/* ImageUpg content pages — blog, use cases, alternatives.
   Design tokens copied verbatim from index.html so content pages and the app
   stay visually identical. Do not fork these values; if index.html changes,
   change them here too. */

:root {
    --void: #07070B;
    --surface: #1B1028;
    --violet: #6B4EFF;
    --green: #2EFFA8;
    --text: #F3F3F7;
    --muted: #9AA0B5;
    --border: rgba(107, 78, 255, .18);
    --border2: rgba(255, 255, 255, .06);
    --red: #FF6B6B;
    --mono: 'DM Mono', monospace;
    --ease: cubic-bezier(.16, 1, .3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100% }

body {
    background: var(--void);
    color: var(--text);
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.65;
    font-size: 17px;
    overflow-x: hidden;
}

/* ambient glow, same treatment as the app's hero */
body::before {
    content: '';
    position: fixed;
    top: -20%; left: 50%;
    width: 900px; height: 700px;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(107, 78, 255, .13), transparent 65%);
    pointer-events: none;
    z-index: 0;
}

.container { width: 100%; max-width: 780px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1 }
.container-wide { max-width: 1140px }

/* ─── nav ─────────────────────────────────────────── */
.c-nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(7, 7, 11, .82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border2);
}
.c-nav-inner {
    max-width: 1140px; margin: 0 auto; padding: 14px 24px;
    display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.c-logo {
    display: inline-flex; align-items: center; gap: 9px;
    font-weight: 700; font-size: 1.12rem; color: var(--text);
    text-decoration: none; letter-spacing: -.02em;
}
.c-logo img { border-radius: 7px }
.c-nav-links { display: flex; align-items: center; gap: 26px }
.c-nav-links a {
    color: var(--muted); text-decoration: none; font-size: .94rem;
    font-weight: 500; transition: color .2s var(--ease);
}
.c-nav-links a:hover { color: var(--text) }
.c-nav-cta {
    background: var(--green); color: #05131A !important;
    padding: 9px 17px; border-radius: 9px; font-weight: 700; font-size: .9rem;
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.c-nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(46, 255, 168, .26) }
@media (max-width: 720px) { .c-nav-links { gap: 15px } .c-nav-links .hide-sm { display: none } }

/* ─── breadcrumb ──────────────────────────────────── */
.crumbs { font-size: .84rem; color: var(--muted); padding: 26px 0 0; display: flex; gap: 8px; flex-wrap: wrap }
.crumbs a { color: var(--muted); text-decoration: none }
.crumbs a:hover { color: var(--green) }
.crumbs span { opacity: .5 }

/* ─── article ─────────────────────────────────────── */
.post-head { padding: 26px 0 30px }
.eyebrow {
    display: inline-block; font-family: var(--mono); font-size: .74rem;
    letter-spacing: .12em; text-transform: uppercase; color: var(--green);
    border: 1px solid rgba(46, 255, 168, .28); background: rgba(46, 255, 168, .06);
    padding: 5px 11px; border-radius: 999px; margin-bottom: 18px;
}
h1 {
    font-size: clamp(2rem, 5.2vw, 3rem); line-height: 1.1;
    letter-spacing: -.035em; font-weight: 800; margin-bottom: 18px;
}
.post-meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; color: var(--muted); font-size: .89rem }
.post-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); opacity: .6 }
.lede { font-size: 1.16rem; color: #C9CBDA; margin: 22px 0 0; line-height: 1.6 }

article { padding-bottom: 40px }
article h2 {
    font-size: clamp(1.5rem, 3.4vw, 1.95rem); line-height: 1.2; letter-spacing: -.025em;
    font-weight: 700; margin: 52px 0 16px; scroll-margin-top: 80px;
}
article h3 {
    font-size: 1.22rem; font-weight: 700; margin: 34px 0 12px;
    letter-spacing: -.015em; scroll-margin-top: 80px;
}
article p { margin-bottom: 19px; color: #D5D7E4 }
article ul, article ol { margin: 0 0 22px 22px; color: #D5D7E4 }
article li { margin-bottom: 9px }
article strong { color: var(--text); font-weight: 600 }
article a { color: var(--green); text-decoration: none; border-bottom: 1px solid rgba(46, 255, 168, .3) }
article a:hover { border-bottom-color: var(--green) }

blockquote {
    border-left: 3px solid var(--violet); padding: 4px 0 4px 20px;
    margin: 26px 0; color: #C3C6D6; font-style: italic;
}

/* ─── table of contents ───────────────────────────── */
.toc {
    background: rgba(27, 16, 40, .5); border: 1px solid var(--border);
    border-radius: 14px; padding: 22px 24px; margin: 34px 0;
}
.toc-title {
    font-family: var(--mono); font-size: .76rem; letter-spacing: .1em;
    text-transform: uppercase; color: var(--muted); margin-bottom: 13px;
}
.toc ol { margin: 0 0 0 18px; color: var(--muted) }
.toc li { margin-bottom: 7px }
.toc a { color: #C9CBDA; text-decoration: none; border: 0 }
.toc a:hover { color: var(--green) }

/* ─── tables ──────────────────────────────────────── */
.table-wrap { overflow-x: auto; margin: 28px 0; -webkit-overflow-scrolling: touch }
table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 560px }
th, td { padding: 13px 15px; text-align: left; border-bottom: 1px solid var(--border2) }
th {
    font-family: var(--mono); font-size: .75rem; letter-spacing: .07em;
    text-transform: uppercase; color: var(--muted); font-weight: 500;
    border-bottom: 1px solid var(--border);
}
td { color: #D5D7E4 }
tbody tr:hover { background: rgba(107, 78, 255, .05) }
.row-hl { background: rgba(46, 255, 168, .05) }
.row-hl td { color: var(--text) }
.row-hl td:first-child { font-weight: 700; box-shadow: inset 3px 0 0 var(--green) }
.tick { color: var(--green); font-weight: 700 }
.cross { color: var(--red); opacity: .8 }
.tbd { color: var(--muted); font-style: italic; opacity: .75 }

/* ─── CTA banner ──────────────────────────────────── */
.cta {
    background: linear-gradient(135deg, rgba(107, 78, 255, .16), rgba(46, 255, 168, .09));
    border: 1px solid var(--border); border-radius: 18px;
    padding: 32px 30px; margin: 42px 0; text-align: center;
}
.cta h3 { font-size: 1.42rem; margin: 0 0 9px; letter-spacing: -.02em; font-weight: 700 }
.cta p { color: var(--muted); margin: 0 0 20px; font-size: .98rem }
.cta-btn {
    display: inline-block; background: var(--green); color: #05131A;
    padding: 13px 30px; border-radius: 11px; font-weight: 700; font-size: 1rem;
    text-decoration: none; border: 0 !important;
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(46, 255, 168, .3) }
.cta-sub { display: block; margin-top: 13px; font-size: .84rem; color: var(--muted) }

/* ─── image placeholder ───────────────────────────── */
.img-ph {
    border: 1px dashed var(--border); border-radius: 13px;
    padding: 46px 20px; text-align: center; color: var(--muted);
    font-family: var(--mono); font-size: .82rem; margin: 26px 0;
    background: rgba(27, 16, 40, .32);
}

/* ─── FAQ ─────────────────────────────────────────── */
.faq-item { border-bottom: 1px solid var(--border2); padding: 20px 0 }
.faq-item:last-child { border-bottom: 0 }
.faq-q { font-weight: 700; font-size: 1.05rem; margin-bottom: 9px; color: var(--text) }
.faq-a { color: #C9CBDA; font-size: .97rem; margin: 0 }

/* ─── related posts / cards ───────────────────────── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 18px; margin: 26px 0 }
.card {
    background: rgba(27, 16, 40, .48); border: 1px solid var(--border);
    border-radius: 15px; padding: 22px; text-decoration: none !important;
    display: block; border-bottom: 1px solid var(--border) !important;
    transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-3px); border-color: rgba(107, 78, 255, .42) }
.card-tag {
    font-family: var(--mono); font-size: .7rem; letter-spacing: .09em;
    text-transform: uppercase; color: var(--green); display: block; margin-bottom: 9px;
}
.card h3 { font-size: 1.08rem; margin: 0 0 8px; color: var(--text); line-height: 1.32; font-weight: 700 }
.card p { font-size: .89rem; color: var(--muted); margin: 0 }

/* ─── section divider ─────────────────────────────── */
.sec-title {
    font-family: var(--mono); font-size: .78rem; letter-spacing: .1em;
    text-transform: uppercase; color: var(--muted);
    margin: 46px 0 18px; padding-top: 26px; border-top: 1px solid var(--border2);
}

/* ─── footer ──────────────────────────────────────── */
.c-foot { border-top: 1px solid var(--border2); margin-top: 60px; padding: 40px 0 34px }
.c-foot-grid {
    max-width: 1140px; margin: 0 auto; padding: 0 24px;
    display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 34px;
}
.c-foot-title {
    font-family: var(--mono); font-size: .74rem; letter-spacing: .1em;
    text-transform: uppercase; color: var(--muted); margin-bottom: 14px;
}
.c-foot-col a { display: block; color: #C0C3D2; text-decoration: none; font-size: .91rem; margin-bottom: 10px }
.c-foot-col a:hover { color: var(--green) }
.c-foot-tag { color: var(--muted); font-size: .89rem; margin-top: 10px; max-width: 270px }
.c-foot-bottom {
    max-width: 1140px; margin: 32px auto 0; padding: 22px 24px 0;
    border-top: 1px solid var(--border2); color: var(--muted); font-size: .85rem;
}
@media (max-width: 860px) { .c-foot-grid { grid-template-columns: 1fr 1fr; gap: 26px } }
@media (max-width: 480px) { .c-foot-grid { grid-template-columns: 1fr } body { font-size: 16px } }