/* ============================================================
   dank — Personal Site & Blog
   Shared stylesheet (index + post pages)
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
    --bg:             #060b0d;
    --bg-elevated:    #0a1215;
    --bg-panel:       rgba(13, 148, 136, 0.045);
    --bg-panel-hover: rgba(13, 148, 136, 0.085);
    --bg-code:        rgba(6, 11, 13, 0.85);

    --teal:           #0f766e;
    --teal-mid:       #14b8a6;
    --teal-bright:    #5eead4;
    --teal-ghost:     rgba(20, 184, 166, 0.12);
    --teal-glow:      rgba(20, 184, 166, 0.22);

    --gold:           #b45309;
    --gold-mid:       #d97706;
    --gold-bright:    #fbbf24;
    --gold-ghost:     rgba(251, 191, 36, 0.12);
    --gold-glow:      rgba(251, 191, 36, 0.22);

    --text:           #edfaf7;
    --text-dim:       rgba(237, 250, 247, 0.62);
    --text-ghost:     rgba(237, 250, 247, 0.32);

    --border:         rgba(20, 184, 166, 0.13);
    --border-glow:    rgba(20, 184, 166, 0.38);

    --font-display:   'Space Grotesk', -apple-system, sans-serif;
    --font-body:      'Inter', -apple-system, sans-serif;
    --font-mono:      'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    --ease:           cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out:       cubic-bezier(0, 0, 0.2, 1);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Subtle ambient radial tints */
body::before {
    content: '';
    position: fixed; inset: 0;
    background:
        radial-gradient(ellipse 60% 45% at 85% 8%,  rgba(20, 184, 166, 0.055) 0%, transparent 100%),
        radial-gradient(ellipse 45% 35% at 8%  92%, rgba(20, 184, 166, 0.04)  0%, transparent 100%);
    pointer-events: none; z-index: 0;
}

::selection      { background: rgba(20, 184, 166, 0.28); color: var(--teal-bright); }
::-webkit-scrollbar            { width: 4px; }
::-webkit-scrollbar-track      { background: var(--bg); }
::-webkit-scrollbar-thumb      { background: var(--teal); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover{ background: var(--teal-mid); }

/* ── Utility ────────────────────────────────────────────────── */
.mono { font-family: var(--font-mono); }

/* ── Progress Bar ───────────────────────────────────────────── */
.progress-bar {
    position: fixed; top: 0; left: 0;
    height: 2px; width: 0%;
    background: linear-gradient(90deg, var(--teal) 0%, var(--teal-bright) 55%, var(--gold-bright) 100%);
    z-index: 2000;
    box-shadow: 0 0 10px var(--teal-glow);
    transition: width 0.08s linear;
}

/* ── Navigation ─────────────────────────────────────────────── */
.navbar {
    position: fixed; top: 2px; left: 0; right: 0;
    z-index: 1000;
    padding: 1.1rem 2rem;
    transition: background 0.4s var(--ease), border-color 0.4s var(--ease), padding 0.3s var(--ease);
}
.navbar.scrolled {
    background: rgba(6, 11, 13, 0.9);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 2rem;
}
.nav-inner {
    max-width: 1060px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
    font-family: var(--font-display);
    font-weight: 700; font-size: 1.15rem;
    color: var(--teal-bright);
    text-decoration: none; letter-spacing: -0.03em;
    transition: color 0.2s ease, text-shadow 0.2s ease;
}
.nav-logo:hover { color: var(--text); text-shadow: 0 0 18px var(--teal-glow); }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-link {
    font-family: var(--font-mono); font-size: 0.8rem;
    color: var(--text-ghost); text-decoration: none; letter-spacing: 0.04em;
    transition: color 0.2s ease;
}
.nav-link:hover { color: var(--teal-bright); }
.nav-rss {
    color: rgba(251,191,36,0.5);
    display: inline-flex; align-items: center;
    transition: color 0.2s ease;
}
.nav-rss:hover { color: var(--gold-bright) !important; }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    padding: 6rem 2rem 5rem;
}
.neural-canvas {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    z-index: 0; pointer-events: none;
}

/* ── Post page margin canvas ────────────────────────────── */
.post-hero-wrap {
    position: relative;
    overflow: hidden;
}
.post-neural-canvas {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
}
.hero-content {
    position: relative; z-index: 1;
    max-width: 1060px; width: 100%; margin: 0 auto;
    padding: 0 2rem;
    display: flex; flex-direction: column; align-items: flex-start;
    animation: heroIn 1s var(--ease) both;
}
@keyframes heroIn {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-badge {
    font-family: var(--font-mono); font-size: 0.78rem;
    color: var(--teal-mid); letter-spacing: 0.1em;
    margin-bottom: 0.85rem; opacity: 0.75;
}
.hero-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(4.5rem, 13vw, 10rem);
    line-height: 0.9;
    letter-spacing: -0.05em;
    margin-bottom: 1.75rem;
    background: linear-gradient(145deg,
        var(--text) 0%,
        var(--teal-bright) 40%,
        var(--text) 80%,
        var(--teal-bright) 120%);
    background-size: 250% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: nameShimmer 8s ease-in-out infinite alternate;
}
@media (prefers-reduced-motion: reduce) {
    .hero-name { animation: none; background-size: 100% auto; }
}
@keyframes nameShimmer {
    from { background-position: 0% center; }
    to   { background-position: 100% center; }
}
.hero-typing-wrap {
    display: flex; align-items: center;
    font-family: var(--font-mono);
    font-size: clamp(0.85rem, 2vw, 1.05rem);
    color: var(--text-dim);
    margin-bottom: 2rem; min-height: 1.6em;
}
.typing-prefix { color: var(--teal-mid); flex-shrink: 0; }
.typing-cursor {
    color: var(--teal-bright);
    animation: blink 1s step-end infinite;
    margin-left: 1px; flex-shrink: 0;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-tags { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.hero-tag {
    font-family: var(--font-mono); font-size: 0.72rem;
    color: var(--text-ghost);
    border: 1px solid rgba(20, 184, 166, 0.14);
    padding: 0.28rem 0.7rem; border-radius: 4px;
    letter-spacing: 0.04em;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.hero-tag:hover {
    color: var(--teal-bright);
    border-color: rgba(20, 184, 166, 0.4);
    background: rgba(20, 184, 166, 0.05);
}

.hero-scroll-hint {
    position: absolute; bottom: 2.5rem; left: 50%;
    transform: translateX(-50%); z-index: 1;
}
.scroll-line {
    width: 1px; height: 52px;
    background: linear-gradient(to bottom, var(--teal-mid), transparent);
    animation: scrollPulse 2.2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.35; transform: scaleY(1); }
    50%       { opacity: 0.8;  transform: scaleY(0.75); }
}

/* ── Layout ─────────────────────────────────────────────────── */
.container { max-width: 1060px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 6rem 0; position: relative; z-index: 1; }
.about-section { padding: 5rem 0; }

.section-label {
    font-family: var(--font-mono); font-size: 0.78rem;
    color: var(--teal-mid); letter-spacing: 0.12em;
    margin-bottom: 1.75rem; opacity: 0.85;
}

/* ── Reveal ─────────────────────────────────────────────────── */
.reveal {
    opacity: 0; transform: translateY(26px);
    transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
    transition-delay: var(--delay, 0s);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Glass Panel ────────────────────────────────────────────── */
.glass-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color 0.3s ease, background 0.3s ease;
}
.glass-panel:hover {
    border-color: var(--border-glow);
    background: var(--bg-panel-hover);
}

/* ── About ──────────────────────────────────────────────────── */
.about-card {
    padding: 2.5rem;
    display: flex; flex-direction: column; gap: 1.25rem;
}
.about-text {
    font-size: 1.08rem; line-height: 1.8;
    color: var(--text-dim);
}
.about-tags { display: flex; gap: 0.45rem; flex-wrap: wrap; margin-top: 0.25rem; }

/* ── Tags ───────────────────────────────────────────────────── */
.tag {
    font-family: var(--font-mono); font-size: 0.7rem;
    letter-spacing: 0.04em; padding: 0.22rem 0.6rem; border-radius: 4px;
    transition: all 0.2s ease; white-space: nowrap; cursor: default;
}
.tag--teal {
    color: var(--teal-bright);
    background: rgba(20, 184, 166, 0.08);
    border: 1px solid rgba(20, 184, 166, 0.2);
}
.tag--teal:hover {
    background: rgba(20, 184, 166, 0.15);
    border-color: rgba(20, 184, 166, 0.42);
}
.tag--gold {
    color: var(--gold-bright);
    background: var(--gold-ghost);
    border: 1px solid rgba(251, 191, 36, 0.22);
}
.tag--filter {
    color: var(--text-ghost); background: transparent;
    border: 1px solid var(--border); cursor: pointer;
}
.tag--filter:hover, .tag--filter.active {
    color: var(--teal-bright);
    border-color: var(--border-glow);
    background: rgba(20, 184, 166, 0.06);
}
.tag--filter.active { color: var(--teal-bright); font-weight: 500; }

/* ── Posts ──────────────────────────────────────────────────── */
.posts-header {
    display: flex; align-items: center;
    justify-content: space-between; flex-wrap: wrap;
    gap: 1rem; margin-bottom: 2rem;
}
.tag-filter { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.1rem;
}

.posts-loading, .posts-empty {
    grid-column: 1 / -1;
    padding: 4rem 2rem; text-align: center;
    font-family: var(--font-mono); font-size: 0.85rem;
    color: var(--text-ghost);
}
.posts-loading { animation: loadPulse 1.6s ease-in-out infinite; }
@keyframes loadPulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 0.85; } }

.post-card {
    display: flex; flex-direction: column; gap: 0.7rem;
    padding: 1.65rem 1.75rem;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    text-decoration: none; cursor: pointer;
    transition: border-color 0.28s ease, background 0.28s ease,
                transform 0.28s var(--ease), box-shadow 0.28s ease;
}
.post-card:hover {
    border-color: var(--border-glow);
    background: var(--bg-panel-hover);
    transform: translateY(-4px);
    box-shadow: 0 14px 40px rgba(20, 184, 166, 0.1);
}

.post-meta { display: flex; align-items: center; gap: 0.85rem; }
.post-date {
    font-family: var(--font-mono); font-size: 0.7rem;
    color: var(--teal-mid); letter-spacing: 0.06em;
}
.post-read {
    font-family: var(--font-mono); font-size: 0.68rem;
    color: var(--text-ghost); letter-spacing: 0.04em;
}
.post-title {
    font-family: var(--font-display);
    font-size: 1.15rem; font-weight: 600;
    color: var(--text); line-height: 1.3; letter-spacing: -0.02em;
    transition: color 0.2s ease;
}
.post-card:hover .post-title { color: var(--teal-bright); }
.post-excerpt {
    font-size: 0.92rem; color: var(--text-dim);
    line-height: 1.65; flex-grow: 1;
}
.post-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.15rem; }

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
    padding: 3rem 0 2.5rem;
    border-top: 1px solid var(--border);
    position: relative; z-index: 1;
}
.footer-inner {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 0.65rem; flex-wrap: wrap; gap: 0.75rem;
}
.footer-name {
    font-family: var(--font-display); font-weight: 700; font-size: 1.1rem;
    color: var(--teal-bright); letter-spacing: -0.03em;
}
.footer-email {
    font-family: var(--font-mono); font-size: 0.8rem;
    color: var(--text-dim); text-decoration: none;
    transition: color 0.2s ease;
}
.footer-email:hover { color: var(--teal-bright); }
.footer-sub {
    font-family: var(--font-mono); font-size: 0.73rem;
    color: var(--text-ghost); letter-spacing: 0.04em;
}


/* ============================================================
   POST PAGE STYLES
   Applied to posts/*.html
   ============================================================ */

.post-nav-link {
    font-family: var(--font-mono); font-size: 0.8rem;
    color: var(--text-ghost); text-decoration: none; letter-spacing: 0.04em;
    transition: color 0.2s ease;
}
.post-nav-link:hover { color: var(--teal-bright); }

.post-hero {
    padding: 8rem 2rem 3.5rem;
    max-width: 860px; margin: 0 auto;
    position: relative; z-index: 1;
}
.post-back {
    display: inline-flex; align-items: center; gap: 0.45rem;
    font-family: var(--font-mono); font-size: 0.76rem;
    color: var(--text-ghost); text-decoration: none; letter-spacing: 0.05em;
    margin-bottom: 2.75rem;
    transition: color 0.2s ease;
}
.post-back:hover { color: var(--teal-bright); }
.post-back::before { content: '←'; font-size: 0.9em; }

.post-header-meta {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 1.1rem;
}
.post-header-date {
    font-family: var(--font-mono); font-size: 0.78rem;
    color: var(--teal-mid); letter-spacing: 0.06em;
}
.post-header-read {
    font-family: var(--font-mono); font-size: 0.73rem; color: var(--text-ghost);
}

.post-header-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5.5vw, 3.4rem);
    font-weight: 700; color: var(--text);
    line-height: 1.08; letter-spacing: -0.035em;
    margin-bottom: 1.5rem;
}
.post-header-tags {
    display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 3rem;
}
.post-divider {
    width: 100%; height: 1px;
    background: linear-gradient(90deg, var(--teal-ghost), transparent);
    margin-bottom: 3.5rem;
}

/* ── Post body rich text ────────────────────────────────────── */
.post-body {
    max-width: 700px; margin: 0 auto;
    padding: 0 2rem 7rem;
    font-size: 1.06rem; line-height: 1.82;
    color: var(--text-dim);
}
.post-body > * + * { margin-top: 1.5rem; }

.post-body h2 {
    font-family: var(--font-display); font-size: 1.6rem;
    font-weight: 600; color: var(--text);
    letter-spacing: -0.025em;
    margin-top: 3rem; margin-bottom: 0.65rem;
}
.post-body h3 {
    font-family: var(--font-display); font-size: 1.2rem;
    font-weight: 600; color: var(--text);
    letter-spacing: -0.015em;
    margin-top: 2.25rem; margin-bottom: 0.5rem;
}
.post-body p { color: var(--text-dim); }

.post-body a {
    color: var(--teal-bright); text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(94, 234, 212, 0.3);
    transition: text-decoration-color 0.2s ease;
}
.post-body a:hover { text-decoration-color: var(--teal-bright); }

.post-body strong { color: var(--text); font-weight: 600; }
.post-body em     { color: var(--gold-bright); font-style: italic; }

.post-body code {
    font-family: var(--font-mono); font-size: 0.875em;
    background: rgba(20, 184, 166, 0.07);
    border: 1px solid rgba(20, 184, 166, 0.18);
    padding: 0.15em 0.42em; border-radius: 4px;
    color: var(--teal-bright);
}
.post-body pre {
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.5rem 1.75rem;
    overflow-x: auto;
    margin: 2rem 0;
}
.post-body pre code {
    background: none; border: none; padding: 0;
    color: var(--text-dim); font-size: 0.88rem; line-height: 1.7;
}
.post-body blockquote {
    border-left: 3px solid var(--teal);
    padding: 0.4rem 0 0.4rem 1.5rem;
    color: var(--text-ghost); font-style: italic;
}
.post-body ul, .post-body ol {
    padding-left: 1.4rem;
    display: flex; flex-direction: column; gap: 0.45rem;
}
.post-body ul li::marker { color: var(--teal-mid); content: '→  '; }
.post-body ol li::marker {
    color: var(--teal-mid);
    font-family: var(--font-mono); font-size: 0.82em;
}
.post-body hr {
    border: none; height: 1px;
    background: linear-gradient(90deg, var(--teal-ghost), transparent);
    margin: 2.5rem 0;
}

/* Code block copy button */
.post-body pre { position: relative; }
.copy-btn {
    position: absolute; top: 0.65rem; right: 0.65rem;
    font-family: var(--font-mono); font-size: 0.62rem;
    color: var(--text-ghost); letter-spacing: 0.05em;
    background: rgba(20,184,166,0.07);
    border: 1px solid rgba(20,184,166,0.15);
    border-radius: 4px; padding: 0.2rem 0.55rem;
    cursor: pointer; opacity: 0;
    transition: opacity 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.post-body pre:hover .copy-btn { opacity: 1; }
.copy-btn:hover {
    color: var(--teal-bright);
    background: rgba(20,184,166,0.12);
    border-color: rgba(20,184,166,0.35);
}
.copy-btn.copied {
    color: #4ade80;
    border-color: rgba(34,197,94,0.4);
    background: rgba(34,197,94,0.08);
    opacity: 1;
}

/* Post footer nav */
.post-footer-nav {
    max-width: 700px; margin: 0 auto;
    padding: 0 2rem 4rem;
    display: flex; justify-content: flex-start;
}
.post-footer-back {
    font-family: var(--font-mono); font-size: 0.78rem;
    color: var(--text-ghost); text-decoration: none;
    letter-spacing: 0.05em;
    display: inline-flex; align-items: center; gap: 0.4rem;
    transition: color 0.2s ease;
}
.post-footer-back::before { content: '←'; }
.post-footer-back:hover { color: var(--teal-bright); }


/* ── View Transitions ───────────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {
    ::view-transition-old(root) { animation: 180ms ease both vt-fade-out; }
    ::view-transition-new(root) { animation: 280ms ease both vt-fade-in;  }
    /* Named elements (post titles) use the browser's default morph — no override needed */
}
@keyframes vt-fade-in  { from { opacity: 0; transform: translateY(10px); } }
@keyframes vt-fade-out { to   { opacity: 0; transform: translateY(-6px); } }

/* ── Post prev/next navigation ──────────────────────────────── */
.post-nav-strip {
    max-width: 700px; margin: 0 auto;
    padding: 0 2rem 5rem;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem; align-items: center;
}
.post-nav-prev,
.post-nav-next {
    font-family: var(--font-mono); font-size: 0.75rem;
    color: var(--text-ghost); text-decoration: none;
    letter-spacing: 0.04em;
    display: flex; flex-direction: column; gap: 0.2rem;
    transition: color 0.2s ease;
}
.post-nav-next { text-align: right; align-items: flex-end; }
.post-nav-prev:hover, .post-nav-next:hover { color: var(--teal-bright); }
.post-nav-label {
    font-size: 0.62rem; color: var(--text-ghost); opacity: 0.5;
    letter-spacing: 0.08em; text-transform: uppercase;
}
.post-nav-title {
    color: var(--text-dim); line-height: 1.3; font-size: 0.78rem;
    transition: color 0.2s ease;
}
.post-nav-prev:hover .post-nav-title,
.post-nav-next:hover .post-nav-title { color: var(--teal-bright); }
.post-nav-home {
    text-align: center; font-family: var(--font-mono); font-size: 0.7rem;
    color: var(--text-ghost); text-decoration: none; letter-spacing: 0.06em;
    transition: color 0.2s ease;
}
.post-nav-home:hover { color: var(--teal-bright); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 780px) {
    .section         { padding: 4.5rem 0; }
    .about-section   { padding: 4rem 0; }
    .about-card      { padding: 1.75rem; }
    .posts-grid      { grid-template-columns: 1fr; }
    .posts-header    { flex-direction: column; align-items: flex-start; }
    .post-hero       { padding: 7rem 1.5rem 3rem; }
    .post-body       { padding: 0 1.5rem 5rem; }
    .post-footer-nav { padding: 0 1.5rem 3rem; }
    .post-nav-strip {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
        padding: 0 1.5rem 3.5rem;
    }
    .post-nav-home {
        grid-column: 1 / -1;
        order: -1;
        padding-bottom: 0.75rem;
        border-bottom: 1px solid var(--teal-ghost);
        margin-bottom: 0.25rem;
    }
    .post-nav-next { text-align: right; }
    .footer-inner    { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 500px) {
    .nav-links { gap: 1.1rem; }
    .nav-link  { font-size: 0.75rem; }
    .hero-name { font-size: clamp(3.8rem, 18vw, 6rem); }
}