/* ========================================
   Light Theme
   ======================================== */

:root {
    --bg: #ffffff;
    --surface: #f8fafc;
    --sidebar-bg: #f7efef;
    --sidebar-bg: #f7efef;
    --text: #0f172a;
    --muted: #6b7280;
    --primary: #68217a;
    --primary-contrast: #ffffff;
    --accent: #0d6efd;
    --accent-hover: rgba(13, 110, 253, .08);
    --accent-active: rgba(13, 110, 253, .12);
    --border: #e6dbdb;
    --sidebar-hover: #f3e8e8;
    --sidebar-link: #0b66b2;
    --ink: #f5f7fa;
    --ink-2: #eef2f6;
    --panel: #ffffff;
    --line: rgba(16,29,49,0.10);
    --domain: #b8860f; /* هسته / گرایش و باور */
    --application: #128882; /* تجربه عملی */
    --infrastructure: #2c5f94; /* مهارت‌های فنی */
    --api: #1b2a3d; /* خدمات رو به بیرون */
    --text-1: #101d31;
    --text-2: #4a5a70;
    --text-3: #7d8ba0;
}

/* ========================================
   Global
   ======================================== */

html,
body {
    background: var(--bg);
    color: var(--text);
    scroll-behavior: smooth;
}

.brand span {
    color: #f5bf3e !important;
}
.offcanvas {
    background-color: var( --sidebar-bg);
}

small,
.text-muted {
    color: var(--muted);
}

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

header,
.header {
    background: var(--primary);
    color: var(--primary-contrast);
}

.navbar-brand,
.nav-link,
.nav-link:hover,
.social-icon {
    color: var(--primary-contrast);
}

.modal-content {
    color: var(--text);
    background-color: var(--bg);
}


/* ========================================
   Hero
    /* ---------- Hero ---------- */

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-size: .75rem;
    color: var(--text-3);
    text-transform: uppercase;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .35rem .9rem;
    margin-bottom: 1.5rem;
}

    .eyebrow::before {
        content: '';
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--application);
        box-shadow: 0 0 8px var(--application);
    }

.hero h1 {
    font-weight: 800;
    font-size: clamp(2.1rem, 4vw, 3.2rem);
    line-height: 1.35;
    letter-spacing: -.01em;
}

    .hero h1 .accent {
        color: var(--domain);
    }

.hero p.lead-text {
    color: var(--text-2);
    font-size: 1.05rem;
    line-height: 2.1;
    max-width: 46rem;
}

======================================== */

.hero .accent {
    color: var(--domain);
}

.hero-title,
.hero-text {
    color: var(--text);
}

/* ========================================
   Buttons
   ======================================== */

.btn-primary-custom {
    background: var(--primary);
    color: var(--primary-contrast);
    border: 1px solid rgb(0 0 0 / 5%);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--primary);
    color: var(--primary-contrast);
}

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

.content {
    background: var(--surface);
    color: var(--text);
}

/* ========================================
   Dropdown
   ======================================== */

.dropdown-menu {
    background: rgb(255 255 255 / 98%);
    color: var(--text);
}

/* ========================================
   Sidebar
   ======================================== */

.sidebar-fixed {
    background: var(--sidebar-bg);
    color: var(--text);
}

.sidebar {
    border: 1px solid var(--border);
}

sidebar-header {
    background-color: #bdd3e7;
}

.accordion-button {
    background: transparent;
    color: var(--text);
    border: none;
}

    .accordion-button:not(.collapsed) {
        background: var(--sidebar-hover);
    }

.accordion-body {
    background: transparent;
}

    .accordion-body a {
        color: var(--sidebar-link);
        text-decoration: none;
    }

/* ========================================
   Sidebar Navigation
   ======================================== */

.sidebar-item {
    color: #555;
    border-radius: .5rem;
    transition: .2s ease;
}

    .sidebar-item:hover {
        color: var(--accent);
        background: var(--accent-hover);
    }

    .sidebar-item.active {
        color: var(--accent);
        font-weight: 600;
        background: var(--accent-active);
    }

/* ========================================
   Accordion / Header Dropdown
   ======================================== */

header .dropdown-menu,
.accordion-collapse,
.accordion-collapse.collapsing,
.accordion-collapse.show,
.accordion-collapse.collapse.show,
.accordion-button.collapsed {
    background: var(--sidebar-bg);
    color: var(--text);
}

/* ========================================
   Tabs
   ======================================== */

#tabs .nav-link {
    color: #34475b;
}

/* ========================================
   Carousel
   ======================================== */

.carousel-control-prev-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.carousel-control-next-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");
}

/*--------------------------------------*/
.about {
    padding: 6rem 0 4rem;
    position: relative;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-size: .75rem;
    color: var(--text-3);
    text-transform: uppercase;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .35rem .9rem;
    margin-bottom: 1.5rem;
}

    .eyebrow::before {
        content: '';
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--application);
        box-shadow: 0 0 8px var(--application);
    }

.about h1 {
    font-weight: 800;
    font-size: clamp(2.1rem, 4vw, 3.2rem);
    line-height: 1.35;
    letter-spacing: -.01em;
}

    .about h1 .accent {
        color: var(--domain);
    }

.about p.lead-text {
    color: var(--text-2);
    font-size: 1.05rem;
    line-height: 2.1;
    max-width: 46rem;
}

/* ---------- Rings (signature element) ---------- */
.rings-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .rings-wrap svg {
        width: 100%;
        height: auto;
        max-width: 420px;
    }

.ring {
    fill: none;
    stroke-width: 1.5;
    opacity: .9;
}

.ring-label {
    font-size: 10px;
    letter-spacing: .12em;
}

.ring-core-fill {
    fill: rgba(184,134,15,0.10);
    transition: opacity .3s;
}

@keyframes rotateSlow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes rotateSlowRev {
    from {
        transform: rotate(360deg);
    }

    to {
        transform: rotate(0deg);
    }
}

.spin-a {
    transform-origin: 210px 210px;
    animation: rotateSlow 60s linear infinite;
}

.spin-b {
    transform-origin: 210px 210px;
    animation: rotateSlowRev 46s linear infinite;
}

.spin-c {
    transform-origin: 210px 210px;
    animation: rotateSlow 34s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
    .spin-a, .spin-b, .spin-c {
        animation: none;
    }
}

/* ---------- Layer sections (bio as onion layers) ---------- */
.layer-section {
    padding: 2.6rem 0;
    border-top: 1px solid var(--line);
}

.layer-row {
    display: flex;
    gap: 1.75rem;
    align-items: flex-start;
}

.layer-marker {
    flex: none;
    width: 3.1rem;
    height: 3.1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 600;
    border: 1.5px solid var(--line);
}

.layer-title {
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: .5rem;
}

.layer-tag {
    font-size: .68rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: .35rem;
    display: block;
}

.layer-text {
    color: var(--text-2);
    line-height: 2.1;
    font-size: .98rem;
}

.l-domain .layer-marker {
    color: var(--domain);
    border-color: rgba(232,184,75,.35);
    background: rgba(232,184,75,.06);
}

.l-domain .layer-tag {
    color: var(--domain);
}

.l-application .layer-marker {
    color: var(--application);
    border-color: rgba(44,166,164,.35);
    background: rgba(44,166,164,.06);
}

.l-application .layer-tag {
    color: var(--application);
}

.l-infrastructure .layer-marker {
    color: var(--infrastructure);
    border-color: rgba(59,130,196,.35);
    background: rgba(59,130,196,.06);
}

.l-infrastructure .layer-tag {
    color: var(--infrastructure);
}

.l-api .layer-marker {
    color: var(--api);
    border-color: rgba(27,42,61,.25);
    background: rgba(27,42,61,.05);
}

.l-api .layer-tag {
    color: var(--api);
}

/* ---------- Services ---------- */
.services {
    padding: 5rem 0;
    background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015) 20%, transparent 90%);
}

.section-head {
    margin-bottom: 3rem;
}

    .section-head .layer-tag {
        color: var(--infrastructure);
    }

    .section-head h2 {
        font-weight: 800;
        font-size: clamp(1.5rem,2.6vw,2.1rem);
    }

.svc-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1.6rem 1.5rem;
    height: 100%;
    transition: transform .25s ease, border-color .25s ease, background .25s ease;
    position: relative;
    overflow: hidden;
}

    .svc-card::before {
        content: '';
        position: absolute;
        inset: 0;
        opacity: 0;
        transition: opacity .25s ease;
        background: radial-gradient(220px 120px at 20% 0%, rgba(44,166,164,.14), transparent 70%);
    }

    .svc-card:hover {
        transform: translateY(-4px);
        border-color: rgba(44,166,164,.35);
    }

        .svc-card:hover::before {
            opacity: 1;
        }

.svc-num {
    font-size: .75rem;
    color: var(--text-3);
    margin-bottom: .9rem;
    display: block;
}

.svc-title {
    font-weight: 700;
    font-size: 1.02rem;
    margin-bottom: .5rem;
    position: relative;
}

.svc-desc {
    color: var(--text-2);
    font-size: .9rem;
    line-height: 1.9;
    position: relative;
}

/* ---------- CTA ---------- */
.cta-block {
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    text-align: center;
    background: radial-gradient(500px 260px at 50% -20%, rgba(232,184,75,0.10), transparent 70%), var(--panel);
}

    .cta-block h3 {
        font-weight: 800;
        font-size: clamp(1.4rem,2.4vw,1.9rem);
        margin-bottom: 1rem;
    }

    .cta-block p {
        color: var(--text-2);
        max-width: 34rem;
        margin: 0 auto 1.8rem;
        line-height: 2;
    }

.btn-gold {
    background: var(--domain);
    color: #221a05;
    font-weight: 700;
    border: none;
    border-radius: 10px;
    padding: .75rem 1.9rem;
    transition: transform .2s ease, box-shadow .2s ease;
}

    .btn-gold:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 24px rgba(232,184,75,.25);
        color: #221a05;
    }

.btn-outline-soft {
    border: 1px solid var(--line);
    color: var(--text-1);
    border-radius: 10px;
    padding: .75rem 1.9rem;
    font-weight: 600;
    background: transparent;
    transition: .2s ease;
}

    .btn-outline-soft:hover {
        border-color: var(--application);
        color: var(--text-1);
        background: rgba(44,166,164,.08);
    }

footer {
    /*    padding: 2.5rem 0;
*/ border-top: 1px solid var(--line);
    color: var(--text-3);
}

/* reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .6s ease, transform .6s ease;
}

    .reveal.in {
        opacity: 1;
        transform: translateY(0);
    }

/* ---------- Contact ---------- */
.contact-grid {
    display: flex;
    flex-wrap: wrap;
    gap: .9rem;
    justify-content: center;
    padding-top: 1.6rem;
    border-top: 1px solid var(--line);
    margin-top: .5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: .7rem;
    text-decoration: none;
    color: var(--text-1);
    background: var(--ink);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: .65rem 1.1rem;
    transition: transform .2s ease, border-color .2s ease;
}

    .contact-item:hover {
        transform: translateY(-2px);
        color: var(--text-1);
    }

.contact-icon {
    flex: none;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .contact-icon svg {
        width: 16px;
        height: 16px;
    }

.contact-label {
    display: block;
    font-size: .62rem;
    letter-spacing: .14em;
    color: var(--text-3);
}

.contact-value {
    display: block;
    font-size: .85rem;
    font-weight: 600;
}

.c-email .contact-icon {
    color: var(--domain);
    background: rgba(184,134,15,.10);
    border: 1px solid rgba(184,134,15,.3);
}

.c-email:hover {
    border-color: rgba(184,134,15,.4);
}

.c-telegram .contact-icon {
    color: var(--infrastructure);
    background: rgba(44,95,148,.10);
    border: 1px solid rgba(44,95,148,.3);
}

.c-telegram:hover {
    border-color: rgba(44,95,148,.4);
}

.c-github .contact-icon {
    color: var(--api);
    background: rgba(27,42,61,.06);
    border: 1px solid rgba(27,42,61,.18);
}

.c-github:hover {
    border-color: rgba(27,42,61,.35);
}

.c-linkedin .contact-icon {
    color: #0A66C2;
    background: #d3e6f9;
    border: 1px solid #0A66C2;
}

.c-linkedin:hover {
    border-color: rgba(18,136,130,.4);
}

/* reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .6s ease, transform .6s ease;
}

    .reveal.in {
        opacity: 1;
        transform: translateY(0);
    }

/* ======================================================================
     Homepage — rotator, value props, categories, articles
     ====================================================================== */
.rotator {
    display: inline-block;
}

.rotator-word {
    color: var(--domain);
    display: inline-block;
    transition: opacity .35s ease, transform .35s ease;
}

    .rotator-word.swap {
        opacity: 0;
        transform: translateY(6px);
    }

.value-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 1.8rem 1.6rem;
    height: 100%;
}

.value-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.1rem;
}

.value-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: .5rem;
}

.value-text {
    color: var(--text-2);
    font-size: .9rem;
    line-height: 1.9;
}

.v-domain .value-icon {
    color: var(--domain);
    background: rgba(184,134,15,.10);
}

.v-application .value-icon {
    color: var(--application);
    background: rgba(18,136,130,.10);
}

.v-infrastructure .value-icon {
    color: var(--infrastructure);
    background: rgba(44,95,148,.10);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.category-card {
    display: flex;
    flex-direction: column;
    gap: .6rem;
    text-decoration: none;
    color: var(--text-1);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1.4rem 1.3rem;
    transition: transform .2s ease, border-color .2s ease;
}

    .category-card:hover {
        transform: translateY(-4px);
        border-color: rgba(184,134,15,.35);
        color: var(--text-1);
    }

.category-name {
    font-weight: 700;
    font-size: 1rem;
}

.category-count {
    color: var(--text-3);
    font-size: .68rem;
    letter-spacing: .1em;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.article-card {
    display: flex;
    flex-direction: column;
    gap: .85rem;
    text-decoration: none;
    color: var(--text-1);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    transition: transform .2s ease, border-color .2s ease;
}

    .article-card:hover {
        transform: translateY(-4px);
        border-color: rgba(184,134,15,.3);
        color: var(--text-1);
    }

.article-tag {
    align-self: flex-start;
    font-size: .62rem;
    letter-spacing: .1em;
    padding: .3rem .65rem;
    border-radius: 999px;
    border: 1px solid var(--line);
}

    .article-tag.t-domain {
        color: var(--domain);
        background: rgba(184,134,15,.08);
        border-color: rgba(184,134,15,.3);
    }

    .article-tag.t-application {
        color: var(--application);
        background: rgba(18,136,130,.08);
        border-color: rgba(18,136,130,.3);
    }

    .article-tag.t-infrastructure {
        color: var(--infrastructure);
        background: rgba(44,95,148,.08);
        border-color: rgba(44,95,148,.3);
    }

.article-title {
    font-weight: 700;
    font-size: 1.02rem;
    line-height: 1.7;
}

.article-desc {
    color: var(--text-2);
    font-size: .87rem;
    line-height: 1.9;
}

.article-meta {
    display: flex;
    gap: .7rem;
    color: var(--text-3);
    font-size: .72rem;
    margin-top: auto;
    padding-top: .8rem;
    border-top: 1px solid var(--line);
}

.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .6s ease, transform .6s ease;
}

    .reveal.in {
        opacity: 1;
        transform: translateY(0);
    }


/* ======================================================================
   Article Page (single post)
   ====================================================================== */

.post-meta {
    color: var(--text-3);
    font-size: .85rem;
}

    .post-meta .dot::before {
        content: "•";
        margin: 0 .5rem;
        opacity: .5;
    }

.article-container h2 {
    font-weight: 700;
    margin-top: 3rem;
    padding-inline-start: .9rem;
    border-inline-start: 4px solid var(--application);
}

.article-container h3 {
    font-weight: 700;
    color: var(--domain);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-container strong {
    color: var(--domain);
    font-weight: 700;
}

.article-container hr {
    border-color: var(--line);
    opacity: 1;
    margin: 3rem 0;
}

/* Comparison table */
.compare-table {
    --bs-table-bg: var(--panel);
    --bs-table-color: var(--text-1);
    --bs-table-border-color: var(--line);
    border-radius: 14px;
    overflow: hidden;
}

    .compare-table thead {
        background: rgba(18,136,130,.08);
    }

        .compare-table thead th {
            color: var(--application);
            font-weight: 700;
            border-bottom: 2px solid var(--line);
        }

/* Callout / note box */
.callout-box {
    background: linear-gradient(135deg, rgba(44,95,148,.06), rgba(18,136,130,.06));
    border: 1px solid var(--line);
    border-inline-start: 4px solid var(--infrastructure);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    color: var(--text-2);
}

/* Inline code + code panel */
.article-container code {
    background: rgba(184,134,15,.10);
    color: var(--domain);
    padding: .15rem .4rem;
    border-radius: 5px;
    font-family: 'JetBrains Mono', monospace;
    font-size: .85em;
}

.code-panel {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    color: var(--application);
    direction: ltr;
    text-align: left;
    font-family: 'JetBrains Mono', monospace;
    overflow-x: auto;
}

/* Bullet-style service list (e.g. list of microservices) */
.service-list-group {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
}

    .service-list-group .list-group-item {
        background: transparent;
        border-color: var(--line);
        color: var(--text-1);
        font-family: 'JetBrains Mono', monospace;
        font-size: .85rem;
    }

        .service-list-group .list-group-item span {
            color: var(--text-3);
            font-family: 'vazir', sans-serif;
        }

.article-footer-note {
    color: var(--text-3);
    font-style: italic;
    border-top: 1px solid var(--line);
    padding-top: 1.5rem;
    margin-top: 2rem;
}