:root {
    --bg-main: #090d16;
    --bg-card: rgba(18, 24, 38, 0.72);
    --bg-card-hover: rgba(28, 38, 59, 0.85);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(16, 185, 129, 0.3);
    --accent-green: #10b981;
    --accent-green-glow: 0 0 25px rgba(16, 185, 129, 0.45);
    --accent-gold: #f59e0b;
    --accent-cyan: #38bdf8;
    --accent-red: #ef4444;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-main);
    line-height: 1.6;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    background: radial-gradient(circle at 50% 0%, rgba(16, 185, 129, 0.08) 0%, transparent 60%),
                radial-gradient(circle at 80% 40%, rgba(56, 189, 248, 0.06) 0%, transparent 50%),
                var(--bg-main);
}

/* Background canvas for subtle animated cubes/particles */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* NAVBAR */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(9, 13, 22, 0.75);
    border-bottom: 1px solid var(--border-glass);
    padding: 16px 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.5px;
}

.brand-icon {
    font-size: 1.6rem;
    filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.6));
}

.brand span {
    background: linear-gradient(135deg, #fff 40%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* STATUS PILL */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-green);
}

.status-pill.offline {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.25);
    color: var(--accent-red);
}

.dot-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 10px currentColor;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.85); }
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* HERO SECTION */
.hero {
    padding: 90px 0 60px;
    text-align: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-gold);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #10b981 0%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 40px;
}

/* IP BOX */
.ip-box {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    padding: 10px 14px 10px 24px;
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: var(--transition);
    max-width: 100%;
}

.ip-box:hover {
    border-color: var(--border-glow);
    box-shadow: var(--accent-green-glow);
}

.ip-address {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 800;
    font-size: 1.35rem;
    color: #fff;
    letter-spacing: 0.5px;
}

.ip-copy-btn {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.ip-copy-btn:hover {
    filter: brightness(1.1);
    transform: scale(1.03);
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

/* SECTIONS COMMON */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 50px;
}

.section-subtitle {
    color: var(--accent-green);
    font-weight: 800;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 14px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* CARDS GRID */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.16);
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.25);
}

.card-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* STEPS GUIDE */
.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 30px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.step-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-3px);
}

.step-num {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 3.5rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.04);
    line-height: 1;
}

.step-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
}

.step-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.step-badge {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: var(--radius-sm);
    color: var(--accent-cyan);
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 14px;
}

/* VOICE CHAT FEATURE BOX */
.voice-banner {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(56, 189, 248, 0.08) 100%),
                var(--bg-card);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-top: 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.key-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 8px;
    background: #1e293b;
    border: 1px solid #475569;
    border-bottom: 3px solid #334155;
    border-radius: 6px;
    font-family: monospace;
    font-weight: 800;
    font-size: 0.9rem;
    color: var(--accent-gold);
}

.voice-keys-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.voice-keys-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* STATS SECTION */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.stat-box {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 900;
    color: #fff;
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.progress-bar-wrap {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    margin-top: 14px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #10b981, #38bdf8);
    border-radius: var(--radius-full);
    width: 1%;
    transition: width 0.6s ease;
}

/* RULES SECTION */
.rules-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}

.rule-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.rule-num {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent-green);
    background: rgba(16, 185, 129, 0.1);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.rule-text h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.rule-text p {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

/* TOAST NOTIFICATION */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #10b981;
    color: #fff;
    padding: 12px 22px;
    border-radius: var(--radius-md);
    font-weight: 700;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
}

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

/* FOOTER */
.footer {
    border-top: 1px solid var(--border-glass);
    padding: 50px 0 30px;
    background: rgba(9, 13, 22, 0.85);
    margin-top: 80px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.88rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 24px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .voice-banner {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 24px;
    }
    .hero {
        padding: 60px 0 40px;
    }
    .ip-box {
        flex-direction: column;
        width: 100%;
        padding: 18px;
    }
    .ip-copy-btn {
        width: 100%;
        justify-content: center;
    }
}