/* ============================================
   FATA ORGANA — Layers of Reality
   ============================================ */

/* --- Control Bar --- */
.layer-control {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    margin: 1.5rem 0;
    border: 1px solid rgba(196, 163, 90, 0.15);
    background: rgba(196, 163, 90, 0.03);
    flex-wrap: wrap;
}

.layer-gauge {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.layer-gauge-label {
    font-family: var(--mono);
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: rgba(196, 163, 90, 0.5);
    white-space: nowrap;
}

.layer-gauge-pips {
    display: flex;
    gap: 4px;
}

.layer-pip {
    width: 8px;
    height: 8px;
    border: 1px solid rgba(196, 163, 90, 0.2);
    background: transparent;
    transition: background 0.3s, border-color 0.3s;
}

.layer-pip.active {
    background: rgba(196, 163, 90, 0.5);
    border-color: rgba(196, 163, 90, 0.4);
}

.layer-info {
    font-family: var(--mono);
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(230, 225, 215, 0.5);
    flex: 1;
    min-width: 100px;
}

.layer-btn {
    font-family: var(--mono);
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 0.4rem 0.8rem;
    border: 1px solid rgba(196, 163, 90, 0.2);
    background: transparent;
    color: rgba(196, 163, 90, 0.6);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    white-space: nowrap;
}

.layer-btn:hover:not(:disabled) {
    color: rgba(196, 163, 90, 0.9);
    border-color: rgba(196, 163, 90, 0.4);
    background: rgba(196, 163, 90, 0.05);
}

.layer-btn:disabled {
    opacity: 0.25;
    cursor: default;
}

.layer-btn-deeper {
    border-color: rgba(196, 163, 90, 0.3);
    animation: deeperPulse 3s ease-in-out infinite;
}

.layer-btn-deeper:disabled {
    animation: none;
}

.layer-btn-surface:not(:disabled) {
    border-color: rgba(196, 163, 90, 0.25);
}

@keyframes deeperPulse {
    0%, 100% { border-color: rgba(196, 163, 90, 0.2); }
    50% { border-color: rgba(196, 163, 90, 0.45); }
}

/* --- Transition Animations --- */

/* Phase 1: Dissolve — text scrambles and breaks apart */
@keyframes dissolve {
    0% {
        opacity: 1;
        filter: none;
        transform: none;
    }
    20% {
        opacity: 0.9;
        filter: blur(0px);
        transform: translateX(0);
    }
    40% {
        opacity: 0.7;
        filter: blur(1px);
        transform: translateX(-2px);
    }
    50% {
        opacity: 0.5;
        filter: blur(1px) contrast(1.5);
        transform: translateX(3px) skewX(-0.5deg);
    }
    65% {
        opacity: 0.3;
        filter: blur(2px) contrast(2);
        transform: translateX(-4px) skewX(1deg);
    }
    80% {
        opacity: 0.15;
        filter: blur(3px) contrast(3) saturate(0);
        transform: translateX(2px) skewX(-0.5deg);
    }
    100% {
        opacity: 0;
        filter: blur(4px) contrast(4) saturate(0);
        transform: translateX(0);
    }
}

.layer-dissolving {
    animation: dissolve 0.7s ease-in forwards;
    pointer-events: none;
}

/* Horizontal tear lines during dissolve */
.layer-dissolving::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 3px,
        rgba(196, 163, 90, 0.04) 3px,
        rgba(196, 163, 90, 0.04) 4px
    );
    animation: tearLines 0.1s steps(2) infinite;
    pointer-events: none;
    z-index: 10;
}

@keyframes tearLines {
    0% { transform: translateY(0); }
    50% { transform: translateY(-1px); }
    100% { transform: translateY(1px); }
}

/* Phase 3: Reform — text assembles from noise */
@keyframes reform {
    0% {
        opacity: 0;
        filter: blur(4px) contrast(3) saturate(0);
        transform: translateX(0);
    }
    15% {
        opacity: 0.1;
        filter: blur(3px) contrast(2.5) saturate(0);
        transform: translateX(3px);
    }
    30% {
        opacity: 0.3;
        filter: blur(2px) contrast(2);
        transform: translateX(-2px) skewX(0.5deg);
    }
    50% {
        opacity: 0.5;
        filter: blur(1px) contrast(1.5);
        transform: translateX(2px) skewX(-0.3deg);
    }
    70% {
        opacity: 0.7;
        filter: blur(0.5px) contrast(1.2);
        transform: translateX(-1px);
    }
    85% {
        opacity: 0.9;
        filter: blur(0px);
        transform: translateX(0);
    }
    100% {
        opacity: 1;
        filter: none;
        transform: none;
    }
}

.layer-forming {
    animation: reform 0.8s ease-out forwards;
}

/* Content layers need relative positioning for tear lines */
[data-layer] {
    position: relative;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    .layer-control {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .layer-info {
        order: -1;
        width: 100%;
    }

    .layer-btn {
        width: 100%;
        text-align: center;
    }
}

/* --- Layer Tooltip --- */
.layer-control {
    position: relative;
}

.layer-tooltip {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.5rem;
    padding: 0.6rem 0.8rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 0.6rem;
    color: var(--text-dim);
    line-height: 1.5;
    max-width: 300px;
    z-index: 200;
    white-space: normal;
    letter-spacing: 0.01em;
}

.layer-control:hover .layer-tooltip {
    display: block;
}