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

:root {
    --bg: #0a0a0f;
    --bg-card: #111118;
    --bg-elevated: #18181f;
    --bg-input: #1e1e28;
    --border: #1f1f2e;
    --border-light: #2a2a3d;
    --text: #e8e8ec;
    --text-muted: #8888a0;
    --text-dim: #555570;
    --neon: #00ffc8;
    --neon-dim: rgba(0,255,200,0.08);
    --neon-glow: rgba(0,255,200,0.25);
    --neon2: #00d4ff;
    --neon2-dim: rgba(0,212,255,0.08);
    --green: #00ff6a;
    --green-dim: rgba(0,255,106,0.08);
    --red: #ff2d55;
    --red-dim: rgba(255,45,85,0.08);
    --yellow: #ffd600;
    --yellow-dim: rgba(255,214,0,0.08);
    --blue: #3d7fff;
    --blue-dim: rgba(61,127,255,0.08);
    --orange: #ff8a00;
    --orange-dim: rgba(255,138,0,0.08);
    --purple: #b44dff;
    --purple-dim: rgba(180,77,255,0.08);
    --cyan: #00e5ff;
    --cyan-dim: rgba(0,229,255,0.08);
    --pink: #ff3d8e;
    --pink-dim: rgba(255,61,142,0.08);
    --teal: #00d4aa;
    --teal-dim: rgba(0,212,170,0.08);
    --lime: #a0ff00;
    --lime-dim: rgba(160,255,0,0.08);
    --rose: #ff4070;
    --rose-dim: rgba(255,64,112,0.08);
    --sky: #00b8ff;
    --sky-dim: rgba(0,184,255,0.08);
    --radius: 4px;
    --radius-sm: 3px;
    --radius-lg: 6px;
    --shadow: 0 0 30px rgba(0,255,200,0.05);
    --transition: 0.15s ease;
    --sidebar-width: 200px;
    --topbar-height: 48px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'Courier New', 'Consolas', monospace;
}

html { font-size: 16px; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Subtle grid bg */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        linear-gradient(rgba(0,255,200,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,200,0.015) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

.app { display: flex; min-height: 100vh; position: relative; z-index: 1; }

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 20px 16px;
    border-bottom: 1px solid var(--border);
}

.logo { display: flex; align-items: center; gap: 8px; }

.logo-icon {
    background: var(--neon);
    color: var(--bg);
    font-weight: 900;
    font-size: 0.7rem;
    width: 32px; height: 32px;
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    letter-spacing: -1px;
    text-transform: uppercase;
    box-shadow: 0 0 12px var(--neon-glow);
}

.logo-text {
    font-weight: 800;
    font-size: 0.95rem;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.sidebar-nav { flex: 1; padding: 8px 6px; display: flex; flex-direction: column; gap: 2px; }

.sidebar-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 12px;
    background: transparent; border: none;
    border-radius: var(--radius-sm);
    color: var(--text-dim);
    font-size: 0.8rem; font-weight: 600;
    cursor: pointer; transition: all var(--transition);
    font-family: var(--font);
    text-align: left; width: 100%;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.sidebar-btn:hover { background: var(--bg-elevated); color: var(--text-muted); }
.sidebar-btn.active { background: var(--neon-dim); color: var(--neon); border-left: 2px solid var(--neon); }
.sidebar-btn svg { flex-shrink: 0; }

.sidebar-footer { padding: 12px 16px; border-top: 1px solid var(--border); }
.version { font-size: 0.65rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

/* ===== MOBILE ===== */
.mobile-topbar {
    display: none; position: fixed; top: 0; left: 0; right: 0;
    height: var(--topbar-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    z-index: 90; align-items: center; padding: 0 14px; gap: 10px;
}
.hamburger { background: none; border: none; cursor: pointer; padding: 4px; display: flex; flex-direction: column; gap: 3px; }
.hamburger span { display: block; width: 18px; height: 2px; background: var(--neon); border-radius: 1px; }
.mobile-title { font-weight: 800; font-size: 0.85rem; color: var(--text); text-transform: uppercase; letter-spacing: 1px; }
.mobile-spacer { flex: 1; }
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 95; }

/* ===== CONTENT ===== */
.content { flex: 1; margin-left: var(--sidebar-width); padding: 32px; max-width: 920px; }

/* ===== SCREENS ===== */
.screen { display: none; }
.screen.active { display: block; animation: slideIn 0.2s ease; }
@keyframes slideIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.screen-header { margin-bottom: 28px; }
.screen-header h1 {
    font-size: 1.4rem; font-weight: 800; margin-bottom: 4px;
    text-transform: uppercase; letter-spacing: 2px;
}
.screen-header p { color: var(--text-dim); font-size: 0.8rem; letter-spacing: 0.3px; }

/* ===== TEST CARDS ===== */
.tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
}

.test-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden; cursor: pointer;
    transition: all var(--transition);
    position: relative;
}
.test-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow);
}
.test-card:hover .card-accent { height: 3px; }

.card-accent { height: 2px; transition: height 0.15s ease; }
.card-accent.visual { background: var(--green); }
.card-accent.audio { background: var(--blue); }
.card-accent.choice { background: var(--orange); }
.card-accent.aiming { background: var(--red); }
.card-accent.sequence { background: var(--purple); }
.card-accent.stroop { background: var(--yellow); }
.card-accent.number { background: var(--cyan); }
.card-accent.chimp { background: var(--pink); }
.card-accent.verbal { background: var(--teal); }
.card-accent.typing { background: var(--lime); }
.card-accent.colormatch { background: var(--rose); }
.card-accent.oddoneout { background: var(--sky); }

.card-body { padding: 16px; }

.card-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 10px;
}
.card-icon.visual  { background: var(--green-dim);  color: var(--green);  }
.card-icon.audio   { background: var(--blue-dim);   color: var(--blue);   }
.card-icon.choice  { background: var(--orange-dim);  color: var(--orange); }
.card-icon.aiming  { background: var(--red-dim);    color: var(--red);    }
.card-icon.sequence{ background: var(--purple-dim);  color: var(--purple); }
.card-icon.stroop  { background: var(--yellow-dim);  color: var(--yellow); }
.card-icon.number  { background: var(--cyan-dim);    color: var(--cyan);   }
.card-icon.chimp   { background: var(--pink-dim);    color: var(--pink);   }
.card-icon.verbal  { background: var(--teal-dim);    color: var(--teal);   }
.card-icon.typing  { background: var(--lime-dim);    color: var(--lime);   }
.card-icon.colormatch { background: var(--rose-dim); color: var(--rose);   }
.card-icon.oddoneout  { background: var(--sky-dim);  color: var(--sky);    }

.card-body h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.card-body p { color: var(--text-dim); font-size: 0.75rem; margin-bottom: 10px; line-height: 1.5; }
.card-meta { display: flex; gap: 10px; font-size: 0.65rem; color: var(--text-dim); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; font-family: var(--mono); }

/* ===== TEST SCREEN ===== */
.test-header {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 20px; padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.back-btn {
    display: flex; align-items: center; gap: 4px;
    padding: 6px 10px;
    background: var(--bg-elevated); border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-dim); font-size: 0.75rem; font-weight: 600;
    cursor: pointer; transition: all var(--transition);
    font-family: var(--font); text-transform: uppercase; letter-spacing: 0.5px;
}
.back-btn:hover { color: var(--text); border-color: var(--border-light); }

#test-title { flex: 1; font-size: 1rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1.5px; }

.round-indicator {
    font-size: 0.75rem; color: var(--neon);
    font-weight: 700; font-family: var(--mono);
    background: var(--neon-dim); padding: 5px 10px;
    border-radius: var(--radius-sm); border: 1px solid rgba(0,255,200,0.15);
}

/* Progress */
.progress-bar-container { height: 3px; background: var(--bg-elevated); border-radius: 2px; margin-bottom: 20px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--neon); border-radius: 2px; width: 0%; transition: width 0.3s ease; box-shadow: 0 0 8px var(--neon-glow); }

/* Instructions */
.instructions-panel {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px;
    text-align: center; max-width: 520px; margin: 0 auto;
}
.instructions-icon { width: 56px; height: 56px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.instructions-panel h3 { font-size: 1rem; font-weight: 800; margin-bottom: 10px; text-transform: uppercase; letter-spacing: 1px; }
.instructions-body { color: var(--text-dim); font-size: 0.8rem; margin-bottom: 20px; line-height: 1.7; }
.instructions-body p { margin-bottom: 6px; }
.instructions-body strong { color: var(--neon); }

.instructions-details {
    display: flex; justify-content: center; gap: 20px;
    margin-bottom: 24px; padding: 12px;
    background: var(--bg-elevated); border-radius: var(--radius);
    border: 1px solid var(--border);
}
.detail-item { text-align: center; }
.detail-label { display: block; font-size: 0.6rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 2px; }
.detail-value { font-size: 0.85rem; font-weight: 700; color: var(--neon); font-family: var(--mono); }

.start-btn {
    padding: 12px 36px;
    background: var(--neon); color: var(--bg);
    border: none; border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 800;
    cursor: pointer; transition: all var(--transition);
    font-family: var(--font);
    text-transform: uppercase; letter-spacing: 1.5px;
    box-shadow: 0 0 20px var(--neon-glow);
}
.start-btn:hover { box-shadow: 0 0 30px var(--neon-glow), 0 0 60px rgba(0,255,200,0.1); }

/* Countdown Overlay */
.countdown-overlay {
    position: absolute; inset: 0;
    background: var(--bg-card);
    display: flex; align-items: center; justify-content: center;
    z-index: 10; border-radius: var(--radius-lg);
}
.countdown-num {
    font-size: 6rem; font-weight: 900;
    font-family: var(--mono);
    color: var(--neon);
    text-shadow: 0 0 40px var(--neon-glow);
    animation: countPulse 0.6s ease;
}
.countdown-go {
    font-size: 3rem; font-weight: 900;
    color: var(--neon); text-transform: uppercase;
    letter-spacing: 8px;
    text-shadow: 0 0 40px var(--neon-glow);
    animation: countPulse 0.3s ease;
}
@keyframes countPulse { 0% { transform: scale(1.4); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }

/* Test Area */
.test-area {
    min-height: 320px; border-radius: var(--radius-lg);
    background: var(--bg-card); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
    user-select: none; -webkit-user-select: none;
}
.test-area.waiting { background: rgba(255,45,85,0.05); border-color: rgba(255,45,85,0.2); cursor: pointer; }
.test-area.ready { background: rgba(0,255,106,0.05); border-color: rgba(0,255,106,0.2); cursor: pointer; }
.test-area.too-early { background: rgba(255,45,85,0.08); border-color: rgba(255,45,85,0.3); }

.test-area .area-text { font-size: 1.2rem; font-weight: 700; text-align: center; padding: 20px; pointer-events: none; text-transform: uppercase; letter-spacing: 1px; }
.test-area .area-subtext { font-size: 0.75rem; color: var(--text-dim); margin-top: 6px; font-weight: 400; text-transform: none; letter-spacing: 0; }
.test-area .reaction-flash { font-size: 3.5rem; font-weight: 900; color: var(--neon); font-family: var(--mono); text-shadow: 0 0 30px var(--neon-glow); }

/* Live Score */
.live-score {
    display: flex; justify-content: center; gap: 24px;
    margin-top: 12px; padding: 10px 16px;
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
}
.live-stat { text-align: center; }
.live-label { display: block; font-size: 0.6rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.live-value { font-size: 1rem; font-weight: 800; color: var(--neon); font-family: var(--mono); }

/* ===== CHOICE TEST ===== */
.choice-prompt { font-size: 4rem; font-weight: 900; margin-bottom: 28px; color: var(--text); }
.choice-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; max-width: 300px; width: 100%; }
.choice-btn {
    padding: 16px; background: var(--bg-elevated);
    border: 2px solid var(--border); border-radius: var(--radius);
    font-size: 1.6rem; cursor: pointer; transition: all 0.1s ease;
    color: var(--text); font-family: var(--font);
}
.choice-btn:hover { border-color: var(--neon); background: var(--neon-dim); }
.choice-btn.correct { border-color: var(--green); background: var(--green-dim); }
.choice-btn.wrong { border-color: var(--red); background: var(--red-dim); }

/* ===== AIM TEST ===== */
.aim-target {
    position: absolute; width: 44px; height: 44px;
    background: var(--red); border-radius: 50%;
    cursor: crosshair; transition: transform 0.08s ease;
    box-shadow: 0 0 16px rgba(255,45,85,0.4);
}
.aim-target:hover { transform: scale(1.05); }
.aim-target::after {
    content: ''; position: absolute; top: 50%; left: 50%;
    width: 10px; height: 10px; background: var(--bg);
    border-radius: 50%; transform: translate(-50%, -50%);
}

/* ===== SEQUENCE TEST ===== */
.seq-status { font-size: 0.9rem; font-weight: 700; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; }
.seq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; max-width: 200px; }
.seq-cell {
    aspect-ratio: 1; background: var(--bg-elevated);
    border: 2px solid var(--border); border-radius: var(--radius-sm);
    cursor: pointer; transition: all 0.1s ease;
}
.seq-cell.lit { background: var(--neon); border-color: var(--neon); box-shadow: 0 0 12px var(--neon-glow); }
.seq-cell.correct-flash { background: var(--green); border-color: var(--green); }
.seq-cell.wrong-flash { background: var(--red); border-color: var(--red); }

/* ===== STROOP TEST ===== */
.stroop-word { font-size: 3rem; font-weight: 900; margin-bottom: 28px; letter-spacing: 3px; text-transform: uppercase; }
.stroop-choices { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.stroop-btn {
    width: 48px; height: 48px; border-radius: 50%;
    border: 2px solid var(--border); cursor: pointer;
    transition: all 0.1s ease;
}
.stroop-btn:hover { transform: scale(1.15); border-color: var(--text); }
.stroop-btn.correct { box-shadow: 0 0 0 3px var(--green), 0 0 12px rgba(0,255,106,0.3); }
.stroop-btn.wrong { box-shadow: 0 0 0 3px var(--red); opacity: 0.4; }

/* ===== NUMBER MEMORY ===== */
.number-display { font-size: 3rem; font-weight: 900; letter-spacing: 10px; color: var(--cyan); font-family: var(--mono); margin-bottom: 20px; text-shadow: 0 0 20px rgba(0,229,255,0.3); }
.number-input {
    padding: 12px 16px; background: var(--bg-elevated);
    border: 2px solid var(--border); border-radius: var(--radius);
    color: var(--text); font-size: 1.4rem; font-weight: 700;
    text-align: center; font-family: var(--mono); letter-spacing: 6px;
    width: 260px; max-width: 100%; outline: none;
}
.number-input:focus { border-color: var(--cyan); box-shadow: 0 0 12px rgba(0,229,255,0.2); }
.number-input.correct { border-color: var(--green); background: var(--green-dim); }
.number-input.wrong { border-color: var(--red); background: var(--red-dim); }
.number-submit {
    margin-top: 12px; padding: 10px 28px;
    background: var(--cyan); color: var(--bg); border: none;
    border-radius: var(--radius-sm); font-size: 0.8rem;
    font-weight: 800; cursor: pointer; font-family: var(--font);
    text-transform: uppercase; letter-spacing: 1px;
}

/* ===== CHIMP TEST ===== */
.chimp-grid { display: grid; gap: 5px; width: 100%; max-width: 380px; }
.chimp-cell {
    aspect-ratio: 1; background: var(--bg-elevated);
    border: 2px solid var(--border); border-radius: var(--radius-sm);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    font-size: 1rem; font-weight: 800; color: var(--text); font-family: var(--mono);
}
.chimp-cell.numbered { background: var(--pink); border-color: var(--pink); color: white; box-shadow: 0 0 8px rgba(255,61,142,0.3); }
.chimp-cell.hidden-num { background: var(--bg-elevated); border-color: var(--border); color: transparent; }
.chimp-cell.correct-hit { background: var(--green-dim); border-color: var(--green); color: var(--green); }
.chimp-cell.wrong-hit { background: var(--red-dim); border-color: var(--red); }

/* ===== VERBAL MEMORY ===== */
.verbal-word { font-size: 2.2rem; font-weight: 800; margin-bottom: 28px; text-transform: lowercase; letter-spacing: 2px; }
.verbal-btns { display: flex; gap: 12px; justify-content: center; }
.verbal-btn {
    padding: 12px 32px; border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 700; cursor: pointer;
    font-family: var(--font); border: 2px solid var(--border);
    background: var(--bg-elevated); color: var(--text);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.verbal-btn:hover { border-color: var(--teal); }
.verbal-btn.correct-pick { background: var(--green-dim); border-color: var(--green); }
.verbal-btn.wrong-pick { background: var(--red-dim); border-color: var(--red); }

/* ===== TYPING TEST ===== */
.typing-word { font-size: 1.8rem; font-weight: 800; margin-bottom: 20px; letter-spacing: 4px; font-family: var(--mono); color: var(--lime); text-shadow: 0 0 16px rgba(160,255,0,0.2); }
.typing-input {
    padding: 12px 16px; background: var(--bg-elevated);
    border: 2px solid var(--border); border-radius: var(--radius);
    color: var(--text); font-size: 1.2rem; font-weight: 700;
    text-align: center; font-family: var(--mono);
    width: 280px; max-width: 100%; outline: none;
}
.typing-input:focus { border-color: var(--lime); box-shadow: 0 0 12px rgba(160,255,0,0.15); }

/* ===== COLOR MATCH ===== */
.colormatch-display { display: flex; gap: 20px; align-items: center; margin-bottom: 28px; }
.colormatch-swatch { width: 90px; height: 90px; border-radius: var(--radius); border: 2px solid var(--border); }
.colormatch-vs { font-size: 0.8rem; font-weight: 800; color: var(--text-dim); text-transform: uppercase; letter-spacing: 2px; }
.colormatch-btns { display: flex; gap: 12px; }
.colormatch-btn {
    padding: 12px 32px; border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 700; cursor: pointer;
    font-family: var(--font); border: 2px solid var(--border);
    background: var(--bg-elevated); color: var(--text);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.colormatch-btn:hover { border-color: var(--rose); }
.colormatch-btn.correct-pick { background: var(--green-dim); border-color: var(--green); }
.colormatch-btn.wrong-pick { background: var(--red-dim); border-color: var(--red); }

/* ===== ODD ONE OUT ===== */
.oddgrid { display: grid; gap: 6px; max-width: 340px; width: 100%; }
.odd-cell { aspect-ratio: 1; border-radius: var(--radius-sm); cursor: pointer; border: 2px solid transparent; transition: all 0.08s ease; }
.odd-cell:hover { opacity: 0.85; }
.odd-cell.correct-pick { border-color: var(--green); box-shadow: 0 0 12px rgba(0,255,106,0.3); }
.odd-cell.wrong-pick { border-color: var(--red); box-shadow: 0 0 12px rgba(255,45,85,0.3); }

/* ===== RESULTS ===== */
.results-content { max-width: 680px; margin: 0 auto; }
.results-header { text-align: center; margin-bottom: 28px; }
.results-header h2 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); }

.results-rating {
    display: inline-flex; flex-direction: column; align-items: center;
    padding: 16px 32px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius);
}
.rating-label { font-size: 2.5rem; font-weight: 900; font-family: var(--mono); text-shadow: 0 0 20px var(--neon-glow); }
.rating-desc { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 2px; font-weight: 700; }

/* PB indicator */
.pb-badge {
    display: inline-block; margin-top: 8px;
    padding: 4px 12px; background: var(--neon);
    color: var(--bg); font-size: 0.65rem; font-weight: 900;
    border-radius: var(--radius-sm); text-transform: uppercase;
    letter-spacing: 1.5px;
    box-shadow: 0 0 16px var(--neon-glow);
    animation: pbPulse 1s ease infinite;
}
@keyframes pbPulse { 0%, 100% { box-shadow: 0 0 16px var(--neon-glow); } 50% { box-shadow: 0 0 30px var(--neon-glow), 0 0 60px rgba(0,255,200,0.15); } }

/* Rank Badge */
.rank-badge {
    display: inline-block; padding: 3px 10px;
    font-size: 0.6rem; font-weight: 800;
    border-radius: var(--radius-sm);
    text-transform: uppercase; letter-spacing: 1px;
    margin-top: 6px;
}
.rank-badge.bronze { background: rgba(205,127,50,0.15); color: #cd7f32; border: 1px solid rgba(205,127,50,0.3); }
.rank-badge.silver { background: rgba(192,192,192,0.1); color: #c0c0c0; border: 1px solid rgba(192,192,192,0.2); }
.rank-badge.gold { background: rgba(255,215,0,0.1); color: #ffd700; border: 1px solid rgba(255,215,0,0.2); }
.rank-badge.platinum { background: rgba(0,255,200,0.08); color: var(--neon); border: 1px solid rgba(0,255,200,0.2); }
.rank-badge.diamond { background: rgba(0,212,255,0.08); color: var(--neon2); border: 1px solid rgba(0,212,255,0.2); }
.rank-badge.master { background: rgba(180,77,255,0.1); color: var(--purple); border: 1px solid rgba(180,77,255,0.2); }
.rank-badge.legend { background: rgba(255,45,85,0.1); color: var(--red); border: 1px solid rgba(255,45,85,0.2); text-shadow: 0 0 8px rgba(255,45,85,0.3); }

.result-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 24px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; text-align: center; }
.stat-card.highlight { border-color: rgba(0,255,200,0.2); background: var(--neon-dim); }
.stat-label { display: block; font-size: 0.6rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 2px; }
.stat-value { display: block; font-size: 1.4rem; font-weight: 900; font-family: var(--mono); }
.stat-unit { font-size: 0.65rem; color: var(--text-dim); font-family: var(--font); }

/* Extra stats row */
.extra-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 24px; }

.chart-container { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 20px; }
.chart-container h3 { font-size: 0.7rem; font-weight: 700; margin-bottom: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.chart-container canvas { width: 100% !important; height: auto !important; }
.chart-empty { text-align: center; color: var(--text-dim); padding: 32px 16px; font-size: 0.8rem; }

/* Percentile */
.percentile-bar-container { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 20px; }
.percentile-bar-container h3 { font-size: 0.7rem; font-weight: 700; margin-bottom: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.percentile-bar { height: 6px; background: var(--bg-elevated); border-radius: 4px; position: relative; margin-bottom: 8px; }
.percentile-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--red), var(--yellow), var(--neon)); width: 100%; }
.percentile-marker {
    position: absolute; top: -6px; width: 18px; height: 18px;
    background: var(--neon); border-radius: 50%;
    transform: translateX(-50%); transition: left 0.6s ease;
    box-shadow: 0 0 10px var(--neon-glow);
}
.percentile-label { position: absolute; top: -24px; font-size: 0.65rem; font-weight: 800; white-space: nowrap; color: var(--neon); font-family: var(--mono); }
.percentile-scale { display: flex; justify-content: space-between; font-size: 0.6rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }

.result-actions { display: flex; gap: 10px; justify-content: center; }
.action-btn {
    padding: 10px 24px; border-radius: var(--radius-sm);
    font-size: 0.8rem; font-weight: 700; cursor: pointer;
    font-family: var(--font); border: none;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.action-btn.primary { background: var(--neon); color: var(--bg); box-shadow: 0 0 12px var(--neon-glow); }
.action-btn.primary:hover { box-shadow: 0 0 20px var(--neon-glow); }
.action-btn.secondary { background: var(--bg-elevated); color: var(--text-muted); border: 1px solid var(--border); }
.action-btn.secondary:hover { border-color: var(--border-light); color: var(--text); }

/* ===== STATS ===== */
.stats-overview { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 24px; }
.overview-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; text-align: center; }
.overview-label { display: block; font-size: 0.6rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.overview-value { font-size: 1.3rem; font-weight: 900; color: var(--neon); font-family: var(--mono); }

.stats-breakdown { margin-bottom: 24px; }
.stats-breakdown h3 { font-size: 0.75rem; font-weight: 700; margin-bottom: 10px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
#test-breakdown { display: grid; gap: 6px; }
.breakdown-item { display: flex; align-items: center; gap: 10px; padding: 12px 14px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.breakdown-icon { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.breakdown-name { flex: 1; font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.3px; }
.breakdown-stats { display: flex; gap: 14px; font-size: 0.7rem; color: var(--text-dim); font-family: var(--mono); }
.breakdown-stats strong { color: var(--neon); }

.clear-btn {
    display: block; margin: 0 auto; padding: 8px 20px;
    background: transparent; border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-dim);
    font-size: 0.7rem; font-weight: 600; cursor: pointer;
    font-family: var(--font); text-transform: uppercase; letter-spacing: 0.5px;
}
.clear-btn:hover { border-color: var(--red); color: var(--red); }

/* ===== LEADERBOARD ===== */
.leaderboard-tabs { display: flex; gap: 4px; margin-bottom: 16px; flex-wrap: wrap; }
.lb-tab {
    padding: 6px 12px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-dim);
    font-size: 0.7rem; font-weight: 600; cursor: pointer;
    font-family: var(--font); text-transform: uppercase; letter-spacing: 0.5px;
}
.lb-tab:hover { border-color: var(--border-light); color: var(--text-muted); }
.lb-tab.active { background: var(--neon-dim); border-color: rgba(0,255,200,0.2); color: var(--neon); }

.leaderboard-list { display: grid; gap: 6px; }
.lb-entry { display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.lb-rank {
    width: 28px; height: 28px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 0.7rem; font-family: var(--mono);
    background: var(--bg-elevated); color: var(--text-dim); flex-shrink: 0;
}
.lb-rank.gold { background: rgba(255,215,0,0.15); color: #ffd700; }
.lb-rank.silver { background: rgba(192,192,192,0.1); color: #c0c0c0; }
.lb-rank.bronze { background: rgba(205,127,50,0.1); color: #cd7f32; }
.lb-info { flex: 1; }
.lb-time { font-weight: 800; font-size: 0.9rem; font-family: var(--mono); color: var(--neon); }
.lb-date { font-size: 0.65rem; color: var(--text-dim); }
.lb-accuracy { font-size: 0.75rem; color: var(--text-dim); font-family: var(--mono); }
.lb-empty { text-align: center; padding: 32px 16px; color: var(--text-dim); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); transition: transform 0.25s ease; }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.open { display: block; }
    .mobile-topbar { display: flex; }
    .content { margin-left: 0; padding: 16px; padding-top: calc(var(--topbar-height) + 16px); }
    .tests-grid { grid-template-columns: 1fr; }
    .result-stats, .extra-stats { grid-template-columns: repeat(2, 1fr); }
    .stats-overview { grid-template-columns: repeat(2, 1fr); }
    .test-header { flex-wrap: wrap; }
    .instructions-details { flex-direction: column; gap: 8px; }
    .choice-grid { max-width: 240px; }
    .seq-grid { max-width: 160px; }
}
@media (max-width: 480px) {
    .content { padding: 10px; padding-top: calc(var(--topbar-height) + 10px); }
    .stroop-word { font-size: 2.2rem; }
    .choice-prompt { font-size: 3rem; }
    .number-display { font-size: 2rem; }
}
@media (pointer: coarse) {
    .choice-btn { padding: 20px; font-size: 1.8rem; }
    .stroop-btn { width: 56px; height: 56px; }
    .aim-target { width: 52px; height: 52px; }
    .seq-cell { min-height: 52px; }
    .start-btn, .action-btn { min-height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}