/* TrivAI public site — minimal shared stylesheet.
 *
 * Design intent: low-marketing, friendly, system fonts, single colour
 * palette, generous line-height, mobile-friendly without media queries.
 * No JavaScript anywhere on the site, no external CDNs, no fonts loaded
 * from the network.
 */

:root {
    /* Single-colour palette: one primary, one text colour, one muted
     * background. Tweak here to retheme the entire site. */
    --color-primary: #2c5fa1;
    --color-primary-dark: #1e4476;
    --color-text: #1f2430;
    --color-muted: #5a6477;
    --color-bg: #f7f7f4;
    --color-surface: #ffffff;
    --color-border: #e5e5dd;
    --color-marker-bg: #fff3a8;
    --color-marker-text: #5a4a00;

    --content-width: 720px;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2.5rem;
}

* {
    box-sizing: border-box;
}

html {
    /* 100% so user font-size preferences are respected. */
    font-size: 100%;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-text-size-adjust: 100%;
}

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

.page-header,
.page-main,
.page-footer {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: var(--space-3) var(--space-4);
}

.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    padding-top: var(--space-4);
    padding-bottom: var(--space-3);
}

.page-main {
    padding-top: var(--space-4);
    padding-bottom: var(--space-5);
}

.page-footer {
    border-top: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 0.9rem;
    padding-top: var(--space-3);
    padding-bottom: var(--space-4);
}

.page-footer p {
    margin: var(--space-1) 0;
}

/* ------------------------------------------------------------------ */
/* Wordmark + nav                                                      */
/* ------------------------------------------------------------------ */

.wordmark {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-text);
    text-decoration: none;
}

.wordmark .wordmark-ai {
    color: var(--color-primary);
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.site-nav a {
    color: var(--color-muted);
    text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus {
    color: var(--color-primary);
    text-decoration: underline;
}

.site-nav a[aria-current="page"] {
    color: var(--color-text);
    font-weight: 600;
}

/* ------------------------------------------------------------------ */
/* Typography                                                          */
/* ------------------------------------------------------------------ */

h1,
h2,
h3,
h4 {
    line-height: 1.25;
    margin-top: var(--space-5);
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

h1 {
    font-size: 2rem;
    margin-top: var(--space-3);
}

h2 {
    font-size: 1.4rem;
}

h3 {
    font-size: 1.15rem;
}

p,
ul,
ol {
    margin: var(--space-3) 0;
}

ul,
ol {
    padding-left: 1.4rem;
}

li + li {
    margin-top: var(--space-1);
}

a {
    color: var(--color-primary);
    text-decoration: underline;
}

a:hover,
a:focus {
    color: var(--color-primary-dark);
}

strong {
    font-weight: 700;
}

hr {
    border: 0;
    border-top: 1px solid var(--color-border);
    margin: var(--space-4) 0;
}

blockquote {
    margin: var(--space-3) 0;
    padding: var(--space-2) var(--space-3);
    border-left: 3px solid var(--color-primary);
    background: var(--color-surface);
    color: var(--color-muted);
}

/* ------------------------------------------------------------------ */
/* Tables                                                              */
/* ------------------------------------------------------------------ */

table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-3) 0;
    background: var(--color-surface);
}

th,
td {
    text-align: left;
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

th {
    background: var(--color-bg);
    font-weight: 600;
}

/* ------------------------------------------------------------------ */
/* Placeholder markers                                                 */
/*                                                                     */
/* The privacy and terms pages are converted from markdown that still  */
/* contains {{PLACEHOLDER}} values awaiting user-driven decisions      */
/* (legal name, retention periods, etc.). Render them with a loud      */
/* highlight so we never accidentally publish unfilled placeholders.   */
/* ------------------------------------------------------------------ */

mark.placeholder {
    background: var(--color-marker-bg);
    color: var(--color-marker-text);
    padding: 0 var(--space-1);
    border-radius: 2px;
    font-style: italic;
}

mark.placeholder::before {
    content: "[fill: ";
}

mark.placeholder::after {
    content: "]";
}

/* ------------------------------------------------------------------ */
/* Hero (landing page)                                                 */
/* ------------------------------------------------------------------ */

.hero {
    text-align: center;
    padding: var(--space-5) 0 var(--space-4);
}

.hero-title {
    font-size: 2.5rem;
    margin: 0 0 var(--space-2) 0;
}

.hero-title .wordmark-ai {
    color: var(--color-primary);
}

.hero-tagline {
    font-size: 1.2rem;
    color: var(--color-muted);
    margin: 0 0 var(--space-4) 0;
}

.coming-soon {
    display: inline-block;
    margin-top: var(--space-3);
    padding: var(--space-2) var(--space-3);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.highlights {
    list-style: none;
    padding: 0;
    margin: var(--space-4) 0;
}

.highlights li {
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border);
}

.highlights li:last-child {
    border-bottom: none;
}

/* ------------------------------------------------------------------ */
/* 404                                                                 */
/* ------------------------------------------------------------------ */

.not-found {
    text-align: center;
    padding: var(--space-5) 0;
}