:root {
        --bg: #f4f5f0;
        --surface: #ffffff;
        --surface-2: #eceee4;
        --ink: #15170f;
        --ink-soft: #565b4a;
        --line: #dde0cf;
        --volt: #b8e62e;
        --volt-ink: #2c3d05;
        --volt-soft: #eef7cf;
        --danger: #c93a2e;
        --danger-soft: #fbe9e6;
        --ok: #2e7d32;
        --ok-soft: #e4f2e2;
        --radius: 14px;
        --shadow: 0 2px 10px rgba(21, 23, 15, 0.07);
      }
      @media (prefers-color-scheme: dark) {
        :root {
          --bg: #101208;
          --surface: #1a1d10;
          --surface-2: #23261a;
          --ink: #f2f4e6;
          --ink-soft: #a9ae97;
          --line: #333824;
          --volt: #c4f542;
          --volt-ink: #1d2903;
          --volt-soft: #2c3a10;
          --danger: #ff8a7a;
          --danger-soft: #3d1f1a;
          --ok: #8fd694;
          --ok-soft: #1d331e;
          --shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
        }
      }
      * { box-sizing: border-box; }
      html { scroll-behavior: smooth; }
      body {
        margin: 0;
        background: var(--bg);
        color: var(--ink);
        font-family: "Barlow", system-ui, sans-serif;
        font-size: 16px;
        line-height: 1.45;
      }
      h1, h2, h3, .cond {
        font-family: "Barlow Condensed", "Barlow", sans-serif;
        text-transform: uppercase;
        letter-spacing: 0.02em;
        margin: 0;
      }
      img { max-width: 100%; display: block; }
      button { font-family: inherit; cursor: pointer; }
      .wrap { max-width: 1060px; margin: 0 auto; padding: 0 16px 96px; }
      .app-shell { display: none; }
      body.authenticated .app-shell { display: block; }
      body.authenticated .login-screen { display: none; }
      .login-screen {
        min-height: 100vh;
        display: grid;
        place-items: center;
        padding: 24px;
      }
      .login-card {
        width: min(100%, 420px);
        padding: 24px;
      }
      .login-card h1 { font-size: 34px; margin-bottom: 6px; }
      .login-card p { color: var(--ink-soft); margin: 0 0 16px; }
      .login-card .btn { width: 100%; justify-content: center; margin-top: 8px; }
      .login-error {
        min-height: 20px;
        color: var(--danger);
        font-weight: 600;
        font-size: 14px;
      }
      .demo-logins {
        display: grid;
        gap: 4px;
        color: var(--ink-soft);
        font-size: 13px;
        margin-top: 14px;
      }
      .session-bar {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 10px;
        padding-top: 12px;
        color: var(--ink-soft);
        font-size: 14px;
      }

      /* ---------- Hero / perfil ---------- */
      .hero {
        position: relative;
        margin: 16px 0 0;
        border-radius: 20px;
        overflow: hidden;
        min-height: 300px;
        display: flex;
        align-items: flex-end;
        box-shadow: var(--shadow);
      }
      .hero img.bg {
        position: absolute; inset: 0;
        width: 100%; height: 100%;
        object-fit: cover;
      }
      .hero::after {
        content: "";
        position: absolute; inset: 0;
        background: linear-gradient(180deg, rgba(10,12,4,0.08) 30%, rgba(10,12,4,0.82) 100%);
      }
      .hero-content {
        position: relative; z-index: 1;
        padding: 22px;
        color: #f5f7ea;
        width: 100%;
      }
      .hero-top {
        display: flex; align-items: center; gap: 14px;
      }
      .avatar {
        width: 58px; height: 58px; border-radius: 50%;
        background: var(--volt); color: var(--volt-ink);
        display: grid; place-items: center;
        font-family: "Barlow Condensed", sans-serif;
        font-weight: 700; font-size: 24px;
        border: 3px solid rgba(255,255,255,0.85);
        flex: none;
      }
      .hero h1 { font-size: clamp(28px, 5vw, 40px); font-weight: 700; line-height: 1; }
      .hero .sub { color: #dfe5c8; font-size: 15px; margin-top: 2px; }
      .hero-stats {
        display: flex; gap: 10px; flex-wrap: wrap;
        margin-top: 18px;
      }
      .hstat {
        background: rgba(16, 18, 8, 0.55);
        border: 1px solid rgba(255,255,255,0.22);
        border-radius: 12px;
        padding: 8px 14px;
        backdrop-filter: blur(4px);
      }
      .hstat b { display: block; font-size: 20px; line-height: 1.1; font-family: "Barlow Condensed", sans-serif; }
      .hstat span { font-size: 12px; color: #cfd6b4; text-transform: uppercase; letter-spacing: 0.06em; }

      /* ---------- Navegação ---------- */
      nav.tabs {
        position: sticky; top: 0; z-index: 20;
        background: var(--bg);
        display: flex; gap: 8px;
        padding: 14px 0 10px;
        flex-wrap: wrap;
      }
      nav.tabs button {
        border: 1.5px solid var(--line);
        background: var(--surface);
        color: var(--ink-soft);
        font-weight: 600; font-size: 15px;
        padding: 9px 18px; border-radius: 999px;
        transition: background 0.15s, color 0.15s, border-color 0.15s;
      }
      nav.tabs button[aria-selected="true"] {
        background: var(--ink); color: var(--bg);
        border-color: var(--ink);
      }
      section.panel { display: none; }
      section.panel.active { display: block; }

      .section-head {
        display: flex; align-items: baseline; gap: 12px;
        margin: 26px 0 14px;
      }
      .section-head h2 { font-size: 26px; font-weight: 700; }
      .section-head p { margin: 0; color: var(--ink-soft); font-size: 14px; }

      .card {
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
      }

      /* ---------- Treino ---------- */
      .split-tabs {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 10px;
        margin-bottom: 14px;
      }
      .split-tabs button {
        border: 1.5px solid var(--line);
        background: var(--surface);
        color: var(--ink);
        border-radius: 12px;
        padding: 14px 16px;
        text-align: left;
        min-width: 0;
      }
      .split-tabs button b { display: block; font-size: 17px; }
      .split-tabs button span { font-size: 12.5px; color: var(--ink-soft); }
      .split-tabs button[aria-selected="true"] {
        background: var(--volt); border-color: var(--volt); color: var(--volt-ink);
      }
      .split-tabs button[aria-selected="true"] span { color: var(--volt-ink); opacity: 0.75; }
      .split-tabs button.today { outline: 2px dashed var(--ink-soft); outline-offset: 2px; }

      .workout-head {
        display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
        padding: 16px 18px 6px;
      }
      .workout-head h3 { font-size: 24px; font-weight: 700; }
      .workout-head .meta { color: var(--ink-soft); font-size: 14px; }
      .progress-wrap { margin-left: auto; min-width: 170px; flex: 1 1 170px; max-width: 260px; }
      .progress-label { font-size: 13px; color: var(--ink-soft); display: flex; justify-content: space-between; margin-bottom: 5px; }
      .progress-bar { height: 9px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
      .progress-bar i { display: block; height: 100%; background: var(--volt); width: 0%; transition: width 0.35s ease; }

      .ex-list { list-style: none; margin: 8px 0 0; padding: 6px 10px 12px; }
      .ex-list li {
        display: block;
        padding: 11px 8px;
        border-bottom: 1px solid var(--line);
      }
      .ex-list li:last-child { border-bottom: none; }
      .ex-main {
        display: flex; align-items: center; gap: 12px;
      }
      .ex-check {
        width: 30px; height: 30px; flex: none;
        border-radius: 9px;
        border: 2px solid var(--line);
        background: var(--surface);
        color: transparent;
        font-size: 17px; font-weight: 700;
        display: grid; place-items: center;
        transition: background 0.15s, border-color 0.15s, color 0.15s;
      }
      .ex-check[aria-pressed="true"] { background: var(--volt); border-color: var(--volt); color: var(--volt-ink); }
      .ex-info { flex: 1; min-width: 0; }
      .ex-info b { display: block; font-size: 16px; }
      .ex-info span { font-size: 13.5px; color: var(--ink-soft); }
      .ex-list li.done .ex-info b { text-decoration: line-through; color: var(--ink-soft); }
      .ex-load {
        font-family: "Barlow Condensed", sans-serif;
        font-weight: 600; font-size: 18px;
        background: var(--surface-2);
        padding: 4px 10px; border-radius: 8px;
        white-space: nowrap;
      }
      .set-log {
        margin: 10px 0 0 42px;
        border: 1px solid var(--line);
        border-radius: 10px;
        overflow: hidden;
        background: color-mix(in srgb, var(--surface) 84%, var(--surface-2));
      }
      .set-head,
      .set-row {
        display: grid;
        grid-template-columns: 54px minmax(74px, 1fr) minmax(78px, 112px) minmax(72px, 96px) minmax(86px, 120px);
        gap: 8px;
        align-items: center;
      }
      .set-head {
        padding: 7px 10px;
        color: var(--ink-soft);
        font-size: 12px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        background: var(--surface-2);
      }
      .set-row {
        padding: 8px 10px;
        border-top: 1px solid var(--line);
        font-size: 14px;
      }
      .set-number {
        display: flex;
        align-items: center;
        gap: 8px;
        font-family: "Barlow Condensed", sans-serif;
        font-weight: 700;
        font-size: 18px;
      }
      .set-check {
        width: 26px;
        height: 26px;
        border-radius: 8px;
        border: 2px solid var(--line);
        background: var(--surface);
        color: transparent;
        display: grid;
        place-items: center;
        font-weight: 700;
        line-height: 1;
        padding: 0;
        flex: none;
      }
      .set-check[aria-pressed="true"] {
        background: var(--volt);
        border-color: var(--volt);
        color: var(--volt-ink);
      }
      .set-row.set-done {
        background: color-mix(in srgb, var(--volt-soft) 46%, transparent);
      }
      .set-last-load {
        color: var(--ink-soft);
        font-weight: 600;
      }
      .set-row input {
        width: 100%;
        min-width: 0;
        padding: 7px 8px;
        border: 1.5px solid var(--line);
        border-radius: 8px;
        background: var(--surface);
        color: var(--ink);
        font: inherit;
      }
      .set-row input:focus {
        outline: 2px solid var(--volt);
        outline-offset: 1px;
        border-color: var(--volt);
      }
      .finish-note {
        margin: 0 18px 16px;
        padding: 10px 14px;
        border-radius: 10px;
        background: var(--volt-soft);
        color: var(--ink);
        font-size: 14.5px;
        display: none;
      }
      .finish-note.show { display: block; }
      .finish-actions {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        flex-wrap: wrap;
      }
      .finish-actions span { font-weight: 600; }
      .finish-buttons {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        justify-content: flex-end;
      }

      /* Timer */
      .timer-popup {
        position: fixed;
        left: 50%;
        bottom: 22px;
        z-index: 70;
        width: min(760px, calc(100% - 28px));
        transform: translate(-50%, 18px);
        opacity: 0;
        pointer-events: none;
        padding: 18px;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: color-mix(in srgb, var(--surface) 96%, black);
        box-shadow: 0 20px 70px rgba(0, 0, 0, .42);
        display: grid;
        grid-template-columns: minmax(130px, 1fr) auto minmax(260px, 1fr);
        gap: 18px;
        align-items: center;
        transition: opacity .18s ease, transform .18s ease;
      }
      .timer-popup.show {
        opacity: 1;
        pointer-events: auto;
        transform: translate(-50%, 0);
      }
      .timer-display {
        font-family: "Barlow Condensed", sans-serif;
        font-size: 52px; font-weight: 700; line-height: 1;
        font-variant-numeric: tabular-nums;
        min-width: 130px;
        text-align: center;
      }
      .timer-popup h3 { font-size: 20px; }
      .timer-popup p { margin: 2px 0 0; color: var(--ink-soft); font-size: 14px; }
      .timer-btns { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
      .timer-close {
        position: absolute;
        top: 8px;
        right: 8px;
        width: 30px;
        height: 30px;
        border: 0;
        border-radius: 9px;
        background: var(--surface-2);
        color: var(--ink);
        font-size: 20px;
        font-weight: 700;
        line-height: 1;
      }
      .btn {
        border: none; border-radius: 10px;
        padding: 10px 18px;
        font-weight: 700; font-size: 15px;
        background: var(--ink); color: var(--bg);
      }
      .btn.volt { background: var(--volt); color: var(--volt-ink); }
      .btn.ghost { background: var(--surface-2); color: var(--ink); }
      .btn:disabled { opacity: 0.45; cursor: default; }

      /* ---------- Aulas ---------- */
      .day-filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
      .day-filter button {
        border: 1.5px solid var(--line); background: var(--surface);
        color: var(--ink-soft); font-weight: 600;
        padding: 7px 14px; border-radius: 999px; font-size: 14px;
      }
      .day-filter button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

      .class-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
      .class-card { overflow: hidden; display: flex; flex-direction: column; }
      .class-card img { height: 140px; width: 100%; object-fit: cover; }
      .class-card .body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
      .class-card h3 { font-size: 21px; font-weight: 700; }
      .class-meta { color: var(--ink-soft); font-size: 14px; display: flex; flex-wrap: wrap; gap: 4px 14px; }
      .class-meta b { color: var(--ink); }
      .spots { font-size: 13.5px; font-weight: 600; }
      .spots.low { color: var(--danger); }
      .spots.ok { color: var(--ok); }
      .book-btn { margin-top: auto; }
      .book-btn.booked { background: var(--ok-soft); color: var(--ok); }
      .class-card.full .book-btn { background: var(--danger-soft); color: var(--danger); }

      .my-bookings { margin-top: 22px; padding: 16px 18px; }
      .my-bookings h3 { font-size: 20px; margin-bottom: 8px; }
      .my-bookings ul { margin: 0; padding: 0; list-style: none; }
      .my-bookings li { padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 15px; display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
      .my-bookings li:last-child { border-bottom: none; }
      .my-bookings .empty { color: var(--ink-soft); font-size: 14.5px; }
      .cancel-link { background: none; border: none; color: var(--danger); font-weight: 600; font-size: 14px; padding: 0; }

      /* ---------- Evolução ---------- */
      .stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
      .stat-card { padding: 16px; }
      .stat-card b { display: block; font-family: "Barlow Condensed", sans-serif; font-size: 34px; font-weight: 700; line-height: 1; }
      .stat-card span { font-size: 13px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.05em; }
      .stat-card small { display: block; margin-top: 4px; font-size: 13px; color: var(--ink-soft); }
      .up { color: var(--ok); font-weight: 700; }

      .chart-card { padding: 18px; margin-top: 14px; }
      .chart-card h3 { font-size: 20px; margin-bottom: 4px; }
      .chart-card p { margin: 0 0 12px; color: var(--ink-soft); font-size: 14px; }
      .chart-scroll { overflow-x: auto; }
      svg.chart { width: 100%; min-width: 520px; height: auto; }
      svg.chart .grid { stroke: var(--line); stroke-width: 1; }
      svg.chart .axis-label { fill: var(--ink-soft); font-size: 12px; font-family: "Barlow", sans-serif; }
      svg.chart .line { fill: none; stroke: var(--volt-ink); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
      @media (prefers-color-scheme: dark) { svg.chart .line { stroke: var(--volt); } }
      svg.chart .dot { fill: var(--surface); stroke: var(--volt-ink); stroke-width: 2.5; }
      @media (prefers-color-scheme: dark) { svg.chart .dot { stroke: var(--volt); } }
      svg.chart .dot-label { fill: var(--ink); font-size: 12.5px; font-weight: 700; font-family: "Barlow", sans-serif; }

      .freq-card { padding: 18px; margin-top: 14px; }
      .freq-card h3 { font-size: 20px; margin-bottom: 10px; }
      .freq-week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; text-align: center; }
      .freq-week .dow { font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.05em; padding-bottom: 4px; }
      .freq-cell {
        aspect-ratio: 1; border-radius: 9px;
        background: var(--surface-2);
        display: grid; place-items: center;
        font-size: 13px; font-weight: 600; color: var(--ink-soft);
      }
      .freq-cell.went { background: var(--volt); color: var(--volt-ink); }
      .freq-cell.today { outline: 2px solid var(--ink); outline-offset: 1px; }

      .feed-card { padding: 18px; margin-top: 14px; }
      .feed-card h3 { font-size: 20px; margin-bottom: 8px; }
      .profile-feed { display: flex; flex-direction: column; gap: 10px; }
      .feed-post {
        border: 1px solid var(--line);
        border-radius: 12px;
        padding: 12px;
        background: var(--surface);
      }
      .feed-post h4 {
        margin: 0;
        font-family: "Barlow Condensed", sans-serif;
        font-size: 21px;
        text-transform: uppercase;
      }
      .feed-post .meta { color: var(--ink-soft); font-size: 13px; margin-top: 2px; }
      .feed-post ul { margin: 10px 0 0; padding-left: 18px; color: var(--ink-soft); }
      .feed-post li { margin: 4px 0; }

      /* ---------- Professor ---------- */
      .prof-note { color: var(--ink-soft); font-size: 14px; margin: -8px 0 16px; }
      .prof-subtabs {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        margin: 0 0 14px;
      }
      .prof-subtabs button {
        border: 1.5px solid var(--line);
        background: var(--surface);
        color: var(--ink-soft);
        font-weight: 700;
        font-size: 14px;
        padding: 9px 16px;
        border-radius: 999px;
      }
      .prof-subtabs button.active {
        background: var(--volt);
        border-color: var(--volt);
        color: var(--volt-ink);
      }
      .prof-panel { display: none; }
      .prof-panel.active { display: block; }
      .form-card { padding: 18px; }
      .form-card h3 { font-size: 20px; margin-bottom: 12px; }
      .form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
      .field label { display: block; font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); margin-bottom: 5px; }
      .field input, .field select, .field textarea, .treino-fields input {
        width: 100%; padding: 10px 12px;
        border: 1.5px solid var(--line); border-radius: 10px;
        background: var(--surface); color: var(--ink);
        font: inherit; font-size: 15px;
      }
      .field textarea { min-height: 104px; resize: vertical; line-height: 1.4; }
      .field input:focus, .field select:focus, .field textarea:focus, .treino-fields input:focus { outline: 2px solid var(--volt); outline-offset: 1px; border-color: var(--volt); }
      .form-actions { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; }
      .admin-user-form {
        padding-bottom: 14px;
        border-bottom: 1px solid var(--line);
        margin-bottom: 14px;
      }
      .admin-message {
        margin: 10px 0 14px;
        padding: 10px 12px;
        border-radius: 10px;
        font-size: 14px;
        font-weight: 700;
      }
      .admin-message.success {
        background: var(--ok-soft);
        color: var(--ok);
      }
      .admin-message.error {
        background: var(--danger-soft);
        color: var(--danger);
      }
      .admin-user-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
      }
      .admin-user-row {
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr)) auto;
        gap: 10px;
        align-items: end;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 10px;
        background: color-mix(in srgb, var(--surface) 88%, var(--surface-2));
      }
      .admin-user-actions {
        display: flex;
        gap: 8px;
        align-items: center;
        padding-bottom: 1px;
      }

      .student-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; margin-top: 14px; }
      .student-card { padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; }
      .student-card .row { display: flex; align-items: center; gap: 12px; }
      .avatar-sm {
        width: 44px; height: 44px; border-radius: 50%;
        background: var(--volt); color: var(--volt-ink);
        display: grid; place-items: center; flex: none;
        font-family: "Barlow Condensed", sans-serif; font-weight: 700; font-size: 18px;
      }
      .student-card h3 { font-size: 20px; }
      .student-card .meta { font-size: 13.5px; color: var(--ink-soft); }
      .student-card .actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 2px; }
      .student-card.selected { outline: 2px solid var(--volt); outline-offset: 1px; }
      .active-tag {
        font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
        background: var(--volt-soft); color: var(--ink); padding: 3px 8px; border-radius: 99px;
      }
      .btn.small { padding: 7px 12px; font-size: 13.5px; border-radius: 8px; }
      .btn.danger { background: var(--danger-soft); color: var(--danger); }

      .editor-card { padding: 18px; margin-top: 16px; }
      .library-card { padding: 18px; margin-top: 16px; }
      .library-card > h3 { font-size: 22px; margin-bottom: 4px; }
      .library-card .sub { color: var(--ink-soft); font-size: 14px; margin: 0 0 14px; }
      .library-search {
        display: grid;
        grid-template-columns: minmax(220px, 1fr) auto;
        gap: 12px;
        align-items: end;
        margin-bottom: 12px;
      }
      .library-search span {
        color: var(--ink-soft);
        font-size: 13px;
        font-weight: 700;
        padding: 10px 0;
        white-space: nowrap;
      }
      .library-list {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 10px;
      }
      .library-row {
        border: 1px solid var(--line);
        border-radius: 10px;
        background: color-mix(in srgb, var(--surface) 88%, var(--surface-2));
        overflow: hidden;
      }
      .library-row.expanded {
        grid-column: 1 / -1;
        padding: 12px;
      }
      .library-summary {
        width: 100%;
        border: 0;
        background: transparent;
        color: var(--ink);
        padding: 10px;
        text-align: left;
        display: grid;
        grid-template-columns: 64px 1fr;
        gap: 10px;
        align-items: center;
      }
      .library-summary b {
        display: block;
        font-size: 14px;
        line-height: 1.2;
      }
      .library-fields {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
        gap: 10px;
        align-items: start;
        margin-top: 10px;
      }
      .library-fields .wide { grid-column: 1 / -2; }
      .workout-ex-row {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
        gap: 10px;
        align-items: start;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 10px;
        background: color-mix(in srgb, var(--surface) 88%, var(--surface-2));
      }
      .workout-ex-row .wide { grid-column: 1 / -2; }
      .library-thumb {
        width: 64px;
        height: 64px;
        border-radius: 14px;
        object-fit: cover;
        border: 1px solid var(--line);
        background: var(--surface-2);
        flex: none;
      }
      .library-thumb.empty::before {
        content: "";
        display: block;
        width: 100%;
        height: 100%;
      }
      .editor-card > h3 { font-size: 22px; margin-bottom: 4px; }
      .editor-card .sub { color: var(--ink-soft); font-size: 14px; margin: 0 0 14px; }
      .treino-block { border: 1px solid var(--line); border-radius: 12px; padding: 14px; margin-top: 12px; }
      .treino-block-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
      .treino-block-head h4 { margin: 0; font-family: "Barlow Condensed", sans-serif; font-size: 20px; text-transform: uppercase; }
      .treino-toggle {
        flex: 1;
        min-width: 180px;
        border: 0;
        background: transparent;
        color: var(--ink);
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
        padding: 2px 0;
        text-align: left;
      }
      .treino-toggle span {
        font-family: "Barlow Condensed", sans-serif;
        font-size: 22px;
        font-weight: 700;
        line-height: 1;
        text-transform: uppercase;
      }
      .treino-toggle small { color: var(--ink-soft); font-size: 13.5px; }
      .treino-toggle:hover span { color: var(--volt); }
      .treino-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
      .ex-edit-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
      .ex-edit-row {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
        gap: 10px;
        align-items: start;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 10px;
        background: color-mix(in srgb, var(--surface) 88%, var(--surface-2));
      }
      .ex-edit-row .wide { grid-column: 1 / -2; }
      .ex-edit-row input,
      .ex-edit-row textarea {
        padding: 8px 10px; border: 1.5px solid var(--line); border-radius: 8px;
        background: var(--surface); color: var(--ink); font: inherit; font-size: 14px; width: 100%;
      }
      .ex-edit-row textarea { min-height: 88px; resize: vertical; }
      .ex-edit-row input:focus,
      .ex-edit-row textarea:focus { outline: 2px solid var(--volt); outline-offset: 1px; border-color: var(--volt); }
      .icon-btn { border: none; background: var(--danger-soft); color: var(--danger); width: 36px; height: 36px; border-radius: 8px; font-size: 16px; font-weight: 700; flex: none; }
      .block-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
      .empty-note { color: var(--ink-soft); font-size: 14.5px; padding: 6px 2px; }
      .exercise-overlay {
        position: fixed;
        inset: 0;
        z-index: 60;
        background: rgba(3, 5, 2, .72);
        display: none;
        place-items: center;
        padding: 18px;
      }
      .exercise-overlay.show { display: grid; }
      .exercise-modal {
        width: min(760px, 100%);
        max-height: min(860px, 92vh);
        overflow: auto;
        background: #fbfbf7;
        color: #1d2118;
        border-radius: 14px;
        padding: 22px;
        box-shadow: 0 24px 80px rgba(0, 0, 0, .42);
        position: relative;
      }
      .exercise-modal h3 {
        color: #1d2118;
        font-size: 28px;
        margin-right: 42px;
      }
      .modal-close {
        position: absolute;
        top: 16px;
        right: 16px;
        width: 34px;
        height: 34px;
        border: none;
        border-radius: 50%;
        background: #edf0e9;
        color: #1d2118;
        font-size: 22px;
        font-weight: 700;
      }
      .detail-tabs {
        display: flex;
        gap: 26px;
        border-bottom: 1px solid #e5e8e0;
        margin: 14px -22px 18px;
        padding: 0 22px;
      }
      .detail-tabs span {
        padding: 0 0 12px;
        color: #68706a;
        font-weight: 600;
      }
      .detail-tabs span:first-child {
        color: #1478ff;
        border-bottom: 3px solid #1478ff;
      }
      .exercise-video {
        width: 100%;
        aspect-ratio: 16 / 9;
        border: 1px solid #ecefe8;
        border-radius: 14px;
        background: #f5f6f2;
        object-fit: contain;
      }
      .exercise-video.image {
        background: #fff;
        object-fit: contain;
      }
      .exercise-video.empty,
      .exercise-video-link {
        display: grid;
        place-items: center;
        min-height: 220px;
        color: #7a837d;
        text-decoration: none;
      }
      .exercise-summary {
        margin-top: 20px;
        display: grid;
        gap: 12px;
        font-size: 18px;
      }
      .exercise-summary p { margin: 0; }
      .exercise-summary span { color: #87908b; }
      .exercise-instructions {
        margin-top: 22px;
        border-top: 1px solid #e5e8e0;
        padding-top: 16px;
      }
      .exercise-instructions h4 {
        margin: 0 0 6px;
        font-family: "Barlow Condensed", sans-serif;
        font-size: 22px;
        text-transform: uppercase;
      }
      .exercise-instructions ol {
        margin: 0;
        padding: 0;
        list-style: none;
        counter-reset: step;
      }
      .exercise-instructions li {
        counter-increment: step;
        display: grid;
        grid-template-columns: 34px 1fr;
        gap: 8px;
        padding: 16px 0;
        border-bottom: 1px solid #edf0e9;
        font-size: 18px;
        line-height: 1.35;
      }
      .exercise-instructions li::before {
        content: counter(step) ".";
        font-weight: 800;
      }
      @media (max-width: 560px) {
        .library-fields,
        .workout-ex-row { grid-template-columns: 1fr; }
        .library-search { grid-template-columns: 1fr; }
        .admin-user-row { grid-template-columns: 1fr; }
        .admin-user-actions { justify-content: flex-end; }
        .library-fields .wide,
        .workout-ex-row .wide { grid-column: 1; }
        .ex-edit-row { grid-template-columns: 1fr; }
        .ex-edit-row .wide { grid-column: 1; }
        .ex-edit-row .icon-btn,
        .library-fields .icon-btn,
        .workout-ex-row .icon-btn { justify-self: end; }
        .exercise-modal { padding: 18px; }
        .detail-tabs { margin-left: -18px; margin-right: -18px; padding: 0 18px; }
      }

      footer.note {
        margin-top: 34px; text-align: center;
        color: var(--ink-soft); font-size: 13px;
      }
      @media (max-width: 560px) {
        .progress-wrap { max-width: none; }
        .timer-popup {
          bottom: 12px;
          width: calc(100% - 20px);
          grid-template-columns: 1fr;
          gap: 12px;
          padding: 16px;
          text-align: center;
        }
        .timer-display { font-size: 44px; }
        .timer-btns { justify-content: center; }
        .hero { min-height: 260px; }
        .ex-main { align-items: flex-start; }
        .ex-load { font-size: 16px; }
        .set-log { margin-left: 0; }
        .set-head,
        .set-row {
          grid-template-columns: 64px minmax(48px, 1fr) minmax(54px, 66px) minmax(52px, 64px) minmax(62px, 1fr);
          gap: 6px;
        }
        .set-number { gap: 5px; }
        .set-check { width: 24px; height: 24px; border-radius: 7px; }
      }