/* ─────────────────────────────────────────────────────────────────────────
   henrysGhost1CTrainingStyles.css
   TNT | Henry's Ghost Saga — Cross Training: JS, Java & Python
   Dark purple / ghost / spooky theme + colored computer-paper code panels.
   Yellow = JavaScript | Blue = Java | Green = Python
──────────────────────────────────────────────────────────────────────────── */

:root {
    --hg-purple:  #7c3aed;
    --hg-violet:  #a855f7;
    --hg-ghost:   #c4b5fd;
    --hg-teal:    #4dd9e8;
    --hg-dark:    #0d0a14;
    --hg-navy:    #08060f;
    --hg-mid:     #130e1e;
    --hg-border:  rgba(124,58,237,0.28);

    --js-row-a:   #fffef2;
    --js-row-b:   #fff3a0;
    --js-num:     #7a5c00;
    --js-text:    #1a1200;
    --js-hdr:     #1a1500;
    --js-hdr-bd:  #c8a000;
    --js-footer:  #1a1500;
    --js-kw:      #0000bb;
    --js-cmt:     #446633;
    --js-str:     #aa2200;
    --js-num-lit: #770099;

    --java-row-a:   #f4f9ff;
    --java-row-b:   #b8d5f0;
    --java-num:     #003d80;
    --java-text:    #001020;
    --java-hdr:     #001428;
    --java-hdr-bd:  #3380cc;
    --java-footer:  #001428;
    --java-kw:      #000099;
    --java-cmt:     #005540;
    --java-str:     #990000;
    --java-num-lit: #660099;

    --py-row-a:   #f4fff6;
    --py-row-b:   #a8dcb8;
    --py-num:     #004422;
    --py-text:    #001008;
    --py-hdr:     #001408;
    --py-hdr-bd:  #2a9944;
    --py-footer:  #001408;
    --py-kw:      #000099;
    --py-cmt:     #004400;
    --py-str:     #990000;
    --py-num-lit: #660099;
}

body { background: var(--hg-dark); color: rgba(255,255,255,0.85); }

/* ── Spark bar ──────────────────────────────────────────────────────────── */
.spark-bar {
    background: var(--hg-navy);
    padding: 0.52rem 1.2rem;
    display: flex; align-items: center; flex-wrap: wrap; gap: 1.2rem;
    border-bottom: 2px solid var(--hg-purple);
    font-size: 0.88rem;
}
.spark-links { display: flex; gap: 1.2rem; align-items: center; flex-wrap: wrap; }
.spark-links a { color: var(--hg-ghost); font-weight: 700; text-decoration: none; }
.spark-links a:hover { color: #fff; text-decoration: underline; }
.spark-bar > span { color: rgba(255,255,255,0.30); font-size: 0.80rem; margin-left: auto; }

/* ── Hero ───────────────────────────────────────────────────────────────── */
#hero {
    min-height: 34vh;
    background:
        linear-gradient(to bottom, rgba(13,10,20,0.78) 0%, rgba(40,20,70,0.68) 100%),
        url('../images/multipleGhosts-background.gif') center / cover no-repeat;
    background-color: var(--hg-dark);
    color: #fff;
    padding: 4.3rem 1rem 3.4rem;
    text-align: center;
}
.hero-content { max-width: 840px; margin: 0 auto; }
.hero-eyebrow {
    color: rgba(255,255,255,0.40);
    display: block;
    font-size: 0.72rem;
    letter-spacing: 3px;
    margin-bottom: 0.65rem;
    text-transform: uppercase;
}
.hero-title {
    color: var(--hg-ghost);
    font-family: 'Boogaloo', cursive;
    font-size: clamp(2rem, 5.5vw, 3.4rem);
    line-height: 1.12;
    margin-bottom: 0.75rem;
    text-shadow: 0 0 30px rgba(168,85,247,0.55);
}
.hero-subtitle {
    color: rgba(255,255,255,0.68);
    font-size: clamp(0.9rem, 2vw, 1.08rem);
    line-height: 1.68;
    margin: 0 auto;
    max-width: 690px;
}

/* ── Language key pills ─────────────────────────────────────────────────── */
.lang-key {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    justify-content: center; margin-top: 1.2rem;
}
.lang-key-pill {
    align-items: center; border: 1px solid; border-radius: 50px;
    display: inline-flex; font-size: 0.75rem; font-weight: 700;
    gap: 0.35rem; letter-spacing: 0.5px; padding: 0.22rem 0.75rem;
}
.lk-js   { border-color: rgba(247,223,30,0.50);  color: #f7df1e; background: rgba(247,223,30,0.08); }
.lk-java { border-color: rgba(90,200,245,0.50);   color: #5ac8f5; background: rgba(90,200,245,0.08); }
.lk-py   { border-color: rgba(74,222,128,0.50);   color: #4ade80; background: rgba(74,222,128,0.08); }
.lk-dot  { width: 8px; height: 8px; border-radius: 50%; }
.lk-dot-js   { background: #f7df1e; }
.lk-dot-java { background: #5ac8f5; }
.lk-dot-py   { background: #4ade80; }

/* ── Concepts section ───────────────────────────────────────────────────── */
#concepts { background: #f0eef8; padding: 4.5rem 0; }
.concepts-label {
    color: var(--hg-purple);
    font-size: 0.70rem; font-weight: 700;
    letter-spacing: 3px; margin-bottom: 0.4rem; text-transform: uppercase;
}
.concepts-title {
    color: #1e1030;
    font-family: 'Boogaloo', cursive;
    font-size: clamp(1.7rem, 3.5vw, 2.5rem);
    margin-bottom: 0.5rem;
}
.concepts-sub {
    color: #4a3a5f; font-size: 0.92rem;
    line-height: 1.65; margin-bottom: 2.5rem;
}
.concept-card {
    background: #fff;
    border: 1.5px solid rgba(60,20,90,0.12);
    border-top: 4px solid var(--hg-purple);
    border-radius: 14px;
    height: 100%;
    padding: 1.5rem 1.4rem;
}
.concept-card-icon { color: var(--hg-purple); font-size: 1.8rem; margin-bottom: 0.45rem; }
.concept-card-title { color: #1e1030; font-family: 'Boogaloo', cursive; font-size: 1.15rem; margin-bottom: 0.4rem; }
.concept-card-body  { color: #4a3a5f; font-size: 0.875rem; line-height: 1.65; margin: 0; }
.concept-card-body code {
    background: #f0e8ff; border-radius: 3px;
    color: #5a0090; font-family: 'Source Code Pro', monospace;
    font-size: 0.85em; padding: 1px 5px;
}
.formula {
    background: #f9f4ff; border-left: 3px solid var(--hg-purple);
    border-radius: 0 6px 6px 0; color: #1e1030;
    display: block; font-family: 'Source Code Pro', monospace;
    font-size: 0.82rem; margin: 0.55rem 0; padding: 0.4rem 0.75rem;
}
.concept-lang-row { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.65rem; }
.clb { border: 1px solid; border-radius: 50px; font-size: 0.68rem; font-weight: 700; padding: 0.15rem 0.55rem; }
.clb-js   { border-color: #d4b000; color: #7a5800; background: #fffbe0; }
.clb-java { border-color: #3380cc; color: #003d80; background: #e8f3fc; }
.clb-py   { border-color: #2a9944; color: #004422; background: #e8fce8; }

/* ── Code comparison section ────────────────────────────────────────────── */
#codeComparison { background: var(--hg-dark); padding: 5rem 0; }
.code-section-label {
    color: var(--hg-ghost); font-size: 0.70rem; font-weight: 700;
    letter-spacing: 3px; margin-bottom: 0.4rem; text-transform: uppercase;
}
.code-section-title {
    color: #fff; font-family: 'Boogaloo', cursive;
    font-size: clamp(1.7rem, 3.5vw, 2.5rem); margin-bottom: 0.5rem;
}
.code-section-sub {
    color: rgba(255,255,255,0.40); font-size: 0.88rem;
    font-style: italic; margin-bottom: 2.5rem;
}

/* ── Language panels ────────────────────────────────────────────────────── */
.lang-panel {
    border-radius: 14px; box-shadow: 0 4px 24px rgba(0,0,0,0.45);
    display: flex; flex-direction: column; height: 100%; overflow: hidden;
}
.lang-header {
    align-items: center; border-bottom: 2px solid;
    display: flex; flex-shrink: 0; gap: 0.55rem; padding: 0.65rem 1rem;
}
.lang-header-js   { background: var(--js-hdr);   border-color: var(--js-hdr-bd); }
.lang-header-java { background: var(--java-hdr);  border-color: var(--java-hdr-bd); }
.lang-header-py   { background: var(--py-hdr);    border-color: var(--py-hdr-bd); }
.lang-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.lang-dot-js   { background: #f7df1e; }
.lang-dot-java { background: #5ac8f5; }
.lang-dot-py   { background: #4ade80; }
.lang-name     { color: #fff; font-family: 'Boogaloo', cursive; font-size: 1.1rem; }
.lang-filename { color: rgba(255,255,255,0.40); flex: 1; font-family: 'Source Code Pro', monospace; font-size: 0.73rem; }
.lang-copy-btn {
    align-items: center; background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.20); border-radius: 5px;
    color: rgba(255,255,255,0.65); cursor: pointer; display: flex;
    font-family: inherit; font-size: 0.72rem; gap: 5px;
    padding: 3px 10px; transition: all 0.18s;
}
.lang-copy-btn:hover { background: rgba(255,255,255,0.14); color: #fff; }

/* ── Code paper ─────────────────────────────────────────────────────────── */
.code-paper {
    counter-reset: lineno; flex: 1;
    font-family: 'Source Code Pro', monospace; font-size: 0.775rem;
    line-height: 1.62; max-height: 640px; overflow-y: auto;
}
.code-paper ol  { list-style: none; margin: 0; padding: 0; }
.code-paper li  { counter-increment: lineno; display: flex; padding: 0 0.75rem 0 0; }
.code-paper li::before {
    content: counter(lineno); flex-shrink: 0; font-size: 0.70rem;
    line-height: inherit; min-width: 2.5rem;
    padding-right: 0.85rem; text-align: right; user-select: none;
}
.code-paper code { white-space: pre; }

/* Paper colours — JavaScript yellow */
.code-paper-js { background: var(--js-row-a); }
.code-paper-js li:nth-child(even) { background: var(--js-row-b); }
.code-paper-js li::before { color: var(--js-num); }
.code-paper-js code       { color: var(--js-text); }
.code-paper-js .kw { color: var(--js-kw);      font-weight: 700; }
.code-paper-js .cm { color: var(--js-cmt);     font-style: italic; }
.code-paper-js .st { color: var(--js-str); }
.code-paper-js .nm { color: var(--js-num-lit); }

/* Paper colours — Java blue */
.code-paper-java { background: var(--java-row-a); }
.code-paper-java li:nth-child(even) { background: var(--java-row-b); }
.code-paper-java li::before { color: var(--java-num); }
.code-paper-java code       { color: var(--java-text); }
.code-paper-java .kw { color: var(--java-kw);      font-weight: 700; }
.code-paper-java .cm { color: var(--java-cmt);     font-style: italic; }
.code-paper-java .st { color: var(--java-str); }
.code-paper-java .nm { color: var(--java-num-lit); }

/* Paper colours — Python green */
.code-paper-py { background: var(--py-row-a); }
.code-paper-py li:nth-child(even) { background: var(--py-row-b); }
.code-paper-py li::before { color: var(--py-num); }
.code-paper-py code       { color: var(--py-text); }
.code-paper-py .kw { color: var(--py-kw);      font-weight: 700; }
.code-paper-py .cm { color: var(--py-cmt);     font-style: italic; }
.code-paper-py .st { color: var(--py-str); }
.code-paper-py .nm { color: var(--py-num-lit); }

/* ── Panel footer ───────────────────────────────────────────────────────── */
.lang-footer { color: rgba(255,255,255,0.50); flex-shrink: 0; font-size: 0.76rem; padding: 0.6rem 1rem; }
.lang-footer-js   { background: var(--js-footer);   border-top: 1px solid rgba(200,160,0,0.22); }
.lang-footer-java { background: var(--java-footer);  border-top: 1px solid rgba(51,128,204,0.22); }
.lang-footer-py   { background: var(--py-footer);    border-top: 1px solid rgba(42,153,68,0.22); }
.lang-footer a { font-weight: 600; text-decoration: underline; }
.lang-footer-js   a { color: #c8a000; }
.lang-footer-java a { color: #5ac8f5; }
.lang-footer-py   a { color: #4ade80; }
.lang-footer a:hover { color: #fff; }

/* ── Source download bar ────────────────────────────────────────────────── */
.source-bar {
    align-items: center; border-top: 1px solid rgba(255,255,255,0.07);
    display: flex; flex-wrap: wrap; gap: 0.75rem;
    margin-top: 2.5rem; padding-top: 2rem;
}
.source-label { color: rgba(255,255,255,0.28); font-size: 0.68rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; width: 100%; }
.source-btn {
    align-items: center; border: 1px solid; border-radius: 50px;
    display: inline-flex; font-size: 0.78rem; font-weight: 600;
    gap: 0.4rem; padding: 0.38rem 1rem; text-decoration: none;
    transition: background 0.18s, transform 0.12s;
}
.source-btn:hover { transform: translateY(-1px); text-decoration: none; }
.source-btn-js   { border-color: rgba(247,223,30,0.40); color: #f7df1e; }
.source-btn-js:hover   { background: rgba(247,223,30,0.10); color: #f7df1e; }
.source-btn-java { border-color: rgba(90,200,245,0.40);  color: #5ac8f5; }
.source-btn-java:hover { background: rgba(90,200,245,0.10); color: #5ac8f5; }
.source-btn-py   { border-color: rgba(74,222,128,0.40);  color: #4ade80; }
.source-btn-py:hover   { background: rgba(74,222,128,0.10); color: #4ade80; }

/* ── Note card ──────────────────────────────────────────────────────────── */
.note-card {
    background: rgba(124,58,237,0.07); border: 1px solid rgba(124,58,237,0.22);
    border-left: 4px solid var(--hg-purple); border-radius: 0 10px 10px 0;
    color: rgba(255,255,255,0.68); font-size: 0.9rem; line-height: 1.7;
    margin-top: 2rem; padding: 1rem 1.25rem;
}
.note-card h3 { color: var(--hg-ghost); font-family: 'Boogaloo', cursive; font-size: 1.25rem; margin-bottom: 0.45rem; }
.note-card code { background: rgba(255,255,255,0.10); border-radius: 3px; padding: 1px 5px; }

/* ── Page nav ───────────────────────────────────────────────────────────── */
#pageNav { background: #0a0714; border-top: 1px solid rgba(124,58,237,0.18); padding: 2rem 0; }
.nav-links { align-items: center; display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; }
.nav-btn {
    align-items: center; border-radius: 50px; display: inline-flex;
    font-size: 0.875rem; font-weight: 600; gap: 0.5rem;
    padding: 0.55rem 1.4rem; text-decoration: none;
    transition: background 0.2s, transform 0.15s;
}
.nav-btn:hover { transform: translateY(-1px); text-decoration: none; }
.nav-btn-back  { border: 1.5px solid rgba(255,255,255,0.22); color: rgba(255,255,255,0.70); }
.nav-btn-back:hover  { background: rgba(255,255,255,0.08); color: #fff; }
.nav-btn-live  { background: var(--hg-purple); color: #fff; border: none; }
.nav-btn-live:hover  { background: var(--hg-violet); color: #fff; }
.nav-btn-home  { background: rgba(124,58,237,0.12); border: 1.5px solid rgba(124,58,237,0.42); color: var(--hg-ghost); }
.nav-btn-home:hover  { background: rgba(124,58,237,0.22); color: var(--hg-ghost); }