/* ============================================
   Elastic Tangle — Loom Experience
   play.loom.web.id/elastic-tangle/
   ============================================ */

:root {
    --bg: #151324;
    --text: #fdf4eb;
    --text-dim: rgba(253, 244, 235, 0.42);
    --yellow: #fde047;
    --mint: #6ee7b7;
    --lavender: #c4b5fd;
    --coral: #fca5a5;
    --shadow-solid: #090710;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    font-family: 'Cabinet Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    touch-action: none;
}

/* Full-screen interactive canvas */
#tangle-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    cursor: default;
    z-index: 1;
}

/* Back navigation */
.back-link {
    position: fixed;
    top: 3.5vh;
    left: 4vw;
    z-index: 30;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dim);
    text-decoration: none;
    letter-spacing: 0.04em;
    opacity: 0;
    transition: color 0.2s ease, opacity 0.3s ease, transform 0.2s ease;
}

.back-link:hover {
    color: var(--text);
    transform: translateX(-2px);
}

/* Header HUD */
.header-hud {
    position: fixed;
    top: 3vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    pointer-events: none;
    text-align: center;
}

.exp-title {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: rgba(253, 244, 235, 0.95);
}

.hint-text {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-dim);
    letter-spacing: 0.04em;
    background: rgba(21, 19, 36, 0.65);
    backdrop-filter: blur(6px);
    padding: 0.25rem 0.9rem;
    border-radius: 999px;
    border: 1px solid rgba(253, 244, 235, 0.08);
}

/* Bottom Toolbar */
.toolbar {
    position: fixed;
    bottom: 4vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: #26213d;
    color: var(--text);
    border: 2px solid #3d3560;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    padding: 0.45rem 1rem;
    border-radius: 999px;
    box-shadow: 0 4px 0 var(--shadow-solid);
    cursor: pointer;
    transition: transform 0.1s ease, box-shadow 0.1s ease, background 0.15s ease;
}

.tool-btn:hover {
    background: #312a4f;
    transform: translateY(-2px);
    box-shadow: 0 6px 0 var(--shadow-solid);
}

.tool-btn:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 var(--shadow-solid);
}

.tool-icon {
    color: var(--yellow);
    font-size: 0.95rem;
}

/* Rabbit hole door banner */
.rabbit-hole-door {
    position: fixed;
    bottom: 11vh;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    z-index: 30;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.rabbit-hole-door.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.rabbit-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: #6ee7b7;
    color: #123d2e;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    box-shadow: 0 4px 0 #287a5c;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.rabbit-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 0 #287a5c;
}

.rabbit-link:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 #287a5c;
}