/* ══════════════════════════════════════
   Viscar - Demo Page (scroll-driven, split layout)
   ══════════════════════════════════════ */

/* ── Hero ── */
.demo-hero {
    padding: calc(100px + env(safe-area-inset-top, 0px)) 2.5rem 3rem;
    text-align: center;
    position: relative;
    z-index: 1;
    background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(30,111,255,0.12) 0%, transparent 65%);
}

    .demo-hero .section-title {
        margin-bottom: 0.6rem;
    }

.scroll-hint {
    margin-top: 2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--txt3);
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    animation: bounceHint 2s infinite;
}

    .scroll-hint svg {
        width: 14px;
        height: 14px;
    }

@keyframes bounceHint {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(6px);
    }
}

/* ── Sticky scroll stage ── */
.demo-stage {
    position: relative;
    height: 600vh;
    z-index: 1;
}

.demo-pin {
    position: sticky;
    top: 0;
    height: 100vh;
    height: 100dvh;   /* avoid clipping under the iOS Safari toolbar */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0 2rem;
}

/* ── Split: JSON (left) + Canvas (right) ── */
.demo-split {
    display: grid;
    grid-template-columns: minmax(380px, 1fr) minmax(0, 1.5fr);
    gap: 1.5rem;
    width: 100%;
    max-width: 1400px;
    height: min(82vh, 720px);
}

/* ── JSON Panel (left) ── */
.demo-json-panel {
    background: #06101e;
    border: 1px solid var(--border);
    border-radius: 1.1rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    min-height: 0;
}

.json-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.7rem 1rem;
    background: rgba(255,255,255,0.02);
    border-bottom: 1px solid var(--border2);
    flex-shrink: 0;
}

.json-tabs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--mono);
    font-size: 0.78rem;
}

.json-method {
    padding: 0.15rem 0.5rem;
    background: rgba(48,209,88,0.12);
    color: var(--green);
    border-radius: 0.3rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.json-url {
    color: var(--txt2);
}

.json-id {
    color: var(--cyan);
}

.json-status {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--green);
    letter-spacing: 0.04em;
    padding: 0.15rem 0.5rem;
    background: rgba(48,209,88,0.08);
    border-radius: 0.3rem;
    border: 1px solid rgba(48,209,88,0.2);
}

.json-body {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 1rem 1.2rem;
    min-height: 0;
}

    .json-body pre {
        margin: 0;
        font-family: var(--mono);
        font-size: 0.78rem;
        line-height: 1.6;
        color: var(--txt2);
        white-space: pre-wrap;
        word-break: break-word;
    }

    .json-body code {
        font-family: inherit;
    }

/* JSON syntax colors */
.json-key {
    color: var(--violet);
}

.json-string {
    color: var(--green);
}

.json-number {
    color: var(--amber);
}

.json-bool {
    color: var(--red);
}

.json-null {
    color: var(--txt3);
}

.json-comment {
    color: var(--txt3);
    font-style: italic;
}

.json-new {
    background: rgba(0,194,255,0.08);
    border-left: 2px solid var(--cyan);
    margin-left: -8px;
    padding-left: 6px;
    animation: jsonHighlight 1.6s ease;
}

@keyframes jsonHighlight {
    0% {
        background: rgba(0,194,255,0.25);
    }

    100% {
        background: rgba(0,194,255,0.08);
    }
}

/* Custom scrollbar for JSON panel */
.json-body::-webkit-scrollbar {
    width: 6px;
}

.json-body::-webkit-scrollbar-track {
    background: transparent;
}

.json-body::-webkit-scrollbar-thumb {
    background: rgba(100,170,255,0.15);
    border-radius: 3px;
}

    .json-body::-webkit-scrollbar-thumb:hover {
        background: rgba(100,170,255,0.3);
    }

/* ── Caption box (inside left panel, below JSON) ── */
.caption-box {
    border-top: 1px solid var(--border2);
    padding: 1.2rem 1.2rem 1.4rem;
    background: rgba(7,17,32,0.6);
    flex-shrink: 0;
    max-height: 38%;
    overflow-y: auto;
}

.caption-step {
    display: none;
}

    .caption-step.active {
        display: block;
        animation: captionIn 0.4s ease;
    }

@keyframes captionIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.caption-tag {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--cyan);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

    .caption-tag.dev::after {
        content: 'IN DEV';
        background: rgba(245,158,11,0.15);
        color: var(--amber);
        padding: 0.1rem 0.4rem;
        border-radius: 3px;
        font-size: 0.6rem;
        letter-spacing: 0.08em;
    }

.caption-h {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.45rem;
    letter-spacing: -0.015em;
    color: var(--txt);
}

.caption-p {
    color: var(--txt2);
    font-size: 0.84rem;
    line-height: 1.55;
    margin-bottom: 0.7rem;
}

.caption-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

    .caption-bullets li {
        font-size: 0.78rem;
        color: var(--txt2);
        padding-left: 1rem;
        position: relative;
        line-height: 1.5;
    }

        .caption-bullets li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.55em;
            width: 6px;
            height: 1px;
            background: var(--cyan);
        }

/* ── Canvas wrap (right) ── */
.demo-canvas-wrap {
    position: relative;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 1.1rem;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

#demoCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* ── Map legend overlay (bottom-right of canvas) ── */
.map-legend-overlay {
    position: absolute;
    bottom: 1.2rem;
    right: 1.2rem;
    z-index: 10;
    background: rgba(7,17,32,0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 0.7rem;
    padding: 0.75rem 0.95rem;
    min-width: 180px;
    max-width: 240px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}

.map-legend-step {
    display: none;
}

    .map-legend-step.active {
        display: flex;
        flex-direction: column;
        gap: 0.4rem;
        animation: legendIn 0.4s ease;
    }

@keyframes legendIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.map-legend-overlay .legend-row {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.74rem;
    color: var(--txt2);
}

.map-legend-overlay .legend-swatch {
    width: 16px;
    height: 4px;
    border-radius: 2px;
    flex-shrink: 0;
}

.map-legend-overlay .legend-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.map-legend-overlay .legend-note {
    font-size: 0.68rem;
    color: var(--txt3);
    font-style: italic;
    padding-top: 0.3rem;
    border-top: 1px solid var(--border2);
    margin-top: 0.15rem;
}

    .map-legend-overlay .legend-note span {
        padding-left: 0;
    }

/* ── Step indicator (top-left of canvas) ── */
.step-indicator {
    position: absolute;
    top: 1.2rem;
    left: 1.2rem;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    background: rgba(7,17,32,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 0.7rem;
    padding: 0.7rem 0.9rem;
}

.step-dot {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--txt3);
    letter-spacing: 0.05em;
    transition: color 0.3s;
}

    .step-dot::before {
        content: '';
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--txt3);
        transition: background 0.3s, box-shadow 0.3s;
        flex-shrink: 0;
    }

    .step-dot.active {
        color: var(--cyan);
    }

        .step-dot.active::before {
            background: var(--cyan);
            box-shadow: 0 0 10px var(--cyan);
        }

/* ── Outro ── */
.demo-outro {
    padding: 5rem 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
    background: radial-gradient(ellipse 60% 40% at 50% 50%, rgba(30,111,255,0.1) 0%, transparent 60%);
}

    .demo-outro h2 {
        font-size: clamp(1.6rem, 3vw, 2.2rem);
        font-weight: 800;
        margin-bottom: 0.8rem;
        letter-spacing: -0.02em;
    }

    .demo-outro p {
        color: var(--txt2);
        max-width: 540px;
        margin: 0 auto;
        font-size: 1rem;
    }

/* ── Responsive ── */
@media (max-width: 1100px) {
    .demo-pin {
        padding: 0 1rem;
    }

    .demo-split {
        grid-template-columns: minmax(320px, 1fr) minmax(0, 1.3fr);
        gap: 1rem;
    }

    .json-body pre {
        font-size: 0.72rem;
    }

    .caption-h {
        font-size: 1.05rem;
    }

    .caption-p {
        font-size: 0.78rem;
    }
}

@media (max-width: 820px) {
    /* Stack vertically on tablets/phones - canvas above, JSON below */
    .demo-pin {
        align-items: flex-start;
        padding: 0.5rem;
    }

    .demo-split {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
        gap: 0.8rem;
        height: calc(100vh - 1rem);
        height: calc(100dvh - 1rem);   /* iOS Safari dynamic-toolbar safe */
    }

    /* Chart (canvas) on top, code below. The panels render JSON-then-canvas in
       DOM order for the desktop left/right split, so flip them on mobile. */
    .demo-canvas-wrap { order: -1; }
    .demo-json-panel  { order: 0; }

    .step-indicator {
        top: 0.8rem;
        left: 0.8rem;
        padding: 0.5rem 0.7rem;
    }

    .step-dot {
        font-size: 0.62rem;
    }

        .step-dot:not(.active) span {
            display: none;
        }

    .json-body pre {
        font-size: 0.72rem;
    }

    .caption-box {
        max-height: 50%;
        padding: 1rem;
    }

    .caption-h {
        font-size: 1rem;
    }

    .caption-bullets li {
        font-size: 0.74rem;
    }
}

@media (max-width: 480px) {
    .demo-hero {
        padding-top: calc(80px + env(safe-area-inset-top, 0px));
    }

    .demo-split {
        gap: 0.6rem;
    }

    .json-header {
        padding: 0.5rem 0.7rem;
    }

    .json-tabs {
        font-size: 0.7rem;
    }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    .scroll-hint {
        animation: none;
    }

    .caption-step.active {
        animation: none;
    }

    .json-new {
        animation: none;
    }
}

/* ── Light-theme overrides (these surfaces hardcode dark values) ── */
[data-theme="light"] .demo-json-panel { background: #f3f6fc; }
[data-theme="light"] .json-header { background: rgba(20,50,110,0.03); }
[data-theme="light"] .caption-box { background: rgba(20,50,110,0.03); }
[data-theme="light"] .map-legend-overlay,
[data-theme="light"] .step-indicator { background: rgba(255,255,255,0.9); }