/* ==========================================================================
   PatchWorld UI - Components Layer
   --------------------------------------------------------------------------
   Shared reusable UI components for LocalUI views:
   - Buttons (.pw-btn, variants)
   - Rail controls (.pw-rail-btn)
   - Badges & Status (.pw-badge, .pw-live-badge)
   - Shimmer Skeletons (.pw-skeleton)
   - Error & Empty States (.pw-error-box, .pw-empty-box)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Buttons
   -------------------------------------------------------------------------- */
.pw-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: var(--hit-min);
    padding: var(--space-2) var(--space-5);
    border: var(--border-width) solid transparent;
    border-radius: var(--radius-lg);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    transition: background-color var(--duration-fast),
                border-color var(--duration-fast),
                color var(--duration-fast),
                transform var(--duration-fast);
}

.pw-btn:active {
    transform: scale(0.98);
}

.pw-btn svg {
    flex: none;
    width: var(--icon-sm);
    height: var(--icon-sm);
}

/* Primary (Accent) */
.pw-btn--primary {
    background-color: var(--color-accent);
    color: var(--color-text-on-accent);
}

.pw-btn--primary:hover {
    background-color: var(--color-accent-hover);
}

/* Ghost / Secondary */
.pw-btn--ghost {
    background-color: rgba(12, 11, 26, 0.5);
    border-color: var(--color-border);
    color: var(--color-text);
}

.pw-btn--ghost:hover {
    border-color: var(--color-accent-2);
    background-color: var(--color-surface-hover);
}

/* Small button */
.pw-btn--sm {
    min-height: 36px;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   2. Badges & Live indicator
   -------------------------------------------------------------------------- */
.pw-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: 1.4;
    background-color: var(--color-surface-input);
    color: var(--color-text-muted);
}

.pw-badge--accent {
    background-color: var(--color-accent-tint);
    color: var(--color-accent-2);
}

.pw-live-badge {
    position: absolute;
    top: var(--space-2);
    left: var(--space-2);
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1-5);
    padding: 3px 10px;
    background: rgba(23, 21, 32, 0.85);
    border: 1px solid rgba(110, 231, 183, 0.4);
    border-radius: var(--radius-pill);
    font-size: var(--font-size-2xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.03em;
    color: var(--color-live);
    backdrop-filter: blur(4px);
    pointer-events: none;
}

.pw-live-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-round);
    background-color: var(--color-live);
    box-shadow: 0 0 6px var(--color-live);
    animation: pw-pulse 1.8s infinite ease-in-out;
}

/* Card Badges Container (prevents overlap of Multiplayer and Draft/Device badges) */
.pw-card__badges {
    position: absolute;
    top: var(--space-2);
    left: var(--space-2);
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-1-5);
    pointer-events: none;
    max-width: calc(100% - var(--space-4));
}

.pw-card__badges .pw-live-badge,
.pw-card__badges .pw-card-badge {
    position: relative;
    top: auto;
    left: auto;
}

.pw-card-badge {
    position: absolute;
    top: var(--space-2);
    left: var(--space-2);
    z-index: 2;
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    font-size: var(--font-size-2xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.03em;
    backdrop-filter: blur(4px);
    pointer-events: none;
}

.pw-card-badge--draft {
    background: rgba(30, 27, 46, 0.88);
    border: 1px solid rgba(167, 139, 250, 0.35);
    color: var(--color-accent-2);
}

.pw-card-badge--local {
    background: rgba(20, 25, 40, 0.88);
    border: 1px solid rgba(56, 189, 248, 0.4);
    color: #38bdf8;
}

/* --------------------------------------------------------------------------
   2b. Pill Tabs (Mode Switcher e.g. Cloud vs On device)
   -------------------------------------------------------------------------- */
.pw-pill-tabs {
    display: inline-flex;
    align-items: center;
    padding: 4px;
    background-color: var(--color-surface-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    gap: var(--space-1-5);
}

.pw-pill-tab {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    height: 40px;
    padding: 0 var(--space-4);
    border: none;
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color var(--duration-fast), color var(--duration-fast), box-shadow var(--duration-fast);
}

.pw-pill-tab svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    flex-shrink: 0;
}

.pw-pill-tab:hover {
    color: var(--color-text);
    background-color: var(--color-surface-raised);
}

.pw-pill-tab.is-active {
    background-color: var(--color-accent);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.35);
}

/* --------------------------------------------------------------------------
   3. Rail navigation buttons
   -------------------------------------------------------------------------- */
.pw-rail-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-round);
    background-color: var(--color-surface-input);
    border: var(--border-width) solid var(--color-border);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: background-color var(--duration-fast),
                border-color var(--duration-fast),
                color var(--duration-fast);
}

.pw-rail-btn:hover {
    background-color: var(--color-surface-raised);
    border-color: var(--color-accent-2);
    color: var(--color-text);
}

.pw-rail-btn svg {
    width: 21px;
    height: 21px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.4;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* --------------------------------------------------------------------------
   4. Loading Skeletons
   -------------------------------------------------------------------------- */
@keyframes pw-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.pw-skeleton {
    background: linear-gradient(
        90deg,
        var(--palette-ink-850) 0%,
        var(--palette-ink-750) 50%,
        var(--palette-ink-850) 100%
    );
    background-size: 200% 100%;
    animation: pw-shimmer 1.8s infinite ease-in-out;
    border-radius: var(--radius-md);
}

.pw-skeleton-hero {
    height: 320px;
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-6);
    border: var(--border-width) solid var(--color-border);
}

.pw-skeleton-section {
    margin-bottom: var(--space-6);
}

.pw-skeleton-title {
    width: 200px;
    height: 24px;
    margin-bottom: var(--space-4);
    border-radius: var(--radius-sm);
}

.pw-skeleton-rail {
    display: flex;
    gap: var(--space-4);
    overflow: hidden;
}

.pw-skeleton-card {
    flex: none;
    width: 230px;
    height: 240px;
    border-radius: var(--radius-xl);
    border: var(--border-width) solid var(--color-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.pw-skeleton-card__thumb {
    height: 150px;
    border-radius: 0;
}

.pw-skeleton-card__body {
    flex: 1;
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.pw-skeleton-line {
    height: 14px;
    border-radius: var(--radius-xs);
}

.pw-skeleton-line--short {
    width: 60%;
}

/* --------------------------------------------------------------------------
   5. Error & Empty States
   -------------------------------------------------------------------------- */
.pw-error-box,
.pw-empty-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-10) var(--space-6);
    text-align: center;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-xl);
    background-color: rgba(29, 27, 38, 0.5);
    color: var(--color-text-muted);
}

.pw-error-box__title,
.pw-empty-box__title {
    font-family: var(--font-head);
    font-size: var(--font-size-xl);
    color: var(--color-text);
}

.pw-error-box__msg {
    max-width: 480px;
    font-size: var(--font-size-md);
    line-height: var(--line-height-base);
}