.installation-hero {

    min-height: 300px;

    display: flex;

    align-items: center;

    justify-content: center;

    text-align: center;

    background:
        linear-gradient(
            135deg,
            #0b3d91,
            #1565c0
        );

    color: white;

    padding: 60px 20px;

}


.installation-overlay {

    max-width: 850px;

}


.installation-icon {

    font-size: 42px;

    margin-bottom: 12px;

}


.installation-hero h1 {

    margin: 0 0 15px;

    font-size: 42px;

    font-weight: 700;

}


.installation-hero p {

    margin: 0;

    font-size: 18px;

    line-height: 1.7;

    opacity: .95;

}


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

.installation-page {

    background: #f5f8fc;

    padding: 50px 20px;

}


.installation-container {

    max-width: 1250px;

    margin: auto;

    display: grid;

    grid-template-columns: 270px 1fr;

    gap: 35px;

}


/* =========================
   SIDEBAR
========================= */

.installation-sidebar {

    background: white;

    border-radius: 12px;

    padding: 25px;

    height: fit-content;

    position: sticky;

    top: 100px;

    box-shadow:
        0 5px 25px rgba(0,0,0,.06);

}


.installation-sidebar h3 {

    margin-top: 0;

    color: #0b3d91;

    font-size: 19px;

    padding-bottom: 15px;

    border-bottom: 1px solid #e6edf5;

}


.installation-sidebar nav {

    display: flex;

    flex-direction: column;

    gap: 5px;

}


.installation-sidebar nav a {

    text-decoration: none;

    color: #49627b;

    padding: 10px 12px;

    border-radius: 7px;

    font-size: 14px;

    transition: .2s;

}


.installation-sidebar nav a:hover {

    background: #edf4ff;

    color: #0b3d91;

}


/* =========================
   CONTENT
========================= */

.installation-content {

    background: white;

    border-radius: 14px;

    padding: 45px;

    box-shadow:
        0 5px 25px rgba(0,0,0,.05);

}


.guide-section {

    padding-bottom: 45px;

    margin-bottom: 45px;

    border-bottom: 1px solid #e7edf4;

    scroll-margin-top: 100px;

}


.guide-section:last-child {

    border-bottom: none;

}


.section-label {

    display: inline-block;

    background: #eaf2ff;

    color: #1565c0;

    padding: 6px 12px;

    border-radius: 20px;

    font-size: 12px;

    font-weight: 600;

    margin-bottom: 12px;

}


.guide-section h2 {

    color: #173f67;

    margin-top: 0;

    margin-bottom: 15px;

    font-size: 27px;

}


.guide-section h3 {

    color: #214f77;

    margin-bottom: 8px;

}


.guide-section p {

    color: #596f85;

    line-height: 1.75;

}


/* =========================
   INFO BOXES
========================= */

.info-box,
.warning-box,
.success-box {

    margin-top: 25px;

    padding: 20px 22px;

    border-radius: 9px;

}


.info-box {

    background: #eef6ff;

    border-left: 4px solid #1565c0;

}


.warning-box {

    background: #fff8e7;

    border-left: 4px solid #e5a100;

}


.success-box {

    background: #edf9f1;

    border-left: 4px solid #28a745;

}


.info-box p,
.warning-box p,
.success-box p {

    margin-bottom: 0;

}


/* =========================
   REQUIREMENTS
========================= */

.requirements-grid {

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 18px;

    margin-top: 25px;

}


.requirement-card {

    background: #f7faff;

    border: 1px solid #e3ebf5;

    border-radius: 10px;

    padding: 20px;

}


.requirement-card h3 {

    margin-top: 0;

    font-size: 17px;

}


.requirement-card ul {

    padding-left: 20px;

    color: #5d7286;

    line-height: 1.9;

}


/* =========================
   STEPS
========================= */

.step {

    display: flex;

    gap: 18px;

    margin-top: 25px;

    padding: 20px;

    background: #f8fbff;

    border: 1px solid #e5edf6;

    border-radius: 10px;

}


.step-number {

    min-width: 38px;

    height: 38px;

    display: flex;

    align-items: center;

    justify-content: center;

    border-radius: 50%;

    background: #1565c0;

    color: white;

    font-weight: 700;

}


.step h3 {

    margin-top: 0;

}


.step p {

    margin-bottom: 0;

}


/* =========================
   TROUBLESHOOTING
========================= */

.troubleshooting-item {

    padding: 18px 20px;

    margin-top: 15px;

    border: 1px solid #e5edf6;

    border-radius: 9px;

}


.troubleshooting-item h3 {

    margin-top: 0;

}


/* =========================
   SUPPORT
========================= */

.guide-support {

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 25px;

    padding: 25px;

    background: #eef5ff;

    border-radius: 12px;

}


.guide-support h2 {

    margin-top: 0;

    color: #173f67;

}


.guide-support p {

    margin-bottom: 0;

    color: #5b7085;

}


.guide-support a {

    flex-shrink: 0;

    background: #1565c0;

    color: white;

    text-decoration: none;

    padding: 12px 20px;

    border-radius: 7px;

    font-weight: 600;

}


.guide-support a:hover {

    background: #0b3d91;

}


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 900px) {

    .installation-container {

        grid-template-columns: 1fr;

    }


    .installation-sidebar {

        position: static;

    }


    .installation-sidebar nav {

        display: grid;

        grid-template-columns:
            repeat(2, 1fr);

    }


    .requirements-grid {

        grid-template-columns: 1fr;

    }

}


@media (max-width: 600px) {

    .installation-hero h1 {

        font-size: 30px;

    }


    .installation-hero p {

        font-size: 16px;

    }


    .installation-content {

        padding: 25px 20px;

    }


    .installation-sidebar nav {

        grid-template-columns: 1fr;

    }


    .guide-support {

        flex-direction: column;

        align-items: flex-start;

    }

}