:root {
      color-scheme: dark;
      --bg: #0b0d10;
      --surface: #14181d;
      --surface-2: #1b2128;
      --surface-3: #252d36;
      --line: #5e6875;
      --line-subtle: #303740;
      --text: #f5f7fa;
      --muted: #b0bac6;
      --accent: #ff6b00;
      --accent-soft: #ff8a1f;
      --success: #4ade80;
      --warning: #facc15;
      --danger: #fb7185;
      --shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
      --radius-xl: 20px;
      --radius-lg: 16px;
      --radius-md: 10px;
    }

    * { box-sizing: border-box; }

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      min-height: 100vh;
      overflow-x: hidden;
      color: var(--text);
      background:
        radial-gradient(circle at 18% 14%, rgba(255, 107, 0, 0.13), transparent 28rem),
        radial-gradient(circle at 80% 86%, rgba(255, 138, 31, 0.12), transparent 30rem),
        radial-gradient(circle, rgba(255, 255, 255, 0.11) 0 1px, transparent 1.4px) 0 0 / 38px 38px,
        var(--bg);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      transition: background-color 500ms ease, color 500ms ease;
    }

    body.focus-mode {
      --bg: #080a0d;
      --surface: #101419;
      --surface-2: #171c22;
      --surface-3: #202730;
      background:
        radial-gradient(circle at 50% 0%, rgba(255, 107, 0, 0.2), transparent 34rem),
        radial-gradient(circle, rgba(255, 255, 255, 0.04) 0 1px, transparent 1.4px) 0 0 / 48px 48px,
        var(--bg);
    }

    button, input, textarea, select { font: inherit; }
    button { color: inherit; }
    button, .upload-label { -webkit-tap-highlight-color: transparent; }
    button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, .upload-label:focus-visible {
      outline: 3px solid var(--accent-soft);
      outline-offset: 3px;
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    .login-screen {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: grid;
      place-items: center;
      padding: 20px;
      background:
        radial-gradient(circle at 50% 15%, rgba(255, 107, 0, 0.2), transparent 30rem),
        radial-gradient(circle, rgba(255, 255, 255, 0.1) 0 1px, transparent 1.4px) 0 0 / 38px 38px,
        #050d19;
      transition: opacity 300ms ease, visibility 300ms ease;
    }

    .login-screen.hidden { opacity: 0; visibility: hidden; }

    .login-card {
      width: min(100%, 430px);
      padding: 34px;
      border: 1px solid var(--line);
      border-radius: 30px;
      background: rgba(13, 26, 45, 0.94);
      box-shadow: var(--shadow);
      backdrop-filter: blur(16px);
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      font-weight: 850;
      letter-spacing: -0.04em;
    }

    .logo-symbol {
      position: relative;
      display: grid;
      width: 40px;
      height: 40px;
      flex: 0 0 40px;
      place-items: center;
      overflow: hidden;
      border: 1px solid rgba(255, 138, 31, 0.32);
      border-radius: 13px;
      color: #fff3e8;
      background: linear-gradient(145deg, rgba(255, 107, 0, 0.42), rgba(8, 28, 50, 0.96));
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 10px 24px rgba(255, 107, 0, 0.2);
    }

    .logo-symbol::before {
      content: "";
      position: absolute;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: rgba(255, 107, 0, 0.22);
      filter: blur(10px);
    }

    .logo-symbol svg { position: relative; width: 24px; height: 24px; }

    .login-card h1 {
      margin: 34px 0 8px;
      font-size: clamp(2rem, 7vw, 3.2rem);
      line-height: 0.98;
      letter-spacing: -0.065em;
    }

    .muted { color: var(--muted); }
    .login-card .muted { line-height: 1.55; }
    .login-error { margin: 16px 0 0; color: #ffadb3; font-size: 0.9rem; line-height: 1.45; }

    .field { display: grid; gap: 8px; }
    .field + .field { margin-top: 16px; }
    .field label { font-size: 0.82rem; color: var(--muted); font-weight: 750; }

    input, textarea, select {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      outline: 0;
      color: var(--text);
      background: rgba(255, 255, 255, 0.045);
    }

    input, select { min-height: 48px; padding: 0 14px; }
    textarea { min-height: 96px; padding: 13px 14px; resize: vertical; }
    input:focus, textarea:focus, select:focus { border-color: rgba(255, 107, 0, 0.6); }

    .security-note {
      display: flex;
      align-items: center;
      gap: 9px;
      margin: 18px 0;
      color: var(--muted);
      font-size: 0.8rem;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 5px rgba(118, 217, 155, 0.12);
    }

    .primary-button, .secondary-button, .ghost-button, .danger-button {
      min-height: 48px;
      border: 0;
      border-radius: 15px;
      cursor: pointer;
      font-weight: 800;
      transition: transform 160ms ease, filter 160ms ease, background 160ms ease;
    }

    .primary-button {
      padding: 0 18px;
      color: #1a120c;
      background: linear-gradient(145deg, var(--accent-soft), var(--accent));
      box-shadow: 0 12px 28px rgba(255, 107, 0, 0.18);
    }

    .primary-button:hover, .secondary-button:hover, .ghost-button:hover, .danger-button:hover { transform: translateY(-1px); }
    .primary-button:active, .secondary-button:active, .ghost-button:active, .danger-button:active { transform: translateY(0); }
    .primary-button:disabled { cursor: wait; filter: grayscale(0.4); opacity: 0.65; }
    .full { width: 100%; }

    .secondary-button {
      padding: 0 17px;
      border: 1px solid rgba(255, 107, 0, 0.22);
      color: var(--accent-soft);
      background: rgba(255, 107, 0, 0.08);
    }

    .ghost-button {
      padding: 0 15px;
      border: 1px solid var(--line);
      color: var(--text);
      background: rgba(255, 255, 255, 0.035);
    }

    .danger-button {
      padding: 0 17px;
      border: 1px solid rgba(255, 125, 134, 0.22);
      color: #ffadb3;
      background: rgba(255, 125, 134, 0.08);
    }

    .app-shell {
      display: grid;
      grid-template-columns: 250px minmax(0, 1fr);
      min-height: 100vh;
    }

    .sidebar {
      position: sticky;
      top: 0;
      height: 100vh;
      display: flex;
      flex-direction: column;
      padding: 28px 20px;
      border-right: 1px solid var(--line);
      background: rgba(20, 24, 29, 0.7);
      backdrop-filter: blur(18px);
    }

    .side-nav { display: grid; gap: 8px; margin-top: 42px; }
    .nav-button {
      display: flex;
      align-items: center;
      gap: 12px;
      min-height: 48px;
      padding: 0 14px;
      border: 0;
      border-radius: 14px;
      cursor: pointer;
      color: var(--muted);
      background: transparent;
      font-weight: 760;
      text-align: left;
    }

    .nav-button svg { width: 20px; height: 20px; }
    .nav-button.active { color: var(--text); background: rgba(255, 107, 0, 0.11); }
    .nav-button.active svg { color: var(--accent); }

    .sidebar-foot {
      margin-top: auto;
      padding: 15px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.03);
    }

    .sidebar-foot strong { display: block; font-size: 0.86rem; }
    .sidebar-foot span { display: block; margin-top: 4px; color: var(--muted); font-size: 0.74rem; }

    .app-main { min-width: 0; padding-bottom: 40px; }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 20;
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 84px;
      padding: 16px clamp(20px, 4vw, 54px);
      border-bottom: 1px solid transparent;
      background: linear-gradient(to bottom, rgba(11, 13, 16, 0.94), rgba(11, 13, 16, 0.66), transparent);
      backdrop-filter: blur(10px);
    }

    body.focus-mode .topbar { background: linear-gradient(to bottom, rgba(11, 13, 16, 0.95), rgba(11, 13, 16, 0.65), transparent); }

    .eyebrow {
      margin: 0 0 5px;
      color: var(--accent-soft);
      font-size: 0.7rem;
      font-weight: 850;
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }

    .topbar h1 { margin: 0; font-size: 1.15rem; letter-spacing: -0.025em; }
    .profile-chip { display: flex; align-items: center; gap: 10px; }
    .profile-chip span { color: var(--muted); font-size: 0.78rem; }
    .avatar {
      display: grid;
      width: 38px;
      height: 38px;
      place-items: center;
      border: 1px solid rgba(255, 107, 0, 0.2);
      border-radius: 13px;
      background: rgba(255, 107, 0, 0.1);
      font-weight: 850;
    }

    .content { width: min(1280px, 100%); margin: 0 auto; padding: 24px clamp(18px, 4vw, 54px) 100px; }
    .view { display: none; animation: reveal 280ms ease both; }
    .view.active { display: block; }

    @keyframes reveal {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .hero {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin: 12px 0 28px;
    }

    .hero h2 {
      max-width: 760px;
      margin: 0;
      font-size: clamp(2rem, 5vw, 4.5rem);
      line-height: 0.98;
      letter-spacing: -0.065em;
    }

    .hero p { max-width: 520px; margin: 13px 0 0; color: var(--muted); line-height: 1.6; }

    .date-pill {
      flex: 0 0 auto;
      padding: 11px 15px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: var(--muted);
      background: rgba(255, 255, 255, 0.035);
      font-size: 0.8rem;
    }

    .grid { display: grid; gap: 20px; }
    .home-grid { grid-template-columns: minmax(0, 1.18fr) minmax(300px, 0.82fr); }
    .progress-layout { grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr); }

    .card {
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      background: linear-gradient(145deg, rgba(18, 35, 58, 0.9), rgba(11, 24, 41, 0.88));
      box-shadow: 0 18px 55px rgba(0, 0, 0, 0.16);
    }

    .card-pad { padding: clamp(20px, 3vw, 30px); }
    .card-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
    .card-head h3 { margin: 0; font-size: 1.1rem; letter-spacing: -0.025em; }
    .card-head p { margin: 5px 0 0; color: var(--muted); font-size: 0.8rem; }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 10px;
      border: 1px solid rgba(255, 107, 0, 0.2);
      border-radius: 999px;
      color: var(--accent-soft);
      background: rgba(255, 107, 0, 0.08);
      font-size: 0.7rem;
      font-weight: 820;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    .segmented-label { margin: 19px 0 10px; color: var(--muted); font-size: 0.8rem; font-weight: 750; }
    .segments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .segment {
      min-height: 44px;
      padding: 0 8px;
      border: 1px solid var(--line);
      border-radius: 13px;
      cursor: pointer;
      color: var(--muted);
      background: rgba(255, 255, 255, 0.025);
      font-size: 0.82rem;
      font-weight: 750;
    }

    .segment.active { border-color: rgba(255, 107, 0, 0.36); color: var(--text); background: rgba(255, 107, 0, 0.11); }
    .checkin-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }

    .range-line { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; }
    input[type="range"] { min-height: auto; padding: 0; accent-color: var(--accent); }
    .pain-value { min-width: 78px; text-align: right; color: var(--warning); font-size: 0.78rem; font-weight: 800; }
    .checkin-actions { display: flex; align-items: center; gap: 12px; margin-top: 20px; }
    .checkin-actions .primary-button { flex: 1; }

    .proposal-card { position: relative; overflow: hidden; }
    .proposal-card::before {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      right: -110px;
      top: -120px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 107, 0, 0.18), transparent 68%);
      pointer-events: none;
    }

    .readiness {
      display: grid;
      grid-template-columns: 112px 1fr;
      gap: 18px;
      align-items: center;
    }

    .readiness-dial {
      display: grid;
      width: 112px;
      height: 112px;
      place-items: center;
      border-radius: 50%;
      background: conic-gradient(var(--accent) 0 78%, rgba(255, 255, 255, 0.07) 78%);
      box-shadow: 0 0 45px rgba(255, 107, 0, 0.1);
    }

    .readiness-dial::before {
      content: "";
      grid-area: 1 / 1;
      width: 86px;
      height: 86px;
      border-radius: 50%;
      background: var(--surface);
    }

    .readiness-dial strong { z-index: 1; grid-area: 1 / 1; font-size: 1.55rem; }
    .readiness-copy strong { display: block; font-size: 1.25rem; }
    .readiness-copy span { display: block; margin-top: 7px; color: var(--muted); line-height: 1.45; font-size: 0.82rem; }

    .mini-workout { display: grid; gap: 10px; margin: 24px 0; }
    .mini-exercise {
      display: grid;
      grid-template-columns: 30px 1fr auto;
      gap: 11px;
      align-items: center;
      min-height: 52px;
      padding: 8px 12px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.025);
    }

    .mini-index { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 9px; color: var(--accent-soft); background: rgba(255, 107, 0, 0.09); font-size: 0.72rem; font-weight: 850; }
    .mini-exercise strong { display: block; font-size: 0.84rem; }
    .mini-exercise span { color: var(--muted); font-size: 0.72rem; }
    .mini-exercise > span:last-child { text-align: right; }

    .stats-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 20px; }
    .stat-box { padding: 15px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255, 255, 255, 0.025); }
    .stat-box span { display: block; color: var(--muted); font-size: 0.7rem; }
    .stat-box strong { display: block; margin-top: 7px; font-size: 1.08rem; }

    .workout-hero { margin-bottom: 18px; }
    .workout-hero h2 { font-size: clamp(2rem, 5vw, 4rem); }

    .focus-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr); gap: 20px; align-items: start; }
    .exercise-stage { position: relative; min-height: 600px; overflow: hidden; }
    .exercise-stage::after {
      content: "";
      position: absolute;
      inset: auto -15% -40% 10%;
      height: 55%;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 107, 0, 0.1), transparent 65%);
      pointer-events: none;
    }

    .exercise-top { position: relative; z-index: 1; display: flex; align-items: start; justify-content: space-between; gap: 18px; }
    .exercise-count { color: var(--accent-soft); font-size: 0.74rem; font-weight: 850; letter-spacing: 0.12em; text-transform: uppercase; }
    .exercise-name { margin: 9px 0 0; font-size: clamp(2.4rem, 7vw, 5.8rem); line-height: 0.9; letter-spacing: -0.075em; }
    .target-chip { flex: 0 0 auto; padding: 12px 14px; border: 1px solid rgba(255, 107, 0, 0.2); border-radius: 16px; color: var(--accent-soft); background: rgba(255, 107, 0, 0.08); text-align: center; }
    .target-chip span { display: block; color: var(--muted); font-size: 0.67rem; text-transform: uppercase; }
    .target-chip strong { display: block; margin-top: 4px; font-size: 1rem; }

    .set-dials {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin: 42px 0 30px;
    }

    .dial-card {
      display: grid;
      min-height: 145px;
      place-items: center;
      padding: 15px;
      border: 1px solid var(--line);
      border-radius: 24px;
      background: rgba(255, 255, 255, 0.028);
      text-align: center;
      transition: transform 240ms ease, border-color 240ms ease;
    }

    .dial-card:hover { transform: translateY(-3px); border-color: rgba(255, 107, 0, 0.2); }
    .dial-card span { display: block; color: var(--muted); font-size: 0.7rem; font-weight: 750; text-transform: uppercase; letter-spacing: 0.08em; }
    .dial-card strong { display: block; margin-top: 8px; font-size: clamp(1.6rem, 4vw, 2.6rem); letter-spacing: -0.055em; }
    .dial-card small { display: block; margin-top: 3px; color: var(--accent-soft); }

    .set-form { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .set-form .field label { min-height: 28px; }
    .set-form input, .set-form select { background: rgba(255, 255, 255, 0.055); }
    .set-form .primary-button { grid-column: span 4; margin-top: 5px; }

    .session-actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 15px; }
    .session-actions button { flex: 1; }

    .rest-card { position: sticky; top: 106px; text-align: center; }
    .rest-ring {
      --timer-progress: 0deg;
      display: grid;
      width: min(250px, 72vw);
      aspect-ratio: 1;
      place-items: center;
      margin: 12px auto 22px;
      border-radius: 50%;
      background: conic-gradient(var(--accent) var(--timer-progress), rgba(255, 255, 255, 0.07) 0);
      box-shadow: 0 0 80px rgba(255, 107, 0, 0.1);
      transition: background 300ms linear;
    }

    .rest-ring::before {
      content: "";
      grid-area: 1 / 1;
      width: 82%;
      height: 82%;
      border: 1px solid var(--line);
      border-radius: 50%;
      background: radial-gradient(circle at 50% 30%, rgba(255, 107, 0, 0.09), transparent 55%), var(--surface);
    }

    .rest-ring-content { z-index: 1; grid-area: 1 / 1; }
    .rest-ring-content span { display: block; color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; }
    .rest-ring-content strong { display: block; margin: 3px 0; font-size: clamp(3rem, 9vw, 5.5rem); line-height: 1; letter-spacing: -0.075em; }
    .rest-ring-content small { color: var(--accent-soft); }
    .timer-controls { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .timer-controls button { min-height: 42px; }

    .exercise-rail { margin-top: 20px; }
    .exercise-rail-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
    .exercise-rail-head strong { font-size: 0.84rem; }
    .exercise-rail-head span { color: var(--muted); font-size: 0.73rem; }
    .exercise-carousel {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: minmax(220px, 30%);
      gap: 12px;
      overflow-x: auto;
      padding: 2px 2px 10px;
      scroll-snap-type: x mandatory;
      scrollbar-width: thin;
      scrollbar-color: rgba(255, 107, 0, 0.25) transparent;
    }

    .queue-card {
      min-height: 116px;
      padding: 17px;
      border: 1px solid var(--line);
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.025);
      scroll-snap-align: start;
    }

    .queue-card.current { border-color: rgba(255, 107, 0, 0.32); background: rgba(255, 107, 0, 0.08); }
    .queue-card span { color: var(--muted); font-size: 0.7rem; }
    .queue-card strong { display: block; margin-top: 12px; font-size: 1rem; }
    .queue-card small { display: block; margin-top: 5px; color: var(--accent-soft); }

    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
    .metric-card { padding: 20px; }
    .metric-card span { color: var(--muted); font-size: 0.72rem; }
    .metric-card strong { display: block; margin-top: 8px; font-size: clamp(1.3rem, 3vw, 2.15rem); letter-spacing: -0.05em; }
    .metric-card small { display: block; margin-top: 5px; color: var(--success); }

    .chart-card { padding: 24px; }
    .chart-card + .chart-card { margin-top: 20px; }
    .chart-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
    .chart-head h3 { margin: 0; font-size: 1rem; }
    .chart-head p { margin: 5px 0 0; color: var(--muted); font-size: 0.75rem; }
    .chart-head strong { color: var(--accent-soft); font-size: 1.3rem; }
    .chart { width: 100%; height: 210px; overflow: visible; }
    .chart-grid { stroke: rgba(255, 255, 255, 0.07); stroke-width: 1; }
    .chart-line { fill: none; stroke: var(--accent); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 8px 12px rgba(255, 107, 0, 0.22)); }
    .chart-area { fill: url(#areaGradient); }
    .chart-dot { fill: var(--surface); stroke: var(--accent-soft); stroke-width: 3; }

    .gallery-card { padding: 24px; }
    .upload-label {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 14px;
      border: 1px dashed rgba(255, 107, 0, 0.35);
      border-radius: 15px;
      cursor: pointer;
      color: var(--accent-soft);
      background: rgba(255, 107, 0, 0.06);
      font-weight: 800;
      font-size: 0.8rem;
    }

    .progress-gallery { display: grid; gap: 12px; margin-top: 18px; }
    .progress-item { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: rgba(255, 255, 255, 0.025); }
    .progress-thumb {
      position: relative;
      display: grid;
      height: 150px;
      place-items: center;
      overflow: hidden;
      background:
        linear-gradient(145deg, rgba(255, 123, 70, 0.35), rgba(255, 83, 56, 0.08)),
        repeating-linear-gradient(20deg, transparent 0 18px, rgba(255, 255, 255, 0.06) 18px 20px),
        #2a2520;
    }

    .progress-thumb.blue { background: linear-gradient(145deg, rgba(255, 107, 0, 0.34), rgba(255, 107, 0, 0.05)), radial-gradient(circle at 65% 30%, #3a2a1f, #17191c); }
    .progress-thumb img { width: 100%; height: 100%; object-fit: cover; }
    .strava-word { font-size: 1.25rem; font-weight: 900; font-style: italic; letter-spacing: -0.04em; }
    .progress-meta { padding: 14px; }
    .progress-meta strong { display: block; font-size: 0.86rem; }
    .progress-meta span { display: block; margin-top: 5px; color: var(--muted); font-size: 0.7rem; }
    .uuid { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

    .ai-layout { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 20px; min-height: 680px; }
    .ai-context { padding: 24px; }
    .context-list { display: grid; gap: 10px; margin-top: 20px; }
    .context-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255, 255, 255, 0.025); }
    .context-item strong { font-size: 0.78rem; }
    .context-item span { color: var(--success); font-size: 0.69rem; }
    .privacy-note { margin-top: 20px; padding: 14px; border-left: 3px solid var(--accent); border-radius: 10px; color: var(--muted); background: rgba(255, 107, 0, 0.055); font-size: 0.75rem; line-height: 1.5; }

    .chat-card { display: flex; min-height: 680px; flex-direction: column; overflow: hidden; }
    .chat-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; border-bottom: 1px solid var(--line); }
    .chat-head strong { display: block; }
    .chat-head span { display: block; margin-top: 4px; color: var(--muted); font-size: 0.72rem; }
    .chat-status { display: flex; align-items: center; gap: 8px; color: var(--success); font-size: 0.72rem; }
    .messages { flex: 1; display: flex; flex-direction: column; gap: 14px; overflow-y: auto; padding: 24px; }
    .message { max-width: min(82%, 620px); padding: 14px 16px; border-radius: 18px; line-height: 1.55; font-size: 0.88rem; white-space: pre-wrap; }
    .message.ai { align-self: flex-start; border: 1px solid var(--line); border-bottom-left-radius: 5px; background: rgba(255, 255, 255, 0.04); }
    .message.user { align-self: flex-end; border-bottom-right-radius: 5px; color: #1a120c; background: var(--accent-soft); }
    .message small { display: block; margin-top: 7px; opacity: 0.65; }
    .chat-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 16px; border-top: 1px solid var(--line); background: rgba(11, 13, 16, 0.45); }
    .chat-form textarea { min-height: 52px; max-height: 150px; resize: none; }
    .chat-form button { width: 52px; min-height: 52px; padding: 0; font-size: 1.15rem; }

    .mobile-nav { display: none; }

    .toast {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 80;
      max-width: min(390px, calc(100vw - 36px));
      padding: 14px 17px;
      border: 1px solid rgba(255, 107, 0, 0.22);
      border-radius: 15px;
      color: var(--text);
      background: rgba(20, 24, 29, 0.96);
      box-shadow: var(--shadow);
      opacity: 0;
      transform: translateY(12px);
      pointer-events: none;
      transition: opacity 220ms ease, transform 220ms ease;
      font-size: 0.82rem;
    }

    .toast.visible { opacity: 1; transform: translateY(0); }

    dialog {
      width: min(92vw, 520px);
      padding: 0;
      border: 1px solid var(--line);
      border-radius: 26px;
      color: var(--text);
      background: var(--surface);
      box-shadow: var(--shadow);
    }

    dialog::backdrop { background: rgba(0, 5, 12, 0.72); backdrop-filter: blur(8px); }
    .dialog-body { padding: 28px; }
    .dialog-body h2 { margin: 0; font-size: 2rem; letter-spacing: -0.05em; }
    .dialog-body p { color: var(--muted); line-height: 1.5; }
    .dialog-actions { display: flex; gap: 10px; margin-top: 22px; }
    .dialog-actions button { flex: 1; }

    @media (max-width: 1050px) {
      .app-shell { grid-template-columns: 86px minmax(0, 1fr); }
      .sidebar { padding-inline: 14px; align-items: center; }
      .sidebar .logo > span:last-child, .nav-button span, .sidebar-foot { display: none; }
      .side-nav { width: 100%; }
      .nav-button { justify-content: center; padding: 0; }
      .home-grid, .focus-grid, .progress-layout { grid-template-columns: 1fr; }
      .rest-card { position: static; }
      .rest-ring { width: min(220px, 62vw); }
      .ai-layout { grid-template-columns: 1fr; }
      .ai-context { display: none; }
      .exercise-stage { min-height: auto; }
    }

    @media (max-width: 720px) {
      body { background-size: auto, auto, 30px 30px, auto; }
      .app-shell { display: block; }
      .sidebar { display: none; }
      .app-main { padding-bottom: 76px; }
      .topbar { min-height: 72px; padding: 12px 18px; }
      .profile-chip span { display: none; }
      .content { padding: 14px 14px 92px; }
      .hero { display: block; margin-top: 6px; }
      .hero h2 { font-size: clamp(2.25rem, 12vw, 3.5rem); }
      .date-pill { display: inline-flex; margin-top: 18px; }
      .card { border-radius: 23px; }
      .card-pad { padding: 19px; }
      .segments { grid-template-columns: repeat(3, minmax(0, 1fr)); }
      .segment { padding-inline: 4px; font-size: 0.75rem; }
      .checkin-row { grid-template-columns: 1fr; }
      .readiness { grid-template-columns: 88px 1fr; }
      .readiness-dial { width: 88px; height: 88px; }
      .readiness-dial::before { width: 68px; height: 68px; }
      .readiness-dial strong { font-size: 1.15rem; }
      .stats-strip { grid-template-columns: 1fr 1fr; }
      .stats-strip .stat-box:last-child { grid-column: span 2; }
      .exercise-top { display: block; }
      .target-chip { display: inline-block; margin-top: 18px; text-align: left; }
      .exercise-name { font-size: clamp(3rem, 16vw, 4.7rem); }
      .set-dials { gap: 8px; margin: 28px 0 20px; }
      .dial-card { min-height: 112px; padding: 10px 5px; border-radius: 18px; }
      .dial-card span { font-size: 0.6rem; }
      .dial-card strong { font-size: 1.45rem; }
      .set-form { grid-template-columns: 1fr 1fr; }
      .set-form .primary-button { grid-column: span 2; }
      .session-actions button { flex-basis: calc(50% - 5px); }
      .exercise-carousel { grid-auto-columns: 78%; }
      .metric-grid { grid-template-columns: 1fr 1fr; }
      .metric-card { padding: 16px; }
      .progress-layout { gap: 14px; }
      .chat-card { min-height: calc(100vh - 190px); }
      .messages { padding: 16px; }
      .message { max-width: 92%; }
      .mobile-nav {
        position: fixed;
        left: 10px;
        right: 10px;
        bottom: 10px;
        z-index: 40;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        padding: 7px;
        border: 1px solid var(--line);
        border-radius: 22px;
        background: rgba(11, 13, 16, 0.9);
        box-shadow: 0 18px 45px rgba(0, 0, 0, 0.35);
        backdrop-filter: blur(18px);
      }

      body.focus-mode .mobile-nav { background: rgba(11, 13, 16, 0.92); }
      .mobile-nav .nav-button { display: grid; min-height: 54px; place-items: center; gap: 2px; padding: 4px; font-size: 0.61rem; }
      .mobile-nav .nav-button svg { width: 19px; height: 19px; }
      .login-card { padding: 26px 22px; }
      .toast { right: 18px; bottom: 88px; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
    }

    /* Revisione visuale: accesso, album progressi, timer e spazio Gemini */
    .login-screen {
      overflow: hidden;
      isolation: isolate;
      background:
        linear-gradient(145deg, rgba(4, 12, 25, 0.7), rgba(8, 24, 44, 0.92)),
        radial-gradient(circle, rgba(255, 255, 255, 0.09) 0 1px, transparent 1.5px) 0 0 / 38px 38px,
        #030914;
    }

    .login-screen::before,
    .login-screen::after {
      content: "";
      position: absolute;
      z-index: -1;
      width: min(72vw, 780px);
      aspect-ratio: 1;
      border-radius: 42% 58% 68% 32% / 44% 38% 62% 56%;
      opacity: 0.52;
      will-change: transform, border-radius;
    }

    .login-screen::before {
      left: -22%;
      top: -42%;
      background: radial-gradient(circle at 65% 65%, rgba(255, 107, 0, 0.58), rgba(255, 107, 0, 0.08) 64%, transparent 70%);
      animation: loginDriftOne 13s ease-in-out infinite alternate;
    }

    .login-screen::after {
      right: -26%;
      bottom: -48%;
      background: radial-gradient(circle at 36% 34%, rgba(255, 138, 31, 0.34), rgba(255, 138, 31, 0.08) 62%, transparent 70%);
      animation: loginDriftTwo 16s ease-in-out infinite alternate;
    }

    @keyframes loginDriftOne {
      to { transform: translate(14vw, 11vh) rotate(24deg) scale(1.12); border-radius: 62% 38% 40% 60% / 52% 62% 38% 48%; }
    }

    @keyframes loginDriftTwo {
      to { transform: translate(-12vw, -10vh) rotate(-22deg) scale(1.08); border-radius: 36% 64% 58% 42% / 64% 44% 56% 36%; }
    }

    .login-card {
      position: relative;
      border-color: rgba(255, 138, 31, 0.27);
      background: linear-gradient(155deg, rgba(20, 42, 70, 0.98), rgba(8, 20, 37, 0.99));
      box-shadow: 0 34px 100px rgba(0, 0, 0, 0.58), 0 0 0 8px rgba(255, 107, 0, 0.04);
      backdrop-filter: blur(24px);
    }

    .login-card::before {
      content: "";
      position: absolute;
      inset: 1px;
      border-radius: 29px;
      pointer-events: none;
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.075), transparent 38%);
    }

    .login-card > * { position: relative; z-index: 1; }
    .login-card .muted { color: #b8c7d8; }
    .login-card .field label { color: #edf4fb; font-size: 0.9rem; }

    .login-card input {
      min-height: 55px;
      border-color: rgba(255, 138, 31, 0.34);
      color: #ffffff;
      background: rgba(37, 45, 54, 0.88);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07), 0 8px 24px rgba(0, 0, 0, 0.14);
      font-size: 1rem;
      font-weight: 680;
    }

    .login-card input[type="password"] { letter-spacing: 0.14em; }
    .login-card input:focus { border-color: var(--accent-soft); background: rgba(37, 45, 54, 0.94); }

    .topbar {
      will-change: transform, opacity;
      transition: transform 180ms linear, opacity 180ms linear;
    }

    .rest-ring-content strong {
      margin: 6px 0;
      font-size: clamp(2.35rem, 6.5vw, 4rem);
      letter-spacing: -0.065em;
    }

    .album-section { margin-top: 22px; }
    .album-section + .album-section { padding-top: 22px; border-top: 1px solid var(--line); }
    .album-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 11px; }
    .album-heading strong { font-size: 0.82rem; }
    .album-heading span { color: var(--muted); font-size: 0.68rem; }
    .progress-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 0; }
    .progress-item { position: relative; min-height: 178px; isolation: isolate; }
    .progress-item.featured { grid-column: span 2; min-height: 210px; }
    .progress-thumb { height: 100%; min-height: inherit; }
    .progress-thumb img { transition: transform 500ms ease, filter 500ms ease; }
    .progress-item:hover .progress-thumb img { transform: scale(1.045); filter: saturate(1.08); }
    .strava-word { padding: 16px; font-size: clamp(0.92rem, 2vw, 1.25rem); text-align: center; }
    .progress-meta {
      position: absolute;
      inset: auto 0 0;
      z-index: 2;
      padding: 38px 13px 13px;
      background: linear-gradient(to top, rgba(11, 13, 16, 0.96), rgba(11, 13, 16, 0.68) 55%, transparent);
    }

    .chat-card { position: relative; }
    .chat-card::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 82% 12%, rgba(255, 107, 0, 0.1), transparent 25rem); }
    .analysis-orbit { position: relative; display: grid; width: 78px; height: 48px; place-items: center; overflow: hidden; }
    .analysis-orbit::before, .analysis-orbit::after { content: ""; position: absolute; border: 1px solid rgba(255, 138, 31, 0.35); border-radius: 50%; animation: orbitSpin 5s linear infinite; }
    .analysis-orbit::before { width: 42px; height: 42px; transform: rotate(24deg); }
    .analysis-orbit::after { width: 62px; height: 28px; animation-direction: reverse; animation-duration: 7s; }
    .analysis-core { width: 9px; height: 9px; border-radius: 50%; background: var(--accent-soft); box-shadow: 0 0 20px var(--accent); animation: corePulse 1.8s ease-in-out infinite; }
    @keyframes orbitSpin { to { transform: rotate(384deg); } }
    @keyframes corePulse { 50% { transform: scale(1.45); opacity: 0.65; } }

    .messages { position: relative; gap: 18px; padding: 26px; }
    .messages::before { content: ""; position: absolute; left: 37px; top: 22px; bottom: 22px; width: 1px; background: linear-gradient(var(--accent), rgba(255, 107, 0, 0.05)); opacity: 0.35; }
    .message { position: relative; max-width: min(86%, 680px); animation: messageReveal 420ms cubic-bezier(.2,.8,.2,1) both; }
    .message.ai { align-self: flex-start; margin-left: 28px; border-color: rgba(255, 107, 0, 0.16); border-radius: 5px 22px 22px 22px; background: linear-gradient(145deg, rgba(37, 45, 54, 0.5), rgba(255, 255, 255, 0.025)); box-shadow: 0 18px 42px rgba(0, 0, 0, 0.13); }
    .message.ai::before { content: ""; position: absolute; left: -35px; top: 17px; width: 11px; height: 11px; border: 2px solid var(--accent-soft); border-radius: 50%; background: var(--surface); box-shadow: 0 0 18px rgba(255, 107, 0, 0.55); }
    .message.ai::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: linear-gradient(110deg, transparent 20%, rgba(255, 138, 31, 0.08) 45%, transparent 70%); transform: translateX(-120%); animation: insightSweep 4.8s ease-in-out infinite; }
    .message.ai.thinking { color: var(--accent-soft); animation: thinkingFloat 1.5s ease-in-out infinite alternate; }
    .message.user { border: 1px solid rgba(255, 138, 31, 0.22); border-radius: 20px 20px 5px 20px; color: var(--text); background: rgba(255, 107, 0, 0.11); }
    @keyframes messageReveal { from { opacity: 0; transform: translateY(14px) scale(0.985); } }
    @keyframes insightSweep { 0%, 58% { transform: translateX(-120%); } 86%, 100% { transform: translateX(120%); } }
    @keyframes thinkingFloat { to { transform: translateY(-4px); filter: brightness(1.2); } }

    @media (max-width: 720px) {
      .progress-item { min-height: 158px; }
      .progress-item.featured { min-height: 190px; }
    }


    .exercise-media-section { margin-top: 20px; padding: 24px; }
    .exercise-media-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
    .exercise-media-head h3 { margin: 0; font-size: 1rem; }
    .exercise-media-head p { margin: 6px 0 0; color: var(--muted); font-size: 0.76rem; line-height: 1.45; }
    .exercise-photo-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
    .exercise-photo-card { overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: rgba(255, 255, 255, 0.025); transition: transform 220ms ease, border-color 220ms ease, background 220ms ease; }
    .exercise-photo-card.current { border-color: rgba(255, 107, 0, 0.44); background: rgba(255, 107, 0, 0.07); box-shadow: 0 16px 36px rgba(0, 0, 0, 0.15); }
    .exercise-photo-card:hover { transform: translateY(-2px); }
    .exercise-photo-frame { position: relative; display: grid; aspect-ratio: 4 / 3; place-items: center; overflow: hidden; background: radial-gradient(circle at 50% 20%, rgba(255, 107, 0, 0.18), transparent 55%), linear-gradient(145deg, #252b31, #111417); }
    .exercise-photo-frame img { width: 100%; height: 100%; object-fit: cover; }
    .exercise-photo-empty { display: grid; gap: 8px; place-items: center; color: var(--muted); text-align: center; }
    .exercise-photo-empty svg { width: 28px; height: 28px; color: var(--accent-soft); opacity: 0.88; }
    .exercise-photo-empty span { font-size: 0.68rem; }
    .exercise-photo-current { position: absolute; top: 10px; left: 10px; padding: 5px 8px; border: 1px solid rgba(255, 138, 31, 0.26); border-radius: 999px; color: #1a120c; background: var(--accent-soft); font-size: 0.6rem; font-weight: 900; letter-spacing: 0.07em; text-transform: uppercase; }
    .exercise-photo-footer { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px; padding: 13px; }
    .exercise-photo-footer strong { display: block; font-size: 0.8rem; }
    .exercise-photo-footer span { display: block; margin-top: 4px; color: var(--muted); font-size: 0.65rem; }
    .exercise-photo-button { min-height: 34px; padding: 0 10px; border: 1px solid rgba(255, 107, 0, 0.24); border-radius: 11px; cursor: pointer; color: var(--accent-soft); background: rgba(255, 107, 0, 0.07); font-size: 0.68rem; font-weight: 850; }

    @media (max-width: 1100px) {
      .exercise-photo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }

    @media (max-width: 520px) {
      .exercise-media-section { padding: 18px; }
      .exercise-media-head { align-items: start; flex-direction: column; }
      .exercise-photo-grid { display: grid; grid-auto-flow: column; grid-auto-columns: 82%; grid-template-columns: none; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; }
      .exercise-photo-card { scroll-snap-align: start; }
    }

    .chat-limit-row { display: flex; justify-content: flex-end; gap: 12px; padding: 8px 2px 0; color: var(--muted); font-size: 0.69rem; }
    .chat-limit-count.steady { color: var(--accent-soft); }
    .chat-limit-count { color: var(--accent-soft); font-variant-numeric: tabular-nums; }
    .chat-limit-count.warning { color: var(--warning); }
    .chat-limit-count.danger { color: var(--danger); }
    .chat-limit-row span:last-child { opacity: 0.72; }


    /* Palette neutra e funzionale: niente neon, griglie o superfici AI-style. */
    body, body.focus-mode { background: var(--bg); }
    .login-screen { background: var(--bg); }
    .login-screen::before, .login-screen::after, .login-card::before, .logo-symbol::before, .chat-card::before { display: none; }
    .login-card { border-color: var(--line); background: var(--surface); box-shadow: var(--shadow); backdrop-filter: none; }
    .logo-symbol { border-color: var(--line); color: var(--accent-soft); background: var(--surface-3); box-shadow: none; }
    .sidebar, .mobile-nav { background: var(--surface); backdrop-filter: none; }
    .topbar, body.focus-mode .topbar { background: var(--bg); backdrop-filter: none; }
    .card { background: var(--surface); box-shadow: var(--shadow); }
    .primary-button { color: #1a120c; background: var(--accent); box-shadow: none; }
    .analysis-orbit, .message.ai::before, .message.ai::after { display: none; }
    .message.ai { margin-left: 0; border-color: var(--line); border-radius: var(--radius-md); background: var(--surface-2); box-shadow: none; }
    .message.ai.thinking { animation: none; }
    .message.user { border-color: var(--line); border-radius: var(--radius-md); color: var(--text); background: var(--surface-3); }
    .proposal-card::before, .exercise-stage::after, .messages::before { display: none; }
    .readiness-dial, .rest-ring { box-shadow: none; }
    .chart-line { filter: none; }