:root {
    --bg-dark: #05070c;
    --bg-surface: #0b101b;
    --bg-card: rgba(13, 19, 33, 0.85);
    --border-card: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(16, 185, 129, 0.4);
    --primary: #10b981;
    --primary-glow: rgba(16, 185, 129, 0.3);
    --primary-hover: #059669;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    width: 100%;
    background-image: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(16, 185, 129, 0.15), transparent),
        radial-gradient(circle at 90% 80%, rgba(88, 101, 242, 0.08), transparent 40%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1700px;
    width: 94%;
    margin: 0 auto;
}

/* --- ANIMACE (SMĚROVÉ NÁJEZDY) --- */
.reveal-left, .reveal-right, .reveal-up {
    opacity: 0;
    transition: all 0.9s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
}

.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-up { transform: translateY(40px); }

.reveal-left.active, .reveal-right.active, .reveal-up.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(16px);
    background: rgba(5, 7, 12, 0.9);
    border-bottom: 1px solid var(--border-card);
    width: 100%;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: inherit;
}

.logo-avatar {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-card);
    box-shadow: 0 0 20px var(--primary-glow);
    font-size: 1.4rem;
}

.logo-text {
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--primary);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.25s ease;
}

nav a:hover, nav a.active {
    color: var(--primary);
}

/* FULLSCREEN HERO BANNER */
.hero-banner {
    min-height: calc(100dvh - 80px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 3rem 1rem 5rem 1rem;
    margin-bottom: 4rem;
    background: linear-gradient(180deg, rgba(5, 7, 12, 0.2) 0%, rgba(5, 7, 12, 0.75) 100%),
                url('../img/welcome_picture.jfif') center/cover no-repeat;
    border-bottom: 1px solid var(--border-card);
    border-radius: 0 0 32px 32px;
    width: 100%;
}

.hero-title-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    max-width: 100%;
}

.hero-logo-big {
    width: 70px;
    height: 70px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.3);
    margin-bottom: 0.25rem;
}

.hero-main-title {
    font-size: clamp(2.8rem, 7vw, 6rem);
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.1;
    color: #fff;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.hero-main-title span {
    background: linear-gradient(135deg, #10b981, #34d399);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle-top {
    color: #cbd5e1;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}

.scroll-down-indicator {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    opacity: 0.8;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translate(-50%, 0); }
    40% { transform: translate(-50%, -8px); }
    60% { transform: translate(-50%, -4px); }
}

/* SEKCE POD HERO BANNEREM */
.hero-section {
    display: grid;
    grid-template-columns: 1.3fr 0.9fr;
    gap: 5rem;
    align-items: center;
}

.badge-offline {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
    padding: 0.5rem 1.1rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.pulse-dot-red {
    width: 8px;
    height: 8px;
    background: #ef4444;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    animation: pulse-red 2s infinite;
}

@keyframes pulse-red {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* IP Bar & CTA */
.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
}

.ip-bar {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    backdrop-filter: blur(12px);
    padding: 0.75rem 0.75rem 0.75rem 1.5rem;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 550px;
    width: 100%;
    cursor: pointer;
    transition: all 0.3s ease;
    gap: 1rem;
}

.ip-bar:hover {
    border-color: var(--border-glow);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.2);
}

.ip-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.05rem;
    font-weight: 700;
    word-break: break-all;
}

.btn-copy {
    background: var(--primary);
    color: #022c19;
    font-weight: 700;
    padding: 0.75rem 1.25rem;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s ease;
    white-space: nowrap;
}

.btn-copy:hover {
    background: var(--primary-hover);
}

.cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-main, .btn-secondary {
    padding: 1rem 1.75rem;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.btn-main {
    background: var(--primary);
    color: #022c19;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-main:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.45);
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

/* Hero pravá karta */
.hero-right-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    backdrop-filter: blur(16px);
    border-radius: 24px;
    padding: 2.75rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--border-card);
    gap: 1rem;
}

.stat-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.stat-label { color: var(--text-muted); font-size: 1rem; }
.stat-value { font-weight: 700; font-size: 1.05rem; text-align: right; }

/* Sekce a gridy */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.4s ease;
}

.card:hover {
    border-color: var(--border-glow);
    transform: translateY(-6px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
    display: inline-block;
}

.card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.6rem;
}

.card p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 1rem;
}

/* Whitelist formulář box */
.form-box {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    padding: 3.5rem;
    border-radius: 24px;
    backdrop-filter: blur(12px);
}

.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    background: rgba(5, 7, 12, 0.7);
    border: 1px solid var(--border-card);
    padding: 1rem 1.25rem;
    border-radius: 12px;
    color: #fff;
    font-size: 1rem;
    transition: all 0.25s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

textarea.form-control {
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary);
    color: #022c19;
    font-weight: 800;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

footer {
    border-top: 1px solid var(--border-card);
    padding: 2.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    background: rgba(5, 7, 12, 0.9);
    margin-top: auto;
}

/* --- RESPONZIVITA PRO MOBILY A TABLETY --- */
@media (max-width: 992px) {
    .hero-section { 
        grid-template-columns: 1fr; 
        gap: 3rem;
    }
    .grid-3 { 
        grid-template-columns: 1fr; 
    }
    .form-box {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .nav-wrapper {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
        padding: 1rem 0;
    }
    nav ul {
        gap: 1.25rem;
        justify-content: center;
    }
    .hero-banner {
        min-height: calc(100dvh - 70px);
        border-radius: 0 0 20px 20px;
    }
    .hero-main-title {
        font-size: 2.5rem;
    }
    .cta-group {
        flex-direction: column;
        width: 100%;
    }
    .btn-main, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    .ip-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 1rem;
        text-align: center;
    }
    .btn-copy {
        width: 100%;
    }
}