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

:root {
    --black: #000;
    --white: #fff;
    --accent: #FFE600;
    --border: 2px solid #fff;
}

body {
    background: var(--black);
    color: var(--white);
    font-family: "Helvetica Neue", Arial, sans-serif;
    min-height: 100svh;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

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

/* ── HEADER ── */

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    border-bottom: var(--border);
}

.logo {
    font-size: 1.1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.btn-nav {
    border: 1px solid var(--white);
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: background 80ms, color 80ms;
}
.btn-nav:hover {
    background: var(--white);
    color: var(--black);
}

/* ── HERO ── */

.hero {
    padding: 5rem 2rem 4rem;
    border-bottom: var(--border);
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.hero-tag {
    font-family: monospace;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    opacity: 0.45;
    text-transform: uppercase;
}

h1 {
    font-size: clamp(3.8rem, 13vw, 10rem);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

.subtitle {
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    line-height: 1.55;
    max-width: 50ch;
    opacity: 0.75;
}

.btn-cta {
    display: inline-block;
    background: var(--accent);
    color: var(--black);
    font-weight: 900;
    font-size: 0.95rem;
    padding: 0.9rem 2rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 2px solid var(--accent);
    transition: background 80ms, color 80ms;
    width: fit-content;
    cursor: pointer;
}
.btn-cta:hover {
    background: var(--black);
    color: var(--accent);
}

/* ── MANIFESTO ── */

.manifesto {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-bottom: var(--border);
}

.manifesto-item {
    padding: 2.5rem 2rem;
    border-right: var(--border);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.manifesto-item:last-child { border-right: none; }

.manifesto-num {
    font-family: monospace;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    opacity: 0.35;
}

.manifesto-item strong {
    display: block;
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.15;
}

.manifesto-item p {
    font-size: 0.88rem;
    line-height: 1.65;
    opacity: 0.6;
}

/* ── CTA BOTTOM ── */

.cta-bottom {
    padding: 3rem 2rem;
    display: flex;
    align-items: center;
    gap: 3rem;
}

.cta-label {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 1;
}

/* ── FOOTER ── */

footer {
    padding: 1rem 2rem;
    border-top: var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: monospace;
    font-size: 0.72rem;
    opacity: 0.35;
}

/* ── RESPONSIVE ── */

@media (max-width: 700px) {
    header { padding: 1rem 1.25rem; }

    .hero { padding: 3rem 1.25rem 2.5rem; }

    .manifesto {
        grid-template-columns: 1fr;
    }
    .manifesto-item {
        border-right: none;
        border-bottom: var(--border);
        padding: 2rem 1.25rem;
    }
    .manifesto-item:last-child { border-bottom: none; }

    .cta-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
        padding: 2.5rem 1.25rem;
    }

    footer { padding: 1rem 1.25rem; flex-direction: column; gap: 0.25rem; align-items: flex-start; }
}