/* ============================================================
   SOFT THEME — base: reset, typography, layout, utilities,
   and the flowing colour backdrop behind everything.
   ============================================================ */

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

html {
    background-color: var(--bd-base);
    color-scheme: light;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 90px; /* keeps anchors below the sticky navbar */
    overflow-x: hidden;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    isolation: isolate;           /* the backdrop layers stay behind the content, not behind <html> */
    overflow-x: hidden;
    color: var(--text);
    font-family: var(--font-text);
    font-optical-sizing: auto;
    font-variation-settings: var(--soft-axis-text);
    font-size: 1.0625rem;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

main {
    flex: 1 0 auto;
    padding: 28px 0 8px;
}

img, svg, video { max-width: 100%; height: auto; }

::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); color: var(--text); }

/* Thin, quiet scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }

/* ── Photo backdrop (optional) ──
   A backdrop may add a photograph (backdrops.css: --bd-photo-lg, optional --bd-photo-sm for narrow
   screens, --bd-photo-y for the vertical focus, --bd-veil for a light wash over it). It sits on the
   <html> element, below everything; the colour fields below then tint it softly. Without a photo
   this layer is empty and the page shows the colour fields alone. */
html {
    --bd-photo-active: var(--bd-photo-lg, none);
}
@media (max-width: 900px) {
    html { --bd-photo-active: var(--bd-photo-sm, var(--bd-photo-lg, none)); }
}
html::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image: var(--bd-veil, none), var(--bd-photo-active);
    background-size: cover;
    background-position: center var(--bd-photo-y, 40%);
    background-repeat: no-repeat;
}

/* ── Flowing colour backdrop ──
   --bd-glow-* (backdrops.css) become large, blurred colour fields that
   bleed into each other (pale on a warm base = a sunlit sky). The layer is
   slightly oversized so its slow drift never exposes an edge. A faint grain
   on top keeps it matte, never glossy. */
body::before {
    content: '';
    position: fixed;
    inset: -12%;
    z-index: -2;
    pointer-events: none;
    background:
        radial-gradient(48vmax 40vmax at 14% 10%, color-mix(in srgb, var(--bd-glow-1) calc(var(--bd-glow-strength) * 100%), transparent), transparent 70%),
        radial-gradient(44vmax 38vmax at 88% 18%, color-mix(in srgb, var(--bd-glow-2) calc(var(--bd-glow-strength) * 100%), transparent), transparent 68%),
        radial-gradient(52vmax 42vmax at 78% 92%, color-mix(in srgb, var(--bd-glow-3) calc(var(--bd-glow-strength) * 100%), transparent), transparent 70%),
        radial-gradient(46vmax 40vmax at 8% 86%, color-mix(in srgb, var(--bd-glow-4) calc(var(--bd-glow-strength) * 100%), transparent), transparent 70%),
        radial-gradient(40vmax 34vmax at 48% 52%, color-mix(in srgb, var(--bd-glow-5) calc(var(--bd-glow-strength) * 70%), transparent), transparent 72%);
    filter: blur(32px);
    opacity: var(--bd-glow-opacity, 1); /* lower when a photo is the main backdrop */
    animation: bd-drift 90s ease-in-out infinite alternate;
    will-change: transform;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.16;
    mix-blend-mode: soft-light;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes bd-drift {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    50%  { transform: translate3d(-2.5%, 1.8%, 0) scale(1.05); }
    100% { transform: translate3d(2%, -2%, 0) scale(1.02); }
}

@media (prefers-reduced-motion: reduce) {
    body::before { animation: none; }
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ── Text that sits directly on the backdrop ──
   Nearly everything lives on translucent surfaces. The few lines that would otherwise sit straight
   on the background (page headings, filter label, empty-state notes) get a small paper chip, so
   they stay legible on top of a photograph, whatever it shows. */
:root { --halo: 0 0 14px color-mix(in srgb, var(--bd-base) 92%, transparent), 0 0 4px color-mix(in srgb, var(--bd-base) 85%, transparent); }

.posts-header > label,
.content-area > :is(h1, h2):not(.sr-only),
.content-area > p.text-muted,
.content-area > section > h2,
.content-area > section > p.text-muted,
.stats-meta {
    display: block;
    width: fit-content;
    max-width: 100%;
    padding: 0.45rem 1.2rem;
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    background: var(--surface);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-1);
}
.posts-header > label { margin-bottom: 0.7rem; padding-block: 0.3rem; border-radius: var(--r-pill); }
.content-area > :is(h1, h2):not(.sr-only) { margin-bottom: 1rem; }

/* Single words and icons that are left over: a quiet halo is enough */
.tags-label,
.featured-title { text-shadow: var(--halo); }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
    margin: 0 0 0.5em;
    font-family: var(--font-text);
    font-variation-settings: var(--soft-axis);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.012em;
    color: var(--text);
}

h1 { font-size: clamp(2rem, 4.4vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.15rem; }
.h4 { font-size: 1.2rem; font-weight: 500; }

p { margin: 0 0 1em; }

a {
    color: var(--accent);
    text-decoration: none;
    text-underline-offset: 0.2em;
    text-decoration-thickness: 1px;
    transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--accent-strong); }

hr {
    border: 0;
    height: 1px;
    margin: 2rem 0;
    background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

strong, b { font-weight: 600; }
small, .small { font-size: 0.85rem; }
mark {
    background: color-mix(in srgb, var(--accent) 32%, transparent);
    color: inherit;
    border-radius: 6px;
    padding: 0 0.2em;
}

button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

/* ── Focus: soft ring, only for keyboard users ── */
:focus { outline: none; }
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* ── Accessibility helpers ── */
.sr-only {
    position: absolute !important;
    width: 1px; height: 1px;
    margin: -1px; padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 50%;
    z-index: 200;
    transform: translate(-50%, -160%);
    padding: 0.6rem 1.2rem;
    border-radius: var(--r-pill);
    background: var(--accent);
    color: var(--accent-ink);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    transition: transform var(--t-base) var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); color: var(--accent-ink); }

/* ── Layout ── */
.container {
    width: 100%;
    max-width: var(--page-max);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.container-fluid {
    width: 100%;
    padding-inline: var(--gutter);
}

.row { display: flex; flex-wrap: wrap; margin: 0; }
.row > * { flex: 0 0 100%; max-width: 100%; padding: 0; min-width: 0; }

.col-12 { flex: 0 0 100%; max-width: 100%; }

@media (min-width: 768px) {
    .col-md-3  { flex: 0 0 25%;      max-width: 25%; }
    .col-md-4  { flex: 0 0 33.3333%; max-width: 33.3333%; }
    .col-md-8  { flex: 0 0 66.6667%; max-width: 66.6667%; }
    .col-md-9  { flex: 0 0 75%;      max-width: 75%; }
    .col-md-10 { flex: 0 0 83.3333%; max-width: 83.3333%; }
}
@media (min-width: 992px) {
    .col-lg-6 { flex: 0 0 50%;      max-width: 50%; }
    .col-lg-8 { flex: 0 0 66.6667%; max-width: 66.6667%; }
}

.content-area { display: flex; flex-direction: column; min-width: 0; }

/* ── Utilities (the views rely on these) ── */
.hidden { display: none !important; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mt-15 { margin-top: 3rem; }
.mr-2 { margin-inline-end: 0.5rem; }
.mr-3 { margin-inline-end: 1rem; }
.ms-2 { margin-inline-start: 0.5rem; }
.my-2 { margin-block: 0.5rem; }
.my-5 { margin-block: 3rem; }
.py-4 { padding-block: 1.5rem; }
.py-5 { padding-block: 3rem; }
.d-flex { display: flex; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-none { display: none; }
.w-100 { width: 100%; }
.h-100 { height: 100%; }
.flex-wrap { flex-wrap: wrap; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.text-center { text-align: center; }
.lead { font-size: 1.2rem; font-weight: 400; }
.text-muted { color: var(--text-dim); }
.text-danger { color: var(--danger); }
.ornament-flip-y { transform: scaleY(-1); }

.text-muted.small, .small.text-muted { font-family: var(--font-ui); font-size: 0.875rem; }