/* CSS Design System & Theme Custom Variables */
:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Transition speeds */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- THEMES --- */
/* Dark Neon Theme (Default) */
[data-theme="dark"] {
    --bg-color: #06070a;
    --sidebar-bg: rgba(10, 11, 18, 0.85);
    --card-bg: rgba(20, 22, 35, 0.6);
    --text-color: #f1f3f9;
    --text-secondary: #8b92b0;
    --accent-color: #00f2fe;
    --accent-secondary: #9b51e0;
    --accent-rgb: 0, 242, 254;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 242, 254, 0.4);
    --glow-color: rgba(0, 242, 254, 0.25);
    --shadow-color: rgba(0, 0, 0, 0.5);
    --scrollbar-bg: #0b0c13;
    --scrollbar-thumb: #23263a;
}

/* Frosted Glass Light Theme */
[data-theme="light"] {
    --bg-color: #f3f4f8;
    --sidebar-bg: rgba(255, 255, 255, 0.85);
    --card-bg: rgba(255, 255, 255, 0.7);
    --text-color: #1e2230;
    --text-secondary: #656d8a;
    --accent-color: #4facfe;
    --accent-secondary: #00f2fe;
    --accent-rgb: 79, 172, 254;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(79, 172, 254, 0.5);
    --glow-color: rgba(79, 172, 254, 0.15);
    --shadow-color: rgba(0, 0, 0, 0.05);
    --scrollbar-bg: #e6e8f0;
    --scrollbar-thumb: #c7cbd9;
}

/* Cyberpunk Mode Theme */
[data-theme="cyberpunk"] {
    --bg-color: #100b1d;
    --sidebar-bg: rgba(18, 5, 28, 0.9);
    --card-bg: rgba(30, 8, 48, 0.65);
    --text-color: #00ff66;
    --text-secondary: #ff007f;
    --accent-color: #ffe600;
    --accent-secondary: #ff007f;
    --accent-rgb: 255, 230, 0;
    --border-color: rgba(255, 0, 127, 0.3);
    --border-hover: rgba(255, 230, 0, 0.8);
    --glow-color: rgba(255, 230, 0, 0.4);
    --shadow-color: rgba(0, 0, 0, 0.7);
    --scrollbar-bg: #1c0e30;
    --scrollbar-thumb: #ff007f;
}

/* --- GENERAL RESET & BASE --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-body);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--scrollbar-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* --- APP LAYOUT --- */
.app-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

/* --- SIDEBAR --- */
.sidebar {
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    height: 100vh;
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
    text-shadow: 0 0 10px var(--glow-color);
}

.logo-glow {
    animation: logoPulse 2s infinite ease-in-out;
}

@keyframes logoPulse {
    0%, 100% { filter: drop-shadow(0 0 2px var(--accent-color)); transform: scale(1); }
    50% { filter: drop-shadow(0 0 8px var(--accent-color)); transform: scale(1.1); }
}

.sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.sidebar-section h3 {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    font-weight: 700;
    margin-bottom: 0.2rem;
}

/* Navigation buttons (Modes) */
.nav-modes {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mode-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 0.8rem 1rem;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: all var(--transition-normal);
}

.mode-btn:hover {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.05);
}

.mode-btn.active {
    color: var(--accent-color);
    background: rgba(var(--accent-rgb), 0.08);
    border-color: var(--border-hover);
    box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.05);
}

.mode-btn.active .icon {
    transform: scale(1.15);
    filter: drop-shadow(0 0 5px var(--accent-color));
}

/* Time Selection Grid */
.time-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.time-btn {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 0.2rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-fast);
}

.time-btn:hover {
    color: var(--text-color);
    border-color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
}

.time-btn.active {
    background: var(--accent-color);
    color: #06070a;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--glow-color);
    font-weight: 700;
}

/* Settings Controls */
.settings-section {
    margin-top: auto;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.toggle-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    color: var(--text-color);
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    transition: all var(--transition-fast);
}

.toggle-btn.off {
    border-color: #ff3860;
    color: #ff3860;
    background: rgba(255, 56, 96, 0.05);
}

.toggle-btn.on {
    border-color: #23d160;
    color: #23d160;
    background: rgba(35, 209, 96, 0.05);
}

.select-dropdown {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    outline: none;
    transition: all var(--transition-fast);
}

.select-dropdown:hover {
    border-color: var(--text-secondary);
}

.select-dropdown option {
    background: var(--bg-color);
    color: var(--text-color);
}

/* --- MAIN CONTENT WORKSPACE --- */
.main-content {
    padding: 2.5rem 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    overflow-y: auto;
    max-height: 100vh;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.main-header h1 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 0.2rem;
}

/* High Score Badge */
.high-score-badge {
    background: rgba(255, 230, 0, 0.06);
    border: 1px solid rgba(255, 230, 0, 0.25);
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    box-shadow: 0 4px 15px rgba(255, 230, 0, 0.02);
}

.high-score-badge .label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: rgba(255, 230, 0, 0.8);
}

.high-score-badge .value {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: #ffe600;
    text-shadow: 0 0 8px rgba(255, 230, 0, 0.2);
}

/* --- TEST WORKSPACE LAYOUT --- */
.test-workspace {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2rem;
    align-items: stretch;
}

.arena-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: all var(--transition-normal);
}

.arena-card:hover {
    border-color: rgba(var(--accent-rgb), 0.15);
}

/* --- CLICKING ARENA (THE PAD) --- */
.click-pad {
    flex-grow: 1;
    min-height: 280px;
    background: rgba(255, 255, 255, 0.015);
    border: 2px dashed rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    outline: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.click-pad:hover {
    background: rgba(var(--accent-rgb), 0.02);
    border-color: rgba(var(--accent-rgb), 0.25);
    box-shadow: inset 0 0 20px rgba(var(--accent-rgb), 0.03);
}

.click-pad:focus-visible {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--glow-color);
}

.click-pad:active {
    transform: scale(0.985);
}

.click-pad.active {
    border-style: solid;
    border-color: var(--accent-color);
    background: rgba(var(--accent-rgb), 0.03);
    box-shadow: inset 0 0 30px rgba(var(--accent-rgb), 0.05), 0 0 20px var(--glow-color);
}

.click-pad.spacebar-active {
    border-color: var(--accent-secondary);
    background: rgba(155, 81, 224, 0.06);
    box-shadow: inset 0 0 35px rgba(155, 81, 224, 0.1), 0 0 20px rgba(155, 81, 224, 0.2);
}

.click-pad-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    pointer-events: none; /* Let events fall to pad container */
    user-select: none;
    z-index: 2;
}

/* Circular Timer Ring */
.progress-ring-container {
    position: relative;
    width: 180px;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-ring {
    transform: rotate(-90deg);
    position: absolute;
    top: 0;
    left: 0;
}

.progress-ring-circle {
    transition: stroke-dashoffset 0.05s linear;
}

.timer-display {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: -1px;
}

.click-instruction {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.click-instruction .primary {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    color: var(--text-color);
}

.click-instruction .secondary {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Click Visual Effects (Ripples & Particles) */
.click-ripple {
    position: absolute;
    width: 25px;
    height: 25px;
    background: rgba(var(--accent-rgb), 0.35);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    animation: ripple 0.5s cubic-bezier(0.1, 0.8, 0.3, 1) forwards;
    pointer-events: none;
    z-index: 1;
}

.spacebar-active .click-ripple {
    background: rgba(155, 81, 224, 0.45);
}

@keyframes ripple {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(3.5); opacity: 0; }
}

.floating-click-num {
    position: absolute;
    color: var(--accent-color);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.3rem;
    pointer-events: none;
    user-select: none;
    z-index: 3;
    animation: floatUp 0.6s cubic-bezier(0.1, 0.8, 0.3, 1) forwards;
    text-shadow: 0 0 5px rgba(var(--accent-rgb), 0.6);
}

.spacebar-active .floating-click-num {
    color: #ff007f;
    text-shadow: 0 0 5px rgba(255, 0, 127, 0.6);
}

@keyframes floatUp {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 1; }
    100% { transform: translate(-50%, -150%) scale(1.3); opacity: 0; }
}

/* Live Stats cards */
.live-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.live-stat-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    transition: all var(--transition-fast);
}

.live-stat-card:hover {
    background: rgba(255, 255, 255, 0.04);
}

.live-stat-card .stat-label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    color: var(--text-secondary);
}

.live-stat-card .stat-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-color);
}

/* --- CHART CARD --- */
.chart-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    box-shadow: 0 10px 30px var(--shadow-color);
    height: 100%;
}

.chart-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.chart-container {
    position: relative;
    flex-grow: 1;
    width: 100%;
    min-height: 250px;
    max-height: 320px;
}

/* --- STATS DASHBOARD & RECORDS --- */
.stats-dashboard {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 2rem;
}

.dashboard-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.8rem;
    box-shadow: 0 8px 25px var(--shadow-color);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.dashboard-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
}

.dashboard-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.clear-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 0.35rem 0.7rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.clear-btn:hover {
    color: #ff3860;
    border-color: #ff3860;
    background: rgba(255, 56, 96, 0.05);
}

/* History Table */
.table-container {
    overflow-x: auto;
    flex-grow: 1;
}

#history-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.85rem;
}

#history-table th {
    padding: 0.6rem 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    font-family: var(--font-heading);
}

#history-table td {
    padding: 0.7rem 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-color);
}

#history-table tbody tr:last-child td {
    border-bottom: none;
}

#history-table td.no-data {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem 0;
}

.rank-text-badge {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* Dynamic styling for table modes */
.mode-label {
    text-transform: capitalize;
    font-weight: 600;
}

/* All-time records grid */
.records-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
    flex-grow: 1;
}

.record-box {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.record-box:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(var(--accent-rgb), 0.15);
}

.record-box-left {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.record-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.record-subtitle {
    font-size: 0.6rem;
    color: var(--text-secondary);
}

.record-val {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* --- EDUCATIONAL SECTION --- */
.info-section {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-top: 1rem;
}

.info-section h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: all var(--transition-normal);
}

.info-card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--accent-rgb), 0.2);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.info-card .card-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 5px var(--glow-color));
}

.info-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
}

.info-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- RESULTS MODAL --- */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 5, 8, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    z-index: 100;
    transition: opacity var(--transition-normal);
}

.modal-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    width: 90%;
    max-width: 480px;
    padding: 2.5rem;
    position: relative;
    box-shadow: 0 25px 60px rgba(0,0,0,0.6), 0 0 40px var(--glow-color);
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-backdrop.show .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 1.2rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-color);
}

.result-header {
    text-align: center;
}

.result-header h2 {
    font-family: var(--font-heading);
    font-size: 1rem;
    letter-spacing: 2px;
    color: var(--text-secondary);
    font-weight: 700;
}

.result-main-stats {
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.2rem;
}

/* Stat circle for results modal */
.stat-circle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 110px;
    height: 110px;
    border-radius: 50%;
    border: 3px solid var(--accent-color);
    background: rgba(var(--accent-rgb), 0.03);
    box-shadow: 0 0 25px var(--glow-color);
}

.stat-circle .label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.stat-circle .value {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-color);
}

/* Rank container */
.rank-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}

.rank-badge {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 0 10px rgba(var(--accent-rgb), 0.3));
}

.rank-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    color: var(--accent-color);
    text-shadow: 0 0 8px var(--glow-color);
}

/* Results grid list */
.result-breakdown {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
}

.breakdown-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.8rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.breakdown-item .label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.breakdown-item .value {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
}

.result-comment {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
    padding: 0 0.5rem;
}

/* Pulsing High Score badge */
.result-highscore-badge {
    text-align: center;
    background: linear-gradient(90deg, #ffe600, #ffb300);
    color: #06070a;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.95rem;
    padding: 0.6rem;
    border-radius: 12px;
    letter-spacing: 0.5px;
    animation: pulseGlow 1.5s infinite alternate ease-in-out;
    display: none; /* Managed by JS */
}

@keyframes pulseGlow {
    0% { transform: scale(1); box-shadow: 0 0 10px rgba(255, 230, 0, 0.3); }
    100% { transform: scale(1.03); box-shadow: 0 0 25px rgba(255, 230, 0, 0.6); }
}

.modal-footer {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 1rem;
}

.btn {
    padding: 0.85rem 1.2rem;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-fast);
    outline: none;
    border: none;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-secondary);
}

.btn-primary {
    background: var(--accent-color);
    color: #06070a;
    box-shadow: 0 5px 15px var(--glow-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow-color);
    opacity: 0.95;
}

.btn-primary:active {
    transform: translateY(0);
}

/* --- CONFETTI CANVAS --- */
.confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 99;
}

/* --- RESPONSIVE MEDIA QUERIES --- */
@media (max-width: 1200px) {
    .test-workspace {
        grid-template-columns: 1fr;
    }
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .app-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        height: auto;
        position: relative;
        padding: 1.5rem;
        gap: 1.5rem;
    }
    
    .time-grid {
        grid-template-columns: repeat(8, 1fr);
    }
    
    .main-content {
        padding: 1.5rem;
    }
    
    .stats-dashboard {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .time-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .main-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .high-score-badge {
        align-items: flex-start;
        width: 100%;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        padding: 1.5rem;
    }
    
    .result-main-stats {
        flex-direction: column;
        gap: 1.2rem;
        padding: 1rem;
    }
}