* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: linear-gradient(135deg, #0f2027 0%, #203a43 25%, #2c5364 50%, #f07818 75%, #e94b3c 100%);
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(240, 120, 24, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(42, 82, 152, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(233, 75, 60, 0.1) 0%, transparent 50%);
    animation: backgroundPulse 15s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}
body::after {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 100px,
        rgba(255, 255, 255, 0.03) 100px,
        rgba(255, 255, 255, 0.03) 200px
    );
    animation: gridMove 30s linear infinite;
    pointer-events: none;
    z-index: 0;
}
@keyframes gradientShift {
    0% { background-position: 0 50%; }
    25% { background-position: 50% 75%; }
    50% { background-position: 100% 50%; }
    75% { background-position: 50% 25%; }
    100% { background-position: 0 50%; }
}
@keyframes backgroundPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}
@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}
@keyframes wave {
    0% { transform: translateX(-50%) translateY(0) scaleY(1); }
    50% { transform: translateX(-50%) translateY(-20px) scaleY(1.1); }
    100% { transform: translateX(-50%) translateY(0) scaleY(1); }
}
header {
    background: rgba(255, 255, 255, 0.98);
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.8s ease;
    position: relative;
    z-index: 1;
}
header::before {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 60px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(240, 120, 24, 0.1) 25%,
        rgba(42, 82, 152, 0.1) 50%,
        rgba(240, 120, 24, 0.1) 75%,
        transparent 100%);
    border-radius: 50%;
    filter: blur(20px);
    animation: wave 8s ease-in-out infinite;
}
header h1 {
    font-size: 4rem;
    background: linear-gradient(135deg, #f07818 0%, #e94b3c 50%, #f07818 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-weight: 700;
    animation: float 3s ease-in-out infinite, shimmer 3s ease-in-out infinite;
}
@keyframes shimmer {
    0%, 100% { background-position: 0 center; }
    50% { background-position: 100% center; }
}
header p {
    font-size: 1.4rem;
    color: #2a5298;
    font-weight: 500;
}
main {
    flex: 1;
    max-width: 1100px;
    width: 90%;
    margin: 2.5rem auto;
    animation: fadeInUp 1s ease;
    position: relative;
    z-index: 1;
}
section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}
section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(240, 120, 24, 0.05) 50%,
        transparent 70%
    );
    animation: sectionShine 6s linear infinite;
    pointer-events: none;
}
@keyframes sectionShine {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
section:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
}
.hero {
    text-align: center;
}
h2 {
    color: #1e3c72;
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    position: relative;
    padding: 0 3rem;
    z-index: 1;
}
h2::before,
h2::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40px;
    height: 4px;
    background: linear-gradient(135deg, #f07818 0%, #e94b3c 100%);
    transform: translateY(-50%);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(240, 120, 24, 0.5);
}
h2::before {
    left: 0;
    animation: lineGlow 2s ease-in-out infinite;
}
h2::after {
    right: 0;
    animation: lineGlow 2s ease-in-out infinite 1s;
}
@keyframes lineGlow {
    0%, 100% { box-shadow: 0 0 10px rgba(240, 120, 24, 0.5); }
    50% { box-shadow: 0 0 20px rgba(240, 120, 24, 0.8), 0 0 30px rgba(240, 120, 24, 0.4); }
}
.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    color: #555;
}
p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    text-align: center;
    line-height: 1.8;
}
a {
    color: #f07818;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}
a:hover {
    color: #e94b3c;
}
.download-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background: linear-gradient(135deg, #f07818 0%, #e94b3c 100%);
    color: white;
    padding: 1.5rem 3rem;
    border-radius: 50px;
    font-size: 1.4rem;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.4s ease;
    box-shadow: 0 8px 25px rgba(240, 120, 24, 0.4);
    margin-top: 1.5rem;
    position: relative;
    overflow: hidden;
}
.download-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}
.download-button:hover::before {
    left: 100%;
}
.download-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 35px rgba(240, 120, 24, 0.6);
    color: white;
}
.download-icon {
    font-size: 1.6rem;
    animation: pulse 2s ease-in-out infinite;
}
.features {
    padding: 3rem;
}
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.feature-card {
    background: linear-gradient(145deg, #ffffff, #f5f5f5);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.4s ease;
    border: 2px solid transparent;
    cursor: pointer;
}
.feature-card:hover {
    transform: translateY(-10px) scale(1.03);
    border-color: #f07818;
    box-shadow: 0 10px 30px rgba(240, 120, 24, 0.3);
}
.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    filter: grayscale(100%);
    transition: filter 0.4s ease, transform 0.4s ease;
}
.feature-card:hover .feature-icon {
    filter: grayscale(0%);
    transform: scale(1.2) rotate(5deg);
}
.feature-card h3 {
    color: #1e3c72;
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}
.feature-card p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}
.tech-stack {
    text-align: center;
}
.tech-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}
.badge {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 0.8rem 1.8rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(30, 60, 114, 0.3);
    transition: all 0.3s ease;
    cursor: default;
}
.badge:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 25px rgba(30, 60, 114, 0.5);
}
footer {
    background: rgba(255, 255, 255, 0.98);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    margin-top: 2rem;
}
footer p {
    margin: 0;
    color: #2c3e50;
    font-size: 1rem;
}
footer a {
    color: #2a5298;
    font-weight: 600;
}
footer a:hover {
    color: #1e3c72;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2.8rem;
    }
    header p {
        font-size: 1.2rem;
    }
    main {
        margin: 1.5rem auto;
    }
    section {
        padding: 2rem;
        margin-bottom: 1.5rem;
    }
    h2 {
        font-size: 2rem;
        padding: 0 2.5rem;
    }
    h2::before,
    h2::after {
        width: 30px;
        height: 3px;
    }
    .hero-description {
        font-size: 1rem;
    }
    .download-button {
        padding: 1.2rem 2.5rem;
        font-size: 1.2rem;
    }
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .feature-icon {
        font-size: 3rem;
    }
    .tech-badges {
        gap: 0.8rem;
    }
    .badge {
        padding: 0.6rem 1.4rem;
        font-size: 1rem;
    }
}