:root {
    --cert-bg: #fdfdfd;
    --cert-text: #333333;
    --cert-primary: #004d40; /* Deep Teal */
    --cert-secondary: #ffffff;
    --cert-accent: #ffab00; /* Amber/Gold */
    --cert-border: #e0e0e0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--cert-bg); color: var(--cert-text);
    font-family: 'Georgia', 'Times New Roman', Times, serif; /* Formal serif for certification */
    line-height: 1.7; overflow-x: hidden;
}

.cert-container { max-width: 900px; margin: 0 auto; padding: 0 40px;}

/* Header */
.cert-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 30px 0; margin-bottom: 50px; border-bottom: 2px solid var(--cert-primary);
}
.cert-brand {
    font-size: 26px; font-weight: bold; color: var(--cert-primary);
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    display: flex; align-items: center; gap: 10px; text-transform: uppercase; letter-spacing: 1px;
}
.cert-brand::before {
    content: '🏅'; font-size: 28px;
}
.cert-nav { display: flex; gap: 20px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;}
.cert-nav a {
    font-size: 14px; font-weight: bold; color: #666; text-decoration: none;
    text-transform: uppercase; letter-spacing: 1px; transition: color 0.3s;
}
.cert-nav a:hover, .cert-nav a.active { color: var(--cert-primary); }

/* Hero */
.cert-hero {
    text-align: center; margin-bottom: 60px; padding: 50px 20px;
    background: var(--cert-secondary); border: 1px solid var(--cert-border);
    position: relative; box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.cert-hero::before {
    content: ''; position: absolute; top: 10px; left: 10px; right: 10px; bottom: 10px;
    border: 1px dashed var(--cert-border); pointer-events: none;
}
.cert-hero h1 {
    font-size: 38px; color: var(--cert-primary); margin-bottom: 20px; font-weight: normal;
}
.cert-hero p { font-size: 16px; color: #555; margin-bottom: 40px; font-style: italic;}

.btn-cert {
    display: inline-block; padding: 15px 40px; font-size: 15px; font-weight: bold;
    color: #fff; background: var(--cert-primary); border: none;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-decoration: none; text-transform: uppercase; letter-spacing: 2px;
    transition: background 0.3s; position: relative; z-index: 1;
}
.btn-cert:hover { background: #00251a; }

/* Features */
.cert-features { margin-bottom: 80px; }
.cf-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.cf-card {
    text-align: center; padding: 30px;
}
.cf-icon {
    width: 80px; height: 80px; margin: 0 auto 20px;
    border-radius: 50%; border: 2px solid var(--cert-accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 36px; color: var(--cert-primary);
}
.cf-card h3 { font-size: 20px; color: var(--cert-primary); margin-bottom: 15px; font-weight: normal;}
.cf-card p { font-size: 15px; color: #666; text-align: justify;}

/* Verification Box */
.cert-verify {
    background: var(--cert-secondary); padding: 40px; border: 1px solid var(--cert-border);
    margin-bottom: 80px; text-align: center; box-shadow: 0 5px 15px rgba(0,0,0,0.03);
}
.cert-verify h2 { font-size: 24px; color: var(--cert-primary); margin-bottom: 20px; font-weight: normal;}
.cert-verify p { font-size: 15px; color: #555; margin-bottom: 20px;}
.verify-code {
    display: inline-block; padding: 10px 20px; background: #f0f0f0; border: 1px solid #ccc;
    font-family: monospace; font-size: 18px; color: #333; letter-spacing: 2px;
}

/* FAQ */
.cert-faq { margin-bottom: 80px; }
.cert-faq h2 { font-size: 26px; text-align: center; margin-bottom: 40px; color: var(--cert-primary); font-weight: normal;}
.c-faq-item {
    margin-bottom: 30px; border-bottom: 1px dotted var(--cert-border); padding-bottom: 20px;
}
.c-fq { font-size: 18px; font-weight: bold; color: var(--cert-primary); margin-bottom: 10px;}
.c-fa { font-size: 15px; color: #555; text-align: justify;}

footer {
    text-align: center; padding: 30px 0; color: #999; font-size: 12px;
    border-top: 1px solid var(--cert-border); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-transform: uppercase; letter-spacing: 1px;
}

@media (max-width: 768px) {
    .cert-header { flex-direction: column; gap: 20px; }
    .cf-grid { grid-template-columns: 1fr; }
    .cert-hero h1 { font-size: 30px; }
}