/* ============================================================
   web.css — the Web Coding track (HTML, CSS, JavaScript, canvas)

   Only the pieces the Python lessons do not already have: the live preview
   frame, the worked examples in the Description tab, and the track card on
   the hub. Everything else — tabs, tasks, code blocks, info boxes — is
   borrowed from python.css so the two tracks feel like one course.
   ============================================================ */

/* ---- the two previews: what to aim for, and what you made ----
   Side by side wherever there is room, so comparing them is a glance and
   not a scroll. On a narrow screen auto-fit drops them into one column. */
.web-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
    margin-top: 12px;
}
.web-goal, .web-stage {
    border: 3px solid #2c3e50;
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
}
.web-goal { border-color: #2e8b57; }
.web-goal::before, .web-stage::before {
    display: block;
    color: #fff;
    font-family: Menlo, Consolas, monospace;
    font-size: 0.78em;
    letter-spacing: 1px;
    padding: 5px 10px;
}
.web-goal::before { content: '🎯 What you are aiming for'; background: #2e8b57; }
.web-stage::before { content: '🖥️ Yours'; background: #2c3e50; }

.web-preview, .goal-preview {
    display: block;
    width: 100%;
    height: 240px;
    border: 0;
    background: #fff;
}

/* The goal for a JavaScript task is what it PRINTS, not the blank page it
   draws — so that one shows an output box and hides the frame. */
.goal-output {
    margin: 0;
    padding: 12px 14px;
    font-family: Menlo, Consolas, monospace;
    font-size: 0.88em;
    line-height: 1.55;
    white-space: pre-wrap;
    color: #111;
    min-height: 3em;
}
.task[data-kind="js"] .goal-preview { display: none; }
.task:not([data-kind="js"]) .goal-output { display: none; }

/* A JavaScript task has nothing to look at, so its own frame stays quiet
   and the output box under the buttons does the talking. */
.web-stage.stage-quiet { display: none; }

/* ---- worked examples inside the Description tab ---- */
.web-demo {
    margin: 16px 0;
    border: 2px solid #d9e2ec;
    border-radius: 10px;
    overflow: hidden;
    background: #f8fafc;
}
.web-demo .demo-code {
    display: block;
    margin: 0;
    padding: 12px 16px;
    background: #1e2a36;
    color: #e6f1ff;
    font-family: Menlo, Consolas, monospace;
    font-size: 0.88em;
    line-height: 1.55;
    white-space: pre;
    overflow-x: auto;
}
.web-demo .demo-label {
    display: block;
    background: #d9e2ec;
    color: #2c3e50;
    font-family: Menlo, Consolas, monospace;
    font-size: 0.76em;
    letter-spacing: 1px;
    padding: 5px 12px;
}
.web-demo .web-preview { height: 170px; border-top: 2px solid #d9e2ec; }
.web-demo.demo-tall .web-preview { height: 280px; }

/* ---- a tag broken into its parts ---- */
.tag-anatomy {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 14px 0;
}
.tag-part {
    flex: 1 1 150px;
    border: 2px solid #4a90d9;
    border-radius: 8px;
    padding: 10px 12px;
    background: #f2f8fd;
}
.tag-part code {
    display: block;
    font-size: 1.05em;
    color: #1a5490;
    margin-bottom: 4px;
}
.tag-part span { font-size: 0.88em; color: #45596b; }

/* ---- the track card on the Python hub ---- */
.track-card.track-web { border-color: #e67e22; }
.track-card.track-web .track-level { background: #e67e22; }
.track-card.track-web:hover { box-shadow: 0 10px 24px rgba(230, 126, 34, 0.25); }

/* ---- a reference table of canvas commands ---- */
.canvas-table-wrap { overflow-x: auto; margin: 14px 0; }
.canvas-table { border-collapse: collapse; width: 100%; min-width: 480px; }
.canvas-table th, .canvas-table td {
    border: 1px solid #cfd8e3;
    padding: 8px 12px;
    text-align: left;
    font-size: 0.93em;
}
.canvas-table th { background: #2c3e50; color: #fff; }
.canvas-table td code { font-size: 0.92em; }
.canvas-table tr:nth-child(even) td { background: #f6f9fc; }

@media (max-width: 600px) {
    .web-preview { height: 200px; }
    .web-demo .demo-code { font-size: 0.8em; }
}