* { box-sizing: border-box; margin: 0; padding: 0; }
    html { overflow-x: hidden; }
    body { font-family: "Plus Jakarta Sans", sans-serif; background: radial-gradient(circle at 8% 10%, rgba(127, 214, 241, 0.38) 0%, transparent 32%), radial-gradient(circle at 88% 12%, rgba(114, 173, 255, 0.3) 0%, transparent 30%), radial-gradient(circle at 52% 100%, rgba(166, 224, 255, 0.22), transparent 40%), linear-gradient(180deg, #f7fcff 0%, #ebf5ff 56%, #e4f0fb 100%), repeating-linear-gradient(0deg, rgba(255,255,255,0.2) 0 1px, rgba(57,95,122,0.03) 1px 2px, transparent 2px 6px), repeating-linear-gradient(90deg, rgba(255,255,255,0.12) 0 1px, rgba(57,95,122,0.02) 1px 2px, transparent 2px 10px); color: #1f2f36; overflow-x: hidden; background-attachment: fixed; scroll-padding-top: 112px; }
    .shell { width: 100%; max-width: none; margin: 0; padding: 112px clamp(16px, 3.5vw, 48px) 24px; min-height: 100vh; position: relative; z-index: 1; display: flex; flex-direction: column; }
    .shell-lines {
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: -1;
      opacity: 0.52;
      background:
        repeating-radial-gradient(ellipse at 22% 28%, rgba(96, 166, 214, 0.26) 0 1px, transparent 1px 9px),
        repeating-radial-gradient(ellipse at 72% 62%, rgba(118, 192, 224, 0.22) 0 1px, transparent 1px 12px),
        repeating-linear-gradient(14deg, rgba(126, 196, 225, 0.13) 0 1px, transparent 1px 18px);
      background-size: 280px 220px, 340px 280px, auto;
      background-position: 6% 12%, 84% 68%, center center;
      animation: none;
    }
    .ambient-strip {
      position: absolute;
      pointer-events: none;
      z-index: -1;
      border-radius: 20px;
      border: 1px solid rgba(133, 198, 223, 0.36);
      background: linear-gradient(120deg, rgba(226, 247, 255, 0.42), rgba(188, 223, 245, 0.2));
      box-shadow: 0 12px 24px rgba(41, 92, 118, 0.18), inset 0 1px 0 rgba(255,255,255,0.55);
      backdrop-filter: blur(2px);
    }
    .ambient-strip.l-one {
      width: clamp(200px, 26vw, 380px);
      height: clamp(48px, 5.8vw, 82px);
      left: -36px;
      top: 36%;
      transform: rotate(-13deg);
      animation: none;
    }
    .ambient-strip.l-two {
      width: clamp(160px, 20vw, 300px);
      height: clamp(36px, 4.2vw, 62px);
      right: 8%;
      bottom: 9%;
      transform: rotate(8deg);
      animation: none;
    }
    .ambient-strip.l-three {
      width: clamp(120px, 14vw, 220px);
      height: clamp(30px, 3.4vw, 46px);
      right: -18px;
      top: 22%;
      transform: rotate(-20deg);
      animation: none;
    }
    .ambient-strip.l-four {
      width: clamp(130px, 16vw, 240px);
      height: clamp(26px, 3vw, 40px);
      left: 22%;
      top: 18%;
      transform: rotate(14deg);
      animation: none;
    }
    .ambient-strip.l-five {
      width: clamp(150px, 18vw, 260px);
      height: clamp(28px, 3.2vw, 42px);
      right: 26%;
      bottom: 24%;
      transform: rotate(-8deg);
      animation: none;
    }
    .ambient-strip.l-six {
      width: clamp(110px, 13vw, 210px);
      height: clamp(24px, 2.8vw, 36px);
      left: 8%;
      bottom: 30%;
      transform: rotate(22deg);
      animation: none;
    }
    .shell::before,
    .shell::after {
      content: "";
      position: absolute;
      pointer-events: none;
      z-index: -1;
    }
    .shell::before {
      width: clamp(170px, 19vw, 250px);
      height: clamp(170px, 19vw, 250px);
      border-radius: 50%;
      background: radial-gradient(circle at 34% 30%, rgba(248, 255, 255, 0.82), rgba(207, 241, 255, 0.52) 62%, rgba(130, 194, 228, 0.18));
      border: 1px solid rgba(116, 177, 201, 0.34);
      box-shadow: 0 20px 34px rgba(34, 84, 105, 0.14);
      top: 136px;
      right: -84px;
    }
    .shell::after {
      width: clamp(48px, 4.5vw, 64px);
      height: clamp(260px, 28vw, 380px);
      border-radius: 14px;
      background: linear-gradient(180deg, rgba(135, 203, 236, 0.34), rgba(86, 162, 197, 0.2));
      border: 1px solid rgba(116, 177, 201, 0.25);
      bottom: -66px;
      left: 28px;
      transform: rotate(11deg);
      box-shadow: 0 10px 16px rgba(35, 74, 91, 0.15);
    }
    .topbar { --menu-accent: #1f9db0; --menu-panel-bg: #ecf9fc; --menu-panel-border: #93c9d1; --menu-panel-text: #15333a; --menu-drawer-bg: #e4f4f8; --menu-drawer-text: #17353b; --menu-drawer-subtext: #2a5660; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 8px 12px; border: 1px solid #93c9d1; border-bottom: 2px solid #1f9db0; background: linear-gradient(135deg, #eaf7fb 0%, #e2f2f8 48%, #eaf1fb 100%); position: fixed; top: 0; left: 0; right: 0; width: 100%; z-index: 1200; }
    .top-left { display: flex; align-items: center; gap: 112px; min-width: 0; flex: 1; }
    .brand { display: flex; align-items: center; gap: 6px; text-decoration: none; }
    .brand img { width: 74px; height: 46px; display: block; object-fit: contain; }
    .brand-text { font-family: "Space Grotesk", sans-serif; font-size: 1.16rem; font-weight: 900; letter-spacing: 0.06em; text-transform: uppercase; line-height: 1; color: #166f95; text-shadow: 0 1px 0 rgba(255,255,255,0.4), 0 2px 8px rgba(16,42,58,0.16); white-space: nowrap; }
    nav { display: flex; align-items: center; }
    .menu-list { list-style: none; display: flex; align-items: center; gap: 16px; }
    .menu-item { position: relative; }
    .menu-link { text-decoration: none; color: #232c34; font-size: .68rem; font-weight: 700; display: inline-block; padding: 4px 0; }
    .menu-link::after { content: " \25BE"; font-size: .54rem; color: #49535c; }
    .submenu { list-style: none; position: absolute; top: 100%; left: 0; min-width: 250px; background: linear-gradient(180deg, #f4f8fd 0%, #e8eef6 100%); border-top: 2px solid #1f9db0; box-shadow: 0 14px 24px rgba(16, 28, 38, .18); display: none; z-index: 50; }
    .submenu a { display: block; padding: 14px 16px; text-decoration: none; font-weight: 700; color: #1d2630; font-size: .92rem; }
    .submenu a:hover { background: linear-gradient(180deg, #e5edf7 0%, #d8e5f2 100%); }
    .menu-item:hover .submenu, .menu-item:focus-within .submenu { display: block; }
    .top-actions { display: flex; align-items: center; gap: 8px; }
    .divider { width: 1px; height: 20px; background: #3f7280; opacity: .65; }
    .menu-btn { border: 0; background: transparent; padding: 2px 4px; display: inline-flex; align-items: center; justify-content: center; }
    .menu-btn { border: 1px solid #5d96a3; border-radius: 2px; padding: 6px; }
    .icon { width: 16px; height: 16px; stroke: #2d353c; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

    .hero { margin: 24px; padding: 30px; border-radius: 22px; background: linear-gradient(130deg, #0f5c6e 0%, #1692a0 48%, #2a74b6 76%, #2f92c9 100%); color: #eefcff; border: 1px solid #86c9d1; position: relative; overflow: hidden; box-shadow: 0 20px 40px rgba(27, 114, 154, 0.24); animation: sweepLeft 760ms cubic-bezier(.2,.7,.2,1) both; }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 18% 28%, rgba(255,255,255,0.22), transparent 26%),
        radial-gradient(circle at 82% 72%, rgba(255,255,255,0.16), transparent 30%);
      pointer-events: none;
      z-index: 0;
    }
    .hero h1 { font-family: "Space Grotesk", sans-serif; font-size: clamp(1.8rem, 4vw, 2.8rem); }
    .hero p { margin-top: 10px; color: #d3f6fb; max-width: 900px; }
    .hero-kicker { display: inline-block; margin-right: 10px; padding: 5px 10px; border-radius: 999px; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: #0f5e6f; background: #e6fbff; vertical-align: middle; position: relative; }
    .hero-kicker::before { content: ""; position: absolute; inset: -5px; border: 1px dashed rgba(230,251,255,0.75); border-radius: 999px; }
    .hero-kicker::after { content: ""; position: absolute; width: 7px; height: 7px; border-radius: 50%; background: #ffffff; left: -2px; top: 50%; transform: translateY(-50%); box-shadow: 0 0 0 3px rgba(255,255,255,0.2); }
    .hero-accent { color: #ffffff; text-shadow: 0 8px 20px rgba(9, 48, 58, 0.35); position: relative; }
    .hero-accent::after { content: ""; position: absolute; left: -1px; right: -1px; bottom: -5px; height: 4px; border-radius: 999px; background: linear-gradient(90deg, rgba(255,255,255,0.2), rgba(230,251,255,0.85), rgba(255,255,255,0.2)); }
    .hero-symbol {
      position: absolute;
      right: 34px;
      bottom: 14px;
      width: clamp(150px, 24vw, 250px);
      height: clamp(150px, 24vw, 250px);
      background: url("/assets/hero-listening.svg") center/contain no-repeat;
      opacity: 0.36;
      filter: drop-shadow(0 8px 16px rgba(11, 61, 76, 0.3));
      pointer-events: none;
      user-select: none;
      z-index: 0;
    }
    .hero > *:not(.hero-symbol) { position: relative; z-index: 1; }
    .hero-steps { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
    .hero-steps li { display: flex; align-items: center; gap: 8px; padding: 8px 14px 8px 8px; border-radius: 999px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.3); color: #f1fbff; font-size: 0.86rem; font-weight: 600; }
    .hero-steps .step-num { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; background: #ffffff; color: #116e7c; font-size: 0.78rem; font-weight: 900; flex-shrink: 0; }
    .hero-progress { margin-top: 16px; max-width: 420px; }
    .hero-progress-track { height: 8px; border-radius: 999px; background: rgba(255,255,255,0.18); overflow: hidden; border: 1px solid rgba(255,255,255,0.28); }
    .hero-progress-fill { display: block; height: 100%; width: 0%; background: #ffffff; border-radius: 999px; transition: width 0.35s ease; }
    .hero-progress-row { margin-top: 6px; display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
    .hero-progress-text { color: #eefcff; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em; opacity: 0.92; }
    .hero-random { display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border-radius: 999px; background: #ffffff; color: #116e7c; border: 1px solid #ffffff; font-family: inherit; font-weight: 800; font-size: 0.82rem; letter-spacing: 0.03em; cursor: pointer; box-shadow: 0 8px 18px rgba(15, 116, 129, 0.22); transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease; }
    .hero-random:hover { transform: translateY(-1px); background: #f0fcff; box-shadow: 0 12px 22px rgba(15, 116, 129, 0.3); }
    .hero-random:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
    .hero-random::before { content: ""; width: 16px; height: 16px; background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23116e7c' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><rect x='3' y='3' width='18' height='18' rx='3'/><circle cx='8.5' cy='8.5' r='1.4' fill='%23116e7c'/><circle cx='15.5' cy='15.5' r='1.4' fill='%23116e7c'/><circle cx='15.5' cy='8.5' r='1.4' fill='%23116e7c'/><circle cx='8.5' cy='15.5' r='1.4' fill='%23116e7c'/><circle cx='12' cy='12' r='1.4' fill='%23116e7c'/></svg>") center/contain no-repeat; }
    .hero-switch-label { display: block; margin-top: 18px; color: #d3f6fb; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.85; }
    .hero-switch { width: 100%; margin-top: 8px; display: flex; gap: 8px; flex-wrap: wrap; }
    .hero-switch a {
      text-decoration: none;
      color: #eefdff;
      border: 1px solid rgba(255, 255, 255, 0.35);
      background: rgba(255, 255, 255, 0.12);
      padding: 9px 14px;
      border-radius: 999px;
      font-weight: 700;
      font-size: 0.86rem;
      position: relative;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(13, 58, 69, 0.16);
      transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
    }
    .hero-switch a:hover {
      transform: translateY(-2px);
      border-color: rgba(255, 255, 255, 0.72);
      background: rgba(255, 255, 255, 0.22);
    }
    .hero-switch a.active {
      background: #ffffff;
      color: #116e7c;
      border-color: #ffffff;
      box-shadow: 0 4px 10px rgba(16, 84, 99, 0.22);
    }
    .between-bar { margin: 4px 24px 12px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    .between-choose { margin: 0; color: #54707a; font-weight: 800; font-size: 0.95rem; letter-spacing: 0.06em; text-transform: uppercase; }
    .filter-wrap { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
    .test-search { padding: 11px 18px 11px 44px; border-radius: 999px; border: 2px solid #1aa1af; background: #ffffff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23127583' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='7'/><line x1='20' y1='20' x2='16.65' y2='16.65'/></svg>") no-repeat 16px center; background-size: 18px 18px; font-family: inherit; font-size: 0.95rem; font-weight: 600; color: #15333a; min-width: 280px; box-shadow: 0 8px 22px rgba(15, 116, 129, 0.16); transition: border-color 0.18s ease, box-shadow 0.18s ease; }
    .test-search::placeholder { color: #4f7e88; font-weight: 500; }
    .test-search:focus { outline: none; border-color: #0d6772; box-shadow: 0 0 0 4px rgba(26, 161, 175, 0.22), 0 8px 22px rgba(15, 116, 129, 0.16); }
    .test-search:hover { border-color: #127583; }
    .test-search-count { color: #4f7080; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }
    .tests-stack { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 0 24px; }
    .tests-empty { grid-column: 1 / -1; margin: 4px 0; padding: 28px; border-radius: 18px; background: rgba(255,255,255,0.86); border: 1px dashed #9dd6df; text-align: center; color: #4f7080; font-size: 0.95rem; font-weight: 600; }
    .section-links { margin: 0; background: linear-gradient(145deg, #ffffff, #f6fdff 48%, #f2f8ff 100%); border: 1px solid #c9e0e6; border-radius: 16px; padding: 22px; position: relative; overflow: hidden; box-shadow: 0 14px 28px rgba(38, 102, 122, 0.1); animation: revealRight 760ms cubic-bezier(.2,.7,.2,1) 100ms both; }
    .section-links.is-premium-locked {
      background: linear-gradient(145deg, rgba(255,255,255,0.86), rgba(246,253,255,0.84) 48%, rgba(242,248,255,0.82) 100%);
      border-color: #b8d7de;
      box-shadow: 0 20px 34px rgba(38, 102, 122, 0.1);
      padding-bottom: 22px;
    }
    .section-links::after {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      right: -60px;
      bottom: -80px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(31,157,176,0.2), transparent 68%);
      pointer-events: none;
    }
    .section-links::before {
      content: "";
      position: absolute;
      width: 4px;
      height: 86%;
      left: 0;
      top: 7%;
      border-radius: 4px;
      background: linear-gradient(180deg, #1f9db0, #2a74b6);
    }
    .section-links.cat-section1::before { background: linear-gradient(180deg, #1aa1af, #127583); }
    .section-links.cat-section2::before { background: linear-gradient(180deg, #2a74b6, #1d4f8c); }
    .section-links.cat-section3::before { background: linear-gradient(180deg, #5b5fd9, #3f43a8); }
    .section-links.cat-section4::before { background: linear-gradient(180deg, #9352c4, #6c3a93); }
    .section-links.cat-full::before { background: linear-gradient(180deg, #e08a2b, #a35614); }
    .section-links.is-premium-locked::before {
      background: linear-gradient(180deg, #7fb8c2, #99aecd);
    }
    .section-links.is-pulse {
      animation: cardPulse 2.2s ease-out;
    }
    @keyframes cardPulse {
      0%   { box-shadow: 0 14px 28px rgba(38, 102, 122, 0.1); }
      18%  { box-shadow: 0 0 0 4px rgba(31, 157, 176, 0.42), 0 22px 38px rgba(31, 157, 176, 0.32); }
      55%  { box-shadow: 0 0 0 2px rgba(31, 157, 176, 0.22), 0 18px 32px rgba(31, 157, 176, 0.18); }
      100% { box-shadow: 0 14px 28px rgba(38, 102, 122, 0.1); }
    }
    .status-icon {
      display: inline-block;
      margin-right: 5px;
      font-weight: 900;
      font-family: "Plus Jakarta Sans", system-ui, sans-serif;
    }
    .section-links.is-premium-locked::after {
      width: 280px;
      height: 280px;
      right: -80px;
      bottom: -120px;
      background: radial-gradient(circle, rgba(255,255,255,0.36), rgba(42,116,182,0.12) 42%, transparent 68%);
    }
    .premium-flag {
      position: absolute;
      top: 16px;
      right: 16px;
      z-index: 3;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 32px;
      padding: 0 14px;
      border-radius: 999px;
      background: linear-gradient(135deg, #ffffff, rgba(224, 244, 248, 0.94));
      border: 1px solid rgba(73, 127, 151, 0.22);
      color: #46646b;
      font-size: 0.72rem;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      box-shadow: 0 10px 18px rgba(53, 102, 118, 0.12);
      backdrop-filter: blur(6px);
    }
    .premium-flag::before {
      content: "LOCKED";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-right: 8px;
      padding: 4px 7px;
      border-radius: 999px;
      background: linear-gradient(135deg, #2a74b6, #1f9db0);
      color: #ffffff;
      font-size: 0.62rem;
      letter-spacing: 0.08em;
    }
    .section-links h2 { margin-bottom: 12px; font-size: 1.5rem; }
    .link-row { display: flex; gap: 4px; align-items: stretch; width: 100%; }
    .big-link { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex: 1; min-width: 0; height: 56px; box-sizing: border-box; text-decoration: none; color: #126879; font-weight: 800; font-size: 1.35rem; border: 1px solid #9dd6df; border-radius: 12px; padding: 0 18px; background: linear-gradient(110deg, #f2fcff, #eef8ff); }
    .big-link > span:first-child { white-space: nowrap; }
    .big-link:hover { background: linear-gradient(110deg, #e2f7fb, #e3f1ff); }
    .section-links.is-premium-locked .big-link,
    .section-links.is-premium-locked .start-btn,
    .section-links.is-premium-locked .test-overview-item,
    .section-links.is-premium-locked .test-status {
      filter: saturate(0.65);
      opacity: 0.5;
    }
    .start-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      min-width: 122px;
      height: 56px;
      padding: 0 22px;
      background: linear-gradient(135deg, #1aa1af, #127583);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.04rem;
      letter-spacing: 0.01em;
      border-radius: 16px;
      border: 1px solid #0d6772;
      white-space: nowrap;
      box-shadow: 0 14px 26px rgba(15, 116, 129, 0.2);
      transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
    }
    .start-btn:hover {
      filter: brightness(1.04);
      transform: translateY(-1px);
      box-shadow: 0 18px 28px rgba(15, 116, 129, 0.26);
    }
    .test-overview {
      margin-top: 12px;
      display: grid;
      gap: 8px;
    }
    .test-overview-title {
      color: #4c6d75;
      font-weight: 800;
      font-size: 0.7rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }
    .test-card-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }
    .test-status {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      min-height: clamp(24px, 2.2vw, 32px);
      margin-left: auto;
      margin-right: -8px;
      padding: clamp(2px, 0.35vw, 6px) clamp(10px, 1vw, 16px);
      border-radius: 999px;
      font-size: clamp(0.7rem, 0.28vw + 0.62rem, 0.86rem);
      font-weight: 700;
      line-height: 1.1;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      border: 1px solid #c9d6ef;
      background: rgba(245, 248, 255, 0.92);
      color: #55698f;
      white-space: nowrap;
    }
    .test-status.is-complete {
      border-color: #93c8b8;
      background: linear-gradient(180deg, #eefef7 0%, #e1f9ef 100%);
      color: #14634f;
    }
    .test-overview-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 8px;
    }
    .test-overview-item {
      border: 1px solid #d5e9ee;
      border-radius: 14px;
      background: linear-gradient(180deg, #fbfeff 0%, #f1fbff 100%);
      padding: 8px 10px;
      display: grid;
      gap: 3px;
    }
    .test-overview-item.is-wide {
      grid-column: 1 / -1;
    }
    .test-overview-label {
      color: #147788;
      font-size: 0.68rem;
      font-weight: 800;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }
    .test-overview-text {
      color: #28505b;
      font-size: 0.79rem;
      line-height: 1.35;
      font-weight: 700;
    }
    .section-links.is-premium-locked .test-overview-title,
    .section-links.is-premium-locked .test-overview-label,
    .section-links.is-premium-locked .test-overview-text {
      color: #6f858b;
    }
    .premium-overlay {
      position: relative;
      left: auto;
      right: auto;
      bottom: auto;
      z-index: 4;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-top: 16px;
      padding: 18px 18px 16px;
      border-radius: 20px;
      border: 1px solid rgba(97, 161, 180, 0.2);
      background:
        linear-gradient(135deg, rgba(255,255,255,0.9), rgba(236,248,252,0.84)),
        radial-gradient(circle at top right, rgba(42,116,182,0.14), transparent 32%);
      box-shadow: 0 20px 32px rgba(35, 95, 116, 0.12), inset 0 1px 0 rgba(255,255,255,0.82);
      backdrop-filter: blur(8px);
    }
    .premium-overlay::before {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: 20px;
      pointer-events: none;
      background: linear-gradient(120deg, rgba(255,255,255,0.12), transparent 36%, rgba(255,255,255,0.22) 62%, transparent 100%);
      opacity: 0.75;
    }
    .premium-copy {
      position: relative;
      min-width: 0;
      max-width: 360px;
    }
    .premium-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #1f7f91;
      font-size: 0.74rem;
      font-weight: 900;
      letter-spacing: 0.1em;
      text-transform: uppercase;
    }
    .premium-eyebrow::before {
      content: "";
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2a74b6, #1f9db0);
      box-shadow: 0 0 0 5px rgba(42, 116, 182, 0.12);
    }
    .premium-title {
      margin-top: 8px;
      color: #0f5663;
      font-family: "Space Grotesk", sans-serif;
      font-size: clamp(1.1rem, 2vw, 1.5rem);
      line-height: 1.12;
      letter-spacing: -0.01em;
    }
    .premium-text {
      margin-top: 6px;
      color: #36555e;
      font-size: 0.92rem;
      line-height: 1.55;
      font-weight: 800;
    }
    .premium-actions {
      position: relative;
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 10px;
      flex-shrink: 0;
    }
    .premium-note {
      color: #6d8790;
      font-size: 0.72rem;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }
    .premium-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      cursor: pointer;
      min-width: 156px;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 999px;
      background: linear-gradient(135deg, #1598a8, #2a74b6);
      color: #ffffff;
      font-size: 0.8rem;
      font-weight: 900;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      box-shadow: 0 14px 22px rgba(31, 114, 150, 0.2);
    }
    @keyframes sweepLeft {
      from { opacity: 0; transform: translateX(-56px) rotate(-2deg) scale(0.96); }
      to { opacity: 1; transform: translateX(0) rotate(0) scale(1); }
    }
    @keyframes revealRight {
      from { opacity: 0; transform: translateX(52px) scale(0.98); }
      to { opacity: 1; transform: translateX(0) scale(1); }
    }
    @keyframes sectionOpenPulse {
      0%, 100% { transform: scale(1); box-shadow: 0 2px 8px rgba(13, 58, 69, 0.16); }
      50% { transform: scale(1.03); box-shadow: 0 4px 12px rgba(13, 58, 69, 0.28); }
    }
    @keyframes sectionOpenSweep {
      0% { transform: translateX(-120%); opacity: 0; }
      20% { opacity: 1; }
      60% { opacity: 1; }
      100% { transform: translateX(120%); opacity: 0; }
    }
    @keyframes audioBadgeFloat {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-3px); }
    }
    @keyframes audioBadgeSpin {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }
    @keyframes audioBadgeDot {
      0% { left: -2px; top: 50%; transform: translateY(-50%); }
      25% { left: 50%; top: -2px; transform: translateX(-50%); }
      50% { left: calc(100% + 2px); top: 50%; transform: translateY(-50%); }
      75% { left: 50%; top: calc(100% + 2px); transform: translateX(-50%); }
      100% { left: -2px; top: 50%; transform: translateY(-50%); }
    }
    @keyframes audioAccentFlow {
      0% { opacity: 0.65; transform: scaleX(0.86); background-position: 0% 50%; }
      50% { opacity: 1; transform: scaleX(1); background-position: 100% 50%; }
      100% { opacity: 0.65; transform: scaleX(0.86); background-position: 200% 50%; }
    }
    @keyframes audioAccentDot {
      0% { left: -5px; }
      50% { left: calc(100% - 2px); }
      100% { left: -5px; }
    }
    @keyframes stickerFloatListen {
      0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.42; }
      50% { transform: translateY(-9px) rotate(-4deg); opacity: 0.58; }
    }
    @keyframes shellFlowListen {
      0% { background-position: 6% 12%, 84% 68%, center center; }
      50% { background-position: 12% 8%, 78% 74%, 40px 0; }
      100% { background-position: 6% 12%, 84% 68%, 80px 0; }
    }
    @keyframes lineDriftListen {
      from { background-position: 0 0, 0 0; }
      to { background-position: 0 0, 60px 0; }
    }
    @keyframes ambientListenOne {
      0% { transform: rotate(-13deg) translate(0, 0); opacity: 0.56; }
      20% { transform: rotate(-9deg) translate(18px, -14px); opacity: 0.72; }
      40% { transform: rotate(-16deg) translate(34px, 6px); opacity: 0.62; }
      60% { transform: rotate(-8deg) translate(10px, 22px); opacity: 0.78; }
      80% { transform: rotate(-14deg) translate(-12px, 8px); opacity: 0.6; }
      100% { transform: rotate(-13deg) translate(0, 0); opacity: 0.56; }
    }
    @keyframes ambientListenTwo {
      0% { transform: rotate(8deg) translate(0, 0); opacity: 0.44; }
      20% { transform: rotate(12deg) translate(-22px, -10px); opacity: 0.62; }
      40% { transform: rotate(6deg) translate(-8px, 14px); opacity: 0.52; }
      60% { transform: rotate(14deg) translate(12px, 6px); opacity: 0.68; }
      80% { transform: rotate(9deg) translate(24px, -8px); opacity: 0.56; }
      100% { transform: rotate(8deg) translate(0, 0); opacity: 0.44; }
    }
    @keyframes ambientListenThree {
      0% { transform: rotate(-20deg) translate(0, 0); opacity: 0.34; }
      20% { transform: rotate(-15deg) translate(-12px, 10px); opacity: 0.48; }
      40% { transform: rotate(-22deg) translate(14px, 20px); opacity: 0.4; }
      60% { transform: rotate(-13deg) translate(28px, -2px); opacity: 0.58; }
      80% { transform: rotate(-19deg) translate(6px, -14px); opacity: 0.44; }
      100% { transform: rotate(-20deg) translate(0, 0); opacity: 0.34; }
    }
    @keyframes ambientListenFour {
      0% { transform: rotate(14deg) translate(0, 0); opacity: 0.26; }
      20% { transform: rotate(9deg) translate(20px, -14px); opacity: 0.4; }
      40% { transform: rotate(17deg) translate(38px, 2px); opacity: 0.34; }
      60% { transform: rotate(11deg) translate(14px, 16px); opacity: 0.52; }
      80% { transform: rotate(16deg) translate(-6px, 4px); opacity: 0.36; }
      100% { transform: rotate(14deg) translate(0, 0); opacity: 0.26; }
    }
    @keyframes ambientListenFive {
      0% { transform: rotate(-8deg) translate(0, 0); opacity: 0.3; }
      20% { transform: rotate(-13deg) translate(-18px, 12px); opacity: 0.46; }
      40% { transform: rotate(-6deg) translate(-30px, -4px); opacity: 0.38; }
      60% { transform: rotate(-14deg) translate(-8px, -18px); opacity: 0.54; }
      80% { transform: rotate(-9deg) translate(10px, -8px); opacity: 0.42; }
      100% { transform: rotate(-8deg) translate(0, 0); opacity: 0.3; }
    }
    @keyframes ambientListenSix {
      0% { transform: rotate(22deg) translate(0, 0); opacity: 0.24; }
      20% { transform: rotate(17deg) translate(14px, -16px); opacity: 0.38; }
      40% { transform: rotate(26deg) translate(30px, -2px); opacity: 0.3; }
      60% { transform: rotate(15deg) translate(8px, 14px); opacity: 0.48; }
      80% { transform: rotate(23deg) translate(-10px, 6px); opacity: 0.34; }
      100% { transform: rotate(22deg) translate(0, 0); opacity: 0.24; }
    }
    @media (prefers-reduced-motion: reduce) {
      .hero, .section-links { animation: none; }
    }

    @media (max-width: 1400px) {
      .tests-stack { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .section-links.is-premium-locked { min-height: 0; }
      .premium-overlay { padding: 14px; gap: 12px; }
      .premium-copy { max-width: none; }
      .premium-title { font-size: clamp(1rem, 1.45vw, 1.26rem); }
      .premium-text { font-size: 0.82rem; }
      .premium-actions { gap: 8px; }
      .premium-cta { min-width: 138px; min-height: 44px; font-size: 0.74rem; padding: 0 14px; }
      .big-link > span:first-child { white-space: normal; }
    }

    @media (max-width: 1024px) {
      .hero, .between-choose, .tests-stack { margin-left: 12px; margin-right: 12px; }
      .tests-stack { grid-template-columns: 1fr; }
      .link-row { flex-direction: column; }
      .start-btn { justify-content: center; }
    }

    @media (max-width: 760px) {
      .shell { padding-top: 104px; }
      .topbar { gap: 8px; padding: 6px 10px; }
      .top-left { flex-direction: row; align-items: center; gap: 8px; min-width: 0; }
      .brand img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; }
      .brand-text { font-size: 0.84rem; max-width: 38vw; overflow: hidden; text-overflow: ellipsis; }
      .menu-list { gap: 12px; }
      .menu-link::after { content: ""; }
      .submenu { position: static; display: none; box-shadow: none; border: 1px solid #c5d3dc; margin-top: 6px; }
      .hero, .between-choose, .tests-stack { margin-left: 12px; margin-right: 12px; }
      .tests-stack { grid-template-columns: 1fr; }
      .big-link { font-size: 1.3rem; color: #0a3f49; background: #ffffff; border: 1.5px solid #4ba9b7; box-shadow: 0 4px 10px rgba(15, 116, 129, 0.1); padding: 12px 18px; height: auto; }
      .link-row { flex-direction: column; }
      .start-btn { justify-content: center; }
      .hero-switch a { font-size: 0.82rem; }
      .test-status { margin-right: 0; }
      .test-overview-grid { grid-template-columns: 1fr; }
      .section-links.is-premium-locked { min-height: 0; }
      .premium-overlay { padding: 12px; display: grid; gap: 10px; }
      .premium-actions { width: 100%; align-items: stretch; }
      .premium-note { text-align: left; }
      .premium-cta { width: 100%; min-width: 0; }
    }