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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans Bengali', 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

.logo i {
    font-size: 2rem;
}

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

.nav-link {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #2563eb;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero-text {
    color: white;
}

.app-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(45deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: #2563eb;
    color: white;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #fbbf24;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Phone Mockup */
.hero-phone {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: #1f2937;
    border-radius: 30px;
    padding: 20px;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
}

.app-preview {
    padding: 2rem 1.5rem;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.app-header {
    text-align: center;
    margin-bottom: 3rem;
}

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.app-subtitle {
    opacity: 0.8;
    font-size: 0.9rem;
}

.app-menu {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.menu-item i {
    font-size: 1.2rem;
    width: 20px;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: #f8fafc;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.feature-description {
    color: #64748b;
    line-height: 1.6;
}

/* Download Section */
.download {
    padding: 6rem 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.download-description {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.download-info {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.info-item i {
    color: #10b981;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 15px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(16, 185, 129, 0.4);
}

.btn-icon {
    font-size: 2rem;
}

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-action {
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-platform {
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-note {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 1rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 10px;
    border-left: 4px solid #3b82f6;
}

.download-note i {
    color: #3b82f6;
    margin-top: 0.2rem;
}

.download-note p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin: 0;
}

/* Developer Section */
.developer {
    position: relative;
    padding: 6rem 0;
    background: #000;
    color: white;
    overflow: hidden;
}

.developer-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#matrixCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.developer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2;
}

.developer .container {
    position: relative;
    z-index: 3;
}


.developer-title {
        color: #03BFCB;
        text-shadow: 0 0 10px rgba(3, 191, 203, 0.5);
}



.animated-app-dev {
    display: inline-block;
    background: linear-gradient(90deg, #06b6d4 10%, #3b82f6 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    animation: typing 2.2s steps(14, end) 0.3s 1 normal both, blink-caret 0.7s step-end infinite;
    font-family: inherit;
}

@keyframes typing {
    from { width: 0 }
    to { width: 14ch }
}

@keyframes blink-caret {
    0%, 100% { border-right: 2.5px solid #3b82f6; }
    50% { border-right: 2.5px solid transparent; }
}

.developer-subtitle {
    color: #ccc;
}

.developer-content {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    margin-top: 3rem;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}


.developer-card-single {
    display: flex;
    justify-content: center;
    width: 100%;
    max-width: 1200px;
    min-width: 320px;
}

    
.card-container {
    background: linear-gradient(145deg, 
        rgba(15, 23, 42, 0.95), 
        rgba(30, 41, 59, 0.9), 
        rgba(15, 23, 42, 0.95)
    );
    border-radius: 24px;
    box-shadow: 
        0 25px 50px rgba(0,0,0,0.4),
        0 0 0 1px rgba(59, 130, 246, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    padding: 32px;
    width: 100%;
    position: relative;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(59, 130, 246, 0.3);
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 40px;
    align-items: flex-start;
    overflow: visible;
    max-width: 1200px;
    margin: 0 auto;
}

.card-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(600px circle at var(--mouse-x, 0) var(--mouse-y, 0), 
            rgba(59, 130, 246, 0.1), 
            transparent 40%);
    border-radius: 24px;
    opacity: 0;
    transition: opacity 300ms;
    pointer-events: none;
}

.card-container:hover::before {
    opacity: 1;
}

.profile-section {
    text-align: center;
    padding: 24px;
    background: linear-gradient(145deg, 
        rgba(0, 0, 0, 0.4), 
        rgba(30, 41, 59, 0.3)
    );
    border-radius: 16px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    position: relative;
    overflow: hidden;
}

.profile-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(59, 130, 246, 0.8), 
        transparent
    );
}

.services-section {
    padding: 24px;
    position: relative;
}

.services-section h6 {
    font-size: 20px;
    margin-bottom: 24px;
    color: #3b82f6;
    text-align: center;
    font-weight: 600;
    position: relative;
}

.services-section h6::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #3b82f6, transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 24px;
    min-width: 0;
}

.service-card {
    background: linear-gradient(145deg, 
        rgba(30, 41, 59, 0.6), 
        rgba(15, 23, 42, 0.8)
    );
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(59, 130, 246, 0.1), 
        transparent
    );
    transition: left 0.5s;
}

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

.service-card:hover {
    background: linear-gradient(145deg, 
        rgba(59, 130, 246, 0.1), 
        rgba(30, 41, 59, 0.8)
    );
    transform: translateY(-4px);
    box-shadow: 
        0 20px 40px rgba(59, 130, 246, 0.1),
        0 0 0 1px rgba(59, 130, 246, 0.5);
}

.service-card.hidden-service {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.service-card.hidden-service.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.service-card i {
    font-size: 28px;
    color: #3b82f6;
    margin-bottom: 12px;
    display: block;
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.4));
}

.service-card h4 {
    font-size: 15px;
    color: #f1f5f9;
    margin-bottom: 8px;
    font-weight: 600;
}

.service-card p {
    font-size: 13px;
    color: #cbd5e1;
    line-height: 1.5;
    margin: 0;
}

.choose-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 20px;
}

.choose-card {
    background: linear-gradient(145deg, 
        rgba(16, 185, 129, 0.1), 
        rgba(6, 78, 59, 0.2)
    );
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 10px;
    padding: 16px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.choose-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(16, 185, 129, 0.1), 
        transparent
    );
    transition: left 0.5s;
}

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

.choose-card:hover {
    background: linear-gradient(145deg, 
        rgba(16, 185, 129, 0.15), 
        rgba(6, 78, 59, 0.3)
    );
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(16, 185, 129, 0.1);
}

.choose-card i {
    font-size: 22px;
    color: #10b981;
    margin-bottom: 10px;
    display: block;
    filter: drop-shadow(0 0 6px rgba(16, 185, 129, 0.4));
}

.choose-card h5 {
    font-size: 14px;
    color: #f1f5f9;
    margin-bottom: 8px;
    font-weight: 600;
}

.choose-card p {
    font-size: 12px;
    color: #cbd5e1;
    line-height: 1.4;
    margin: 0;
}

.card-container .pro {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: #ffce00;
    color: #000;
    padding: 5px 10px;
    font-weight: bold;
    border-radius: 5px;
    font-size: 12px;
}

.round {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid #03BFCB;
    margin-bottom: 15px;
    object-fit: cover;
    box-shadow: 0 0 20px rgba(3, 191, 203, 0.3);
}

.card-container h3 {
    font-size: 20px;
    margin-bottom: 3px;
    color: #fff;
}

.card-container h6 {
    font-size: 13px;
    color: #ccc;
    margin-bottom: 10px;
}

.card-container p {
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 15px;
    color: #ccc;
}

button.primary {
    background-color: #03BFCB;
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 25px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans Bengali', sans-serif;
}

button.primary i {
    margin-right: 8px;
}

button.primary:hover {
    background-color: #029e9b;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(3, 191, 203, 0.3);
}

.skills {
    margin-top: 20px;
    text-align: left;
}

.skills h6 {
    font-size: 15px;
    margin-bottom: 12px;
    color: #03BFCB;
    text-align: center;
}

.skills ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skills ul li {
    background-color: rgba(45, 42, 78, 0.8);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    border: 1px solid rgba(3, 191, 203, 0.2);
}

.skills ul li.hidden-service {
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.skills ul li.hidden-service.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.services-points {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-height: 500px;
    overflow-y: auto;
    padding-right: 10px;
}

.service-point {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 0.8rem;
    background: rgba(3, 191, 203, 0.1);
    border-radius: 8px;
    border-left: 3px solid #03BFCB;
    transition: all 0.3s ease;
    opacity: 1;
    transform: translateY(0);
    margin-bottom: 0.5rem;
}

.service-point:hover {
    background: rgba(3, 191, 203, 0.15);
    transform: translateX(5px);
}

.service-point.hidden-service {
    display: none;
    opacity: 0;
    transform: translateY(-10px);
}

.service-point.hidden-service.show {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.service-point i {
    color: #03BFCB;
    font-size: 1.5rem;
    margin-top: 0.2rem;
    min-width: 24px;
}

.service-point h4 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: #fff;
}

.service-point p {
    color: #ccc;
    font-size: 0.85rem;
    line-height: 1.4;
    margin: 0;
}

/* Custom scrollbar for services points */
.services-points::-webkit-scrollbar {
    width: 4px;
}

.services-points::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.services-points::-webkit-scrollbar-thumb {
    background: #03BFCB;
    border-radius: 2px;
}

.services-points::-webkit-scrollbar-thumb:hover {
    background: #029e9b;
}

.show-more-btn {
    background: linear-gradient(145deg, 
        rgba(59, 130, 246, 0.1), 
        rgba(59, 130, 246, 0.2)
    );
    border: 1px solid rgba(59, 130, 246, 0.4);
    color: #3b82f6;
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 13px;
    cursor: pointer;
    margin-top: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'Noto Sans Bengali', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.show-more-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(59, 130, 246, 0.3), 
        transparent
    );
    transition: left 0.5s;
}

.show-more-btn:hover::before {
    left: 100%;
}

.show-more-btn:hover {
    background: linear-gradient(145deg, 
        rgba(59, 130, 246, 0.2), 
        rgba(59, 130, 246, 0.3)
    );
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
}

.show-more-btn i {
    transition: transform 0.3s ease;
}

.show-more-btn.expanded i {
    transform: rotate(180deg);
}

.developer-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(3, 191, 203, 0.3);
}

.stat-item {
    text-align: center;
}

.stat-item .stat-number {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #03BFCB;
    margin-bottom: 5px;
}

.stat-item .stat-label {
    font-size: 11px;
    color: #ccc;
}

.developer-info {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.info-card h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: #03BFCB;
    text-align: center;
}

.info-points {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-height: 500px;
    overflow-y: auto;
    padding-right: 10px;
}

.info-point {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: rgba(3, 191, 203, 0.1);
    border-radius: 10px;
    border-left: 4px solid #03BFCB;
    transition: all 0.3s ease;
}

.info-point:hover {
    background: rgba(3, 191, 203, 0.15);
    transform: translateX(5px);
}

/* Custom scrollbar for info points */
.info-points::-webkit-scrollbar {
    width: 4px;
}

.info-points::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.info-points::-webkit-scrollbar-thumb {
    background: #03BFCB;
    border-radius: 2px;
}

.info-points::-webkit-scrollbar-thumb:hover {
    background: #029e9b;
}

.info-point i {
    color: #03BFCB;
    font-size: 1.5rem;
    margin-top: 0.2rem;
}

.info-point h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #fff;
}

.info-point p {
    color: #ccc;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Developer Section Responsive */
@media (max-width: 768px) {
    .download-buttons {
        align-items: center !important;
    }
    .download-btn,
    .download-buttons a[href*="installation-guide"],
    .download-buttons a#showGuideBtn {
        margin: 0 auto !important;
        width: 90vw !important;
        max-width: 220px !important;
        min-width: 0 !important;
        padding: 0.55rem 0.5rem !important;
        font-size: 0.98rem !important;
        border-radius: 8px !important;
        box-sizing: border-box;
    }
    /* Fix phone mockup scroll and menu fit */
    .phone-mockup {
        width: 98vw;
        height: 70vw;
        min-height: 350px;
        max-width: 350px;
        max-height: 600px;
        padding: 7px;
        overflow: hidden;
    }
    .phone-screen {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    .app-preview {
        padding: 0.7rem 0.2rem;
    }
    .app-menu {
        gap: 0.5rem;
    }
    .menu-item {
        font-size: 0.93rem;
        padding: 0.6rem 0.5rem;
        border-radius: 11px;
    }
    .download-btn {
    padding: 0.7rem 0.5rem;
    font-size: 0.98rem;
    max-width: 95vw;
    margin: 0 auto;
    display: block;
    }
    .btn-action {
        font-size: 1rem;
    }
    .btn-platform {
        font-size: 0.85rem;
    }
    .developer-card-single {
        width: 100%;
        max-width: 95%;
    }

    .card-container {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px 15px;
        margin: 0;
        max-width: none;
    }

    .profile-section {
        padding: 15px;
    }

    .services-section {
        padding: 15px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .choose-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .developer-stats {
        flex-direction: row;
        gap: 15px;
        justify-content: space-around;
    }
    
    .info-points {
        gap: 1rem;
    }
    
    .info-point {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .service-point {
        margin-bottom: 0.5rem;
        font-size: 0.9rem;
    }

    .services-section .toggle-section h4 {
        font-size: 1.2rem;
    }

    .show-more-btn {
        font-size: 12px;
        padding: 8px 16px;
    }

    .why-choose-section h3 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }

    .profile-photo {
        width: 120px;
        height: 120px;
    }

    .developer-info h3 {
        font-size: 1.5rem;
    }

    .developer-info p {
        font-size: 0.9rem;
    }
}

/* Footer */
.footer {
    background: #0f172a;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 1rem;
}

.footer-description {
    opacity: 0.8;
    line-height: 1.6;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #e2e8f0;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #2563eb;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #94a3b8;
}

.contact-item i {
    color: #2563eb;
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
        line-height: 1.3;
    }

    .hero-description {
        font-size: 1.1rem;
        padding: 0 10px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        padding: 1.2rem 2rem;
        font-size: 1rem;
    }

    .hero-stats {
        justify-content: center;
        gap: 1.5rem;
        margin-top: 2rem;
    }

    .phone-mockup {
        width: 250px;
        height: 500px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }

    .section-title {
        font-size: 2rem;
        text-align: center;
    }

    .section-subtitle {
        font-size: 1rem;
        padding: 0 10px;
    }

    .download-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .download-title {
        font-size: 2rem;
        line-height: 1.3;
    }

    .download-description {
        font-size: 1rem;
        padding: 0 10px;
    }

    .download-info {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .download-btn {
        width: 100%;
        max-width: 300px;
        padding: 1.5rem 1rem;
        justify-content: center;
    }

    .download-note {
        margin-top: 1rem;
        font-size: 0.85rem;
    }

    /* Developer section mobile */
    .developer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .card-container {
        max-width: 350px;
        margin: 0 auto;
        padding: 25px 20px;
    }
    
    .developer-stats {
        flex-direction: row;
        gap: 1rem;
        justify-content: space-around;
    }
    
    .info-points {
        gap: 1rem;
    }
    
    .info-point {
        padding: 1rem 0.8rem;
        flex-direction: row;
        text-align: left;
        gap: 1rem;
    }

    .info-point i {
        font-size: 1.2rem;
        min-width: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .footer-section {
        padding: 1rem 0;
    }

    /* Video Modal Mobile */
    .video-modal-content {
        margin: 5% auto;
        width: 95%;
        max-width: none;
    }
    
    .video-close {
        top: 10px;
        right: 15px;
        font-size: 28px;
    }
    
    #demo-video {
        max-height: 50vh;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat {
        padding: 0.5rem;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .download-info {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .feature-card {
        padding: 1.5rem 1rem;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .feature-title {
        font-size: 1.1rem;
    }

    .btn {
        padding: 1rem 1.5rem;
        font-size: 0.9rem;
    }

    /* Very small screens */
    .card-container {
        padding: 20px 15px;
        max-width: 320px;
    }

    .round {
        width: 100px;
        height: 100px;
    }

    .card-container h3 {
        font-size: 18px;
    }

    .developer-stats {
        flex-direction: column;
        gap: 0.8rem;
    }

    .stat-item .stat-number {
        font-size: 16px;
    }

    .stat-item .stat-label {
        font-size: 10px;
    }
}

/* Enhanced Desktop Experience */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 4rem;
    }

    .section-title {
        font-size: 3rem;
    }

    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .developer-content {
        gap: 5rem;
    }

    .card-container {
        max-width: 450px;
    }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
    .btn, .download-btn, button.primary {
        min-height: 48px;
        font-size: 1rem;
    }

    .nav-link {
        padding: 1rem;
        font-size: 1.1rem;
    }

    .feature-card {
        padding: 2rem;
    }

    .contact-item {
        padding: 1rem 0;
        font-size: 1rem;
    }
}

/* High DPI screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .round {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Landscape mobile optimization */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: 80vh;
        padding-top: 60px;
    }

    .hero-content {
        gap: 2rem;
    }

    .phone-mockup {
        width: 200px;
        height: 400px;
    }

    .developer {
        padding: 4rem 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .download-info {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card {
    animation: fadeInUp 0.6s ease forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }
.feature-card:nth-child(7) { animation-delay: 0.7s; }
.feature-card:nth-child(8) { animation-delay: 0.8s; }

/* Utility Classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

/* Loading States */
.downloading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.downloading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

/* Improved Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #2563eb;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1d4ed8;
}

/* Focus states for accessibility */
.nav-link:focus,
.btn:focus,
.download-btn:focus,
button.primary:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Smooth transitions for all interactive elements */
* {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

.btn, .download-btn, .nav-link, .feature-card, button.primary {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Improved button states */
.btn:active, .download-btn:active, button.primary:active {
    transform: scale(0.98);
}

/* Better mobile touch feedback */
@media (hover: none) and (pointer: coarse) {
    .feature-card:active {
        transform: translateY(-5px) scale(0.98);
    }
    
    .nav-link:active {
        background: rgba(37, 99, 235, 0.1);
    }
}

/* Video Modal Styles */
.video-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
}

.video-modal-content {
    position: relative;
    margin: 5% auto;
    width: 90%;
    max-width: 900px;
    background: #000;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.video-close {
    position: absolute;
    top: 15px;
    right: 25px;
    color: #fff;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10001;
    transition: color 0.3s ease;
}

.video-close:hover,
.video-close:focus {
    color: #f1c40f;
}

#demo-video {
    width: 100%;
    height: auto;
    max-height: 70vh;
    background: #000;
}

/* Video Modal Responsive */
@media (max-width: 768px) {
    .video-modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .video-close {
        top: 10px;
        right: 15px;
        font-size: 28px;
    }
    
    #demo-video {
        max-height: 60vh;
    }
}