/* =====================================================
   GLOBAL RESET
===================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* =====================================================
   BODY & BACKGROUND
===================================================== */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(135deg, #020617 0%, #020617 60%, #020617 100%);
    color: #e5e7eb;
    line-height: 1.85;
    font-size: 17px;
}

/* =====================================================
   HEADER (PREMIUM DARK)
===================================================== */
.site-header {
    background: linear-gradient(135deg, #020617, #020617);
    border-bottom: 1px solid #1e293b;
    box-shadow: 0 8px 30px rgba(0,0,0,0.6);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    max-width: 1200px;
    margin: auto;
    padding: 18px 26px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* Navigation Pills */
.nav a {
    color: #c7d2fe;
    font-weight: 600;
    font-size: 15px;
    padding: 10px 20px;
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(6px);
    transition: all 0.25s ease;
}

.nav a:hover {
    background: #2563eb;
    color: #ffffff;
    transform: translateY(-1px);
}

/* =====================================================
   MAIN CONTENT CONTAINER
===================================================== */
.container {
    max-width: 1200px;
    margin: 55px auto;
    background: linear-gradient(180deg, #020617, #020617);
    padding: 55px;
    border-radius: 20px;
    border: 1px solid #1e293b;
    box-shadow: 0 25px 60px rgba(0,0,0,0.7);
}

/* =====================================================
   HEADINGS (PREMIUM)
===================================================== */

/* Page Title */
h1 {
    font-size: 40px;
    margin-bottom: 26px;
    color: #f8fafc;
    letter-spacing: 0.4px;
}

/* Section Headings */
h2 {
    position: relative;
    margin: 60px 0 20px;
    padding-left: 20px;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 0.4px;
    background: linear-gradient(90deg, #e0e7ff, #93c5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Vertical Accent Line */
h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 70%;
    background: linear-gradient(180deg, #2563eb, #60a5fa);
    border-radius: 4px;
}

/* Sub-Section Headings */
h3 {
    font-size: 22px;
    margin: 40px 0 12px;
    font-weight: 600;
    color: #c7d2fe;
    letter-spacing: 0.3px;
    position: relative;
    padding-bottom: 6px;
}

/* Soft Underline */
h3::after {
    content: "";
    display: block;
    width: 44px;
    height: 2px;
    margin-top: 6px;
    background: linear-gradient(90deg, #2563eb, #60a5fa);
    border-radius: 2px;
}

/* =====================================================
   TEXT & LISTS
===================================================== */
p {
    margin-bottom: 22px;
    color: #cbd5f5;
}

ul {
    margin: 22px 0 32px 30px;
}

ul li {
    margin-bottom: 12px;
    color: #cbd5f5;
}

/* =====================================================
   LINKS
===================================================== */
a {
    color: #60a5fa;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* =====================================================
   HIGHLIGHT / CALLOUT BOX
===================================================== */
.highlight-box {
    background: linear-gradient(135deg, #020617, #020617);
    border-left: 6px solid #2563eb;
    padding: 26px 30px;
    margin: 45px 0;
    border-radius: 12px;
    box-shadow: inset 0 0 0 1px #1e293b;
}

/* =====================================================
   ADS
===================================================== */
.adsbygoogle {
    margin: 50px 0;
}

/* =====================================================
   FOOTER
===================================================== */
.footer-links {
    margin-top: 70px;
    padding-top: 30px;
    border-top: 1px solid #1e293b;
    text-align: center;
    font-size: 15px;
    color: #94a3b8;
}

.footer-links a {
    margin: 0 12px;
    color: #94a3b8;
    font-weight: 500;
}

.footer-links a:hover {
    color: #60a5fa;
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 768px) {
    .container {
        margin: 30px 16px;
        padding: 34px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 24px;
    }

    .nav {
        justify-content: center;
    }
}