/* =================================
   Project Brief
================================= */

.project-brief-box {
    width: 100%;
    max-width: 1050px;

    margin: 0 auto;
    padding: 42px;

    border: 1px solid var(--color-border);
    border-radius: 20px;

    background: rgba(255, 255, 255, 0.015);
}


/* =================================
   Header
================================= */

.brief-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;

    gap: 24px;

    padding-bottom: 28px;

    border-bottom: 1px solid var(--color-border);
}

.brief-header-content {
    min-width: 0;
}

.brief-header .section-eyebrow {
    display: block;
    margin-bottom: 10px;
}

.brief-header h1 {
    margin: 0;

    color: var(--color-text-primary);

    font-size: clamp(32px, 5vw, 46px);
    line-height: 1.1;
}

.brief-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;

    gap: 8px;

    margin-top: 14px;

    color: var(--color-text-secondary);

    font-size: 13px;
}

.brief-status {
    flex-shrink: 0;

    padding: 7px 11px;

    border: 1px solid rgba(90, 200, 130, 0.25);
    border-radius: 7px;

    background: rgba(90, 200, 130, 0.08);

    color: #72c98d;

    font-size: 12px;
}


/* =================================
   Sections
================================= */

.brief-section {
    padding: 32px 0;

    border-bottom: 1px solid var(--color-border);
}

.brief-section:last-of-type {
    border-bottom: none;
}

.brief-section-heading {
    display: flex;
    align-items: center;

    gap: 12px;

    margin-bottom: 22px;
}

.brief-section-number {
    width: 30px;
    height: 30px;

    display: flex;
    align-items: center;
    justify-content: center;

    flex-shrink: 0;

    border: 1px solid var(--color-border);
    border-radius: 50%;

    color: var(--color-accent);

    font-size: 11px;
    font-weight: 600;
}

.brief-section-heading h2 {
    margin: 0;

    color: var(--color-text-primary);

    font-size: 20px;
    line-height: 1.3;
}


/* =================================
   Information Grid
================================= */

.brief-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));

    gap: 14px;
}

.brief-item {
    display: flex;
    flex-direction: column;

    gap: 7px;

    padding: 17px 18px;

    border: 1px solid var(--color-border);
    border-radius: 10px;

    background: rgba(255, 255, 255, 0.015);
}

.brief-label {
    color: var(--color-text-secondary);

    font-size: 12px;
}

.brief-item strong {
    color: var(--color-text-primary);

    font-size: 14px;
    font-weight: 500;
}


/* =================================
   Text Content
================================= */

.brief-text-block {
    padding: 20px;

    border: 1px solid var(--color-border);
    border-radius: 10px;

    background: rgba(255, 255, 255, 0.015);
}

.brief-text-block h3 {
    margin: 0 0 8px;

    color: var(--color-text-primary);

    font-size: 15px;
}

.brief-text-block p {
    margin: 0;

    color: var(--color-text-secondary);

    font-size: 14px;
    line-height: 1.7;
}


/* =================================
   Features
================================= */

.brief-feature-list {
    display: flex;
    flex-direction: column;

    gap: 10px;
}

.brief-feature {
    display: flex;
    align-items: flex-start;

    gap: 14px;

    padding: 17px 18px;

    border: 1px solid var(--color-border);
    border-radius: 10px;

    background: rgba(255, 255, 255, 0.015);
}

.brief-feature-index {
    color: var(--color-accent);

    font-size: 11px;
    font-weight: 600;
}

.brief-feature h3 {
    margin: 0 0 5px;

    color: var(--color-text-primary);

    font-size: 14px;
}

.brief-feature p {
    margin: 0;

    color: var(--color-text-secondary);

    font-size: 13px;
    line-height: 1.6;
}


/* =================================
   Open Questions
================================= */

.brief-question-list {
    display: flex;
    flex-direction: column;

    gap: 9px;
}

.brief-question {
    display: flex;
    align-items: center;

    gap: 14px;

    padding: 15px 17px;

    border: 1px solid var(--color-border);
    border-radius: 9px;

    color: var(--color-text-secondary);

    font-size: 13px;
}

.brief-question span {
    color: var(--color-accent);

    font-size: 11px;
    font-weight: 600;
}


/* =================================
   Actions
================================= */

.brief-actions {
    display: flex;
    justify-content: flex-end;

    gap: 12px;

    padding-top: 28px;
}

.brief-actions .btn {
    min-height: 44px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 0 20px;

    text-decoration: none;
}


/* =================================
   Responsive
================================= */

@media (max-width: 700px) {

    .project-brief-box {
        padding: 28px 22px;
        border-radius: 16px;
    }

    .brief-header {
        flex-direction: column;
    }

    .brief-grid {
        grid-template-columns: 1fr;
    }

    .brief-actions {
        flex-direction: column;
    }

    .brief-actions .btn {
        width: 100%;
    }
}


@media (max-width: 450px) {

    .project-brief-box {
        padding: 24px 18px;
    }

    .brief-header h1 {
        font-size: 32px;
    }

    .brief-section {
        padding: 26px 0;
    }
}