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

:root {
    --ink: #001219;
    --teal-dark: #005f73;
    --teal: #0a9396;
    --sage: #94d2bd;
    --bg: #f0f4f8;
}

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

body, html {
    margin: 0;
    padding: 0;
    font-family: 'Source Sans Pro', sans-serif;
    background-color: var(--bg);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
    overflow-x: hidden;
}

/* ── Background canvas ─────────────────────────────────────────── */

#canvas-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* ── Nav ────────────────────────────────────────────────────────── */

nav {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    background-color: rgba(240, 244, 248, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--teal-dark);
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 2px;
    background-color: var(--teal);
}

.nav-link {
    padding: 0.5rem 1.25rem;
    background-color: var(--teal);
    color: var(--bg);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
    transition: background-color 0.3s;
}

.nav-link:hover, .nav-link:focus {
    background-color: var(--teal-dark);
}

@media (max-width: 480px) {
    nav {
        padding: 1rem;
    }

    .logo {
        font-size: 1.5rem;
    }
}

/* ── Hero ───────────────────────────────────────────────────────── */

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 12vh 1.5rem 4rem;
    text-align: center;
    z-index: 10;
    position: relative;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 6vw, 5rem);
    margin: 0.25rem 0;
    color: var(--teal-dark);
    line-height: 1.1;
}

.hero-paragraph {
    max-width: 680px;
    margin-top: 1.5rem;
    color: var(--teal);
    font-size: 1.1rem;
}

@media (max-width: 480px) {
    .hero {
        padding-top: 10vh;
    }
}

/* ── Cards ──────────────────────────────────────────────────────── */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 4rem 4rem;
    z-index: 10;
    position: relative;
}

.card {
    background-color: #fff;
    border: 1px solid #e0e0e0;
    padding: 35px;
    border-radius: 8px;
    text-align: left;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.card-label {
    font-weight: bold;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: var(--teal);
    margin-bottom: 0.5rem;
}

.card-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    color: var(--teal-dark);
    margin: 0.5rem 0;
}

.card p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(0, 18, 25, 0.8);
}

@media (max-width: 600px) {
    .cards {
        padding: 1rem 5%;
    }

    .card {
        padding: 30px 24px;
    }
}

/* ── CTA ────────────────────────────────────────────────────────── */

.cta {
    text-align: center;
    padding: 3rem 1.5rem 5rem;
    z-index: 10;
    position: relative;
}

.signal-status {
    margin: 0 0 1.25rem;
    font-size: 0.95rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--teal);
}

.signal-cta {
    display: inline-block;
    padding: 0.9rem 2rem;
    background-color: var(--teal);
    color: var(--bg);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: background-color 0.3s, transform 0.3s;
}

.signal-cta:hover, .signal-cta:focus {
    background-color: var(--teal-dark);
    transform: translateY(-2px);
}

.signal-sub {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--teal);
    opacity: 0.8;
}