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

:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-dark: #1a202c;
    --text-light: #4a5568;
    --text-muted: #718096;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-mesh: radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.15) 0px, transparent 50%),
                      radial-gradient(at 100% 0%, rgba(118, 75, 162, 0.15) 0px, transparent 50%),
                      radial-gradient(at 100% 100%, rgba(240, 147, 251, 0.15) 0px, transparent 50%),
                      radial-gradient(at 0% 100%, rgba(102, 126, 234, 0.15) 0px, transparent 50%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
    animation: pulse 2s ease-in-out infinite;
}

.logo-icon {
    font-size: 2rem;
    animation: pulse 2s ease-in-out infinite;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.btn-github {
    background: var(--gradient-primary);
    color: white !important;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-github:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-github::after {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary-color);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary-color);
    bottom: -150px;
    right: -150px;
    animation-delay: 5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

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

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.6);
    }
}

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

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: 3.75rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease-out;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.hero-subtitle {
    font-size: 1.375rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    max-width: 600px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.badge {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    padding: 0.625rem 1.25rem;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.badge i {
    font-size: 0.875rem;
}

.badge:nth-child(1) i {
    color: #667eea;
}

.badge:nth-child(2) i {
    color: #f5576c;
}

.badge:nth-child(3) i {
    color: #43e97b;
}

.badge:nth-child(4) i {
    color: #fee140;
}

.badge:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-cta-secondary {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-radius: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    min-width: 200px;
    justify-content: center;
}

.btn-download::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-download span {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.btn-label {
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-platform {
    font-size: 1.125rem;
    font-weight: 700;
}

.btn-android {
    background: linear-gradient(135deg, #3DDC84 0%, #2ABF5E 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(61, 220, 132, 0.4);
}

.btn-android i {
    font-size: 1.5rem;
}

.btn-android:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(61, 220, 132, 0.6);
}

.btn-web {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-web:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    border-radius: 40px;
    padding: 20px;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    animation: float-phone 6s ease-in-out infinite;
    transition: all 0.4s ease;
}

.phone-mockup:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl), 0 0 50px rgba(102, 126, 234, 0.5);
}

@keyframes float-phone {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-placeholder {
    text-align: center;
    color: var(--text-muted);
    font-size: 3rem;
}

.screenshot-placeholder p {
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: linear-gradient(180deg, #ffffff 0%, var(--bg-light) 50%, #ffffff 100%);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-mesh);
    opacity: 0.5;
    pointer-events: none;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    transition: transform 0.4s ease;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.feature-icon i {
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.4s ease;
}

/* Individual icon colors */
.feature-card:nth-child(1) .feature-icon i {
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:nth-child(2) .feature-icon i {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:nth-child(3) .feature-icon i {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:nth-child(4) .feature-icon i {
    background: linear-gradient(135deg, #43e97b, #38f9d7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:nth-child(5) .feature-icon i {
    background: linear-gradient(135deg, #fa709a, #fee140);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:nth-child(6) .feature-icon i {
    background: linear-gradient(135deg, #30cfd0, #330867);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:nth-child(7) .feature-icon i {
    background: linear-gradient(135deg, #a8edea, #fed6e3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:nth-child(8) .feature-icon i {
    background: linear-gradient(135deg, #ff9a9e, #fecfef);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    transition: color 0.3s ease;
}

.feature-card:hover h3 {
    color: var(--primary-color);
}

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

/* Story Section */
.story {
    padding: 6rem 0;
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
    position: relative;
}

.story-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.story-text h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.story-body {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-light);
}

.story-intro {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.story-body p {
    margin-bottom: 1.5rem;
}

.story-list {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.story-list li {
    margin-bottom: 1rem;
    color: var(--text-light);
    line-height: 1.8;
}

.story-closing {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 2rem;
}

.story-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.story-card {
    background: var(--gradient-primary);
    color: white;
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.story-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: white;
}

.story-icon i {
    font-size: 4rem;
}

.story-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* Screenshots Section */
.screenshots {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, #ffffff 100%);
    position: relative;
}

/* Screenshots Slider */
.screenshots-slider-container {
    position: relative;
    margin-top: 3rem;
    display: none; /* Hidden by default, shown on mobile */
}

@media (max-width: 968px) {
    .screenshots-slider-container {
        display: block;
    }
    
    .screenshots-grid {
        display: none; /* Hide grid on mobile */
    }
}

.screenshots-slider {
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 2rem;
    padding: 1rem 0;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

.screenshots-slider::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.screenshot-slide {
    min-width: 100%;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    opacity: 0.5;
    transform: scale(0.9);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.screenshot-slide.active {
    opacity: 1;
    transform: scale(1);
}

.screenshot-slide .slide-content {
    text-align: center;
    padding: 1.5rem 0;
}

.screenshot-slide .slide-content h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.screenshot-slide .slide-content p {
    color: var(--text-light);
    line-height: 1.7;
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    background: white;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.25rem;
}

.slider-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.slider-btn:active {
    transform: scale(0.95);
}

.slider-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}

.slider-dots {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.3);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.slider-dot.active {
    background: var(--primary-color);
    width: 32px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

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

@media (min-width: 969px) {
    .screenshots-grid {
        display: grid;
    }
    
    .screenshots-slider-container {
        display: none;
    }
}

.screenshot-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.screenshot-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.screenshot-placeholder-large {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #f0f4ff 0%, #ffffff 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.screenshot-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder-fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--text-muted);
}

.placeholder-fallback i {
    font-size: 4rem;
}

.placeholder-fallback p {
    font-size: 1rem;
    margin: 0;
}

.screenshot-placeholder-large p {
    font-size: 1rem;
    margin-top: 1rem;
    font-weight: 600;
}

.screenshot-item h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    padding: 1.5rem 1.5rem 0.5rem;
    color: var(--text-dark);
}

.screenshot-item > p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
}

/* Global Solution Section */
.global-solution {
    padding: 6rem 0;
    background: white;
}

.global-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
}

.global-text h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.global-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.global-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.global-feature {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.global-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.global-icon i {
    font-size: 2.5rem;
}

.global-feature:nth-child(1) .global-icon {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

.global-feature:nth-child(1) .global-icon i {
    color: #667eea;
}

.global-feature:nth-child(2) .global-icon {
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1), rgba(0, 242, 254, 0.1));
}

.global-feature:nth-child(2) .global-icon i {
    color: #4facfe;
}

.global-feature:nth-child(3) .global-icon {
    background: linear-gradient(135deg, rgba(250, 112, 154, 0.1), rgba(254, 225, 64, 0.1));
}

.global-feature:nth-child(3) .global-icon i {
    color: #fa709a;
}

.global-feature h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

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

/* Globe Placeholder */
.globe-placeholder {
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.globe-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.2);
}

.globe-placeholder .placeholder-fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--text-muted);
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 20px;
    border: 2px dashed rgba(102, 126, 234, 0.3);
}

.globe-placeholder .placeholder-fallback i {
    font-size: 4rem;
    color: var(--primary-color);
}

.globe-placeholder .placeholder-fallback p {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-light);
}

.language-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.language-badge {
    background: var(--gradient-primary);
    color: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.language-badge:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--bg-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
}

.about-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--bg-light);
}

.creator-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    flex-shrink: 0;
    color: white;
}

.creator-avatar i {
    font-size: 3rem;
}

.about-header h2 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.about-header h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.creator-title {
    font-size: 1.125rem;
    color: var(--primary-color);
    font-weight: 600;
}

.about-body {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-light);
}

.about-body p {
    margin-bottom: 1.5rem;
}

.about-links {
    margin-top: 2rem;
}

.link-github {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.link-github i {
    font-size: 1.25rem;
}

.link-github:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo .logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-section h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Technical Section */
.technical {
    padding: 6rem 0;
    background: linear-gradient(180deg, #ffffff 0%, var(--bg-light) 100%);
    position: relative;
}

.tech-icons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.tech-icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
}

.tech-icon-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
}

.tech-icon {
    width: 64px;
    height: 64px;
    object-fit: contain;
    filter: grayscale(20%);
    transition: all 0.3s ease;
}

.tech-icon-item:hover .tech-icon {
    filter: grayscale(0%);
    transform: scale(1.1);
}

.tech-name {
    font-family: 'Poppins', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
    text-align: center;
}

.screenshot-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    width: 100%;
    height: 100%;
    position: relative;
}

.screenshot-placeholder .placeholder-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
}

.screenshot-placeholder .placeholder-fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--text-muted);
}

.screenshot-placeholder .placeholder-fallback i {
    font-size: 3rem;
}

/* Research Section */
.research {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, #ffffff 100%);
    position: relative;
}

.research-content {
    margin-top: 3rem;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.research-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.research-card:hover::before {
    transform: scaleX(1);
}

.research-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.research-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.research-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    transition: opacity 0.4s ease;
}

.research-card:hover .research-icon {
    transform: scale(1.1) rotate(5deg);
}

.research-card:hover .research-icon::before {
    opacity: 0.2;
}

.research-icon i {
    font-size: 2.5rem;
    position: relative;
    z-index: 1;
}

.research-icon-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.research-icon-1 i {
    color: white;
}

.research-card:nth-child(1)::before {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.research-icon-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.research-icon-2 i {
    color: white;
}

.research-card:nth-child(2)::before {
    background: linear-gradient(135deg, #f093fb, #f5576c);
}

.research-icon-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.research-icon-3 i {
    color: white;
}

.research-card:nth-child(3)::before {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
}

.research-icon-4 {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.research-icon-4 i {
    color: white;
}

.research-card:nth-child(4)::before {
    background: linear-gradient(135deg, #43e97b, #38f9d7);
}

.research-icon-5 {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.research-icon-5 i {
    color: white;
}

.research-card:nth-child(5)::before {
    background: linear-gradient(135deg, #fa709a, #fee140);
}

.research-icon-6 {
    background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
}

.research-icon-6 i {
    color: white;
}

.research-card:nth-child(6)::before {
    background: linear-gradient(135deg, #30cfd0, #330867);
}

.research-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

.research-cta {
    text-align: center;
    padding: 3rem 0;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.research-cta p {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.research-cta .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.research-cta .btn i {
    font-size: 1.125rem;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .story-content,
    .global-content {
        grid-template-columns: 1fr;
    }

    .tech-icons-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .tech-icon-item {
        padding: 1.5rem;
    }

    .tech-icon {
        width: 48px;
        height: 48px;
    }

    .research-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 999;
    }

    .nav-links.active {
        transform: translateX(0);
    }

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

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 5rem 0 2rem;
        min-height: auto;
        display: flex;
        align-items: flex-start;
        justify-content: center;
    }
    
    body {
        overflow-x: hidden;
    }
    
    html {
        scroll-padding-top: 70px;
    }
    
    /* Prevent scroll on page load */
    body {
        position: relative;
    }
    
    /* Fix hero background overflow */
    .hero-background {
        overflow: hidden;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
        width: 100%;
    }

    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
        margin-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
        max-width: 100%;
    }

    .hero-badges {
        justify-content: center;
        margin-bottom: 2rem;
    }

    .badge {
        font-size: 0.75rem;
        padding: 0.5rem 1rem;
    }

    /* Mobile hero layout: text -> image -> buttons */
    .hero-text {
        order: 1;
    }

    .hero-image {
        order: 2;
        margin: 1rem 0;
        width: 100%;
    }

    .hero-cta {
        order: 3;
        width: 100%;
    }

    .phone-mockup {
        width: 200px;
        height: 400px;
        margin: 0 auto;
        max-width: 100%;
    }

    .section-title {
        font-size: 1.75rem;
    }

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

    .container {
        padding: 0 1rem;
        width: 100%;
        max-width: 100%;
    }
    
    section {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
    
    .container {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }

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

    .download-buttons {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
    }

    .btn-download {
        width: 100%;
        padding: 1rem 1.5rem;
    }

    .btn-download i {
        font-size: 1.5rem;
    }

    .hero-cta-secondary {
        flex-direction: column;
        width: 100%;
        gap: 0.75rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 0.875rem 1.5rem;
    }

    .about-header {
        flex-direction: column;
        text-align: center;
    }

    .globe-placeholder {
        height: 300px;
    }

    .globe-placeholder .placeholder-fallback {
        width: 250px;
        height: 250px;
    }

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

    /* Slider mobile styles */
    .screenshots-slider {
        padding: 0.5rem 0;
    }

    .screenshot-slide {
        min-width: 85%;
        margin: 0 2.5%;
    }

    .screenshot-placeholder-large {
        height: 300px;
    }

    .slider-controls {
        margin-top: 1.5rem;
    }

    .slider-btn {
        width: 44px;
        height: 44px;
        font-size: 1.125rem;
    }

    /* Improved mobile UX */
    .feature-card {
        padding: 1.5rem;
        margin: 0;
    }

    .section-header {
        margin-bottom: 2rem;
        padding: 0 1rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }
    
    .features,
    .story,
    .screenshots,
    .global-solution,
    .technical,
    .research,
    .about {
        padding-left: 0;
        padding-right: 0;
    }
    
    .features .container,
    .story .container,
    .screenshots .container,
    .global-solution .container,
    .technical .container,
    .research .container,
    .about .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Touch-friendly spacing */
    .nav-links {
        padding: 1.5rem;
    }

    .nav-links a {
        padding: 0.75rem 0;
        font-size: 1.125rem;
    }
    
    /* Fix spacing issues */
    .features-grid,
    .screenshots-grid,
    .research-grid,
    .tech-icons-grid {
        margin-left: 0;
        margin-right: 0;
        padding-left: 0;
        padding-right: 0;
    }
}

/* Smooth Scroll */
html {
    scroll-padding-top: 80px;
    scroll-behavior: smooth;
}

/* Prevent initial scroll jump */
body {
    overflow-x: hidden;
}