* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Logo Styles */
.logo-container {
    position: fixed !important;
    top: 15px !important;
    left: 15px !important;
    z-index: 1000 !important;
    display: flex !important;
    align-items: center !important;
    pointer-events: none;
}

.main-logo {
    height: 100px !important;
    width: auto !important;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.3)) !important;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    pointer-events: auto;
}

.main-logo:hover {
    transform: scale(1.1) !important;
}

/* Responsive logo adjustments */
@media (max-width: 768px) {
    .logo-container {
        top: 12px !important;
        left: 12px !important;
    }
    
    .main-logo {
        height: 18px !important;
    }
}

@media (max-width: 480px) {
    .logo-container {
        top: 10px !important;
        left: 10px !important;
    }
    
    .main-logo {
        height: 16px !important;
    }
}

body {
    font-family: 'DM Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    background: linear-gradient(135deg, #2C2C2C 0%, #5A5A5A 35%, #7BA3B0 70%, #E8E8E8 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #f8f9fa;
    padding: 20px;
    font-weight: 400;
}

.text-container {
    background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.06) 100%);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 24px;
    padding: 24px 36px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 700px;
    width: 80%;
    min-height: 120px;
    position: relative;
    margin-bottom: 40px;
}

.text-display {
    background: transparent;
    border: none;
    padding: 16px 0;
    font-family: 'DM Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 2;
    min-height: 80px;
    position: relative;
    overflow: hidden;
    color: #ffffff;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.text-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateY(-50%);
    transition: transform 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    white-space: nowrap;
}

.cursor {
    position: absolute;
    top: calc(50% + 0.9rem);
    left: 50%;
    transform: translateX(-50%);
    width: 1em;
    height: 3px;
    background: linear-gradient(90deg, #7BA3B0, #A4C3D2);
    animation: blink 1.2s infinite;
    z-index: 10;
    pointer-events: none;
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(123, 163, 176, 0.6);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.4; }
}

.instruction {
    text-align: center;
    color: rgba(255, 255, 255, 0.75);
    font-size: 1rem;
    font-weight: 400;
    font-style: normal;
    margin-top: 16px;
    letter-spacing: 0.01em;
}

.letter {
    position: relative;
    transition: color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    color: #ffffff;
}

.letter.correct {
    color: rgba(255, 255, 255, 0.45);
}

.letter.current {
    color: #ffffff;
    font-weight: 500;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.letter.struggled {
    color: #FF8A95;
    text-shadow: 0 0 8px rgba(255, 138, 149, 0.4);
}

.letter.was-incorrect {
    color: rgba(255, 138, 149, 0.6);
    text-shadow: 0 0 4px rgba(255, 138, 149, 0.2);
}

.letter.permanently-incorrect {
    color: #FF8A95;
    text-shadow: 0 0 8px rgba(255, 138, 149, 0.4);
}

.letter-accuracy {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    max-width: 900px;
    margin: 0 auto;
}

.keyboard-row {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.keyboard-row.top-row {
    margin-left: 0;
}

.keyboard-row.middle-row {
    margin-left: 20px;
}

.keyboard-row.bottom-row {
    margin-left: 60px;
}

.letter-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #5A5A5A, #2C2C2C);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(10px);
}

.letter-circle.blink {
    animation: letter-blink 0.3s ease-in-out;
}

@keyframes letter-blink {
    0% {
        transform: scale(1);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    }
    50% {
        transform: scale(1.2);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25), 0 0 30px rgba(123, 163, 176, 0.8);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    }
}

.letter-circle .letter-label {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2px;
    letter-spacing: 0.02em;
}

.letter-circle .accuracy-value {
    font-size: 0.625rem;
    font-weight: 500;
    opacity: 0.9;
}

.stats-container {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 60px;
    align-items: flex-end;
    justify-content: center;
}

.wpm-counter {
    font-family: 'DM Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 2.5rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

.wpm-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 400;
    margin-bottom: 4px;
    order: 1;
}

.wpm-value {
    font-size: 3rem;
    color: #7BA3B0;
    display: block;
    font-weight: 300;
    letter-spacing: -0.02em;
    order: 2;
}

.general-accuracy {
    font-family: 'DM Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 2.5rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

.general-accuracy-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 400;
    margin-bottom: 4px;
    order: 1;
}

.general-accuracy-value {
    font-size: 3rem;
    color: #7BA3B0;
    display: block;
    font-weight: 300;
    letter-spacing: -0.02em;
    order: 2;
}

/* Authentication Styles */
.auth-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    transition: transform 0.3s ease-out;
}

.auth-container.stats-open {
    transform: translateX(-470px);
}

.auth-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border: none;
    border-radius: 12px;
    font-family: 'DM Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
}

.login-btn {
    background: linear-gradient(135deg, #4285f4, #34a853);
    color: white;
    box-shadow: 0 4px 12px rgba(66, 133, 244, 0.3);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
}

.logout-btn {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.06) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 16px;
    padding: 8px 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.user-buttons {
    display: flex;
    gap: 8px;
}

.user-buttons .auth-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
}

#userName {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Responsive auth styles */
@media (max-width: 768px) {
    .auth-container {
        top: 15px;
        right: 15px;
        gap: 10px;
    }
    
    .auth-container.stats-open {
        transform: translateX(calc(-100vw + 30px));
    }
    
    .auth-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .user-buttons .auth-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }
    
    .user-info {
        padding: 6px 10px;
    }
    
    .user-avatar {
        width: 28px;
        height: 28px;
    }
    
    #userName {
        font-size: 0.75rem;
        max-width: 100px;
    }
    
    .stats-panel {
        width: calc(100vw - 30px);
        left: 15px;
        right: 15px;
        top: 70px;
        max-height: calc(100vh - 100px);
    }
    
    .stats-overview {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    .stat-item {
        padding: 12px;
    }
    
    .stat-value {
        font-size: 1.3rem;
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .text-container {
        padding: 20px 28px;
        width: 90%;
        margin-bottom: 32px;
        max-width: 600px;
        min-height: 100px;
    }
    
    .stats-container {
        top: -70px;
        gap: 40px;
    }
    
    .wpm-counter {
        font-size: 2rem;
    }
    
    .wpm-value {
        font-size: 2.5rem;
    }
    
    .wpm-label {
        font-size: 0.9rem;
        letter-spacing: 0.12em;
        margin-bottom: 2px;
    }
    
    .general-accuracy {
        font-size: 2rem;
    }
    
    .general-accuracy-label {
        font-size: 0.9rem;
        letter-spacing: 0.12em;
        margin-bottom: 2px;
    }
    
    .general-accuracy-value {
        font-size: 2.5rem;
    }
    
    .text-display {
        font-size: 1.3rem;
        padding: 12px 0;
        min-height: 60px;
    }
    
    .cursor {
        top: calc(50% + 0.7rem);
        left: 50%;
        height: 2px;
    }
    
    .letter-circle {
        width: 40px;
        height: 40px;
        font-size: 0.65rem;
    }
    
    .letter-circle .letter-label {
        font-size: 0.7rem;
    }
    
    .letter-circle .accuracy-value {
        font-size: 0.5rem;
    }
    
    .keyboard-row {
        gap: 6px;
    }
    
    .keyboard-row.middle-row {
        margin-left: 16px;
    }
    
    .keyboard-row.bottom-row {
        margin-left: 48px;
    }
}

.stats-btn {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
}

.stats-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

/* Stats Panel */
.stats-panel {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 450px;
    max-height: 80vh;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.08) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 200;
    overflow: hidden;
    transform: translateX(100%);
    transition: transform 0.3s ease-out;
}

.stats-panel.panel-open {
    transform: translateX(0);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.stats-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-panel-header h3 {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.2rem;
    font-weight: 500;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    transform: translateX(2px);
}

.stats-content {
    padding: 20px 24px;
    max-height: calc(80vh - 80px);
    overflow-y: auto;
    /* Hide scrollbar */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* Internet Explorer 10+ */
}

.stats-content::-webkit-scrollbar {
    display: none; /* Safari and Chrome */
}

.stats-overview {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.stat-item {
    background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.04) 100%);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    font-weight: 400;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    display: block;
    color: #ffffff;
    font-size: 1.5rem;
    font-weight: 600;
    font-family: 'DM Mono', monospace;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.wpm-graph-container {
    margin-top: 24px;
}

.wpm-graph-container h4 {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 16px;
    text-align: center;
}

#wpmChart {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
}