@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
    /* LIGHT THEME (Slate-based, matches app's Light Theme) */
    --bg-primary: #f8fafc;     /* slate-50 */
    --bg-secondary: #ffffff;   /* white */
    --bg-tertiary: #f1f5f9;    /* slate-100 */
    --text-primary: #0f172a;   /* slate-900 */
    --text-secondary: #475569; /* slate-600 */
    --text-tertiary: #94a3b8;  /* slate-400 */
    --border-color: #e2e8f0;   /* slate-200 */
    --accent-primary: #2563eb; /* blue-600 */
    --accent-secondary: #4f46e5; /* indigo-600 */
    
    --card-bg: #ffffff;
    --card-hover: #f8fafc;
    
    --win-color: #3fb950;
    --loss-color: #f85149;
    --gold-color: #d29922;

    --max-width: 800px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, system-ui, sans-serif;
    font-size: 18px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-primary); text-decoration: none; transition: 0.2s; }
a:hover { color: var(--accent-secondary); text-decoration: none; }

/* HEADER */
header.blog-header {
    height: 70px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.logo-container img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.nav-cta {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    padding: 0.6rem 1.25rem;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.95rem;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
    color: white;
}

/* HERO SECTION */
.hero {
    padding: 5rem 2rem 4rem;
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
}

.hero-tag {
    display: inline-block;
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

h1 {
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 2.5rem;
}

/* ARTICLE CONTENT */
article {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem 6rem;
}

p { margin-bottom: 1.5rem; color: var(--text-secondary); }

h2 {
    font-size: 2rem;
    font-weight: 800;
    margin: 3.5rem 0 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 2.5rem 0 1rem;
    color: var(--text-primary);
}

strong { color: var(--text-primary); font-weight: 600; }

/* CALLOUTS */
.callout {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-primary);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
}

.callout-label {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.callout.green { border-left-color: var(--win-color); }
.callout.green .callout-label { color: var(--win-color); }

.callout.gold { border-left-color: var(--gold-color); }
.callout.gold .callout-label { color: var(--gold-color); }

/* GRID/CARDS */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2.5rem 0;
}

.blog-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.2s ease;
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.card-title {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-tertiary);
    line-height: 1.5;
}

/* LISTS */
.steps { list-style: none; margin: 2rem 0; }
.steps li {
    display: flex; gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    margin-bottom: 1rem;
}

.step-num {
    width: 36px; height: 36px;
    background: var(--accent-primary);
    color: white;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; flex-shrink: 0;
}

.step-body h4 { font-weight: 700; margin-bottom: 0.4rem; font-size: 1.1rem; }
.step-body p { margin: 0; font-size: 1rem; }

/* FOOTER */
footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 2rem;
    text-align: center;
    background: var(--bg-secondary);
}

footer p { margin-bottom: 1rem; font-size: 0.95rem; }
footer a { color: var(--text-tertiary); margin: 0 0.5rem; }
footer a:hover { color: var(--accent-primary); }

/* RESPONSIVE */
@media (max-width: 640px) {
    header.blog-header { padding: 0 1rem; }
    .logo-text { font-size: 1.25rem; }
    .hero { padding: 3rem 1.5rem 2rem; }
    article { padding: 0 1.5rem 4rem; }
    .steps li { padding: 1rem; }
}