/* ══════════════ BUTTONS ══════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    border: none;
    border-radius: var(--radius-sm);
    font: 600 0.9rem var(--font);
    cursor: pointer;
    transition: all var(--transition);
    outline: none;
}

/* Button Disabled & Loading States */
.btn:disabled, .btn.disabled {
    opacity: 0.6;
    cursor: not-allowed !important;
    pointer-events: none !important;
    transform: none !important;
    box-shadow: none !important;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    gap: 4px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    color: #fff;
    box-shadow: 0 4px 18px rgba(99, 138, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(99, 138, 255, 0.35);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.04);
}

.btn-danger {
    background: linear-gradient(135deg, var(--red), #dc2626);
    color: #fff;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
}


/* ══════════════ QUICK ADD ══════════════ */
.quick-add-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.btn-quick-add {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all var(--transition);
    color: var(--text-main);
    font-weight: 500;
}

.btn-quick-add:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-quick-add .qa-amount {
    color: var(--accent);
    font-weight: 700;
    white-space: nowrap;
}

.btn-quick-add .qa-note {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 18ch;
}

/* ══════════════ TOOLTIPS ══════════════ */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::before,
[data-tooltip]::after {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
    z-index: 1000;
    pointer-events: none;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    background: rgba(15, 23, 42, 0.95);
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    white-space: nowrap;
    bottom: 100%;
    left: 50%;
    transform: translate(-50%, 0) scale(0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-tooltip]:hover::before,
[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

[data-tooltip]:hover::after {
    transform: translate(-50%, -8px) scale(1);
}

/* Tooltip position: bottom */
[data-tooltip][data-tooltip-pos="bottom"]::after {
    bottom: auto;
    top: 100%;
    transform: translate(-50%, 0) scale(0.95);
}

[data-tooltip][data-tooltip-pos="bottom"]:hover::after {
    transform: translate(-50%, 8px) scale(1);
}

/* Tooltip position: left */
[data-tooltip][data-tooltip-pos="left"]::after {
    bottom: auto;
    top: 50%;
    left: auto;
    right: 100%;
    transform: translate(0, -50%) scale(0.95);
}

[data-tooltip][data-tooltip-pos="left"]:hover::after {
    transform: translate(-8px, -50%) scale(1);
}