/* -----------------------------------
Variables
-------------------------------------- */

:root {
    --font: "IBM Plex Sans",-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji;
    --font-default: clamp(16px,calc(0.5vw + 14px),19px); /* 1rem */
    --font-s: 0.85rem;
    --font-l: 1.25rem;
    --font-xl: 2.5rem;
    --spacing-s: 2rem;
    --spacing-m: 4rem;
    --spacing-l: 8rem;
    --gap: var(--spacing-s);
    --color-mid: #686868;
    --color-dim: #ddd;
    --color-bg: #F8F6F5;
    --color-text: #000;
    --color-startups: #c77700;
    --color-essentials: #4b9600;
    --color-additional: #1AA6D2;
    --color-assorted: #5C47DB;
}

body.index {
    --color-mid: #888;
    --color-dim: #333;
    --color-bg: #000;
    --color-text: #F8F6F5;
    --color-startups: #FFC56F;
    --color-essentials: #c4eb9d;
    --color-additional: #6FDCFF;
    --color-assorted: #8d7bff;
}

/* -----------------------------------
Base + Typography
-------------------------------------- */

* {
    -webkit-font-smoothing: antialiased;
    box-sizing: border-box;
    font-feature-settings: "kern" 1,"liga" 1;
    min-height: 0vw;
}

html {
    font-family: var(--font);
    font-size: var(--font-default);
    line-height: 1.5rem;
    margin: 0 auto;
    max-width: 70rem;
    padding: var(--spacing-s);
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
}

strong {
    font-weight: 600;
}

h1 {
    margin: 0 0 var(--spacing-s) 0;
}

h2 {
    font-size: var(--font-xl);
    font-weight: 400;
    width: 100%;
    max-width: 8em;
    line-height: 1.1;
    padding: var(--spacing-s) 0;
    margin: 0;
}

section#guide-to-startups h2 { color: var(--color-startups); }
section#other-essentials h2 { color: var(--color-essentials); }
section#additional-guides h2 { color: var(--color-additional); }
section#assorted-goodness h2 { color: var(--color-assorted); }

a {
    color: var(--color-text);
    text-decoration-color: var(--color-mid);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-mid);
}

article p, article ul, article ol {
    max-width: 32rem;
    font-feature-settings: "liga" 1, "onum" 1;
}

blockquote {
    border-left: 1px solid var(--color-mid);
    margin-left: 0;
    padding-left: 1rem;
    font-size: var(--font-s);
}

/* -----------------------------------
Header & Nav
-------------------------------------- */

body>header {
    margin-bottom: var(--spacing-s);
}

a.logo {
    text-decoration: none;
}

body>header div, body>header h1 {
    font-size: var(--font-s);
}

body>header p {
    max-width: 20em;
    margin-top: 0;
    color: var(--color-mid);
}

nav {
    padding-top: var(--spacing-s);
    margin-bottom: var(--spacing-m);
    font-size: var(--font-s);
}

body.index main>div:first-of-type {
    display: none;
}

nav p {
    color: var(--color-mid);
    margin: 0;
}

nav a {
    text-decoration: none;
    font-weight: 600;
    color: var(--color-mid);
}

nav a:hover {
    color: var(--color-text);
}

nav div.startups a.active { color: var(--color-startups); }
nav div.essentials a.active { color: var(--color-essentials); }
nav div.additional a.active { color: var(--color-additional); }
nav div.assorted a.active { color: var(--color-assorted); }

/* -----------------------------------
Index Page
-------------------------------------- */

body.index {
    background-color: var(--color-bg);
    color: var(--color-default);
}

body.index section {
    margin-bottom: var(--spacing-l);
}

body.index ul {
    list-style: none;
    margin: 0;
    padding: 0;
    border-bottom: 1px solid var(--color-dim);
}

body.index ul li {
    margin-bottom: var(--spacing-m);
    border-top: 1px solid var(--color-dim);
    padding-top: 1rem;
}

body.index li blockquote {
    border: none;
    margin: 1em 0 0 0;
    padding: 0;
    color: var(--color-mid);
    background-repeat: no-repeat;
    max-width: 35em;
}

body.index li blockquote svg {
    width: 1.5em;
    display: block;
    margin-bottom: 0.5em;
    margin-right: 0.5em;
}

body.index li blockquote svg * {
    fill: var(--color-dim);
}

body.index li a {
    font-size: var(--font-l);
    line-height: 1.25;
    text-decoration: none;
}

body.index a span {
    display: block;
    color: var(--color-mid);
}

section#guide-to-startups li a:hover { color: var(--color-startups); }
section#other-essentials li a:hover { color: var(--color-essentials); }
section#additional-guides li a:hover { color: var(--color-additional); }
section#assorted-goodness li a:hover { color: var(--color-assorted); }

body.index blockquote {
    margin: 0;
}

/* -----------------------------------
Post Page
-------------------------------------- */

article header {
    border-top: 1px solid var(--color-dim);
}

article header h1 {
    font-size: var(--font-xl);
    line-height: 1.1;
    margin: var(--spacing-m) 0 0 0;
    font-weight: 400;
    max-width: 32rem;
}

article header h1 span {
    display: block;
    color: var(--color-mid);
}

article header time {
    display: block;
    color: var(--color-mid);
    margin-bottom: var(--spacing-m);
    font-size: var(--font-s);
    margin-top: 1em;
}

article footer {
    margin: var(--spacing-m) 0;
    font-size: var(--font-s);
}

article footer p, article footer a {
    color: var(--color-mid);
    font-style: italic;
}

.postnav p {
    margin-bottom: 1em;
    max-width: 15em;
}

.postnav .grid {
    display: grid;
}


/* -----------------------------------
Layout
-------------------------------------- */

@media (min-width: 600px) {
    header.grid {
        display: grid;
        grid-template-columns: 1fr 2fr;
        grid-gap: var(--gap);
    }
    .grid .grid {
        grid-template-columns: 1fr 1fr;
        grid-gap: 0 var(--gap);
    }
}

@media (min-width: 800px) {
    body>header { margin-bottom: 15vh; }
    body.index main>div:first-of-type { display: block; }
    body.index li blockquote { margin-top: 0; }
    article header {
        border-top: none;
    }
    .grid {
        display: grid;
        grid-template-columns: 1fr 2fr;
        grid-gap: var(--gap);
    }
    article,footer { grid-column: 2 / 3; }
    nav {
        position: sticky;
        top: 0;
    }
    body:not(.index) main>div {
        grid-column: 1 / 2;
        grid-row: 1 / 2;
    }
    body.index ul li {
        margin-bottom: var(--spacing-m);
        border-top: 1px solid var(--color-dim);
        padding-top: 1rem;
    }
    article header h1 { margin-top: var(--spacing-s); }
}