/* ============================================
   INFINITY OS - BUTTON COMPONENTS
   Neon Glassmorphic Buttons
   ============================================ */

/* ============================================
   BASE BUTTON STYLES
   ============================================ */

.infinity-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.infinity-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-text {
    position: relative;
    z-index: 2;
}

.btn-icon {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
}

/* ============================================
   BUTTON SIZES
   ============================================ */

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
}

.btn-md {
    padding: var(--space-md) var(--space-lg);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--space-lg) var(--space-xl);
    font-size: 1rem;
}

/* ============================================
   PRIMARY BUTTON (Neon Cyan)
   ============================================ */

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: var(--bg);
    border-color: var(--accent);
    box-shadow: var(--glow);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.2));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    box-shadow: var(--glow-strong);
    transform: translateY(-2px);
}

.btn-primary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    box-shadow: var(--glow-strong), 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.btn-primary:active {
    transform: translateY(0);
}

/* ============================================
   SECONDARY BUTTON (Glassmorphic)
   ============================================ */

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    color: var(--text-primary);
    border-color: var(--glass-border);
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent);
    box-shadow: var(--glow);
}

.btn-secondary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);
}

/* ============================================
   GHOST BUTTON (Transparent)
   ============================================ */

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

.btn-ghost:hover {
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 5%, transparent);
    border-color: var(--border);
}

.btn-ghost:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ============================================
   DANGER BUTTON (Neon Magenta)
   ============================================ */

.btn-danger {
    background: linear-gradient(135deg, var(--neon-magenta), rgba(255, 0, 170, 0.8));
    color: var(--text-primary);
    border-color: var(--neon-magenta);
    box-shadow: 0 0 20px rgba(255, 0, 170, 0.3);
}

.btn-danger:hover {
    box-shadow: var(--glow-magenta);
    transform: translateY(-2px);
}

/* ============================================
   SUCCESS BUTTON (Neon Green)
   ============================================ */

.btn-success {
    background: linear-gradient(135deg, var(--neon-green), rgba(0, 255, 136, 0.8));
    color: var(--bg-primary);
    border-color: var(--neon-green);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.btn-success:hover {
    box-shadow: var(--glow-green);
    transform: translateY(-2px);
}

/* ============================================
   OUTLINE BUTTONS
   ============================================ */

.btn-outline-primary {
    background: transparent;
    color: var(--accent);
    border-color: var(--accent);
}

.btn-outline-primary:hover {
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    box-shadow: var(--glow);
}

.btn-outline-secondary {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--glass-border);
}

.btn-outline-secondary:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 5%, transparent);
}

/* ============================================
   ICON-ONLY BUTTONS
   ============================================ */

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

.btn-icon.btn-lg {
    width: 48px;
    height: 48px;
}

/* ============================================
   BUTTON GROUP
   ============================================ */

.btn-group {
    display: inline-flex;
    gap: var(--space-sm);
}

.btn-group .infinity-btn {
    border-radius: 0;
}

.btn-group .infinity-btn:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.btn-group .infinity-btn:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

/* ============================================
   LOADING STATE
   ============================================ */

.infinity-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.infinity-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}