/* ==========================================================
   LINUX PAGE
========================================================== */

/* HERO */

.linux-hero{

    background:linear-gradient(135deg,#07131f,#10283d);

    color:#fff;

    padding:90px 20px;

}

.linux-hero-grid{

    display:grid;

    grid-template-columns:1fr 1fr;

    gap:60px;

    align-items:center;

}

.linux-hero img{

    width:100%;

    max-width:650px;

    display:block;

    margin:auto;

}

.linux-hero h1{

    font-size:58px;

    line-height:1.15;

    margin-bottom:25px;

}

.linux-hero p{

    font-size:22px;

    line-height:1.8;

    color:#d7d7d7;

    margin-bottom:40px;

}

.hero-badge{

    display:inline-block;

    background:#16c47f;

    color:#fff;

    padding:8px 18px;

    border-radius:25px;

    margin-bottom:25px;

    font-size:14px;

    font-weight:bold;

}

/* ==========================================================
   LINUX TOPICS
========================================================== */

.linux-topics{

    padding:90px 20px;

    background:#f8fafc;

}

.linux-topics h2{

    text-align:center;

    margin-bottom:20px;

}

.section-intro{

    max-width:850px;

    margin:0 auto 60px;

    text-align:center;

    font-size:18px;

    color:#666;

    line-height:1.8;

}

.topics-grid{

    display:grid;

    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));

    gap:35px;

}

.topic-card{

    background:#fff;

    border-radius:14px;

    overflow:hidden;

    box-shadow:0 10px 30px rgba(0,0,0,.08);

    transition:.3s;

}

.topic-card:hover{

    transform:translateY(-8px);

}

.topic-card img{

    width:100%;

    height:220px;

    object-fit:cover;

}

.topic-card h3{

    padding:25px 25px 15px;

    color:#10283d;

}

.topic-card p{

    padding:0 25px 20px;

    color:#555;

    line-height:1.8;

}

.topic-card a{

    display:block;

    padding:0 25px 30px;

    text-decoration:none;

    color:#16c47f;

    font-weight:bold;

}

/* ==========================================================
   FEATURED TUTORIALS
========================================================== */

.featured-linux{

    padding:90px 20px;

}

.tutorial-grid{

    display:grid;

    grid-template-columns:repeat(auto-fit,minmax(300px,1fr));

    gap:35px;

}

.tutorial-card{

    background:#fff;

    border-radius:12px;

    overflow:hidden;

    box-shadow:0 10px 25px rgba(0,0,0,.08);

    transition:.3s;

}

.tutorial-card:hover{

    transform:translateY(-6px);

}

.tutorial-card img{

    width:100%;

    height:220px;

    object-fit:cover;

}

.tutorial-card h3{

    padding:25px 25px 15px;

}

.tutorial-card p{

    padding:0 25px 20px;

    line-height:1.8;

    color:#555;

}

.tutorial-card a{

    display:block;

    padding:0 25px 30px;

    color:#16c47f;

    text-decoration:none;

    font-weight:bold;

}

/* ==========================================================
   ROADMAP
========================================================== */

.linux-roadmap{

    background:#eef5fb;

    padding:90px 20px;

}

.roadmap-grid{

    display:grid;

    grid-template-columns:repeat(auto-fit,minmax(240px,1fr));

    gap:30px;

}

.roadmap-card{

    background:#fff;

    border-radius:12px;

    padding:35px;

    text-align:center;

    box-shadow:0 10px 25px rgba(0,0,0,.08);

}

.roadmap-number{

    width:70px;

    height:70px;

    border-radius:50%;

    background:#16c47f;

    color:#fff;

    display:flex;

    justify-content:center;

    align-items:center;

    font-size:30px;

    font-weight:bold;

    margin:0 auto 25px;

}

/* ==========================================================
   LINUX TOOLS
========================================================== */

.linux-tools{

    padding:90px 20px;

}

.tools-grid{

    display:grid;

    grid-template-columns:repeat(auto-fit,minmax(240px,1fr));

    gap:30px;

}

.tool-card{

    background:#fff;

    border-radius:12px;

    padding:35px;

    text-align:center;

    box-shadow:0 10px 25px rgba(0,0,0,.08);

    transition:.3s;

}

.tool-card:hover{

    transform:translateY(-6px);

}

.tool-icon{

    font-size:50px;

    margin-bottom:20px;

}

/* ==========================================================
   WHY LEARN LINUX
========================================================== */

.linux-benefits{

    background:#f8fafc;

    padding:90px