:root {
    --neon-cyan: #00f6ff;
    --dark-bg: #0a0a0f;
    --card-bg: rgba(17, 17, 34, 0.95);
    --text-primary: #f0f4ff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/*scroll bar*/
::-webkit-scrollbar {
    width: 10px;
}

/* Track */
::-webkit-scrollbar-track {
    box-shadow: inset 0 0 2px var(--text-primary);
    border-radius: 6px;
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: var(--neon-cyan);
    border-radius: 6px;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    opacity: .5;
}

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

/*Logo*/
.logo {
    letter-spacing: 3px;
    font-family: Arial, Helvetica, sans-serif;
}

.logo:hover {
    cursor: pointer;
    opacity: .8;
}

.span-a,
.span-b {
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
}

.copyright a {
    text-decoration: none;
}

.logo span:first-child,
.span-a {
    color: var(--neon-cyan);
}

.logo span:last-child,
.span-b {
    color: var(--text-primary);
}
.seo-key{
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}
body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.grid-effect {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 246, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 246, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
    z-index: -1;
}

/* Header Navigation */
.main-header {
    position: sticky;
    top: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(12px);
    padding: 1rem 2rem;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 246, 255, 0.1);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--neon-cyan), #00d4ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 15px rgba(0, 246, 255, 0.3);
}

.logo a {
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-cyan);
    transition: var(--transition);
}

.nav-link:hover::before {
    width: 100%;
}

/* Quote Section */
.quote-section {
    padding: 4rem 2rem;
    background: rgba(0, 246, 255, 0.05);
    border-top: 1px solid rgba(0, 246, 255, 0.1);
    border-bottom: 1px solid rgba(0, 246, 255, 0.1);
    margin-bottom: 2rem;
}

.quote-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.quote-text {
    font-size: 1.4rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    padding: 2rem;
    border-left: 3px solid var(--neon-cyan);
    background: var(--card-bg);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}

.quote-text:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 24px rgba(0, 246, 255, 0.1);
}

.refresh-quote {
    background: none;
    border: none;
    color: var(--neon-cyan);
    cursor: pointer;
    font-size: 1.2rem;
    margin-top: 1rem;
}

/* Footer */
.main-footer {
    margin-top: auto;
    background: rgba(10, 10, 15, 0.95);
    padding: 2rem;
    border-top: 1px solid rgba(0, 246, 255, 0.1);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--neon-cyan);
}

.isDisabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.isDisabled:hover {
    color: #aeaaaa;
    pointer-events: none;
}

/* Mobile Navigation */
#hamburgerBtn {
    display: none;
    background: transparent;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    #hamburgerBtn {
        display: block;
    }
}

/* Add these new styles */
.benefits-section {
    padding: 0rem 2rem 1rem 2rem;
}

.benefits-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(0, 246, 255, 0.2);
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(0, 246, 255, 0.1);
}

.progress-section {
    margin-bottom: 2rem;
    padding: 4rem 2rem;
    background: rgba(0, 246, 255, 0.05);
}

.progress-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.stats-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
}

.progress-bar {
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--neon-cyan);
    width: 0;
    transition: width 1s ease;
}

.graph-container {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    min-height: 300px;
}

.tips-section {
    padding: 4rem 2rem;
}

.tip-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    margin: 1rem 0;
    border-left: 4px solid var(--neon-cyan);
}

/* Progress Section New Features */
.progress-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    padding: 1rem;
}

/* Calendar Styles */
.calendar-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid rgba(0, 246, 255, 0.2);
    margin-bottom: 1.5rem;
}

.calendar-card h3 {
    color: var(--neon-cyan);
    margin-bottom: 1rem;
    text-align: center;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    border-radius: 8px;
    background: rgba(0, 246, 255, 0.05);
    border: 1px solid rgba(0, 246, 255, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.calendar-day:hover {
    background: rgba(0, 246, 255, 0.1);
    transform: translateY(-2px);
}

.calendar-day.today {
    background: rgba(0, 246, 255, 0.2);
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
    font-weight: bold;
    box-shadow: 0 0 10px rgba(0, 246, 255, 0.3);
}

.calendar-day.practiced {
    background: var(--neon-cyan);
    color: var(--dark-bg);
    font-weight: bold;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 15px rgba(0, 246, 255, 0.4);
}

.calendar-day.practiced:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 0 20px rgba(0, 246, 255, 0.5);
}

.streak-info {
    text-align: center;
    color: var(--neon-cyan);
    font-size: 0.9rem;
    margin-top: 1rem;
    padding: 0.5rem;
    background: rgba(0, 246, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(0, 246, 255, 0.2);
}

/* Tips Carousel Styles */
.tips-carousel {
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid rgba(0, 246, 255, 0.2);
    padding: 1.5rem;
    animation: fadeIn 0.5s ease-in;
}

.tips-carousel h3 {
    color: var(--neon-cyan);
    margin-bottom: 1rem;
    text-align: center;
}

.carousel-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.carousel-btn {
    background: rgba(0, 246, 255, 0.1);
    border: 1px solid rgba(0, 246, 255, 0.2);
    color: var(--neon-cyan);
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-btn:hover {
    background: rgba(0, 246, 255, 0.2);
    transform: scale(1.1);
}

.carousel-content {
    flex: 1;
    overflow: hidden;
    position: relative;
    height: 100px;
}

.tip-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease;
}

.tip-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.tip-slide i {
    font-size: 2rem;
    color: var(--neon-cyan);
    margin-bottom: 0.5rem;
}

.tip-slide p {
    color: var(--text-color);
    font-size: 1rem;
    padding: 0 1rem;
}

/* Quick Practice Styles */
.quick-practice {
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid rgba(0, 246, 255, 0.2);
    padding: 1.5rem;
    animation: fadeIn 0.5s ease-in;
}

.quick-practice h3 {
    color: var(--neon-cyan);
    margin-bottom: 1rem;
    text-align: center;
}

.practice-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.practice-text {
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1.1rem;
    line-height: 1.6;
    min-height: 100px;
}

.practice-input {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 246, 255, 0.2);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1.1rem;
}

.practice-input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0, 246, 255, 0.2);
}

.practice-stats {
    display: flex;
    justify-content: space-between;
    color: var(--text-color);
    font-size: 1.1rem;
}

.practice-btn {
    background: var(--neon-cyan);
    color: var(--dark-bg);
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.practice-btn:hover {
    background: #00d4ff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 246, 255, 0.3);
}
 .tips-section1 {
                padding: 2rem;
                background: var(--card-bg);
                border-radius: 16px;
                margin: 2rem auto;
                max-width: 1200px;
            }

            .tips-grid1 {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
                padding: 1rem;
            }

            .tip-card1 {
                background: rgba(0, 246, 255, 0.05);
                border: 1px solid rgba(0, 246, 255, 0.2);
                border-radius: 12px;
                padding: 1.5rem;
                text-decoration: none;
                color: var(--text-color);
                transition: all 0.3s ease;
                position: relative;
                overflow: hidden;
                display: flex;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }

            .tip-card1::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: linear-gradient(45deg, transparent, rgba(0, 246, 255, 0.1), transparent);
                transform: translateX(-100%);
                transition: transform 0.6s ease;
            }

            .tip-card1:hover::before {
                transform: translateX(100%);
            }

            .tip-card1:hover {
                transform: translateY(-5px);
                box-shadow: 0 8px 25px rgba(0, 246, 255, 0.15);
                border-color: var(--neon-cyan);
            }

            .tip-icon1 {
                color: var(--neon-cyan);
                font-size: 1.5rem;
                margin-bottom: 0.5rem;
                transition: transform 0.3s ease;
            }

            .tip-card1:hover .tip-icon1 {
                transform: scale(1.1);
            }

            .tip-card1 h3 {
                color: var(--neon-cyan);
                margin-bottom: 0.5rem;
                font-size: 1.2rem;
            }

            .tip-card1 p {
                font-size: 0.9rem;
                line-height: 1.5;
                opacity: 0.9;
            }

            .last-card {
                grid-column: 1 / -1;
                max-width: 50%;
                margin: 0 auto;
            }

            @media (max-width: 768px) {
                .tips-grid1 {
                    grid-template-columns: 1fr;
                }
                .last-card {
                    max-width: 100%;
                }
            }

            /* Animation for cards */
            .tip-card1 {
                animation: fadeInUp 0.5s ease-out forwards;
                opacity: 0;
            }

            .tip-card1:nth-child(1) { animation-delay: 0.1s; }
            .tip-card1:nth-child(2) { animation-delay: 0.2s; }
            .tip-card1:nth-child(3) { animation-delay: 0.3s; }
            .tip-card1:nth-child(4) { animation-delay: 0.4s; }
            .tip-card1:nth-child(5) { animation-delay: 0.5s; }
            .tip-card1:nth-child(6) { animation-delay: 0.6s; }
            .tip-card1:nth-child(7) { animation-delay: 0.7s; }

            @keyframes fadeInUp {
                from {
                    opacity: 0;
                    transform: translateY(20px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }