/**
 * Tutorial.css - Tutorial overlay styles
 * @version 0.12.0
 */

/* ─── Overlay container ─────────────────────────────────────────────────── */
.tutorial-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    isolation: isolate;
    pointer-events: none;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tutorial-overlay.visible {
    display: block;
    opacity: 1;
    pointer-events: all;
}

.tutorial-overlay.non-blocking {
    pointer-events: none;
}

/* ─── Dark mask ─────────────────────────────────────────────────────────── */
.tutorial-mask {
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: rgba(0, 0, 0, 0.75);
    pointer-events: none;
}

.tutorial-overlay.visible:not(.non-blocking) .tutorial-mask {
    pointer-events: all;
    display: block;
}

.tutorial-overlay.visible.non-blocking .tutorial-mask {
    display: none;
}

/* ─── Highlight cutout ──────────────────────────────────────────────────── */
.tutorial-highlight {
    position: fixed;
    display: none;
    z-index: 10002;
    border: 3px solid var(--color-accent-cyan);
    border-radius: var(--radius-md);
    pointer-events: none;

    box-shadow:
        0 0 0 9999px rgba(0, 0, 0, 0.75),
        0 0 24px 4px var(--color-accent-cyan),
        inset 0 0 0 9999px rgba(255, 255, 255, 0.06);

    filter: brightness(1.15) drop-shadow(0 0 8px var(--color-accent-cyan));

    animation: tutorial-pulse 2s ease-in-out infinite;
}

.tutorial-overlay.visible.non-blocking .tutorial-highlight {
    box-shadow:
        0 0 24px 4px var(--color-accent-cyan),
        inset 0 0 0 9999px rgba(255, 255, 255, 0.06);
    filter: brightness(1.15) drop-shadow(0 0 8px var(--color-accent-cyan));
}

@keyframes tutorial-pulse {
    0%, 100% {
        box-shadow:
            0 0 0 9999px rgba(0, 0, 0, 0.75),
            0 0 24px 4px var(--color-accent-cyan),
            inset 0 0 0 9999px rgba(255, 255, 255, 0.06);
        filter: brightness(1.15) drop-shadow(0 0 8px var(--color-accent-cyan));
    }
    50% {
        box-shadow:
            0 0 0 9999px rgba(0, 0, 0, 0.75),
            0 0 48px 8px var(--color-accent-cyan),
            inset 0 0 0 9999px rgba(255, 255, 255, 0.10);
        filter: brightness(1.25) drop-shadow(0 0 16px var(--color-accent-cyan));
    }
}

/* ─── Content box ───────────────────────────────────────────────────────── */
.tutorial-content {
    position: fixed;
    z-index: 10003;
    background: var(--color-bg-medium);
    border: 2px solid var(--color-accent-cyan);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);

    width: clamp(280px, calc(100vw - 40px), 500px);
    max-height: calc(100vh - 40px);
    overflow-y: auto;

    box-shadow:
        0 0 30px rgba(0, 255, 204, 0.3),
        0 4px 20px rgba(0, 0, 0, 0.5);
    pointer-events: all !important;
    isolation: isolate;

    transition: top 0.25s ease, left 0.25s ease,
                right 0.25s ease, bottom 0.25s ease;
}

.tutorial-content * {
    pointer-events: auto;
}

.tutorial-content button,
.tutorial-content .btn {
    pointer-events: auto !important;
    cursor: pointer !important;
    position: relative;
    z-index: 1;
}

.tutorial-content.minimized {
    padding: var(--spacing-md);
    width: clamp(240px, calc(100vw - 40px), 350px);
    opacity: 0.95;
}

.tutorial-content.success {
    border-color: var(--color-success);
    box-shadow:
        0 0 30px rgba(0, 255, 136, 0.3),
        0 4px 20px rgba(0, 0, 0, 0.5);
}

.tutorial-content-inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* ─── Typography ────────────────────────────────────────────────────────── */
.tutorial-title {
    color: var(--color-accent-cyan);
    font-size: 20px;
    font-weight: bold;
    margin: 0;
    text-shadow: 0 0 10px rgba(0, 255, 204, 0.5);
}

.tutorial-content.success .tutorial-title {
    color: var(--color-success);
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.tutorial-content.minimized .tutorial-title {
    font-size: 16px;
}

.tutorial-text {
    color: var(--color-text-primary);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.tutorial-content.minimized .tutorial-text {
    font-size: 12px;
}

/* ─── Progress area ─────────────────────────────────────────────────────── */
.tutorial-progress-area {
    min-height: 20px;
}

.tutorial-progress-text {
    color: var(--color-success);
    font-size: 14px;
    font-weight: bold;
    transition: color 0.3s ease;
}

.tutorial-progress-text.highlight {
    color: var(--color-accent-yellow);
    text-shadow: 0 0 10px rgba(255, 204, 0, 0.5);
}

/* ─── Buttons ───────────────────────────────────────────────────────────── */
.tutorial-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.tutorial-btn-skip {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-dim);
    font-size: 12px;
    padding: var(--spacing-xs) var(--spacing-sm);
    pointer-events: auto;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.tutorial-btn-skip:hover {
    color: var(--color-text-primary);
    border-color: var(--color-border-light);
}

.tutorial-btn-continue {
    min-width: 120px;
    pointer-events: auto;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

/* ─── Auto-tune button (in CalibrationScreen) ───────────────────────────── */
.btn-auto-tune {
    position: relative;
    overflow: hidden;
    user-select: none;
    border-color: var(--color-accent-yellow);
    color: var(--color-accent-yellow);
}

.btn-auto-tune:hover:not(:disabled) {
    background: rgba(255, 204, 0, 0.1);
}

.btn-auto-tune.active {
    background: rgba(255, 204, 0, 0.15);
    box-shadow: 0 0 12px rgba(255, 204, 0, 0.4);
}

.btn-auto-tune:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.auto-tune-cost-ticker {
    font-size: 11px;
    color: var(--color-accent-yellow);
    opacity: 0.8;
    margin-top: 2px;
    min-height: 14px;
    text-align: center;
}

/* ─── Small-screen overrides ────────────────────────────────────────────── */
@media (max-width: 480px) {
    .tutorial-title {
        font-size: 16px;
    }

    .tutorial-text {
        font-size: 12px;
        line-height: 1.5;
    }

    .tutorial-content {
        padding: var(--spacing-md);
        width: clamp(260px, calc(100vw - 32px), 500px);
        max-height: calc(100vh - 32px);
    }

    .tutorial-buttons {
        flex-direction: column-reverse;
        gap: var(--spacing-sm);
    }

    .tutorial-btn-continue,
    .tutorial-btn-skip {
        width: 100%;
        text-align: center;
    }
}