@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Playfair+Display:wght@500;700&display=swap');

:root {
    --background: #f5f7fb;
    --surface: #ffffff;
    --navy: #101828;
    --navy-soft: #1d2b4b;
    --blue: #2563eb;
    --blue-light: #60a5fa;
    --aqua: #38bdf8;
    --text-muted: #5b6576;
    --border: rgba(16, 24, 40, 0.08);
    --shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
    --container-width: min(1120px, 90vw);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--navy);
    background: var(--background);
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover,
a:focus-visible {
    color: var(--blue);
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: var(--container-width);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(14px);
    background: rgba(245, 247, 251, 0.92);
    border-bottom: 1px solid var(--border);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 1.5rem;
}

.branding {
    display: grid;
    gap: 0.25rem;
}

.logo {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.tagline {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.site-nav {
    display: flex;
    gap: 1.5rem;
    font-weight: 500;
}

.site-nav a {
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    border-color: var(--blue);
}

.hero {
    position: relative;
    background: linear-gradient(135deg, #0f172a, #1e293b 55%, #2563eb 120%);
    color: #fff;
    padding: 6rem 0 5rem;
    overflow: hidden;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    filter: blur(0);
    opacity: 0.55;
    z-index: 0;
}

.hero::before {
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.6), transparent 65%);
    top: -140px;
    left: -120px;
    animation: heroGlow 14s ease-in-out infinite alternate;
}

.hero::after {
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.6), transparent 60%);
    bottom: -200px;
    right: -120px;
    animation: heroGlowAlt 18s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    from {
        transform: translate3d(0, 0, 0) scale(1);
        opacity: 0.55;
    }
    to {
        transform: translate3d(60px, 40px, 0) scale(1.15);
        opacity: 0.75;
    }
}

@keyframes heroGlowAlt {
    from {
        transform: translate3d(0, 0, 0) scale(1);
        opacity: 0.55;
    }
    to {
        transform: translate3d(-50px, -40px, 0) scale(1.1);
        opacity: 0.8;
    }
}

.hero .container {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-copy {
    display: grid;
    gap: 1.5rem;
}

.eyebrow {
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.75);
}

.hero h1 {
    margin: 0;
    font-size: clamp(2.8rem, 3.8vw + 1rem, 4rem);
    font-family: 'Playfair Display', Georgia, serif;
    line-height: 1.1;
}

.hero p {
    margin: 0;
    color: rgba(255, 255, 255, 0.82);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0.85rem 1.8rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border: 1px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border 0.2s ease;
}

.btn.primary {
    background: linear-gradient(135deg, var(--blue), var(--aqua));
    color: #fff;
    box-shadow: 0 12px 25px rgba(37, 99, 235, 0.25);
}

.btn.primary:hover,
.btn.primary:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 32px rgba(37, 99, 235, 0.35);
}

.btn.ghost {
    background: rgba(15, 23, 42, 0.55);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn.ghost:hover,
.btn.ghost:focus-visible {
    background: rgba(15, 23, 42, 0.75);
    border-color: rgba(255, 255, 255, 0.6);
}

.hero-pillars {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.hero-pillars li {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(15, 23, 42, 0.55);
    border-radius: 18px;
    padding: 1rem 1.25rem;
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.hero-pillars strong {
    display: block;
    font-weight: 600;
}

.hero-pillars small {
    color: rgba(226, 232, 240, 0.8);
    font-size: 0.9rem;
}

.pillars-icon {
    font-size: 1.4rem;
    display: grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.35);
}

.hero-pillars li:hover,
.hero-pillars li:focus-within {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.55);
    box-shadow: 0 18px 30px rgba(15, 23, 42, 0.35);
}

.hero-card {
    background: rgba(15, 23, 42, 0.35);
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: 24px;
    padding: 2.2rem;
    backdrop-filter: blur(12px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
    display: grid;
    gap: 1rem;
}

.hero-card h2 {
    margin: 0;
    font-family: 'Playfair Display', Georgia, serif;
}

.hero-card ul {
    margin: 0;
    padding-left: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    display: grid;
    gap: 0.5rem;
}

section {
    padding: 5rem 0;
}

section .container > h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 2.6vw + 1rem, 3rem);
    margin-top: 0;
    margin-bottom: 1.25rem;
}

section .container > p.intro {
    max-width: 56ch;
    margin-bottom: 3rem;
    color: var(--text-muted);
}

.promise .values-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.promise article {
    background: var(--surface);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: 0 15px 40px rgba(15, 23, 42, 0.08);
}

.promise article h3 {
    margin-top: 0;
    font-size: 1.2rem;
}

.promise article p {
    margin: 0;
    color: var(--text-muted);
}

.features {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(15, 23, 42, 0.04));
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.75rem;
}

.feature-grid article {
    background: var(--surface);
    border-radius: 18px;
    padding: 2rem;
    border: 1px solid var(--border);
    display: grid;
    gap: 1rem;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

.feature-grid .icon {
    font-size: 1.75rem;
}

.feature-grid p {
    margin: 0;
    color: var(--text-muted);
}

.impact {
    background: #0f172a;
    color: #f8fafc;
}

.impact .container {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 2.5rem;
    align-items: stretch;
}

.impact-card {
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.32), rgba(56, 189, 248, 0.22));
    padding: 3rem;
    border-radius: 28px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    box-shadow: 0 24px 45px rgba(8, 47, 73, 0.35);
    position: relative;
    overflow: hidden;
}

.impact-card::after {
    content: "";
    position: absolute;
    inset: 18px;
    border-radius: 22px;
    border: 1px solid rgba(226, 232, 240, 0.18);
    pointer-events: none;
}

.impact-card h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2.2rem, 2.4vw + 1rem, 3.2rem);
    margin-top: 0;
}

.impact-card p {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.7;
}

.impact-highlights {
    display: grid;
    gap: 1.5rem;
}

.impact-highlights article {
    background: rgba(15, 23, 42, 0.5);
    border-radius: 20px;
    padding: 1.75rem;
    border: 1px solid rgba(148, 163, 184, 0.24);
    display: grid;
    gap: 0.65rem;
    box-shadow: 0 18px 38px rgba(8, 47, 73, 0.28);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.impact-highlights h3 {
    margin: 0;
    font-size: 1.3rem;
}

.impact-highlights p {
    margin: 0;
    color: rgba(226, 232, 240, 0.85);
}

.impact-highlights article:hover,
.impact-highlights article:focus-within {
    transform: translateY(-6px);
    border-color: rgba(226, 232, 240, 0.45);
    box-shadow: 0 25px 45px rgba(8, 47, 73, 0.4);
}

.ribbon {
    position: relative;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(37, 99, 235, 0.85));
    color: #fff;
    padding: 4.5rem 0;
}

.ribbon::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.28), transparent 55%),
        radial-gradient(circle at bottom left, rgba(14, 165, 233, 0.25), transparent 60%);
    opacity: 0.9;
}

.ribbon .container {
    position: relative;
    z-index: 1;
}

.ribbon-content {
    max-width: 720px;
    display: grid;
    gap: 1rem;
}

.ribbon-content h2 {
    margin: 0;
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2.2rem, 3vw + 1rem, 3.4rem);
}

.ribbon-content p {
    margin: 0;
    color: rgba(226, 232, 240, 0.85);
    font-size: 1.05rem;
}

.ribbon-kicker {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(148, 197, 255, 0.9);
}

.signup {
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.12), transparent 40%),
        radial-gradient(circle at bottom left, rgba(56, 189, 248, 0.12), transparent 45%);
}

.signup-card {
    background: var(--surface);
    border-radius: 28px;
    padding: clamp(2rem, 4vw, 3rem);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: grid;
    gap: 2rem;
}

.signup-card .card-intro h2 {
    margin: 0;
    font-size: clamp(2rem, 1.5vw + 1.5rem, 2.6rem);
}

.signup-card .card-intro p {
    margin: 0.75rem 0 0;
    color: var(--text-muted);
    max-width: 50ch;
}

.signup form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.field-group {
    display: grid;
    gap: 0.5rem;
}

.field-group.full {
    grid-column: 1 / -1;
}

label {
    font-weight: 600;
    color: var(--navy);
}

input,
textarea {
    width: 100%;
    border-radius: 14px;
    border: 1px solid var(--border);
    padding: 0.85rem 1rem;
    font: inherit;
    background: #f9fafc;
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

input:focus-visible,
textarea:focus-visible {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

textarea {
    resize: vertical;
}

.signup button {
    justify-self: start;
    margin-top: 0.5rem;
}

.site-footer {
    background: #0b1220;
    color: #e2e8f0;
    padding: 3rem 0;
}

.site-footer .container {
    display: grid;
    gap: 1.25rem;
}

.footer-branding {
    display: grid;
    gap: 0.35rem;
}

.footer-branding .logo {
    color: #fff;
    font-size: 1.35rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-links a {
    color: rgba(226, 232, 240, 0.85);
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: #fff;
}

.footer-note {
    margin: 0;
    font-size: 0.85rem;
    color: rgba(148, 163, 184, 0.85);
}

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-card {
        order: -1;
    }

    .hero-pillars {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .impact .container {
        grid-template-columns: 1fr;
    }

    .signup form {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-nav {
        flex-wrap: wrap;
        gap: 0.75rem 1.5rem;
    }

    section {
        padding: 4rem 0;
    }

    .hero {
        padding: 5rem 0 4rem;
    }

    .hero-pillars {
        grid-template-columns: 1fr;
    }

    .promise .values-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .signup-card {
        padding: 2rem;
    }
}