:root {
    --primary-color: #004AAD; /* Tmavá Modrá (Důvěra) */
    --accent-color: #4AD900; /* Zářivá Zelená (Krypto, Bezpečnost) */
    --bg-dark: #1a1a23; /* Tmavé Pozadí */
    --bg-medium: #2a2a35; /* Lehce světlejší pozadí pro sekce */
    --text-light: #f0f0f0;
    --text-muted: #a0a0a0;
    --red-color: #dc3545;
}

/* --- Základní Styly --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Poppins', sans-serif; line-height: 1.6; background-color: var(--bg-dark); color: var(--text-light); }
.container { width: 90%; max-width: 1200px; margin: 0 auto; padding: 20px 0; }
a { color: var(--accent-color); text-decoration: none; transition: color 0.3s; }
a:hover { color: #37a800; }

/* --- Header --- */
.header { background-color: var(--bg-dark); border-bottom: 3px solid var(--primary-color); }
.header .container { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; }
.header h1 { font-size: 32px; font-weight: 700; color: var(--text-light); }
.header h1 span { color: var(--primary-color); font-weight: 300; font-size: 0.8em; }
.header nav a { color: var(--text-light); margin-left: 25px; font-weight: 500; opacity: 0.8; }
.header nav a:hover { color: var(--accent-color); opacity: 1; }

/* --- CTA Tlačítka --- */
.cta-button { display: inline-block; background-color: var(--primary-color); color: var(--text-light); padding: 12px 30px; border-radius: 5px; font-weight: 600; transition: background-color 0.3s, transform 0.2s; border: none; }
.cta-button:hover { background-color: #003d8f; transform: translateY(-2px); }
.primary-cta { background-color: var(--accent-color); color: var(--bg-dark); }
.primary-cta:hover { background-color: #37a800; }
.secondary-cta { background-color: var(--bg-medium); color: var(--text-light); border: 1px solid var(--primary-color); }
.secondary-cta:hover { background-color: #3c3c4a; }

/* --- Hero Sekce --- */
.hero-section { padding: 120px 0; text-align: center; background-color: var(--bg-dark); }
.hero-section .tagline { font-size: 16px; letter-spacing: 3px; text-transform: uppercase; color: var(--primary-color); margin-bottom: 10px; }
.hero-section h2 { font-size: 52px; font-weight: 700; margin-bottom: 20px; line-height: 1.2; color: var(--text-light); }
.hero-section .description { font-size: 20px; max-width: 800px; margin: 0 auto 40px; color: var(--text-muted); }

/* --- Sekce Vize & Ekosystém (Obecné) --- */
.vize-section, .ekosystem-section, .investice-section { padding: 80px 0; text-align: center; }
.vize-section { background-color: var(--bg-medium); }
.ekosystem-section { background-color: var(--bg-dark); }
.inverted-bg { background-color: var(--bg-medium); }

h3 { font-size: 36px; margin-bottom: 15px; color: var(--text-light); }
.intro-text { font-size: 18px; color: var(--text-muted); margin-bottom: 50px; max-width: 800px; margin-left: auto; margin-right: auto; }

/* --- Grid pro Vize (3 sloupce) --- */
.vize-grid { display: flex; gap: 30px; justify-content: center; }
.vize-item { flex: 1; padding: 20px; border-radius: 8px; text-align: center; background-color: #33333f; }
.vize-item i { font-size: 40px; margin-bottom: 15px; }
.vize-item h4 { font-size: 22px; margin-bottom: 10px; color: var(--text-light); }
.vize-item p { color: var(--text-muted); }

/* --- Grid pro Ekosystém (Rozcestník) --- */
.ekosystem-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.ekosystem-item { padding: 30px; border-radius: 10px; background-color: #2a2a35; border-top: 5px solid var(--primary-color); display: flex; flex-direction: column; justify-content: space-between; }
.ekosystem-item i { font-size: 45px; margin-bottom: 15px; }
.ekosystem-item h4 { font-size: 24px; margin-bottom: 10px; color: var(--text-light); }
.ekosystem-item p { color: var(--text-muted); margin-bottom: 20px; flex-grow: 1; }
.ekosystem-item .item-link { margin-top: auto; padding: 10px 20px; font-size: 16px; width: 100%; text-align: center; }
.ekosystem-item:nth-child(2) { border-top-color: var(--accent-color); }
.ekosystem-item:nth-child(3) { border-top-color: var(--red-color); }

/* --- Grid pro Investiční Aktiva --- */
.asset-grid { display: flex; justify-content: center; gap: 40px; margin-bottom: 40px; }
.asset-item { text-align: center; }
.asset-item i { font-size: 36px; color: var(--primary-color); margin-bottom: 10px; }
.asset-item p { font-size: 18px; color: var(--text-light); font-weight: 600; }
.top-margin-cta { margin-top: 30px; }

/* --- Barvy Ikon --- */
.icon-blue { color: var(--primary-color); }
.icon-green { color: var(--accent-color); }
.icon-red { color: var(--red-color); }

/* --- Kontaktní Sekce a Footer (Zůstává podobný) --- */
.contact-section { padding: 60px 0; text-align: center; background-color: var(--bg-dark); }
.contact-section h3 { color: var(--text-light); margin-bottom: 20px; }
.contact-info-text { color: var(--text-muted); max-width: 600px; margin: 0 auto 30px; }
.contact-mail-button { font-size: 18px; padding: 15px 40px; }

.footer { padding: 30px 0; text-align: center; background-color: #111115; border-top: 1px solid #3c3c4a; }
.footer p { color: #555; font-size: 0.9em; }

/* --- Responzivita --- */
@media (max-width: 992px) {
    .vize-grid, .asset-grid { flex-direction: column; gap: 20px; }
    .hero-section h2 { font-size: 42px; }
}