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

:root {
    --primary-color: #2d1b3d;
    --secondary-color: #4a2c5a;
    --accent-color: #9b59b6;
    --text-color: #2d1b3d;
    --text-light: #7d6b8a;
    --bg-color: #ffffff;
    --card-bg: #f8f6fa;
    --border-color: #e8dff0;
    --hover-color: #8e44ad;
    --success-color: #27ae60;
    --shadow: 0 2px 10px rgba(155, 89, 182, 0.1);
    --shadow-hover: 0 4px 20px rgba(155, 89, 182, 0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f5f0fa 0%, #e8dff0 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    cursor: none;
}

/* Custom Cursor */
.cursor {
    width: 10px;
    height: 10px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease-out, width 0.2s ease, height 0.2s ease, border-color 0.2s ease;
    mix-blend-mode: difference;
}

.cursor-follower {
    width: 30px;
    height: 30px;
    border: 1px solid var(--accent-color);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: transform 0.3s cubic-bezier(0.2, 0, 0.2, 1), width 0.3s ease, height 0.3s ease, opacity 0.3s ease;
    opacity: 0.3;
    mix-blend-mode: difference;
}

body:hover .cursor {
    width: 12px;
    height: 12px;
}

body:hover .cursor-follower {
    width: 40px;
    height: 40px;
    opacity: 0.4;
}

/* Hover effects for interactive elements */
a:hover ~ .cursor,
button:hover ~ .cursor,
input:hover ~ .cursor,
.cursor.hover {
    width: 20px;
    height: 20px;
    border-color: var(--hover-color);
    background-color: rgba(155, 89, 182, 0.1);
}

a:hover ~ .cursor-follower,
button:hover ~ .cursor-follower,
input:hover ~ .cursor-follower,
.cursor-follower.hover {
    width: 60px;
    height: 60px;
    opacity: 0.2;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeInDown 0.8s ease-out;
}

.title {
    font-size: 3rem;
    font-weight: 300;
    color: var(--primary-color);
    margin-bottom: 10px;
    letter-spacing: -1px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 300;
}

/* Stats Section */
.stats-section {
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease-out;
}

.stats-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 20px 30px;
    background: var(--bg-color);
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    min-width: 120px;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* Section Styles */
section {
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}

/* Converter Card */
.converter-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.converter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(155, 89, 182, 0.05), transparent);
    transition: left 0.5s ease;
}

.converter-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.converter-card:hover::before {
    left: 100%;
}

/* Input Group */
.input-group,
.output-group {
    margin-bottom: 25px;
}

.input-label,
.output-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.time-input {
    width: 100%;
    padding: 15px 20px;
    font-size: 1.1rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--card-bg);
    color: var(--text-color);
    transition: var(--transition);
    font-family: inherit;
}

.time-input:hover {
    border-color: var(--accent-color);
    background: var(--bg-color);
}

.time-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(155, 89, 182, 0.1);
    background: var(--bg-color);
}

/* Convert Button */
.convert-btn {
    width: 100%;
    padding: 18px 30px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
    position: relative;
    overflow: hidden;
}

.convert-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.convert-btn:hover {
    background: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
}

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

.convert-btn:hover::before {
    width: 300px;
    height: 300px;
}

.arrow-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.convert-btn:hover .arrow-icon {
    transform: translateX(5px);
}

/* Result Display */
.result-display {
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 2px solid var(--border-color);
    font-size: 1.3rem;
    text-align: center;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.result-display.has-result {
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1) 0%, rgba(155, 89, 182, 0.1) 100%);
    border-color: var(--success-color);
    color: var(--primary-color);
    font-weight: 500;
    animation: resultPulse 0.5s ease-out;
}

.result-placeholder {
    color: var(--text-light);
    font-weight: 300;
}

.result-time {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.result-date {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 5px;
}

/* Clocks Container */
.clocks-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 40px;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 16px;
    gap: 20px;
}

.clock-card {
    flex: 1;
    text-align: center;
}

.clock-label {
    font-size: 0.9rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
    font-weight: 600;
}

.clock-display {
    padding: 20px;
    background: var(--bg-color);
    border-radius: 12px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.clock-display.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(155, 89, 182, 0.1);
}

.clock-time {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.clock-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

.time-difference {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.diff-arrow {
    font-size: 2rem;
    color: var(--accent-color);
    animation: pulse 2s ease-in-out infinite;
}

.diff-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-color);
    padding: 8px 15px;
    background: rgba(52, 152, 219, 0.1);
    border-radius: 20px;
}

/* Guide Section */
.guide-section {
    margin-bottom: 60px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(155, 89, 182, 0.3);
}

.step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.step-content p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Education Section */
.education-section {
    margin-bottom: 60px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.info-card {
    padding: 25px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: var(--accent-color);
}

.info-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.info-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Features Section */
.features-section {
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out;
}

.features-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.feature-item {
    padding: 25px;
    background: var(--card-bg);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.feature-item p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Use Cases Section */
.usecases-section {
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out;
}

.usecases-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.usecase-item {
    padding: 25px;
    background: var(--card-bg);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.usecase-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.usecase-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.usecase-item h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.usecase-item p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Examples Section */
.examples-section {
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out;
}

.examples-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.examples-intro {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.examples-table {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.example-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1.5fr;
    gap: 15px;
    padding: 15px 20px;
    border-radius: 10px;
    transition: var(--transition);
}

.header-row {
    background: var(--accent-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.example-row:not(.header-row) {
    background: var(--card-bg);
}

.example-row:not(.header-row):hover {
    background: var(--bg-color);
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.example-col {
    display: flex;
    align-items: center;
}

.time-col {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* Chart Section */
.chart-section {
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease-out;
}

.chart-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.chart-card .section-title {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 700;
    text-align: center;
}

.chart-intro {
    text-align: center;
    color: var(--text-light);
    font-size: 1rem;
    margin-bottom: 30px;
    line-height: 1.7;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.chart-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 30px;
    width: 100%;
}

.chart-column {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    width: 100%;
    min-width: 0;
}

.chart-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    width: 100%;
    box-sizing: border-box;
}

.chart-row:last-child {
    border-bottom: none;
}

.chart-row.header-row {
    background: var(--accent-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.chart-row:not(.header-row) {
    background: var(--card-bg);
}

.chart-row:not(.header-row):hover {
    background: var(--bg-color);
    transform: translateX(3px);
}

.chart-time {
    display: flex;
    align-items: center;
    font-size: 1rem;
    color: var(--text-color);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.chart-row.header-row .chart-time {
    color: white;
}

.chart-row:not(.header-row) .chart-time:first-child {
    font-weight: 600;
    color: var(--primary-color);
}

/* Responsive Chart */
@media (max-width: 900px) {
    .chart-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .chart-card {
        padding: 25px;
    }
    
    .chart-card .section-title {
        font-size: 1.5rem;
    }
    
    .chart-column {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .chart-container {
        gap: 15px;
    }
    
    .chart-row {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding: 10px 15px;
    }
    
    .chart-time {
        font-size: 0.85rem;
    }
    
    .chart-card {
        padding: 20px 15px;
    }
}

/* Cities Section */
.cities-section {
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out;
}

.cities-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.cities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.city-group {
    padding: 25px;
    background: var(--card-bg);
    border-radius: 16px;
    border-top: 4px solid var(--accent-color);
}

.city-zone {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
}

.city-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.city-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--bg-color);
    border-radius: 8px;
    transition: var(--transition);
}

.city-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.city-name {
    font-weight: 600;
    color: var(--primary-color);
}

.city-population {
    font-size: 0.85rem;
    color: var(--text-light);
    background: rgba(52, 152, 219, 0.1);
    padding: 4px 10px;
    border-radius: 12px;
}

/* Tips Section */
.tips-section {
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out;
}

.tips-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.tips-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 30px;
}

.tip-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--card-bg);
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
    transition: var(--transition);
}

.tip-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.tip-number {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.tip-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.tip-content p {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Tooltips */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
    font-size: 0.85rem;
    white-space: nowrap;
    margin-bottom: 5px;
    opacity: 0;
    animation: tooltipFadeIn 0.3s ease-out forwards;
    pointer-events: none;
    z-index: 1000;
}

[data-tooltip]:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--primary-color);
    opacity: 0;
    animation: tooltipFadeIn 0.3s ease-out forwards;
    pointer-events: none;
    z-index: 1000;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes resultPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

@keyframes tooltipFadeIn {
    to {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .title {
        font-size: 2rem;
    }
    
    .converter-card,
    .features-card,
    .usecases-card,
    .examples-card,
    .cities-card,
    .tips-card {
        padding: 25px;
    }
    
    .stats-container {
        gap: 20px;
    }
    
    .stat-item {
        min-width: 100px;
        padding: 15px 20px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .clocks-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .time-difference {
        flex-direction: row;
        transform: rotate(90deg);
    }
    
    .diff-arrow {
        transform: rotate(-90deg);
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .info-grid,
    .features-grid,
    .usecases-grid {
        grid-template-columns: 1fr;
    }
    
    .example-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .header-row {
        display: none;
    }
    
    .example-row:not(.header-row)::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--accent-color);
        margin-bottom: 5px;
    }
    
    .cities-grid {
        grid-template-columns: 1fr;
    }
    
    .tip-item {
        flex-direction: column;
        text-align: center;
    }
    
    .cursor,
    .cursor-follower {
        display: none;
    }
    
    body {
        cursor: auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 20px 15px;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
    
    .clock-time {
        font-size: 1.5rem;
    }
    
    .logo-icon {
        width: 30px;
        height: 30px;
    }
    
    .logo-text {
        font-size: 0.95rem;
    }
    
    .logo-container {
        gap: 8px;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Navigation */
.navbar {
    background: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: var(--transition);
    color: var(--accent-color);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 45px;
    height: 45px;
    transition: var(--transition);
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
    transition: var(--transition);
}

.logo-accent {
    color: var(--accent-color);
    font-weight: 600;
}

.nav-logo:hover {
    color: var(--hover-color);
}

.nav-logo:hover .logo-icon {
    transform: rotate(5deg) scale(1.05);
}

.nav-logo:hover .logo-accent {
    color: var(--hover-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    transition: var(--transition);
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Content Sections (for About and Contact pages) */
.content-section {
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out;
}

.content-card {
    background: var(--bg-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.content-card:hover {
    box-shadow: var(--shadow-hover);
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Detail Items */
.info-detail {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.detail-item {
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.detail-item h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.detail-item p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 10px;
}

.highlight-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-color);
    background: rgba(52, 152, 219, 0.1);
    padding: 10px 15px;
    border-radius: 8px;
    display: inline-block;
}

.detail-list {
    list-style: none;
    padding-left: 0;
    margin-top: 10px;
}

.detail-list li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-light);
}

.detail-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Conversion Info */
.conversion-info {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
    align-items: start;
}

.conversion-box {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.1) 0%, rgba(39, 174, 96, 0.1) 100%);
    border-radius: 16px;
    border: 2px solid var(--accent-color);
}

.conversion-box h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.big-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-color);
    margin: 15px 0;
}

.conversion-examples {
    padding: 20px;
}

.conversion-examples h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.example-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.example-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--card-bg);
    border-radius: 10px;
    transition: var(--transition);
}

.example-item:hover {
    background: var(--bg-color);
    transform: translateX(5px);
}

.example-time {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.example-arrow {
    color: var(--accent-color);
    font-size: 1.5rem;
}

/* Importance Grid */
.importance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.importance-card {
    padding: 25px;
    background: var(--card-bg);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.importance-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.importance-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.importance-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.importance-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* History Content */
.history-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.history-item {
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.history-item h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.history-item p {
    color: var(--text-light);
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    margin: 60px 0 40px;
}

.cta-card {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--hover-color) 100%);
    color: white;
    padding: 50px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-hover);
}

.cta-card h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 300;
}

.cta-card p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: white;
    color: var(--accent-color);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* FAQ Styles */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    border: 2px solid transparent;
}

.faq-item:hover {
    border-color: var(--accent-color);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-color);
}

.faq-question h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin: 0;
    flex: 1;
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    transition: transform 0.3s ease;
    width: 30px;
    text-align: center;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 20px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 20px 20px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

/* Tips Grid */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.tip-card {
    padding: 25px;
    background: var(--card-bg);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.tip-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.tip-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.tip-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.tip-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Troubleshooting */
.troubleshoot-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.troubleshoot-item {
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.troubleshoot-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.troubleshoot-item p {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

/* Contact Section */
.contact-info {
    text-align: center;
}

.contact-intro {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.contact-method {
    padding: 30px;
    background: var(--card-bg);
    border-radius: 16px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.contact-method:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.contact-method h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.contact-method p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.contact-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.contact-link:hover {
    color: var(--hover-color);
    transform: translateX(5px);
}

/* Resources */
.resources-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.resource-item {
    padding: 25px;
    background: var(--card-bg);
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.resource-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.resource-item p {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

.resource-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.resource-link:hover {
    color: var(--hover-color);
    text-decoration: underline;
}

/* Responsive Updates for New Pages */
@media (max-width: 768px) {
    .nav-menu {
        gap: 15px;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
    
    .content-card {
        padding: 25px;
    }
    
    .conversion-info {
        grid-template-columns: 1fr;
    }
    
    .importance-grid,
    .tips-grid,
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .cta-card {
        padding: 30px 20px;
    }
    
    .cta-card h2 {
        font-size: 2rem;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-menu {
        width: 100%;
        justify-content: center;
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
    }
    
    .logo-text {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .big-number {
        font-size: 2rem;
    }
    
    .example-item {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-card h2 {
        font-size: 1.5rem;
    }
    
    .cta-card p {
        font-size: 1rem;
    }
}