/* =========================================================
   PROJECTS.CSS
   خاص بصفحات المشاريع فقط:
   - projects.html (الشبكة + الفلاتر)
   - project1.html إلى project6.html (التفاصيل)
   ========================================================= */


/* =========================================================
   01. PROJECTS SECTION (projects.html)
========================================================= */

.projects-section {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}


/* =========================================================
   02. PROJECT FILTERS
   يستخدمها JS: .filter-btn
========================================================= */

.project-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 38px;
}

.filter-btn {
    min-height: 42px;
    padding: 7px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    background: var(--surface);
    font-weight: 700;
    cursor: pointer;
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
}

.filter-btn:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    border-color: var(--primary);
    color: #ffffff;
    background: var(--primary);
}


/* =========================================================
   03. PROJECT CARD
   يستخدمها JS: .project-card
========================================================= */

.project-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition);
    animation: cardIn 0.45s ease both;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(55, 118, 171, 0.35);
    box-shadow: var(--shadow-md);
}

.project-card.is-hidden {
    display: none;
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--bg-tertiary);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.06);
}

.project-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 24px;
}

.project-category {
    display: inline-block;
    margin-bottom: 9px;
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 800;
}

.project-content h3 {
    margin-bottom: 10px;
    font-size: 1.25rem;
    line-height: 1.5;
}

.project-content p {
    margin-bottom: 18px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ملاحظة: .project-tags هو الاسم الصحيح،
   و .project-tech موجود في index.html القديم — سيدعم الاثنين */
.project-tags,
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: auto;
    margin-bottom: 20px;
}

.project-tags span,
.project-tech span {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    font-size: 0.72rem;
    font-weight: 700;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--primary);
    font-size: 0.88rem;
    font-weight: 800;
    transition:
        gap var(--transition),
        color var(--transition);
}

.project-link:hover {
    gap: 12px;
    color: var(--primary-dark);
}


/* =========================================================
   04. PROJECT LIST NOTE (projects.html)
========================================================= */

.project-list-note {
    margin-top: 40px;
}


/* =========================================================
   05. PROJECT DETAIL HERO
========================================================= */

.project-detail-hero {
    padding-top: 160px;
    padding-bottom: 70px;
    background: radial-gradient(circle at 20% 30%, rgba(55, 118, 171, 0.10), transparent 35%);
}

.project-detail-header {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.project-detail-title {
    margin: 18px 0;
    font-size: clamp(2.2rem, 5vw, 4rem);
    line-height: 1.25;
}

.project-detail-intro {
    max-width: 760px;
    margin: 0 auto 28px;
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.project-detail-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 10px;
}


/* =========================================================
   06. PROJECT DETAIL IMAGE / COVER
========================================================= */

.project-detail-image {
    padding-top: 20px;
    padding-bottom: 60px;
}

.project-cover {
    overflow: hidden;
    max-width: 1050px;
    margin: 0 auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
}

.project-cover img {
    width: 100%;
    aspect-ratio: 16 / 8;
    object-fit: cover;
}


/* =========================================================
   07. PROJECT DETAIL CONTENT
========================================================= */

.project-detail-content {
    padding-top: 40px;
}


/* =========================================================
   08. SHARED ARTICLE COMPONENTS
   (مشتركة مع المقالات — موجودة هنا لتشغيل صفحات المشاريع)
========================================================= */

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
    gap: 50px;
}

.project-article,
.article-content {
    min-width: 0;
}

.article-section {
    padding: 35px 0;
    border-bottom: 1px solid var(--border);
}

.article-section:first-child {
    padding-top: 0;
}

.article-section:last-child {
    border-bottom: 0;
}

.article-section h2 {
    margin-bottom: 18px;
    font-size: clamp(1.55rem, 3vw, 2.15rem);
    line-height: 1.45;
}

.article-section h3 {
    margin-top: 22px;
    margin-bottom: 10px;
    font-size: 1.15rem;
}

.article-section p {
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.article-section strong {
    color: var(--text-primary);
}


/* =========================================================
   09. ARTICLE CALLOUT
========================================================= */

.article-callout {
    margin: 25px 0;
    padding: 20px 22px;
    border-right: 4px solid var(--primary);
    border-radius: var(--radius-md);
    background: rgba(55, 118, 171, 0.07);
}

.article-callout strong {
    display: block;
    margin-bottom: 5px;
    color: var(--primary);
}

.article-callout p {
    margin-bottom: 0;
}

.article-callout.warning {
    border-right-color: var(--accent);
    background: rgba(255, 138, 0, 0.07);
}

.article-callout.warning strong {
    color: var(--accent);
}


/* =========================================================
   10. ARTICLE LIST
========================================================= */

.article-list {
    margin: 18px 0;
    padding-right: 22px;
    list-style: none;
}

.article-list li {
    position: relative;
    margin-bottom: 9px;
    color: var(--text-secondary);
}

.article-list li::before {
    content: "•";
    position: absolute;
    right: -20px;
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 900;
}


/* =========================================================
   11. CODE BLOCK
========================================================= */

.code-block {
    position: relative;
    overflow-x: auto;
    margin: 22px 0;
    border: 1px solid #263247;
    border-radius: var(--radius-md);
    background: #0f172a;
    direction: ltr;
    text-align: left;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.code-block pre {
    margin: 0;
    padding: 22px;
    color: #e6edf6;
    font-family: "Cascadia Code", "Fira Code", Consolas, monospace;
    font-size: 0.84rem;
    line-height: 1.8;
    white-space: pre;
}

.code-block code {
    font-family: inherit;
}

/* دعم مباشر لـ pre > code بدون حاوية .code-block (يُستخدم في بعض المقالات) */
.article-content > pre,
.article-block > pre {
    overflow-x: auto;
    margin: 22px 0;
    padding: 22px;
    border: 1px solid #263247;
    border-radius: var(--radius-md);
    background: #0f172a;
    color: #e6edf6;
    font-family: "Cascadia Code", "Fira Code", Consolas, monospace;
    font-size: 0.84rem;
    line-height: 1.8;
    direction: ltr;
    text-align: left;
    white-space: pre;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.article-content > pre code,
.article-block > pre code {
    font-family: inherit;
    color: inherit;
    background: transparent;
    padding: 0;
}

/* Code inline داخل النص */
.article-section code,
.article-block code,
.article-content p code,
.article-content li code {
    padding: 2px 7px;
    border-radius: 5px;
    color: var(--primary);
    background: rgba(55, 118, 171, 0.10);
    font-family: "Cascadia Code", "Fira Code", Consolas, monospace;
    font-size: 0.88em;
    direction: ltr;
    unicode-bidi: embed;
}


/* =========================================================
   12. FEATURE GRID
========================================================= */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.feature-card {
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(55, 118, 171, 0.35);
    box-shadow: var(--shadow-md);
}

.feature-card h3 {
    margin: 0 0 8px;
    color: var(--text-primary);
    font-size: 1.05rem;
}

.feature-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.88rem;
}


/* =========================================================
   13. TECH LIST
========================================================= */

.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 18px;
}

.tech-tag {
    padding: 7px 13px;
    border: 1px solid rgba(55, 118, 171, 0.25);
    border-radius: var(--radius-full);
    color: var(--primary);
    background: rgba(55, 118, 171, 0.07);
    font-size: 0.82rem;
    font-weight: 700;
}


/* =========================================================
   14. TABLE WRAPPER + PROJECT TABLE
========================================================= */

.table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
}

.project-table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
    background: var(--surface);
}

.project-table th,
.project-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    text-align: right;
    font-size: 0.88rem;
}

.project-table th {
    color: var(--text-primary);
    background: var(--bg-secondary);
    font-weight: 800;
}

.project-table td {
    color: var(--text-secondary);
}

.project-table tr:last-child td {
    border-bottom: 0;
}


/* =========================================================
   15. LEARNING GRID
========================================================= */

.learning-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.learning-card {
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition:
        transform var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

.learning-card:hover {
    transform: translateY(-3px);
    border-color: rgba(55, 118, 171, 0.35);
    box-shadow: var(--shadow-sm);
}

.learning-card > span,
.learning-card-span {
    display: inline-flex;
    margin-bottom: 10px;
    color: var(--primary);
    font-weight: 900;
}

.learning-card h3 {
    margin: 0 0 6px;
    font-size: 1.05rem;
}

.learning-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.88rem;
}


/* =========================================================
   16. RELATED PROJECTS
========================================================= */

.related-projects {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.related-project-card {
    display: block;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    transition:
        transform var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

.related-project-card:hover {
    transform: translateY(-4px);
    border-color: rgba(55, 118, 171, 0.4);
    box-shadow: var(--shadow-sm);
}

.related-project-card > span {
    display: block;
    margin-bottom: 7px;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 800;
}

.related-project-card h3 {
    margin: 0 0 7px;
    font-size: 1rem;
}

.related-project-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.78rem;
}


/* =========================================================
   17. ARTICLE SIDEBAR + TOC
========================================================= */

.article-sidebar {
    position: sticky;
    top: 105px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-self: start;
}

.article-sidebar-card,
.article-sidebar-inner {
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.article-sidebar-card h2,
.article-sidebar-card h3,
.article-sidebar-inner h2,
.article-sidebar-inner h3 {
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.article-toc {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.article-toc a {
    padding: 8px 10px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast);
}

.article-toc a:hover {
    color: var(--primary);
    background: rgba(55, 118, 171, 0.08);
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.sidebar-tags span {
    padding: 5px 9px;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    font-size: 0.72rem;
    font-weight: 700;
}


/* =========================================================
   18. RESPONSIVE - LARGE TABLETS (≤1100px)
========================================================= */

@media (max-width: 1100px) {

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


/* =========================================================
   19. RESPONSIVE - TABLETS (≤900px)
========================================================= */

@media (max-width: 900px) {

    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}


/* =========================================================
   20. RESPONSIVE - MOBILE (≤650px)
========================================================= */

@media (max-width: 650px) {

    .projects-grid,
    .related-projects {
        grid-template-columns: 1fr;
    }

    .feature-grid,
    .learning-grid {
        grid-template-columns: 1fr;
    }

    .project-cover img {
        aspect-ratio: 16 / 10;
    }

    .project-detail-title {
        font-size: 2.15rem;
    }

    .project-detail-intro {
        font-size: 0.92rem;
    }

    .project-filters {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 7px;
        scrollbar-width: thin;
    }

    .filter-btn {
        flex: 0 0 auto;
    }

    .article-section {
        padding: 28px 0;
    }

    .article-sidebar {
        display: flex;
    }

    .code-block pre,
    .article-content > pre,
    .article-block > pre {
        padding: 17px;
        font-size: 0.75rem;
    }
}


/* =========================================================
   21. RESPONSIVE - VERY SMALL (≤400px)
========================================================= */

@media (max-width: 400px) {

    .project-cover img {
        aspect-ratio: 1 / 1;
    }
}