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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    overflow-x: hidden;
}

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

/* Header */
header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.1"><circle cx="30" cy="30" r="2"/></g></svg>') repeat;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translateY(0px) translateX(0px); }
    33% { transform: translateY(-10px) translateX(5px); }
    66% { transform: translateY(5px) translateX(-5px); }
    100% { transform: translateY(0px) translateX(0px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 120px; /* Add this line for spacing below the fixed header */
    padding-bottom: 40px; /* Optional: add some bottom space */
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s both;
}

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

/* Download Stats */
.download-stats {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.download-count {
    font-size: 3rem;
    font-weight: 700;
    color: #4CAF50;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.download-label {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 0.5rem;
}

/* Download Button */
.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(45deg, #4CAF50, #45a049);
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(76, 175, 80, 0.3);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(76, 175, 80, 0.4);
}

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

/* Features Section */
.features {
    padding: 5rem 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

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

.feature-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: #667eea;
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.steps {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
}

.step {
    text-align: center;
    max-width: 250px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin: 0 auto 1rem;
}

.step h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.step p {
    color: #666;
    line-height: 1.5;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.footer-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 0.8;
}

/* Developer Section */
.developer {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f0f4f8 0%, #e0e7ef 100%);
    color: #222;
}

.developer-container {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.developer-avatar img {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 16px rgba(76, 175, 80, 0.12);
    border: 3px solid #fff;
    background: #eee;
}

.developer h2 {
    font-size: 2.2rem;
    margin-bottom: 1.2rem;
    color: #333;
    font-weight: 700;
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.developer p {
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 1.2rem;
    color: #444;
}

.developer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.portfolio-btn, .linkedin-btn {
    display: inline-block;
    padding: 0.7rem 1.6rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.08);
}

.portfolio-btn {
    background: linear-gradient(45deg, #222, #4CAF50);
    color: #fff;
}

.portfolio-btn:hover {
    background: linear-gradient(45deg, #4CAF50, #222);
}

.linkedin-btn {
    background: #fff;
    color: #0077b5;
    border: 2px solid #0077b5;
}

.linkedin-btn:hover {
    background: #0077b5;
    color: #fff;
}

/* Add to styles.css */
.platform-tabs-container {
    margin: 2rem auto 1rem auto;
    max-width: 480px;
    background: rgba(0,0,0,0.10);
    border-radius: 12px;
    padding: 1.2rem 1rem 1.5rem 1rem;
    box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}
.platform-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}
.tab-btn {
    background: #fff;
    color: #333;
    border: none;
    border-radius: 8px 8px 0 0;
    padding: 0.5rem 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    outline: none;
}
.tab-btn.active {
    background: #4CAF50;
    color: #fff;
}
.tab-content {
    display: none;
    animation: fadeIn 0.5s;
}
.tab-content.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px);}
    to { opacity: 1; transform: translateY(0);}
}

/* Fix for deprecated h1 font-size warning inside section/article/nav/aside */
section h1, article h1, nav h1, aside h1 {
    font-size: 3.5rem; /* or your preferred size */
}

/* Responsive Design */
@media (max-width: 900px) {
    .container {
        padding: 0 10px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .steps {
        flex-direction: column;
        align-items: center;
    }
}

/* Hamburger menu for mobile */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.7rem 0;
    }
    .logo {
        margin-bottom: 0.5rem;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background: rgba(44,62,80,0.95);
        position: absolute;
        top: 60px;
        left: 0;
        z-index: 1001;
        padding: 1rem 0;
        gap: 1.2rem;
    }
    .nav-links.show {
        display: flex;
    }
    .nav-toggle {
        display: block;
        background: none;
        border: none;
        color: #fff;
        font-size: 2rem;
        cursor: pointer;
        margin-left: auto;
    }
}

/* Hide nav-toggle by default */
.nav-toggle {
    display: none;
}

/* --- Responsive Hero Section --- */
@media (max-width: 768px) {
    .hero-content {
        padding-top: 90px;
        padding-bottom: 20px;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .download-btn {
        padding: 12px 18px;
        font-size: 1rem;
    }
    .platform-tabs-container {
        padding: 1rem 0.5rem 1rem 0.5rem;
        max-width: 98vw;
    }
}

/* --- Responsive Platform Tabs --- */
@media (max-width: 500px) {
    .platform-tabs {
        flex-direction: column;
        gap: 0.2rem;
    }
    .tab-btn {
        border-radius: 8px;
        margin-bottom: 2px;
        width: 100%;
    }
}

/* --- Responsive Features Grid --- */
@media (max-width: 600px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .feature-card {
        padding: 1.2rem;
    }
}

/* --- Responsive Steps --- */
@media (max-width: 600px) {
    .steps {
        flex-direction: column;
        gap: 1.2rem;
    }
    .step {
        max-width: 100%;
    }
}

/* --- Responsive Developer Section --- */
@media (max-width: 600px) {
    .developer-container {
        padding: 0 0.5rem;
    }
    .developer h2 {
        font-size: 1.2rem;
    }
}

/* --- Responsive Footer --- */
@media (max-width: 600px) {
    .footer-content {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    .footer-links {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* --- Responsive Images and Video --- */
img, video {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}