:root {
    --clock-bg: #111827;
    --clock-text: #e5e7eb;
    --clock-primary: #f59e0b; /* Amber */
    --clock-secondary: #1f2937;
    --clock-accent: #10b981; /* Yellow/Green */
    --clock-border: #374151;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--clock-bg); color: var(--clock-text);
    font-family: 'Roboto Mono', monospace; /* Monospace for time/stability feel */
    line-height: 1.6; overflow-x: hidden;
}

.clock-container { max-width: 1000px; margin: 0 auto; padding: 0 20px;}

/* Header */
.clock-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 30px 0; margin-bottom: 50px; border-bottom: 1px dashed var(--clock-border);
}
.clock-brand {
    font-size: 24px; font-weight: bold; color: var(--clock-primary);
    display: flex; align-items: center; gap: 10px;
}
.clock-brand::before {
    content: '⏱'; font-size: 28px;
}
.clock-nav { display: flex; gap: 30px; }
.clock-nav a {
    font-size: 14px; color: #9ca3af; text-decoration: none; text-transform: uppercase;
    transition: color 0.3s;
}
.clock-nav a:hover, .clock-nav a.active { color: var(--clock-primary); }

/* Hero */
.clock-hero {
    text-align: center; margin-bottom: 80px; padding: 60px 20px;
    background: var(--clock-secondary); border: 1px solid var(--clock-border);
    position: relative;
}
.clock-hero::before {
    content: 'UPTIME: 99.999%'; position: absolute; top: 10px; left: 10px;
    font-size: 12px; color: var(--clock-accent);
}
.clock-hero h1 {
    font-size: 42px; color: #f9fafb; margin-bottom: 20px; font-weight: normal;
}
.clock-hero p { font-size: 18px; color: #d1d5db; margin-bottom: 40px; max-width: 700px; margin-left: auto; margin-right: auto;}

.btn-clock {
    display: inline-block; padding: 15px 35px; font-size: 16px;
    color: #000; background: var(--clock-primary); border: none;
    text-decoration: none; transition: background 0.3s; font-weight: bold;
    text-transform: uppercase;
}
.btn-clock:hover { background: #d97706; }

/* Stats */
.clock-stats {
    display: flex; justify-content: space-around; margin-bottom: 80px;
    border-top: 1px solid var(--clock-border); border-bottom: 1px solid var(--clock-border);
    padding: 30px 0;
}
.cs-item { text-align: center; }
.cs-val { font-size: 36px; color: var(--clock-accent); margin-bottom: 5px;}
.cs-lbl { font-size: 14px; color: #9ca3af; text-transform: uppercase;}

/* Features */
.clock-features { margin-bottom: 80px; }
.clock-features h2 { font-size: 24px; text-align: center; margin-bottom: 40px; color: var(--clock-primary); text-transform: uppercase;}
.cf-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.cf-card {
    background: var(--clock-secondary); padding: 30px; border-left: 4px solid var(--clock-primary);
}
.cf-card h3 { font-size: 18px; color: #f9fafb; margin-bottom: 15px;}
.cf-card p { font-size: 14px; color: #d1d5db;}

/* Nodes */
.clock-nodes { margin-bottom: 80px; }
.clock-nodes h2 { font-size: 24px; text-align: center; margin-bottom: 40px; color: var(--clock-primary); text-transform: uppercase;}
.cn-list { display: flex; flex-direction: column; gap: 10px; max-width: 600px; margin: 0 auto;}
.cn-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 15px 20px; background: var(--clock-secondary); border: 1px solid var(--clock-border);
}
.cn-status { color: var(--clock-accent); font-size: 12px; }
.cn-status::before { content: '● '; animation: pulse 2s infinite;}
@keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.3; } 100% { opacity: 1; } }

/* FAQ */
.clock-faq { margin-bottom: 100px; }
.clock-faq h2 { font-size: 24px; text-align: center; margin-bottom: 40px; color: var(--clock-primary); text-transform: uppercase;}
.c-faq-item {
    margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px dashed var(--clock-border);
}
.c-fq { font-size: 16px; color: #f9fafb; margin-bottom: 10px;}
.c-fa { font-size: 14px; color: #9ca3af;}

footer {
    text-align: center; padding: 30px 0; color: #6b7280; font-size: 12px;
    border-top: 1px solid var(--clock-border); text-transform: uppercase;
}

@media (max-width: 768px) {
    .clock-header { flex-direction: column; gap: 15px; }
    .cf-grid { grid-template-columns: 1fr; }
    .clock-stats { flex-direction: column; gap: 20px; }
}