:root {
    --bg: #030712;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text: #e5e7eb;
    --text-muted: #9ca3af;
    --accent: #00BCD4;
    --accent-dark: #0097a7;
    --error: #ef4444;
    --success: #10b981;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.25rem;
}

.hero {
    text-align: center;
    padding: 4rem 0 3rem;
    animation: fadeInUp 0.8s ease-out;
}

.logo {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), #26c6da, #4dd0e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.headline {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #f9fafb;
}

.subtext {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

.benefits {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding: 2rem 0;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: fadeInUp 0.8s ease-out backwards;
}

.card:nth-child(1) { animation-delay: 0.15s; }
.card:nth-child(2) { animation-delay: 0.3s; }
.card:nth-child(3) { animation-delay: 0.45s; }

.card-icon {
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #f9fafb;
}

.card-text {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.signup-section {
    padding: 3rem 0;
    text-align: center;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #f9fafb;
}

#waitlist-form {
    max-width: 440px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    text-align: left;
}

input, select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--card-border);
    border-radius: 10px;
    background: var(--card-bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s ease;
}

input::placeholder {
    color: var(--text-muted);
}

input:focus, select:focus {
    border-color: var(--accent);
}

select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%239ca3af' viewBox='0 0 16 16'%3E%3Cpath d='M4.646 5.646a.5.5 0 0 1 .708 0L8 8.293l2.646-2.647a.5.5 0 0 1 .708.708l-3 3a.5.5 0 0 1-.708 0l-3-3a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

select option {
    background: #1f2937;
    color: var(--text);
}

.error-text {
    font-size: 0.8rem;
    color: var(--error);
    min-height: 1.2rem;
    padding-top: 0.25rem;
}

input.invalid, select.invalid {
    border-color: var(--error);
}

#submit-btn {
    width: 100%;
    padding: 0.9rem;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    color: #fff;
    font-family: var(--font);
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s ease, transform 0.1s ease;
}

#submit-btn:hover {
    opacity: 0.92;
}

#submit-btn:active {
    transform: scale(0.985);
}

#submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-message {
    text-align: center;
    font-size: 1rem;
    min-height: 1.5rem;
    padding-top: 0.5rem;
}

.form-message.success {
    color: var(--success);
}

.form-message.error {
    color: var(--error);
}

.form-message.info {
    color: var(--accent);
}

.footer {
    text-align: center;
    padding: 3rem 0 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    animation: fadeInUp 0.8s ease-out 0.75s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (min-width: 640px) {
    .benefits {
        grid-template-columns: repeat(3, 1fr);
    }

    .headline {
        font-size: 2.75rem;
    }

    .container {
        padding: 2rem 2rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}