem; background: rgba(26,35,50,0.15); }

  .nav-logo { font-weight: 800; font-size: 1.2rem; letter-spacing: -0.04em; color: var(--ink); text-decoration: none; }
  .nav-logo span { color: var(--accent); }

  .nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
  .nav-links > li { display: flex; align-items: center; }
  .nav-links a { font-size: 0.84rem; font-weight: 500; color: var(--ink-soft); text-decoration: none; transition: color 0.2s; display: flex; align-items: center; }
  .nav-links a:hover { color: var(--ink); }

  .nav-cta { background: var(--ink) !important; color: var(--c1) !important; padding: 0.45rem 1.1rem; border-radius: 100px; }
  .nav-cta:hover { background: var(--accent) !important; }

  /* ══ NAV DROPDOWN ══ */
  .nav-has-dropdown { position: relative; }
  .nav-has-dropdown > a { display: flex; align-items: center; gap: 0.25rem; }
  .nav-arrow { font-size: 0.65rem; transition: transform 0.2s; display: inline-block; }
  .nav-has-dropdown:hover .nav-arrow { transform: rotate(180deg); }
  .nav-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding-top: 0.75rem;
    min-width: 270px;
    list-style: none;
    z-index: 200;
  }
  .nav-has-dropdown:hover .nav-dropdown { display: block; }
  .nav-dropdown::before {
    content: '';
    position: absolute;
    top: 0.42rem;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 10px;
    height: 10px;
    background: #0d1b2a;
    border-left: 1px solid rgba(255,255,255,0.09);
    border-top: 1px solid rgba(255,255,255,0.09);
    z-index: 1;
  }
  .nav-dropdown-inner {
    background: #0d1b2a;
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: 12px;
    padding: 0.5rem 0;
    box-shadow: 0 20px 48px rgba(0,0,0,0.45);
    position: relative;
    z-index: 2;
  }
  .nav-dropdown li a {
    display: block;
    padding: 0.52rem 1.2rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
    border-radius: 7px;
    margin: 0.1rem 0.4rem;
    white-space: nowrap;
  }
  .nav-dropdown li a:hover { color: #fff; background: rgba(255,255,255,0.07); }

  /* ── Dil seçici (EN / TR) ── */
  .nav-lang { margin-left: 0.25rem; }
  .lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.38rem 0.7rem;
    border: 1px solid rgba(42, 100, 150, 0.55);
    border-radius: 4px;
    background: rgba(42, 100, 150, 0.04);
  }
  .lang-globe {
    flex-shrink: 0;
    color: var(--accent);
    opacity: 0.9;
  }
  .lang-btn {
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #94a3b8;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
  }
  .lang-btn:hover { color: var(--ink); }
  .lang-btn--active {
    color: var(--ink);
    font-weight: 700;
  }
  .lang-sep {
    font-size: 0.78rem;
    font-weight: 500;
    color: #94a3b8;
    user-select: none;
  }

  /* ══ HERO SLIDER ══ */
  .hero-slider {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
    padding-top: 64px;
    background: linear-gradient(135deg, #122131 0%, #06111d 60%, #2a5a8c 100%);
  }

  #heroCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
  }

  .service-hero #heroCanvas,
  .project-hero #heroCanvas {
    z-index: 1;
  }

  .slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 0.9s ease;
    pointer-events: none;
    z-index: 2;
  }
  .slide.active { opacity: 1; pointer-events: auto; }

  .slide-1 { background: transparent; }
  .slide-2 { background: transparent; }
  .slide-3 { background: transparent; }
  .slide-4 { background: linear-gradient(135deg, #0f1e2e 0%, #1e2d40 60%, #243650 100%); }

  .slide::before {
    content: '';
    position: absolute;
    right: -10%; top: 50%;
    transform: translateY(-50%);
    width: 65vw; height: 65vw;
    max-width: 800px; max-height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(217,234,253,0.08) 0%, transparent 70%);
    pointer-events: none;
  }

  .slide-inner {
    max-width: var(--max);
    width: 100%;
    margin: 0 auto;
    padding: 5rem 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    position: relative;
    z-index: 2;
  }

  .slide-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    background: rgba(217,234,253,0.12);
    border: 1px solid rgba(188,204,220,0.25);
    color: var(--c3);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.45rem 1.1rem;
    border-radius: 100px;
    margin-bottom: 1.75rem;
  }
  .slide-tag::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--c3);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }
  @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.4;transform:scale(0.7)} }

  .slide-content {
    max-width: 960px;
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease 0.3s, transform 0.7s ease 0.3s;
  }
  .slide.active .slide-content { opacity: 1; transform: translateY(0); }

  .slide-title {
    font-size: clamp(2.85rem, 5.2vw, 4.25rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    color: #fff;
    margin-bottom: 1.25rem;
  }
  .slide-title em { font-style: normal; color: var(--c3); }

  .slide-desc {
    font-size: var(--text-body);
    line-height: 1.75;
    color: rgba(188,204,220,0.8);
    font-weight: 300;
    margin-bottom: 2.25rem;
    max-width: 100%;
  }

  .slide-actions { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }

  .btn-primary {
    background: var(--c2);
    color: var(--ink);
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.8rem 1.8rem;
    border-radius: 100px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s, transform 0.2s;
    letter-spacing: -0.01em;
  }
  .btn-primary:hover { background: #fff; transform: translateY(-2px); }

  .btn-ghost-light {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--c3);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: color 0.2s, gap 0.2s;
  }
  .btn-ghost-light:hover { color: #fff; gap: 0.6rem; }

  .slide-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 1.75rem;
    border-top: 1px solid rgba(188,204,220,0.18);
  }
  .slide-stat-num { font-size: 1.6rem; font-weight: 800; color: #fff; letter-spacing: -0.04em; line-height: 1; margin-bottom: 0.2rem; }
  .slide-stat-label { font-size: 0.72rem; color: var(--c4); }

  /* slide visual */
  .slide-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateX(30px) scale(0.96);
    transition: opacity 0.8s ease 0.5s, transform 0.8s ease 0.5s;
  }
  .slide.active .slide-visual { opacity: 1; transform: translateX(0) scale(1); }

  .vis-panel {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(188,204,220,0.18);
    border-radius: 24px;
    padding: 2rem;
    width: 100%;
    max-width: 420px;
    backdrop-filter: blur(8px);
  }
  .vis-panel-title { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--c4); margin-bottom: 1.5rem; }

  .panel-bars { display: flex; flex-direction: column; gap: 1rem; }
  .panel-bar-row { display: flex; flex-direction: column; gap: 0.35rem; }
  .panel-bar-label { display: flex; justify-content: space-between; font-size: 0.76rem; color: rgba(188,204,220,0.7); }
  .panel-bar-track { height: 6px; background: rgba(255,255,255,0.08); border-radius: 100px; overflow: hidden; }
  .panel-bar-fill {
    height: 100%;
    border-radius: 100px;
    background: linear-gradient(90deg, var(--c3), var(--c2));
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 1.2s ease 0.8s;
  }
  .slide.active .panel-bar-fill { transform: scaleX(1); }

  .panel-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 1.25rem; }
  .panel-metric {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(188,204,220,0.12);
    border-radius: 14px;
    padding: 0.9rem;
  }
  .panel-metric-val { font-size: 1.4rem; font-weight: 700; color: #fff; letter-spacing: -0.04em; line-height: 1; margin-bottom: 0.25rem; }
  .panel-metric-label { font-size: 0.68rem; color: var(--c4); }

  .panel-steps { display: flex; flex-direction: column; gap: 0.6rem; }
  .panel-step {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.65rem 0.9rem;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    border: 1px solid rgba(188,204,220,0.1);
    opacity: 0; transform: translateX(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
  }
  .slide.active .panel-step:nth-child(1) { opacity:1; transform:translateX(0); transition-delay:0.7s; }
  .slide.active .panel-step:nth-child(2) { opacity:1; transform:translateX(0); transition-delay:0.85s; }
  .slide.active .panel-step:nth-child(3) { opacity:1; transform:translateX(0); transition-delay:1s; }
  .slide.active .panel-step:nth-child(4) { opacity:1; transform:translateX(0); transition-delay:1.15s; }

  .panel-step-icon { width: 32px; height: 32px; background: rgba(217,234,253,0.12); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; flex-shrink: 0; }
  .panel-step-text { font-size: var(--text-body-sm); color: rgba(248,250,252,0.8); font-weight: 400; }

  .panel-security { display: flex; flex-direction: column; align-items: center; gap: 1.25rem; padding: 1rem 0; }
  .panel-shield { width: 90px; height: 90px; background: radial-gradient(circle at 40% 35%, rgba(217,234,253,0.15), transparent 70%); border: 2px solid rgba(188,204,220,0.3); border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%; display: flex; align-items: center; justify-content: center; font-size: 2rem; }
  .panel-compliance { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
  .comp-badge { font-size: 0.7rem; font-weight: 600; padding: 0.25rem 0.65rem; border-radius: 100px; background: rgba(217,234,253,0.1); border: 1px solid rgba(188,204,220,0.2); color: var(--c3); }

  /* Controls */
  .slider-controls {
    position: absolute;
    bottom: 2.5rem; left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex; align-items: center; gap: 1.5rem;
  }
  .slider-dots { display: flex; gap: 0.5rem; align-items: center; }
  .dot { width: 8px; height: 8px; border-radius: 100px; background: rgba(188,204,220,0.35); cursor: pointer; transition: background 0.3s, width 0.3s; border: none; }
  .dot.active { background: var(--c3); width: 24px; }
  .slider-arrow { width: 38px; height: 38px; background: rgba(255,255,255,0.08); border: 1px solid rgba(188,204,220,0.2); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--c3); font-size: 1rem; transition: background 0.2s; user-select: none; }
  .slider-arrow:hover { background: rgba(255,255,255,0.15); }

  .slide-progress { position: absolute; bottom: 0; left: 0; height: 2px; background: var(--c3); z-index: 10; width: 0%; }

  /* ══ SECTIONS ══ */
  section { padding: 7rem 0; }

  .section-tag { font-size: 0.82rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.85rem; }
  .section-title { font-size: clamp(2.5rem, 4.5vw, 3.6rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1.1; color: var(--ink); margin-bottom: 1rem; }
  .section-sub { font-size: var(--text-body-lg); line-height: 1.75; color: var(--ink-soft); font-weight: 300; max-width: 540px; }

  /* ABOUT */
  .about { background: #fff; }
  .about .container {
    max-width: 1520px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  .about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
  }
  .about-content { max-width: 100%; }
  .about .section-sub { max-width: 100%; }
  .about-text { margin-top: 1.25rem; }
  .about-paragraph {
    font-size: var(--text-body-lg);
    line-height: 1.85;
    color: var(--ink-soft);
    font-weight: 300;
    margin-bottom: 1.25rem;
  }
  .about-paragraph:last-child { margin-bottom: 0; }

  .about-side { display: flex; width: 100%; }
  .about-card {
    width: 100%;
    background: rgba(217, 234, 253, 0.10);
    border: 1px solid rgba(188, 204, 220, 0.18);
    border-radius: 18px;
    padding: 1.7rem 1.5rem;
    position: relative;
    overflow: hidden;
  }
  .about-card::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(42, 100, 150, 0.22) 0%, transparent 60%);
    pointer-events: none;
  }
  .about-card-title {
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ink);
    font-size: 1.02rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
  }
  .about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    position: relative;
    z-index: 1;
  }
  .about-tags span {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--ink-soft);
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(188, 204, 220, 0.28);
    border-radius: 999px;
    padding: 0.45rem 0.7rem;
    line-height: 1.1;
  }
  .about-quote {
    margin-top: 1.35rem;
    font-size: 1rem;
    line-height: 1.45;
    color: var(--ink);
    font-weight: 800;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
  }

  /* SERVICES — BCG interactive cards */
  .services { background: #fff; }
  .services .container {
    max-width: 1520px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  .services-header { max-width: 680px; margin-bottom: 3.5rem; }
  .services .section-sub { max-width: 680px; }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.1rem;
  }

  /* ── Service Cards: tıklanabilir kart (projeler gibi) ── */
  a.service-card {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
  }

  .service-card {
    position: relative;
    overflow: hidden;
    height: 380px;
    border-radius: 2px;
    border: 1px solid rgba(26, 35, 50, 0.07);
    transition: box-shadow 0.4s ease;
  }

  .service-card:hover,
  .service-card:focus-within {
    box-shadow: 0 16px 48px rgba(26, 35, 50, 0.13);
  }

  /* Resim katmanı: hover'da görünür kalır */
  .service-card-media {
    position: absolute;
    inset: 0;
    overflow: hidden;
  }

  .service-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
  }

  .service-card:hover .service-card-media img,
  .service-card:focus-within .service-card-media img {
    transform: scale(1.04);
  }

  /* Panel: gradient overlay — metin her zaman görsel üstünde */
  .service-card-panel {
    position: absolute;
    inset: 0;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background: linear-gradient(to top, rgba(10,20,35,0.82) 0%, rgba(10,20,35,0.25) 45%, transparent 70%);
    transition: background 0.45s ease;
  }

  .service-card:hover .service-card-panel,
  .service-card:focus-within .service-card-panel {
    background: linear-gradient(to top, rgba(6,17,29,0.95) 0%, rgba(10,20,35,0.88) 55%, rgba(10,20,35,0.5) 100%);
  }

  /* Başlık ve metin: resim üstünde açık renk */
  .service-title {
    font-size: 1.18rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin: 0 0 0.5rem;
    text-shadow: 0 1px 12px rgba(0,0,0,0.35);
  }

  /* Açıklama ve CTA: default gizli, hover'da görsel üstünde belirir */
  .service-desc {
    font-size: var(--text-body-sm);
    line-height: 1.7;
    color: rgba(217,234,253,0.92);
    font-weight: 300;
    margin: 0 0 1.2rem;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.35s ease 0.05s, max-height 0.4s ease 0.05s;
  }

  .service-card:hover .service-desc,
  .service-card:focus-within .service-desc {
    opacity: 1;
    max-height: 12rem;
  }

  .service-cta {
    display: inline-flex;
    align-self: flex-start;
    padding: 0.6rem 1.3rem;
    background: var(--accent);
    color: var(--c1);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    border-radius: 100px;
    opacity: 0;
    transition: opacity 0.35s ease 0.1s, background 0.2s ease;
    pointer-events: none;
  }

  .service-card:hover .service-cta,
  .service-card:focus-visible .service-cta {
    opacity: 1;
  }

  .service-card:hover .service-cta {
    background: var(--ink);
  }

  /* PROCESS */
  .process { background: var(--c1); }

  /* ── PROJECTS ── */
  .projects {
    background: linear-gradient(135deg, #122131 0%, #06111d 60%, #2a5a8c 100%);
    padding: 5rem 0;
  }

  .projects-header {
    text-align: center;
    margin-bottom: 3.5rem;
  }

  .projects .section-tag { color: var(--c3); }

  .projects-title {
    font-size: clamp(2.6rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    color: #fff;
    margin: 0.5rem 0 2rem;
    white-space: nowrap;
  }

  .projects-keywords {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
  }

  .projects-keywords span {
    font-size: clamp(1rem, 2vw, 1.4rem);
    font-weight: 700;
    letter-spacing: 0.12em;
    color: rgba(188, 204, 220, 0.55);
  }

  .projects-keywords span:not(:last-child)::after {
    content: '·';
    margin-left: 2.5rem;
    color: rgba(188, 204, 220, 0.25);
  }

  .projects-container {
    max-width: 1440px;
    padding: 0 3rem;
  }

  /* ── Proje Kartları ── */
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  a.proj-card {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
  }

  .proj-card {
    display: flex;
    flex-direction: row;
    background: var(--product-card-bg);
    border: 1px solid var(--product-card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: background 0.3s, border-color 0.3s, transform 0.3s;
  }

  .proj-card:hover {
    background: var(--product-card-bg-hover);
    border-color: var(--product-card-border-hover);
    transform: translateY(-4px);
  }

  .proj-card--wide {
    grid-column: 1 / -1;
  }

  .proj-card-img {
    width: 160px;
    flex-shrink: 0;
    overflow: hidden;
  }

  .proj-card--wide .proj-card-img {
    width: 220px;
  }

  .proj-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.45s ease;
  }

  .proj-card:hover .proj-card-img img {
    transform: scale(1.05);
  }

  .proj-card-body {
    padding: 1.5rem 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.6rem;
  }

  .proj-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--product-card-title);
    letter-spacing: -0.02em;
    line-height: 1.25;
  }

  .proj-card-sub {
    font-size: 0.75rem;
    font-weight: 400;
    color: #5b7a90;
    margin-left: 0.4rem;
    letter-spacing: 0;
  }

  .proj-card-desc {
    font-size: var(--text-body-sm);
    line-height: 1.65;
    color: var(--product-card-desc);
    font-weight: 300;
  }

  .proj-card-cta {
    display: inline-flex;
    align-self: flex-start;
    margin-top: 0.4rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: #5b8db8;
    text-decoration: none;
    letter-spacing: 0.02em;
    transition: color 0.2s, gap 0.2s;
  }

  .proj-card-cta:hover { color: #BCCCDC; }
  .process-inner { display: grid; grid-template-columns: 1fr 2fr; gap: 5rem; align-items: start; }
  .process-steps { display: flex; flex-direction: column; }
  .process-step { display: grid; grid-template-columns: 44px 1fr; gap: 1.1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--c3); opacity: 0; transform: translateX(-16px); transition: opacity 0.5s, transform 0.5s; }
  .process-step.visible { opacity: 1; transform: translateX(0); }
  .step-num  { font-size: 0.8rem; font-weight: 700; color: var(--c4); letter-spacing: 0.04em; padding-top: 0.2rem; }
  .step-arrow { font-size: 1.1rem; font-weight: 400; color: var(--accent); padding-top: 0.18rem; flex-shrink: 0; }
  .step-title { font-size: 1.08rem; font-weight: 700; color: var(--ink); margin-bottom: 0.35rem; letter-spacing: -0.02em; }
  .step-title-sub { font-size: 0.78rem; font-weight: 400; color: var(--ink-soft); letter-spacing: 0; margin-left: 0.4rem; }
  .step-desc { font-size: var(--text-body); color: var(--ink-soft); line-height: 1.7; font-weight: 300; }


  /* TESTIMONIALS */
  .testimonials { background: var(--ink); color: var(--c1); }
  .testimonials .section-title { color: var(--c1); }
  .testimonials .section-tag { color: var(--c3); }
  .testimonials .section-sub { color: var(--c3); }
  .testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3.5rem; }
  .testi-card { background: rgba(255,255,255,0.055); border: 1px solid rgba(188,204,220,0.13); border-radius: 18px; padding: 1.75rem; transition: background 0.25s; }
  .testi-card:hover { background: rgba(255,255,255,0.09); }
  .testi-stars { color: var(--c3); font-size: 0.75rem; margin-bottom: 0.9rem; letter-spacing: 0.1em; }
  .testi-text { font-size: var(--text-body-sm); line-height: 1.75; color: rgba(248,250,252,0.78); font-weight: 300; margin-bottom: 1.4rem; }
  .testi-author { display: flex; align-items: center; gap: 0.7rem; }
  .testi-avatar { width: 36px; height: 36px; background: var(--c3); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.75rem; color: var(--ink); flex-shrink: 0; }
  .testi-name { font-size: 0.8rem; font-weight: 700; color: var(--c1); }
  .testi-role { font-size: 0.7rem; color: var(--c4); }

  /* CTA — koyu bar (landing, projeler, hizmetler ortak) */
  .cta-section,
  .project-cta-bar,
  .service-cta-bar {
    background: linear-gradient(135deg, #122131 0%, #06111d 60%, #1e3a5f 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .cta-section { padding: 8rem 0; }
  .project-cta-bar,
  .service-cta-bar { padding: 4.5rem 0; }

  .cta-section::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 500px;
    background: radial-gradient(circle, rgba(217,234,253,0.08) 0%, transparent 65%);
    pointer-events: none;
  }

  .cta-section .section-tag,
  .project-cta-bar .section-tag,
  .service-cta-bar .section-tag { color: var(--c3); }

  .cta-section .section-title,
  .project-cta-bar .section-title,
  .service-cta-bar .section-title {
    color: #fff;
    max-width: 640px;
    margin: 0 auto 1rem;
  }

  .cta-section .section-sub,
  .project-cta-bar .section-sub,
  .service-cta-bar .section-sub {
    color: rgba(188,204,220,0.75);
    margin: 0 auto 2rem;
    text-align: center;
  }

  .cta-actions { display: flex; gap: 1rem; justify-content: center; align-items: center; position: relative; z-index: 1; }

  .btn-primary-dark {
    background: var(--ink);
    color: var(--c1);
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.8rem 1.8rem;
    border-radius: 100px;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s, transform 0.2s;
  }
  .btn-primary-dark:hover { background: var(--accent); transform: translateY(-2px); }

  .cta-section .btn-primary-dark,
  .project-cta-bar .btn-primary-dark {
    background: var(--c2);
    color: var(--ink);
  }
  .cta-section .btn-primary-dark:hover,
  .project-cta-bar .btn-primary-dark:hover {
    background: #fff;
    transform: translateY(-1px);
  }

  .btn-outline {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--ink);
    text-decoration: none;
    padding: 0.8rem 1.8rem;
    border-radius: 100px;
    border: 1.5px solid var(--c4);
    transition: border-color 0.2s, background 0.2s, color 0.2s;
  }
  .btn-outline:hover { border-color: var(--ink); background: white; }

  .cta-section .btn-outline {
    color: rgba(188,204,220,0.9);
    border-color: rgba(188,204,220,0.35);
    background: transparent;
  }
  .cta-section .btn-outline:hover {
    color: #fff;
    border-color: var(--c3);
    background: rgba(217,234,253,0.1);
  }

  /* FOOTER */
  footer { background: var(--ink); color: var(--c3); padding: 0 0 2.5rem; }
  .techmax-bar {
    border-top: 1px solid rgba(188, 204, 220, 0.12);
    padding: 2.75rem 0 2.25rem;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.15) 0%, transparent 100%);
  }
  .techmax-bar-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.35rem;
    text-align: center;
  }
  .techmax-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
  }
  .techmax-logo-box {
    width: 42px;
    height: 42px;
    border: 1px solid rgba(248, 250, 252, 0.28);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.15rem;
    color: #a78bfa;
    flex-shrink: 0;
  }
  .techmax-brand-text { text-align: left; }
  .techmax-brand-name {
    font-weight: 700;
    font-size: 1.02rem;
    color: var(--c1);
    letter-spacing: -0.02em;
  }
  .techmax-brand-tag {
    font-size: 0.72rem;
    color: var(--c4);
    font-family: ui-monospace, 'Cascadia Code', monospace;
    margin-top: 0.2rem;
  }
  .techmax-affiliation-msg {
    font-size: var(--text-body-sm);
    color: var(--c4);
    font-weight: 300;
    line-height: 1.65;
    max-width: 540px;
  }
  .affiliation-ess {
    color: var(--c1);
    font-weight: 600;
  }
  .techmax-affiliation-msg a {
    color: var(--c1);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
  }
  .techmax-affiliation-msg a:hover { color: #a78bfa; }
  .footer-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 1.75rem 2.5rem 0;
    border-top: 1px solid rgba(188, 204, 220, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .footer-logo { font-weight: 800; font-size: 1.05rem; color: var(--c1); letter-spacing: -0.03em; }
  .footer-logo span { color: var(--c3); }
  .footer-copy { font-size: 0.76rem; color: var(--c4); }
  .footer-links { display: flex; gap: 1.75rem; }
  .footer-links a { font-size: 0.76rem; color: var(--c4); text-decoration: none; transition: color 0.2s; }
  .footer-links a:hover { color: var(--c1); }

  /* REVEAL */
  .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s, transform 0.6s; }
  .reveal.visible { opacity: 1; transform: translateY(0); }

  /* RESPONSIVE */
  @media (max-width: 960px) {
    .nav-links { display: none; }
    .slide-inner { padding: 4rem 1.5rem; }
    .slide-content { max-width: 100%; }
    .slide-title { white-space: normal; }
    .slide-visual { display: none; }
    section { padding: 5rem 0; }
    .container { padding: 0 1.25rem; }
    .services-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
    .service-card { height: 320px; }
    .process-inner { grid-template-columns: 1fr; gap: 2rem; }
    .projects-title { white-space: normal; }
    .projects-keywords { gap: 1.2rem; }
    .projects-container { padding: 0 1.25rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .about-content { max-width: 100%; }
    .proj-card--wide { grid-column: 1; }
    .proj-card-img { width: 140px; }
    .proj-card--wide .proj-card-img { width: 140px; }
    .testi-grid { grid-template-columns: 1fr; }
    .techmax-bar { padding: 2rem 0 1.75rem; }
    .techmax-bar-inner { padding: 0 1.25rem; }
    .footer-inner { flex-direction: column; gap: 1.25rem; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
  }
  @media (max-width: 600px) {
    .services-grid { grid-template-columns: 1fr; }
    .slide-tag { font-size: 0.88rem; }
    .slide-title { font-size: 2.35rem; }
    .proj-card { flex-direction: column; }
    .proj-card-img, .proj-card--wide .proj-card-img { width: 100%; height: 180px; }
  }