html, body {
    overflow-x: hidden;
    max-width: 100%;
}
* {
    box-sizing: border-box;
}

:root {
    --primary: #007AFF;
    --primary-light: #4DA3FF;
    --primary-dark: #0056CC;
}

body {
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

.gradient-bg {
    background: linear-gradient(135deg, #007AFF 0%, #4DA3FF 100%);
}

.gradient-text {
    background: linear-gradient(135deg, #007AFF 0%, #4DA3FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 122, 255, 0.1);
}

.app-screen {
    transition: transform 0.5s ease;
}

.app-screen:hover {
    transform: scale(1.05);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #007AFF;
    transition: width 0.3s ease;
}

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

/* Floating animation */
.float-animation {
    animation: float 6s ease-in-out infinite;
}

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

/* Pulse animation */
.pulse-animation {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Scroll indicator */
.scroll-indicator {
    width: 30px;
    height: 50px;
    border: 2px solid #007AFF;
    border-radius: 15px;
    position: relative;
    margin: 0 auto;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 10px;
    background: #007AFF;
    border-radius: 2px;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(20px);
        opacity: 0;
    }
}

/* Gradient border */
.gradient-border {
    position: relative;
    background: white;
    border-radius: 16px;
}

.gradient-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #007AFF, #4DA3FF, #007AFF);
    border-radius: 18px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gradient-border:hover::before {
    opacity: 1;
}

/* Staggered animation for lists */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #007AFF;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 122, 255, 0.4);
}

/* Loading animation */
.loader {
    width: 48px;
    height: 48px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #007AFF;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Navbar animation */
.navbar {
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Counter animation */
.counter {
    transition: all 0.5s ease;
}