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

:root {
    --primary: hsl(198, 70%, 48%);
    --primary-foreground: hsl(0, 0%, 98%);
    --background: hsl(0, 0%, 7%);
    --foreground: hsl(0, 0%, 98%);
    --card: hsl(0, 0%, 9%);
    --card-border: hsl(0, 0%, 12%);
    --muted-foreground: hsl(0, 0%, 65%);
    --border: hsl(0, 0%, 16%);
    --input: hsl(0, 0%, 28%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--background);
    color: var(--foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    background-color: rgba(18, 18, 18, 0.8);
    border-bottom: 1px solid var(--border);
}

.header-content {
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 500;
    font-family: 'Montserrat';
}

.nav {
    display: none;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

.nav-link {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    text-decoration: none;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--foreground);
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--primary-foreground);
}

.btn-primary:hover {
    filter: brightness(1.1);
}

.btn-outline {
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    color: var(--foreground);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.btn-lg {
    height: 3.5rem;
    padding: 0 2rem;
    font-size: 1rem;
}

.btn-submit {
    width: 100%;
}

@media (min-width: 640px) {
    .btn-submit {
        width: auto;
    }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 4rem;

}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, hsl(189, 94%, 43%) 0%, hsl(174, 72%, 56%) 25%, hsl(199, 89%, 48%) 50%, hsl(184, 77%, 52%) 75%, hsl(189, 94%, 43%) 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-noise {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.15'/%3E%3C/svg%3E");
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(18, 18, 18, 0.4), rgba(18, 18, 18, 0.6), rgba(18, 18, 18, 1));
}

.hero-content {
    position: relative;
    z-index: 10;
    padding: 8rem 1.5rem;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 9999px;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

.gradient-text-white {
    background: linear-gradient(to right, white, rgb(165, 243, 252), white);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-cyan {
    background: linear-gradient(to right, rgb(34, 211, 238), rgb(94, 234, 212), rgb(34, 211, 238));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    max-width: 42rem;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

.trust-indicator {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

/* Features Section */
.features {
    padding: 6rem 0;
}

@media (min-width: 768px) {
    .features {
        padding: 8rem 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.25rem;
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: 3rem;
    }
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    max-width: 42rem;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background-color: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 0.375rem;
    padding: 2rem;
    transition: all 0.2s;
}

.feature-card:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    background-color: rgba(34, 211, 238, 0.1);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.feature-icon svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--muted-foreground);
    line-height: 1.7;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background-color: rgba(23, 23, 23, 0.5);
}

@media (min-width: 768px) {
    .contact {
        padding: 8rem 0;
    }
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 3fr 2fr;
        gap: 4rem;
    }
}

.contact-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .contact-title {
        font-size: 2.25rem;
    }
}

@media (min-width: 1024px) {
    .contact-title {
        font-size: 3rem;
    }
}

.contact-subtitle {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 28rem;
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .waitlist-form {
        flex-direction: row;
    }
}

.form-group {
    flex: 1;
}

.form-input {
    width: 100%;
    height: 3.5rem;
    padding: 0 1rem;
    background-color: var(--card);
    border: 1px solid var(--input);
    border-radius: 0.5rem;
    color: var(--foreground);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
}

.form-input::placeholder {
    color: var(--muted-foreground);
}

.error-message {
    color: hsl(0, 84%, 60%);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    min-height: 1.25rem;
}

.success-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    border-radius: 0.5rem;
    background-color: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.2);
    max-width: 28rem;
}

.success-icon {
    width: 4rem;
    height: 4rem;
    color: var(--primary);
}

.success-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.success-text {
    color: var(--muted-foreground);
    text-align: center;
}

.privacy-note {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.contact-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
}

.benefits-title,
.timeline-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.benefits-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.benefit-item svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--primary);
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.benefit-item span {
    color: var(--muted-foreground);
}

.timeline-text {
    color: var(--muted-foreground);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    background-color: var(--background);
}

.footer-content {
    padding: 3rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--primary);
}

.footer-brand {
    font-size: 0.875rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--foreground);
}

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

.social-link {
    color: var(--muted-foreground);
    transition: color 0.2s;
}

.social-link:hover {
    color: var(--foreground);
}

.social-link svg {
    width: 1.25rem;
    height: 1.25rem;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

/* Loading state */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}