/* ---------- AZURE DESIGN TOKENS ---------- */
:root {
    --azure-primary: #2563eb;
    --azure-secondary: #38bdf8;
    --azure-dark: #0f172a;
    --azure-bg: #f5f7fb;
    --azure-card-shadow: rgba(37, 99, 235, 0.12);
}

/* ---------- CSS RESET ---------- */
* {
    box-sizing: border-box;
}

/* ---------- BASE ---------- */
body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--azure-bg);
    color: #1f2937;
    line-height: 1.65;
}

/* ---------- CONTAINER ---------- */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px;
}

/* ---------- HERO (AZURE ANCHOR) ---------- */
.hero {
    background: linear-gradient(135deg, var(--azure-primary), var(--azure-secondary));
    color: #ffffff;
    padding: 44px;
    border-radius: 18px;
    margin-bottom: 36px;
    box-shadow: 0 16px 40px rgba(37, 99, 235, 0.25);
}

.hero h1 {
    margin: 0 0 12px 0;
    font-size: 38px;
    color: #ffffff;
}

.hero p {
    font-size: 18px;
    max-width: 720px;
    color: #e0f2fe;
}

/* ---------- TYPOGRAPHY ---------- */
h1 {
    font-size: 36px;
    color: var(--azure-dark);
}

h2 {
    font-size: 28px;
    margin-top: 36px;
    margin-bottom: 12px;
    color: var(--azure-dark);
}

h3 {
    font-size: 20px;
    margin-top: 20px;
    margin-bottom: 6px;
}

p {
    font-size: 16px;
    margin-bottom: 12px;
}

/* ---------- LINKS ---------- */
a {
    color: var(--azure-primary);
    text-decoration: none;
    font-weight: 600;
}

a:hover {
    text-decoration: underline;
}

/* ---------- CARDS ---------- */
.card {
    background: #ffffff;
    border-radius: 14px;
    padding: 26px;
    margin-bottom: 26px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 10px 28px var(--azure-card-shadow);
}

/* ---------- TRACK CARDS ---------- */
.track-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 18px;
    border: 1px solid #e5e7eb;
    border-left: 6px solid var(--azure-primary);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.track-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.18);
}

.track-card h3 {
    margin-top: 0;
}

/* ---------- BUTTONS ---------- */
button {
    background: linear-gradient(180deg, #2563eb, #1d4ed8);
    color: #ffffff;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
}

button:hover {
    background: #1e40af;
}

/* ---------- PROGRESS ---------- */
progress {
    width: 100%;
    height: 18px;
    border-radius: 10px;
    overflow: hidden;
}

progress::-webkit-progress-bar {
    background-color: #e5e7eb;
    border-radius: 10px;
}

progress::-webkit-progress-value {
    background: linear-gradient(90deg, #2563eb, #38bdf8);
    border-radius: 10px;
}

/* ---------- BADGES ---------- */
.badge-success {
    font-size: 15px;
    background: linear-gradient(180deg, #ecfeff, #e0f2fe);
    border: 1px solid #38bdf8;
    padding: 18px;
    border-radius: 12px;
    margin: 24px 0;
    color: #0369a1;
    font-weight: 700;
}

/* ---------- LISTS ---------- */
ul, ol {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

/* ---------- FOOTER ---------- */
.footer {
    margin-top: 60px;
    padding-top: 22px;
    border-top: 1px solid #e5e7eb;
    font-size: 14px;
    color: #64748b;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {

    .hero {
        padding: 28px;
    }

    .hero h1 {
        font-size: 30px;
    }

    h2 {
        font-size: 24px;
    }

    .container {
        padding: 16px;
    }

    button {
        width: 100%;
    }
}