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

:root {
    --bg-dark: #020617;
    --bg-deep: #020818;
    --accent-green: #00ff88;
    --accent-green-soft: #22c55e;
    --accent-cyan: #00ccff;
    --accent-purple: #8b5cf6;
    --text-main: #e5e7eb;
    --text-muted: #9ca3af;
    --border-soft: rgba(148, 163, 184, 0.35);
}

body {
    font-family: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top left, #1e293b 0, #020617 45%, #020617 100%);
    color: var(--text-main);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background layers */
.matrix-bg {
    position: fixed;
    inset: 0;
    opacity: 0.05;
    z-index: -3;
    pointer-events: none;
}

.matrix-column {
    position: absolute;
    top: -100px;
    font-size: 12px;
    color: var(--accent-green);
    animation: matrixRain 20s linear infinite;
}

@keyframes matrixRain {
    to {
        transform: translateY(100vh);
    }
}

.cyber-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -4;
}

.orb {
    position: fixed;
    border-radius: 999px;
    filter: blur(40px);
    opacity: 0.45;
    mix-blend-mode: screen;
    z-index: -2;
}

.orb-1 {
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.9), transparent 70%);
    top: 5%;
    left: 10%;
}

.orb-2 {
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.9), transparent 70%);
    bottom: 5%;
    right: 5%;
}

/* Header / nav */
.header {
    position: fixed;
    inset-inline: 0;
    top: 0;
    padding: 14px 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.35);
    z-index: 1000;
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding-inline: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--accent-green);
    text-transform: uppercase;
}

.logo i {
    font-size: 26px;
    color: var(--accent-cyan);
    filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.7));
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 26px;
    font-size: 0.95rem;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding-bottom: 2px;
    transition: color 0.25s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
    transition: width 0.25s ease;
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-login {
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.55);
    background: rgba(15, 23, 42, 0.9);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}

.nav-login i {
    font-size: 0.95rem;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    position: relative;
}

.hero-inner {
    max-width: 960px;
    margin: 0 auto;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.12), transparent 55%),
        rgba(15, 23, 42, 0.85);
    border-radius: 24px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    box-shadow:
        0 24px 60px rgba(15, 23, 42, 0.95),
        0 0 0 1px rgba(15, 23, 42, 1);
    padding: 40px 28px 36px;
    backdrop-filter: blur(22px);
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.4);
    color: #bbf7d0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    margin-bottom: 18px;
}

.hero h1 {
    font-size: clamp(2.8rem, 5vw, 4.6rem);
    font-weight: 800;
    margin-bottom: 18px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan), var(--accent-purple));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 25px rgba(15, 23, 42, 0.9);
    letter-spacing: 0.14em;
}

.hero-subtitle {
    font-size: 1.15rem;
    margin-bottom: 32px;
    color: var(--text-muted);
    line-height: 1.6;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    margin-top: 26px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.hero-meta i {
    color: var(--accent-green-soft);
}

.cta-row {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 30px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    color: #020617;
    text-decoration: none;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: all 0.25s;
    position: relative;
    overflow: hidden;
    box-shadow: 0 18px 40px rgba(16, 185, 129, 0.45);
}

.cta-button::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
}

.cta-button:hover::before {
    transform: translateX(100%);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 55px rgba(16, 185, 129, 0.55);
}

.secondary-cta {
    padding: 14px 24px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.5);
    background: rgba(15, 23, 42, 0.9);
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.secondary-cta i {
    font-size: 0.95rem;
}

/* Sections */
.features {
    padding: 90px 20px 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.4rem;
    text-align: center;
    margin-bottom: 56px;
    position: relative;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 3px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    border-radius: 999px;
}

.section-kicker {
    text-align: center;
    margin-bottom: 14px;
    color: var(--accent-cyan);
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 30px;
}

.feature-card {
    position: relative;
    background: rgba(15, 23, 42, 0.92);
    border-radius: 20px;
    padding: 30px 26px;
    border: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow:
        0 18px 40px rgba(15, 23, 42, 0.95),
        0 0 0 1px rgba(15, 23, 42, 1);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: -40%;
    background: conic-gradient(from 180deg,
            rgba(34, 197, 94, 0.28),
            transparent,
            rgba(59, 130, 246, 0.25),
            transparent,
            rgba(34, 197, 94, 0.28));
    opacity: 0;
    transition: opacity 0.35s ease;
}

.feature-inner {
    position: relative;
    z-index: 1;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(56, 189, 248, 0.6);
    box-shadow:
        0 24px 60px rgba(15, 23, 42, 0.95),
        0 0 0 1px rgba(37, 99, 235, 0.6);
}

.feature-card:hover::before {
    opacity: 0.55;
}

.feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.75), rgba(56, 189, 248, 0.1));
    color: #022c22;
    margin-bottom: 16px;
    font-size: 1.8rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* How it works */
.how-it-works {
    padding: 90px 20px 80px;
    background: radial-gradient(circle at center, rgba(30, 64, 175, 0.3), rgba(2, 6, 23, 0.95));
}

.steps-container {
    max-width: 1200px;
    margin: 0 auto;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 34px;
    margin-top: 52px;
}

.step-card {
    text-align: center;
}

.step-number {
    width: 74px;
    height: 74px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    color: #020617;
    margin: 0 auto 22px;
    position: relative;
}

.step-number::after {
    content: '';
    position: absolute;
    inset: -9px;
    border-radius: inherit;
    border: 2px solid var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(1.08);
        opacity: 0;
    }
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.step-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Download */
.download {
    padding: 90px 20px 80px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.download-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 24px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 22px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: rgba(15, 23, 42, 0.95);
    border-radius: 16px;
    border: 1px solid rgba(56, 189, 248, 0.7);
    color: var(--text-main);
    text-decoration: none;
    transition: all 0.25s;
}

.download-btn i {
    font-size: 1.5rem;
    color: var(--accent-green);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(8, 47, 73, 0.9);
    border-color: var(--accent-green);
}

.download-btn.disabled {
    opacity: 0.55;
    cursor: not-allowed;
    border-style: dashed;
}

.download-note {
    color: #6b7280;
    font-size: 0.9rem;
    margin-top: 26px;
}

/* Footer */
.footer {
    padding: 40px 20px 26px;
    background: rgba(0, 0, 0, 0.55);
    border-top: 1px solid rgba(148, 163, 184, 0.3);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 22px;
    flex-wrap: wrap;
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.25s;
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

.copyright {
    color: #6b7280;
    font-size: 0.85rem;
}

/* Scroll animation */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(26px);
    transition: all 0.6s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
    .hero-inner {
        padding-inline: 22px;
    }

    .nav-links {
        display: none;
    }
}

@media (max-width: 640px) {
    .section-title {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

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

    .download-buttons {
        flex-direction: column;
    }

    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}