@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-deep: #0b1612;
    --bg-deep-2: #0f1f17;
    --green-bright: #4ade80;
    --green-mid: #22c55e;
    --green-dark: #166534;
    --orange-bright: #ff9d4d;
    --orange-mid: #ff7a29;
    --text-primary: #f3f7f3;
    --text-muted: #c3d1c9;
    --card-bg: rgba(255, 255, 255, 0.04);
    --card-border: rgba(255, 255, 255, 0.09);
}

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

html {
    overflow-x: hidden;
}

html, body {
    width: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(ellipse at 20% 0%, #13271d 0%, var(--bg-deep) 55%, #070d0a 100%);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'Poppins', sans-serif;
}

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

/* ---- Background animation canvas ---- */

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

.bg-gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(11, 22, 18, 0.1) 0%, rgba(11, 22, 18, 0.55) 70%, rgba(7, 13, 10, 0.9) 100%);
}

.page-content {
    position: relative;
    z-index: 10;
}

/* ---- Nav ---- */

nav {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 22px 0;
    background: rgba(11, 22, 18, 0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: padding 250ms ease, background 250ms ease, box-shadow 250ms ease;
    box-sizing: border-box;
}

nav.nav-scrolled {
    padding: 12px 0;
    background: rgba(8, 16, 13, 0.85);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, var(--green-bright) 0%, var(--orange-bright) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transition: font-size 250ms ease;
}

nav.nav-scrolled .logo {
    font-size: 1.25rem;
}

.nav-link {
    display: inline-block;
    padding: 12px 26px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--bg-deep);
    background: linear-gradient(90deg, var(--green-bright), var(--orange-bright));
    transition: padding 250ms ease, transform 200ms ease, box-shadow 200ms ease;
    box-shadow: 0 4px 16px rgba(74, 222, 128, 0.25);
}

.nav-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(255, 157, 77, 0.35);
}

.nav-link:focus-visible {
    outline: 2px solid var(--green-bright);
    outline-offset: 3px;
}

nav.nav-scrolled .nav-link {
    padding: 9px 20px;
    font-size: 0.85rem;
}

/* ---- Hero ---- */

.hero {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    padding: 13vh 24px 8vh;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.02em;
    background: linear-gradient(100deg, var(--text-primary) 20%, var(--green-bright) 55%, var(--orange-bright) 85%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    margin: 28px auto 0;
    max-width: 680px;
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-muted);
}

/* ---- Cards ---- */

.cards-section {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 4vh 24px 10vh;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 38px 36px;
    transition: transform 280ms ease, box-shadow 280ms ease, border-color 280ms ease;
}

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(74, 222, 128, 0.35);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--green-mid), var(--orange-mid));
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon svg {
    width: 22px;
    height: 22px;
    stroke: #0b1612;
}

.card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.card p {
    font-size: 0.98rem;
    line-height: 1.65;
    color: var(--text-muted);
}

/* ---- CTA ---- */

.cta-section {
    position: relative;
    z-index: 2;
    max-width: 680px;
    margin: 0 auto;
    padding: 6vh 24px 14vh;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.signal-status {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--green-bright);
    margin-bottom: 22px;
}

.signal-cta {
    display: inline-block;
    padding: 18px 48px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.01em;
    color: var(--bg-deep);
    background: linear-gradient(90deg, var(--green-bright), var(--orange-bright));
    box-shadow: 0 10px 30px rgba(255, 157, 77, 0.3);
    transition: transform 200ms ease, box-shadow 200ms ease;
}

.signal-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 14px 38px rgba(74, 222, 128, 0.4);
}

.signal-cta:focus-visible {
    outline: 2px solid var(--green-bright);
    outline-offset: 4px;
}

.signal-sub {
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ---- Media queries ---- */

@media (max-width: 480px) {
    .nav-inner {
        padding: 0 18px;
    }

    .logo {
        font-size: 1.15rem;
    }

    .nav-link {
        padding: 9px 16px;
        font-size: 0.8rem;
    }

    nav.nav-scrolled .nav-inner {
        padding: 0 18px;
    }

    nav.nav-scrolled .logo {
        font-size: 1rem;
    }

    nav.nav-scrolled .nav-link {
        padding: 7px 14px;
        font-size: 0.72rem;
    }

    .hero {
        padding: 11vh 18px 6vh;
    }

    .hero p {
        font-size: 1rem;
    }

    .cards-section {
        padding: 3vh 18px 8vh;
    }

    .card {
        padding: 30px 26px;
    }

    .signal-cta {
        padding: 16px 32px;
        font-size: 0.95rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    #energy-canvas {
        display: none;
    }

    * {
        transition: none !important;
    }
}

/* ---- Footer ---- */
/* Footer markup itself is injected via SSI and shouldn't be edited per-domain -
   spacing and contrast against the dark page background live here instead. */

footer {
    position: relative;
    z-index: 2;
    padding: 24px 20px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: rgba(7, 13, 10, 0.85);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

footer div {
    margin: 4px 0;
}

footer a {
    color: var(--green-bright);
}