@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;800&family=Source+Sans+Pro:wght@400;600&display=swap');

:root {
    --coral: #FF7F50;
    --coral-dark: #E77042;
    --navy: #1F2933;
    --slate: #3A3D50;
    --muted: #7D879C;
    --bg: #F2F4F8;
}

* { box-sizing: border-box; }

body, html {
    margin: 0;
    padding: 0;
    font-family: 'Source Sans Pro', sans-serif;
    background-color: var(--bg);
    color: var(--navy);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
}

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

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

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

nav {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
}

.logo .kari { color: var(--coral); }
.logo .ola { color: var(--slate); }

.nav-link {
    text-decoration: none;
    padding: 0.6rem 1.4rem;
    border-radius: 5px;
    color: #FFFFFF;
    background-color: var(--coral);
    font-weight: 600;
    white-space: nowrap;
    transition: background-color 0.3s;
}

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

@media (max-width: 650px) {
    nav { padding: 1rem 1.25rem; }
    .logo { font-size: 1.25rem; }
    .nav-link { padding: 0.5rem 1rem; font-size: 0.85rem; }
}

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

.hero {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 780px;
    margin: 4rem auto 0;
    padding: 0 2rem;
}

.hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: clamp(2rem, 6vw, 4rem);
    line-height: 1.2;
    color: var(--navy);
    margin: 0;
}

.hero-sub { color: var(--slate); }

.hero-tagline {
    color: var(--muted);
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 640px;
    margin: 1.5rem auto 0;
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.5rem; }
}

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

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

.card {
    background-color: #fff;
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
    text-align: left;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

.card-label {
    font-size: 0.8rem;
    letter-spacing: 2px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--coral);
}

.card-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4rem;
    color: var(--navy);
    margin: 0.5rem 0 0;
}

.card-text {
    color: #5B6472;
    line-height: 1.6;
    margin: 0.5rem 0 0;
}

@media (max-width: 600px) {
    .card { padding: 28px; }
}

/* ── Signal line / CTA ─────────────────────────────────────────── */

.signal-line {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 5rem 2rem;
    background-color: #fff;
    margin-top: 2rem;
}

.signal-inner {
    max-width: 600px;
    margin: 0 auto;
}

.signal-status {
    font-size: 0.85rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--muted);
    opacity: 0.85;
    margin: 0 0 1.5rem;
}

.signal-cta {
    display: inline-block;
    padding: 0.9rem 2.2rem;
    text-decoration: none;
    color: #FFFFFF;
    background-color: var(--slate);
    border-radius: 6px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: background-color 0.3s, transform 0.2s;
}

.signal-cta:hover,
.signal-cta:focus {
    background-color: var(--coral);
    transform: translateY(-3px);
}

.signal-sub {
    margin: 1.25rem 0 0;
    color: var(--muted);
    font-size: 0.9rem;
    letter-spacing: 1px;
}