@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

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

:root {
    --red: #c8201a;
    --red-dark: #9e1712;
    --red-light: #e8352e;
    --text: #1a1a1a;
    --text-muted: #666;
    --border: #e5e5e5;
    --bg: #ffffff;
    --bg-soft: #f9f9f9;
    --nav-w: 240px;
    --radius: 10px;
}

body {
    font-family: 'DM Sans', sans-serif;
    color: var(--text);
    background: var(--bg);
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ── */
nav {
    width: var(--nav-w);
    background: var(--bg-soft);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    overflow-y: auto;
    z-index: 10;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 18px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
}

.nav-logo img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: cover;
}

.nav-logo span {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.3px;
}

.nav-logo span em {
    color: var(--red);
    font-style: normal;
}

nav ul {
    list-style: none;
    padding: 12px 10px;
    flex: 1;
}

nav ul li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 7px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}

nav ul li a:hover { background: var(--border); color: var(--text); }
nav ul li a.active { background: var(--red); color: #fff; }
nav ul li a .icon { font-size: 15px; width: 20px; text-align: center; }

.nav-section {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #bbb;
    padding: 14px 18px 6px;
}

/* ── Main ── */
main {
    margin-left: var(--nav-w);
    flex: 1;
    padding: 48px 56px;
    max-width: 900px;
}

/* ── Hero ── */
.hero {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 40px;
}

.hero-logo {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(200,32,26,0.25);
}

.hero-text h1 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.hero-text h1 span { color: var(--red); }

.hero-text p {
    color: var(--text-muted);
    font-size: 15px;
    margin-top: 6px;
    line-height: 1.6;
}

/* ── Badges ── */
.badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.badge.red { background: var(--red); color: #fff; border-color: var(--red); }

/* ── Download btn ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.15s;
    cursor: pointer;
    border: none;
    font-family: inherit;
}
.btn-primary { background: var(--red); color: #fff; box-shadow: 0 4px 14px rgba(200,32,26,0.3); }
.btn-primary:hover { background: var(--red-light); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(200,32,26,0.35); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--bg-soft); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

/* ── Content ── */
h2 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.3px;
    margin: 36px 0 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

h3 { font-size: 16px; font-weight: 600; margin: 20px 0 8px; color: var(--text); }

p { font-size: 15px; line-height: 1.7; color: #444; margin-bottom: 12px; }

/* ── Cards ── */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin: 16px 0; }

.card {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    transition: box-shadow 0.15s;
}
.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.card-icon { font-size: 22px; margin-bottom: 8px; }
.card h3 { margin: 0 0 4px; font-size: 14px; }
.card p { font-size: 13px; color: var(--text-muted); margin: 0; }

/* ── Steps ── */
.steps { display: flex; flex-direction: column; gap: 0; margin: 16px 0; }
.step {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}
.step:last-child { border-bottom: none; }
.step-num {
    width: 28px; height: 28px;
    background: var(--red);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}
.step-body h3 { margin: 0 0 4px; font-size: 15px; }
.step-body p { margin: 0; font-size: 14px; color: var(--text-muted); }

/* ── Callout ── */
.callout {
    border-radius: var(--radius);
    padding: 14px 18px;
    margin: 16px 0;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 14px;
    line-height: 1.6;
}
.callout.warn { background: #fffbeb; border: 1px solid #fcd34d; color: #7c5e00; }
.callout.info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }
.callout.danger { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.callout-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* ── Code ── */
code {
    font-family: 'DM Mono', monospace;
    background: #f3f4f6;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
}

/* ── Table ── */
table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
th { text-align: left; padding: 10px 14px; background: var(--bg-soft); border-bottom: 2px solid var(--border); font-weight: 600; font-size: 13px; }
td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: #444; }
tr:hover td { background: var(--bg-soft); }

/* ── Footer ── */
footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: #bbb;
}