:root {
    --green-soft: #2C974B;
    --green-muted: #01853C;
    --green-bright: #00FF00;
    --gray-dark: #222222;
    --black: #000000;
    --white: #FFFFFF;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--black);
    color: var(--white);
    line-height: 1.6;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

header {
    padding: 3rem 2rem 2rem;
    text-align: center;
    background: radial-gradient(circle, var(--gray-dark), var(--black));
    border-bottom: 1px solid var(--green-muted);
    animation: fadeIn 2s ease-in-out;
    position: relative;
    z-index: 1;
}

header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    width: 100%;
    background-color: var(--green-muted);
    overflow: hidden;
    z-index: 2;
}

header::after::before {
    content: '';
    position: absolute;
    top: 0;
    left: -20%;
    width: 20%;
    height: 100%;
    background: linear-gradient(to right, transparent, var(--green-bright), transparent);
    animation: moveLight 4s linear infinite;
}

header::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle, rgba(0, 255, 0, 0.08), transparent 70%);
    animation: pulseGlow 6s infinite ease-in-out;
    z-index: -1;
}

.demo-button-top {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: var(--green-bright);
    color: var(--black);
    padding: 0.9rem 2rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.05rem;
    box-shadow: 0 0 25px rgba(0, 255, 0, 0.7), 0 0 50px rgba(0, 255, 0, 0.2) inset;
    transition: all 0.3s ease;
    z-index: 10;
    animation: focusGlow 3s infinite ease-in-out;
    backdrop-filter: blur(4px);
    border: 2px solid var(--green-soft);
}

.demo-button-top:hover {
    transform: scale(1.08);
    box-shadow: 0 0 35px rgba(0, 255, 0, 0.9), 0 0 70px rgba(0, 255, 0, 0.4) inset;
    background: var(--green-soft);
    color: var(--white);
}

@media (min-width: 1024px) {
    .demo-button-top {
        position: fixed;
        top: 1.5rem;
        right: 1.5rem;
    }
}

header img {
    height: 60px;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 12px var(--green-bright));
    animation: fadeIn 2s ease-in-out;
}

header h1 {
    font-size: 2.8rem;
    color: var(--green-bright);
    margin-bottom: 0.5rem;
    animation: slideDown 1.2s ease-in-out;
}

header p {
    font-size: 1.2rem;
    color: var(--green-soft);
    animation: fadeIn 1.5s ease-in-out;
}

section {
    padding: 4rem 2rem;
    max-width: 960px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-in-out;
    position: relative;
    z-index: 1;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top, rgba(0, 255, 0, 0.05), transparent);
    z-index: -1;
}

section h2 {
    color: var(--green-bright);
    font-size: 2rem;
    margin-bottom: 1.2rem;
    position: relative;
}

section h2::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background-color: var(--green-bright);
    bottom: -10px;
    left: 0;
    border-radius: 999px;
}

section p,
li {
    font-size: 1rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.section-dark {
    background: linear-gradient(to bottom, #111, #000);
    border-top: 1px solid var(--green-muted);
    border-bottom: 1px solid var(--green-muted);
}

.comparison {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.card {
    position: relative;
    flex: 1;
    min-width: 280px;
    background-color: #111;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.15);
    border: 1px solid var(--green-muted);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(2px);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 0 30px rgba(0, 255, 0, 0.4);
}

.card h3 {
    color: var(--green-bright);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.ribbon {
    position: absolute;
    top: 0;
    right: 0;
    transform: rotate(45deg) translate(35%, -35%);
    background-color: #FF8800;
    color: white;
    padding: 0.3rem 2.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    z-index: 2;
}

.ribbon.free {
    background-color: var(--green-muted);
}

.ribbon.paid {
    background-color: #FF8800;
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: var(--gray-dark);
    color: var(--green-soft);
    font-size: 0.9rem;
}

.cta {
    text-align: center;
    margin-top: 3rem;
    animation: fadeIn 1.5s ease-in-out;
    display: flex;
    flex-direction: row;
    gap: 1rem;
    align-items: center;
}

.cta a {
    background-color: var(--green-bright);
    color: var(--black);
    padding: 0.9rem 2rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.25);
    transition: all 0.3s ease;
}

.cta a:hover {
    background-color: var(--green-soft);
    color: var(--white);
    transform: scale(1.05);
    box-shadow: 0 0 25px rgba(0, 255, 0, 0.4);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulseGlow {

    0%,
    100% {
        opacity: 0.2;
        transform: scale(1);
    }

    50% {
        opacity: 0.4;
        transform: scale(1.1);
    }
}

@keyframes focusGlow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(0, 255, 0, 0.6), 0 0 40px rgba(0, 255, 0, 0.2) inset;
    }

    50% {
        box-shadow: 0 0 40px rgba(0, 255, 0, 0.9), 0 0 80px rgba(0, 255, 0, 0.3) inset;
    }
}

@keyframes moveLight {
    0% {
        left: -20%;
    }

    50% {
        left: 100%;
    }

    100% {
        left: -20%;
    }
}

.soon-banner {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, calc(-50% - 120px));
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 1.2rem;
    border-radius: 999px;
    border: 1px solid var(--green-soft);
    background: linear-gradient(90deg, rgba(0, 24, 10, 0.9), rgba(0, 40, 20, 0.9));
    color: var(--green-bright);
    box-shadow: 0 8px 30px rgba(0, 255, 0, 0.12), 0 0 80px rgba(0, 255, 0, 0.08) inset;
    z-index: 9999;
    transition: transform 360ms cubic-bezier(.2, .9, .2, 1), opacity 360ms;
    opacity: 0;
    font-weight: 700;
    backdrop-filter: blur(6px);
    min-width: 240px;
    justify-content: center;
    pointer-events: auto;
}

.soon-banner.show {
    transform: translate(-50%, 0);
    opacity: 1;
}

.soon-text {
    font-size: 1rem;
    color: var(--green-bright);
    text-shadow: 0 0 8px rgba(0, 255, 0, 0.2);
}

.soon-close {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--green-soft);
    padding: 0.1rem 0.5rem;
    border-radius: 6px;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    transition: transform 160ms, background 160ms, color 160ms;
}

.soon-close:hover {
    transform: scale(1.08);
    background: rgba(0, 255, 0, 0.05);
    color: var(--green-bright);
}

#soonBanner[hidden] {
    display: none;
}