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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #0a1f1c 0%, #0d2818 50%, #1a3a2f 100%);
    color: #fff;
    min-height: 100vh;
    line-height: 1.6;
}

/* Language Toggle */
.lang-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 1000;
    transition: all 0.3s ease;
}

.lang-toggle:hover {
    background: rgba(34, 197, 94, 0.3);
    border-color: #22c55e;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(34, 197, 94, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    z-index: 1;
    max-width: 800px;
}

.tagline {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #22c55e, #10b981, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 60px rgba(34, 197, 94, 0.3);
}

.subtitle {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: #0a1f1c;
    background: linear-gradient(135deg, #22c55e, #10b981);
    border: none;
    border-radius: 50px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 30px rgba(34, 197, 94, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 40px rgba(34, 197, 94, 0.6);
}

.hero-visual {
    margin-top: 3rem;
}

.earth-emoji {
    font-size: 8rem;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* Section Base */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

section h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    color: #22c55e;
}

section>p {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 2rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
}

/* What Section */
.what {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    margin: 2rem auto;
}

/* How It Works */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(34, 197, 94, 0.3);
}

.step-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #fff;
}

.step p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

/* Demo Section */
.demo-container {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #1a1a1a, #0d0d0d);
    border-radius: 40px;
    padding: 12px;
    box-shadow:
        0 0 0 3px #333,
        0 20px 60px rgba(0, 0, 0, 0.5),
        inset 0 0 20px rgba(255, 255, 255, 0.05);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #0a1f1c;
    border-radius: 30px;
    overflow: hidden;
}

.placeholder-screen {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: rgba(255, 255, 255, 0.5);
}

.placeholder-screen span {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.placeholder-screen p {
    font-size: 0.9rem;
}

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

/* Join Section */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: rgba(34, 197, 94, 0.2);
    border-color: #22c55e;
    transform: translateY(-2px);
}

.social-link span {
    font-size: 1.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

.footer-tagline {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: rgba(34, 197, 94, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 1.5rem;
    }

    section {
        padding: 3rem 1.5rem;
    }

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

    .social-links {
        flex-direction: column;
        align-items: center;
    }
}