/* Theme Invariant */
:root {
    --content-max-width: 1000px;
    --btn-transition-duration: 0.25s;
}

/* LIGHT Theme */
:root {
    --primary-bg-color: #17181E;
    --secondary-bg-color: #202023;
    --primary-text-color: #EEE;
    --page-bg-color: #666;

    /* POST */
    --post-bg-color: #999;
    --post-text-color: #111;
    /* POST */

    /* BUTTONS */
    --btn-bg-color: hsl(268, 87%, 9%);
    --btn-bg-color-hover: hsl(268, 92%, 14%);
    --btn-text-color: var(--primary-text-color);
    --btn-text-color-hover: #FFF;
    --btn-border-color: hsl(268, 87%, 34%);
    --btn-border-color-hover: hsl(268, 87%, 50%);
    /* BUTTONS */

    /* CODE */
    --inline-code-bg-color: #888;
    --block-code-bg-color: #222;
    /* CODE */

    --figcaption-color: #222;
    --menu-item-border-color: #37383E;

    --a-color-on-dark: #08E;
    --a-color-hover-on-dark: #39F;
}

@font-face {
    font-family: Vazir;
    src: url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Regular-WOL.woff2') format('woff2'),
        url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Regular-WOL.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: Vazir;
    src: url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Bold-WOL.woff2') format('woff2'),
        url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Bold-WOL.woff') format('woff');
    font-weight: bold;
    font-style: normal;
}

@font-face {
    font-family: Vazir;
    src: url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Black-WOL.woff2') format('woff2'),
        url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Black-WOL.woff') format('woff');
    font-weight: 900;
    font-style: normal;
}

@font-face {
    font-family: Vazir;
    src: url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Medium-WOL.woff2') format('woff2'),
        url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Medium-WOL.woff') format('woff');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: Vazir;
    src: url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Light-WOL.woff2') format('woff2'),
        url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Light-WOL.woff') format('woff');
    font-weight: 300;
    font-style: normal;
}

@font-face {
    font-family: Vazir;
    src: url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Thin-WOL.woff2') format('woff2'),
        url('../fonts/vazir-font-v30.1.0/Without-Latin/Vazir-Thin-WOL.woff') format('woff');
    font-weight: 100;
    font-style: normal;
}

html {
    line-height: 1.8;
    font-family: Vazir, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

h1 {
    margin: 0;
}

.container {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.btn {
    border: 1px solid var(--btn-border-color);
    color: var(--btn-text-color);
    background-color: var(--btn-bg-color);

    transition: color ease var(--btn-transition-duration);
    transition: border-color ease var(--btn-transition-duration);
    transition: background-color ease var(--btn-transition-duration);

    display: inline-block;
    text-align: center;
    text-decoration: none;

    font-size: 0.95rem;
    font-weight: normal;
}

.btn:hover {
    border-color: var(--btn-border-color-hover);
    color: var(--btn-text-color-hover);
    background-color: var(--btn-bg-color-hover);
    font-weight: bold;
}

.tac {
    text-align: center;
}

.p1 {
    padding: 1rem;
}

/* SITE-HEADER and SITE-FOOTER */

#site-header {
    background-color: var(--primary-bg-color);
    font-size: 1rem;
    text-align: center;
}

#site-header a {
    line-height: 3.1;
    display: block;
    color: var(--primary-text-color);
    text-decoration: none;
    white-space: nowrap;
}

#site-header a:hover {
    font-weight: bold;
}

#site-header a.menu-item {
    border-top: 1px solid var(--menu-item-border-color);
    padding: 0 1rem;
}

#site-header #logo span {
    background-image: url('/images/embedentry.gif');
    background-position: 0.3rem center;
    background-repeat: no-repeat;
    background-size: 1.5rem;
    padding-left: 2.1rem;
    padding-right: 1rem;
}

@media only screen and (min-width: 350px) {
    #site-header {
        text-align: initial;
    }

    #site-header .container {
        display: flex;
        justify-content: space-between;
    }

    #site-header a.menu-item {
        border: none;
    }
}

@media only screen and (min-width: 1024px) {
    #site-header #logo span {
        background-position-x: 0;
        background-size: 2rem;
        padding-left: 2.3rem;
        font-size: 1.3rem;
    }

    #site-header a.menu-item {
        font-size: 1.1rem;
        line-height: 3.6;
        padding-right: 0;
    }
}

#consulting-services {
    background-color: var(--secondary-bg-color);
    color: var(--primary-text-color);
    font-size: 1.03rem;
}

#consulting-services h2 {
    margin: 0.5rem 0 1rem 0;
}

#consulting-services a {
    color: var(--a-color-on-dark);
}

#consulting-services a:hover {
    color: var(--a-color-hover-on-dark);
}

#copy-notice {
    background-color: var(--primary-bg-color);
    color: var(--primary-text-color);
    text-align: center;
    font-size: 0.9rem;
}

#copy-notice p {
    margin: 0.5rem 0;
}

.site-link-stylized {
    color: var(--primary-text-color);
    font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
    letter-spacing: 0.2rem;
    text-decoration: none;
    display: inline-block;
}

#site-footer .container {
    padding: 1rem;
}

@media only screen and (min-width: 1024px) {
    #site-footer .container {
        padding-left: 0;
        padding-right: 0;
    }
}

/* MAIN */

main {
    background-color: var(--page-bg-color);
    padding: 1rem 0;
    font-size: 1.05rem;
}

article {
    color: var(--post-text-color);
}

/* POST */

.post header,
.post .post-body {
    background-color: var(--post-bg-color);
    padding: 1rem;
}

.post header {
    margin-bottom: 1rem;
}

.post h1 {
    text-align: center;
}

/* POST-LIST */

.post-list-container>header {
    margin-bottom: 1rem;
    padding: 1rem;
    background-color: var(--post-bg-color);
}

.post-list-container h1 {
    text-align: center;
}

.post-list article {
    background-color: var(--post-bg-color);
    margin-bottom: 1rem;
    padding: 1rem;
}

.post-list article:last-child {
    margin-bottom: 0;
}

.post-list header h2 {
    margin: 0;
}

.post-list header a {
    padding: 1rem 0;
    display: block;
    text-decoration: none;
    color: var(--btn-bg-color);
    transition: color ease var(--btn-transition-duration);
}

.post-list header a:hover {
    color: var(--btn-bg-color-hover);
}

.read-more {
    text-align: end;
}

.read-more .btn,
.pager .btn {
    padding: 0.5rem 0.9rem;
}

.pager {
    padding: 0 1rem;
}

.pager ul {
    display: flex;
    justify-content: space-between;
    list-style: none;
    margin: 0;
    padding: 0;
}

@media only screen and (min-width: 1024px) {
    .pager {
        padding: 0;
    }
}

pre {
    background-color: var(--block-code-bg-color) !important;
    margin-left: -1rem !important;
    margin-right: -1rem !important;
    border-radius: 0 !important;
    direction: ltr;
}

code {
    background-color: var(--inline-code-bg-color);
    border-radius: 0;
    padding: 0.2em 0.4em;
    font-size: 0.9em;
    font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
}

pre code {
    padding: 0;
}

img {
    max-width: 100%;
}

figure.image {
    margin: 2rem -1rem;
}

figure.image img {
    display: block;
    margin: 0 auto;
}

figcaption {
    text-align: center;
    color: var(--figcaption-color);
    padding: 0.5rem 3rem;
    font-size: 0.9em;
}