:root {
    --color-ink: #1a1a1a;
    --color-ink-soft: #4a4a4a;
    --color-ink-muted: #767676;
    --color-paper: #faf9f7;
    --color-paper-warm: #f5f3ef;
    --color-accent: #2d5a4a;
    --color-accent-light: #e8f0ec;
    --color-rule: #d4d0c8;

    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 3rem;
    --space-xl: 5rem;
    --space-2xl: 8rem;
}

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

html {
    font-size: 18px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--color-paper);
    color: var(--color-ink);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Layout */
.container {
    max-width: 680px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container--wide {
    max-width: 960px;
}

/* Header */
header {
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-rule);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-ink);
    text-decoration: none;
    letter-spacing: -0.02em;
}

/* Footer */
footer {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-rule);
    text-align: center;
}

footer p {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
}

footer a {
    color: var(--color-ink-muted);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Hero */
.hero {
    padding: var(--space-2xl) 0 var(--space-xl);
    text-align: center;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 6vw, 3.2rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--color-ink);
    margin-bottom: var(--space-md);
    animation: fadeUp 0.8s ease-out both;
}

.hero .subheadline {
    font-size: 1.25rem;
    color: var(--color-ink-soft);
    font-weight: 400;
    animation: fadeUp 0.8s ease-out 0.1s both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Divider */
.divider {
    width: 40px;
    height: 1px;
    background: var(--color-rule);
    margin: var(--space-xl) auto;
}

/* Prose */
.prose {
    animation: fadeUp 0.8s ease-out 0.2s both;
}

.prose p {
    margin-bottom: var(--space-md);
    color: var(--color-ink-soft);
}

.prose p:last-child {
    margin-bottom: 0;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-ink-muted);
    margin-bottom: var(--space-sm);
}

/* Capabilities */
.capabilities {
    background: var(--color-paper-warm);
    padding: var(--space-xl) 0;
    margin: var(--space-xl) 0;
    border-top: 1px solid var(--color-rule);
    border-bottom: 1px solid var(--color-rule);
}

.capabilities-grid {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .capabilities-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }
}

.capability {
    animation: fadeUp 0.8s ease-out both;
}

.capability:nth-child(1) { animation-delay: 0.3s; }
.capability:nth-child(2) { animation-delay: 0.4s; }
.capability:nth-child(3) { animation-delay: 0.5s; }

.capability-number {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
    font-style: italic;
}

.capability p {
    color: var(--color-ink-soft);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: var(--space-lg) 0 var(--space-2xl);
}

.closing-line {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-ink);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

/* Form */
.waitlist-form {
    max-width: 420px;
    margin: 0 auto;
    padding: var(--space-md);
    background: var(--color-paper-warm);
    border: 1px solid var(--color-rule);
    border-radius: 8px;
    animation: fadeUp 0.8s ease-out 0.6s both;
}

.form-group {
    margin-bottom: var(--space-sm);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin-bottom: var(--space-xs);
    text-align: left;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-rule);
    border-radius: 4px;
    background: var(--color-paper);
    color: var(--color-ink);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-ink-muted);
}

.btn {
    display: inline-block;
    width: 100%;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: var(--color-accent);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.15s ease;
}

.btn:hover {
    background: #234a3c;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(45, 90, 74, 0.3);
}

.btn:active {
    transform: scale(0.98);
}

.form-note {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin-top: var(--space-sm);
}

.form-note a {
    color: var(--color-ink-muted);
    text-decoration: underline;
}

.form-note a:hover {
    color: var(--color-ink-soft);
}

/* Form success state */
.form-success {
    display: none;
    padding: var(--space-md);
    background: var(--color-accent-light);
    border-radius: 4px;
    color: var(--color-accent);
    text-align: center;
}

.form-success.visible {
    display: block;
}

.waitlist-form.submitted form {
    display: none;
}

.waitlist-form.submitted .form-success {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Content pages (privacy, etc.) */
.content-page {
    padding: var(--space-xl) 0 var(--space-2xl);
}

.content-page h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-xs);
}

.content-page .last-updated {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin-bottom: var(--space-xl);
}

.content-page h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.content-page p {
    color: var(--color-ink-soft);
    margin-bottom: var(--space-sm);
}

.content-page ul {
    color: var(--color-ink-soft);
    margin-bottom: var(--space-sm);
    padding-left: var(--space-md);
}

.content-page li {
    margin-bottom: var(--space-xs);
}

.content-page strong {
    color: var(--color-ink);
    font-weight: 600;
}

.content-page a {
    color: var(--color-accent);
    text-decoration: none;
}

.content-page a:hover {
    text-decoration: underline;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}